[arm] Improve handling of DImode comparisions against constants.

[thirdparty/gcc.git] / gcc / ChangeLog

2019-10-18  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.md (cbranchdi4): Accept reg_or_int_operand for
        operand 2.
        (cstoredi4): Similarly, but for operand 3.
        * config/arm/arm.c (arm_canoncialize_comparison): Allow
        canonicalization of unsigned compares with a constant on Arm.
        Prefer using const+1 and adjusting the comparison over swapping the
        operands whenever the original constant was not valid.
        (arm_gen_dicompare_reg): If Y is not a valid operand, force it to a
        register here.
        (arm_validize_comparison): Do not force invalid DImode operands to
        registers here.

2019-10-18  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.c (arm_select_cc_mode): For DImode equality tests
        return CC_Zmode if comparing against a constant where one word is
        zero.
        (arm_gen_compare_reg): Split DImode handling to ...
        (arm_gen_dicompare_reg): ... here.  Handle equality comparisons
        against simple constants.
        * config/arm/arm.md (arm_cmpdi_zero): Delete pattern.

2019-10-18  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.md (subsi3_carryin_shift_alt): New pattern.
        (rsbsi3_carryin_shift_alt): Likewise.

2019-10-18  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.md (negscc_borrow): New pattern.
        (mov_negscc): Don't split if the insn would match negscc_borrow.
        * config/arm/thumb2.md (thumb2_mov_negscc): Likewise.
        (thumb2_mov_negscc_strict_it): Likewise.

2019-10-18  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.c (arm_insn_cost): New function.
        (TARGET_INSN_COST): Override default definition.

2019-10-18  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.c (arm_rtx_costs_internal, case MINUS): Handle
        borrow operations.

2019-10-18  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.c (strip_carry_operation): New function.
        (arm_rtx_costs_internal, case PLUS): Handle addtion with carry-in
        for SImode.

2019-10-18  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/predicates.md (arm_carry_operation): New special
        predicate.
        * config/arm/iterators.md (LTUGEU): Delete iterator.
        (cnb): Delete code attribute.
        (optab): Delete ltu and geu elements.
        * config/arm/arm.md (addsi3_carryin): Renamed from
        addsi3_carryin_<optab>.  Remove iterator and use arm_carry_operand.
        (add0si3_carryin): Similarly, but from add0si3_carryin_<optab>.
        (addsi3_carryin_alt2): Similarly, but from addsi3_carryin_alt2_<optab>.
        (addsi3_carryin_clobercc): Similarly.
        (addsi3_carryin_shift): Similarly.  Do not allow register shifts in
        Thumb2 state.

2019-10-18  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.md (arm_subdi3): Delete insn.
        (zextendsidi_negsi, negdi_extendsidi): Delete insn_and_split.

2019-10-18  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm-modes.def (CC_RSB): New CC mode.
        * config/arm/predicates.md (arm_borrow_operation): Handle CC_RSBmode.
        * config/arm/arm.c (arm_select_cc_mode): Detect when we should
        return CC_RSBmode.
        (maybe_get_arm_condition_code): Handle CC_RSBmode.
        * config/arm/arm.md (subsi3_carryin): Make this pattern available to
        expand.
        (subdi3): Rewrite to early-expand the sub-operations.
        (rsb_im_compare): New pattern.
        (negdi2): Delete.
        (negdi2_insn): Delete.
        (arm_negsi2): Correct type attribute to alu_imm.
        (negsi2_0compare): New insn pattern.
        (negsi2_carryin): New insn pattern.

2019-10-18  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.md (addsi3_carryin_alt2): Use arm_not_operand for
        operand 2.

2019-10-18  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.md (addsi3_carryin_shift_<optab>): Reorder operands
        to match canonical form.

2019-10-18  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.md (zero_extend<mode>di2): Convert to define_expand.
        (extend<mode>di2): Likewise.

2019-10-18  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm-protos.h (arm_decompose_di_binop): New prototype.
        * config/arm/arm.c (arm_decompose_di_binop): New function.
        * config/arm/arm.md (adddi3): Also accept any const_int for op2.
        If not generating Thumb-1 code, decompose the operation into 32-bit
        pieces.
        * add0si_carryin_<optab>: New pattern.

2019-10-18  Richard Earnshaw  <rearnsha@arm.com>

        * arm.md (adddi3): Only accept register operands.
        (arm_adddi3): Convert to simple insn with no split.  Do not accept
        constants.
        (adddi_sesidi_di): Delete patern.
        (adddi_zesidi_di): Likewise.
        (uaddv<mode>4): Use LTU as condition for branch.
        (adddi3_compareV): Convert to simple insn with no split.
        (addsi3_compareV_upper): Delete pattern.
        (adddi3_compareC): Convert to simple insn with no split.  Correct
        flags setting expression.
        (addsi3_compareC_upper): Delete pattern.
        (addsi3_compareC): Correct flags setting expression.
        (subdi3_compare1): Convert to simple insn with no split.
        (subsi3_carryin_compare): Delete pattern.
        (arm_subdi3): Convert to simple insn with no split.
        (subdi_zesidi): Delete pattern.
        (subdi_di_sesidi): Delete pattern.
        (subdi_zesidi_di): Delete pattern.
        (subdi_sesidi_di): Delete pattern.
        (subdi_zesidi_zesidi): Delete pattern.
        (negvdi3): Use s_register_operand.
        (negdi2_compare): Convert to simple insn with no split.
        (negdi2_insn): Likewise.
        (negsi2_carryin_compare): Delete pattern.
        (negdi_zero_extendsidi): Delete pattern.
        (arm_cmpdi_insn): Convert to simple insn with no split.
        (negdi2): Don't call gen_negdi2_neon.
        * config/arm/neon.md (adddi3_neon): Delete pattern.
        (subdi3_neon): Delete pattern.
        (negdi2_neon): Delete pattern.
        (splits for negdi2_neon): Delete splits.

2019-10-18  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/92153
        * ggc-page.c (release_pages): Read g->alloc_size before free rather
        than after it.

2019-10-18  Andre Vieira  <andre.simoesdiasvieira@arm.com>

        * config/arm/t-multilib: Add rule to regenerate mutlilib header file
        with any change to t-multilib, t-aprofile and t-rmprofile.  Also add
        new multilib variants and new mappings.

2019-10-18  Georg-Johann Lay  <avr@gjlay.de>

        PR target/86040
        * config/avr/avr.c (avr_out_lpm): Do not shortcut-return.

2019-10-18  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
            Richard Sandiford  <richard.sandiford@arm.com>

        PR target/86753
        * tree-vectorizer.h (scalar_cond_masked_key): New struct,
        and define hashmap traits for it.
        (loop_vec_info::scalar_cond_masked_set): New member.
        (vect_record_loop_mask): Adjust prototype.
        * tree-vectorizer.c (scalar_cond_masked_key::get_cond_ops_from_tree):
        Implement method.
        * tree-vect-loop.c (vectorizable_reduction): Pass NULL as last arg to
        vect_record_loop_mask.
        (vectorizable_live_operation): Likewise.
        (vect_record_loop_mask): New param scalar_mask. Add entry
        cond, loop_mask to scalar_cond_masked_set if scalar_mask is non NULL.
        * tree-vect-stmts.c (check_load_store_masking): New param scalar_mask.
        Pass it as last arg to vect_record_loop_mask.
        (vectorizable_call): Pass scalar_mask as last arg to
        vect_record_loop_mask.
        (vectorizable_store): Likewise.
        (vectorizable_load): Likewise.
        (vectorizable_condition): Check if another part of vectorized code
        applies loop_mask to condition or to it's inverse, and if yes,
        apply loop_mask to result of vector comparison.

2019-10-17  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/pa.c (pa_output_indirect_call): Fix typos in last change.

2019-10-18  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/92056
        * tree-ssa-strlen.c (determine_min_objsize): Call init_object_sizes
        before calling compute_builtin_object_size.

2019-10-17  Iain Sandoe  <iain@sandoe.co.uk>

        PR target/65342
        * config/rs6000/darwin.md (movdi_low, movsi_low_st): Delete.
        (movdi_low_st): Delete.
        * config/rs6000/rs6000.c
        (darwin_rs6000_legitimate_lo_sum_const_p): New.
        (mem_operand_gpr): Validate Mach-O LO_SUM cases separately.
        * config/rs6000/rs6000.md (movsi_low): Delete.

2019-10-17  Jason Merrill  <jason@redhat.com>

        * gimplify.h (get_initialized_tmp_var): Add default argument to
        post_p.
        * gimplify.c (gimplify_self_mod_expr, gimplify_omp_atomic): Remove
        NULL post_p argument.
        * targhooks (std_gimplify_va_arg_expr): Likewise.

2019-10-17  Richard Biener  <rguenther@suse.de>

        * tree-vectorizer.h (_stmt_vec_info::cond_reduc_code): Remove.
        (STMT_VINFO_VEC_COND_REDUC_CODE): Likewise.
        * tree-vectorizer.c (vec_info::new_stmt_vec_info): Do not
        initialize STMT_VINFO_VEC_COND_REDUC_CODE.
        * tree-vect-loop.c (vect_is_simple_reduction): Set
        STMT_VINFO_REDUC_CODE.
        (vectorizable_reduction): Remove dead and redundant code, use
        STMT_VINFO_REDUC_CODE instead of STMT_VINFO_VEC_COND_REDUC_CODE.

2019-10-17  Georg-Johann Lay  <avr@gjlay.de>

        Fix breakage introduced by r276985.

        * config/avr/avr.c (avr_option_override): Remove set of
        PARAM_ALLOW_STORE_DATA_RACES.
        * common/config/avr/avr-common.c (avr_option_optimization_table)
        [OPT_LEVELS_ALL]: Turn on -fallow-store-data-races.

2019-10-17  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.h (processor_costs): Add clear_ratio.
        (CLEAR_RATIO): Remove MIN and use ix86_cost->clear_ratio.
        * config/i386/x86-tune-costs.h: Set clear_ratio to the minimum
        of 6 and move_ratio in all cost models.

2019-10-17  Richard Biener  <rguenther@suse.de>

        * tree-vect-loop.c (check_reduction_path): Compute reduction
        operation here.
        (vect_is_simple_reduction): Remove special-case of single-stmt
        reduction path detection.

2019-10-17  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm-cpus.in (marvel-pj4): Add +fp to the architecture.

2019-10-17  Yuliang Wang  <yuliang.wang@arm.com>

        * config/aarch64/aarch64-sve2.md (aarch64_sve2_eor3<mode>)
        (aarch64_sve2_nor<mode>, aarch64_sve2_nand<mode>)
        (aarch64_sve2_bsl<mode>, aarch64_sve2_nbsl<mode>)
        (aarch64_sve2_bsl1n<mode>, aarch64_sve2_bsl2n<mode>):
        New combine patterns.
        * config/aarch64/iterators.md (BSL_DUP): New int iterator for the
        above.
        (bsl_1st, bsl_2nd, bsl_dup, bsl_mov): Attributes for the above.

2019-10-17  Aldy Hernandez  <aldyh@redhat.com>

        * tree-vrp.c (value_range_base::dump): Display +INF for both
        pointers and integers when appropriate.

2019-10-17  Andre Vieira  <andre.simoesdiasvieira@arm.com>

        * tree-vect-loop.c (vect_analyze_loop_2): Use same condition to decide
        when to use versioning threshold.

2019-10-17  Andre Vieira  <andre.simoesdiasvieira@arm.com>

        * tree-vect-loop.c (determine_peel_for_niter): New function contained
        outlined code from ...
        (vect_analyze_loop_2): ... here.

2019-10-17  Andre Vieira  <andre.simoesdiasvieira@arm.com>

        * tree-vect-loop.c (vect_transform_loop): Move code from here...
        * tree-vect-loop-manip.c (vect_loop_versioning): ... to here.
        * tree-vectorizer.h (vect_loop_versioning): Remove unused parameters.

2019-10-17  Richard Biener  <rguenther@suse.de>

        * tree-vect-loop.c (needs_fold_left_reduction_p): Export.
        (vect_is_simple_reduction): Move all validity checks ...
        (vectorizable_reduction): ... here.  Compute whether we
        need a fold-left reduction here.
        * tree-vect-patterns.c (vect_reassociating_reduction_p): Merge
        both overloads, check needs_fold_left_reduction_p directly.
        * tree-vectorizer.h (needs_fold_left_reduction_p): Declare.

2019-10-17  Richard Biener  <rguenther@suse.de>

        * tree-ssa-pre.c (create_component_ref_by_pieces_1): Fix
        TARGET_MEM_REF creation.

2019-10-17  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/92129
        * tree-vect-loop.c (vectorizable_reduction): Also fail
        on GIMPLE_SINGLE_RHS.

2019-10-17  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/92056
        * tree-object-size.c (cond_expr_object_size): Return early if then_
        processing resulted in unknown size.

        PR tree-optimization/92115
        * tree-ssa-ifcombine.c (ifcombine_ifandif): Force condition into
        temporary if it could trap.

2019-10-17  Richard Biener  <rguenther@suse.de>

        PR debug/91887
        * dwarf2out.c (gen_formal_parameter_die): Also try to match
        context_die against a DW_TAG_GNU_formal_parameter_pack parent.

2019-10-16  Jakub Jelinek  <jakub@redhat.com>

        * tree-ssa-strlen.c (maybe_invalidate): Use
        HOST_WIDE_INT_PRINT_UNSIGNED instead of "%zu".

2019-10-16  Andrew Burgess  <andrew.burgess@embecosm.com>
            Jim Wilson  <jimw@sifive.com>

        * config/riscv/riscv.h (REG_CLASS_CONTENTS): Add argument passing
        regs to SIBCALL_REGS.
        * config/riscv/riscv.c (riscv_regno_to_class): Change argument
        passing regs to SIBCALL_REGS.

2019-10-16  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/83821
        * tree-ssa-strlen.c (maybe_invalidate): Add argument.  Consider
        the length of a string when available.
        (handle_builtin_memset) Add argument.
        (handle_store, strlen_check_and_optimize_call): Same.
        (check_and_optimize_stmt): Same.  Pass it to callees.

2019-10-16  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/91996
        * tree-ssa-strlen.c (maybe_warn_pointless_strcmp): Improve location
        information.
        (compare_nonzero_chars): Add an overload.
        (count_nonzero_bytes): Add an argument.  Call overload above.
        Handle non-constant lengths in some range.
        (handle_store): Add an argument.
        (check_and_optimize_stmt): Pass an argument to handle_store.

2019-10-16  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.c (neon_valid_immediate): Clear bytes before use.

2019-10-16  Mihailo Stojanovic  <mistojanovic@wavecomp.com>

        * config/mips/mips.c (mips_expand_builtin_insn): Force the
        operands which correspond to the same input-output register to
        have the same pseudo assigned to them.

2019-10-16  Ilya Leoshkevich  <iii@linux.ibm.com>

        * cfgrtl.c (find_partition_fixes): Remove bbs_in_cold_partition.

2019-10-16  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (aarch64_classify_symbol):
        Apply reasonable limit to symbol offsets.

2019-10-16  Richard Biener  <rguenther@suse.de>

        * tree-vect-loop.c (vect_valid_reduction_input_p): Remove.
        (vect_is_simple_reduction): Delay checking to
        vectorizable_reduction and relax the checking.
        (vectorizable_reduction): Check we have a simple use.  Check
        for bogus condition reductions.
        * tree-vect-stmts.c (vect_transform_stmt): Make sure we
        are looking at the last stmt in a pattern sequence when
        filling in backedge PHI values.

2019-10-16  Peter Bergner <bergner@linux.ibm.com>
            Jiufu Guo  <guojiufu@linux.ibm.com>

        PR target/70010
        * config/rs6000/rs6000.c (rs6000_can_inline_p): Prohibit inlining if
        the callee explicitly disables some isa_flags the caller is using.

2019-10-16  Richard Sandiford  <richard.sandiford@arm.com>

        * function-abi.cc (expr_callee_abi): Assert for POINTER_TYPE_P.

2019-10-16  Richard Sandiford  <richard.sandiford@arm.com>

        * genmodes.c (mode_data::order): New field.
        (blank_mode): Update accordingly.
        (VECTOR_MODES_WITH_PREFIX): Add an order parameter.
        (make_vector_modes): Likewise.
        (VECTOR_MODES): Update use accordingly.
        (cmp_modes): Sort by the new order field ahead of sorting by size.
        * config/aarch64/aarch64-modes.def (VNx2QI, VN2xHI, VNx2SI)
        (VNx4QI, VNx4HI, VNx8QI): New partial vector modes.
        * config/aarch64/aarch64.c (VEC_PARTIAL): New flag value.
        (aarch64_classify_vector_mode): Handle the new partial modes.
        (aarch64_vl_bytes): New function.
        (aarch64_hard_regno_nregs): Use it instead of BYTES_PER_SVE_VECTOR
        when counting the number of registers in an SVE mode.
        (aarch64_class_max_nregs): Likewise.
        (aarch64_hard_regno_mode_ok): Don't allow partial vectors
        in registers yet.
        (aarch64_classify_address): Treat partial vectors analogously
        to full vectors.
        (aarch64_print_address_internal): Consolidate the printing of
        MUL VL addresses, using aarch64_vl_bytes as the number of
        bytes represented by "VL".
        (aarch64_vector_mode_supported_p): Reject partial vector modes.

2019-10-16  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.c (aarch64_layout_frame): Use is_constant
        rather than known_lt when choosing frame layouts.

2019-10-16  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.c (aarch64_layout_frame): Assert
        that all the adjustments add up to the full frame size.
        Use crtl->outgoing_args_size directly as the final adjustment
        where appropriate.

2019-10-16  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.c (aarch64_layout_frame): Use a local
        "frame" reference instead of always referring directly to
        "cfun->machine->frame".

2019-10-16  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/92119
        * tree-vect-patterns.c (vect_recog_rotate_pattern): Guard
        against missing bswap lhs.

2019-10-16  Richard Sandiford  <richard.sandiford@arm.com>

        PR middle-end/92033
        * poly-int.h (constant_lower_bound_with_limit): New function.
        (constant_upper_bound_with_limit): Likewise.
        * doc/poly-int.texi: Document them.
        * tree-vrp.c (value_range_base::set): Convert POLY_INT_CST bounds
        into the worst-case INTEGER_CST bounds.

2019-10-16  Feng Xue  <fxue@os.amperecomputing.com>

        PR ipa/91088
        * doc/invoke.texi (ipa-max-param-expr-ops): Document new option.
        * params.def (PARAM_IPA_MAX_PARAM_EXPR_OPS): New.
        * ipa-predicat.h (struct expr_eval_op): New struct.
        (expr_eval_ops): New typedef.
        (struct condition): Add type and param_ops fields, remove size field.
        (add_condition): Replace size parameter with type parameter, add
        param_ops parameter.
        * ipa-predicat.c (expr_eval_ops_equal_p): New function.
        (predicate::add_clause): Add comparisons on type and param_ops.
        (dump_condition): Add debug dump for param_ops.
        (remap_after_inlining): Adjust call arguments to add_condition.
        (add_condition): Replace size parameter with type parameter, add
        param_ops parameter. Unshare constant value used in conditions.
        * ipa-fnsummary.c (evaluate_conditions_for_known_args): Fold
        parameter expressions using param_ops.
        (decompose_param_expr):  New function.
        (set_cond_stmt_execution_predicate): Use call to decompose_param_expr
        to replace call to unmodified_parm_or_parm_agg_item.
        (set_switch_stmt_execution_predicate): Likewise.
        (will_be_nonconstant_expr_predicate): Likewise. Replace usage of size
        with type.
        (inline_read_section): Read param_ops from summary stream.
        (ipa_fn_summary_write): Write param_ops to summary stream.

2019-10-15  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/92107
        * genattrtab.c (write_attr_value) <do_operator>: Parenthesize the
        expression written.

2019-10-15  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.c: Update description of fix and continue.

2019-10-15  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.c (darwin_binds_local_p): Update to call
        default_binds_local_p_3 () directly. amend comments.

2019-10-15  Richard Biener  <rguenther@suse.de>

        * lto-streamer-out.c (lto_variably_modified_type_p): New.
        (tree_is_indexable): Use it.
        * tree-streamer-out.c (pack_ts_type_common_value_fields):
        Stream variably_modified_type_p as TYPE_LANG_FLAG_0.
        * tree-streamer-in.c (unpack_ts_type_common_value_fields): Likewise.

2019-10-15  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        * config/msp430/msp430.md (zero_extendqipsi2): New.
        (zero_extendqisi2): Optimize case where src register and base dst
        register are the same.
        (zero_extendhipsi2): Don't use 430X insn for rYs->r case.
        (zero_extendpsisi2): Optimize r->m case.
        Add unnamed insn patterns to catch insns combine searches for when
        optimizing pointer manipulation.

2019-10-15  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        * config/msp430/msp430.md: Group zero_extend* insns together.

2019-10-15  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        * config/msp430/constraints.md: Allow post_inc operand for "Ya"
        constraint.
        * config/msp430/msp430.c (msp430_legitimate_address_p): Handle
        POST_INC.
        (msp430_subreg): Likewise.
        (msp430_split_addsi): Likewise.
        (msp430_print_operand_addr): Likewise.
        * config/msp430/msp430.h (HAVE_POST_INCREMENT): Define.
        (USE_STORE_POST_INCREMENT): Define.
        * config/msp430/msp430.md: Use the msp430_general_dst_operand or
        msp430_general_dst_nonv_operand predicates for the lvalues of insns.
        * config/msp430/predicates.md (msp430_nonpostinc_operand): New.
        (msp430_general_dst_operand): New.
        (msp430_general_dst_nonv_operand): New.
        (msp430_nonsubreg_operand): Remove.
        (msp430_nonsubreg_dst_operand): New.
        (msp430_nonsubreg_or_imm_operand): Allow reg or mem operands in place
        of defunct msp430_nonsubreg_operand.
        (msp430_nonsubregnonpostinc_or_imm_operand): New.

2019-10-15  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91929
        * tree-ssa-pre.c (pre_expr_d::loc): New member.
        (get_or_alloc_expr_for_name): Initialize it.
        (get_or_alloc_expr_for_constant): Likewise.
        (phi_translate_1): Copy it.
        (create_expression_by_pieces): Use the original location
        of the expression for the inserted stmt.
        (compute_avail): Record the location of the stmt for the
        expressions created.

2019-10-15  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-ssa-strlen.c (count_nonzero_bytes): Check tree_fits_uhwi_p
        before using tree_to_uhwi.

2019-10-15  Ilya Leoshkevich  <iii@linux.ibm.com>

        * config/s390/s390.md: Run %a0:DI splitters only after reload.

2019-10-15  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/92094
        * tree-vect-loop.c (vectorizable_reduction): For nested cycles
        do not adjust the reduction definition def type.
        * tree-vect-stmts.c (vect_transform_stmt): Verify the scalar stmt
        defines the latch argument of the PHI.

2019-10-15  Hongyu Wang  <hongtao.wang@intel.com>

        PR target/92035
        * config/i386/avx512fintrin.h (_mm_mask_roundscale_ss,
        _mm_maskz_roundscale_ss, _mm_maskz_roundscale_round_ss,
        _mm_maskz_roundscale_round_ss, _mm_mask_roundscale_sd,
        _mm_maskz_roundscale_sd, _mm_mask_roundscale_round_sd,
        _mm_maskz_roundscale_round_sd): New intrinsics.
        (_mm_roundscale_ss, _mm_roundscale_round_ss): Use
        __builtin_ia32_rndscales?_mask_round builtins instead of
        __builtin_ia32_rndscales?_round.
        * config/i386/i386-builtin.def (__builtin_ia32_rndscaless_round,
        __builtin_ia32_rndscalesd_round): Remove.
        (__builtin_ia32_rndscaless_mask_round,
        __builtin_ia32_rndscalesd_mask_round): New intrinsics.
        * config/i386/sse.md
        (avx512f_rndscale<mode><round_saeonly_name>): Renamed to ...
        (avx512f_rndscale<mode><mask_scalar_name><round_saeonly_scalar_name>):
         ... this, adjust and add subst atrributes to make it maskable.

2019-10-15  Richard Biener  <rguenther@suse.de>

        PR middle-end/92046
        * common.opt (fallow-store-data-races): New.
        * params.def (PARAM_ALLOW_STORE_DATA_RACES): Remove.
        * params.h (ALLOW_STORE_DATA_RACES): Likewise.
        * doc/invoke.texi (fallow-store-data-races): Document.
        (--param allow-store-data-races): Remove docs.
        * opts.c (default_options_table): Enable -fallow-store-data-races
        at -Ofast.
        (default_options_optimization): Do not enable --param
        allow-store-data-races at -Ofast.
        * tree-if-conv.c (ifcvt_memrefs_wont_trap): Use flag_store_data_races
        instead of PARAM_ALLOW_STORE_DATA_RACES.
        * tree-ssa-loop-im.c (execute_sm): Likewise.

2019-10-15  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR tree-optimization/92085
        * tree-if-conv.c (ifcvt_local_dce): Call gsi_next in else clause,
        instead of calling it unconditionally after
        delete_dead_or_redundant_assignment and fix indentation.

2019-10-15  Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

        * config/arm/vfp.md (fma<SDF:mode>4): Enable DF only when
        TARGET_VFP_DOUBLE.
        (*fmsub<SDF:mode>4): Likewise.
        *fnmsub<SDF:mode>4): Likewise.
        (*fnmadd<SDF:mode>4): Likewise.

2019-10-14 Joel Hutton  <Joel.Hutton@arm.com>

        * doc/tree-ssa.texi: Update renamed macro name.

2019-10-14  Mihailo Stojanovic  <mistojanovic@wavecomp.com>

        * config/mips/mips.c (mips_cannot_force_const_mem): Reject
        vector constants.

2019-10-14  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.c: Use unsigned ints for the picbase label
        counters, initialise the vars explicitly.
        (update_pic_label_number_if_needed): Move a variable declaration
        to where it's needed.
        (machopic_output_function_base_name): Use a more strict checking
        assert, and and unsigned int for the picbase label counter.
        (machopic_get_function_picbase): Likewise.

2019-10-14  Richard Biener  <rguenther@suse.de>

        PR middle-end/92046
        * dse.c (scan_insn): Use param max_active_local_stores.
        (dse_step1): Get PARAM_MAX_DSE_ACTIVE_LOCAL_STORES and adjust
        based on optimization level.
        * loop-invariant.c (move_loop_invariants): Adjust
        LOOP_INVARIANT_MAX_BBS_IN_LOOP based on optimization level.
        * opts.c (default_options_optimization): Do not adjust
        PARAM_MAX_DSE_ACTIVE_LOCAL_STORES and
        LOOP_INVARIANT_MAX_BBS_IN_LOOP here.

2019-10-14  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/arm/arm.c (arm_legitimize_address): Remove Thumb-2 bailout.

2019-10-14  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/arm/arm.c (arm_option_override): Don't override sched
        pressure algorithm.

2019-10-14  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/92069
        * tree-vect-loop.c (vect_analyze_scalar_cycles_1): For nested
        cycles do not set vect_nested_cycle on the latch definition.

2019-10-14  Richard Sandiford  <richard.sandiford@arm.com>

        * function-abi.h (expr_callee_abi): Declare.
        * function-abi.cc (expr_callee_abi): New function.

2019-10-14  Aldy Hernandez  <aldyh@redhat.com>

        * tree-vrp.c (value_range_base::set): Normalize unsigned ~[0,0]
        into [1,MAX].
        * tree-vrp.h (value_range_base::nonzero_p): Adjust for unsigned
        non-zero being represented as [1,MAX].

2019-10-14  Xiong Hu Luo  <luoxhu@linux.ibm.com>

        * tree-sra.c (dump_access): Add missing braces.

2019-10-13  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.c (machopic_indirection_name): Rework the
        function to emit linker-visible symbols only for indirections
        in the data section.  Clean up the code and update comments.

2019-10-13  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.c (machopic_indirect_data_reference): Remove
        redundant code.

2019-10-13  Nathan Sidwell  <nathan@acm.org>

        * gengtype-lex.l (CXX_KEYWORD): Add 'mutable'.

2019-10-13  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * doc/sourcebuild.texi (Test Directives, Add Options): Remove
        c99_runtime.

2019-10-12  Jan Hubicka  <hubicka@ucw.cz>

        * lto-streamer-out.c (collect_block_tree_leafs): Renumber statements
        so non-virutal are before virutals.
        (output_function): Avoid body modifications.

2019-10-12  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/pa.c (pa_output_call): Load descriptor address to register
        %r22.  Load function address before global pointer.
        (pa_attr_length_indirect_call): Adjust length of inline versions of
        $$dyncall.
        (pa_output_indirect_call): Remove fast inline version of $$dyncall
        before normal cases.  Update inline $$dyncall sequences to preserve
        function descriptor address in register %r22.
        (TRAMPOLINE_CODE_SIZE): Adjust.
        (pa_asm_trampoline_template): Revise 32-bit trampoline.  Don't assume
        register %r22 contains trampoline address.
        (pa_trampoline_init): Adjust offsets.
        (pa_trampoline_adjust_address): Likewise.
        * config/pa/pa.h (TRAMPOLINE_SIZE): Adjust 32-bit size.

2019-10-12  Iain Sandoe  <iain@sandoe.co.uk>

        PR target/67183
        * config/darwin.c (machopic_indirection): New field to flag
        non-lazy-symbol-pointers in the data section.
        (machopic_indirection_name): Compute if an indirection should
        appear in the data section.
        (machopic_output_data_section_indirection): New callback split
        from machopic_output_indirection.
        (machopic_output_stub_indirection): Likewise.
        (machopic_output_indirection): Retain the code for non-lazy
        symbol pointers in their regular section.
        (machopic_finish): Use the new callbacks to order the indirection
        output.

2019-10-12  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin-protos.h (machopic_finish): Delete.
        * config/darwin.c (machopic_finish): Make static.

2019-10-12  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.c (darwin_file_end): Only emit empty CTOR/DTOR
        sections when building kernel extension code.

2019-10-12  Palmer Dabbelt  <palmer@sifive.com>

        * doc/extend.texi (Alternate Keywords): Change "-std=c11" to "a
        later standard."

2019-10-12  John David Anglin  <danglin@gcc.gnu.org>

        * gcc/config/pa/pa.c (pa_option_override): Remove trailing comma
        from warning.

2019-10-12  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/92063
        * tree-eh.c (operation_could_trap_helper_p) <case COND_EXPR>
        <case VEC_COND_EXPR>: Return false with *handled = false.
        (tree_could_trap_p): For {,VEC_}COND_EXPR return false instead of
        recursing on the first operand.
        * fold-const.c (simple_operand_p_2): Use generic_expr_could_trap_p
        instead of tree_could_trap_p.
        * tree-ssa-sccvn.c (vn_nary_may_trap): Formatting fixes.

2019-10-11  Jim Wilson  <jimw@sifive.com>

        PR rtl-optimization/91860
        * combine.c (subst): If new_rtx is a constant, also check for
        SIGN_EXTEND when deciding whether to call simplify_unary_operation.

2019-10-11  Richard Sandiford  <richard.sandiford@arm.com>

        * expr.c (store_expr): Use rtx_to_poly_int64 rather than
        INTVAL when calling store_bit_field.

2019-10-11  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/arm/arm.h (HONOR_REG_ALLOC_ORDER): Set when optimizing for
        size.

2019-10-11  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * tree-vect-loop.c (vect_analyze_loop_operations): Adjust call to
        vectorizable_live_operation.
        (vectorizable_live_operation): Adjust parameters.
        * tree-vect-stmts.c (vect_init_vector,
        vect_gen_widened_results_half): Fix typo in function comment.
        (can_vectorize_live_stmts): Adjust function comment.
        Adjust parameters.  Adjust call to vectorizable_live_operation.
        (vect_analyze_stmt): Adjust call to can_vectorize_live_stmts.
        (vect_transform_stmt): Adjust function comment.  Adjust call to
        can_vectorize_live_stmts.
        * tree-vectorizer.h (vectorizable_live_operation): Adjust parameters.

2019-10-11  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90883
        PR tree-optimization/91091
        * tree-ssa-sccvn.c (vn_reference_lookup_3): Use correct
        alias-sets both for recording VN table entries and continuing
        walking after translating through copies.  Handle same-sized
        reads from SSA names by returning the plain SSA name.
        (eliminate_dom_walker::eliminate_stmt): Properly handle
        non-size precision stores in redundant store elimination.

2019-10-11  Jan Hubicka  <hubicka@ucw.cz>

        * ggc-page.c (release_pages): Output statistics when !quiet_flag.
        (ggc_collect): Dump later to not interfere with release_page dump.
        (ggc_trim): New function.
        * ggc-none.c (ggc_trim): New.
        * ggc.h (ggc_trim): Declare.

2019-10-11  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/92066
        PR tree-optimization/92046
        * tree-vect-data-refs.c (vect_enhance_data_refs_alignment):
        Fix bogus cost model check.

2019-10-11  Tobias Burnus  <tobias@codesourcery.com>

        * langhooks-def.h (LANG_HOOKS_OMP_IS_ALLOCATABLE_OR_PTR): Define.
        (LANG_HOOKS_DECLS): Add it.
        * langhooks.h (lang_hooks_for_decls): Add omp_is_allocatable_or_ptr;
        update comment for omp_is_optional_argument.
        * omp-general.c (omp_is_allocatable_or_ptr): New.
        * omp-general.h (omp_is_allocatable_or_ptr): Declare.
        * omp-low.c (scan_sharing_clauses, lower_omp_target): Handle
        Fortran's optional arguments and allocatable/pointer scalars
        with use_device_addr.

2019-10-11  Ilya Leoshkevich  <iii@linux.ibm.com>

        PR target/77918
        * config/s390/2827.md: Add new opcodes.
        * config/s390/2964.md: Likewise.
        * config/s390/3906.md: Likewise.
        * config/s390/8561.md: Likewise.
        * config/s390/s390-builtins.def (s390_vfchesb): Use
        the new vec_cmpgev4sf_quiet_nocc.
        (s390_vfchedb): Use the new vec_cmpgev2df_quiet_nocc.
        (s390_vfchsb): Use the new vec_cmpgtv4sf_quiet_nocc.
        (s390_vfchdb): Use the new vec_cmpgtv2df_quiet_nocc.
        (vec_cmplev4sf): Use the new vec_cmplev4sf_quiet_nocc.
        (vec_cmplev2df): Use the new vec_cmplev2df_quiet_nocc.
        (vec_cmpltv4sf): Use the new vec_cmpltv4sf_quiet_nocc.
        (vec_cmpltv2df): Use the new vec_cmpltv2df_quiet_nocc.
        * config/s390/s390-modes.def (CCSFPS): New mode.
        * config/s390/s390.c (s390_match_ccmode_set): Support CCSFPS.
        (s390_select_ccmode): Return CCSFPS for LT, LE, GT, GE and LTGT.
        (s390_branch_condition_mask): Reuse CCS for CCSFPS.
        (s390_expand_vec_compare): Use non-signaling patterns where
        necessary.
        (s390_reverse_condition): Support CCSFPS.
        * config/s390/s390.md (*cmp<mode>_ccsfps): New pattern.
        * config/s390/vector.md: (VFCMP_HW_OP): Remove.
        (asm_fcmp_op): Likewise.
        (*smaxv2df3_vx): Use pattern for quiet comparison.
        (*sminv2df3_vx): Likewise.
        (*vec_cmp<VFCMP_HW_OP:code><mode>_nocc): Remove.
        (*vec_cmpeq<mode>_quiet_nocc): New pattern.
        (vec_cmpgt<mode>_quiet_nocc): Likewise.
        (vec_cmplt<mode>_quiet_nocc): New expander.
        (vec_cmpge<mode>_quiet_nocc): New pattern.
        (vec_cmple<mode>_quiet_nocc): New expander.
        (*vec_cmpeq<mode>_signaling_nocc): New pattern.
        (*vec_cmpgt<mode>_signaling_nocc): Likewise.
        (*vec_cmpgt<mode>_signaling_finite_nocc): Likewise.
        (*vec_cmpge<mode>_signaling_nocc): Likewise.
        (*vec_cmpge<mode>_signaling_finite_nocc): Likewise.
        (vec_cmpungt<mode>): New expander.
        (vec_cmpunge<mode>): Likewise.
        (vec_cmpuneq<mode>): Use quiet patterns.
        (vec_cmpltgt<mode>): Allow only on z14+.
        (vec_cmpordered<mode>): Use quiet patterns.
        (vec_cmpunordered<mode>): Likewise.
        (VEC_CMP_EXPAND): Add ungt and unge.

2019-10-11  Jan Hubicka  <hubicka@ucw.cz>

        * gimple-streamer-out.c (output_gimple_stmt): Add explicit function
        parameter.
        * lto-streamer-out.c: Include tree-dfa.h.
        (output_cfg): Do not use cfun.
        (lto_prepare_function_for_streaming): New.
        (output_function): Do not push cfun; do not initialize loop optimizer.
        * lto-streamer.h (lto_prepare_function_for_streaming): Declare.
        * passes.c (ipa_write_summaries): Use it.
        (ipa_write_optimization_summaries): Do not modify bodies.
        * tree-dfa.c (renumber_gimple_stmt_uids): Add function parameter.
        * tree.dfa.h (renumber_gimple_stmt_uids): Update prototype.
        * tree-ssa-dse.c (pass_dse::execute): Update use of
        renumber_gimple_stmt_uids.
        * tree-ssa-math-opts.c (pass_optimize_widening_mul::execute): Likewise.

2019-10-11  Kewen Lin  <linkw@gcc.gnu.org>

        * config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost): Lower
        vec_promote_demote cost to 1 for non-Power7 VSX architectures.

2019-10-10  Joseph Myers  <joseph@codesourcery.com>

        * ginclude/float.h [!__DEC32_MANT_DIG__]: Do not define DFP
        macros.
        [__STDC_WANT_IEC_60559_DFP_EXT__ || __STDC_VERSION__ > 201710L]:
        Also define DFP macros for these conditions.
        [!__STDC_WANT_DEC_FP__] (DEC32_SUBNORMAL_MIN, DEC64_SUBNORMAL_MIN,
        DEC128_SUBNORMAL_MIN): Do not define.
        [__STDC_WANT_IEC_60559_DFP_EXT__ || __STDC_VERSION__ > 201710L]
        (DEC32_TRUE_MIN, DEC64_TRUE_MIN, DEC128_TRUE_MIN): New macros.

2019-10-10  Xiong Hu Luo  <luoxhu@linux.ibm.com>
            Sandra Loosemore  <sandra@codesourcery.com>

        PR middle-end/26241
        * doc/lto.texi (IPA): Reference to the IPA passes.
        * doc/passes.texi (Pass manager): Add node IPA passes and
          description for each IPA pass.

2019-10-10  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-reference.c: Do not include splay-tree.h
        (reference_vars_to_consider): Turn to hash map.
        (get_static_name, ipa_init, analyze_function, propagate,
        stream_out_bitmap, ipa_reference_write_optimization_summary,
        ipa_reference_write_optimization_summary): Update.

2019-10-10  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-reference.c (propagate): Fix releasing of IPA summaries.

2019-10-10  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.c: Lookup Objective C metadata and force indirection
        for IVAR refs.

2019-10-10  Michael Meissner  <meissner@linux.ibm.com>

        * config/rs6000/rs6000.c (quad_address_p): Add check for prefixed
        addresses.
        (mem_operand_gpr): Add check for prefixed addresses.
        (mem_operand_ds_form): Add check for prefixed addresses.
        (rs6000_legitimate_offset_address_p): If we support prefixed
        addresses, check for a 34-bit offset instead of 16-bit.
        (rs6000_legitimate_address_p): Add check for prefixed addresses.
        Do not allow load/store with update if the address is prefixed.
        (rs6000_mode_dependent_address):  If we support prefixed
        addresses, check for a 34-bit offset instead of 16-bit.

2019-10-10  Ilya Leoshkevich  <iii@linux.ibm.com>

        PR target/77918
        * config/s390/vector.md (vcond_comparison_operator): New
        predicate.
        (vcond<V_HW:mode><V_HW2:mode>): Use vcond_comparison_operator.

2019-10-10  David Malcolm  <dmalcolm@redhat.com>

        PR 87488
        * Makefile.in (CFLAGS-opts.o): Pass in DOCUMENTATION_ROOT_URL via
        -D.
        * configure.ac (--with-documentation-root-url): New option.
        * configure: Regenerate.
        * diagnostic-format-json.cc (json_end_diagnostic): If there is an
        option URL, add it as a new string field of the diagnostic option.
        * diagnostic.c (diagnostic_initialize): Initialize get_option_url.
        (print_option_information): If get_option_url is non-NULL, call
        it, and if the result is non-NULL, potentially emit an escape
        sequence to markup the option text with the resulting URL.
        * diagnostic.h (diagnostic_context::get_option_url): New callback.
        * doc/invoke.texi (-fdiagnostics-format=): Add "option_url" to
        example of JSON output.
        * opts-diagnostic.h (get_option_url): New decl.
        * opts.c (get_option_url): New function.
        * toplev.c (general_init): Initialize the get_option_url callback.

2019-10-10  David Malcolm  <dmalcolm@redhat.com>

        PR 87488
        * common.opt (fdiagnostics-urls=): New option.
        (diagnostic-url.h): Add SourceInclude.
        (diagnostic_url_rule): New enum.
        * diagnostic-color.c: Include "diagnostic-url.h".
        (diagnostic_urls_enabled_p): New function.
        * diagnostic-url.h: New file.
        * diagnostic.c: Include "diagnostic-url.h".
        (diagnostic_urls_init): New function.
        * diagnostic.h (diagnostic_urls_init): New decl.
        * doc/invoke.texi (Diagnostic Message Formatting Options): Add
        -fdiagnostics-urls to the list.
        (-fdiagnostics-urls): New option.
        * gcc.c (driver_handle_option): Handle OPT_fdiagnostics_urls_.
        (driver::global_initializations): Call diagnostic_urls_init.
        * opts-global.c (init_options_once): Likewise.
        * opts.c (common_handle_option): Handle OPT_fdiagnostics_urls_.
        * pretty-print.c (pretty_printer::pretty_printer): Initialize
        show_urls.
        (pp_begin_url): New function.
        (pp_end_url): New function.
        (selftest::test_urls): New selftest.
        (selftest::pretty_print_c_tests): Call it.
        * pretty-print.h (pretty_printer::show_urls): New field.
        (pp_begin_url): New decl.
        (pp_end_url): New decl.

2019-10-10  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/92022
        * config/alpha/alpha.c (alpha_handle_trap_shadows): Skip DEBUG_INSN.

2019-10-10  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/88630
        * config/sh/sh.h (TARGET_FPU_SH4_300): New macro.
        * config/sh/sh.c (sh_option_override): Enable fsca and fsrra insns
        also for TARGET_FPU_SH4_300.
        (sh_emit_mode_set): Check for TARGET_FPU_SH4_300 instead of
        TARGET_SH4_300.
        * config/sh/sh.md (toggle_pr): Add TARGET_FPU_SH4_300 condition.
        (negsf2): Expand to either negsf2_fpscr or negsf2_no_fpscr.
        (*negsf2_i): Split into ...
        (negsf2_fpscr, negsf2_no_fpscr): ... these new patterns.
        (abssf2): Expand to either abssf2_fpsc or abssf2_no_fpsc.
        (**abssf2_i): Split into ...
        (abssf2_fpscr, abssf2_no_fpscr): ... these new patterns.
        (negdf2): Expand to either negdf2_fpscr or negdf2_no_fpscr.
        (*negdf2_i): Split into ...
        (negdf2_fpscr, negdf2_no_fpscr): ... these new patterns.
        (absdf2): Expand to either absdf2_fpscr or absdf2_no_fpsc.
        (**abssf2_i): Split into ...
        (absdf2_fpscr, absdf2_no_fpscr): ... these new patterns.

2019-10-10  Richard Biener  <rguenther@suse.de>

        PR middle-end/92046
        * opts.c (finish_options): Do not influence global --params
        from options that are adjustable per function.
        * tree-vect-data-refs.c (vect_enhance_data_refs_alignment):
        Apply --param adjustment based on active cost-model.
        * tree-ssa-phiopt.c (cond_if_else_store_replacement): Disable
        further store-sinking when vectorization or if-conversion
        are not enabled.

2019-10-10  Jan Hubicka  <hubicka@ucw.cz>

        PR middle-end/92037
        * cgraph.c (symbol_table_test::symbol_table_test): Use ggc_alloc
        rather than ggc_alloc_cleared to alloc symbol table.
        * toplev.c (general_init): Likewise.
        * cgraph.h (symbol_table): Explicitly construct every field.

2019-10-10  Andreas Krebbel  <krebbel@linux.ibm.com>

        * common/config/s390/s390-common.c (PF_ARCH13): Rename to...
        (PF_Z15): ... this.
        * config.gcc: Add z15 as option for --with-arch and --with-tune
        configure switches.
        * config/s390/s390-c.c (s390_resolve_overloaded_builtin): Add
        error reporting for unsupported builtins.
        * config/s390/s390-opts.h (enum processor_type): Rename
        PROCESSOR_8561_ARCH13 to PROCESSOR_8561_Z15.
        * config/s390/8561.md: Rename arch13 to z15 throughout the file.
        * config/s390/driver-native.c (s390_host_detect_local_cpu):
        Likewise.
        * config/s390/s390-builtins.def: Likewise.
        * config/s390/s390.c (processor_table): Add z15 as option and keep arch13 as alternative.
        (s390_expand_builtin): Add missing check for unsupported builtins.
        (s390_canonicalize_comparison): Rename TARGET_ARCH13 to TARGET_Z15.
        (s390_rtx_costs): Likewise.
        (s390_get_sched_attrmask): Rename arch13 to z15.
        (s390_get_unit_mask): Likewise.
        (s390_is_fpd): Likewise.
        (s390_is_fxd): Likewise.
        * config/s390/s390.h (enum processor_flags): Likewise.
        * config/s390/s390.md: Likewise.
        * config/s390/vector.md: Likewise.
        * config/s390/vx-builtins.md: Likewise.
        * config/s390/s390.opt: Add z15 to processor_type value.

2019-10-10  Andreas Krebbel  <krebbel@linux.ibm.com>

        PR target/91035
        * config/s390/s390-protos.h (s390_output_split_stack_data): Add
        prototype.
        * config/s390/s390.md (UNSPECV_SPLIT_STACK_DATA): Remove.
        ("split_stack_data", "split_stack_call")
        ("split_stack_call_<mode>", "split_stack_cond_call")
        ("split_stack_cond_call_<mode>"): Remove.
        ("@split_stack_call<mode>", "@split_stack_cond_call<mode>"): New
        insn definition.
        * config/s390/s390.c (s390_output_split_stack_data): New function.
        (s390_expand_split_stack_prologue): Use the merged expander.

2019-10-09  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/90879
        * builtins.c (check_access): Avoid using maxbound when null.
        * calls.c (maybe_warn_nonstring_arg): Adjust to get_range_strlen change.
        * doc/invoke.texi (-Wstring-compare): Document new warning option.
        * gimple-fold.c (get_range_strlen_tree): Make setting maxbound
        conditional.
        (get_range_strlen): Overwrite initial maxbound when non-null.
        * gimple-ssa-sprintf.c (get_string_length): Adjust to get_range_strlen
        changes.
        * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Same.
        (used_only_for_zero_equality): New function.
        (handle_builtin_memcmp): Call it.
        (determine_min_objsize): Return an integer instead of tree.
        (get_len_or_size, strxcmp_eqz_result): New functions.
        (maybe_warn_pointless_strcmp): New function.
        (handle_builtin_string_cmp): Call it.  Fold zero-equality of strcmp
        between a longer string and a smaller array.
        (get_range_strlen_dynamic): Overwrite initial maxbound when non-null.

2019-10-09  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.c (darwin_override_options): Make the check for
        Objective-C ABI version more specific for 64bit code.

2019-10-09  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.c (machopic_indirect_data_reference): Set flag to
        indicate that the new symbol is an indirection.
        (machopic_indirect_call_target): Likewise.
        * config/darwin.h (MACHO_SYMBOL_FLAG_INDIRECTION): New.
        (MACHO_SYMBOL_INDIRECTION_P): New.
        (MACHO_SYMBOL_FLAG_STATIC): Adjust bit number.

2019-10-08  Jason Merrill  <jason@redhat.com>

        * doc/invoke.texi: Document -fconcepts-ts.

2019-10-09  Richard Biener  <rguenther@suse.de>

        * tree-vect-loop.c (vect_is_simple_reduction): Simplify and
        allow stmts other than GIMPLE_ASSIGN in nested cycles.

2019-10-08  Richard Biener  <rguenther@suse.de>

        * tree-vectorizer.h (_stmt_vec_info::reduc_vectype_in): New.
        (_stmt_vec_info::force_single_cycle): Likewise.
        (STMT_VINFO_FORCE_SINGLE_CYCLE): New.
        (STMT_VINFO_REDUC_VECTYPE_IN): Likewise.
        * tree-vect-loop.c (vectorizable_reduction): Set
        STMT_VINFO_REDUC_VECTYPE_IN and STMT_VINFO_FORCE_SINGLE_CYCLE.
        (vect_transform_reduction): Use them to remove redundant code.
        (vect_transform_cycle_phi): Likewise.

2019-10-08  Dmitrij Pochepko <dmitrij.pochepko@bell-sw.com>

        PR tree-optimization/90836
        * gcc/match.pd (popcount): New pattern.

2019-10-08  Martin Sebor  <msebor@redhat.com>

        PR middle-end/92026
        PR middle-end/92014
        * tree-ssa-strlen.c (count_nonzero_bytes): Avoid recursing for MEM_REF
        again once nbytes has been set.  Set the access size when not yet set.

2019-10-08  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.c (machopic_select_section): Remove dead code for
        old Objective-C section selection method, replace with unreachable.

2019-10-08  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.c (machopic_indirect_data_reference): Check for
        required indirections before making direct access to defined
        values.
        (machopic_output_indirection): Place the indirected pointes for
        required indirections into the non-lazy symbol pointers section.
        (darwin_encode_section_info):
        * config/darwin.h (MACHO_SYMBOL_FLAG_MUST_INDIRECT): New.
        (MACHO_SYMBOL_MUST_INDIRECT_P): New.

2019-10-08  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/91994
        * config/i386/i386.c (x86_avx_u128_mode_needed): Use SSE_REG
        instead of ALL_SSE_REG to check if function call preserves some
        256-bit SSE registers.

2019-10-08  Tulio Magno Quites Machado Filho  <tuliom@linux.ibm.com>

        * config.gcc: Move -L usage from LINK_OS_EXTRA_SPEC32 and
        LINK_OS_EXTRA_SPEC64 to MD_STARTFILE_PREFIX and
        MD_STARTFILE_PREFIX_1 when using --with-advance-toolchain.

2019-10-08  Richard Biener  <rguenther@suse.de>

        * tree-vectorizer.h (_stmt_vec_info::v_reduc_type): Remove.
        (_stmt_vec_info::is_reduc_info): Add.
        (STMT_VINFO_VEC_REDUCTION_TYPE): Remove.
        (vectorizable_condition): Remove.
        (vectorizable_shift): Likewise.
        (vectorizable_reduction): Adjust.
        (info_for_reduction): New.
        * tree-vect-loop.c (vect_force_simple_reduction): Fold into...
        (vect_analyze_scalar_cycles_1): ... here.
        (vect_analyze_loop_operations): Adjust.
        (needs_fold_left_reduction_p): Simplify for single caller.
        (vect_is_simple_reduction): Likewise.  Remove stmt restriction
        for nested cycles not part of double reductions.
        (vect_model_reduction_cost): Pass in the reduction type.
        (info_for_reduction): New function.
        (vect_create_epilog_for_reduction): Use it, access reduction
        meta off the stmt info it returns.  Use STMT_VINFO_REDUC_TYPE
        instead of STMT_VINFO_VEC_REDUCTION_TYPE.
        (vectorize_fold_left_reduction): Remove pointless assert.
        (vectorizable_reduction): Analyze the full reduction when
        visiting the outermost PHI.  Simplify.  Use STMT_VINFO_REDUC_TYPE
        instead of STMT_VINFO_VEC_REDUCTION_TYPE.  Direct reduction
        stmt code-generation to vectorizable_* in most cases.  Verify
        code-generation only for cases handled by
        vect_transform_reductuon.
        (vect_transform_reduction): Use info_for_reduction to get at
        reduction meta.  Simplify.
        (vect_transform_cycle_phi): Likewise.
        (vectorizable_live_operation): Likewise.
        * tree-vect-patterns.c (vect_reassociating_reduction_p): Look
        at the PHI node for STMT_VINFO_REDUC_TYPE.
        * tree-vect-slp.c (vect_schedule_slp_instance): Remove no
        longer necessary code.
        * tree-vect-stmts.c (vectorizable_shift): Make static again.
        (vectorizable_condition): Likewise.  Get at reduction related
        info via info_for_reduction.
        (vect_analyze_stmt): Adjust.
        (vect_transform_stmt): Likewise.
        * tree-vectorizer.c (vec_info::new_stmt_vec_info): Initialize
        STMT_VINFO_REDUC_TYPE instead of STMT_VINFO_VEC_REDUCTION_TYPE.

2019-10-08  Joseph Myers  <joseph@codesourcery.com>

        * doc/invoke.texi (-ffp-int-builtin-inexact): Document
        -fno-fp-int-builtin-inexact default for C2X.

2019-10-07  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
            Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91532
        * tree-if-conv.c: Include tree-ssa-dse.h.
        (ifcvt_local_dce): Change param from bb to loop,
        and call dse_classify_store.
        (tree_if_conversion): Pass loop instead of loop->header as arg
        to ifcvt_local_dce.
        * tree-ssa-dse.c: Include tree-ssa-dse.h.
        (delete_dead_or_redundant_assignment): Remove static qualifier from
        declaration, and add prototype in tree-ssa-dse.h.
        (dse_store_status): Move to tree-ssa-dse.h.
        (dse_classify_store): Remove static qualifier and add new tree param
        stop_at_vuse, and add prototype in tree-ssa-dse.h.
        * tree-ssa-dse.h: New header.

2019-10-07  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.c (machopic_output_indirection): Don't put
        hidden symbol indirections into the .data section, use the
        non-lazy symbol pointers section as normal.
        (darwin_encode_section_info): Record if a symbol is hidden.
        * config/darwin.h (MACHO_SYMBOL_FLAG_HIDDEN_VIS): New.
        (MACHO_SYMBOL_HIDDEN_VIS_P): New.

2019-10-07  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.c (machopic_symbol_defined_p): Use symbol flag
        predicates instead of accessing bits directly.
        (machopic_indirect_call_target): Likewise.
        (machopic_output_indirection): Likewise.
        (darwin_encode_section_info): Improve description.  Use renamed
        symbol flags.  Use predicate macros for variables and functions.
        * config/darwin.h:
        Rename MACHO_SYMBOL_VARIABLE to MACHO_SYMBOL_FLAG_VARIABLE.
        Rename MACHO_SYMBOL_DEFINED to MACHO_SYMBOL_FLAG_DEFINED.
        Rename MACHO_SYMBOL_STATIC to MACHO_SYMBOL_FLAG_STATIC.
        (MACHO_SYMBOL_VARIABLE_P): New.
        (MACHO_SYMBOL_DEFINED_P):New.
        (MACHO_SYMBOL_STATIC_P): New.
        * config/i386/darwin.h (MACHO_SYMBOL_FLAG_VARIABLE): Delete.
        (SYMBOL_FLAG_SUBT_DEP): New.
        * config/rs6000/darwin.h (SYMBOL_FLAG_SUBT_DEP): New.

2019-10-07  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        * config/msp430/msp430.c (msp430_file_end): s/msp_/msp430_/
        (msp430_expand_epilogue): Likewise.
        * config/msp430/predicates.md: Likewise.
        * config/msp430/msp430.md: Likewise.
        Replace blocks of 8 spaces with tabs.

2019-10-07  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        * config/msp430/msp430-protos.h (msp430_split_addsi): New prototype.
        * config/msp430/msp430.c (msp430_split_addsi): New.
        * config/msp430/msp430.md: Call msp430_split_addsi () instead of using
        a block of C code for splitting addsi.

2019-10-07  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386-expand.c (ix86_expand_floorceildf_32,
        ix86_expand_rounddf_32): Reorder functions.
        * config/i386/i386-protos.h: Update.

2019-10-07  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        * config.in: Regenerate.
        * config/msp430/constraints.md: Fix docstring for "Ys" constraint.
        Add new "Yx" constraint.
        * config/msp430/driver-msp430.c (msp430_propagate_region_opt): New spec
        function.
        * config/msp430/msp430-protos.h (msp430_op_not_in_high_mem): New
        prototype.
        * config/msp430/msp430.c (msp430_option_override): Allow the lower
        code/data region to be selected in the small memory model.
        (msp430_section_attr): Don't warn if the "section" and "lower"
        attributes are used together.
        (msp430_handle_generic_attribute): Likewise.
        (msp430_var_in_low_mem): New function.
        (TARGET_ENCODE_SECTION_INFO): Define.
        (msp430_encode_section_info): New function.
        (gen_prefix): Return early in the small memory model.
        Require TARGET_USE_LOWER_REGION_PREFIX to be set before adding the
        ".lower" prefix if -m{code,data}-region=lower have been passed.
        (msp430_output_aligned_decl_common): Emit common symbols when
        -mdata-region=lower is passed unless TARGET_USE_LOWER_REGION_PREFIX is
        set.
        (TARGET_ASM_FILE_END): Define.
        (msp430_file_end): New function.
        (msp430_do_not_relax_short_jumps): Allow relaxation when
        function will be in the lower region.
        (msp430_op_not_in_high_mem): New function.
        (msp430_print_operand): Check "msp430_op_not_in_high_mem" for
        the 'X' operand selector.
        Clarify comment for 'x' operand selector.
        * config/msp430/msp430.h (LINK_SPEC): Propagate
        -m{code,data}-region to the linker via spec function
        msp430_propagate_region_opt.
        (msp430_propagate_region_opt): New prototype.
        (EXTRA_SPEC_FUNCTIONS): Add msp430_propagate_region_opt.
        (SYMBOL_FLAG_LOW_MEM): Define.
        * config/msp430/msp430.md (addsipsi3): Add missing "%X" operand
        selector.
        (zero_extendqihi2): Fix operand number used by "%X" selector.
        (zero_extendqisi2): Likewise.
        (zero_extendhisi2): Likewise.
        (movqi): Use "Yx" constraint in place of "%X" operand selector.
        (movhi): Likewise.
        (addqi3): Likewise.
        (addhi3): Likewise.
        (addsi3): Likewise.
        (addhi3_cy): Likewise.
        (addchi4_cy): Likewise.
        (subqi3): Likewise.
        (subhi3): Likewise.
        (subsi3): Likewise.
        (bic<mode>3): Likewise.
        (and<mode>3): Likewise.
        (ior<mode>3): Likewise.
        (xor<mode>3): Likewise.
        (slli_1): Add missing "%X" operand selector.
        (slll_1): Likewise.
        (slll_2): Likewise.
        (srai_1): Likewise.
        (sral_1): Likewise.
        (sral_2): Likewise.
        (srli_1): Likewise.
        (srll_1): Likewise.
        (cbranchqi4_real): Use "Yx" constraint in place of "%X" operand
        selector.
        (cbranchhi4_real): Likewise.
        (cbranchqi4_reversed): Likewise.
        (cbranchhi4_reversed): Likewise.
        (*bitbranch<mode>4): Likewise.
        (*bitbranch<mode>4_z): Remove unnecessary "%x" operand selector.
        * config/msp430/msp430.opt (mcode-region=): Set default to
        MSP430_REGION_LOWER. Improve docstring.
        (mdata-region=): Likewise.
        (muse-lower-region-prefix): New option.
        * config/msp430/t-msp430 (MULTILIB_OPTIONS): Add
        mdata-region=none multilib.
        (MULTILIB_MATCHES): Set mdata-region={upper,either} to match
        mdata-region=none multilib.
        MULTILIB_EXCEPTIONS: Remove.
        MULTILIB_REQUIRED: Define.
        * configure: Regenerate.
        * configure.ac: Define HAVE_AS_GNU_ATTRIBUTE and
        HAVE_AS_MSPABI_ATTRIBUTE if GAS version >= 2.33.50.
        * doc/extend.texi: Clarify comment for {upper,lower,either}
        function attributes.
        Add separate description for "lower" variable attribute.

2019-10-07  Ilya Leoshkevich  <iii@linux.ibm.com>

        PR target/77918
        * optabs-tree.c (vcond_icode_p): New function.
        (vcond_eq_icode_p): Likewise.
        (expand_vec_cond_expr_p): Use vcond_icode_p and
        vcond_eq_icode_p.
        * optabs.c (can_vcond_compare_p): New function.
        * optabs.h (can_vcond_compare_p): Likewise.

2019-10-07  Ilya Leoshkevich  <iii@linux.ibm.com>

        PR target/77918
        * gimple-expr.c (gimple_cond_get_ops_from_tree): Assert that the
        caller passes a non-trapping condition.
        (is_gimple_condexpr): Allow trapping conditions.
        (is_gimple_condexpr_1): New helper function.
        (is_gimple_condexpr_for_cond): New function, acts like old
        is_gimple_condexpr.
        * gimple-expr.h (is_gimple_condexpr_for_cond): New function.
        * gimple.c (gimple_could_trap_p_1): Handle COND_EXPR and
        VEC_COND_EXPR. Fix an issue with statements like i = (fp < 1.).
        * gimplify.c (gimplify_cond_expr): Use
        is_gimple_condexpr_for_cond.
        (gimplify_expr): Allow is_gimple_condexpr_for_cond.
        * tree-eh.c (operation_could_trap_p): Assert on COND_EXPR and
        VEC_COND_EXPR.
        (tree_could_trap_p): Handle COND_EXPR and VEC_COND_EXPR.
        * tree-ssa-forwprop.c (forward_propagate_into_gimple_cond): Use
        is_gimple_condexpr_for_cond, remove pointless tmp check
        (forward_propagate_into_cond): Remove pointless tmp check.

2019-10-07 Vladislav Ivanishin  <vlad@ispras.ru>

        * gimple-iterator.h (gsi_next_nonvirtual_phi): Change the semantics to
        match that of other gsi_next_* functions.  Adjust the comment.
        (gsi_start_nonvirtual_phis): New function.
        * ipa-icf.c (sem_function::compare_phi_node): Update uses of
        gsi_next_nonvirtual_phi accordingly.  (No functional change.)

2019-10-07 Vladislav Ivanishin  <vlad@ispras.ru>

        * doc/invoke.texi (-Wuninitialized): Don't mention the clobbered by
        setjmp situation here.  Fix a verb's ending: "the exact variables or
        elements for which there are warnings depends" -> "... depend".

2019-10-07  Aldy Hernandez  <aldyh@redhat.com>

        * ipa-prop.c (ipa_vr::nonzero_p): Add TYPE_UNSIGNED check.

2019-10-07  Aldy Hernandez  <aldyh@redhat.com>

        * ipa-prop.c (ipa_vr::nonzero_p): New.
        (ipcp_update_vr): Use nonzero_p instead of open-coding check for
        non-zero range.
        * ipa-prop.h (class ipa_vr): Add nonzero_p.
        * tree-vrp.c (range_has_numeric_bounds_p): New.
        (range_int_cst_p): Use range_has_numeric_bounds_p.
        (get_range_op_handler): New.
        (supported_types_p): New.
        (defined_ranges_p): New.
        (drop_undefines_to_varying): New.
        (range_fold_binary_symbolics_p): New.
        (range_fold_unary_symbolics_p): New.
        (range_fold_unary_expr): Extract out into above functions.
        (range_fold_binary_expr): Same.
        (value_range_base::normalize_addresses): New.
        (value_range_base::normalize_symbolics): Normalize addresses.
        * tree-vrp.h (class value_range_base): Add normalize_addresses.

2019-10-07  Aldy Hernandez  <aldyh@redhat.com>

        * tree-vrp.c (value_range_base::singleton_p): Use
        value_range_base::num_pairs instead of vrp_val_is* to check
        if a range has one sub-range.

2019-10-07  Richard Sandiford  <richard.sandiford@arm.com>

        * ira-lives.c (check_and_make_def_conflict): Handle cases in which
        DEF is not a true earlyclobber but is tied to a specific input
        operand, and so is effectively earlyclobber wrt inputs that have
        different values.
        (make_early_clobber_and_input_conflicts): Pass this case to the above.

2019-10-07  Richard Sandiford  <richard.sandiford@arm.com>

        * machmode.h (opt_mode): Mark constructors with CONSTEXPR.
        (pod_mode): Mark operators likewise.
        (scalar_int_mode): Mark non-default constructors and
        operators with CONSTEXPR.
        (scalar_float_mode, scalar_mode, complex_mode): Likewise.
        (fixed_size_mode): Likewise.

2019-10-07  Richard Sandiford  <richard.sandiford@arm.com>

        PR target/91994
        * config/i386/sse.md (avx_vzeroupper): Turn into a define_expand
        and wrap the unspec_volatile in a parallel.
        (*avx_vzeroupper): New define_insn.  Use a match_parallel around
        the unspec_volatile.
        * config/i386/predicates.md (vzeroupper_pattern): Expect the
        unspec_volatile to be wrapped in a parallel.
        * config/i386/i386-features.c (ix86_add_reg_usage_to_vzeroupper)
        (ix86_add_reg_usage_to_vzerouppers): New functions.
        (rest_of_handle_insert_vzeroupper): Use them to add register
        usage information to the vzeroupper instructions.

2019-10-07  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91975
        * tree-ssa-loop-ivcanon.c (constant_after_peeling): Consistently
        handle invariants.

2019-10-06  Richard Sandiford  <richard.sandiford@arm.com>

        * var-tracking.c (dataflow_set_clear_at_call): Hoist temporary
        function result outside of EXECUTE_IF_SET_IN_HARD_REG_SET.

2019-10-06  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.c (darwin_override_options): Adjust objective-c
        ABI version error messages to avoid punctuation and contracted
        negations.

2019-10-05  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-inline.c: Fix type; compute size rather than self_size
        for size of caller function.

2019-10-05  Iain Sandoe  <iain@sandoe.co.uk>

        PR target/59888
        * config/darwin.c (darwin_rodata_section): Add relocation flag,
        choose const_data section for constants with relocations.
        (machopic_select_section): Pass relocation flag to
        darwin_rodata_section ().

2019-10-05  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/91734
        * generic-match-head.c: Include fold-const-call.h.
        * match.pd (sqrt(x) cmp c): Check the boundary value and
        in case inexact computation of c*c affects comparison of the boundary,
        turn LT_EXPR into LE_EXPR, GE_EXPR into GT_EXPR, LE_EXPR into LT_EXPR
        or GT_EXPR into GE_EXPR.  Punt for sqrt comparisons against NaN and
        for -frounding-math.  For c2, try the next smaller or larger floating
        point constant depending on comparison code and if it has the same
        sqrt as c2, use it instead of c2.

2019-10-04  Martin Sebor  <msebor@redhat.com>

        PR middle-end/91977
        * tree-ssa-strlen.c (count_nonzero_bytes): Handle assignments with
        MEM_REF right operand.  Avoid failing for MEM_REF assignments from
        uninitialized objects.

2019-10-04  Martin Sebor  <msebor@redhat.com>

        * builtins.c (compute_objsize): Add an argument.
        * tree-object-size.c (addr_object_size): Same.
        (compute_builtin_object_size): Same.
        * tree-object-size.h (compute_builtin_object): Same.

2019-10-04  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-inline.c (inline_insns_single, inline_insns_auto): Fix typo.

2019-10-04  Rafael Tsuha  <rafael.tsuha@usp.br>

        * match.pd (sinh (x) / cosh (x)): New simplification rule.

2019-10-04  Martin Jambor  <mjambor@suse.cz>

        * tree-ssa-forwprop.c (simplify_builtin_call): Set gimple call
        fntype when switching to calling memcpy instead of memset.

2019-10-04  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * hash-table.h (hash_table::empty_slow): Don't assign
        size_t values to int variables.

2019-10-04  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * expr.c (convert_mode_scalar): Remove shadowing local var.
        (emit_block_move): Rename local vars.
        (block_move_libcall_safe_for_call_parm): Remove shadowing local var.
        (emit_push_insn): Rename local vars.
        (expand_assignment): Fix wrong mode in assign_stack_temp.  Remove
        shadowing local vars.
        (store_constructor): Remove shadowing local vars.  Rename local var.
        (store_field, expand_cond_expr_using_cmove,
        expand_expr_real_2): Remove shadowing local vars.
        (expand_expr_real_1,
        do_store_flag): Remove shadowing local vars.  Rename local vars.

2019-10-04  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * cgraph.h (FOR_EACH_ALIAS): Avoid shadowing the loop variable.

2019-10-04  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * genmatch.c (commutate): Rename local var.
        (lower_cond): Reuse local var.
        (dt_node::gen, dt_node::gen_kids, dt_node::gen_kids_1,
        dt_operand::gen, dt_operand::gen_gimple_expr,
        dt_simplify::gen): Add a param.  Rename generated vars.
        (decision_tree::insert_operand,
        (capture_info::walk_match, capture_info::walk_result,
        capture_info::walk_c_expr): Rename local vars.
        (expr::gen_transform): Rename generated vars.
        Use snprintf.  Rename local vars.
        (capture::gen_transform, dt_operand::get_name,
        dt_operand::gen_opname): Rename generated vars.
        (write_predicate): Adjust call to gen_kids.
        (parser::get_internal_capture_id): Rename generated vars.
        (parser::parse_expr): Rename local vars.
        (parser::parse_if): Remove local var.
        (parser::parse_pattern, add_operator): Rename local vars.

2019-10-04  Joseph Myers  <joseph@codesourcery.com>

        * builtins.def (DEF_C2X_BUILTIN): New macro.
        (exp10, exp10f, exp10l, fabsd32, fabsd64, fabsd128, nand32)
        (nand64, nand128, roundeven, roundevenf, roundevenl, strdup)
        (strndup): Use DEF_C2X_BUILTIN.
        * coretypes.h (enum function_class): Add function_c2x_misc.

2019-10-04  Maya Rashish  <coypu@sdf.org>

        * ira-color.c (update_costs_from_allocno): Call
        ira_init_register_move_cost_if_necessary.

2019-10-04  Jeff Law  <law@redhat.com>

        * config/h8300/h8300.md (cpymemsi): Disable.
        (movmd, movmd_internal_<mode>, movstr, movsd):
        (movstr, movsd, stpcpy_internal_<mode>: Likewise.
        (movmd splitter, movsd splitter): Likewise.

        * range-op.cc (range_tests): Avoid two tests when ints and
        shorts are the same size.

2019-10-04  Richard Biener  <rguenther@suse.de>

        PR lto/91968
        * tree.c (find_decls_types_r): Do not remove LABEL_DECLs from
        BLOCK_VARS.

2019-10-04  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91982
        * tree-vect-loop.c (vectorizable_live_operation): Also guard
        against EXTRACT_LAST_REDUCTION.
        * tree-vect-stmts.c (vect_transform_stmt): Likewise.

2019-10-04  Aldy Hernandez  <aldyh@redhat.com>

        * range-op.o (value_range_from_overflowed_bounds): Rename from
        adjust_overflow_bound.
        (value_range_with_overflow): Rename from
        create_range_with_overflow.
        (create_possibly_reversed_range): Adjusted for above renames.
        (operator_*::wi_fold): Same.
        (cross_product_operator::wi_cross_productor): Same.

2019-10-04  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * doc/invoke.texi (-Wshadow=global, -Wshadow=local,
        -Wshadow=compatible-local): Fix description.
        Add an example where -Wshadow=compatible-local does not
        warn.

2019-10-03  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/pa.h (MAX_PCREL17F_OFFSET): Adjust.

        * config/pa/pa.c (pa_output_call): Remove 64-bit sibcall sequence.
        (pa_attr_length_call): Adjust length for 64-bit plabel sequence.

2019-10-03  Aaron Sawdey <acsawdey@linux.ibm.com>

        * expr.c (emit_block_move_hints): Slightly cleaner fix to
        can_move_by_pieces issue.

2019-10-03  Iain Sandoe  <iain@sandoe.co.uk>

        PR target/87243
        * config/darwin-driver.c (maybe_get_sysroot_from_sdkroot): New.
        (darwin_driver_init): Use the sysroot provided by SDKROOT when that
        is available and the user has not set one on the command line.

2019-10-03  Dragan Mladjenovic  <dmladjenovic@wavecomp.com>

        PR target/91769
        * config/mips/mips.c (mips_split_move): Use reg_overlap_mentioned_p
        instead of REGNO equality check on addr.reg.

2019-10-03  Jan Hubicka  <hubicka@ucw.cz>

        * params.def (PARAM_INLINE_HEURISTICS_HINT_PERCENT,
        PARAM_INLINE_HEURISTICS_HINT_PERCENT_O2): New.
        * doc/invoke.texi (inline-heuristics-hint-percent,
        inline-heuristics-hint-percent-O2): Document.
        * tree-inline.c (inline_insns_single, inline_insns_auto): Add new
        hint attribute.
        (can_inline_edge_by_limits_p): Use it.

2019-10-03  Richard Sandiford  <richard.sandiford@arm.com>

        * config/arm/arm.c (arm_print_value): Use real_to_decimal
        to print CONST_DOUBLEs.

2019-10-03  Andrea Corallo  <andrea.corallo@arm.com>

        * ipa-cp.c (ipa_cp_c_finalize): Release ipcp_transformation_sum.
        * ipa-prop.c (ipcp_free_transformation_sum): New function.
        * ipa-prop.h (ipcp_free_transformation_sum): Add declaration.

2019-10-03  Aldy Hernandez  <aldyh@redhat.com>

        * Makefile.in (OBJS): Add range.o and range-op.o.
        Remove wide-int-range.o.
        * function-tests.c (test_ranges): New.
        (function_tests_c_tests): Call test_ranges.
        * ipa-cp.c (ipa_vr_operation_and_type_effects): Call
        range_fold_unary_expr instead of extract_range_from_unary_expr.
        * ipa-prop.c (ipa_compute_jump_functions_for_edge): Same.
        * range-op.cc: New file.
        * range-op.h: New file.
        * range.cc: New file.
        * range.h: New file.
        * selftest.h (range_tests): New prototype.
        * ssa.h: Include range.h.
        * tree-vrp.c (value_range_base::value_range_base): New
        constructors.
        (value_range_base::singleton_p): Do not call
        ranges_from_anti_range until sure we will need to.
        (value_range_base::type): Rename gcc_assert to
        gcc_checking_assert.
        (vrp_val_is_max): New argument.
        (vrp_val_is_min): Same.
        (wide_int_range_set_zero_nonzero_bits): Move from
        wide-int-range.cc.
        (extract_range_into_wide_ints): Remove.
        (extract_range_from_multiplicative_op): Remove.
        (extract_range_from_pointer_plus_expr): Abstract POINTER_PLUS code
        from extract_range_from_binary_expr.
        (extract_range_from_plus_minus_expr): Abstract PLUS/MINUS code
        from extract_range_from_binary_expr.
        (extract_range_from_binary_expr): Remove.
        (normalize_for_range_ops): New.
        (range_fold_binary_expr): New.
        (range_fold_unary_expr): New.
        (value_range_base::num_pairs): New.
        (value_range_base::lower_bound): New.
        (value_range_base::upper_bound): New.
        (value_range_base::upper_bound): New.
        (value_range_base::contains_p): New.
        (value_range_base::invert): New.
        (value_range_base::union_): New.
        (value_range_base::intersect): New.
        (range_compatible_p): New.
        (value_range_base::operator==): New.
        (determine_value_range_1): Call range_fold_*expr instead of
        extract_range_from_*expr.
        * tree-vrp.h (class value_range_base): Add new constructors.
        Add methods for union_, intersect, operator==, contains_p,
        num_pairs, lower_bound, upper_bound, invert.
        (vrp_val_is_min): Add handle_pointers argument.
        (vrp_val_is_max): Same.
        (extract_range_from_unary_expr): Remove.
        (extract_range_from_binary_expr): Remove.
        (range_fold_unary_expr): New.
        (range_fold_binary_expr): New.
        * vr-values.c (vr_values::extract_range_from_binary_expr): Call
        range_fold_binary_expr instead of extract_range_from_binary_expr.
        (vr_values::extract_range_basic): Same.
        (vr_values::extract_range_from_unary_expr): Call
        range_fold_unary_expr instead of extract_range_from_unary_expr.
        * wide-int-range.cc: Remove.
        * wide-int-range.h: Remove.

2019-10-02   Michael Meissner  <meissner@linux.ibm.com>

        * config/rs6000/rs6000.c (mem_operand_gpr): Use
        SIGNED_16BIT_OFFSET_EXTRA_P macro.
        (mem_operand_ds_form): Use SIGNED_16BIT_OFFSET_EXTRA_P macro.
        (rs6000_mode_dependent_address): Use SIGNED_16BIT_OFFSET_EXTRA_P
        macro.

2019-10-02  Joseph Myers  <joseph@codesourcery.com>

        * ginclude/stdint-gcc.h [__STDC_WANT_IEC_60559_BFP_EXT__]: Change
        condition on WIDTH macros to [__STDC_WANT_IEC_60559_BFP_EXT__ ||
        (__STDC_VERSION__ && __STDC_VERSION__ > 201710L)].
        * glimits.h: Likewise.

2019-10-03  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/91976
        * expr.c (emit_block_move_hints): Don't call can_move_by_pieces if
        size is not CONST_INT_P, set pieces_ok to false in that case.  Simplify
        CONST_INT_P (size) && pieces_ok to pieces_ok.  Formatting fix.

2019-10-02  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/80936
        * builtins.def (bcmp, bcopy, bzero): Declare nonnull.

2019-10-02  Richard Sandiford  <richard.sandiford@arm.com>

        * cgraph.c (cgraph_node::rtl_info): Use SET_HARD_REG_SET
        instead of reg_class_contents[ALL_REGS].

2019-09-30  Jason Merrill  <jason@redhat.com>

        Add some hash_map_safe_* functions like vec_safe_*.
        * hash-map.h (default_hash_map_size): New variable.
        (create_ggc): Use it as default argument.
        (hash_map_maybe_create, hash_map_safe_get)
        (hash_map_safe_get_or_insert, hash_map_safe_put): New fns.

2019-10-02  Jan Hubicka  <hubicka@ucw.cz>

        * cif-code.def (MAX_INLINE_INSNS_SINGLE_O2_LIMIT,
        MAX_INLINE_INSNS_AUTO_O2_LIMIT): New.
        * ipa-inline.c (inline_insns_single, inline_insns_auto): New functions.
        (can_inline_edge_by_limits_p): Use it.
        (big_speedup_p): Use PARAM_INLINE_MIN_SPEEDUP_O2.
        (want_inline_small_function_p): Use O2 bounds.
        (edge_badness): LIkewise.
        * opts.c (default_options): Add OPT_finline_functions.
        * params.def (PARAM_INLINE_MIN_SPEEDUP_O2,
        PARAM_MAX_INLINE_INSNS_SINGLE_O2, PARAM_MAX_INLINE_INSNS_AUTO_O2):
        New parameters.
        * doc/invoke.texi (-finline-functions): Update documentation.
        (max-inline-insns-single-O2, max-inline-insns-auto-O2,
        inline-min-speedup-O2): Document.
        (early-inlining-insns-O2): Simplify docs.

2019-10-02  Alexander Monakov  <amonakov@ispras.ru>

        PR rtl-optimization/87047
        * ifcvt.c (average_cost): New static function.  Use it...
        (noce_process_if_block): ... here.

2019-10-02  Aaron Sawdey <acsawdey@linux.ibm.com>

        * config/rs6000/rs6000-protos.h (expand_block_move): Change prototype.
        * config/rs6000/rs6000-string.c (expand_block_move): Add
        might_overlap parm.
        * config/rs6000/rs6000.md (movmemsi): Add new pattern.
        (cpymemsi): Add might_overlap parm to expand_block_move() call.

2019-10-02  Aaron Sawdey <acsawdey@linux.ibm.com>

        * builtins.c (expand_builtin_memory_copy_args): Add might_overlap parm.
        (expand_builtin_memcpy): Use might_overlap parm.
        (expand_builtin_mempcpy_args): Use might_overlap parm.
        (expand_builtin_memmove): Call expand_builtin_memory_copy_args.
        (expand_builtin_memory_copy_args): Add might_overlap parm.
        * expr.c (emit_block_move_via_cpymem): Rename to
        emit_block_move_via_pattern, add might_overlap parm, use cpymem
        or movmem optab as appropriate.
        (emit_block_move_hints): Add might_overlap parm, do the right
        thing for might_overlap==true.
        * expr.h (emit_block_move_hints): Update prototype.

2019-10-02  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-eh.h (unsplit_eh_edges): Declare.
        * tree-eh.c (maybe_remove_unreachable_handlers): Detect more cases.
        (unsplit_eh_edges): New function wrapping unsplit_all_eh.
        * gimple-ssa-store-merging.c: Include cfganal.h cfgcleanup.h except.h.
        (struct store_immediate_info): Add lp_nr field.
        (store_immediate_info::store_immediate_info): Add NR2 parameter and
        initialize lp_nr with it.
        (struct merged_store_group): Add lp_nr and only_constants fields.
        (merged_store_group::merged_store_group): Initialize them.
        (merged_store_group::can_be_merged_into): Deal with them.
        (pass_store_merging): Rename terminate_and_release_chain into
        terminate_and_process_chain.
        (pass_store_merging::terminate_and_process_all_chains): Adjust to above
        renaming and remove useless assertions.
        (pass_store_merging::terminate_all_aliasing_chains): Small tweak.
        (stmts_may_clobber_ref_p): Be prepared for different basic blocks.
        (imm_store_chain_info::coalesce_immediate_stores): Use only_constants
        instead of always recomputing it and compare lp_nr.
        (imm_store_chain_info::output_merged_store): If the group is in an
        active EH region, register new stores if they can throw.  Moreover,
        if the insertion has created new basic blocks, adjust the PHI nodes
        of the post landing pad.
        (imm_store_chain_info::output_merged_stores): If the original stores
        are in an active EH region, deregister them.
        (lhs_valid_for_store_merging_p): Prettify.
        (adjust_bit_pos): New function extracted from...
        (mem_valid_for_store_merging): ...here.  Use it for the base address
        and also for the offset if it is the addition of a constant.
        (lp_nr_for_store): New function.
        (pass_store_merging::process_store): Change return type to bool.
        Call lp_nr_for_store to initialize the store info.  Propagate the
        return status of various called functions to the return value.
        (store_valid_for_store_merging_p): New predicate.
        (enum basic_block_status): New enumeration.
        (get_status_for_store_merging): New function.
        (pass_store_merging::execute): If the function can throw and catch
        non-call exceptions, unsplit the EH edges on entry and clean up the
        CFG on exit if something changed.  Call get_status_for_store_merging
        for every basic block and keep the chains open across basic blocks
        when possible.  Terminate and process open chains at the end, if any.

2019-10-02  Richard Sandiford  <richard.sandiford@arm.com>

        * reginfo.c (globalize_reg): Fix shadowed variable in
        function_abis walk.

2019-10-02  Martin Jambor  <mjambor@suse.cz>

        * cgraph.c (symbol_table::create_edge): New parameter cloning_p,
        do not compute some stuff when set.
        (cgraph_node::create_edge): Likewise.
        (cgraph_node::create_indirect_edge): Renamed last parameter to
        coning_p and flipped its meaning, don't even calculate
        inline_failed when set.
        * cgraph.h (cgraph_node::create_edge): Add new parameter.
        (symbol_table::::create_edge): Likewise.
        (cgraph_node::create_indirect_edge): Rename last parameter, flip
        the default value.
        * cgraphclones.c (cgraph_edge::clone): Pass true cloning_p to all
        call graph edge creating functions.

2019-10-01  Jan Hubicka  <hubicka@ucw.cz>

        PR c++/91222
        * ipa-devirt.c (warn_types_mismatch): Fix conditional on anonymous
        namespace types.

2019-10-02  Shahab Vahedi  <shahab@synopsys.com>

        * config/arc/arc.h (ASM_SPEC): Pass -mcode-density.

2019-10-02  Richard Biener  <rguenther@suse.de>

        * tree-vectorizer.h (vect_transform_reduction): Declare.
        * tree-vect-stmts.c (vect_transform_stmt): Use it.
        * tree-vect-loop.c (vectorizable_reduction): Split out reduction
        stmt transform to ...
        (vect_transform_reduction): ... this.

2019-10-02  Tobias Burnus  <tobias@codesourcery.com>

        * omp-low.c (lower_omp_target): Dereference optional argument
        to work with the right pointer.

2019-10-02  Kwok Cheung Yeung  <kcy@codesourcery.com>

        * langhooks-def.h (LANG_HOOKS_OMP_IS_OPTIONAL_ARGUMENT): Default to
        false.
        (LANG_HOOKS_DECLS): Add LANG_HOOKS_OMP_IS_OPTIONAL_ARGUMENT.
        * langhooks.h (omp_is_optional_argument): New hook.
        * omp-general.c (omp_is_optional_argument): New.
        * omp-general.h (omp_is_optional_argument): New declaration.
        * omp-low.c (lower_omp_target): Create temporary for received value
        and take the address for new_var if the original variable was a
        DECL_BY_REFERENCE.  Use size of referenced object when a
        pass-by-reference optional argument used as argument to firstprivate.

2019-10-02  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/91940
        * tree-vect-patterns.c: Include tree-vector-builder.h and
        vec-perm-indices.h.
        (vect_recog_rotate_pattern): Also handle __builtin_bswap16, either by
        unpromoting the argument back to uint16_t, or by converting into a
        rotate, or into shifts plus ior.

2019-10-02  Richard Biener  <rguenther@suse.de>

        * tree-vectorizer.h (stmt_vec_info_type::cycle_phi_info_type):
        New.
        (vect_transform_cycle_phi): Declare.
        * tree-vect-stmts.c (vect_transform_stmt): Call
        vect_transform_cycle_phi.
        * tree-vect-loop.c (vectorizable_reduction): Split out
        PHI transformation stage to ...
        (vect_transform_cycle_phi): ... here.

2019-10-02  Richard Sandiford  <richard.sandiford@arm.com>

        PR middle-end/91957
        * lra-lives.c (make_hard_regno_dead): Don't record conflicts for
        eliminable registers.
        (make_hard_regno_live): Likewise, and don't make them live.

2019-10-01  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic-show-locus.c (layout::print_gap_in_line_numbering):
        Call pp_emit_prefix.
        (layout::print_source_line): Likewise.
        (layout::start_annotation_line): Likewise.
        (diagnostic_show_locus): Remove call to temporarily clear the
        prefix.
        (selftest::test_one_liner_fixit_remove): Add test coverage for the
        interaction of pp_set_prefix with rulers and fix-it hints.
        * diagnostic.c (default_diagnostic_finalizer): Temporarily clear
        prefix when calling diagnostic_show_locus, rather than destroying
        it afterwards.
        (print_parseable_fixits): Temporarily clear prefix.
        * pretty-print.c (pp_format): Save and restore line_length, rather
        than assuming it is zero.
        (pp_output_formatted_text): Remove assertion that line_length is
        zero.

2019-10-01  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-alias.c (nonoverlapping_component_refs_since_match_p):
        Rename to ...
        (nonoverlapping_refs_since_match_p): ... this; handle also
        ARRAY_REFs.
        (alias_stats): Update stats.
        (dump_alias_stats): Likewise.
        (cheap_array_ref_low_bound): New function.
        (aliasing_matching_component_refs_p): Add partial_overlap
        argument;
        pass it to nonoverlapping_refs_since_match_p.
        (aliasing_component_refs_walk): Update call of
        aliasing_matching_component_refs_p
        (nonoverlapping_array_refs_p): New function.
        (decl_refs_may_alias_p, indirect_ref_may_alias_decl_p,
        indirect_refs_may_alias_p): Update calls of
        nonoverlapping_refs_since_match_p.

2019-10-01  Maya Rashish  <coypu@sdf.org>

        PR target/85401
        * ira-color.c (allocno_copy_cost_saving): Call
        ira_init_register_move_cost_if_necessary.

2019-10-01  Maciej W. Rozycki  <macro@wdc.com>

        * Makefile.in (gnat_install_lib): New variable.
        * configure.ac: Substitute it.
        * configure: Regenerate.

2019-10-01  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/91222
        * ipa-devirt.c (warn_types_mismatch): Do not ICE when anonymous type
        is matched with non-C++ type

2019-10-01  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * tree-if-conv.c (tree_if_conversion): Move call to ifcvt_local_dce
        after local CSE.

2019-10-01  Jan Hubicka  <hubicka@ucw.cz>

        * doc/invoke.texi (early-inlining-insns-O2): Document.
        (early-inlining-insns): Update.
        * params.def (early-inlining-insns-O2): New bound.
        (early-inlining-insns): Update docs.
        * ipa-inline.c (want_early_inline_function_p): Use new bound.

2019-10-01  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/88562
        * config/sh/sh.c (sh_extending_set_of_reg::use_as_extended_reg): Use
        sh_check_add_incdec_notes to preserve REG_INC notes when replacing
        a memory access insn.

2019-10-01  Bill Schmidt  <wschmidt@linux.ibm.com>

        * config/rs6000/rs6000-p8swap.c (rtx_is_swappable_p): Don't swap
        vpmsumd.

2019-10-01  Ilya Leoshkevich  <iii@linux.ibm.com>

        PR target/77918
        * config/s390/s390.c (s390_expand_vec_compare): Use
        gen_vec_cmpordered and gen_vec_cmpunordered.
        * config/s390/vector.md (vec_cmpuneq, vec_cmpltgt, vec_ordered,
        vec_unordered): Delete.
        (vec_ordered<mode>): Rename to vec_cmpordered<mode>.
        (vec_unordered<mode>): Rename to vec_cmpunordered<mode>.
        (VEC_CMP_EXPAND): New iterator for the generic dispatcher.
        (vec_cmp<code>): Generic dispatcher.

2019-10-01  Ilya Leoshkevich  <iii@linux.ibm.com>

        PR target/77918
        * config/s390/vector.md (V_HW): Add V1TI in order to make
        vcond$a$b generate vcondv1tiv1tf.

2019-10-01  Richard Sandiford  <richard.sandiford@arm.com>

        PR rtl-optimization/91948
        * ira-build.c (ira_create_allocno): Initialize
        ALLOCNO_CROSSED_CALLS_ABIS.
        * ira-color.c (allocno_reload_assign): Pass hard_regno rather
        than regno to ira_need_caller_save_p.

2019-10-01  Alexandre Oliva <oliva@adacore.com>

        * config/i386/i386-options.c
        (ix86_recompute_optlev_based_flags): New, moved out of...
        (ix86_option_override_internal): ... this.  Call it.
        (ix86_override_options_after_change): Call it here too.

        PR debug/91507
        * dwarf2out.c (override_type_for_decl_p): New.
        (gen_variable_die): Use it.

2019-10-01  Richard Biener  <rguenther@suse.de>

        * tree-vect-loop.c (vectorizable_reduction): Move variables
        to where they are used.

2019-10-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * regrename.c (hide_operands): Use pc_rtx instead of cc0_rtx.
        (build_def_use): Use PC instead of CC0 in a comment.

2019-10-01  Richard Sandiford  <richard.sandiford@arm.com>

        * rtl.def (CLOBBER_HIGH): Delete.
        * doc/rtl.texi (clobber_high): Remove documentation.
        * rtl.h (SET_DEST): Remove CLOBBER_HIGH from the list of codes.
        (reg_is_clobbered_by_clobber_high): Delete.
        (gen_hard_reg_clobber_high): Likewise.
        * alias.c (record_set): Remove CLOBBER_HIGH handling.
        * cfgexpand.c (expand_gimple_stmt): Likewise.
        * combine-stack-adj.c (single_set_for_csa): Likewise.
        * combine.c (find_single_use_1, set_nonzero_bits_and_sign_copies)
        (can_combine_p, is_parallel_of_n_reg_sets, try_combine)
        (record_dead_and_set_regs_1, reg_dead_at_p_1): Likewise.
        * cse.c (invalidate_reg): Remove clobber_high parameter.
        (invalidate): Update call accordingly.
        (canonicalize_insn): Remove CLOBBER_HIGH handling.
        (invalidate_from_clobbers, invalidate_from_sets_and_clobbers)
        (count_reg_usage, insn_live_p): Likewise.
        * cselib.h (cselib_invalidate_rtx): Remove sett argument.
        * cselib.c (cselib_invalidate_regno, cselib_invalidate_rtx): Likewise.
        (cselib_invalidate_rtx_note_stores): Update call accordingly.
        (cselib_expand_value_rtx_1): Remove CLOBBER_HIGH handling.
        (cselib_invalidate_regno, cselib_process_insn): Likewise.
        * dce.c (deletable_insn_p, mark_nonreg_stores_1): Likewise.
        (mark_nonreg_stores_2): Likewise.
        * df-scan.c (df_find_hard_reg_defs, df_uses_record): Likewise.
        (df_get_call_refs): Likewise.
        * dwarf2out.c (mem_loc_descriptor): Likewise.
        * emit-rtl.c (verify_rtx_sharing): Likewise.
        (copy_insn_1, copy_rtx_if_shared_1): Likewise.
        (hard_reg_clobbers_high, gen_hard_reg_clobber_high): Delete.
        * genconfig.c (walk_insn_part): Remove CLOBBER_HIGH handling.
        * genemit.c (gen_exp, gen_insn): Likewise.
        * genrecog.c (validate_pattern, remove_clobbers): Likewise.
        * haifa-sched.c (haifa_classify_rtx): Likewise.
        * ira-build.c (create_insn_allocnos): Likewise.
        * ira-costs.c (scan_one_insn): Likewise.
        * ira.c (equiv_init_movable_p, memref_referenced_p): Likewise.
        (rtx_moveable_p, interesting_dest_for_shprep): Likewise.
        * jump.c (mark_jump_label_1): Likewise.
        * lra-int.h (lra_insn_reg::clobber_high): Delete.
        * lra-eliminations.c (lra_eliminate_regs_1): Remove CLOBBER_HIGH
        handling.
        (mark_not_eliminable): Likewise.
        * lra-lives.c (process_bb_lives): Likewise.
        * lra.c (new_insn_reg): Remove clobber_high parameter.
        (collect_non_operand_hard_regs): Likewise.  Update call to new
        insn_reg.  Remove CLOBBER_HIGH handling.
        (lra_set_insn_recog_data): Remove CLOBBER_HIGH handling.  Update call
        to collect_non_operand_hard_regs.
        (add_regs_to_insn_regno_info): Remove CLOBBER_HIGH handling.
        Update call to new_insn_reg.
        (lra_update_insn_regno_info): Remove CLOBBER_HIGH handling.
        * postreload.c (reload_cse_simplify, reload_combine_note_use)
        (move2add_note_store): Likewise.
        * print-rtl.c (print_pattern): Likewise.
        * recog.c (store_data_bypass_p_1, store_data_bypass_p): Likewise.
        (if_test_bypass_p): Likewise.
        * regcprop.c (kill_clobbered_value, kill_set_value): Likewise.
        * reginfo.c (reg_scan_mark_refs): Likewise.
        * reload1.c (maybe_fix_stack_asms, eliminate_regs_1): Likewise.
        (elimination_effects, mark_not_eliminable, scan_paradoxical_subregs)
        (forget_old_reloads_1): Likewise.
        * reorg.c (find_end_label, try_merge_delay_insns, redundant_insn)
        (own_thread_p, fill_simple_delay_slots, fill_slots_from_thread)
        (dbr_schedule): Likewise.
        * resource.c (update_live_status, mark_referenced_resources)
        (mark_set_resources): Likewise.
        * rtl.c (copy_rtx): Likewise.
        * rtlanal.c (reg_referenced_p, set_of_1, single_set_2, noop_move_p)
        (note_pattern_stores): Likewise.
        (reg_is_clobbered_by_clobber_high): Delete.
        * sched-deps.c (sched_analyze_reg, sched_analyze_insn): Remove
        CLOBBER_HIGH handling.

2019-10-01  Richard Sandiford  <richard.sandiford@arm.com>

        PR target/91452
        * config/aarch64/aarch64.h (ARM_PCS_TLSDESC): New arm_pcs.
        * config/aarch64/aarch64-protos.h (aarch64_tlsdesc_abi_id): Declare.
        * config/aarch64/aarch64.c (aarch64_hard_regno_call_part_clobbered):
        Handle ARM_PCS_TLSDESC.
        (aarch64_tlsdesc_abi_id): New function.
        * config/aarch64/aarch64.md (tlsdesc_small_sve_<mode>): Use a call
        rtx instead of a list of clobbers and clobber_highs.
        (tlsdesc_small_<mode>): Update accordingly.

2019-10-01  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_expand_call): Take an
        extra callee_abi argument.
        * config/aarch64/aarch64.c (aarch64_expand_call): Likewise.
        Insert a CALLEE_ABI unspec into the call pattern as the second
        element in the PARALLEL.
        (aarch64_simd_call_p): Delete.
        (aarch64_insn_callee_abi): Get the arm_pcs of the callee from
        the new CALLEE_ABI element of the PARALLEL.
        (aarch64_init_cumulative_args): Get the arm_pcs of the callee
        from the function type, if given.
        (aarch64_function_arg_advance): Handle ARM_PCS_SIMD.
        (aarch64_function_arg): Likewise.  Return the arm_pcs of the callee
        when passed the function_arg_info end marker.
        (aarch64_output_mi_thunk): Pass the arm_pcs of the callee as the
        final argument of gen_sibcall.
        * config/aarch64/aarch64.md (UNSPEC_CALLEE_ABI): New unspec.
        (call): Make operand 2 a const_int_operand and pass it to expand_call.
        Wrap it in an UNSPEC_CALLEE_ABI unspec for the dummy define_expand
        pattern.
        (call_value): Likewise operand 3.
        (sibcall): Likewise operand 2.  Place the unspec before rather than
        after the return.
        (sibcall_value): Likewise operand 3.
        (*call_insn, *call_value_insn): Include an UNSPEC_CALLEE_ABI.
        (tlsgd_small_<mode>, *tlsgd_small_<mode>): Likewise.
        (*sibcall_insn, *sibcall_value_insn): Likewise.  Remove empty
        constraint strings.
        (untyped_call): Pass const0_rtx as the callee ABI to gen_call.

2019-10-01  Richard Sandiford  <richard.sandiford@arm.com>

        * regs.h (HARD_REGNO_CALLER_SAVE_MODE): Update call to
        choose_hard_reg_mode.
        * config/sparc/sparc.h (HARD_REGNO_CALLER_SAVE_MODE): Likewise.

2019-10-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * doc/md.texi (vec_pack_trunc_@var{m}): Fix typo.
        (vec_pack_sfix_trunc_@var{m}, vec_pack_ufix_trunc_@var{m}): Ditto.
        (vec_packs_float_@var{m}, vec_packu_float_@var{m}): Ditto.

2019-09-30  David Malcolm  <dmalcolm@redhat.com>

        * diagnostic-show-locus.c (line_label::line_label): Initialize
        m_has_vbar.
        (line_label::comparator): Reverse the sort order by m_state_idx,
        so that when the list is walked backwards the labels appear in
        order of insertion into the rich_location.
        (line_label::m_has_vbar): New field.
        (layout::print_any_labels): When dealing with multiple labels at
        the same line and column, only print vertical bars for the one
        with the highest label_line.
        (selftest::test_one_liner_labels): Update test for multiple labels
        to expect the labels to be in the order of insertion into the
        rich_location.  Add a test for many such labels, where the column
        numbers are out-of-order relative to the insertion order.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * config/i386/i386.h (ix86_frame::expensive_p): New field.
        (ix86_frame::expensive_count): Likewise.
        * config/i386/i386.c (ix86_compute_frame_layout): Make the choice
        of use_fast_prologue_epilogue robust against incidental changes
        in function size.

2019-09-30  Ilya Leoshkevich  <iii@linux.ibm.com>

        PR target/77918
        * config/s390/vector.md (vec_unordered<mode>): Call
        gen_vec_ordered<mode>.

2019-09-30  Yuliang Wang  <yuliang.wang@arm.com>

        * config/aarch64/aarch64-sve.md (sdiv_pow2<mode>3):
        New pattern for ASRD.
        * config/aarch64/iterators.md (UNSPEC_ASRD): New unspec.
        * internal-fn.def (IFN_DIV_POW2): New internal function.
        * optabs.def (sdiv_pow2_optab): New optab.
        * tree-vect-patterns.c (vect_recog_divmod_pattern):
        Modify pattern to support new operation.
        * doc/md.texi (sdiv_pow2$var{m3}): Documentation for the above.
        * doc/sourcebuild.texi (vect_sdiv_pow2_si):
        Document new target selector.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.c (aarch64_layout_frame): Use crtl->abi
        to test whether we're compiling a vector PCS function and to test
        whether the function needs to save a particular register.
        Remove the vector PCS handling of df_set_regs_ever_live.
        (aarch64_components_for_bb): Use crtl->abi to test whether
        the function needs to save a particular register.
        (aarch64_process_components): Use crtl->abi to test whether
        we're compiling a vector PCS function.
        (aarch64_expand_prologue, aarch64_expand_epilogue): Likewise.
        (aarch64_epilogue_uses): Remove handling of vector PCS functions.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_use_simple_return_insn_p):
        Delete.
        * config/aarch64/aarch64.c (aarch64_components_for_bb): Check
        whether the block calls a function that clobbers more registers
        than the current function is allowed to.
        (aarch64_use_simple_return_insn_p): Delete.
        * config/aarch64/aarch64.md (simple_return): Remove condition.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * function-abi.h (function_abi_aggregator): New class.
        * function-abi.cc (function_abi_aggregator::caller_save_regs): New
        function.
        * ira.c (update_equiv_regs_prescan): New function.  Call
        set_paradoxical_subreg here rather than...
        (update_equiv_regs): ...here.
        (ira): Call update_equiv_regs_prescan.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * hard-reg-set.h (regs_invalidated_by_call): Only define if
        IN_TARGET_CODE.
        (call_used_or_fixed_regs): Likewise.
        (call_used_or_fixed_reg_p): Likewise.
        * reginfo.c (regs_invalidated_by_call): New macro.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * shrink-wrap.c: Include function-abi.h.
        (requires_stack_frame_p): Use crtl->abi to test whether the
        current function can use a register without saving it first.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * sel-sched-ir.h (_def::crosses_call): Replace with...
        (_def::crossed_call_abis): ..this new field.
        (def_list_add): Take a mask of ABIs instead of a crosses_call
        boolean.
        * sel-sched-ir.c (def_list_add): Likewise.  Update initialization
        of _def accordingly.
        * sel-sched.c: Include function-abi.h.
        (hard_regs_data::regs_for_call_clobbered): Delete.
        (reg_rename::crosses_call): Replace with...
        (reg_rename::crossed_call_abis): ...this new field.
        (fur_static_params::crosses_call): Replace with...
        (fur_static_params::crossed_call_abis): ...this new field.
        (init_regs_for_mode): Don't initialize sel_hrd.regs_for_call_clobbered.
        (init_hard_regs_data): Use crtl->abi to test which registers the
        current function would need to save before it uses them.
        (mark_unavailable_hard_regs): Update handling of call-clobbered
        registers, using call_clobbers_in_region to find out which registers
        might be call-clobbered (but without taking -fipa-ra into account
        for now).  Remove separate handling of partially call-clobbered
        registers.
        (verify_target_availability): Use crossed_call_abis instead of
        crosses_call.
        (get_spec_check_type_for_insn, find_used_regs): Likewise.
        (fur_orig_expr_found, fur_on_enter, fur_orig_expr_not_found): Likewise.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * sched-deps.c (deps_analyze_insn): Use the ABI of the target
        function to test whether a register is fully or partly clobbered.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * rtlanal.c: Include function-abi.h.
        (reg_set_p): Use insn_callee_abi to get the ABI of the called
        function and clobbers_reg_p to test whether the register
        is call-clobbered.
        (find_all_hard_reg_sets): When implicit is true, use insn_callee_abi
        to get the ABI of the called function and full_reg_clobbers to
        get the set of fully call-clobbered registers.  Warn about the
        pitfalls of using this mode.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * reload.c: Include function-abi.h.
        (find_equiv_reg): Use clobbers_reg_p to test whether either
        of the equivalent registers is clobbered by a call.
        * reload1.c: Include function-abi.h.
        (reg_reloaded_call_part_clobbered): Delete.
        (reload): Use crtl->abi to test which registers would need
        saving in the prologue before use.
        (find_reg): Likewise.
        (emit_reload_insns): Remove code for reg_reloaded_call_part_clobbered.
        (reload_as_needed): Likewise.  Use full_and_partial_reg_clobbers
        instead of call_used_or_fixed_regs | reg_reloaded_call_part_clobbered.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * regrename.h (du_head::call_clobber_mask): New field.
        (du_head::need_caller_save_reg): Replace with...
        (du_head::call_abis): ...this new field.
        * regrename.c: Include function-abi.h.
        (call_clobbered_in_chain_p): New function.
        (check_new_reg_p): Use crtl->abi when deciding whether a register
        is free for use after RA.  Use call_clobbered_in_chain_p to test
        whether a candidate register would be clobbered by a call.
        (find_rename_reg): Don't add call-clobber conflicts here.
        (rename_chains): Check call_abis instead of need_caller_save_reg.
        (merge_chains): Update for changes to du_head.
        (build_def_use): Use insn_callee_abi to get the ABI of the call insn
        target.  Record the ABI identifier in call_abis and the set of
        fully or partially clobbered registers in call_clobber_mask.
        Add fully-clobbered registers to hard_conflicts here rather
        than in find_rename_reg.
        * config/aarch64/cortex-a57-fma-steering.c: Include function-abi.h.
        (rename_single_chain): Check call_abis instead of need_caller_save_reg.
        * config/aarch64/falkor-tag-collision-avoidance.c: Include
        function-abi.h.
        * config/c6x/c6x.c: Likewise.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * regcprop.c (copyprop_hardreg_forward_1): Use the recorded
        mode of the register when deciding whether it is no longer
        available after a call.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * recog.c: Include function-abi.h.
        (peep2_find_free_register): Use crtl->abi when deciding whether
        a register is free for use after RA.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * postreload-gcse.c: Include regs.h and function-abi.h.
        (record_opr_changes): Use insn_callee_abi to get the ABI of the
        call insn target.  Conservatively assume that partially-clobbered
        registers are altered.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * postreload.c (reload_combine_recognize_pattern): Use crtl->abi
        when deciding whether a register is free for use after RA.
        (reload_combine): Remove unnecessary use of fixed_reg_set.
        (reload_cse_move2add): Use insn_callee_abi to get the ABI of the
        call insn target.  Use reg_mode when testing whether a register
        is no longer available.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * target.def (return_call_with_max_clobbers): Delete.
        * doc/tm.texi.in (TARGET_RETURN_CALL_WITH_MAX_CLOBBERS): Delete.
        * doc/tm.texi: Regenerate.
        * config/aarch64/aarch64.c (aarch64_return_call_with_max_clobbers)
        (TARGET_RETURN_CALL_WITH_MAX_CLOBBERS): Delete.
        * lra-int.h (lra_reg::actual_call_used_reg_set): Delete.
        (lra_reg::call_insn): Delete.
        * lra.c: Include function-abi.h.
        (initialize_lra_reg_info_element): Don't initialize the fields above.
        (lra): Use crtl->abi to test whether the current function needs to
        save a register in the prologue.  Remove special pre-inheritance
        lra_create_live_ranges pass for flag_ipa_ra.
        * lra-assigns.c: Include function-abi.h
        (find_hard_regno_for_1): Use crtl->abi to test whether the current
        function needs to save a register in the prologue.
        (lra_assign): Assert that registers aren't allocated to a
        conflicting register, rather than checking only for overlaps
        with call_used_or_fixed_regs.  Do this even for flag_ipa_ra,
        and for registers that are not live across a call.
        * lra-constraints.c (last_call_for_abi): New variable.
        (full_and_partial_call_clobbers): Likewise.
        (setup_next_usage_insn): Remove the register from
        full_and_partial_call_clobbers.
        (need_for_call_save_p): Use call_clobbered_in_region_p to test
        whether the register needs a caller save.
        (need_for_split_p): Use full_and_partial_reg_clobbers instead
        of call_used_or_fixed_regs.
        (inherit_in_ebb): Initialize and maintain last_call_for_abi and
        full_and_partial_call_clobbers.
        * lra-lives.c (check_pseudos_live_through_calls): Replace
        last_call_used_reg_set and call_insn arguments with an abi argument.
        Remove handling of lra_reg::call_insn.  Use function_abi::mode_clobbers
        as the set of conflicting registers.
        (calls_have_same_clobbers_p): Delete.
        (process_bb_lives): Track the ABI of the last call instead of an
        insn/HARD_REG_SET pair.  Update calls to
        check_pseudos_live_through_calls.  Use eh_edge_abi to calculate
        the set of registers that could be clobbered by an EH edge.
        Include partially-clobbered as well as fully-clobbered registers.
        (lra_create_live_ranges_1): Don't initialize lra_reg::call_insn.
        * lra-remat.c: Include function-abi.h.
        (call_used_regs_arr_len, call_used_regs_arr): Delete.
        (set_bb_regs): Use insn_callee_abi to get the set of call-clobbered
        registers and bitmap_view to combine them into dead_regs.
        (call_used_input_regno_present_p): Take a function_abi argument
        and use it to test whether a register is call-clobbered.
        (calculate_gen_cands): Use insn_callee_abi to get the ABI of the
        call insn target.  Update tje call to call_used_input_regno_present_p.
        (do_remat): Likewise.
        (lra_remat): Remove the initialization of call_used_regs_arr_len
        and call_used_regs_arr.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * loop-iv.c: Include regs.h and function-abi.h.
        (simplify_using_initial_values): Use insn_callee_abi to get the
        ABI of the call insn target.  Conservatively assume that
        partially-clobbered registers are altered.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * function-abi.h (call_clobbers_in_region): Declare.
        (call_clobbered_in_region_p): New function.
        * function-abi.cc (call_clobbers_in_region): Likewise.
        * ira-int.h: Include function-abi.h.
        (ira_allocno::crossed_calls_abis): New field.
        (ALLOCNO_CROSSED_CALLS_ABIS): New macro.
        (ira_need_caller_save_regs): New function.
        (ira_need_caller_save_p): Likewise.
        * ira.c (setup_reg_renumber): Use ira_need_caller_save_p instead
        of call_used_or_fixed_regs.
        (do_reload): Use crtl->abi to test whether the current function
        needs to save a register in the prologue.  Count registers that
        need to be saved rather than registers that don't.
        * ira-build.c (create_cap_allocno): Copy ALLOCNO_CROSSED_CALLS_ABIS.
        Remove unnecessary | from ALLOCNO_CROSSED_CALLS_CLOBBERED_REGS.
        (propagate_allocno_info): Merge ALLOCNO_CROSSED_CALLS_ABIS too.
        (propagate_some_info_from_allocno): Likewise.
        (copy_info_to_removed_store_destinations): Likewise.
        (ira_flattening): Say that ALLOCNO_CROSSED_CALLS_ABIS and
        ALLOCNO_CROSSED_CALLS_CLOBBERED_REGS are handled conservatively.
        (ira_build): Use ira_need_caller_save_regs instead of
        call_used_or_fixed_regs.
        * ira-color.c (calculate_saved_nregs): Use crtl->abi to test
        whether the current function would need to save a register
        before using it.
        (calculate_spill_cost): Likewise.
        (allocno_reload_assign): Use ira_need_caller_save_regs and
        ira_need_caller_save_p instead of call_used_or_fixed_regs.
        * ira-conflicts.c (ira_build_conflicts): Use
        ira_need_caller_save_regs rather than call_used_or_fixed_regs
        as the set of call-clobbered registers.  Remove the
        call_used_or_fixed_regs mask from the calculation of
        temp_hard_reg_set and mask its use instead.  Remove special
        handling of partially-clobbered registers.
        * ira-costs.c (ira_tune_allocno_costs): Use ira_need_caller_save_p.
        * ira-lives.c (process_bb_node_lives): Use mode_clobbers to
        calculate the set of conflicting registers for calls that
        can throw.  Record the ABIs of calls in ALLOCNO_CROSSED_CALLS_ABIS.
        Use full_and_partial_reg_clobbers rather than full_reg_clobbers
        for the calculation of ALLOCNO_CROSSED_CALLS_CLOBBERED_REGS.
        Use eh_edge_abi to calculate the set of registers that could
        be clobbered by an EH edge.  Include partially-clobbered as
        well as fully-clobbered registers.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * haifa-sched.c: Include function-abi.h.
        (alloc_global_sched_pressure_data): Use crtl->abi to check whether
        the function would need to save a register before using it.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * gcse.c: Include function-abi.h.
        (compute_hash_table_work): Use insn_callee_abi to get the ABI of
        the call insn target.  Invalidate partially call-clobbered
        registers as well as fully call-clobbered ones.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * function.c (aggregate_value_p): Work out which ABI the
        function is using before testing which registers are at least
        partly preserved by a call.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * early-remat.c: Include regs.h and function-abi.h.
        (early_remat::maybe_add_candidate): Don't check for call-clobbered
        registers here.
        (early_remat::restrict_remat_for_unavail_regs): New function.
        (early_remat::restrict_remat_for_call): Likewise.
        (early_remat::process_block): Before calling emit_remat_insns
        for a previous call in the block, invalidate any candidates
        that would clobber call-preserved registers.
        (early_remat::emit_remat_insns_for_block): Likewise for the
        final call in a block.  Do the same thing for live-in registers
        when calling emit_remat_insns at the head of a block.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * df-scan.c (df_get_entry_block_def_set): Use crtl->abi to test
        whether the current function needs to save at least part of a
        register before using it.
        (df_get_exit_block_use_set): Likewise for epilogue restores.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * df-problems.c: Include regs.h and function-abi.h.
        (df_rd_problem_data): Rename sparse_invalidated_by_call to
        sparse_invalidated_by_eh and dense_invalidated_by_call to
        dense_invalidated_by_eh.
        (df_print_bb_index): Update accordingly.
        (df_rd_alloc, df_rd_start_dump, df_rd_confluence_n): Likewise.
        (df_lr_confluence_n): Use eh_edge_abi to get the set of registers
        that are clobbered by an EH edge.  Clobber partially-clobbered
        registers as well as fully-clobbered ones.
        (df_md_confluence_n): Likewise.
        (df_rd_local_compute): Likewise.  Update for changes to
        df_rd_problem_data.
        * df-scan.c (df_scan_start_dump): Use eh_edge_abi to get the set
        of registers that are clobbered by an EH edge.  Includde partially-
        clobbered registers as well as fully-clobbered ones.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * cselib.c (cselib_process_insn): If we know what mode a
        register was set in, check whether it is clobbered in that
        mode by a call.  Only fall back to reg_raw_mode if that fails.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * cse.c: Include regs.h and function-abi.h.
        (invalidate_for_call): Take the call insn as an argument.
        Use insn_callee_abi to get the ABI of the call and invalidate
        partially clobbered registers as well as fully clobbered ones.
        (cse_insn): Update call accordingly.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * combine.c: Include function-abi.h.
        (record_dead_and_set_regs): Use insn_callee_abi to get the ABI
        of the target of call insns.  Invalidate partially-clobbered
        registers as well as fully-clobbered ones.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * cfgloopanal.c: Include regs.h and function-abi.h.
        (init_set_costs): Use default_function_abi to test whether
        a general register is call-clobbered.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * cfgcleanup.c (old_insns_match_p): Compare the ABIs of calls
        instead of the call-clobbered sets.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * caller-save.c (setup_save_areas): Remove redundant |s of
        fixed_reg_set.
        (save_call_clobbered_regs): Likewise.  Use the call ABI rather
        than call_used_or_fixed_regs to decide whether a REG_RETURNED
        value is useful.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * rtl.h (predefined_function_abi): Declare.
        (choose_hard_reg_mode): Take a pointer to a predefined_function_abi
        instead of a boolean call_save flag.
        * config/gcn/gcn.c (gcn_hard_regno_caller_save_mode): Update call
        accordingly.
        * config/i386/i386.h (HARD_REGNO_CALLER_SAVE_MODE): Likewise.
        * config/ia64/ia64.h (HARD_REGNO_CALLER_SAVE_MODE): Likewise.
        * config/mips/mips.c (mips_hard_regno_caller_save_mode): Likewise.
        * config/msp430/msp430.h (HARD_REGNO_CALLER_SAVE_MODE): Likewise.
        * config/rs6000/rs6000.h (HARD_REGNO_CALLER_SAVE_MODE): Likewise.
        * config/sh/sh.c (sh_hard_regno_caller_save_mode): Likewise.
        * reginfo.c (init_reg_modes_target): Likewise.
        (choose_hard_reg_mode): Take a pointer to a predefined_function_abi
        instead of a boolean call_save flag.
        * targhooks.c: Include function-abi.h.
        (default_dwarf_frame_reg_mode): Update call to choose_hard_reg_mode,
        using eh_edge_abi to choose the mode.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * target.def (hard_regno_call_part_clobbered): Take an ABI
        identifier instead of an rtx_insn.
        * doc/tm.texi: Regenerate.
        * hooks.h (hook_bool_insn_uint_mode_false): Delete.
        (hook_bool_uint_uint_mode_false): New function.
        * hooks.c (hook_bool_insn_uint_mode_false): Delete.
        (hook_bool_uint_uint_mode_false): New function.
        * config/aarch64/aarch64.c (aarch64_hard_regno_call_part_clobbered):
        Take an ABI identifier instead of an rtx_insn.
        * config/avr/avr.c (avr_hard_regno_call_part_clobbered): Likewise.
        * config/i386/i386.c (ix86_hard_regno_call_part_clobbered): Likewise.
        * config/mips/mips.c (mips_hard_regno_call_part_clobbered): Likewise.
        * config/pru/pru.c (pru_hard_regno_call_part_clobbered): Likewise.
        * config/rs6000/rs6000.c (rs6000_hard_regno_call_part_clobbered):
        Likewise.
        * config/s390/s390.c (s390_hard_regno_call_part_clobbered): Likewise.
        * cselib.c: Include function-abi.h.
        (cselib_process_insn): Update call to
        targetm.hard_regno_call_part_clobbered, using insn_callee_abi
        to get the appropriate ABI identifier.
        * function-abi.cc (predefined_function_abi::initialize): Update call
        to targetm.hard_regno_call_part_clobbered.
        * ira-conflicts.c (ira_build_conflicts): Likewise.
        * ira-costs.c (ira_tune_allocno_costs): Likewise.
        * lra-constraints.c: Include function-abi.h.
        (need_for_call_save_p): Update call to
        targetm.hard_regno_call_part_clobbered, using insn_callee_abi
        to get the appropriate ABI identifier.
        * lra-lives.c (check_pseudos_live_through_calls): Likewise.
        * regcprop.c (copyprop_hardreg_forward_1): Update call
        to targetm.hard_regno_call_part_clobbered.
        * reginfo.c (choose_hard_reg_mode): Likewise.
        * regrename.c (check_new_reg_p): Likewise.
        * reload.c (find_equiv_reg): Likewise.
        * reload1.c (emit_reload_insns): Likewise.
        * sched-deps.c: Include function-abi.h.
        (deps_analyze_insn): Update call to
        targetm.hard_regno_call_part_clobbered, using insn_callee_abi
        to get the appropriate ABI identifier.
        * sel-sched.c (init_regs_for_mode, mark_unavailable_hard_regs): Update
        call to targetm.hard_regno_call_part_clobbered.
        * targhooks.c (default_dwarf_frame_reg_mode): Likewise.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * config/i386/i386.c: Include function-abi.h.
        (ix86_avx_u128_mode_needed): Treat function calls as AVX_U128_ANY
        if they preserve some 256-bit or 512-bit SSE registers.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * target.def (insn_callee_abi): New hook.
        (remove_extra_call_preserved_regs): Delete.
        * doc/tm.texi.in (TARGET_INSN_CALLEE_ABI): New macro.
        (TARGET_REMOVE_EXTRA_CALL_PRESERVED_REGS): Delete.
        * doc/tm.texi: Regenerate.
        * targhooks.h (default_remove_extra_call_preserved_regs): Delete.
        * targhooks.c (default_remove_extra_call_preserved_regs): Delete.
        * config/aarch64/aarch64.c (aarch64_simd_call_p): Constify the
        insn argument.
        (aarch64_remove_extra_call_preserved_regs): Delete.
        (aarch64_insn_callee_abi): New function.
        (TARGET_REMOVE_EXTRA_CALL_PRESERVED_REGS): Delete.
        (TARGET_INSN_CALLEE_ABI): New macro.
        * rtl.h (get_call_fndecl): Declare.
        (cgraph_rtl_info): Fix formatting.  Tweak comment for
        function_used_regs.  Remove function_used_regs_valid.
        * rtlanal.c (get_call_fndecl): Moved from final.c
        * function-abi.h (insn_callee_abi): Declare.
        (target_function_abi_info): Mention insn_callee_abi.
        * function-abi.cc (fndecl_abi): Handle flag_ipa_ra in a similar
        way to get_call_reg_set_usage did.
        (insn_callee_abi): New function.
        * regs.h (get_call_reg_set_usage): Delete.
        * final.c: Include function-abi.h.
        (collect_fn_hard_reg_usage): Add fixed and stack registers to
        function_used_regs before the main loop rather than afterwards.
        Use insn_callee_abi instead of get_call_reg_set_usage.  Exit early
        if function_used_regs ends up not being useful.
        (get_call_fndecl): Move to rtlanal.c
        (get_call_cgraph_rtl_info, get_call_reg_set_usage): Delete.
        * caller-save.c: Include function-abi.h.
        (setup_save_areas, save_call_clobbered_regs): Use insn_callee_abi
        instead of get_call_reg_set_usage.
        * cfgcleanup.c: Include function-abi.h.
        (old_insns_match_p): Use insn_callee_abi instead of
        get_call_reg_set_usage.
        * cgraph.h (cgraph_node::rtl_info): Take a const_tree instead of
        a tree.
        * cgraph.c (cgraph_node::rtl_info): Likewise.  Initialize
        function_used_regs.
        * df-scan.c: Include function-abi.h.
        (df_get_call_refs): Use insn_callee_abi instead of
        get_call_reg_set_usage.
        * ira-lives.c: Include function-abi.h.
        (process_bb_node_lives): Use insn_callee_abi instead of
        get_call_reg_set_usage.
        * lra-lives.c: Include function-abi.h.
        (process_bb_lives): Use insn_callee_abi instead of
        get_call_reg_set_usage.
        * postreload.c: Include function-abi.h.
        (reload_combine): Use insn_callee_abi instead of
        get_call_reg_set_usage.
        * regcprop.c: Include function-abi.h.
        (copyprop_hardreg_forward_1): Use insn_callee_abi instead of
        get_call_reg_set_usage.
        * resource.c: Include function-abi.h.
        (mark_set_resources, mark_target_live_regs): Use insn_callee_abi
        instead of get_call_reg_set_usage.
        * var-tracking.c: Include function-abi.h.
        (dataflow_set_clear_at_call): Use insn_callee_abi instead of
        get_call_reg_set_usage.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * target.def (fntype_abi): New target hook.
        * doc/tm.texi.in (TARGET_FNTYPE_ABI): Likewise.
        * doc/tm.texi: Regenerate.
        * target.h (predefined_function_abi): Declare.
        * function-abi.cc (fntype_abi): Call targetm.calls.fntype_abi,
        if defined.
        * config/aarch64/aarch64.h (ARM_PCS_SIMD): New arm_pcs value.
        * config/aarch64/aarch64.c: Include function-abi.h.
        (aarch64_simd_abi, aarch64_fntype_abi): New functions.
        (TARGET_FNTYPE_ABI): Define.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * Makefile.in (OBJS): Add function-abi.o.
        (GTFILES): Add function-abi.h.
        * function-abi.cc: New file.
        * function-abi.h: Likewise.
        * emit-rtl.h (rtl_data::abi): New field.
        * function.c: Include function-abi.h.
        (prepare_function_start): Initialize crtl->abi.
        * read-rtl-function.c: Include regs.h and function-abi.h.
        (read_rtl_function_body): Initialize crtl->abi.
        (read_rtl_function_body_from_file_range): Likewise.
        * reginfo.c: Include function-abi.h.
        (init_reg_sets_1): Initialize default_function_abi.
        (globalize_reg): Call add_full_reg_clobber for each predefined ABI
        when making a register global.
        * target-globals.h (this_target_function_abi_info): Declare.
        (target_globals::function_abi_info): New field.
        (restore_target_globals): Copy it.
        * target-globals.c: Include function-abi.h.
        (default_target_globals): Initialize the function_abi_info field.
        (target_globals): Allocate it.
        (save_target_globals): Free it.

2019-09-30  Nick Clifton  <nickc@redhat.com>

        PR target/85978
        * config/frv/frv.c (frv_register_move_cost): Add break statements
        to avoid falling through to the wrong cases.  Tidy code.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.c (aarch64_hard_regno_call_part_clobbered):
        For multi-registers modes, test how big each register part is.

2019-09-30  Nick Clifton  <nickc@redhat.com>

        PR target/59205
        * config/iq2000/iq2000.c (iq2000_select_section): Delete.
        (TARGET_ASM_SELECT_SECTION): Remove definition.
        (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Allow definition.

2019-09-30  Ilya Leoshkevich  <iii@linux.ibm.com>

        * emit-rtl.c (init_raw_REG): New function.
        (gen_raw_REG): Use init_raw_REG.
        * gengenrtl.c (gendef): Emit init_* functions and alloca_*
        macros.
        * rtl.c (rtx_alloc_stat_v): Use rtx_init.
        * rtl.h (rtx_init): New function.
        (rtx_alloca): New function.
        (init_raw_REG): New function.
        (alloca_raw_REG): New macro.

2019-09-30  Michael Meissner  <meissner@linux.ibm.com>

        * config/rs6000/predicates.md (pcrel_address): Delete predicate.
        (pcrel_local_address): Replace pcrel_address predicate, use the
        new function address_to_insn_form.
        (pcrel_external_address): Replace with new implementation using
        address_to_insn_form..
        (prefixed_mem_operand): Delete predicate which is now unused.
        (pcrel_external_mem_operand): Delete predicate which is now
        unused.
        * config/rs6000/rs6000-protos.h (enum insn_form): New
        enumeration.
        (enum non_prefixed_form): New enumeration.
        (address_to_insn_form): New declaration.
        (prefixed_load_p): New declaration.
        (prefixed_store_p): New declaration.
        (prefixed_paddi_p): New declaration.
        (rs6000_asm_output_opcode): New declaration.
        (rs6000_final_prescan_insn): Move declaration and update calling
        signature.
        (address_is_prefixed): New helper inline function.
        * config/rs6000/rs6000.c(print_operand_address): Check for either
        PC-relative local symbols or PC-relative external symbols.
        (rs6000_emit_move): Support loading PC-relative addresses.
        (mode_supports_prefixed_address_p): Delete, no longer used.
        (rs6000_prefixed_address_mode_p): Delete, no longer used.
        (address_to_insn_form): New function to decode an address format.
        (reg_to_non_prefixed): New function to identify what the
        non-prefixed memory instruction format is for a register.
        (prefixed_load_p): New function to identify prefixed loads.
        (prefixed_store_p): New function to identify prefixed stores.
        (prefixed_paddi_p): New function to identify prefixed load
        immediates.
        (next_insn_prefixed_p): New static state variable.
        (rs6000_final_prescan_insn): New function to determine if an insn
        uses a prefixed instruction.
        (rs6000_asm_output_opcode): New function to emit 'p' in front of a
        prefixed instruction.
        * config/rs6000/rs6000.h (FINAL_PRESCAN_INSN): New target hook.
        (ASM_OUTPUT_OPCODE): New target hook.
        * config/rs6000/rs6000.md (prefixed): New insn attribute for
        prefixed instructions.
        (prefixed_length): New insn attribute for the size of prefixed
        instructions.
        (non_prefixed_length): New insn attribute for the size of
        non-prefixed instructions.
        (pcrel_local_addr): New insn to load up a local PC-relative
        address.
        (pcrel_extern_addr): New insn to load up an external PC-relative
        address.
        (mov<mode>_64bit_dm): Split the alternatives for loading 0.0 to a
        GPR and loading a 128-bit floating point type to a GPR.

2019-09-30  Richard Biener  <rguenther@suse.de>

        * gimple.c (gimple_get_lhs): For PHIs return the result.
        * tree-vectorizer.h (vectorizable_live_operation): Also get the
        SLP instance as argument.
        * tree-vect-loop.c (vect_analyze_loop_operations): Also handle
        double-reduction PHIs with vectorizable_lc_phi.
        (vect_analyze_loop_operations): Adjust.
        (vect_create_epilog_for_reduction): Remove all code not dealing
        with reduction LC PHI or epilogue generation.
        (vectorizable_live_operation): Call vect_create_epilog_for_reduction
        for live stmts of reductions.
        * tree-vect-stmts.c (vectorizable_condition): When !for_reduction
        do not handle defs that are not vect_internal_def.
        (can_vectorize_live_stmts): Adjust.
        (vect_analyze_stmt): When the vectorized stmt defined a value
        used on backedges adjust the backedge uses of vectorized PHIs.

2019-09-30  Martin Jambor  <mjambor@suse.cz>

        PR ipa/91853
        * tree-inline.c (force_value_to_type): New function.
        (setup_one_parameter): Use force_value_to_type to convert type.
        * tree-inline.c (force_value_to_type): Declare.
        * ipa-param-manipulation.c (ipa_param_adjustments::modify_call): Deal
        with register type mismatches.

2019-09-30  Andreas Tobler  <andreast@gcc.gnu.org>

        * config.gcc: Use the secure-plt on FreeBSD 13 and upwards for
        32-bit PowerPC.
        Define TARGET_FREEBSD32_SECURE_PLT for 64-bit PowerPC.
        * config/rs6000/t-freebsd64: Make use of the above define and build
        the 32-bit libraries with secure-plt.

2019-09-30  Jakub Jelinek  <jakub@redhat.com>

        PR target/91931
        * config/i386/i386-expand.c (ix86_expand_adjust_ufix_to_sfix_si): Use
        gen_int_mode instead of GEN_INT.

2019-09-29  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.c (gen_macho_low): Amend to include the mode
        argument.
        (machopic_indirect_data_reference): Amend gen_macho_low call
        to include mode argument
        * config/rs6000/rs6000.c (emit_move): Likewise. Amend a comment.
        * config/rs6000/darwin.md (@macho_low_<mode>): New, replaces
        the macho_high expander and two define_insn entries.

2019-09-29  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/90543
        * optc-save-gen.awk: Fix up printing string option differences.

2019-09-29  Kewen Lin  <linkw@gcc.gnu.org>

        * config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost): Lower
        vec_perm cost to 1 for non-Power7 VSX architectures.

2019-09-29  Kewen Lin  <linkw@gcc.gnu.org>

        * config/rs6000/vsx.md (vec_pack[su]_float_v2di): New define_expand.
        (vec_unpack_[su]fix_trunc_hi_v4sf): Likewise.
        (vec_unpack_[su]fix_trunc_lo_v4sf): Likewise.

2019-09-28  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.c (gen_macho_high): Amend to include the mode
        argument.
        (machopic_indirect_data_reference): Amend gen_macho_high call
        to include mode argument.
        (machopic_legitimize_pic_address): Likewise.
        * config/rs6000/rs6000.c (rs6000_legitimize_address):
        * config/rs6000/darwin.md (@macho_high_<mode>): New, replaces
        the macho_high expander and two define_insn entries.

2019-09-28  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/86805
        * config/sh/sh.c (TARGET_HAVE_SPECULATION_SAFE_VALUE): Define.

2019-09-28  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/80672
        * config/sh/sh.c (parse_validate_atomic_model_option): Use
        std::string::compare instead of std::string::find.

2019-09-27  Maciej W. Rozycki  <macro@wdc.com>

        * configure: Regenerate.

2019-09-27  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/91920
        * gimplify.c (omp_default_clause): Predetermine DECL_IN_CONSTANT_POOL
        variables as shared.

2019-09-27  Iain Sandoe  <iain@sandoe.co.uk>

        * config/rs6000/darwin.md (@macho_correct_pic_<mode>): New,
        replaces the expander and two define_insn entries.
        (@reload_macho_picbase_<mode>): Update gen_macho_correct_pic
        call.
        * config/rs6000/rs6000.md (builtin_setjmp_receiver): Likewise.

2019-09-27  David Malcolm  <dmalcolm@redhat.com>

        * fibonacci_heap.h (fibonacci_heap::empty): Make const.
        (fibonacci_heap::nodes): Likewise.
        (fibonacci_heap::min_key): Likewise.
        (fibonacci_heap::min): Likewise.

2019-09-27  David Malcolm  <dmalcolm@redhat.com>

        * cgraph.c (cgraph_node::get_fun): Make const.
        * cgraph.h (cgraph_node::get_fun): Likewise.

2019-09-27  Jakub Jelinek  <jakub@redhat.com>

        PR target/91919
        * config/arm/arm.md (<US>mlal): Remove SE wrappers around operands
        of SImode MULT.

2019-09-27  Richard Biener  <rguenther@suse.de>

        * tree-vectorizer.h (_stmt_vec_info::reduc_fn): New.
        (STMT_VINFO_REDUC_FN): Likewise.
        * tree-vectorizer.c (vec_info::new_stmt_vec_info): Initialize
        STMT_VINFO_REDUC_FN.
        * tree-vect-loop.c (vect_is_simple_reduction): Fix STMT_VINFO_REDUC_IDX
        for condition reductions.
        (vect_create_epilog_for_reduction): Compute all required state
        from the stmt to be vectorized.
        (vectorizable_reduction): Simplify vect_create_epilog_for_reduction
        invocation and remove then dead code.  For single def-use chains
        record only a single vector stmt.

2019-09-27  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_builtin_class): New enum.
        (AARCH64_BUILTIN_SHIFT, AARCH64_BUILTIN_CLASS): New constants.
        (aarch64_gimple_fold_builtin, aarch64_mangle_builtin_type)
        (aarch64_fold_builtin, aarch64_init_builtins, aarch64_expand_builtin):
        (aarch64_builtin_decl, aarch64_builtin_rsqrt): Delete.
        (aarch64_general_mangle_builtin_type, aarch64_general_init_builtins):
        (aarch64_general_fold_builtin, aarch64_general_gimple_fold_builtin):
        (aarch64_general_expand_builtin, aarch64_general_builtin_decl):
        (aarch64_general_builtin_rsqrt): Declare.
        * config/aarch64/aarch64-builtins.c (aarch64_general_add_builtin):
        New function.
        (aarch64_mangle_builtin_type): Rename to...
        (aarch64_general_mangle_builtin_type): ...this.
        (aarch64_init_fcmla_laneq_builtins, aarch64_init_simd_builtins)
        (aarch64_init_crc32_builtins, aarch64_init_builtin_rsqrt)
        (aarch64_init_pauth_hint_builtins, aarch64_init_tme_builtins): Use
        aarch64_general_add_builtin instead of add_builtin_function.
        (aarch64_init_builtins): Rename to...
        (aarch64_general_init_builtins): ...this.  Use
        aarch64_general_add_builtin instead of add_builtin_function.
        (aarch64_builtin_decl): Rename to...
        (aarch64_general_builtin_decl): ...this and remove the unused
        arguments.
        (aarch64_expand_builtin): Rename to...
        (aarch64_general_expand_builtin): ...this and remove the unused
        arguments.
        (aarch64_builtin_rsqrt): Rename to...
        (aarch64_general_builtin_rsqrt): ...this.
        (aarch64_fold_builtin): Rename to...
        (aarch64_general_fold_builtin): ...this.  Take the function subcode
        and return type as arguments.  Remove the "ignored" argument.
        (aarch64_gimple_fold_builtin): Rename to...
        (aarch64_general_gimple_fold_builtin): ...this.  Take the function
        subcode and gcall as arguments, and return the new function call.
        * config/aarch64/aarch64.c (aarch64_init_builtins)
        (aarch64_fold_builtin, aarch64_gimple_fold_builtin)
        (aarch64_expand_builtin, aarch64_builtin_decl): New functions.
        (aarch64_builtin_reciprocal): Call aarch64_general_builtin_rsqrt
        instead of aarch64_builtin_rsqrt.
        (aarch64_mangle_type): Call aarch64_general_mangle_builtin_type
        instead of aarch64_mangle_builtin_type.

2019-09-27  Richard Sandiford  <richard.sandiford@arm.com>

        * target.def (check_builtin_call): New target hook.
        * doc/tm.texi.in (TARGET_CHECK_BUILTIN_CALL): New @hook.
        * doc/tm.texi: Regenerate.

2019-09-27  Richard Sandiford  <richard.sandiford@arm.com>

        PR tree-optimization/91909
        * tree-vect-loop.c (vect_create_epilog_for_reduction): Take a
        reduc_index parameter.  When handling COND_REDUCTION, make sure
        that the reduction phi operand is in the correct arm of the
        VEC_COND_EXPR.
        (vectorizable_reduction): Pass reduc_index to the above.

2019-09-27  Yuliang Wang  <yuliang.wang@arm.com>

        * config/aarch64/aarch64-sve2.md (aarch64_sve2_sra<mode>):
        New combine pattern.

2019-09-26  Max Filippov  <jcmvbkbc@gmail.com>

        * config/xtensa/xtensa.c (hwloop_optimize): Insert zero overhead
        loop instruction into new basic block before the loop when basic
        block that precedes the loop is empty.

2019-09-26  Jakub Jelinek  <jakub@redhat.com>

        * function.c (gimplify_parameters): Use build_clobber function.
        * tree-ssa.c (execute_update_addresses_taken): Likewise.
        * tree-inline.c (expand_call_inline): Likewise.
        * tree-sra.c (clobber_subtree): Likewise.
        * tree-ssa-ccp.c (insert_clobber_before_stack_restore): Likewise.
        * omp-low.c (lower_rec_simd_input_clauses, lower_rec_input_clauses,
        lower_omp_single, lower_depend_clauses, lower_omp_taskreg,
        lower_omp_target): Likewise.
        * omp-expand.c (expand_omp_for_generic): Likewise.
        * omp-offload.c (ompdevlow_adjust_simt_enter): Likewise.

2019-09-26  Will Schmidt <will_schmidt@vnet.ibm.com>

        * config/rs6000/rs6000-builtin.def: (LVSL, LVSR, LVEBX, LVEHX,
        LVEWX, LVXL, LVXL_V2DF, LVXL_V2DI, LVXL_V4SF, LVXL_V4SI, LVXL_V8HI,
        LVXL_V16QI, LVX, LVX_V1TI, LVX_V2DF, LVX_V2DI, LVX_V4SF, LVX_V4SI,
        LVX_V8HI, LVX_V16QI, LVLX, LVLXL, LVRX, LVRXL, LXSDX, LXVD2X_V1TI,
        LXVD2X_V2DF, LXVD2X_V2DI, LXVDSX, LXVW4X_V4SF, LXVW4X_V4SI,
        LXVW4X_V8HI, LXVW4X_V16QI, LD_ELEMREV_V1TI, LD_ELEMREV_V2DF,
        LD_ELEMREV_V2DI, LD_ELEMREV_V4SF, LD_ELEMREV_V4SI, LD_ELEMREV_V8HI,
        LD_ELEMREV_V16QI): Use the PURE attribute.

2019-09-26  Iain Sandoe  <iain@sandoe.co.uk>

        * config/rs6000/darwin.md: Replace the expanders for
        load_macho_picbase and reload_macho_picbase with use of '@'
        and <mode> in their respective define_insns.
        (nonlocal_goto_receiver): Pass Pmode to gen_reload_macho_picbase.
        * config/rs6000/rs6000-logue.c (rs6000_emit_prologue): Pass
        Pmode to gen_load_macho_picbase.
        * config/rs6000/rs6000.md: Likewise.

2019-09-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91896
        * tree-vect-loop.c (vectorizable_reduction): The single
        def-use cycle optimization cannot apply when there's more
        than one pattern stmt involved.

2019-09-26  Richard Biener  <rguenther@suse.de>

        * tree-vect-loop.c (vect_analyze_loop_operations): Analyze
        loop-closed PHIs that are vect_internal_def.
        (vect_create_epilog_for_reduction): Exit early for nested cycles.
        Simplify.
        (vectorizable_lc_phi): New.
        * tree-vect-stmts.c (vect_analyze_stmt): Call vectorize_lc_phi.
        (vect_transform_stmt): Likewise.
        * tree-vectorizer.h (stmt_vec_info_type): Add lc_phi_info_type.
        (vectorizable_lc_phi): Declare.

2019-09-26  Richard Biener  <rguenther@suse.de>

        * tree-vect-loop.c (vect_analyze_loop_operations): Also call
        vectorizable_reduction for vect_double_reduction_def.
        (vect_transform_loop): Likewise.
        (vect_create_epilog_for_reduction): Move double-reduction
        PHI creation and preheader argument setting of PHIs ...
        (vectorizable_reduction): ... here.  Also process
        vect_double_reduction_def PHIs, creating the vectorized
        PHI nodes, remembering the scalar adjustment computed for
        the epilogue in STMT_VINFO_REDUC_EPILOGUE_ADJUSTMENT.
        Remember the original reduction code in STMT_VINFO_REDUC_CODE.
        * tree-vectorizer.c (vec_info::new_stmt_vec_info):
        Initialize STMT_VINFO_REDUC_CODE.
        * tree-vectorizer.h (_stmt_vec_info::reduc_epilogue_adjustment): New.
        (_stmt_vec_info::reduc_code): Likewise.
        (STMT_VINFO_REDUC_EPILOGUE_ADJUSTMENT): Likewise.
        (STMT_VINFO_REDUC_CODE): Likewise.

2019-09-26  Matt Turner  <mattst88@gmail.com>

        PR driver/69471
        * config/aarch64/aarch64.opt (march=): Add Negative(march=).
        (mtune=): Add Negative(mtune=).
        (mcpu=): Add Negative(mcpu=).
        * config/arm/arm.opt: Likewise.

2019-09-26  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/arm.md (arm_<simd32_op>): New define_insn.
        * config/arm/arm_acle.h (__smlald, __smlaldx, __smlsld, __smlsldx):
        Define.
        * config/arm/arm_acle.h: Define builtins for the above.
        * config/arm/iterators.md (SIMD32_DIMODE): New int_iterator.
        (simd32_op): Handle the above.
        * config/arm/unspecs.md: Define unspecs for the above.

2019-09-26  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/arm.md (arm_<simd32_op>): New define_insn.
        (arm_<sup>xtb16): Likewise.
        (arm_usada8): Likewise.
        * config/arm/arm_acle.h (__qadd8, __qsub8, __shadd8, __shsub8,
        __uhadd8, __uhsub8, __uqadd8, __uqsub8, __qadd16, __qasx, __qsax,
        __qsub16, __shadd16, __shasx, __shsax, __shsub16, __uhadd16, __uhasx,
        __uhsax, __uhsub16, __uqadd16, __uqasx, __uqsax, __uqsub16, __sxtab16,
        __sxtb16, __uxtab16, __uxtb16): Define.
        * config/arm/arm_acle_builtins.def: Define builtins for the above.
        * config/arm/unspecs.md: Define unspecs for the above.
        * config/arm/iterators.md (SIMD32_NOGE_BINOP): New int_iterator.
        (USXTB16): Likewise.
        (simd32_op): New int_attribute.
        (sup): Handle UNSPEC_SXTB16, UNSPEC_UXTB16.
        * doc/sourcebuild.exp (arm_simd32_ok): Document.

2019-09-26  Martin Jambor  <mjambor@suse.cz>

        * ipa-sra.c (verify_splitting_accesses): Fix quoting in a call to
        internal_error.

2019-09-26  Martin Jambor  <mjambor@suse.cz>

        * ipa-sra.c (process_scan_results): Fix continue condition.

2019-09-26  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/91885
        * tree-vectorizer.c (try_vectorize_loop_1): Add
        TODO_update_ssa_only_virtuals similarly to what slp pass does.

2019-09-26  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.c (aarch64_rtx_costs): Use
        aarch64_plus_immediate rather than aarch64_uimm12_shift
        to test for valid PLUS immediates.

2019-09-25  Martin Jambor  <mjambor@suse.cz>

        * tree-sra.c (no_accesses_p): Remove.
        (no_accesses_representant): Likewise.

2019-09-25  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/arm_neon.h (vaba_s8): Use __ in identifiers
        consistenly.
        (vaba_s16): Likewise.
        (vaba_s32): Likewise.
        (vaba_u8): Likewise.
        (vaba_u16): Likewise.
        (vaba_u32): Likewise.
        (vabal_high_s8): Likewise.
        (vabal_high_s16): Likewise.
        (vabal_high_s32): Likewise.
        (vabal_high_u8): Likewise.
        (vabal_high_u16): Likewise.
        (vabal_high_u32): Likewise.
        (vabal_s8): Likewise.
        (vabal_s16): Likewise.
        (vabal_s32): Likewise.
        (vabal_u8): Likewise.
        (vabal_u16): Likewise.
        (vabal_u32): Likewise.
        (vabaq_s8): Likewise.
        (vabaq_s16): Likewise.
        (vabaq_s32): Likewise.
        (vabaq_u8): Likewise.
        (vabaq_u16): Likewise.
        (vabaq_u32): Likewise.
        (vabd_s8): Likewise.
        (vabd_s16): Likewise.
        (vabd_s32): Likewise.
        (vabd_u8): Likewise.
        (vabd_u16): Likewise.
        (vabd_u32): Likewise.
        (vabdl_high_s8): Likewise.
        (vabdl_high_s16): Likewise.
        (vabdl_high_s32): Likewise.
        (vabdl_high_u8): Likewise.
        (vabdl_high_u16): Likewise.
        (vabdl_high_u32): Likewise.
        (vabdl_s8): Likewise.
        (vabdl_s16): Likewise.
        (vabdl_s32): Likewise.
        (vabdl_u8): Likewise.
        (vabdl_u16): Likewise.
        (vabdl_u32): Likewise.
        (vabdq_s8): Likewise.
        (vabdq_s16): Likewise.
        (vabdq_s32): Likewise.
        (vabdq_u8): Likewise.
        (vabdq_u16): Likewise.
        (vabdq_u32): Likewise.
        (vaddlv_s8): Likewise.
        (vaddlv_s16): Likewise.
        (vaddlv_u8): Likewise.
        (vaddlv_u16): Likewise.
        (vaddlvq_s8): Likewise.
        (vaddlvq_s16): Likewise.
        (vaddlvq_s32): Likewise.
        (vaddlvq_u8): Likewise.
        (vaddlvq_u16): Likewise.
        (vaddlvq_u32): Likewise.
        (vcvtx_f32_f64): Likewise.
        (vcvtx_high_f32_f64): Likewise.
        (vcvtxd_f32_f64): Likewise.
        (vmla_n_f32): Likewise.
        (vmla_n_s16): Likewise.
        (vmla_n_s32): Likewise.
        (vmla_n_u16): Likewise.
        (vmla_n_u32): Likewise.
        (vmla_s8): Likewise.
        (vmla_s16): Likewise.
        (vmla_s32): Likewise.
        (vmla_u8): Likewise.
        (vmla_u16): Likewise.
        (vmla_u32): Likewise.
        (vmlal_high_n_s16): Likewise.
        (vmlal_high_n_s32): Likewise.
        (vmlal_high_n_u16): Likewise.
        (vmlal_high_n_u32): Likewise.
        (vmlal_high_s8): Likewise.
        (vmlal_high_s16): Likewise.
        (vmlal_high_s32): Likewise.
        (vmlal_high_u8): Likewise.
        (vmlal_high_u16): Likewise.
        (vmlal_high_u32): Likewise.
        (vmlal_n_s16): Likewise.
        (vmlal_n_s32): Likewise.
        (vmlal_n_u16): Likewise.
        (vmlal_n_u32): Likewise.
        (vmlal_s8): Likewise.
        (vmlal_s16): Likewise.
        (vmlal_s32): Likewise.
        (vmlal_u8): Likewise.
        (vmlal_u16): Likewise.
        (vmlal_u32): Likewise.
        (vmlaq_n_f32): Likewise.
        (vmlaq_n_s16): Likewise.
        (vmlaq_n_s32): Likewise.
        (vmlaq_n_u16): Likewise.
        (vmlaq_n_u32): Likewise.
        (vmlaq_s8): Likewise.
        (vmlaq_s16): Likewise.
        (vmlaq_s32): Likewise.
        (vmlaq_u8): Likewise.
        (vmlaq_u16): Likewise.
        (vmlaq_u32): Likewise.
        (vmls_n_f32): Likewise.
        (vmls_n_s16): Likewise.
        (vmls_n_s32): Likewise.
        (vmls_n_u16): Likewise.
        (vmls_n_u32): Likewise.
        (vmls_s8): Likewise.
        (vmls_s16): Likewise.
        (vmls_s32): Likewise.
        (vmls_u8): Likewise.
        (vmls_u16): Likewise.
        (vmls_u32): Likewise.
        (vmlsl_high_n_s16): Likewise.
        (vmlsl_high_n_s32): Likewise.
        (vmlsl_high_n_u16): Likewise.
        (vmlsl_high_n_u32): Likewise.
        (vmlsl_high_s8): Likewise.
        (vmlsl_high_s16): Likewise.
        (vmlsl_high_s32): Likewise.
        (vmlsl_high_u8): Likewise.
        (vmlsl_high_u16): Likewise.
        (vmlsl_high_u32): Likewise.
        (vmlsl_n_s16): Likewise.
        (vmlsl_n_s32): Likewise.
        (vmlsl_n_u16): Likewise.
        (vmlsl_n_u32): Likewise.
        (vmlsl_s8): Likewise.
        (vmlsl_s16): Likewise.
        (vmlsl_s32): Likewise.
        (vmlsl_u8): Likewise.
        (vmlsl_u16): Likewise.
        (vmlsl_u32): Likewise.
        (vmlsq_n_f32): Likewise.
        (vmlsq_n_s16): Likewise.
        (vmlsq_n_s32): Likewise.
        (vmlsq_n_u16): Likewise.
        (vmlsq_n_u32): Likewise.
        (vmlsq_s8): Likewise.
        (vmlsq_s16): Likewise.
        (vmlsq_s32): Likewise.
        (vmlsq_u8): Likewise.
        (vmlsq_u16): Likewise.
        (vmlsq_u32): Likewise.
        (vmovl_high_s8): Likewise.
        (vmovl_high_s16): Likewise.
        (vmovl_high_s32): Likewise.
        (vmovl_high_u8): Likewise.
        (vmovl_high_u16): Likewise.
        (vmovl_high_u32): Likewise.
        (vmovl_s8): Likewise.
        (vmovl_s16): Likewise.
        (vmovl_s32): Likewise.
        (vmovl_u8): Likewise.
        (vmovl_u16): Likewise.
        (vmovl_u32): Likewise.
        (vmovn_high_s16): Likewise.
        (vmovn_high_s32): Likewise.
        (vmovn_high_s64): Likewise.
        (vmovn_high_u16): Likewise.
        (vmovn_high_u32): Likewise.
        (vmovn_high_u64): Likewise.
        (vmovn_s16): Likewise.
        (vmovn_s32): Likewise.
        (vmovn_s64): Likewise.
        (vmovn_u16): Likewise.
        (vmovn_u32): Likewise.
        (vmovn_u64): Likewise.
        (vmull_high_n_s16): Likewise.
        (vmull_high_n_s32): Likewise.
        (vmull_high_n_u16): Likewise.
        (vmull_high_n_u32): Likewise.
        (vmull_high_p8): Likewise.
        (vmull_high_s8): Likewise.
        (vmull_high_s16): Likewise.
        (vmull_high_s32): Likewise.
        (vmull_high_u8): Likewise.
        (vmull_high_u16): Likewise.
        (vmull_high_u32): Likewise.
        (vmull_n_s16): Likewise.
        (vmull_n_s32): Likewise.
        (vmull_n_u16): Likewise.
        (vmull_n_u32): Likewise.
        (vmull_p8): Likewise.
        (vmull_s8): Likewise.
        (vmull_s16): Likewise.
        (vmull_s32): Likewise.
        (vmull_u8): Likewise.
        (vmull_u16): Likewise.
        (vmull_u32): Likewise.
        (vpadal_s8): Likewise.
        (vpadal_s16): Likewise.
        (vpadal_s32): Likewise.
        (vpadal_u8): Likewise.
        (vpadal_u16): Likewise.
        (vpadal_u32): Likewise.
        (vpadalq_s8): Likewise.
        (vpadalq_s16): Likewise.
        (vpadalq_s32): Likewise.
        (vpadalq_u8): Likewise.
        (vpadalq_u16): Likewise.
        (vpadalq_u32): Likewise.
        (vpaddl_s8): Likewise.
        (vpaddl_s16): Likewise.
        (vpaddl_s32): Likewise.
        (vpaddl_u8): Likewise.
        (vpaddl_u16): Likewise.
        (vpaddl_u32): Likewise.
        (vpaddlq_s8): Likewise.
        (vpaddlq_s16): Likewise.
        (vpaddlq_s32): Likewise.
        (vpaddlq_u8): Likewise.
        (vpaddlq_u16): Likewise.
        (vpaddlq_u32): Likewise.
        (vpaddq_s8): Likewise.
        (vpaddq_s16): Likewise.
        (vpaddq_s32): Likewise.
        (vpaddq_s64): Likewise.
        (vpaddq_u8): Likewise.
        (vpaddq_u16): Likewise.
        (vpaddq_u32): Likewise.
        (vpaddq_u64): Likewise.
        (vqdmulh_n_s16): Likewise.
        (vqdmulh_n_s32): Likewise.
        (vqdmulhq_n_s16): Likewise.
        (vqdmulhq_n_s32): Likewise.
        (vqmovn_high_s16): Likewise.
        (vqmovn_high_s32): Likewise.
        (vqmovn_high_s64): Likewise.
        (vqmovn_high_u16): Likewise.
        (vqmovn_high_u32): Likewise.
        (vqmovn_high_u64): Likewise.
        (vqmovun_high_s16): Likewise.
        (vqmovun_high_s32): Likewise.
        (vqmovun_high_s64): Likewise.
        (vqrdmulh_n_s16): Likewise.
        (vqrdmulh_n_s32): Likewise.
        (vqrdmulhq_n_s16): Likewise.
        (vqrdmulhq_n_s32): Likewise.
        (vrsqrte_u32): Likewise.
        (vrsqrteq_u32): Likewise.
        (vtst_p8): Likewise.
        (vtst_p16): Likewise.
        (vtst_p64): Likewise.
        (vtstq_p8): Likewise.
        (vtstq_p16): Likewise.
        (vtstq_p64): Likewise.
        (vaddlv_s32): Likewise.
        (vaddlv_u32): Likewise.
        (vqtbl1_p8): Likewise.
        (vqtbl1_s8): Likewise.
        (vqtbl1_u8): Likewise.
        (vqtbl1q_p8): Likewise.
        (vqtbl1q_s8): Likewise.
        (vqtbl1q_u8): Likewise.
        (vqtbx1_s8): Likewise.
        (vqtbx1_u8): Likewise.
        (vqtbx1_p8): Likewise.
        (vqtbx1q_s8): Likewise.
        (vqtbx1q_u8): Likewise.
        (vqtbx1q_p8): Likewise.
        (vtbl1_s8): Likewise.
        (vtbl1_u8): Likewise.
        (vtbl1_p8): Likewise.
        (vtbl2_s8): Likewise.
        (vtbl2_u8): Likewise.
        (vtbl2_p8): Likewise.
        (vtbl3_s8): Likewise.
        (vtbl3_u8): Likewise.
        (vtbl3_p8): Likewise.
        (vtbl4_s8): Likewise.
        (vtbl4_u8): Likewise.
        (vtbl4_p8): Likewise.
        (vtbx2_s8): Likewise.
        (vtbx2_u8): Likewise.
        (vtbx2_p8): Likewise.
        (vld1_f32): Likewise.
        (vld1_f64): Likewise.
        (vld1_p8): Likewise.
        (vld1_p16): Likewise.
        (vld1_p64): Likewise.
        (vld1_s8): Likewise.
        (vld1_s16): Likewise.
        (vld1_s32): Likewise.
        (vld1_s64): Likewise.
        (vld1_u8): Likewise.
        (vld1_u16): Likewise.
        (vld1_u32): Likewise.
        (vld1_u64): Likewise.
        (vld1q_f32): Likewise.
        (vld1q_f64): Likewise.
        (vld1q_p8): Likewise.
        (vld1q_p16): Likewise.
        (vld1q_p64): Likewise.
        (vld1q_s8): Likewise.
        (vld1q_s16): Likewise.
        (vld1q_s32): Likewise.
        (vld1q_s64): Likewise.
        (vld1q_u8): Likewise.
        (vld1q_u16): Likewise.
        (vld1q_u32): Likewise.
        (vld1q_u64): Likewise.
        (vpmax_s8): Likewise.
        (vpmax_s16): Likewise.
        (vpmax_s32): Likewise.
        (vpmax_u8): Likewise.
        (vpmax_u16): Likewise.
        (vpmax_u32): Likewise.
        (vpmaxq_s8): Likewise.
        (vpmaxq_s16): Likewise.
        (vpmaxq_s32): Likewise.
        (vpmaxq_u8): Likewise.
        (vpmaxq_u16): Likewise.
        (vpmaxq_u32): Likewise.
        (vpmax_f32): Likewise.
        (vpmaxq_f32): Likewise.
        (vpmaxq_f64): Likewise.
        (vpmaxqd_f64): Likewise.
        (vpmaxs_f32): Likewise.
        (vpmaxnm_f32): Likewise.
        (vpmaxnmq_f32): Likewise.
        (vpmaxnmq_f64): Likewise.
        (vpmaxnmqd_f64): Likewise.
        (vpmaxnms_f32): Likewise.
        (vpmin_s8): Likewise.
        (vpmin_s16): Likewise.
        (vpmin_s32): Likewise.
        (vpmin_u8): Likewise.
        (vpmin_u16): Likewise.
        (vpmin_u32): Likewise.
        (vpminq_s8): Likewise.
        (vpminq_s16): Likewise.
        (vpminq_s32): Likewise.
        (vpminq_u8): Likewise.
        (vpminq_u16): Likewise.
        (vpminq_u32): Likewise.
        (vpmin_f32): Likewise.
        (vpminq_f32): Likewise.
        (vpminq_f64): Likewise.
        (vpminqd_f64): Likewise.
        (vpmins_f32): Likewise.
        (vpminnm_f32): Likewise.
        (vpminnmq_f32): Likewise.
        (vpminnmq_f64): Likewise.
        (vpminnmqd_f64): Likewise.
        (vpminnms_f32): Likewise.
        (vmla_f32): Likewise.
        (vmlaq_f32): Likewise.
        (vmlaq_f64): Likewise.
        (vmls_f32): Likewise.
        (vmlsq_f32): Likewise.
        (vmlsq_f64): Likewise.
        (vqtbl2_s8): Likewise.
        (vqtbl2_u8): Likewise.
        (vqtbl2_p8): Likewise.
        (vqtbl2q_s8): Likewise.
        (vqtbl2q_u8): Likewise.
        (vqtbl2q_p8): Likewise.
        (vqtbl3_s8): Likewise.
        (vqtbl3_u8): Likewise.
        (vqtbl3_p8): Likewise.
        (vqtbl3q_s8): Likewise.
        (vqtbl3q_u8): Likewise.
        (vqtbl3q_p8): Likewise.
        (vqtbl4_s8): Likewise.
        (vqtbl4_u8): Likewise.
        (vqtbl4_p8): Likewise.
        (vqtbl4q_s8): Likewise.
        (vqtbl4q_u8): Likewise.
        (vqtbl4q_p8): Likewise.
        (vqtbx2_s8): Likewise.
        (vqtbx2_u8): Likewise.
        (vqtbx2_p8): Likewise.
        (vqtbx2q_s8): Likewise.
        (vqtbx2q_u8): Likewise.
        (vqtbx2q_p8): Likewise.
        (vqtbx3_s8): Likewise.
        (vqtbx3_u8): Likewise.
        (vqtbx3_p8): Likewise.
        (vqtbx3q_s8): Likewise.
        (vqtbx3q_u8): Likewise.
        (vqtbx3q_p8): Likewise.
        (vqtbx4_s8): Likewise.
        (vqtbx4_u8): Likewise.
        (vqtbx4_p8): Likewise.
        (vqtbx4q_s8): Likewise.
        (vqtbx4q_u8): Likewise.
        (vqtbx4q_p8): Likewise.
        (vrev16_p8): Likewise.
        (vrev16_s8): Likewise.
        (vrev16_u8): Likewise.
        (vrev16q_p8): Likewise.
        (vrev16q_s8): Likewise.
        (vrev16q_u8): Likewise.
        (vrev32_p8): Likewise.
        (vrev32_p16): Likewise.
        (vrev32_s8): Likewise.
        (vrev32_s16): Likewise.
        (vrev32_u8): Likewise.
        (vrev32_u16): Likewise.
        (vrev32q_p8): Likewise.
        (vrev32q_p16): Likewise.
        (vrev32q_s8): Likewise.
        (vrev32q_s16): Likewise.
        (vrev32q_u8): Likewise.
        (vrev32q_u16): Likewise.
        (vrev64_f32): Likewise.
        (vrev64_p8): Likewise.
        (vrev64_p16): Likewise.
        (vrev64_s8): Likewise.
        (vrev64_s16): Likewise.
        (vrev64_s32): Likewise.
        (vrev64_u8): Likewise.
        (vrev64_u16): Likewise.
        (vrev64_u32): Likewise.
        (vrev64q_f32): Likewise.
        (vrev64q_p8): Likewise.
        (vrev64q_p16): Likewise.
        (vrev64q_s8): Likewise.
        (vrev64q_s16): Likewise.
        (vrev64q_s32): Likewise.
        (vrev64q_u8): Likewise.
        (vrev64q_u16): Likewise.
        (vrev64q_u32): Likewise.
        (vsha1cq_u32): Likewise.
        (vsha1mq_u32): Likewise.
        (vsha1pq_u32): Likewise.
        (vsha1h_u32): Likewise.
        (vsha1su0q_u32): Likewise.
        (vsha1su1q_u32): Likewise.
        (vsha256hq_u32): Likewise.
        (vsha256h2q_u32): Likewise.
        (vsha256su0q_u32): Likewise.
        (vsha256su1q_u32): Likewise.
        (vmull_p64): Likewise.
        (vmull_high_p64): Likewise.
        (vsqrt_f32): Likewise.
        (vsqrtq_f32): Likewise.
        (vsqrt_f64): Likewise.
        (vsqrtq_f64): Likewise.
        (vst1_f32): Likewise.
        (vst1_f64): Likewise.
        (vst1_p8): Likewise.
        (vst1_p16): Likewise.
        (vst1_p64): Likewise.
        (vst1_s8): Likewise.
        (vst1_s16): Likewise.
        (vst1_s32): Likewise.
        (vst1_s64): Likewise.
        (vst1_u8): Likewise.
        (vst1_u16): Likewise.
        (vst1_u32): Likewise.
        (vst1_u64): Likewise.
        (vst1q_f32): Likewise.
        (vst1q_f64): Likewise.
        (vst1q_p8): Likewise.
        (vst1q_p16): Likewise.
        (vst1q_p64): Likewise.
        (vst1q_s8): Likewise.
        (vst1q_s16): Likewise.
        (vst1q_s32): Likewise.
        (vst1q_s64): Likewise.
        (vst1q_u8): Likewise.
        (vst1q_u16): Likewise.
        (vst1q_u32): Likewise.
        (vst1q_u64): Likewise.
        (vst1_s64_x2): Likewise.
        (vst1_u64_x2): Likewise.
        (vst1_f64_x2): Likewise.
        (vst1_s8_x2): Likewise.
        (vst1_p8_x2): Likewise.
        (vst1_s16_x2): Likewise.
        (vst1_p16_x2): Likewise.
        (vst1_s32_x2): Likewise.
        (vst1_u8_x2): Likewise.
        (vst1_u16_x2): Likewise.
        (vst1_u32_x2): Likewise.
        (vst1_f16_x2): Likewise.
        (vst1_f32_x2): Likewise.
        (vst1_p64_x2): Likewise.
        (vst1q_s8_x2): Likewise.
        (vst1q_p8_x2): Likewise.
        (vst1q_s16_x2): Likewise.
        (vst1q_p16_x2): Likewise.
        (vst1q_s32_x2): Likewise.
        (vst1q_s64_x2): Likewise.
        (vst1q_u8_x2): Likewise.
        (vst1q_u16_x2): Likewise.
        (vst1q_u32_x2): Likewise.
        (vst1q_u64_x2): Likewise.
        (vst1q_f16_x2): Likewise.
        (vst1q_f32_x2): Likewise.
        (vst1q_f64_x2): Likewise.
        (vst1q_p64_x2): Likewise.
        (vst1_s64_x3): Likewise.
        (vst1_u64_x3): Likewise.
        (vst1_f64_x3): Likewise.
        (vst1_s8_x3): Likewise.
        (vst1_p8_x3): Likewise.
        (vst1_s16_x3): Likewise.
        (vst1_p16_x3): Likewise.
        (vst1_s32_x3): Likewise.
        (vst1_u8_x3): Likewise.
        (vst1_u16_x3): Likewise.
        (vst1_u32_x3): Likewise.
        (vst1_f16_x3): Likewise.
        (vst1_f32_x3): Likewise.
        (vst1_p64_x3): Likewise.
        (vst1q_s8_x3): Likewise.
        (vst1q_p8_x3): Likewise.
        (vst1q_s16_x3): Likewise.
        (vst1q_p16_x3): Likewise.
        (vst1q_s32_x3): Likewise.
        (vst1q_s64_x3): Likewise.
        (vst1q_u8_x3): Likewise.
        (vst1q_u16_x3): Likewise.
        (vst1q_u32_x3): Likewise.
        (vst1q_u64_x3): Likewise.
        (vst1q_f16_x3): Likewise.
        (vst1q_f32_x3): Likewise.
        (vst1q_f64_x3): Likewise.
        (vst1q_p64_x3): Likewise.
        (vst2_s64): Likewise.
        (vst2_u64): Likewise.
        (vst2_f64): Likewise.
        (vst2_s8): Likewise.
        (vst2_p8): Likewise.
        (vst2_s16): Likewise.
        (vst2_p16): Likewise.
        (vst2_s32): Likewise.
        (vst2_u8): Likewise.
        (vst2_u16): Likewise.
        (vst2_u32): Likewise.
        (vst2_f16): Likewise.
        (vst2_f32): Likewise.
        (vst2_p64): Likewise.
        (vst2q_s8): Likewise.
        (vst2q_p8): Likewise.
        (vst2q_s16): Likewise.
        (vst2q_p16): Likewise.
        (vst2q_s32): Likewise.
        (vst2q_s64): Likewise.
        (vst2q_u8): Likewise.
        (vst2q_u16): Likewise.
        (vst2q_u32): Likewise.
        (vst2q_u64): Likewise.
        (vst2q_f16): Likewise.
        (vst2q_f32): Likewise.
        (vst2q_f64): Likewise.
        (vst2q_p64): Likewise.
        (vst3_s64): Likewise.
        (vst3_u64): Likewise.
        (vst3_f64): Likewise.
        (vst3_s8): Likewise.
        (vst3_p8): Likewise.
        (vst3_s16): Likewise.
        (vst3_p16): Likewise.
        (vst3_s32): Likewise.
        (vst3_u8): Likewise.
        (vst3_u16): Likewise.
        (vst3_u32): Likewise.
        (vst3_f16): Likewise.
        (vst3_f32): Likewise.
        (vst3_p64): Likewise.
        (vst3q_s8): Likewise.
        (vst3q_p8): Likewise.
        (vst3q_s16): Likewise.
        (vst3q_p16): Likewise.
        (vst3q_s32): Likewise.
        (vst3q_s64): Likewise.
        (vst3q_u8): Likewise.
        (vst3q_u16): Likewise.
        (vst3q_u32): Likewise.
        (vst3q_u64): Likewise.
        (vst3q_f16): Likewise.
        (vst3q_f32): Likewise.
        (vst3q_f64): Likewise.
        (vst3q_p64): Likewise.
        (vst4_s64): Likewise.
        (vst4_u64): Likewise.
        (vst4_f64): Likewise.
        (vst4_s8): Likewise.
        (vst4_p8): Likewise.
        (vst4_s16): Likewise.
        (vst4_p16): Likewise.
        (vst4_s32): Likewise.
        (vst4_u8): Likewise.
        (vst4_u16): Likewise.
        (vst4_u32): Likewise.
        (vst4_f16): Likewise.
        (vst4_f32): Likewise.
        (vst4_p64): Likewise.
        (vst4q_s8): Likewise.
        (vst4q_p8): Likewise.
        (vst4q_s16): Likewise.
        (vst4q_p16): Likewise.
        (vst4q_s32): Likewise.
        (vst4q_s64): Likewise.
        (vst4q_u8): Likewise.
        (vst4q_u16): Likewise.
        (vst4q_u32): Likewise.
        (vst4q_u64): Likewise.
        (vst4q_f16): Likewise.
        (vst4q_f32): Likewise.
        (vst4q_f64): Likewise.
        (vst4q_p64): Likewise.
        (vtbx4_s8): Likewise.
        (vtbx4_u8): Likewise.
        (vtbx4_p8): Likewise.
        (vtrn_f32): Likewise.
        (vtrn_p8): Likewise.
        (vtrn_p16): Likewise.
        (vtrn_s8): Likewise.
        (vtrn_s16): Likewise.
        (vtrn_s32): Likewise.
        (vtrn_u8): Likewise.
        (vtrn_u16): Likewise.
        (vtrn_u32): Likewise.
        (vtrnq_f32): Likewise.
        (vtrnq_p8): Likewise.
        (vtrnq_p16): Likewise.
        (vtrnq_s8): Likewise.
        (vtrnq_s16): Likewise.
        (vtrnq_s32): Likewise.
        (vtrnq_u8): Likewise.
        (vtrnq_u16): Likewise.
        (vtrnq_u32): Likewise.
        (vrsqrte_f16): Likewise.
        (vrsqrteq_f16): Likewise.
        (vsqrt_f16): Likewise.
        (vsqrtq_f16): Likewise.
        (vabd_f16): Likewise.
        (vabdq_f16): Likewise.
        (vpadd_f16): Likewise.
        (vpaddq_f16): Likewise.
        (vpmax_f16): Likewise.
        (vpmaxq_f16): Likewise.
        (vpmaxnm_f16): Likewise.
        (vpmaxnmq_f16): Likewise.
        (vpmin_f16): Likewise.
        (vpminq_f16): Likewise.
        (vpminnm_f16): Likewise.
        (vpminnmq_f16): Likewise.
        (vrsqrts_f16): Likewise.
        (vrsqrtsq_f16): Likewise.

2019-09-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91896
        * tree-vect-loop.c (vectorizable_reduction): The single
        def-use cycle optimization cannot apply when there's more
        than one pattern stmt involved.

2019-09-24  Iain Sandoe  <iain@sandoe.co.uk>

        * config/rs6000/rs6000.md (load_macho_picbase_<mode>): New, using
        the 'P' mode iterator, replacing the (removed) SI and DI variants.
        (reload_macho_picbase_<mode>): Likewise.

2019-09-24  Iain Sandoe  <iain@sandoe.co.uk>

        * config/rs6000/rs6000.md: Move darwin.md include until
        after the definition of the mode iterators.

2019-09-23  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/91570
        * tree-ssa-strlen.c (get_range_strlen_dynamic): Handle null and
        non-constant minlen, maxlen and maxbound.

2019-09-24  Richard Biener  <rguenther@suse.de>

        * tree-vectorizer.h (_stmt_vec_info::const_cond_reduc_code):
        Rename to...
        (_stmt_vec_info::cond_reduc_code): ... this.
        (_stmt_vec_info::induc_cond_initial_val): Add.
        (STMT_VINFO_VEC_CONST_COND_REDUC_CODE): Rename to...
        (STMT_VINFO_VEC_COND_REDUC_CODE): ... this.
        (STMT_VINFO_VEC_INDUC_COND_INITIAL_VAL): Add.
        * tree-vectorizer.c (vec_info::new_stmt_vec_info): Adjust.
        * tree-vect-loop.c (get_initial_def_for_reduction): Pass in
        the reduction code.
        (vect_create_epilog_for_reduction): Drop special
        induction condition reduction params, pass in reduction code
        and simplify.
        (vectorizable_reduction): Perform condition reduction kind
        selection only at analysis time.  Adjust passing on state.

2019-09-24  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.md (mov<mode>): Don't call
        aarch64_split_dimode_const_store on volatile MEM.

2019-09-24  Stamatis Markianos-Wright  <stam.markianos-wright@arm.com>

        * config/aarch64/aarch64-option-extensions.def (fp16fml):
        Update hwcap string for fp16fml.

2019-09-24  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/91866
        * match.pd (((T)(A)) + CST -> (T)(A + CST)): Formatting fix.
        (((T)(A + CST1)) + CST2 -> (T)(A) + (T)CST1 + CST2): New optimization.

2019-09-24  Martin Liska  <mliska@suse.cz>

        * cfgexpand.c (gimple_assign_rhs_to_tree): Use switch statement
        instead of if-elseif-elseif-...
        * gimple-expr.c (extract_ops_from_tree): Likewise.
        * gimple.c (get_gimple_rhs_num_ops): Likewise.
        * tree-ssa-forwprop.c (rhs_to_tree): Likewise.

2019-09-24  Martin Jambor  <mjambor@suse.cz>

        PR ipa/91831
        * ipa-param-manipulation.c (carry_over_param): Make a method of
        ipa_param_body_adjustments, remove now unnecessary argument.  Also copy
        in case of a context mismatch.
        (ipa_param_body_adjustments::common_initialization): Adjust call to
        carry_over_param.
        * ipa-param-manipulation.h (class ipa_param_body_adjustments): Add
        private method carry_over_param.

2019-09-24  Martin Jambor  <mjambor@suse.cz>

        PR ipa/91832
        * ipa-sra.c (scan_expr_access): Check that offset is non-negative.

2019-09-24  Richard Biener  <rguenther@suse.de>

        * tree-ssa-sccvn.c (vn_reference_lookup_3): Valueize MEM_REF
        base.

2019-09-23  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/t-arm (arm-builtins.o): Add dependency on
        arm_acle_builtins.def.

2019-09-23  Richard Sandiford  <richard.sandiford@arm.com>

        PR target/91823
        * config/rs6000/altivec.md (altivec_copysign_v4sf3): Generate
        canonical CONST_INTs.  Use gen_rtvec.

2019-09-23  Richard Biener  <rguenther@suse.de>

        * tree-vect-loop.c (get_initial_def_for_reduction): Simplify,
        avoid adjusting by + 0 or * 1.
        (vect_create_epilog_for_reduction): Get reduction code only
        when necessary.  Deal with adjustment_def only when necessary.

2019-09-23  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/atomics.md (aarch64_store_exclusive_pair): Fix
        memmodel index.

2019-09-23  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR ipa/91835
        * lto-section-in.c (lto_section_name): Use "ipa_sra" instead of
        "ipa-sra".

2019-09-22  Iain Sandoe  <iain@sandoe.co.uk>

        * config/rs6000/rs6000.c (machopic_output_stub): Remove dead
        code.  Merge code blocks with common conditionals. Use declared
        macro instead of a magic number for PIC level.

2019-09-21  Martin Sebor  <msebor@redhat.com>

        PR middle-end/91830
        * gcc/gimple-ssa-warn-restrict.c (builtin_memref::set_base_and_offset):
        Simplify computation of the offset of the referenced subobject.

2019-09-21  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.c (machopic_legitimize_pic_address): Check
        for lra not reload.

2019-09-21  Richard Sandiford  <richard.sandiford@arm.com>

        * ira-conflicts.c (can_use_same_reg_p): New function.
        (process_reg_shuffles): Take an insn parameter.  Ignore cases
        in which input operand op_num could seemingly never be allocated
        to the same register as the destination.
        (add_insn_allocno_copies): Update call to process_reg_shuffles.

2019-09-21  Richard Sandiford  <richard.sandiford@arm.com>

        * simplify-rtx.c (neg_const_int): Replace with...
        (neg_poly_int_rtx): ...this new function.
        (simplify_binary_operation_1): Extend (minus x C) -> (plus X -C)
        to all CONST_SCALAR_INTs and to CONST_POLY_INT.
        (simplify_plus_minus): Likewise for constant terms here.

2019-09-20  Jonas Pfeil  <jonas.pfeil@uli-ulm.de>

        * config/microblaze/microblaze.h (ASM_OUTPUT_SKIP): Use
        HOST_WIDE_PRINT_UNSIGNED.

2019-09-20  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/pa.c (pa_trampoline_init): Remove spurious extended
        character.

2019-09-20  Maya Rashish  <coypu@sdf.org>

        PR target/86811
        * config/vax/vax.c (TARGET_HAVE_SPECULATION_SAFE_VALUE):
        Define to speculation_safe_value_not_needed.

2019-09-20  Richard Biener  <rguenther@suse.de>
        Uros Bizjak  <ubizjak@gmail.com>

        PR target/91814
        * config/i386/i386-features.c (gen_gpr_to_xmm_move_src): Revert
        previous change.
        (general_scalar_chain::convert_op): Force not suitable memory
        operands to a register.

2019-09-20  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91821
        * tree-vect-loop.c (check_reduction_path): Check we can compute
        reduc_idx.
        (vect_is_simple_reduction): Set STMT_VINFO_REDUC_IDX.
        * tree-vect-patterns.c (vect_reassociating_reduction_p): Return
        operands in canonical order.
        * tree-vectorizer.c (vec_info::new_stmt_vec_info): Initialize
        STMT_VINFO_REDUC_IDX.
        * tree-vectorizer.h (_stmt_vec_info::reduc_idx): New.
        (STMT_VINFO_REDUC_IDX): Likewise.

2019-09-20  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/91269
        * config/sparc/sparc.h (HARD_REGNO_CALLER_SAVE_MODE): Define.

2019-09-20  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91822
        * tree-vectorizer.h (vectorizable_condition): Restore for_reduction
        parameter.
        * tree-vect-loop.c (vectorizable_reduction): Adjust asserts
        for reduc_index in nested cycles, adjust vectorizable_condition
        calls.
        * tree-vect-stmts.c (vectorizable_condition): Restore for_reduction
        parameter.
        (vect_analyze_stmt): Adjust.
        (vect_transform_stmt): Likewise.

2019-09-20  Richard Biener  <rguenther@suse.de>

        PR target/91767
        * config/i386/i386-features.c (general_scalar_chain::convert_registers):
        Ensure there's a sequence point between allocating the new register
        and passing a reference to a reg via regno_reg_rtx.

2019-09-20  Martin Jambor  <mjambor@suse.cz>

        * coretypes.h (cgraph_edge): Declare.
        * ipa-param-manipulation.c: Rewrite.
        * ipa-param-manipulation.h: Likewise.
        * Makefile.in (GTFILES): Added ipa-param-manipulation.h and ipa-sra.c.
        (OBJS): Added ipa-sra.o.
        * cgraph.h (ipa_replace_map): Removed fields old_tree, replace_p
        and ref_p, added fields param_adjustments and performed_splits.
        (struct cgraph_clone_info): Remove ags_to_skip and
        combined_args_to_skip, new field param_adjustments.
        (cgraph_node::create_clone): Changed parameters to use
        ipa_param_adjustments.
        (cgraph_node::create_virtual_clone): Likewise.
        (cgraph_node::create_virtual_clone_with_body): Likewise.
        (tree_function_versioning): Likewise.
        (cgraph_build_function_type_skip_args): Removed.
        * cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Convert to
        using ipa_param_adjustments.
        (clone_of_p): Likewise.
        * cgraphclones.c (cgraph_build_function_type_skip_args): Removed.
        (build_function_decl_skip_args): Likewise.
        (duplicate_thunk_for_node): Adjust parameters using
        ipa_param_body_adjustments, copy param_adjustments instead of
        args_to_skip.
        (cgraph_node::create_clone): Convert to using ipa_param_adjustments.
        (cgraph_node::create_virtual_clone): Likewise.
        (cgraph_node::create_version_clone_with_body): Likewise.
        (cgraph_materialize_clone): Likewise.
        (symbol_table::materialize_all_clones): Likewise.
        * ipa-fnsummary.c (ipa_fn_summary_t::duplicate): Simplify
        ipa_replace_map check.
        * ipa-cp.c (get_replacement_map): Do not initialize removed fields.
        (initialize_node_lattices): Make aware that some parameters might have
        already been removed.
        (want_remove_some_param_p): New function.
        (create_specialized_node): Convert to using ipa_param_adjustments and
        deal with possibly pre-existing adjustments.
        * lto-cgraph.c (output_cgraph_opt_summary_p): Likewise.
        (output_node_opt_summary): Do not stream removed fields.  Stream
        parameter adjustments instead of argumetns to skip.
        (input_node_opt_summary): Likewise.
        (input_node_opt_summary): Likewise.
        * lto-section-in.c (lto_section_name): Added ipa-sra section.
        * lto-streamer.h (lto_section_type): Likewise.
        * tree-inline.h (copy_body_data): New fields killed_new_ssa_names and
        param_body_adjs.
        (copy_decl_to_var): Declare.
        * tree-inline.c (update_clone_info): Do not remap old_tree.
        (remap_gimple_stmt): Use ipa_param_body_adjustments to modify gimple
        statements, walk all extra generated statements and remap their
        operands.
        (redirect_all_calls): Add killed SSA names to a hash set.
        (remap_ssa_name): Do not remap killed SSA names.
        (copy_arguments_for_versioning): Renames to copy_arguments_nochange,
        half of functionality moved to ipa_param_body_adjustments.
        (copy_decl_to_var): Make exported.
        (copy_body): Destroy killed_new_ssa_names hash set.
        (expand_call_inline): Remap performed splits.
        (update_clone_info): Likewise.
        (tree_function_versioning): Simplify tree_map processing.  Updated to
        accept ipa_param_adjustments and use ipa_param_body_adjustments.
        * omp-simd-clone.c (simd_clone_vector_of_formal_parm_types): Adjust
        for the new interface.
        (simd_clone_clauses_extract): Likewise, make args an auto_vec.
        (simd_clone_compute_base_data_type): Likewise.
        (simd_clone_init_simd_arrays): Adjust for the new interface.
        (simd_clone_adjust_argument_types): Likewise.
        (struct modify_stmt_info): Likewise.
        (ipa_simd_modify_stmt_ops): Likewise.
        (ipa_simd_modify_function_body): Likewise.
        (simd_clone_adjust): Likewise.
        * tree-sra.c: Removed IPA-SRA.  Include tree-sra.h.
        (type_internals_preclude_sra_p): Make public.
        * tree-sra.h: New file.
        * ipa-inline-transform.c (save_inline_function_body): Update to
        refelct new tree_function_versioning signature.
        * ipa-prop.c (adjust_agg_replacement_values): Use a helper from
        ipa_param_adjustments to get current parameter indices.
        (ipcp_modif_dom_walker::before_dom_children): Likewise.
        (ipcp_update_bits): Likewise.
        (ipcp_update_vr): Likewise.
        * ipa-split.c (split_function): Convert to using ipa_param_adjustments.
        * ipa-sra.c: New file.
        * multiple_target.c (create_target_clone): Update to reflet new type
        of create_version_clone_with_body.
        * trans-mem.c (ipa_tm_create_version): Update to reflect new type of
        tree_function_versioning.
        (modify_function): Update to reflect new type of
        tree_function_versioning.
        * params.def (PARAM_IPA_SRA_MAX_REPLACEMENTS): New.
        * passes.def: Remove old IPA-SRA and add new one.
        * tree-pass.h (make_pass_early_ipa_sra): Remove declaration.
        (make_pass_ipa_sra): Declare.
        * dbgcnt.def: Remove eipa_sra.  Added ipa_sra_params and
        ipa_sra_retvalues.
        * doc/invoke.texi (ipa-sra-max-replacements): New.

2019-09-19  Martin Sebor  <msebor@redhat.com>

        PR middle-end/91631
        * builtins.c (component_size): Correct trailing array computation,
        rename to component_ref_size and move...
        (compute_objsize): Adjust.
        * gimple-ssa-warn-restrict.c (builtin_memref::refsize): New member.
        (builtin_access::strict): Do not consider memmove.
        (builtin_access::write_off): New function.
        (builtin_memref::builtin_memref): Initialize refsize.
        (builtin_memref::set_base_and_offset): Adjust refoff and compute
        refsize.
        (builtin_memref::offset_out_of_bounds): Use ooboff input values.
        Handle refsize.
        (builtin_access::builtin_access): Initialize dstoff to destination
        refeence offset here instead of in maybe_diag_overlap.  Adjust
        referencess even to unrelated objects.  Adjust sizrange of bounded
        string functions to reflect bound.  For strcat, adjust destination
        sizrange by that of source.
        (builtin_access::strcat_overlap):  Adjust offsets and sizes
        to reflect the increase in destination sizrange above.
        (builtin_access::overlap): Do not set dstoff here but instead
        in builtin_access::builtin_access.
        (check_bounds_or_overlap): Use builtin_access::write_off.
        (maybe_diag_access_bounds): Add argument.  Add informational notes.
        (dump_builtin_memref, dump_builtin_access): New functions.
        * tree.c (component_ref_size): ...to here.
        * tree.h (component_ref_size): Declare.
        * tree-ssa-strlen (handle_builtin_strcat): Include the terminating
        nul in the size of the source string.

2019-09-19  Lewis Hyatt  <lhyatt@gmail.com>

        PR c/67224
        * doc/cpp.texi: Document support for extended characters in
        identifiers.
        * doc/cppopts.texi: Likewise.

2019-09-19  Richard Biener  <rguenther@suse.de>

        * tree-vect-loop.c (vect_is_slp_reduction): Remove.
        (check_reduction_path): New overload having the path as result.
        (vect_is_simple_reduction): From the detected reduction
        path build a SLP reduction chain if possible.

2019-09-19  Richard Biener  <rguenther@suse.de>

        PR target/91814
        * config/i386/i386-features.c (gen_gpr_to_xmm_move_src):
        Force operand to a register if it isn't nonimmediate_operand.

2019-09-19  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/arm/arm.md (<logical_op>di3): Use <optab> and <CODE>.
        * config/arm/iterators.md (optab): Add and, ior, xor entries.
        (logical_op): Remove code attribute.
        (logical_OP): Likewise.

2019-09-19  Martin Liska  <mliska@suse.cz>

        * ipa-icf.c (sort_congruence_class_groups_by_decl_uid):
        Use proper casting.

2019-09-19  Richard Henderson  <richard.henderson@linaro.org>

        * config/aarch64/aarch64.c (aarch64_print_operand): Allow integer
        registers with %R.

        * config/aarch64/aarch64.c (aarch64_gen_compare_reg): Add support
        for NE comparison of TImode values.
        (aarch64_emit_load_exclusive): Add support for TImode.
        (aarch64_emit_store_exclusive): Likewise.
        (aarch64_split_compare_and_swap): Disable strong_zero_p for TImode.
        * config/aarch64/atomics.md (@atomic_compare_and_swap<ALLI_TI>):
        Change iterator from ALLI to ALLI_TI.
        (@atomic_compare_and_swap<JUST_TI>): New.
        (@atomic_compare_and_swap<JUST_TI>_lse): New.
        (aarch64_load_exclusive_pair): New.
        (aarch64_store_exclusive_pair): New.
        * config/aarch64/iterators.md (JUST_TI): New.

        * config/aarch64/aarch64 (aarch64_split_compare_and_swap): Disable
        strong_zero_p for aarch64_track_speculation; unify some code paths;
        use aarch64_gen_compare_reg instead of open-coding.

        * config/aarch64/aarch64.opt (-moutline-atomics): New.
        * config/aarch64/aarch64.c (aarch64_atomic_ool_func): New.
        (aarch64_ool_cas_names, aarch64_ool_swp_names): New.
        (aarch64_ool_ldadd_names, aarch64_ool_ldset_names): New.
        (aarch64_ool_ldclr_names, aarch64_ool_ldeor_names): New.
        (aarch64_expand_compare_and_swap): Honor TARGET_OUTLINE_ATOMICS.
        * config/aarch64/atomics.md (atomic_exchange<ALLI>): Likewise.
        (atomic_<atomic_op><ALLI>): Likewise.
        (atomic_fetch_<atomic_op><ALLI>): Likewise.
        (atomic_<atomic_op>_fetch<ALLI>): Likewise.
        * doc/invoke.texi: Document -moutline-atomics.

2019-09-19  Feng Xue  <fxue@os.amperecomputing.com>

        * ipa-fnsummary.c (set_cond_stmt_execution_predicate): Do not compute
        trivial predicate for condition branch.
        (set_switch_stmt_execution_predicate): Do not compute trivial predicate
        for switch case.
        (compute_bb_predicates): Update predicate based on post-dominating
        relationship.
        (analyze_function_body): Calculate post-dominating information.

2019-09-19  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-vectorizer.h (vectorizable_condition): Take an int
        reduction index instead of a boolean flag.
        * tree-vect-stmts.c (vectorizable_condition): Likewise.
        Swap the "then" and "else" values for EXTRACT_LAST_REDUCTION
        reductions if the reduction accumulator is the "then" rather
        than the "else" value.
        (vect_analyze_stmt): Update call accordingly.
        (vect_transform_stmt): Likewise.
        * tree-vect-loop.c (vectorizable_reduction): Likewise,
        asserting that the index is > 0.

2019-09-19  Martin Liska  <mliska@suse.cz>

        * ipa-icf.c (sort_sem_items_by_decl_uid): Simplify comparator.
        (sort_congruence_classes_by_decl_uid): Likewise.
        (sort_congruence_class_groups_by_decl_uid): Use std::pair for
        easier sorting.
        (sem_item_optimizer::merge_classes): Likewise.

2019-09-19  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91812
        * tree-ssa-phiprop.c (propagate_with_phi): Do not replace
        volatile loads.

2019-09-19  Richard Sandiford  <richard.sandiford@arm.com>

        * defaults.h (TARGET_UNIT): New macro.
        (target_unit): New type.
        * rtl.h (native_encode_rtx, native_decode_rtx)
        (native_decode_vector_rtx, subreg_size_lsb): Declare.
        (subreg_lsb_1): Turn into an inline wrapper around subreg_size_lsb.
        * rtlanal.c (subreg_lsb_1): Delete.
        (subreg_size_lsb): New function.
        * simplify-rtx.c: Include rtx-vector-builder.h
        (simplify_immed_subreg): Delete.
        (native_encode_rtx, native_decode_vector_rtx, native_decode_rtx)
        (simplify_const_vector_byte_offset, simplify_const_vector_subreg): New
        functions.
        (simplify_subreg): Use them.
        (test_vector_subregs_modes, test_vector_subregs_repeating)
        (test_vector_subregs_fore_back, test_vector_subregs_stepped)
        (test_vector_subregs): New functions.
        (test_vector_ops): Call test_vector_subregs for integer vector
        modes with at least 2 elements.

2019-09-19  Richard Biener  <rguenther@suse.de>

        * tree-parloops.c (parloops_is_slp_reduction): Do not set
        LOOP_VINFO_OPERANDS_SWAPPED.
        (parloops_is_simple_reduction): Likewise.
        * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Do not
        initialize operands_swapped.
        (_loop_vec_info::~_loop_vec_info): Do not re-canonicalize stmts.
        (vect_is_slp_reduction): Do not swap operands.
        * tree-vectorizer.h (_loop_vec_info::operands_swapped): Remove.
        (LOOP_VINFO_OPERANDS_SWAPPED): Likewise.

2019-09-19  Hongtao Liu <hongtao.liu@intel.com>

        PR target/87007
        * config/i386.md (*floatuns<SWI48:mode><MODEF:mode>2_avx512):
        Add avx_partial_xmm_update.

2019-09-18  Jim Wilson  <jimw@sifive.com>

        PR target/91683
        * config/riscv/riscv-protos.h (riscv_split_symbol): New bool parameter.
        (riscv_move_integer): Likewise.
        * config/riscv/riscv.c (riscv_split_integer): Pass FALSE for new
        riscv_move_integer arg.
        (riscv_legitimize_move): Likewise.
        (riscv_force_temporary): New parameter in_splitter.  Don't call
        force_reg if true.
        (riscv_unspec_offset_high): Pass FALSE for new riscv_force_temporary
        arg.
        (riscv_add_offset): Likewise.
        (riscv_split_symbol): New parameter in_splitter.  Pass to
        riscv_force_temporary.
        (riscv_legitimize_address): Pass FALSE for new riscv_split_symbol
        arg.
        (riscv_move_integer): New parameter in_splitter.  New local
        can_create_psuedo.  Don't call riscv_split_integer or force_reg when
        in_splitter TRUE.
        (riscv_legitimize_const_move): Pass FALSE for new riscv_move_integer,
        riscv_split_symbol, and riscv_force_temporary args.
        * config/riscv/riscv.md (low<mode>+1): Pass TRUE for new
        riscv_move_integer arg.
        (low<mode>+2): Pass TRUE for new riscv_split_symbol arg.

2019-09-18  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/90878
        * config/i386/x86-tune-costs.h (skylake_cost): Restore SImode
        hard register store cost to 6.

2019-09-18  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/91446
        * config/i386/x86-tune-costs.h (skylake_cost): Increase SImode
        pseudo register store cost from 3 to 6 to make it the same as
        QImode and HImode.

2019-09-18  Wilco Dijkstra  <wdijkstr@arm.com>

        PR target/91738
        * config/arm/arm.md (<logical_op>di3): Expand explicitly.
        (one_cmpldi2): Likewise.
        * config/arm/arm.c (const_ok_for_dimode_op): Return true if one
        of the constant parts is simple.
        * config/arm/iterators.md (LOGICAL): Add new code iterator.
        (logical_op): Add new code attribute.
        (logical_OP): Likewise.
        * config/arm/predicates.md (arm_anddi_operand): Add predicate.
        (arm_iordi_operand): Add predicate.
        (arm_xordi_operand): Add predicate.

2019-09-18  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/arm/arm.md (maddsidi4): Remove expander.
        (mulsidi3adddi): Remove pattern.
        (mulsidi3adddi_v6): Likewise.
        (mulsidi3_nov6): Likewise.
        (mulsidi3_v6): Likewise.
        (umulsidi3): Remove expander.
        (umulsidi3_nov6): Remove pattern.
        (umulsidi3_v6): Likewise.
        (umulsidi3adddi): Likewise.
        (umulsidi3adddi_v6): Likewise.
        (<Us>mulsidi3): Add combined expander.
        (<Us>maddsidi4): Likewise.
        (<US>mull): Add combined umull and smull pattern.
        (<US>mlal): Likewise.
        * config/arm/iterators.md (Us): Add new iterator.

2019-09-18  Richard Biener  <rguenther@suse.de>

        * tree-vect-loop.c (vect_is_simple_reduction): Remove operand
        swapping.
        (vectorize_fold_left_reduction): Remove assert.
        (vectorizable_reduction): Also expect COND_EXPR non-reduction
        operand in position 2.  Remove assert.

2019-09-18  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/arm/arm.md (smulsi3_highpart): Use <US> and <SE> iterators.
        (smulsi3_highpart_nov6): Remove pattern.
        (smulsi3_highpart_v6): Likewise.
        (umulsi3_highpart): Likewise.
        (umulsi3_highpart_nov6): Likewise.
        (umulsi3_highpart_v6): Likewise.
        (<US>mull_high): Add new combined multiply pattern.

2019-09-18  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/arm/arm.md (arm_mulsi3): Remove pattern.
        (arm_mulsi3_v6): Likewise.
        (mulsi3addsi_v6): Likewise.
        (mulsi3subsi): Likewise.
        (mul): Add new multiply pattern.
        (mla): Likewise.
        (mls): Likewise.

2019-09-18  Richard Biener  <rguenther@suse.de>

        * tree-parloops.c (report_ploop_op): Copy from report_vect_op.
        (parloops_valid_reduction_input_p): Copy from
        valid_reduction_input_p.
        (parloops_is_slp_reduction): Copy from vect_is_slp_reduction.
        (parloops_needs_fold_left_reduction_p): Copy from
        needs_fold_left_reduction_p.
        (parloops_is_simple_reduction): Copy from
        vect_is_simple_reduction.
        (parloops_force_simple_reduction): Copy from
        vect_force_simple_reduction.
        (gather_scalar_reductions): Adjust.
        * tree-vect-loop.c (vect_force_simple_reduction): Make static.
        * tree-vectorizer.h (vect_force_simple_reduction): Remove.

2019-09-18  Richard Biener  <rguenther@suse.de>

        * tree-vectorizer.h (get_initial_def_for_reduction): Remove.
        * tree-vect-loop.c (get_initial_def_for_reduction): Make
        static.
        (vect_create_epilog_for_reduction): Remove dead code.

2019-09-18  Richard Sandiford  <richard.sandiford@arm.com>

        * varasm.c (assemble_real): Generate canonical const_ints.

2019-09-18  Richard Biener  <rguenther@suse.de>

        PR lto/91763
        * lto-streamer-in.c (input_eh_regions): Move EH init to
        lto_materialize_function.
        * tree-streamer-in.c (lto_input_ts_function_decl_tree_pointers):
        Likewise.

2019-09-18  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-ssa-ccp.c (get_value_for_expr): Check whether CONSTANTs
        are INTEGER_CSTs.

2019-09-18  Richard Sandiford  <richard.sandiford@arm.com>

        * gimplify.c (gimplify_decl_expr): Use poly_int_tree_p instead
        of checking specifically for INTEGER_CST.

2019-09-18  Richard Sandiford  <richard.sandiford@arm.com>

        * stor-layout.c (compute_record_mode): Operate on poly_uint64
        sizes instead of uhwi sizes.

2019-09-18  Richard Sandiford  <richard.sandiford@arm.com>

        * dwarf2out.c (loc_list_from_tree_1): Handle POLY_INT_CST.
        (add_const_value_attribute): Handle CONST_POLY_INT.

2019-09-18  Martin Liska  <mliska@suse.cz>

        * dbgcnt.def (store_merging): New counter.
        * gimple-ssa-store-merging.c (imm_store_chain_info::output_merged_stores):
        Use it in store merging.

2019-09-17  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.c (aarch64_sched_variable_issue): New
        function.
        (TARGET_SCHED_VARIABLE_ISSUE): New macro.
        * config/arm/arm.c (arm_sched_variable_issue): New function.
        (TARGET_SCHED_VARIABLE_ISSUE): New macro.

2019-09-17  Richard Sandiford  <richard.sandiford@arm.com>

        * config/arm/types.md (no_reservation): New reservation.
        * config/aarch64/falkor.md (falkor_other_0_nothing): Don't handle
        no_insn here.
        * config/aarch64/saphira.md (saphira_other_0_nothing): Likewise.
        * config/aarch64/thunderx2t99.md (thunderx2t99_nothing): Likewise.
        * config/aarch64/tsv110.md (tsv110_alu): Likewise.
        * config/arm/arm1020e.md (1020alu_op): Likewise.
        * config/arm/arm1026ejs.md (alu_op): Likewise.
        * config/arm/arm1136jfs.md (11_alu_op): Likewise.
        * config/arm/arm926ejs.md (9_alu_op): Likewise.
        * config/arm/cortex-a15.md (cortex_a15_alu): Likewise.
        * config/arm/cortex-a17.md (cortex_a17_alu): Likewise.
        * config/arm/cortex-a5.md (cortex_a5_alu): Likewise.
        * config/arm/cortex-a53.md (cortex_a53_alu): Likewise.
        * config/arm/cortex-a57.md (cortex_a57_alu): Likewise.
        * config/arm/cortex-a7.md (cortex_a7_alu_shift): Likewise.
        * config/arm/cortex-a8.md (cortex_a8_alu): Likewise.
        * config/arm/cortex-a9.md (cortex_a9_dp): Likewise.
        * config/arm/cortex-m4.md (cortex_m4_alu): Likewise.
        * config/arm/cortex-m7.md (cortex_m7_alu_simple): Likewise.
        * config/arm/cortex-r4.md (cortex_r4_alu_shift_reg): Likewise.
        * config/arm/fa526.md (526_alu_op): Likewise.
        * config/arm/fa606te.md (606te_alu_op): Likewise.
        * config/arm/fa626te.md (626te_alu_op): Likewise.
        * config/arm/fa726te.md (726te_alu_op): Likewise.
        * config/arm/xgene1.md (xgene1_nop): Likewise.

2019-09-17  Richard Sandiford  <richard.sandiford@arm.com>

        * config/arm/thumb1.md (*thumb1_tablejump): Change type from
        "no_insn" to "branch".

2019-09-17  Richard Sandiford  <richard.sandiford@arm.com>

        * array-traits.h (array_traits<T[N]>::size): Remove parameter name.

2019-09-17  Richard Biener  <rguenther@suse.de>

        PR debug/91772
        * dwarf2out.c (dwarf2out_late_global_decl): If early dwarf
        was missing generate locations only once.

2019-09-17  Feng Xue  <fxue@os.amperecomputing.com>

        PR ipa/91089
        * doc/invoke.texi (ipa-max-switch-predicate-bounds): Document new
        option.
        * params.def (PARAM_IPA_MAX_SWITCH_PREDICATE_BOUNDS): New.
        * ipa-fnsummary.c (set_switch_stmt_execution_predicate): Add predicate
        for switch default case using range analysis information.

2019-09-17  Christophe Lyon  <christophe.lyon@linaro.org>

        PR target/91749
        * config/arm/arm.c (arm_valid_target_attribute_rec): Make sure the
        mode attributed is supported by FDPIC.

2019-09-17  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91790
        * tree-vect-stmts.c (vectorizable_load): For BB vectorization
        use the correct DR for setting up realignment.

2019-09-16  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/91719
        * config/i386/i386.h (TARGET_USE_XCHG_FOR_ATOMIC_STORE): New macro.
        * config/i386/x86-tune.def (X86_TUNE_USE_XCHG_FOR_ATOMIC_STORE): New.
        * config/i386/sync.md (atomic_store<mode>): emit XCHG for
        TARGET_USE_XCHG_FOR_ATOMIC_STORE.

2019-09-16  Jason Merrill  <jason@redhat.com>

        * Makefile.in (build/genmatch.o): Depend on $(CPPLIB_H).

2019-09-16  Martin Liska  <mliska@suse.cz>

        * gimple-fold.c (or_comparisons_1): Remove rules moved
        to ...
        * match.pd: ... here.

2019-09-16  Martin Liska  <mliska@suse.cz>

        * gimple-fold.c (or_comparisons_1): Remove rules
        moved to ...
        * match.pd: ... here.

2019-09-16  Martin Liska  <mliska@suse.cz>

        * genmatch.c (dt_node::append_simplify): Do not print
        warning when we have duplicate patterns belonging
        to a same simplify rule.
        * gimple-fold.c (and_comparisons_1): Remove matching moved to match.pd.
        (maybe_fold_comparisons_from_match_pd): Handle
        tcc_comparison as a results.
        * match.pd: Handle (X == CST1) && (X OP2 CST2) conditions.

2019-09-16  Li Jia He  <helijia@linux.ibm.com>
            Qi Feng  <ffengqi@linux.ibm.com>

        PR middle-end/88784
        * match.pd (x >  y  &&  x != XXX_MIN): Optimize into 'x > y'.
        (x >  y  &&  x == XXX_MIN): Optimize into 'false'.
        (x <= y  &&  x == XXX_MIN): Optimize into 'x == XXX_MIN'.
        (x <  y  &&  x != XXX_MAX): Optimize into 'x < y'.
        (x <  y  &&  x == XXX_MAX): Optimize into 'false'.
        (x >= y  &&  x == XXX_MAX): Optimize into 'x == XXX_MAX'.
        (x >  y  ||  x != XXX_MIN): Optimize into 'x != XXX_MIN'.
        (x <= y  ||  x != XXX_MIN): Optimize into 'true'.
        (x <= y  ||  x == XXX_MIN): Optimize into 'x <= y'.
        (x <  y  ||  x != XXX_MAX): Optimize into 'x != XXX_MAX'.
        (x >= y  ||  x != XXX_MAX): Optimize into 'true'.
        (x >= y  ||  x == XXX_MAX): Optimize into 'x >= y'.

2019-09-16  Li Jia He  <helijia@linux.ibm.com>
            Martin Liska  <mliska@suse.cz>

        * gimple-fold.c (and_comparisons_1): Add type as first
        argument.
        (and_var_with_comparison): Likewise.
        (and_var_with_comparison_1): Likewise.
        (or_comparisons_1): Likewise.
        (or_var_with_comparison): Likewise.
        (or_var_with_comparison_1): Likewise.
        (maybe_fold_and_comparisons): Call maybe_fold_comparisons_from_match_pd.
        (maybe_fold_or_comparisons): Likewise.
        (maybe_fold_comparisons_from_match_pd): New.
        * gimple-fold.h (maybe_fold_and_comparisons): Add type argument.
        (maybe_fold_or_comparisons): Likewise.
        * gimple.c (gimple_size): Make it public and add num_ops argument.
        (gimple_init): New function.
        (gimple_alloc): Call gimple_init.
        * gimple.h (gimple_size): New.
        (gimple_init): Likewise.
        * tree-if-conv.c (fold_or_predicates): Pass type.
        * tree-ssa-ifcombine.c (ifcombine_ifandif): Likewise.
        * tree-ssa-reassoc.c (eliminate_redundant_comparison): Likewise.
        (optimize_vec_cond_expr): Likewise.
        (ovce_extract_ops): Return type of conditional expression.
        * tree-ssanames.c (init_ssa_name_imm_use): New.
        (make_ssa_name_fn): Use init_ssa_name_imm_use.
        * tree-ssanames.h (init_ssa_name_imm_use): New.

2019-09-16  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91756
        PR tree-optimization/87132
        * tree-ssa-alias.h (enum translate_flags): New.
        (get_continuation_for_phi): Use it instead of simple bool flag.
        (walk_non_aliased_vuses): Likewise.
        * tree-ssa-alias.c (maybe_skip_until): Adjust.
        (get_continuation_for_phi): When looking across backedges only
        disallow valueization.
        (walk_non_aliased_vuses): Adjust.
        * tree-ssa-sccvn.c (vn_reference_lookup_3): Avoid valueization
        if requested.

2019-09-14  Kewen Lin  <linkw@gcc.gnu.org>

        PR middle-end/80791
        * config/rs6000/rs6000.c (TARGET_HAVE_COUNT_REG_DECR_P): New macro.
        (TARGET_DOLOOP_COST_FOR_GENERIC): Likewise.
        (TARGET_DOLOOP_COST_FOR_ADDRESS): Likewise.
        * target.def (have_count_reg_decr_p): New hook.
        (doloop_cost_for_generic): Likewise.
        (doloop_cost_for_address): Likewise.
        * doc/tm.texi.in (TARGET_HAVE_COUNT_REG_DECR_P): Likewise.
        (TARGET_DOLOOP_COST_FOR_GENERIC): Likewise.
        (TARGET_DOLOOP_COST_FOR_ADDRESS): Likewise.
        * doc/tm.texi: Regenerate.
        * tree-ssa-loop-ivopts.c (comp_cost::operator+=): Consider infinite cost
        addend.
        (record_group): Init doloop_p.
        (add_candidate_1): Add optional argument doloop, change the handlings
        accordingly.
        (add_candidate): Likewise.
        (generic_predict_doloop_p): Update attribute.
        (force_expr_to_var_cost): Add costing for expressions COND_EXPR/LT_EXPR/
        LE_EXPR/GT_EXPR/GE_EXPR/EQ_EXPR/NE_EXPR/UNORDERED_EXPR/ORDERED_EXPR/
        UNLT_EXPR/UNLE_EXPR/UNGT_EXPR/UNGE_EXPR/UNEQ_EXPR/LTGT_EXPR/MAX_EXPR/
        MIN_EXPR.
        (get_computation_cost): Update for doloop IV cand extra cost.
        (determine_group_iv_cost_cond): Update for doloop IV cand.
        (determine_iv_cost): Likewise.
        (ivopts_estimate_reg_pressure): Likewise.
        (may_eliminate_iv): Update handlings for doloop IV cand.
        (add_iv_candidate_for_doloop): New function.
        (find_iv_candidates): Call function add_iv_candidate_for_doloop.
        (iv_ca_set_no_cp): Update for doloop IV cand.
        (iv_ca_set_cp): Likewise.
        (iv_ca_dump): Dump register cost.
        (find_doloop_use): New function.
        (analyze_and_mark_doloop_use): Likewise.
        (tree_ssa_iv_optimize_loop): Call function analyze_and_mark_doloop_use.

2019-09-13  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR middle-end/91708
        * cse.c (cse_insn): Do not replace anything with a
        MEM.

2019-09-13  Ian Lance Taylor  <iant@golang.org>

        * doc/invoke.texi (Optimize Options): Fix typo.

2019-09-12  Uroš Bizjak  <ubizjak@gmail.com>

        PR tree-optimization/89386
        * config/i386/sse.md (smulhrs<mode>3): New expander.
        (smulhrsv4hi3): Ditto.

2019-09-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91750
        * tree-vect-loop.c (vectorizable_induction): Compute IV increments
        in the type of the evolution.

2019-09-12  Yuliang Wang  <yuliang.wang@arm.com>

        PR tree-optimization/89386
        * config/aarch64/aarch64-sve2.md (<su>mull<bt><Vwide>)
        (<r>shrnb<mode>, <r>shrnt<mode>): New SVE2 patterns.
        (<su>mulh<r>s<mode>3): New pattern for MULHRS.
        * config/aarch64/iterators.md (UNSPEC_SMULLB, UNSPEC_SMULLT)
        (UNSPEC_UMULLB, UNSPEC_UMULLT, UNSPEC_SHRNB, UNSPEC_SHRNT)
        (UNSPEC_RSHRNB, UNSPEC_RSHRNT, UNSPEC_SMULHS, UNSPEC_SMULHRS)
        UNSPEC_UMULHS, UNSPEC_UMULHRS): New unspecs.
        (MULLBT, SHRNB, SHRNT, MULHRS): New int iterators.
        (su, r): Handle the unspecs above.
        (bt): New int attribute.
        * internal-fn.def (IFN_MULHS, IFN_MULHRS): New internal functions.
        * internal-fn.c (first_commutative_argument): Commutativity info for
        above.
        * optabs.def (smulhs_optab, smulhrs_optab, umulhs_optab)
        (umulhrs_optab): New optabs.
        * doc/md.texi (smulhs$var{m3}, umulhs$var{m3})
        (smulhrs$var{m3}, umulhrs$var{m3}): Documentation for the above.
        * tree-vect-patterns.c (vect_recog_mulhs_pattern): New pattern
        function.
        (vect_vect_recog_func_ptrs): Add it.

2019-09-11  Michael Meissner  <meissner@linux.ibm.com>

        * config/rs6000/predicates.md (non_add_cint_operand): Simplify the
        code.

2019-09-11  Nathan Sidwell  <nathan@acm.org>

        * tree.h (MARK_TS_TYPE_NON_COMMON): New.
        * tree.c (tree_node_structure_for_code): Reformat and alphabetize.

2019-09-11  Richard Biener  <rguenther@suse.de>

        * lto-opts.c (lto_write_options): Stream -g when debug is enabled.
        * lto-wrapper.c (merge_and_complain): Pick up -g.
        (append_compiler_options): Likewise.
        (run_gcc): Re-instantiate handling -g0 at link-time.
        * doc/invoke.texi (flto): Document debug info generation.

2019-09-11  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90387
        * vr-values.c (vr_values::extract_range_basic): After inlining
        simplify non-constant __builtin_constant_p to false.

2019-09-11  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/89795
        * rtlanal.c (nonzero_bits1) <SUBREG>: Do not propagate results from
        inner REGs to paradoxical SUBREGs if WORD_REGISTER_OPERATIONS is set.

2019-09-11  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/91723
        * tree-vect-stmts.c (vectorizable_call): Use types_compatible_p check
        instead of pointer equality when checking if argument vectypes are
        the same.

        PR middle-end/91725
        * match.pd ((A / (1 << B)) -> (A >> B)): Call tree_nonzero_bits instead
        of get_nonzero_bits, only call it for integral types.

2019-09-11  Richard Biener  <rguenther@suse.de>

        Revert
        2019-09-09  Barnaby Wilks  <barnaby.wilks@arm.com>

        * match.pd: Add flag_unsafe_math_optimizations check
        before deciding on the widest type in a binary math operation.

2019-09-10  Richard Sandiford  <richard.sandiford@arm.com>

        * doc/tm.texi.in: Document that exactly one of CALL_USED_REGISTERS
        and CALL_REALLY_USED_REGISTERS must be defined, and that
        CALL_REALLY_USED_REGISTERS is preferred.
        * doc/tm.texi: Regenerate.
        * hard-reg-set.h (target_hard_regs::x_call_really_used_regs): Delete.
        (call_really_used_regs): Likewise.
        * reginfo.c: Raise an #error if both CALL_USED_REGISTERS and
        CALL_REALLY_USED_REGISTERS are defined.
        (initial_call_used_regs): Use CALL_REALLY_USED_REGISTERS as the
        initial value if defined.
        (initial_call_really_used_regs): Delete.
        (saved_call_really_used_regs): Likewise.
        (CALL_REALLY_USED_REGNO_P): Likewise.
        (init_reg_sets): Remove handling of call_really_used_regs.
        (save_register_info, restore_register_info, globalize_reg): Likewise.
        (init_reg_sets_1): Likewise.  Use call_used_regs instead of
        CALL_REALLY_USED_REGNO_P.  Don't set call_used_regs for registers
        outside operand_reg_set.
        (fix_register): Don't change call_used_regs if
        CALL_REALLY_USED_REGISTERS is defined.
        * config/csky/csky.h (CALL_USED_REGISTERS): Delete.
        * config/csky/csky.c (get_csky_live_regs): Use call_used_regs
        instead of call_really_used_regs.
        (csky_conditional_register_usage): Remove the old handling of
        call_used_regs and change the handling of call_really_used_regs
        to use call_used_regs instead.
        * config/ia64/ia64.h (CALL_USED_REGISTERS): Delete.
        * config/ia64/ia64.c (fix_range): Don't set call_used_regs when
        making a register fixed.
        * config/m32r/m32r.h (CALL_USED_REGISTERS): Delete.
        * config/m32r/m32r.c (MUST_SAVE_REGISTER): Use call_used_regs
        instead of call_really_used_regs.
        (m32r_conditional_register_usage): Don't set call_used_regs when
        making a register fixed.
        * config/mips/mips.h (CALL_USED_REGISTERS): Delete.
        * config/mips/mips.c (mips_global_pointer): Use call_used_regs
        instead of call_really_used_regs.
        (mips_interrupt_extra_call_saved_reg_p): Likewise.
        (mips_cfun_call_saved_reg_p): Likewise.
        (mips_swap_registers): Remove the old handling of call_used_regs
        and change the handling of call_really_used_regs to use call_used_regs
        instead.
        (mips_conditional_register_usage): Likewise.
        * config/mn10300/mn10300.h (CALL_USED_REGISTERS): Delete.
        * config/mn10300/mn10300.c (fp_regs_to_save): Use call_used_regs
        instead of call_really_used_regs.
        (mn10300_get_live_callee_saved_regs): Likewise.
        (mn10300_expand_prologue, mn10300_expand_epilogue): Likewise.
        (mn10300_conditional_register_usage): Don't set call_used_regs when
        making a register fixed.
        * config/rs6000/rs6000.h (CALL_USED_REGISTERS): Delete.
        * config/rs6000/rs6000.c (rs6000_conditional_register_usage):
        Remove the old handling of call_used_regs and change the handling
        of call_really_used_regs to use call_used_regs instead.
        * config/s390/s390.h (CALL_USED_REGISTERS): Delete.
        * config/s390/s390.c (s390_regs_ever_clobbered): Use call_used_regs
        instead of call_really_used_regs.
        (s390_register_info_gprtofpr, s390_register_info): Likewise.
        (s390_hard_regno_rename_ok, s390_hard_regno_scratch_ok): Likewise.
        (s390_emit_prologue, s300_set_up_by_prologue): Likewise.
        (s390_can_use_return_insn, s390_optimize_prologue): Likewise.
        (s390_conditional_register_usage): Remove the old handling of
        call_used_regs and change the handling of call_really_used_regs
        to use call_used_regs instead.
        * config/sh/sh.h (CALL_USED_REGISTERS): Delete.
        * config/sh/sh.c (output_stack_adjust, calc_live_regs): Likewise.
        (sh_fix_range, reg_unused_after): Likewise.
        (sh_conditional_register_usage): Remove the old handling of
        call_used_regs and change the handling of call_really_used_regs
        to use call_used_regs instead.
        * config/sparc/sparc.h (CALL_USED_REGISTERS): Delete.
        * config/sparc/sparc.c (sparc_conditional_register_usage): Don't set
        call_used_regs when making a register fixed.
        * config/tilegx/tilegx.h (CALL_USED_REGISTERS): Delete.
        * config/tilegx/tilegx.c (tilegx_conditional_register_usage): Don't set
        call_used_regs when making a register fixed.
        * config/tilepro/tilepro.h (CALL_USED_REGISTERS): Delete.
        * config/tilepro/tilepro.c (tilepro_conditional_register_usage): Don't
        set call_used_regs when making a register fixed.
        * config/visium/visium.h (CALL_USED_REGISTERS): Delete.
        * config/visium/visium.c (visium_conditional_register_usage): Remove
        the old handling of call_used_regs and change the handling of
        call_really_used_regs to use call_used_regs instead.

2019-09-10  Richard Sandiford  <richard.sandiford@arm.com>

        * hard-reg-set.h (call_used_regs): Only define if IN_TARGET_CODE.
        (call_used_or_fixed_reg_p): Expand definition of call_used_regs.
        * reginfo.c (call_used_regs): New macro.

2019-09-10  Richard Sandiford  <richard.sandiford@arm.com>

        * config/alpha/alpha.c (alpha_compute_frame_layout): Remove redundant
        fixed_regs test.
        * config/bpf/bpf.c (bpf_compute_frame_layout, bpf_expand_prologue)
        (bpf_expand_epilogue): Likewise.
        * config/c6x/c6x.c (c6x_save_reg): Likewise.
        * config/ft32/ft32.c (ft32_expand_prologue): Likewise.
        (ft32_expand_epilogue): Likewise.
        * config/i386/i386.c (ix86_save_reg): Likewise.
        * config/moxie/moxie.c (moxie_expand_prologue): Likewise.
        (moxie_expand_epilogue): Likewise.
        * config/tilegx/tilegx.c (need_to_save_reg): Likewise.
        * config/tilepro/tilepro.c (need_to_save_reg): Likewise.
        * config/xtensa/xtensa.c (xtensa_call_save_reg): Likewise.

2019-09-10  Richard Sandiford  <richard.sandiford@arm.com>

        * hard-reg-set.h (call_used_or_fixed_reg_p): New macro.
        * cfgloopanal.c (init_set_costs): Use call_used_or_fixed_reg_p
        instead of testing call_used_regs directly.
        * config/aarch64/aarch64.c (aarch64_layout_frame): Likewise.
        (aarch64_components_for_bb): Likewise.
        * config/alpha/alpha.c (alpha_compute_frame_layout): Likewise.
        * config/arc/arc.c (arc_must_save_register): Likewise.
        (arc_epilogue_uses): Likewise.
        * config/arm/arm.c (arm_option_override, use_return_insn): Likewise.
        (legitimize_pic_address, callee_saved_reg_p): Likewise.
        (arm_compute_save_reg0_reg12_mask): Likewise.
        (arm_compute_save_core_reg_mask): Likewise.
        (arm_get_vfp_saved_size, arm_compute_frame_layout): Likewise.
        (arm_save_coproc_regs, thumb1_extra_regs_pushed): Likewise.
        (cmse_nonsecure_entry_clear_before_return): Likewise.
        (thumb1_expand_epilogue, arm_expand_epilogue_apcs_frame): Likewise.
        (arm_expand_epilogue): Likewise.
        * config/avr/avr.c (avr_regs_to_save, sequent_regs_live): Likewise.
        (avr_function_arg_advance, avr_find_unused_d_reg): Likewise.
        (_reg_unused_after): Likewise.
        * config/bfin/bfin.c (must_save_p, expand_prologue_reg_save): Likewise.
        (expand_epilogue_reg_restore, n_regs_saved_by_prologue): Likewise.
        (add_to_reg, hwloop_optimize): Likewise.
        * config/bpf/bpf.c (bpf_compute_frame_layout, bpf_expand_prologue)
        (bpf_expand_epilogue): Likewise.
        * config/c6x/c6x.c (c6x_save_reg, c6x_regno_reg_class): Likewise.
        * config/cr16/cr16.c (cr16_compute_save_regs): Likewise.
        * config/cris/cris.c (cris_reg_saved_in_regsave_area): Likewise.
        * config/epiphany/epiphany.c (epiphany_init_reg_tables): Likewise.
        (epiphany_compute_function_type, MUST_SAVE_REGISTER): Likewise.
        (epiphany_output_mi_thunk, epiphany_start_function): Likewise.
        * config/fr30/fr30.c (fr30_num_arg_regs): Likewise.
        * config/frv/frv.c (frv_stack_info): Likewise.
        * config/ft32/ft32.c (ft32_compute_frame): Likewise.
        (ft32_expand_prologue, ft32_expand_epilogue): Likewise.
        * config/gcn/gcn.c (gcn_compute_frame_offsets): Likewise.
        (move_callee_saved_registers): Likewise.
        * config/h8300/h8300.c (byte_reg): Likewise.
        * config/i386/i386-options.c (ix86_set_current_function): Likewise.
        * config/i386/i386.c (ix86_save_reg, ix86_expand_prologue): Likewise.
        (ix86_expand_epilogue, x86_order_regs_for_local_alloc): Likewise.
        * config/i386/predicates.md (sibcall_memory_operand): Likewise.
        * config/ia64/ia64.c (emit_safe_across_calls, find_gr_spill): Likewise.
        (next_scratch_gr_reg, ia64_compute_frame_size): Likewise.
        * config/iq2000/iq2000.h (MUST_SAVE_REGISTER): Likewise.
        * config/lm32/lm32.c (lm32_compute_frame_size): Likewise.
        * config/m32c/m32c.c (need_to_save): Likewise.
        * config/m68k/m68k.c (m68k_save_reg): Likewise.
        * config/mcore/mcore.c (calc_live_regs): Likewise.
        * config/microblaze/microblaze.c (microblaze_must_save_register):
        Likewise.
        * config/mmix/mmix.c (mmix_local_regno): Likewise.
        (mmix_initial_elimination_offset, mmix_reorg): Likewise.
        (mmix_use_simple_return, mmix_expand_prologue): Likewise.
        (mmix_expand_epilogue): Likewise.
        * config/moxie/moxie.c (moxie_compute_frame): Likewise.
        (moxie_expand_prologue, moxie_expand_epilogue): Likewise.
        * config/msp430/msp430.c (msp430_preserve_reg_p): Likewise.
        * config/nds32/nds32.h (nds32_16bit_address_type): Likewise.
        (NDS32_REQUIRED_CALLEE_SAVED_P): Likewise.
        * config/nios2/nios2.c (prologue_saved_reg_p): Likewise.
        * config/or1k/or1k.c (callee_saved_regno_p): Likewise.
        * config/pa/pa.c (pa_expand_prologue, pa_expand_epilogue): Likewise.
        * config/pdp11/pdp11.c (pdp11_saved_regno): Likewise.
        * config/pru/pru.c (prologue_saved_reg_p): Likewise.
        * config/riscv/riscv.c (riscv_save_reg_p): Likewise.
        (riscv_epilogue_uses, riscv_hard_regno_mode_ok): Likewise.
        * config/rl78/rl78.c (need_to_save): Likewise.
        * config/rs6000/rs6000-logue.c (save_reg_p): Likewise.
        (rs6000_stack_info, generate_set_vrsave): Likewise.
        (rs6000_emit_prologue, rs6000_emit_epilogue): Likewise.
        * config/rs6000/rs6000.c (rs6000_debug_reg_print): Likewise.
        * config/rx/rx.c (rx_get_stack_layout): Likewise.
        * config/s390/s390.c (s390_call_saved_register_used): Likewise.
        * config/sh/sh.c (calc_live_regs, sh_output_mi_thunk): Likewise.
        * config/sparc/sparc.c (save_global_or_fp_reg_p): Likewise.
        (save_local_or_in_reg_p): Likewise.
        * config/stormy16/stormy16.c (REG_NEEDS_SAVE): Likewise.
        (xstormy16_epilogue_uses): Likewise.
        * config/tilegx/tilegx.c (need_to_save_reg): Likewise.
        * config/tilepro/tilepro.c (need_to_save_reg): Likewise.
        * config/v850/v850.c (compute_register_save_size): Likewise.
        * config/vax/vax.c (vax_expand_prologue): Likewise.
        * config/visium/visium.c (visium_save_reg_p): Likewise.
        * config/xtensa/xtensa.c (xtensa_call_save_reg): Likewise.
        * cselib.c (cselib_process_insn): Likewise.
        * df-scan.c (df_get_entry_block_def_set): Likewise.
        * function.c (aggregate_value_p): Likewise.
        * haifa-sched.c (alloc_global_sched_pressure_data): Likewise.
        * ira-lives.c (process_bb_node_lives): Likewise.
        * ira.c (do_reload): Likewise.
        * lra-lives.c (process_bb_lives): Likewise.
        * lra-remat.c (lra_remat): Likewise.
        * lra.c (lra): Likewise.
        * postreload.c (reload_combine_recognize_pattern): Likewise.
        (reload_cse_move2add): Likewise.
        * recog.c (peep2_find_free_register): Likewise.
        * regrename.c (check_new_reg_p): Likewise.
        * reload.c (find_equiv_reg): Likewise.
        * reload1.c (reload, find_reg): Likewise.
        * sel-sched.c (init_hard_regs_data): Likewise.

2019-09-10  Richard Sandiford  <richard.sandiford@arm.com>

        * config/frv/frv.c (frv_ifcvt_modify_tests): Use
        regs_invalidated_by_call & ~fixed_reg_set instead of
        call_used_or_fixed_regs & ~fixed_reg_set.
        * config/sh/sh.c (output_stack_adjust): Likewise.

2019-09-10  Richard Sandiford  <richard.sandiford@arm.com>

        * hard-reg-set.h (target_hard_regs::x_call_used_reg_set): Delete.
        (call_used_reg_set): Delete.
        (call_used_or_fixed_regs): New macro.
        * reginfo.c (init_reg_sets_1, globalize_reg): Remove initialization
        of call_used_reg_set.
        * caller-save.c (setup_save_areas): Use call_used_or_fixed_regs
        instead of call_used_regs.
        (save_call_clobbered_regs): Likewise.
        * cfgcleanup.c (old_insns_match_p): Likewise.
        * config/c6x/c6x.c (c6x_call_saved_register_used): Likewise.
        * config/epiphany/epiphany.c (epiphany_conditional_register_usage):
        Likewise.
        * config/frv/frv.c (frv_ifcvt_modify_tests): Likewise.
        * config/sh/sh.c (output_stack_adjust): Likewise.
        * final.c (collect_fn_hard_reg_usage): Likewise.
        * ira-build.c (ira_build): Likewise.
        * ira-color.c (calculate_saved_nregs): Likewise.
        (allocno_reload_assign, calculate_spill_cost): Likewise.
        * ira-conflicts.c (ira_build_conflicts): Likewise.
        * ira-costs.c (ira_tune_allocno_costs): Likewise.
        * ira-lives.c (process_bb_node_lives): Likewise.
        * ira.c (setup_reg_renumber): Likewise.
        * lra-assigns.c (find_hard_regno_for_1, lra_assign): Likewise.
        * lra-constraints.c (need_for_call_save_p): Likewise.
        (need_for_split_p, inherit_in_ebb): Likewise.
        * lra-lives.c (process_bb_lives): Likewise.
        * lra-remat.c (call_used_input_regno_present_p): Likewise.
        * postreload.c (reload_combine): Likewise.
        * regrename.c (find_rename_reg): Likewise.
        * reload1.c (reload_as_needed): Likewise.
        * rtlanal.c (find_all_hard_reg_sets): Likewise.
        * sel-sched.c (mark_unavailable_hard_regs): Likewise.
        * shrink-wrap.c (requires_stack_frame_p): Likewise.

2019-09-10  Richard Sandiford  <richard.sandiford@arm.com>

        * hard-reg-set.h (target_hard_regs::x_no_caller_save_reg_set): Delete.
        (no_caller_save_reg_set): Delete.
        * caller-save.c (init_caller_save): Don't initialize it.
        * ira-conflicts.c (ira_build_conflicts): Calculate
        no_caller_save_reg_set locally from call_used_reg_set and savable_regs.

2019-09-10  Richard Sandiford  <richard.sandiford@arm.com>

        * hard-reg-set.h (target_hard_regs::x_call_fixed_reg_set): Delete.
        (target_hard_regs::x_savable_regs): New field.
        (call_fixed_reg_set): Delete.
        (savable_regs): New macro,
        * reginfo.c (globalize_reg): Don't set call_fixed_reg_set.
        (init_reg_sets_1): Likewise.  Initialize savable_regs.
        * caller-save.c (init_caller_save): Invoke HARD_REGNO_CALLER_SAVE_MODE
        for all registers.  Set savable_regs instead of call_fixed_reg_set.
        (setup_save_areas, save_call_clobbered_regs): Replace uses of
        ~call_fixed_reg_set with ~fixed_reg_set & savable_regs.
        * config/sh/sh.c (output_stack_adjust): Likewise.

2019-09-10  Richard Sandiford  <richard.sandiford@arm.com>

        * config/c6x/c6x-protos.h (c6x_set_return_address): Declare.
        * config/c6x/c6x.h (REGNO_REG_CLASS): Move implementation to
        * config/c6x/c6x.c (c6x_regno_reg_class): ...this new function.

2019-09-10  Richard Sandiford  <richard.sandiford@arm.com>

        * rtl.h (get_call_rtx_from): Take a const rtx_insn * instead of an rtx.
        * rtlanal.c (get_call_rtx_from): Likewise.
        * dwarf2out.c (dwarf2out_var_location): Pass the insn rather
        than the pattern to get_call_rtx_from.
        * config/i386/i386-expand.h (ix86_notrack_prefixed_insn_p): Take
        an rtx_insn * instead of an rtx.
        * config/i386/i386-expand.c (ix86_notrack_prefixed_insn_p): Likewise.

2019-09-10  Martin Liska  <mliska@suse.cz>

        * common.opt: Use newly added WarnRemoved.
        * config/aarch64/aarch64.opt: Likewise.
        * config/arm/arm.opt: Likewise.
        * config/i386/i386.opt: Likewise.
        * config/ia64/ia64.opt: Likewise.
        * config/rs6000/rs6000.opt: Likewise.
        * doc/options.texi: Document WarnRemoved properly.
        * dwarf2out.c (gen_producer_string): Handle renamed
        OPT_SPECIAL_warn_removed.
        * lto-opts.c (lto_write_options): Likewise.
        * lto-wrapper.c (merge_and_complain): Likewise.
        * opts-common.c (decode_cmdline_option): Likewise.
        (prune_options): Likewise.
        (read_cmdline_option): Likewise.
        (control_warning_option): Likewise.
        * opts.c (print_filtered_help): Likewise.
        * optc-gen.awk: Parse for WarnRemoved and make usage
        of Deprecated an error.
        * opth-gen.awk: Generate new OPT_SPECIAL_warn_removed.

2019-09-10  Arnaud Charlet  <charlet@adacore.com>

        * doc/install.texi: Fix syntax for html generation.

2019-09-10  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/91680
        * match.pd ((A / (1 << B)) -> (A >> B)): Allow widening cast from
        the shift type to type.

2019-09-10  Christophe Lyon  <christophe.lyon@st.com>

        * config/arm/arm.md (stack_protect_combined_set_insn): Handle
        FDPIC mode.
        (stack_protect_combined_test_insn): Likewise.

2019-09-10  Christophe Lyon  <christophe.lyon@st.com>
            Mickaël Guêné <mickael.guene@st.com>

        * config/arm/arm.c (arm_load_tp): Add FDPIC support.
        * config/arm/arm.md (FDPIC_REGNUM): New constant.
        (load_tp_soft_fdpic): New pattern.
        (load_tp_soft): Disable in FDPIC mode.

2019-09-10  Christophe Lyon  <christophe.lyon@st.com>
            Mickaël Guêné <mickael.guene@st.com>

        * config/arm/arm.c (tls_reloc): Add TLS_GD32_FDPIC,
        TLS_LDM32_FDPIC and TLS_IE32_FDPIC.
        (arm_call_tls_get_addr): Add FDPIC support.
        (legitimize_tls_address): Likewise.
        (arm_emit_tls_decoration): Likewise.

2019-09-10  Christophe Lyon  <christophe.lyon@st.com>
            Mickaël Guêné <mickael.guene@st.com>

        * config/arm/arm.c (arm_asm_trampoline_template): Add FDPIC
        support.
        (arm_trampoline_init): Likewise.
        (arm_trampoline_adjust_address): Likewise.
        * config/arm/arm.h (TRAMPOLINE_SIZE): Likewise.

2019-09-10  Christophe Lyon  <christophe.lyon@st.com>
            Mickaël Guêné <mickael.guene@st.com>

        * config/arm/arm.c (arm_fdpic_local_funcdesc_p): New function.
        (legitimize_pic_address): Enforce binding rules on function
        pointers in FDPIC mode.
        (arm_assemble_integer): Likewise.

2019-09-10  Christophe Lyon  <christophe.lyon@st.com>
            Mickaël Guêné <mickael.guene@st.com>

        * config/arm/arm.h (PIC_REGISTER_MAY_NEED_SAVING): New helper.
        * config/arm/arm.c (arm_compute_save_reg0_reg12_mask): Handle
        FDPIC.

2019-09-10  Christophe Lyon  <christophe.lyon@st.com>
            Mickaël Guêné <mickael.guene@st.com>

        * ginclude/unwind-arm-common.h (unwinder_cache): Add reserved5
        field.

2019-09-10  Christophe Lyon  <christophe.lyon@st.com>
            Mickaël Guêné <mickael.guene@st.com>

        * config/arm/arm-c.c (__FDPIC__): Define new pre-processor macro
        in FDPIC mode.
        * config/arm/arm-protos.h (arm_load_function_descriptor): Declare
        new function.
        * config/arm/arm.c (arm_option_override): Define pic register to
        FDPIC_REGNUM.
        (arm_function_ok_for_sibcall): Disable sibcall optimization if we
        have no decl or go through PLT.
        (calculate_pic_address_constant): New function.
        (legitimize_pic_address): Call calculate_pic_address_constant.
        (arm_load_pic_register): Handle TARGET_FDPIC.
        (arm_is_segment_info_known): New function.
        (arm_pic_static_addr): Add support for FDPIC.
        (arm_load_function_descriptor): New function.
        (arm_emit_call_insn): Add support for FDPIC.
        (arm_assemble_integer): Add support for FDPIC.
        * config/arm/arm.h (PIC_OFFSET_TABLE_REG_CALL_CLOBBERED):
        Define. (FDPIC_REGNUM): New define.
        * config/arm/arm.md (call): Add support for FDPIC.
        (call_value): Likewise.
        (restore_pic_register_after_call): New pattern.
        (untyped_call): Disable if FDPIC.
        (untyped_return): Likewise.
        * config/arm/unspecs.md (UNSPEC_PIC_RESTORE): New.

2019-09-10  Christophe Lyon  <christophe.lyon@st.com>
            Mickaël Guêné <mickael.guene@st.com>

        * config.gcc: Handle arm*-*-uclinuxfdpiceabi.
        * config/arm/bpabi.h (TARGET_FDPIC_ASM_SPEC): New.
        (SUBTARGET_EXTRA_ASM_SPEC): Use TARGET_FDPIC_ASM_SPEC.
        * config/arm/linux-eabi.h (FDPIC_CC1_SPEC): New.
        (CC1_SPEC): Use FDPIC_CC1_SPEC.
        (MUSL_DYNAMIC_LINKER): Add -fdpic suffix when needed.
        * config/arm/uclinuxfdpiceabi.h: New file.

2019-09-10  Christophe Lyon  <christophe.lyon@st.com>

        * config.gcc: Handle *-*-uclinuxfdpiceabi.

2019-09-10  Christophe Lyon  <christophe.lyon@st.com>
            Mickaël Guêné  <mickael.guene@st.com>

        * config/arm/arm.opt: Add -mfdpic option.
        * doc/invoke.texi: Add documentation for -mfdpic.

2019-09-09  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * expmed.c (extract_bit_field): Update function comment
        regarding alt_rtl.
        * expr.c (expand_expr_real): Update function comment
        regarding alt_rtl.
        (expand_misaligned_mem_ref): New helper function.
        (expand_expr_real_2): Use expand_misaligned_mem_ref.
        Remove duplicate assignment to "base" at case MEM_REF.
        Remove a shadowed variable "unsignedp" at case VCE. 

2019-09-09  Richard Sandiford  <richard.sandiford@arm.com>

        * regset.h (regs_invalidated_by_call_regset): Delete.
        (fixed_reg_set_regset): Likewise.
        * reginfo.c (regs_invalidated_by_call_regset): Likewise.
        (fixed_reg_set_regset, persistent_obstack): Likewise.
        (init_reg_sets_1, globalize_reg): Update accordingly.
        * df.h (df_print_regset, df_print_word_regset): Take a const_bitmap
        instead of a bitmap.
        * df-core.c (df_print_regset, df_print_word_regset): Likewise.
        * df-problems.c (df_rd_local_compute): Use regs_invalidated_by_call
        instead of regs_invalidated_by_call_regset.
        (df_lr_confluence_n, df_md_confluence_n): Likewise.
        * df-scan.c (df_scan_start_dump): Likewise.
        * dse.c (copy_fixed_regs): Likewise.
        * config/sh/sh.c (sh_find_equiv_gbr_addr): Likewise.

2019-09-09  Richard Sandiford  <richard.sandiford@arm.com>

        * array-traits.h: New file.
        * coretypes.h (array_traits, bitmap_view): New types.
        * bitmap.h: Include "array-traits.h"
        (bitmap_bit_p): Take a const_bitmap instead of a bitmap.
        (base_bitmap_view, bitmap_view): New classes.
        * bitmap.c (bitmap_bit_p): Take a const_bitmap instead of a bitmap.
        * hard-reg-set.h: Include array-traits.h.
        (array_traits<HARD_REG_SET>): New struct.
        * regset.h (IOR_REG_SET_HRS): New macro.
        * loop-iv.c (simplify_using_initial_values): Use IOR_REG_SET_HRS
        rather than iterating over each hard register.
        * sched-deps.c (sched_analyze_insn): Likewise.
        * sel-sched-ir.c (setup_id_implicit_regs): Likewise.

2019-09-09  Richard Sandiford  <richard.sandiford@arm.com>

        * ira-int.h (ior_hard_reg_conflicts): Take a const_hard_reg_set
        instead of a HARD_REG_SET *.
        * ira-build.c (ior_hard_reg_conflicts): Likewise.
        (ira_build): Update call accordingly.
        * ira-emit.c (add_range_and_copies_from_move_list): Likewise.

2019-09-09  Richard Sandiford  <richard.sandiford@arm.com>

        * hard-reg-set.h (HARD_REG_SET::operator==): New function.
        (HARD_REG_SET::operator!=): Likewise.
        (hard_reg_set_equal_p): Delete.
        * cfgcleanup.c (old_insns_match_p): Use == instead of
        hard_reg_set_equal_p and != instead of !hard_reg_set_equal_p.
        * ira-color.c (allocno_hard_regs_hasher::equal): Likewise.
        (add_allocno_hard_regs_to_forest): Likewise.
        (setup_allocno_available_regs_num): Likewise.
        * ira.c (setup_pressure_classes): Likewise.
        (setup_allocno_and_important_classes): Likewise.
        (setup_reg_class_relations): Likewise.
        * lra-lives.c (process_bb_lives): Likewise.
        * reg-stack.c (change_stack, convert_regs_1): Likewise.

2019-09-09  Richard Sandiford  <richard.sandiford@arm.com>

        * hard-reg-set.h (IOR_COMPL_HARD_REG_SET): Delete.
        * config/aarch64/cortex-a57-fma-steering.c (rename_single_chain):
        Use "|~" instead of IOR_COMPL_HARD_REG_SET.
        * config/aarch64/falkor-tag-collision-avoidance.c (init_unavailable):
        Likewise.
        * ira-build.c (ira_create_object, ira_set_allocno_class): Likewise.
        * ira.c (setup_reg_renumber): Likewise.
        * lra-assigns.c (find_hard_regno_for_1): Likewise.
        * regrename.c (regrename_find_superclass): Likewise.
        * reload1.c (find_reg): Likewise.

2019-09-09  Richard Sandiford  <richard.sandiford@arm.com>

        * hard-reg-set.h (AND_COMPL_HARD_REG_SET): Delete.
        * caller-save.c (setup_save_areas): Use "&~" instead of
        AND_COMPL_HARD_REG_SET.
        (save_call_clobbered_regs): Likewise.
        * config/epiphany/epiphany.c (epiphany_conditional_register_usage):
        Likewise.
        * config/frv/frv.c (frv_ifcvt_modify_tests): Likewise.
        * config/gcn/gcn.c (gcn_md_reorg): Likewise.
        * config/i386/i386.c (ix86_conditional_register_usage): Likewise.
        * config/mips/mips.c (mips_class_max_nregs): Likewise.
        (mips_conditional_register_usage): Likewise.
        * config/sh/sh.c (output_stack_adjust): Likewise.
        * ira-color.c (form_allocno_hard_regs_nodes_forest): Likewise.
        (setup_profitable_hard_regs): Likewise.
        (get_conflict_and_start_profitable_regs): Likewise.
        * ira-conflicts.c (print_allocno_conflicts): Likewise.
        (ira_build_conflicts): Likewise.
        * ira-costs.c (restrict_cost_classes): Likewise.
        (setup_regno_cost_classes_by_aclass): Likewise.
        * ira-lives.c (process_bb_node_lives): Likewise.
        * ira.c (setup_class_hard_regs, setup_reg_subclasses): Likewise.
        (setup_class_subset_and_memory_move_costs, setup_pressure_classes)
        (setup_allocno_and_important_classes, setup_class_translate_array)
        (setup_reg_class_relations, setup_prohibited_class_mode_regs):
        Likewise.
        * lra-assigns.c (find_hard_regno_for_1): Likewise.
        * lra-constraints.c (prohibited_class_reg_set_mode_p): Likewise.
        (process_alt_operands, inherit_in_ebb): Likewise.
        * lra-eliminations.c (update_reg_eliminate): Likewise.
        * lra-lives.c (process_bb_lives): Likewise.
        * reload1.c (update_eliminables_and_spill, reload_as_needed): Likewise.
        * resource.c (find_dead_or_set_registers): Likewise.
        (mark_target_live_regs): Likewise.
        * sched-deps.c (get_implicit_reg_pending_clobbers): Likewise.
        * sel-sched.c (mark_unavailable_hard_regs): Likewise.
        (implicit_clobber_conflict_p): Likewise.
        * shrink-wrap.c (requires_stack_frame_p): Likewise.
        (try_shrink_wrapping): Likewise.

2019-09-09  Richard Sandiford  <richard.sandiford@arm.com>

        * hard-reg-set.h (HARD_REG_SET::operator|): New function.
        (HARD_REG_SET::operator|=): Likewise.
        (IOR_HARD_REG_SET): Delete.
        * config/gcn/gcn.c (gcn_md_reorg): Use "|" instead of
        IOR_HARD_REG_SET.
        * config/m32c/m32c.c (m32c_register_move_cost): Likewise.
        * config/s390/s390.c (s390_adjust_loop_scan_osc): Likewise.
        * final.c (collect_fn_hard_reg_usage): Likewise.
        * hw-doloop.c (scan_loop, optimize_loop): Likewise.
        * ira-build.c (merge_hard_reg_conflicts): Likewise.
        (ior_hard_reg_conflicts, create_cap_allocno, propagate_allocno_info)
        (propagate_some_info_from_allocno): Likewise.
        (copy_info_to_removed_store_destinations): Likewise.
        * ira-color.c (add_allocno_hard_regs_to_forest, assign_hard_reg)
        (allocno_reload_assign, ira_reassign_pseudos): Likewise.
        (fast_allocation): Likewise.
        * ira-conflicts.c (ira_build_conflicts): Likewise.
        * ira-lives.c (make_object_dead, process_single_reg_class_operands)
        (process_bb_node_lives): Likewise.
        * ira.c (setup_pressure_classes, setup_reg_class_relations): Likewise.
        * lra-assigns.c (find_hard_regno_for_1): Likewise.
        (setup_live_pseudos_and_spill_after_risky_transforms): Likewise.
        * lra-constraints.c (process_alt_operands, inherit_in_ebb): Likewise.
        * lra-eliminations.c (spill_pseudos, update_reg_eliminate): Likewise.
        * lra-lives.c (mark_pseudo_dead, check_pseudos_live_through_calls)
        (process_bb_lives): Likewise.
        * lra-spills.c (assign_spill_hard_regs): Likewise.
        * postreload.c (reload_combine): Likewise.
        * reginfo.c (init_reg_sets_1): Likewise.
        * regrename.c (merge_overlapping_regs, find_rename_reg)
        (merge_chains): Likewise.
        * reload1.c (maybe_fix_stack_asms, order_regs_for_reload, find_reg)
        (find_reload_regs, finish_spills, choose_reload_regs_init)
        (emit_reload_insns): Likewise.
        * reorg.c (redundant_insn): Likewise.
        * resource.c (find_dead_or_set_registers, mark_set_resources)
        (mark_target_live_regs): Likewise.
        * rtlanal.c (find_all_hard_reg_sets): Likewise.
        * sched-deps.c (sched_analyze_insn): Likewise.
        * sel-sched.c (mark_unavailable_hard_regs): Likewise.
        (find_best_reg_for_expr): Likewise.
        * shrink-wrap.c (try_shrink_wrapping): Likewise.

2019-09-09  Richard Sandiford  <richard.sandiford@arm.com>

        * hard-reg-set.h (HARD_REG_SET::operator&): New function.
        (HARD_REG_SET::operator&): Likewise.
        (AND_HARD_REG_SET): Delete.
        * caller-save.c (setup_save_areas): Use "&" instead of
        AND_HARD_REG_SET.
        (save_call_clobbered_regs): Likewise.
        * config/gcn/gcn.c (gcn_md_reorg): Likewise.
        * config/m32c/m32c.c (reduce_class): Likewise.
        * config/rs6000/rs6000.c (rs6000_register_move_cost): Likewise.
        * final.c (get_call_reg_set_usage): Likewise.
        * ira-color.c (add_allocno_hard_regs_to_forest): Likewise.
        (setup_left_conflict_sizes_p): Likewise.
        * ira-conflicts.c (print_allocno_conflicts): Likewise.
        (ira_build_conflicts): Likewise.
        * ira-costs.c (restrict_cost_classes): Likewise.
        * ira.c (setup_stack_reg_pressure_class, setup_class_translate_array)
        (setup_reg_class_relations): Likewise.
        * reginfo.c (init_reg_sets_1, record_subregs_of_mode): Likewise.
        * reload1.c (maybe_fix_stack_asms, finish_spills): Likewise.
        * resource.c (find_dead_or_set_registers): Likewise.
        * sel-sched.c (mark_unavailable_hard_regs): Likewise.

2019-09-09  Richard Sandiford  <richard.sandiford@arm.com>

        * hard-reg-set.h (HARD_REG_SET::operator~): New function.
        (COMPL_HARD_REG_SET): Delete.
        * config/c6x/c6x.c (c6x_call_saved_register_used): Use ~ instead
        of COMPL_HARD_REG_SET.
        (try_rename_operands): Likewise.
        * config/sh/sh.c (push_regs): Likewise.
        * lra-assigns.c (find_hard_regno_for_1): Likewise.
        * lra-constraints.c (contains_reg_p): Likewise.
        * reload1.c (finish_spills, choose_reload_regs_init): Likewise.

2019-09-09  Richard Sandiford  <richard.sandiford@arm.com>

        * hard-reg-set.h (COPY_HARD_REG_SET): Delete.
        * caller-save.c (save_call_clobbered_regs): Use assignment instead
        of COPY_HARD_REG_SET.
        * config/epiphany/epiphany.c (epiphany_compute_frame_size): Likewise.
        (epiphany_conditional_register_usage): Likewise.
        * config/frv/frv.c (frv_ifcvt_modify_tests): Likewise.
        * config/gcn/gcn.c (gcn_md_reorg): Likewise.
        * config/ia64/ia64.c (ia64_compute_frame_size): Likewise.
        * config/m32c/m32c.c (m32c_register_move_cost): Likewise.
        * config/m68k/m68k.c (m68k_conditional_register_usage): Likewise.
        * config/mips/mips.c (mips_class_max_nregs): Likewise.
        * config/pdp11/pdp11.c (pdp11_conditional_register_usage): Likewise.
        * config/rs6000/rs6000.c (rs6000_register_move_cost): Likewise.
        * config/sh/sh.c (output_stack_adjust): Likewise.
        * final.c (collect_fn_hard_reg_usage): Likewise.
        (get_call_reg_set_usage): Likewise.
        * ira-build.c (ira_create_object, remove_low_level_allocnos)
        (ira_flattening): Likewise.
        * ira-color.c (add_allocno_hard_regs, add_allocno_hard_regs_to_forest)
        (setup_left_conflict_sizes_p, setup_profitable_hard_regs)
        (get_conflict_and_start_profitable_regs, allocno_reload_assign)
        (ira_reassign_pseudos): Likewise.
        * ira-conflicts.c (print_allocno_conflicts): Likewise.
        (ira_build_conflicts): Likewise.
        * ira-costs.c (restrict_cost_classes): Likewise.
        (setup_regno_cost_classes_by_aclass): Likewise.
        * ira.c (setup_class_hard_regs, setup_alloc_regs): Likewise.
        (setup_reg_subclasses, setup_class_subset_and_memory_move_costs)
        (setup_stack_reg_pressure_class, setup_pressure_classes)
        (setup_allocno_and_important_classes, setup_class_translate_array)
        (setup_reg_class_relations, setup_prohibited_class_mode_regs)
        (ira_setup_eliminable_regset): Likewise.
        * lra-assigns.c (find_hard_regno_for_1): Likewise.
        (setup_live_pseudos_and_spill_after_risky_transforms): Likewise.
        * lra-constraints.c (prohibited_class_reg_set_mode_p): Likewise.
        (process_alt_operands, inherit_in_ebb): Likewise.
        * lra-lives.c (process_bb_lives): Likewise.
        * lra-spills.c (assign_spill_hard_regs): Likewise.
        * lra.c (lra): Likewise.
        * mode-switching.c (new_seginfo): Likewise.
        * postreload.c (reload_combine): Likewise.
        * reg-stack.c (straighten_stack): Likewise.
        * reginfo.c (save_register_info, restore_register_info): Likewise.
        (init_reg_sets_1, record_subregs_of_mode): Likewise
        * regrename.c (create_new_chain, rename_chains): Likewise.
        * reload1.c (order_regs_for_reload, find_reg): Likewise.
        (find_reload_regs): Likewise.
        * resource.c (find_dead_or_set_registers): Likewise.
        (mark_target_live_regs): Likewise.
        * sel-sched.c (mark_unavailable_hard_regs): Likewise.

2019-09-09  Richard Sandiford  <richard.sandiford@arm.com>

        * rtl.h (CALL_INSN_FUNCTION_USAGE): Document what SETs mean.
        (note_pattern_stores): Declare.
        (note_stores): Take an rtx_insn *.
        * rtlanal.c (set_of): Use note_pattern_stores instead of note_stores.
        (find_all_hard_reg_sets): Pass the insn rather than its pattern to
        note_stores.  Remove explicit handling of CALL_INSN_FUNCTION_USAGE.
        (note_stores): Take an rtx_insn * as argument and process
        CALL_INSN_FUNCTION_USAGE.  Rename old function to...
        (note_pattern_stores): ...this.
        (find_first_parameter_load): Pass the insn rather than
        its pattern to note_stores.
        * alias.c (memory_modified_in_insn_p, init_alias_analysis): Likewise.
        * caller-save.c (setup_save_areas, save_call_clobbered_regs)
        (insert_one_insn): Likewise.
        * combine.c (combine_instructions): Likewise.
        (likely_spilled_retval_p): Likewise.
        (try_combine): Use note_pattern_stores instead of note_stores.
        (record_dead_and_set_regs): Pass the insn rather than its pattern
        to note_stores.
        (reg_dead_at_p): Likewise.
        * config/bfin/bfin.c (workaround_speculation): Likewise.
        * config/c6x/c6x.c (maybe_clobber_cond): Likewise.  Take an rtx_insn *
        rather than an rtx.
        * config/frv/frv.c (frv_registers_update): Use note_pattern_stores
        instead of note_stores.
        (frv_optimize_membar_local): Pass the insn rather than its pattern
        to note_stores.
        * config/gcn/gcn.c (gcn_md_reorg): Likewise.
        * config/i386/i386.c (ix86_avx_u128_mode_after): Likewise.
        * config/mips/mips.c (vr4130_true_reg_dependence_p): Likewise.
        (r10k_needs_protection_p, mips_sim_issue_insn): Likewise.
        (mips_reorg_process_insns): Likewise.
        * config/s390/s390.c (s390_regs_ever_clobbered): Likewise.
        * config/sh/sh.c (flow_dependent_p): Likewise.  Take rtx_insn *s
        rather than rtxes.
        * cse.c (delete_trivially_dead_insns): Pass the insn rather than
        its pattern to note_stores.
        * cselib.c (cselib_record_sets): Use note_pattern_stores instead
        of note_stores.
        * dce.c (mark_nonreg_stores): Remove the "body" parameter and pass
        the insn to note_stores.
        (prescan_insns_for_dce): Update call accordingly.
        * ddg.c (mem_write_insn_p): Pass the insn rather than its pattern
        to note_stores.
        * df-problems.c (can_move_insns_across): Likewise.
        * dse.c (emit_inc_dec_insn_before, replace_read): Likewise.
        * function.c (assign_parm_setup_reg): Likewise.
        * gcse-common.c (record_last_mem_set_info_common): Likewise.
        * gcse.c (load_killed_in_block_p, compute_hash_table_work): Likewise.
        (single_set_gcse): Likewise.
        * ira.c (validate_equiv_mem): Likewise.
        (update_equiv_regs): Use note_pattern_stores rather than note_stores
        for no_equiv.
        * loop-doloop.c (doloop_optimize): Pass the insn rather than its
        pattern to note_stores.
        * loop-invariant.c (calculate_loop_reg_pressure): Likewise.
        * loop-iv.c (simplify_using_initial_values): Likewise.
        * mode-switching.c (optimize_mode_switching): Likewise.
        * optabs.c (emit_libcall_block_1): Likewise.
        (expand_atomic_compare_and_swap): Likewise.
        * postreload-gcse.c (load_killed_in_block_p): Likewise.
        (record_opr_changes): Likewise.  Remove explicit handling of
        CALL_INSN_FUNCTION_USAGE.
        * postreload.c (reload_combine, reload_cse_move2add): Likewise.
        * regcprop.c (kill_clobbered_values): Likewise.
        (copyprop_hardreg_forward_1): Pass the insn rather than its pattern
        to note_stores.
        * regrename.c (build_def_use): Likewise.
        * reload1.c (reload):  Use note_pattern_stores instead of note_stores
        for mark_not_eliminable.
        (reload_as_needed): Pass the insn rather than its pattern
        to note_stores.
        (emit_output_reload_insns): Likewise.
        * resource.c (mark_target_live_regs): Likewise.
        * sched-deps.c (init_insn_reg_pressure_info): Likewise.
        * sched-rgn.c (sets_likely_spilled): Use note_pattern_stores
        instead of note_stores.
        * shrink-wrap.c (try_shrink_wrapping): Pass the insn rather than
        its pattern to note_stores.
        * stack-ptr-mod.c (pass_stack_ptr_mod::execute): Likewise.
        * var-tracking.c (adjust_insn, add_with_sets): Likewise.

2019-09-09  Richard Sandiford  <richard.sandiford@arm.com>

        * hard-reg-set.h (HARD_REG_SET): Define using a typedef rather
        than a #define.  Use a structure rather than an array as the
        fallback definition.  Remove special cases for low array sizes.
        (const_hard_reg_set): New typedef.
        (hard_reg_set_subset_p): Use it instead of "const HARD_REG_SET".
        (hard_reg_set_equal_p, hard_reg_set_intersect_p): Likewise.
        (hard_reg_set_empty_p): Likewise.
        (SET_HARD_REG_BIT): Use a function rather than a macro to
        handle the case in which HARD_REG_SET is a structure.
        (CLEAR_HARD_REG_BIT, TEST_HARD_REG_BIT, CLEAR_HARD_REG_SET)
        (SET_HARD_REG_SET, COPY_HARD_REG_SET, COMPL_HARD_REG_SET)
        (AND_HARD_REG_SET, AND_COMPL_HARD_REG_SET, IOR_HARD_REG_SET)
        (IOR_COMPL_HARD_REG_SET): Likewise.
        (hard_reg_set_iterator::pset): Constify the pointer target.
        (hard_reg_set_iter_init): Take a const_hard_reg_set instead
        of a "const HARD_REG_SET".  Update the handling of non-integer
        HARD_REG_SETs.
        * recog.h: Test HARD_CONST instead of CLEAR_HARD_REG_SET.
        * reload.h: Likewise.
        * rtl.h (choose_hard_reg_mode): Remove unnecessary line break.
        * regs.h (in_hard_reg_set_p): Take a const_hard_reg_set instead
        of a "const HARD_REG_SET".
        (overlaps_hard_reg_set_p, range_overlaps_hard_reg_set_p): Likewise.
        (range_in_hard_reg_set_p): Likewise.
        * ira-costs.c (restrict_cost_classes): Likewise.
        * shrink-wrap.c (move_insn_for_shrink_wrap): Likewise.
        * config/epiphany/resolve-sw-modes.c (pass_resolve_sw_modes::execute):
        Pass a NO_REGS HARD_REG_SET rather than NULL to emit_set_fp_mode.
        * config/ia64/ia64.c (rws_insn): In the CHECKING_P version,
        use unsigned HOST_WIDEST_FAST_INT rather than HARD_REG_ELT_TYPE.
        (rws_insn_set, rws_insn_test): In the CHECKING_P version,
        take an unsigned int and open-code the HARD_REG_SET operations.

2019-09-09  Richard Sandiford  <richard.sandiford@arm.com>

        * Makefile.in (OBJS): Remove bt-load.o.
        * doc/invoke.texi (fbranch-target-load-optimize): Delete.
        (fbranch-target-load-optimize2, fbtr-bb-exclusive): Likewise.
        * common.opt (fbranch-target-load-optimize): Mark as Ignore and
        document that the option no longer does anything.
        (fbranch-target-load-optimize2, fbtr-bb-exclusive): Likewise.
        * target.def (branch_target_register_class): Delete.
        (branch_target_register_callee_saved): Likewise.
        * doc/tm.texi.in (TARGET_BRANCH_TARGET_REGISTER_CLASS): Likewise.
        (TARGET_BRANCH_TARGET_REGISTER_CALLEE_SAVED): Likewise.
        * doc/tm.texi: Regenerate.
        * tree-pass.h (make_pass_branch_target_load_optimize1): Delete.
        (make_pass_branch_target_load_optimize2): Likewise.
        * passes.def (pass_branch_target_load_optimize1): Likewise.
        (pass_branch_target_load_optimize2): Likewise.
        * targhooks.h (default_branch_target_register_class): Likewise.
        * targhooks.c (default_branch_target_register_class): Likewise.
        * opt-suggestions.c (test_completion_valid_options): Remove
        -fbtr-bb-exclusive from the list of test options.
        * bt-load.c: Remove.

2019-09-09  Barnaby Wilks  <barnaby.wilks@arm.com>

        * match.pd: Add flag_unsafe_math_optimizations check
        before deciding on the widest type in a binary math operation.

2019-09-09  Martin Liska  <mliska@suse.cz>

        * config/i386/i386.opt: Update comment of removed
        options that are preserved only for backward
        compatibility.

2019-09-09  Jakub Jelinek  <jakub@redhat.com>

        PR target/87853
        * config/i386/emmintrin.h (_mm_cmpeq_epi8): Use casts to __v16qi
        instead of __v16qs.

        PR target/91704
        * config/i386/avxintrin.h (__v32qs): New typedef.
        * config/i386/avx2intrin.h (_mm256_cmpgt_epi8): Use casts to __v32qs
        instead of __v32qi.

2019-09-09  Jose E. Marchesi  <jose.marchesi@oracle.com>

        * doc/invoke.texi (Option Summary): Cover eBPF.
        (eBPF Options): New section.
        * doc/extend.texi (BPF Built-in Functions): Likewise.
        (BPF Kernel Helpers): Likewise.

2019-09-09  Jose E. Marchesi  <jose.marchesi@oracle.com>

        * config.gcc: Support for bpf-*-* targets.
        * common/config/bpf/bpf-common.c: New file.
        * config/bpf/t-bpf: Likewise.
        * config/bpf/predicates.md: Likewise.
        * config/bpf/constraints.md: Likewise.
        * config/bpf/bpf.opt: Likewise.
        * config/bpf/bpf.md: Likewise.
        * config/bpf/bpf.h: Likewise.
        * config/bpf/bpf.c: Likewise.
        * config/bpf/bpf-protos.h: Likewise.
        * config/bpf/bpf-opts.h: Likewise.
        * config/bpf/bpf-helpers.h: Likewise.
        * config/bpf/bpf-helpers.def: Likewise.

2019-09-09  Jose E. Marchesi  <jose.marchesi@oracle.com>

        * doc/sourcebuild.texi (Effective-Target Keywords): Document
        indirect_calls.

2019-09-09  Jose E. Marchesi  <jose.marchesi@oracle.com>

        * opt-functions.awk (integer_range_info): Make sure values are in
        numeric context before operating with them.

2019-09-08  Segher Boessenkool  <segher@kernel.crashing.org>

        * genemit.c (gen_split): Print the filename and line number where the
        splitter (or peephole2) was defined, to the dump file.

2019-09-07  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/91665
        * tree-vect-loop.c (vectorizable_reduction): Punt if base has type
        incompatible with the type of PHI result.

2019-09-07  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR target/91684
        * config/arm/arm.c (arm_block_set_aligned_non_vect): Use
        gen_unaligned_storedi for 4-byte aligned addresses.

2019-09-06  Jim Wilson  <jimw@sifive.com>

        * config/riscv/riscv.c (riscv_option_override): Revert 2019-08-30
        change.

2019-09-06  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (unspec): Delete UNSPEC_MV_CR_OV.

2019-09-06  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (rs6000_rtx_costs) <case UNSPEC>: Delete.
        * config/rs6000/rs6000.md (unspec): Delete UNSPEC_FRSP.

2019-09-06  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/91654
        * config/i386/x86-tune-costs.h (skylake_cost): Raise the
        cost of SSE->integer and integer->SSE moves from 2 to 6.
        (core_cost): Ditto.

2019-09-06  Jakub Jelinek  <jakub@redhat.com>

        * function.c (assign_parm_find_data_types): Use RECORD_OR_UNION_TYPE_P
        before testing TYPE_TRANSPARENT_AGGR.
        * calls.c (initialize_argument_information, load_register_parameters):
        Likewise.

2019-09-06  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.md (cmp_and): Add short-it variant for thumb2 with
        high regs.
        (cmp_ior): Likewise.

2019-09-06  Martin Liska  <mliska@suse.cz>

        * doc/match-and-simplify.texi: Separate tuples with ;.

2019-09-06  Martin Liska  <mliska@suse.cz>

        PR c++/91125
        * Makefile.in: Remove tlink.o.
        * collect2.c (do_link): New function isolated
        from do_tlink.
        (main): Use.
        * collect2.h (do_tlink): Remove declaration of do_tlink.
        * doc/extend.texi: Remove documentation of -frepo.
        * doc/invoke.texi: Likewise.
        * doc/sourcebuild.texi: Remove cleanup-repo-files.
        * tlink.c: Remove.

2019-09-05  Jakub Jelinek  <jakub@redhat.com>
            Jim Wilson  <jimw@sifive.com>

        PR target/91635
        * config/riscv/riscv.md (zero_extendsidi2, zero_extendhi<GPR:mode>2,
        extend<SHORT:mode><SUPERQI:mode>2): Don't split if
        paradoxical_subreg_p (operands[0]).
        (*lshrsi3_zero_extend_3+1, *lshrsi3_zero_extend_3+2): Add clobber and
        use as intermediate value.

2019-09-05  Andrew Stubbs  <ams@codesourcery.com>

        * config/gcn/gcn.md (*movti_insn): Set delayeduse for global_store.
        (sync_compare_and_swap<mode>_insn): Likewise.

2019-09-05  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR middle-end/91615
        * expr.c (expand_expr_real_1): Handle misaligned TARGET_MEM_REF
        without movmisalign optab.

2019-09-05  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/91001
        PR middle-end/91105
        PR middle-end/91106
        * calls.c (load_register_parameters): For TYPE_TRANSPARENT_AGGR
        types, use type of their first field instead of type of
        args[i].tree_value.

2019-09-05  Richard Biener  <rguenther@suse.de>

        PR rtl-optimization/91656
        * postreload-gcse.c (record_last_mem_set_info): Revert addition
        of early out.

2019-09-05  Richard Biener  <rguenther@suse.de>

        PR middle-end/90501
        * tree-inline.c (declare_return_variable): Mark the return
        slot as addressable after building an address of it.

2019-09-05  Arnaud Charlet  <charlet@adacore.com>

        * doc/install.texi: Update and clarify requirements to build GNAT.

2019-09-05  Richard Sandiford  <richard.sandiford@arm.com>

        PR middle-end/91577
        * cfgexpand.c (discover_nonconstant_array_refs): Force the source
        of an IFN_LOAD_LANES call and the destination of an IFN_STORE_LANES
        call to be in memory.
        (pass_expand::execute): Call discover_nonconstant_array_refs before
        setting currently_expanding_to_rtl.

2019-09-04  Caroline Tice  <cmtice@google.com>

        * opts.c (finish_options): Disallow -fvtable-verify and -flto to be
        specified together.

2019-09-04  Marek Polacek  <polacek@redhat.com>

        * doc/invoke.texi: Remove -fdeduce-init-list documentation.

2019-09-04  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/32413
        * config/i386/i386.c (inline_secondary_memory_needed): Return true
        for QI and HImode moves between SSE and general registers.

2019-09-04  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR c/78736
        * doc/invoke.texi: Document -Wenum-conversion.

2019-09-04  Richard Biener  <rguenther@suse.de>

        PR rtl-optimization/36262
        * postreload-gcse.c: Include intl.h and gcse.h.
        (insert_expr_in_table): Insert at the head of cur_expr->avail_occr
        to avoid linear list walk.
        (record_last_mem_set_info): Gate off if not computing transparentness.
        (get_bb_avail_insn): If transparentness isn't computed give up
        early.
        (gcse_after_reload_main): Skip compute_transp and extended PRE
        if gcse_or_cprop_is_too_expensive says so.

2019-09-03  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        * config/msp430/msp430.c (msp430_init_sections): Remove handling of the
        noinit section.
        (msp430_select_section): Handle decls with the "noinit" attribute with
        default_elf_select_section.
        Handle SECCAT_RODATA_MERGE_* section types with
        default_elf_select_section.
        Add comments about handling of unsupported section types.
        (msp430_section_type_flags): Remove handling of the noinit section.

2019-09-03  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        * config/msp430/msp430.c (msp430_attr): Remove warnings about
        conflicting msp430-specific attributes.
        (msp430_section_attr): Likewise.
        Add warnings about conflicts with generic "noinit" and "section"
        attributes.
        Fix grammar in -mlarge error message.
        (msp430_data_attr): Rename to msp430_persist_attr.
        Add warnings about conflicts with generic "noinit" and "section"
        attributes.
        Add warning for when variable is not initialized.
        Chain conditionals which prevent the attribute being added.
        (ATTR_EXCL): New helper.
        (attr_reent_exclusions): New exclusion table.
        (attr_naked_exclusions): Likewise.
        (attr_crit_exclusions): Likewise.
        (attr_lower_exclusions): Likewise.
        (attr_upper_exclusions): Likewise.
        (attr_either_exclusions): Likewise.
        (attr_persist_exclusions): Likewise.
        (msp430_attribute_table): Update with exclusion rules.
        (msp430_output_aligned_decl_common): Don't output common symbol if decl
        has a section.

2019-09-03  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        * config/msp430/msp430.c (TARGET_HANDLE_GENERIC_ATTRIBUTE): Define.
        (msp430_handle_generic_attribute): New function.
        * doc/tm.texi: Regenerate.
        * doc/tm.texi.in: Add TARGET_HANDLE_GENERIC_ATTRIBUTE.
        * hooks.c (hook_tree_treeptr_tree_tree_int_boolptr_null): New.
        * hooks.h (hook_tree_treeptr_tree_tree_int_boolptr_null): New.
        * target.def: Define new hook TARGET_HANDLE_GENERIC_ATTRIBUTE.

2019-09-03  Kamlesh Kumar  <kamleshbhalui@gmail.com>

        PR tree-optimization/91504
        * match.pd: Add ((~a & b) ^a) --> (a | b).

2019-09-03  Jakub Jelinek  <jakub@redhat.com>

        PR target/91604
        * config/i386/i386-expand.c (split_double_mode): If there is more than
        one MEM operand and they are rtx_equal_p, reuse lo_half/hi_half from
        already split matching MEM operand instead of calling adjust_address
        again.

2019-09-03  Ulrich Weigand  <uweigand@de.ibm.com>

        * config.gcc: Obsolete spu target.  Remove references to spu.
        * configure.ac: Remove references to spu.
        * configure: Regenerate.
        * config/spu/: Remove directory.
        * common/config/spu/: Remove directory.

        * doc/extend.texi: Remove references to spu.
        * doc/invoke.texi: Likewise.
        * doc/md.texi: Likewise.
        * doc/sourcebuild.texi: Likewise.

2019-09-03  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR middle-end/91603
        PR middle-end/91612
        PR middle-end/91613
        * expr.c (expand_expr_real_1): Handle unaligned decl_rtl
        and SSA_NAME referring to CONSTANT_P correctly.

2019-09-03  Richard Biener  <rguenther@suse.de>

        * tree-ssa-sccvn.h (vn_nary_op_lookup): Remove.
        (vn_nary_op_insert): Likewise.
        * tree-ssa-sccvn.c (init_vn_nary_op_from_op): Remove.
        (vn_nary_op_lookup): Likewise.
        (vn_nary_op_insert): Likewise.

2019-09-03  Ilya Leoshkevich  <iii@linux.ibm.com>

        * config/s390/s390.c (s390_canonicalize_comparison): Use XEXP
        (*op0, 1) instead of XEXP (*op1, 0).

2019-09-03  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.md (UNSPEC_FJCVTZS): Define.
        (aarch64_fjcvtzs): New define_insn.
        * config/aarch64/aarch64.h (TARGET_JSCVT): Define.
        * config/aarch64/aarch64-builtins.c (aarch64_builtins):
        Add AARCH64_JSCVT.
        (aarch64_init_builtins): Initialize __builtin_aarch64_jcvtzs.
        (aarch64_expand_builtin): Handle AARCH64_JSCVT.
        * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins): Define
        __ARM_FEATURE_JCVT where appropriate.
        * config/aarch64/arm_acle.h (__jcvt): Define.

2019-09-03  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.md ("unspec"): Add UNSPEC_FRINT32Z,
        UNSPEC_FRINT32X, UNSPEC_FRINT64Z, UNSPEC_FRINT64X.
        (aarch64_<frintnzs_op><mode>): New define_insn.
        * config/aarch64/aarch64.h (TARGET_FRINT): Define.
        * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins): Define
        __ARM_FEATURE_FRINT when appropriate.
        * config/aarch64/aarch64-simd-builtins.def: Add builtins for frint32z,
        frint32x, frint64z, frint64x.
        * config/aarch64/arm_acle.h (__rint32zf, __rint32z, __rint64zf,
        __rint64z, __rint32xf, __rint32x, __rint64xf, __rint64x): Define.
        * config/aarch64/arm_neon.h (vrnd32z_f32, vrnd32zq_f32, vrnd32z_f64,
        vrnd32zq_f64, vrnd32x_f32, vrnd32xq_f32, vrnd32x_f64, vrnd32xq_f64,
        vrnd64z_f32, vrnd64zq_f32, vrnd64z_f64, vrnd64zq_f64, vrnd64x_f32,
        vrnd64xq_f32, vrnd64x_f64, vrnd64xq_f64): Define.
        * config/aarch64/iterators.md (VSFDF): Define.
        (FRINTNZX): Likewise.
        (frintnzs_op): Likewise.

2019-09-03  Dennis Zhang  <dennis.zhang@arm.com>

        * config/aarch64/aarch64-cores.def (AARCH64_CORE): New entries
        for Cortex-A77, Cortex-A76AE, Cortex-A65, Cortex-A65AE, and
        Cortex-A34.
        * config/aarch64/aarch64-tune.md: Regenerated.
        * doc/invoke.texi: Document the new processors.

2019-09-03  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64-option-extensions.def (sb): Add feature
        string.
        (ssbs): Likewise.
        (sve2): Likewise.
        (sve2-sm4): Likewise.
        (sveaes): Likewise.
        (svesha3): Likewise.
        (svebitperm): Likewise.

2019-09-03  Jakub Jelinek  <jakub@redhat.com>
            Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91597
        * tree-vrp.c (extract_range_from_binary_expr): Remove unsafe
        BIT_AND_EXPR optimization for pointers, even if both operand
        ranges don't include NULL, the result can be NULL.

2019-09-02  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR middle-end/91605
        * expr.c (addr_expr_of_non_mem_decl_p_1): Refactor into...
        (non_mem_decl_p): ...this.
        (mem_ref_refers_to_non_mem_p): Handle DECL_P as well as MEM_REF.
        (expand_assignment): Call mem_ref_referes_to_non_mem_p
        unconditionally as before.

2019-09-02  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/91323
        * doc/generic.texi (LTGT_EXPR): Merge with other comparison operators.
        * rtl.def (LTGT): Likewise.  Add note about floating-point exceptions.
        * tree.def (LTGT_EXPR): Likewise.
        * config/sparc/sparc.c (select_cc_mode): Return CCFPEmode for LTGT.

2019-09-02  Jakub Jelinek  <jakub@redhat.com>

        PR go/91617
        * fold-const.c (range_check_type): For enumeral and boolean
        type, pass 1 to type_for_size langhook instead of
        TYPE_UNSIGNED (etype).  Return unsigned_type_for result whenever
        etype isn't TYPE_UNSIGNED INTEGER_TYPE.
        (build_range_check): Don't call unsigned_type_for for pointer types.
        * match.pd (X / C1 op C2): Don't call unsigned_type_for on
        range_check_type result.

2019-09-02  Eric Botcazou  <ebotcazou@adacore.com>

        * gimple-ssa-strength-reduction.c (valid_mem_ref_cand_p): New function.
        (replace_ref): Do not replace a chain of only two candidates which are
        valid memory references.

2019-09-02  Martin Liska  <mliska@suse.cz>

        * tree-switch-conversion.c (jump_table_cluster::find_jump_tables):
        Bail out when we'll end up with the same number of clusters as
        at the beginning.
        (bit_test_cluster::find_bit_tests): Likewise for bit tests.
        (jump_table_cluster::can_be_handled): Remove the guard
        as it's already handled in ::is_enabled.  Allocate output
        after early bail out.

2019-09-02  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/91601
        * gcov.c (path_contains_zero_cycle_arc): Rename to ...
        (path_contains_zero_or_negative_cycle_arc): ... this and handle
        also negative edges.
        (circuit): Handle also negative edges as they can happen
        in some situations.

2019-09-01  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/91472
        * config/sparc/sparc.c (sparc_cannot_force_const_mem): Return true
        during LRA/reload in PIC mode if the PIC register hasn't been used yet.
        (sparc_pic_register_p): Test reload_in_progress for consistency's sake.

2019-09-01  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/91623
        * optabs.c (expand_vec_cond_expr): If op0 is a VECTOR_CST and only
        EQ_EXPR/NE_EXPR is supported, verify that op0 only contains
        zeros or negative elements and use NE_EXPR instead of LT_EXPR against
        zero vector.

        PR lto/91572
        * tree.c (find_decls_types_in_node): Also walk TREE_PURPOSE of
        GIMPLE_ASM TREE_LIST operands.

2019-08-31  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/generic.texi (Unary and Binary Expressions): Mark up
        an instance of TYPE_MIN.

2019-08-31  Stafford Horne  <shorne@gmail.com>

        * config/or1k/constraints.md (t): New constraint.
        * config/or1k/or1k.h (GOT_REGS): New register class.
        * config/or1k/or1k.md (set_got_tmp, set_got): Use t contraint.

2019-08-30  Jim Wilson  <jimw@sifive.com>

        * config/riscv/riscv.c (riscv_option_override): If -msave-restore
        and -fpic and -mplt then disable -msave-restore and warn.

2019-08-30  Martin Sebor  <msebor@redhat.com>

        PR middle-end/91599
        * tree-ssa-strlen.c (handle_store): Use a fallback location if
        the statement doesn't have one.
        * gimple-pretty-print.c (percent_G_format): Same.

        PR middle-end/91584
        * tree-vrp.c (vrp_prop::check_mem_ref): Normalize type domain bounds
        before using them to validate MEM_REF offset.

2019-08-30  Marek Polacek  <polacek@redhat.com>

        * doc/invoke.texi (-Wvolatile): Use @code for volatile.

2019-08-30  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * config/arm/arm.md (unaligned_loaddi,
        unaligned_storedi): New unspec insn patterns.
        * config/arm/neon.md (unaligned_storev8qi): Likewise.
        * config/arm/arm.c (gen_cpymem_ldrd_strd): Use unaligned_loaddi
        and unaligned_storedi for 4-byte aligned memory.
        (arm_block_set_aligned_vect): Use unaligned_storev8qi for
        4-byte aligned memory.

2019-08-30  Martin Jambor  <mjambor@suse.cz>

        tree-optimization/91579
        * tree-tailcall.c (tailr_arg_needs_copy): New variable.
        (find_tail_calls): Allocate tailr_arg_needs_copy and set its bits as
        appropriate.
        (arg_needs_copy_p): Removed.
        (eliminate_tail_call): Test tailr_arg_needs_copy instead of calling
        arg_needs_copy_p.
        (tree_optimize_tail_calls_1): Likewise.  Free tailr_arg_needs_copy.

2019-08-29  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386-features.c
        (general_scalar_chain::compute_convert_gain):
        Correct cost for double-word shifts.
        (general_scalar_to_vector_candidate_p): Reject count operands
        greater or equal to mode bitsize.

2019-08-29  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (inline_secondary_memory_needed): Return true
        for moves between SSE and non-general registers and between
        mask and non-general registers.
        (ix86_register_move_cost): Remove stalled comment.

2019-08-29  Richard Biener  <rguenther@suse.de>

        * config/i386/i386-features.c (general_scalar_chain::convert_insn):
        Guard debug work with MAY_HAVE_DEBUG_BIND_INSNS.

2019-08-29  Richard Biener  <rguenther@suse.de>

        PR bootstrap/91580
        * config/i386/i386-features.c (general_scalar_chain::convert_insn):
        Do not emit scalar copies for debug-insns, instead replace
        their uses with the reg copy used in the chain or reset them
        if there is a reaching definition outside of the chain as well.

2019-08-29  Jakub Jelinek  <jakub@redhat.com>

        PR target/91560
        * config/i386/i386-expand.c (expand_vec_perm_movs,
        expand_vec_perm_blend, expand_vec_perm_vpermil,
        expand_vec_perm_pshufb, expand_vec_perm_1,
        expand_vec_perm_pshuflw_pshufhw, expand_vec_perm_palignr,
        expand_vec_perm_interleave2, expand_vec_perm_vpermq_perm_1,
        expand_vec_perm_vperm2f128, expand_vec_perm_interleave3,
        expand_vec_perm_vperm2f128_vblend, expand_vec_perm_2vperm2f128_vshuf,
        expand_vec_perm_even_odd, expand_vec_perm_broadcast): Adjust function
        comments - replace ix86_expand_vec_perm_builtin_1 with
        ix86_expand_vec_perm_const_1.
        (expand_vec_perm2_vperm2f128_vblend): New function.
        (ix86_expand_vec_perm_const_1): New forward declaration.  Call
        expand_vec_perm2_vperm2f128_vblend as last resort.
        (canonicalize_perm): Formatting fix.

        PR tree-optimization/91351
        * tree-cfg.c (generate_range_test): Use range_check_type instead of
        unsigned_type_for.
        * tree-cfgcleanup.c (convert_single_case_switch): Punt if
        range_check_type returns NULL.
        * tree-switch-conversion.c (switch_conversion::build_one_array):
        Use range_check_type instead of unsigned_type_for, don't perform
        linear opt if it returns NULL.
        (bit_test_cluster::find_bit_tests): Formatting fix.
        (bit_test_cluster::emit): Use range_check_type instead of
        unsigned_type_for.
        (switch_decision_tree::try_switch_expansion): Punt if range_check_type
        returns NULL.

2019-08-29  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91568
        * tree-vectorizer.h (_slp_tree::max_nunits): Add.
        (vect_update_max_nunits): Add overload for poly_uint64.
        * tree-vect-slp.c (vect_create_new_slp_node): Initialize it.
        (vect_build_slp_tree): Record max_nunits into the subtree
        and merge it upwards.
        (vect_print_slp_tree): Print max_nunits.

2019-08-28  Marek Polacek  <polacek@redhat.com>

        Implement P1152R4: Deprecating some uses of volatile.
        PR c++/91361
        * doc/invoke.texi: Document -Wvolatile.

2019-08-28  Marek Polacek  <polacek@redhat.com>

        PR c++/91360 - Implement C++20 P1143R2: constinit.
        * doc/invoke.texi: Document -Wc++20-compat.

2019-08-28  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/91457
        * builtins.c (component_size): New function.
        (compute_objsize): Add argument. Handle ARRAY_REF and COMPONENT_REF.
        * builtins.h (compute_objsize): Add argument.
        * tree-ssa-strlen.c (handle_store): Handle no-warning bit.
        * tree-vrp.c (vrp_prop::check_array_ref): Return warning result.
        (vrp_prop::check_mem_ref): Same.
        (vrp_prop::search_for_addr_array): Set no-warning bit.
        (check_array_bounds): Same.

2019-08-28  Martin Sebor  <msebor@redhat.com>

        PR driver/80545
        * opts-common.c (option_enabled): Correct checking for language
        options.

2019-08-28  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_register_move_cost): Do not
        limit the cost of moves to/from XMM register to minimum 8.

2019-08-28  Martin Jambor  <mjambor@suse.cz>

        PR ipa/91468
        * ipa-cp.c (merge_agg_lats_step): Removed redundant test, made a
        checking assert a normal assert to test it really is redundant.
        * ipa-prop.c (compute_complex_assign_jump_func): Removed
        redundant test.
        (update_jump_functions_after_inlining): Removed combining unary
        arithmetic operations with an ancestor jump function.
        (ipcp_modif_dom_walker::before_dom_children): Fix wrong use of rhs
        instead of t.

2019-08-28  Richard Biener  <rguenther@suse.de>

        * config/i386/i386-features.c (convert_scalars_to_vector): Do not
        add the MD problem.

2019-08-28  Bernd Edlinger  <bernd.edlinger@hotmail.de>
            Richard Biener  <rguenther@suse.de>

        * expr.c (expand_assignment): Handle misaligned DECLs.
        (expand_expr_real_1): Handle FUNCTION_DECL as unaligned.
        * function.c (assign_parm_adjust_stack_rtl): Check movmisalign optab
        too.
        (assign_parm_setup_stack): Allocate properly aligned stack slots.
        * varasm.c (build_constant_desc): Align constants of misaligned types.
        * config/arm/predicates.md (aligned_operand): New predicate.
        * config/arm/arm.md (movdi, movsi, movhi, movhf, movsf, movdf): Use
        aligned_operand to check restrictions on memory addresses.
        * config/arm/neon.md (movti, mov<VSTRUCT>, mov<VH>): Likewise.
        * config/arm/vec-common.md (mov<VALL>): Likewise.

2019-08-28  Jakub Jelinek  <jakub@redhat.com>

        PR libgomp/91530
        * config/i386/sse.md (vec_shl_<mode>, vec_shr_<mode>): Use
        V_128 iterator instead of VI_128.

2019-08-28  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/90970
        * builtins.c (check_access): Remove assignment to maxread
        as it hasn't been used since when it was introduced in r255755.

2019-08-27  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/91567
        * gimple-ssa-sprintf.c (get_string_length): Handle more forms of lengths
        of unknown strings.
        * vr-values.c (vr_values::extract_range_basic): Set strlen upper bound
        to PTRDIFF_MAX - 2.

2019-08-27  Jeff Law  <law@redhat.com>

        * tree-ssa-strlen.c (printf_strlen_execute): Initialize
        the loop optimizer and SCEV before sizing ssa_ver_to_stridx.

2019-08-27  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/91528
        * config/i386/i386-features.c (convert_scalars_to_vector):
        Update crtl->stack_realign_needed, crtl->stack_realign_tried and
        crtl->stack_realign_processed.  Update crtl->drap_reg by calling
        targetm.calls.get_drap_rtx.  If drap_rtx is non-null then
        Update crtl->args.internal_arg_pointer and call fixup_tail_calls.

2019-08-27  Richard Biener  <rguenther@suse.de>

        * config/i386/i386-features.h
        (general_scalar_chain::~general_scalar_chain): Add.
        (general_scalar_chain::insns_conv): New bitmap.
        (general_scalar_chain::n_sse_to_integer): New.
        (general_scalar_chain::n_integer_to_sse): Likewise.
        (general_scalar_chain::make_vector_copies): Adjust signature.
        * config/i386/i386-features.c
        (general_scalar_chain::general_scalar_chain): Outline,
        initialize new members.
        (general_scalar_chain::~general_scalar_chain): New.
        (general_scalar_chain::mark_dual_mode_def): Record insns
        we need to insert conversions at and count them.
        (general_scalar_chain::compute_convert_gain): Account
        for conversion instructions at chain boundary.
        (general_scalar_chain::make_vector_copies): Generate a single
        copy for a def by a specific insn.
        (general_scalar_chain::convert_registers): First populate
        defs_map, then make copies at out-of chain insns.

2019-08-27  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.md (stack_protect_set_insn): Add security-related
        comment.
        * config/aarch64/aarch64.md (stack_protect_set_<mode>): Likewise.

2019-08-27  Martin Liska  <mliska@suse.cz>

        * cgraph.c (cgraph_node::remove): Remove dead assignment before
        loop.
        * config/i386/i386-features.c (scalar_chain::emit_conversion_insns):
        Enclose in anonymous namespace.
        * config/i386/x86-tune-costs.h (struct processor_costs): Wrap
        hard_register initialization in braces.
        * tree-vrp.h (value_range_base::supports_type_p): Return false
        for function with boolean return type.

2019-08-26  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (emit_i387_cw_initialization)
        <case I387_CW_ROUNDEVEN>: Fix masking operand value.

2019-08-26  Martin Sebor  <msebor@redhat.com>

        PR c++/83431
        * gimple-ssa-sprintf.c (pass_data_sprintf_length): Remove object.
        (sprintf_dom_walker): Remove class.
        (get_int_range): Make argument const.
        (directive::fmtfunc, directive::set_precision): Same.
        (format_none): Same.
        (build_intmax_type_nodes): Same.
        (adjust_range_for_overflow): Same.
        (format_floating): Same.
        (format_character): Same.
        (format_string): Same.
        (format_plain): Same.
        (get_int_range): Cast away constness.
        (format_integer): Same.
        (get_string_length): Call get_range_strlen_dynamic.  Handle
        null lendata.maxbound.
        (should_warn_p): Adjust argument scope qualifier.
        (maybe_warn): Same.
        (format_directive): Same.
        (parse_directive): Same.
        (is_call_safe): Same.
        (try_substitute_return_value): Same.
        (sprintf_dom_walker::handle_printf_call): Rename...
        (handle_printf_call): ...to this.  Initialize target to host charmap
        here instead of in pass_sprintf_length::execute.
        (struct call_info): Make global.
        (sprintf_dom_walker::compute_format_length): Make global.
        (sprintf_dom_walker::handle_gimple_call): Same.
        * passes.def (pass_sprintf_length): Replace with pass_strlen.
        * print-rtl.c (print_pattern): Reduce the number of spaces to
        avoid -Wformat-truncation.
        * tree-pass.h (make_pass_warn_printf): New function.
        * tree-ssa-strlen.c (strlen_optimize): New variable.
        (get_string_length): Add comments.
        (get_range_strlen_dynamic): New function.
        (check_and_optimize_call): New function.
        (handle_integral_assign): New function.
        (strlen_check_and_optimize_stmt): Factor code out into
        strlen_check_and_optimize_call and handle_integral_assign.
        (strlen_dom_walker::evrp): New member.
        (strlen_dom_walker::before_dom_children): Use evrp member.
        (strlen_dom_walker::after_dom_children): Use evrp member.
        (printf_strlen_execute): New function.
        (pass_strlen::gate): Update to handle printf calls.
        (dump_strlen_info): New function.
        (pass_data_warn_printf): New variable.
        (pass_warn_printf): New class.
        * tree-ssa-strlen.h (get_range_strlen_dynamic): Declare.
        (handle_printf_call): Same.
        * tree-vrp.c (value_range_base::type): Adjust assertion.
        * vr-values.c (vr_values::update_value_range): Use type of the first
        argument rather than the second.

2019-08-26  Richard Biener  <rguenther@suse.de>

        * config/i386/i386-features.c (general_remove_non_convertible_regs):
        Remove.
        (convert_scalars_to_vector): Do not call it.

2019-08-26  Tejas Joshi  <tejasjoshi9673@gmail.com>
            Uros Bizjak  <ubizjak@gmail.com>

        * builtins.c (mathfn_built_in_2): Change CASE_MATHFN to
        CASE_MATHFN_FLOATN for roundeven.
        * config/i386/i386.c (ix86_i387_mode_needed): Add case
        I387_ROUNDEVEN.
        (ix86_mode_needed): Likewise.
        (ix86_mode_after): Likewise.
        (ix86_mode_entry): Likewise.
        (ix86_mode_exit): Likewise.
        (ix86_emit_mode_set): Likewise.
        (emit_i387_cw_initialization): Add case I387_CW_ROUNDEVEN.
        * config/i386/i386.h (ix86_stack_slot): Add SLOT_CW_ROUNDEVEN.
        (ix86_entity): Add I387_ROUNDEVEN.
        (NUM_MODES_FOR_MODE_SWITCHING): Add I387_CW_ANY.
        * config/i386/i386.md: Define UNSPEC_FRNDINT_ROUNDEVEN.
        (define_int_iterator): Likewise.
        (define_int_attr): Likewise for rounding_insn, rounding and ROUNDING.
        (define_constant): Define ROUND_ROUNDEVEN mode.
        (define_attr): Add roundeven mode for i387_cw.
        (<rouding_insn><mode>2): Add condition for ROUND_ROUNDEVEN.
        * internal-fn.def (ROUNDEVEN): New builtin function.
        * optabs.def (roundeven_optab): New optab.

2019-08-26  Tejas Joshi  <tejasjoshi9673@gmail.com>

        * builtins.c (mathfn_built_in_2): Added CASE_MATHFN_FLOATN
        for ROUNDEVEN.
        * builtins.def: Added function definitions for roundeven function
        variants.
        * fold-const-call.c (fold_const_call_ss): Added case for roundeven
        function call.  Adjust condition for floor, ceil, trunc and round.
        * fold-const.c (negate_mathfn_p): Added case for roundeven function.
        (tree_call_nonnegative_warnv_p): Added case for roundeven function.
        (integer_valued_real_call_p): Added case for roundeven function.
        * real.c (is_even): New function. Returns true if real number is even,
        otherwise returns false.
        (is_halfway_below): New function. Returns true if real number is
        halfway between two integers, else return false.
        (real_roundeven): New function. Round real number to nearest integer,
        rounding halfway cases towards even.
        * real.h (real_value): Added descriptive comments.  Added function
        declaration for roundeven function.
        * doc/extend.texi (Other Builtins): List roundeven variants among
        functions which can be handled as builtins.

2019-08-26  Richard Biener  <rguenther@suse.de>

        PR target/91522
        PR target/91527
        * config/i386/i386-features.h (general_scalar_chain::defs_map):
        New member.
        (general_scalar_chain::replace_with_subreg): Remove.
        (general_scalar_chain::replace_with_subreg_in_insn): Likewise.
        (general_scalar_chain::convert_reg): Adjust signature.
        * config/i386/i386-features.c (scalar_chain::add_insn): Do not
        iterate over all defs of a reg.
        (general_scalar_chain::replace_with_subreg): Remove.
        (general_scalar_chain::replace_with_subreg_in_insn): Likewise.
        (general_scalar_chain::make_vector_copies): Populate defs_map,
        place copy only after defs that are used as vectors in the chain.
        (general_scalar_chain::convert_reg): Emit a copy for a specific
        def in a specific instruction.
        (general_scalar_chain::convert_op): All reg uses are converted here.
        (general_scalar_chain::convert_insn): Emit copies for scalar
        uses of defs here.  Replace uses with the copies we created.
        Replace and convert the def.  Adjust REG_DEAD notes, remove
        REG_EQUIV/EQUAL notes.
        (general_scalar_chain::convert_registers): Only handle copies
        into the chain here.

2019-08-26  Robin Dapp  <rdapp@linux.ibm.com>

        * match.pd: Add (T)(A) + CST -> (T)(A + CST).

2019-08-26  Robin Dapp  <rdapp@linux.ibm.com>

        * gimple-loop-versioning.cc (loop_versioning::record_address_fragment):
        Add nop_convert case.
        * tree-ssa-propagate.c (substitute_and_fold_dom_walker::before_dom_children):
        Fold all statements if requested.
        * tree-ssa-propagate.h (class substitute_and_fold_engine):
        Allow to fold all statements.
        * tree-vrp.c (class vrp_folder):
        Let substitute_and_fold_engine fold all statements.

2019-08-26  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91526
        * passes.def: Note that after late FRE we do TODO_update_address_taken.
        * tree-ssa-sccvn.c (pass_fre::execute): In late mode schedule
        TODO_update_address_taken.

2019-08-26  Gerald Pfeifer  <gerald@pfeifer.com>

        * config/i386/gmm_malloc.h: Only use <errno.h> and errno if
        __STDC_HOSTED__.

2019-08-23  Mihailo Stojanovic  <mistojanovic@wavecomp.com>

        * config/mips/mips.md (mips_get_fcsr, *mips_get_fcsr): Use SI
        machine mode for unspec_volatile operand.

2019-08-23  Wilco Dijkstra  <wdijkstr@arm.com>

        * gcc/doc/invoke.texi (mneon-for-64bits): Deprecate option.
        * gcc/config/arm/arm.opt (mneon-for-64bits): Deprecate option.
        * gcc/config/arm/arm.h (TARGET_PREFER_NEON_64BITS): Remove.
        (prefer_neon_for_64bits): Remove.
        * gcc/config/arm/arm.c (prefer_neon_for_64bits): Remove.
        (tune_params): Remove PREF_NEON_64_FALSE uses.
        (arm_option_override): Remove prefer_neon selection code.
        (arm_print_tune_info): Remove prefer_neon_for_64bits.
        * gcc/config/arm/arm-protos.h (tune_params): Remove
        prefer_neon_for_64bits.
        (prefer_neon_for_64bits): Remove.

2019-08-23  Iain Sandoe  <iain@sandoe.co.uk>

        PR pch/61250
        * ggc-page.c (ggc_pch_read): Read the ggc_pch_ondisk structure
        and issue any diagnostics needed before collecting the pre-PCH
        state.

2019-08-23  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/91283
        * common.opt (fexcess-precision=): Add Optimization flag.  Use
        flag_excess_precision variable instead of
        flag_excess_precision_cmdline.
        * flags.h (class target_flag_state): Remove x_flag_excess_precision
        member.
        (flag_excess_precision): Don't define.
        * langhooks.c (lhd_post_options): Set flag_excess_precision instead of
        flag_excess_precision_cmdline.  Remove comment.
        * opts.c (set_fast_math_flags): Use frontend_set_flag_excess_precision
        and x_flag_excess_precision instead of
        frontend_set_flag_excess_precision_cmdline and
        x_flag_excess_precision_cmdline.
        (fast_math_flags_set_p): Use x_flag_excess_precision instead of
        x_flag_excess_precision_cmdline.
        * toplev.c (init_excess_precision): Remove.
        (lang_dependent_init_target): Don't call it.

2019-08-23  Martin Liska  <mliska@suse.cz>

        * lto-wrapper.c (run_gcc): When setting jobserver
        set also parallel to 1.  This was done so before r273908.

2019-08-23  Dennis Zhang  <dennis.zhang@arm.com>

        * config/arm/arm-cpus.in (cortex-m35p): New entry.
        (cortex-a76ae): Likewise.
        (cortex-a77): Likewise
        * config/arm/arm-tables.opt: Regenerate.
        * config/arm/arm-tune.md: Likewise.
        * doc/invoke.texi (ARM Options): Document cortex-m35p, cortx-a76ae,
        cortex-a77 CPU options.

2019-08-23  Martin Liska  <mliska@suse.cz>

        * profile.c (instrument_values): Do not set
        0 as last argument.
        * tree-profile.c (gimple_gen_interval_profiler): Remove
        last argument.
        (gimple_gen_pow2_profiler): Likewise.
        (gimple_gen_topn_values_profiler): Likewise.
        (gimple_gen_ic_profiler): Likewise.
        (gimple_gen_time_profiler): Likewise.
        (gimple_gen_average_profiler): Likewise.
        (gimple_gen_ior_profiler): Likewise.
        * value-prof.c (dump_histogram_value): Use default
        in switch statement instead of HIST_TYPE_MAX.
        (stream_in_histogram_value): Likewise.
        (gimple_duplicate_stmt_histograms): Do not
        use NULL for implicitly set arguments.
        (gimple_divmod_values_to_profile): Do not use
        reserve+quick_push.
        (gimple_indirect_call_to_profile): Likewise.
        (gimple_find_values_to_profile): Use implicit
        function call arguments.
        * value-prof.h (gimple_alloc_histogram_value):
        Set default values.
        (gimple_gen_interval_profiler): Remove last argument.
        (gimple_gen_pow2_profiler): Likewise.
        (gimple_gen_topn_values_profiler): Likewise.
        (gimple_gen_ic_profiler): Likewise.
        (gimple_gen_time_profiler): Likewise.
        (gimple_gen_average_profiler): Likewise.
        (gimple_gen_ior_profiler): Likewise.

2019-08-22  Martin Sebor  <msebor@redhat.com>

        PR middle-end/91490
        * builtins.c (c_strlen): Rename argument and introduce new local.
        Set no-warning bit on original argument.
        * expr.c (string_constant): Pass argument type to fold_ctor_reference.
        Fold empty and zero constructors into empty strings.
        * gimple-fold.c (fold_nonarray_ctor_reference): Return a STRING_CST
        for missing initializers.
        * tree.c (build_string_literal): Handle optional argument.
        * tree.h (build_string_literal): Add defaulted argument.
        * gimple-ssa-warn-restrict.c (maybe_diag_access_bounds): Check
        no-warning bit on original expression.

2019-08-22  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/91481
        * config/rs6000/rs6000.md (unspec): Delete UNSPEC_DARN, UNSPEC_DARN_32,
        and UNSPEC_DARN_RAW.
        (unspecv): New enumerator values UNSPECV_DARN, UNSPECV_DARN_32, and
        UNSPECV_DARN_RAW.
        (darn_32): Use an unspec_volatile, and UNSPECV_DARN_32.
        (darn_raw): Use an unspec_volatile, and UNSPECV_DARN_RAW.
        (darn): Use an unspec_volatile, and UNSPECV_DARN.

2019-08-22  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/altivec.md (unspec): Delete UNSPEC_DARN, UNSPEC_DARN_32,
        UNSPEC_DARN_RAW, UNSPEC_CMPRB, UNSPEC_CMPRB2, UNSPEC_CMPEQB; move to...
        * config/rs6000/rs6000.md (unspec): ... here.
        * config/rs6000/altivec.md (darn_32, darn_raw, darn, cmprb,
        *cmprb_internal, setb_signed, setb_unsigned, cmprb2, *cmprb2_internal,
        cmpeqb, *cmpeqb_internal): Delete, move to...
        * config/rs6000/rs6000.md (darn_32, darn_raw, darn, cmprb,
        *cmprb_internal, setb_signed, setb_unsigned, cmprb2, *cmprb2_internal,
        cmpeqb, *cmpeqb_internal): ... here.

2019-08-22  Kyrylo Tkachov <kyrylo.tkachov@arm.com>

        * config/arm/arm_acle.h: Use arch=armv8-a+crc+simd pragma for CRC32
        intrinsics if __ARM_FP.
        Use __ARM_FEATURE_CRC32 ifdef guard.

2019-08-22  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/arm/arm.md (neon_for_64bits): Remove.
        (avoid_neon_for_64bits): Remove.
        (arm_adddi3): Always split early.
        (arm_subdi3): Always split early.
        (negdi2): Remove Neon expansion.
        (split zero_extend): Split before reload.
        (split sign_extend): Split before reload.

2019-08-22  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/arm/iterators.md (qhs_extenddi_cstr): Update.
        (qhs_extenddi_cstr): Likewise.
        * config/arm/arm.md (ashldi3): Always expand early.
        (ashlsi3): Likewise.
        (ashrsi3): Likewise.
        (zero_extend<mode>di2): Remove Neon variants.
        (extend<mode>di2): Likewise.
        * config/arm/neon.md (ashldi3_neon_noclobber): Remove.
        (signed_shift_di3_neon): Likewise.
        (unsigned_shift_di3_neon): Likewise.
        (ashrdi3_neon_imm_noclobber): Likewise.
        (lshrdi3_neon_imm_noclobber): Likewise.
        (<shift>di3_neon): Likewise.
        (split extend): Remove DI extend split patterns.

2019-08-22  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/arm/arm.md (split and/eor/ior): Remove Neon check.
        (split not): Add DImode not splitter.
        (anddi3): Remove pattern.
        (anddi3_insn): Likewise.
        (anddi_zesidi_di): Likewise.
        (anddi_sesdi_di): Likewise.
        (anddi_notdi_di): Likewise.
        (anddi_notzesidi_di): Likewise.
        (anddi_notsesidi_di): Likewise.
        (iordi3): Likewise.
        (iordi3_insn): Likewise.
        (iordi_zesidi_di): Likewise.
        (iordi_sesidi_di): Likewise.
        (xordi3): Likewise.
        (xordi3_insn): Likewise.
        (xordi_sesidi_di): Likewise.
        (xordi_zesidi_di): Likewise.
        (one_cmpldi2): Likewise.
        (one_cmpldi2_insn): Likewise.
        * config/arm/constraints.md: Remove De, Df, Dg constraints.
        * config/arm/iwmmxt.md (iwmmxt_iordi3): Remove general register
        alternative.
        (iwmmxt_xordi3): Likewise.
        (iwmmxt_anddi3): Likewise.
        * config/arm/neon.md (orndi3_neon): Remove pattern.
        (anddi_notdi_di): Likewise.
        * config/arm/predicates.md (arm_anddi_operand_neon): Remove.
        (arm_iordi_operand_neon): Likewise.
        (arm_xordi_operand_neon): Likewise.
        * config/arm/thumb2.md(iordi_notdi_di): Remove pattern.
        (iordi_notzesidi_di): Likewise.
        (iordi_notdi_zesidi): Likewise.
        (iordi_notsesidi_di): Likewise.

2019-08-22  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.md (iorsi3_compare0): Add alternative for 16-bit thumb
        insn.
        (iorsi3_compare0_scratch): Likewise.

2019-08-22  Sylvia Taylor  <sylvia.taylor@arm.com>

        * config/aarch64/aarch64-simd-builtins.def:
        (ld1x4): New.
        (st1x4): Likewise.
        * config/aarch64/aarch64-simd.md:
        (aarch64_ld1x4<VALLDIF:mode>): New pattern.
        (aarch64_st1x4<VALLDIF:mode>): Likewise.
        (aarch64_ld1_x4_<mode>): Likewise.
        (aarch64_st1_x4_<mode>): Likewise.
        * config/aarch64/arm_neon.h:
        (vld1_s8_x4): New function.
        (vld1q_s8_x4): Likewise.
        (vld1_s16_x4): Likewise.
        (vld1q_s16_x4): Likewise.
        (vld1_s32_x4): Likewise.
        (vld1q_s32_x4): Likewise.
        (vld1_u8_x4): Likewise.
        (vld1q_u8_x4): Likewise.
        (vld1_u16_x4): Likewise.
        (vld1q_u16_x4): Likewise.
        (vld1_u32_x4): Likewise.
        (vld1q_u32_x4): Likewise.
        (vld1_f16_x4): Likewise.
        (vld1q_f16_x4): Likewise.
        (vld1_f32_x4): Likewise.
        (vld1q_f32_x4): Likewise.
        (vld1_p8_x4): Likewise.
        (vld1q_p8_x4): Likewise.
        (vld1_p16_x4): Likewise.
        (vld1q_p16_x4): Likewise.
        (vld1_s64_x4): Likewise.
        (vld1_u64_x4): Likewise.
        (vld1_p64_x4): Likewise.
        (vld1q_s64_x4): Likewise.
        (vld1q_u64_x4): Likewise.
        (vld1q_p64_x4): Likewise.
        (vld1_f64_x4): Likewise.
        (vld1q_f64_x4): Likewise.
        (vst1_s8_x4): Likewise.
        (vst1q_s8_x4): Likewise.
        (vst1_s16_x4): Likewise.
        (vst1q_s16_x4): Likewise.
        (vst1_s32_x4): Likewise.
        (vst1q_s32_x4): Likewise.
        (vst1_u8_x4): Likewise.
        (vst1q_u8_x4): Likewise.
        (vst1_u16_x4): Likewise.
        (vst1q_u16_x4): Likewise.
        (vst1_u32_x4): Likewise.
        (vst1q_u32_x4): Likewise.
        (vst1_f16_x4): Likewise.
        (vst1q_f16_x4): Likewise.
        (vst1_f32_x4): Likewise.
        (vst1q_f32_x4): Likewise.
        (vst1_p8_x4): Likewise.
        (vst1q_p8_x4): Likewise.
        (vst1_p16_x4): Likewise.
        (vst1q_p16_x4): Likewise.
        (vst1_s64_x4): Likewise.
        (vst1_u64_x4): Likewise.
        (vst1_p64_x4): Likewise.
        (vst1q_s64_x4): Likewise.
        (vst1q_u64_x4): Likewise.
        (vst1q_p64_x4): Likewise.
        (vst1_f64_x4): Likewise.
        (vst1q_f64_x4): Likewise.

2019-08-22  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * config/aarch64/aarch64-sve.md (vcond_mask): Add "@".

2019-08-22  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
            Richard Sandiford  <richard.sandiford@arm.com>

        PR target/88839
        * config/aarch64/aarch64.c (aarch64_evpc_sel): New function.
        (aarch64_expand_vec_perm_const_1): Call aarch64_evpc_sel.

2019-08-21  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR target/90724
        * config/aarch64/aarch64.c (aarch64_gen_compare_reg_maybe_ze): Force y
        in reg if it fails aarch64_plus_operand predicate.

2019-08-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91482
        * tree-ssa-ccp.c (ccp_folder::fold_stmt): Remove useless
        BUILT_IN_ASSUME_ALIGNED calls.

2019-08-21  Richard Biener  <rguenther@suse.de>

        PR target/91498
        PR target/91503
        * config/i386/i386-features.c
        (general_scalar_chain::make_vector_copies): Copy stack temporary
        rtx when using it multiple times.
        (general_scalar_chain::convert_reg): Likewise.

2019-08-20  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * function.c (assign_parm_find_stack_rtl): Use known_eq instead of ==.

2019-08-20  Matthew Beliveau  <mbelivea@redhat.com>

        * tree-ssa-dse.c (dse_optimize_redundant_stores): Improved check to
        catch more redundant zero initialization cases.
        (dse_dom_walker::dse_optimize_stmt): Likewise.

2019-08-20  Richard Biener  <rguenther@suse.de>

        PR lto/91307
        * ipa.c (cgraph_build_static_cdtor_1): Use names not recognizable
        by collect2 when targetm.have_ctors_dtors which avoids dragging
        in temporary filenames from LTO input objects.

2019-08-20  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/37242
        * tree-ssa-sccvn.c (visit_nary_op): Also CSE (T)(a + b)
        to (T)a + (T)b if we know that a + b does not overflow.

2019-08-20  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/91347
        * dse.c (scan_insn): Call add_wild_read for non-const/memset tail calls
        before reload if HARD_FRAME_POINTER_IS_ARG_POINTER.

2019-08-20  Richard Sandiford  <richard.sandiford@arm.com>

        * calls.h (function_arg_info): Add a pass_by_reference field,
        defaulting to false.
        * calls.c (apply_pass_by_reference_rules): Set pass_by_reference
        when applying pass-by-reference semantics.
        (initialize_argument_information): Likewise.
        (emit_library_call_value_1): Likewise.
        * function.c (assign_parm_data_one): Remove passed_pointer field.
        (assign_parm_find_data_types): Don't set it.
        (assign_parm_find_stack_rtl, assign_parm_adjust_stack_rtl)
        (assign_parm_setup_reg, assign_parms, gimplify_parameters): Use
        arg.pass_by_reference instead of passed_pointer.

2019-08-20  Richard Sandiford  <richard.sandiford@arm.com>

        * calls.c (emit_library_call_value_1): Merge arg and orig_arg
        into a single function_arg_info, updating its fields when we
        apply pass-by-reference and promotion semantics.  Use the
        function_arg_info to track the mode rather than keeping it in
        a separate local variable.
        (initialize_argument_information): Likewise.  Base the final
        arg_to_skip on this new function_arg_info rather than creating
        a new one from scratch.

2019-08-20  Richard Sandiford  <richard.sandiford@arm.com>

        * function.c (assign_parm_data_one): Replace passed_type,
        promoted_mode and named_arg with a function_arg_info field.
        (assign_parm_find_data_types): Remove local variables and
        assign directly to "data".  Make data->passed_mode shadow
        data->arg.mode until promotion, then assign the promoted
        mode to data->arg.mode.
        (assign_parms_setup_varargs, assign_parm_find_entry_rtl)
        (assign_parm_find_stack_rtl, assign_parm_adjust_entry_rtl)
        (assign_parm_remove_parallels, assign_parm_setup_block_p)
        (assign_parm_setup_block, assign_parm_setup_reg)
        (assign_parm_setup_stack, assign_parms, gimplify_parameters): Use
        arg.mode instead of promoted_mode, arg.type instead of passed_type
        and arg.named instead of named_arg.  Use data->arg for
        function_arg_info structures that had the field values passed_type,
        promoted_mode and named_arg.  Base other function_arg_infos on
        data->arg, changing the necessary properties.

2019-08-20  Richard Sandiford  <richard.sandiford@arm.com>

        * calls.h (apply_pass_by_reference_rules): Declare.
        * calls.c (apply_pass_by_reference_rules): New function.
        * config/c6x/c6x.c (c6x_call_saved_register_used): Use it.
        * config/rs6000/rs6000-call.c (rs6000_parm_needs_stack): Likewise.
        * config/s390/s390.c (s390_call_saved_register_used): Likewise.
        * function.c (assign_parm_find_data_types): Likewise.
        * var-tracking.c (prepare_call_arguments): Likewise.

2019-08-20  Richard Sandiford  <richard.sandiford@arm.com>

        * target.def (must_pass_in_stack): Take a function_arg_info instead
        of a mode and a type.
        * doc/tm.texi: Regenerate.
        * calls.h (must_pass_in_stack_var_size): Take a function_arg_info
        instead of a mode and a type.
        (must_pass_in_stack_var_size_or_pad): Likewise.
        * calls.c (must_pass_in_stack_var_size): Likewise.
        (must_pass_in_stack_var_size_or_pad): Likewise.
        (initialize_argument_information): Update call to
        targetm.calls.must_pass_in_stack.
        (must_pass_va_arg_on_stack): Likewise.
        * function.c (assign_parm_find_entry_rtl): Likewise.
        * targhooks.c (hook_pass_by_reference_must_pass_in_stack): Likewise.
        * config/alpha/alpha.c (alpha_function_arg): Likewise.
        (alpha_function_arg_advance): Likewise.
        * config/cr16/cr16.c (cr16_function_arg): Likewise.
        (cr16_function_arg_advance): Likewise.
        * config/cris/cris.c (cris_pass_by_reference): Likewise.
        (cris_arg_partial_bytes): Likewise.
        * config/iq2000/iq2000.c (iq2000_pass_by_reference): Likewise.
        * config/lm32/lm32.c (lm32_function_arg): Likewise.
        * config/mcore/mcore.c (mcore_num_arg_regs): Likewise.
        (mcore_function_arg, mcore_arg_partial_bytes): Likewise.
        * config/mips/mips.c (mips_pass_by_reference): Likewise.
        * config/mmix/mmix.c (mmix_function_arg_advance): Likewise.
        (mmix_function_arg_1, mmix_pass_by_reference): Likewise.
        * config/sh/sh.c (sh_pass_by_reference): Likewise.
        * config/stormy16/stormy16.c (xstormy16_function_arg): Likewise.
        * config/xtensa/xtensa.c (xtensa_function_arg_advance): Likewise.
        * config/arm/arm.c (arm_must_pass_in_stack): Take a function_arg_info
        instead of a mode and a type.
        * config/fr30/fr30.c (fr30_must_pass_in_stack): Likewise.
        (fr30_num_arg_regs): Likewise.
        (fr30_setup_incoming_varargs): Update calls accordingly.
        (fr30_arg_partial_bytes, fr30_function_arg): Likewise.
        (fr30_function_arg_advance): Likewise.
        * config/frv/frv.c (frv_must_pass_in_stack): Take a function_arg_info
        instead of a mode and a type.
        * config/gcn/gcn.c (num_arg_regs): Likewise.
        (gcn_function_arg, gcn_function_arg_advance): Update calls to
        num_arg_regs and targetm.calls.must_pass_in_stack.
        (gcn_arg_partial_bytes): Likewise.
        * config/i386/i386.c (ix86_must_pass_in_stack): Take a
        function_arg_info instead of a mode and a type.
        (classify_argument): Update call accordingly.
        * config/nds32/nds32.c (nds32_must_pass_in_stack): Take a
        function_arg_info instead of a mode and a type.
        * config/rs6000/rs6000-internal.h (rs6000_must_pass_in_stack):
        Likewise.
        * config/rs6000/rs6000-call.c (rs6000_must_pass_in_stack): Likewise.
        (rs6000_parm_needs_stack): Update call accordingly.
        (setup_incoming_varargs): Likewise.

2019-08-20  Richard Sandiford  <richard.sandiford@arm.com>

        * target.def (callee_copies): Take a function_arg_info instead
        of a mode, type and named flag.
        * doc/tm.texi: Regenerate.
        * targhooks.h (hook_callee_copies_named): Take a function_arg_info
        instead of a mode, type and named flag.
        (hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false): Delete.
        (hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true): Likewise.
        (hook_bool_CUMULATIVE_ARGS_arg_info_true): New function.
        * targhooks.c (hook_callee_copies_named): Take a function_arg_info
        instead of a mode, type and named flag.
        (hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false): Delete.
        (hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true): Likewise.
        (hook_bool_CUMULATIVE_ARGS_arg_info_true): New function.
        * calls.h (reference_callee_copied): Take a function_arg_info
        instead of a mode, type and named flag.
        * calls.c (reference_callee_copied): Likewise.
        (initialize_argument_information): Update call accordingly.
        (emit_library_call_value_1): Likewise.
        * function.c (gimplify_parameters): Likewise.
        * config/aarch64/aarch64.c (TARGET_CALLEE_COPIES): Define to
        hook_bool_CUMULATIVE_ARGS_arg_info_false instead of
        hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false.
        * config/c6x/c6x.c (c6x_callee_copies): Delete.
        (TARGET_CALLEE_COPIES): Define to
        hook_bool_CUMULATIVE_ARGS_arg_info_true instead.
        * config/epiphany/epiphany.c (TARGET_CALLEE_COPIES): Define to
        hook_bool_CUMULATIVE_ARGS_arg_info_true instead of
        hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true.
        * config/mips/mips.c (mips_callee_copies): Take a function_arg_info
        instead of a mode, type and named flag.
        * config/mmix/mmix.c (TARGET_CALLEE_COPIES): Define to
        hook_bool_CUMULATIVE_ARGS_arg_info_true instead of
        hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true.
        * config/mn10300/mn10300.c (TARGET_CALLEE_COPIES): Likewise.
        * config/msp430/msp430.c (msp430_callee_copies): Delete.
        (TARGET_CALLEE_COPIES): Define to
        hook_bool_CUMULATIVE_ARGS_arg_info_true instead.
        * config/pa/pa.c (pa_callee_copies): Take a function_arg_info
        instead of a mode, type and named flag.
        * config/sh/sh.c (sh_callee_copies): Likewise.
        * config/v850/v850.c (TARGET_CALLEE_COPIES): Define to
        hook_bool_CUMULATIVE_ARGS_arg_info_true instead of
        hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true.

2019-08-20  Richard Sandiford  <richard.sandiford@arm.com>

        * target.def (function_arg_advance): Take a function_arg_info instead
        of a mode, type and named flag.
        * doc/tm.texi: Regenerate.
        * targhooks.h (default_function_arg_advance): Take a function_arg_info
        instead of a mode, type and named flag.
        * targhooks.c (default_function_arg_advance): Likewise.
        * calls.c (initialize_argument_information): Update call to
        targetm.calls.function_arg_advance.
        (emit_library_call_value_1): Likewise.
        * dse.c (get_call_args): Likewise.
        * expr.c (block_move_libcall_safe_for_call_parm): Likewise.
        * function.c (assign_parms, gimplify_parameters): Likewise.
        * var-tracking.c (prepare_call_arguments): Likewise.
        * config/aarch64/aarch64.c (aarch64_function_arg_advance): Take a
        function_arg_info instead of a mode, type and named flag.
        (aarch64_setup_incoming_varargs): Update call accordingly.
        * config/alpha/alpha.c (alpha_function_arg_advance): Take a
        function_arg_info instead of a mode, type and named flag.
        (alpha_setup_incoming_varargs): Update call accordingly.
        * config/arc/arc.c (arc_function_arg_advance): Take a
        function_arg_info instead of a mode, type and named flag.
        (arc_setup_incoming_varargs): Update call accordingly.
        * config/arm/arm.c (arm_function_arg_advance): Take a
        function_arg_info instead of a mode, type and named flag.
        (cmse_func_args_or_return_in_stack): Update call accordingly.
        (arm_function_ok_for_sibcall): Likewise.
        (cmse_nonsecure_call_clear_caller_saved): Likewise.
        * config/avr/avr.c (avr_function_arg_advance): Take a
        function_arg_info instead of a mode, type and named flag.
        * config/bfin/bfin.c (bfin_function_arg_advance): Likewise.
        * config/c6x/c6x.c (c6x_function_arg_advance): Likewise.
        (c6x_call_saved_register_used): Update call accordingly.
        * config/cr16/cr16.c (cr16_function_arg_advance): Take a
        function_arg_info instead of a mode, type and named flag.
        * config/cris/cris.c (cris_function_arg_advance): Likewise.
        * config/csky/csky.c (csky_function_arg_advance): Likewise.
        (csky_setup_incoming_varargs): Update call accordingly.
        * config/epiphany/epiphany.c (epiphany_function_arg_advance): Take a
        function_arg_info instead of a mode, type and named flag.
        * config/fr30/fr30.c (fr30_function_arg_advance): Likewise.
        * config/frv/frv.c (frv_function_arg_advance): Likewise.
        * config/ft32/ft32.c (ft32_function_arg_advance): Likewise.
        * config/gcn/gcn.c (gcn_function_arg_advance): Likewise.
        * config/h8300/h8300.c (h8300_function_arg_advance): Likewise.
        * config/i386/i386.c (ix86_function_arg_advance): Likewise.
        (ix86_setup_incoming_varargs): Update call accordingly.
        * config/ia64/ia64.c (ia64_function_arg_advance): Take a
        function_arg_info instead of a mode, type and named flag.
        (ia64_setup_incoming_varargs): Update call accordingly.
        * config/iq2000/iq2000.c (iq2000_function_arg_advance): Take a
        function_arg_info instead of a mode, type and named flag.
        (iq2000_expand_prologue): Update call accordingly.
        * config/lm32/lm32.c (lm32_function_arg_advance): Take a
        function_arg_info instead of a mode, type and named flag.
        * config/m32c/m32c.c (m32c_function_arg_advance): Likewise.
        * config/m32r/m32r.c (m32r_function_arg_advance): Likewise.
        * config/m68k/m68k.c (m68k_function_arg_advance): Likewise.
        * config/mcore/mcore.c (mcore_function_arg_advance): Likewise.
        * config/microblaze/microblaze.c (microblaze_function_arg_advance):
        Likewise.
        (microblaze_expand_prologue): Update call accordingly.
        * config/mips/mips.c (mips_function_arg_advance): Take a
        function_arg_info instead of a mode, type and named flag.
        (mips_setup_incoming_varargs): Update call accordingly.
        (mips_output_args_xfer): Likewise.
        * config/mmix/mmix.c (mmix_function_arg_advance): Take a
        function_arg_info instead of a mode, type and named flag.
        * config/mn10300/mn10300.c (mn10300_function_arg_advance): Likewise.
        * config/moxie/moxie.c (moxie_function_arg_advance): Likewise.
        * config/msp430/msp430.c (msp430_function_arg_advance): Likewise.
        * config/nds32/nds32.c (nds32_function_arg_advance): Likewise.
        * config/nios2/nios2.c (nios2_function_arg_advance): Likewise.
        (nios2_setup_incoming_varargs): Update call accordingly.
        * config/nvptx/nvptx.c (nvptx_function_arg_advance): Take a
        function_arg_info instead of a mode, type and named flag.
        * config/or1k/or1k.c (or1k_function_arg_advance): Likewise.
        * config/pa/pa.c (pa_function_arg_advance): Likewise.
        * config/pdp11/pdp11.c (pdp11_function_arg_advance): Likewise.
        * config/pru/pru.c (pru_function_arg_advance): Likewise.
        * config/riscv/riscv.c (riscv_function_arg_advance): Likewise.
        (riscv_setup_incoming_varargs): Update call accordingly.
        * config/rl78/rl78.c (rl78_function_arg_advance): Take a
        function_arg_info instead of a mode, type and named flag.
        * config/rs6000/rs6000-internal.h (rs6000_function_arg_advance):
        Likewise.
        * config/rs6000/rs6000-call.c (rs6000_function_arg_advance): Likewise.
        (rs6000_parm_needs_stack): Update call accordingly.
        * config/rx/rx.c (rx_function_arg_advance): Take a function_arg_info
        instead of a mode, type and named flag.
        * config/s390/s390.c (s390_function_arg_advance): Likewise.
        (s390_call_saved_register_used): Update call accordingly.
        * config/sh/sh.c (sh_function_arg_advance): Take a function_arg_info
        instead of a mode, type and named flag.
        (sh_output_mi_thunk): Update call accordingly.
        * config/sparc/sparc.c (sparc_function_arg_advance): Take a
        function_arg_info instead of a mode, type and named flag.
        * config/spu/spu.c (spu_function_arg_advance): Likewise.
        (spu_setup_incoming_varargs): Update call accordingly.
        * config/stormy16/stormy16.c (xstormy16_function_arg_advance): Take a
        function_arg_info instead of a mode, type and named flag.
        * config/tilegx/tilegx.c (tilegx_function_arg_advance): Likewise.
        (tilegx_setup_incoming_varargs): Update call accordingly.
        * config/tilepro/tilepro.c (tilepro_function_arg_advance): Take a
        function_arg_info instead of a mode, type and named flag.
        (tilegx_setup_incoming_varargs): Update call accordingly.
        * config/v850/v850.c (v850_function_arg_advance): Take a
        function_arg_info instead of a mode, type and named flag.
        * config/vax/vax.c (vax_function_arg_advance): Likewise.
        * config/visium/visium.c (visium_function_arg_advance): Likewise.
        (visium_setup_incoming_varargs): Update call accordingly.
        * config/xtensa/xtensa.c (xtensa_function_arg_advance): Take a
        function_arg_info instead of a mode, type and named flag.

2019-08-20  Richard Sandiford  <richard.sandiford@arm.com>

        * target.def (function_arg, function_incoming_arg): Take a
        function_arg_info instead of a mode, tree and named flag.
        * doc/tm.texi: Regenerate.
        * targhooks.h (default_function_arg): Take a function_arg_info
        instead of a mode, tree and named flag.
        (default_function_incoming_arg): Likewise.
        * targhooks.c (default_function_arg): Likewise.
        (default_function_incoming_arg): Likewise.
        * calls.h (function_arg_info::end_marker_p): New function.
        (function_arg_info::end_marker): Likewise.
        * calls.c (prepare_call_address, initialize_argument_information)
        (expand_call, emit_library_call_value_1): Update calls to
        targetm.calls.function_arg and targetm.calls.function_incoming_arg.
        * dse.c: Include calls.h.
        (get_call_args): Update call to targetm.calls.function_arg.
        * expr.c (block_move_libcall_safe_for_call_parm): Likewise.
        * var-tracking.c (prepare_call_arguments): Likewise.
        * function.c (assign_parm_find_entry_rtl): Update call to
        targetm.calls.function_incoming_arg.
        * config/aarch64/aarch64.c (aarch64_function_arg): Take a
        function_arg_info instead of a mode, tree and named flag.
        * config/alpha/alpha.c (alpha_function_arg): Likewise.
        * config/arc/arc.c (arc_function_arg): Likewise.
        * config/arm/arm.c (arm_function_arg): Likewise.
        (cmse_func_args_or_return_in_stack): Update call accordingly.
        (arm_function_ok_for_sibcall): Likewise.
        (cmse_nonsecure_call_clear_caller_saved): Likewise.
        * config/avr/avr.c (avr_function_arg): Take a function_arg_info
        instead of a mode, tree and named flag.
        * config/bfin/bfin.c (bfin_function_arg): Likewise.
        * config/c6x/c6x.c (c6x_function_arg): Likewise.
        (c6x_call_saved_register_used): Update call accordingly.
        * config/cr16/cr16.c (cr16_function_arg): Take a function_arg_info
        instead of a mode, tree and named flag.
        * config/cris/cris.c (cris_function_arg, cris_function_incoming_arg)
        (cris_function_arg_1): Likewise.
        * config/csky/csky.c (csky_function_arg): Likewise.
        * config/epiphany/epiphany.c (epiphany_function_arg): Likewise.
        * config/fr30/fr30.c (fr30_function_arg): Likewise.
        * config/frv/frv.c (frv_function_arg, frv_function_incoming_arg)
        (frv_function_arg_1): Likewise.
        * config/ft32/ft32.c (ft32_function_arg): Likewise.
        * config/gcn/gcn.c (gcn_function_arg): Likewise.
        * config/h8300/h8300.c (h8300_function_arg): Likewise.
        * config/i386/i386.c (ix86_function_arg): Likewise.
        * config/ia64/ia64.c (ia64_function_arg, ia64_function_incoming_arg)
        (ia64_function_arg_1): Likewise.
        * config/iq2000/iq2000.c (iq2000_function_arg): Likewise.
        (iq2000_expand_prologue, iq2000_pass_by_reference): Update call
        accordingly.
        * config/lm32/lm32.c (lm32_function_arg): Take a function_arg_info
        instead of a mode, tree and named flag.
        * config/m32c/m32c.c (m32c_function_arg): Likewise.
        * config/m32r/m32r.c (m32r_function_arg): Likewise.
        * config/m68k/m68k.c (m68k_function_arg): Likewise.
        * config/mcore/mcore.c (mcore_function_arg): Likewise.
        * config/microblaze/microblaze.c (microblaze_function_arg): Likewise.
        (microblaze_expand_prologue): Update call accordingly.
        * config/mips/mips.c (mips_function_arg): Take a function_arg_info
        instead of a mode, tree and named flag.
        * config/mmix/mmix.c (mmix_function_incoming_arg, mmix_function_arg)
        (mmix_function_arg_1): Likewise.
        * config/mn10300/mn10300.c (mn10300_function_arg): Likewise.
        * config/moxie/moxie.c (moxie_function_arg): Likewise.
        * config/msp430/msp430.c (msp430_function_arg): Likewise.
        * config/nds32/nds32.c (nds32_function_arg): Likewise.
        * config/nios2/nios2.c (nios2_function_arg): Likewise.
        * config/nvptx/nvptx.c (nvptx_function_arg): Likewise.
        (nvptx_function_incoming_arg): Likewise.
        * config/or1k/or1k.c (or1k_function_arg): Likewise.
        * config/pa/pa.c (pa_function_arg): Likewise.
        * config/pdp11/pdp11.c (pdp11_function_arg): Likewise.
        * config/pru/pru.c (pru_function_arg): Likewise.
        * config/riscv/riscv.c (riscv_function_arg): Likewise.
        * config/rl78/rl78.c (rl78_function_arg): Likewise.
        * config/rs6000/rs6000-internal.h (rs6000_function_arg): Likewise.
        * config/rs6000/rs6000-call.c (rs6000_function_arg): Likewise.
        (rs6000_parm_needs_stack): Update call accordingly.
        * config/rx/rx.c (rx_function_arg): Take a function_arg_info
        instead of a mode, tree and named flag.
        * config/s390/s390.c (s390_function_arg): Likewise.
        (s390_call_saved_register_used): Update call accordingly.
        * config/sh/sh.c (sh_function_arg): Take a function_arg_info
        instead of a mode, tree and named flag.
        (sh_output_mi_thunk): Update call accordingly.
        * config/sparc/sparc.c (sparc_function_arg_1, sparc_function_arg)
        (sparc_function_incoming_arg): Take a function_arg_info instead of
        a mode, tree and named flag.
        * config/spu/spu.c (spu_function_arg): Likewise.
        * config/stormy16/stormy16.c (xstormy16_function_arg): Likewise.
        * config/tilegx/tilegx.c (tilegx_function_arg): Likewise.
        * config/tilepro/tilepro.c (tilepro_function_arg): Likewise.
        * config/v850/v850.c (v850_function_arg): Likewise.
        * config/vax/vax.c (vax_function_arg): Likewise.
        * config/visium/visium.c (visium_function_arg): Likewise.
        * config/xtensa/xtensa.c (xtensa_function_arg_1, xtensa_function_arg)
        (xtensa_function_incoming_arg): Likewise.

2019-08-20  Richard Sandiford  <richard.sandiford@arm.com>

        * target.def (setup_incoming_varargs): Take a function_arg_info
        instead of a mode and tree.
        * doc/tm.texi: Regenerate.
        * targhooks.h (default_setup_incoming_varargs): Take a
        function_arg_info instead of a mode and tree.
        * targhooks.c (default_setup_incoming_varargs): Likewise.
        * config/aarch64/aarch64.c (aarch64_setup_incoming_varargs): Likewise.
        * config/alpha/alpha.c (alpha_setup_incoming_varargs): Likewise.
        * config/arc/arc.c (arc_setup_incoming_varargs): Likewise.
        * config/arm/arm.c (arm_setup_incoming_varargs): Likewise.
        * config/bfin/bfin.c (setup_incoming_varargs): Likewise.
        * config/cris/cris.c (cris_setup_incoming_varargs): Likewise.
        * config/csky/csky.c (csky_setup_incoming_varargs): Likewise.
        * config/epiphany/epiphany.c (epiphany_setup_incoming_varargs):
        Likewise.
        * config/fr30/fr30.c (fr30_setup_incoming_varargs): Likewise.
        * config/frv/frv.c (frv_setup_incoming_varargs): Likewise.
        * config/ft32/ft32.c (ft32_setup_incoming_varargs): Likewise.
        * config/i386/i386.c (ix86_setup_incoming_varargs): Likewise.
        * config/ia64/ia64.c (ia64_setup_incoming_varargs): Likewise.
        * config/iq2000/iq2000.c (iq2000_setup_incoming_varargs): Likewise.
        * config/lm32/lm32.c (lm32_setup_incoming_varargs): Likewise.
        * config/m32r/m32r.c (m32r_setup_incoming_varargs): Likewise.
        * config/mcore/mcore.c (mcore_setup_incoming_varargs): Likewise.
        * config/mips/mips.c (mips_setup_incoming_varargs): Likewise.
        * config/mmix/mmix.c (mmix_setup_incoming_varargs): Likewise.
        * config/moxie/moxie.c (moxie_setup_incoming_varargs): Likewise.
        * config/nds32/nds32.c (nds32_setup_incoming_varargs): Likewise.
        * config/nios2/nios2.c (nios2_setup_incoming_varargs): Likewise.
        * config/riscv/riscv.c (riscv_setup_incoming_varargs): Likewise.
        * config/rs6000/rs6000-internal.h (setup_incoming_varargs): Likewise.
        * config/rs6000/rs6000-call.c (setup_incoming_varargs): Likewise.
        * config/sh/sh.c (sh_setup_incoming_varargs): Likewise.
        * config/spu/spu.c (spu_setup_incoming_varargs): Likewise.
        * config/tilegx/tilegx.c (tilegx_setup_incoming_varargs): Likewise.
        * config/tilepro/tilepro.c (tilepro_setup_incoming_varargs): Likewise.
        * config/visium/visium.c (visium_setup_incoming_varargs): Likewise.
        * function.c (assign_parms_setup_varargs): Update call to
        targetm.calls.setup_incoming_varargs.

2019-08-20  Richard Sandiford  <richard.sandiford@arm.com>

        * target.def (pass_by_reference): Take a function_arg_info instead
        of a mode, type and named flag.
        * doc/tm.texi: Regenerate.
        * targhooks.h (hook_pass_by_reference_must_pass_in_stack): Update
        accordingly.
        (hook_bool_CUMULATIVE_ARGS_arg_info_false): Declare.
        * targhooks.c (hook_pass_by_reference_must_pass_in_stack): Take a
        function_arg_info instead of a mode, type and named flag.
        (hook_bool_CUMULATIVE_ARGS_arg_info_false): New function.
        * calls.h (pass_by_reference): Take a function_arg_info instead of a
        mode, type and named flag.
        * calls.c (pass_by_reference): Likewise.
        (pass_va_arg_by_reference): Update call accordingly.
        (initialize_argument_information): Likewise.
        (emit_library_call_value_1): Likewise.
        * function.c (assign_parm_find_data_types): Likewise.
        * var-tracking.c (prepare_call_arguments): Likewise.
        * stor-layout.c: Include calls.h.
        (compute_record_mode): Update call to targetm.calls.pass_by_reference.
        * config/aarch64/aarch64.c (aarch64_pass_by_reference): Take a
        function_arg_info instead of a mode, type and named flag.
        * config/alpha/alpha.c (alpha_pass_by_reference): Likewise.
        * config/arc/arc.c (arc_pass_by_reference): Likewise.
        * config/arm/arm.c (arm_pass_by_reference): Likewise.
        * config/bfin/bfin.c (bfin_pass_by_reference): Likewise.
        * config/c6x/c6x.c (c6x_pass_by_reference): Likewise.
        (c6x_call_saved_register_used): Update call to pass_by_reference.
        * config/cris/cris.c (cris_pass_by_reference): Take a
        function_arg_info instead of a mode, type and named flag.
        * config/epiphany/epiphany.c (epiphany_pass_by_reference): Take a
        function_arg_info instead of a mode, type and named flag.
        (epiphany_arg_partial_bytes): Update call accordingly.
        * config/ft32/ft32.c (ft32_pass_by_reference): Take a
        function_arg_info instead of a mode, type and named flag.
        (ft32_arg_partial_bytes): Update call accordingly.
        * config/i386/i386.c (ix86_pass_by_reference): Take a
        function_arg_info instead of a mode, type and named flag.
        * config/iq2000/iq2000.c (iq2000_pass_by_reference): Likewise.
        * config/m32c/m32c.c (m32c_pass_by_reference): Likewise.
        * config/m32r/m32r.c (m32r_pass_by_reference): Likewise.
        (m32r_return_in_memory): Update call accordingly.
        * config/mips/mips.c (mips_pass_by_reference): Take a
        function_arg_info instead of a mode, type and named flag.
        * config/mmix/mmix.c (mmix_pass_by_reference): Likewise.
        * config/mn10300/mn10300.c (mn10300_pass_by_reference): Likewise.
        * config/moxie/moxie.c (moxie_pass_by_reference): Likewise.
        (moxie_arg_partial_bytes): Update call accordingly.
        * config/msp430/msp430.c (msp430_pass_by_reference): Take a
        function_arg_info instead of a mode, type and named flag.
        * config/nvptx/nvptx.c (nvptx_pass_by_reference): Likewise.
        * config/or1k/or1k.c (or1k_pass_by_reference): Likewise.
        * config/pa/pa.c (pa_pass_by_reference): Likewise.
        * config/riscv/riscv.c (riscv_pass_by_reference): Likewise.
        (riscv_return_in_memory): Update call accordingly.
        * config/rs6000/rs6000-internal.h (rs6000_pass_by_reference): Take a
        function_arg_info instead of a mode, type and named flag.
        * config/rs6000/rs6000-call.c (rs6000_pass_by_reference): Likewise.
        (rs6000_parm_needs_stack): Update call to pass_by_reference.
        * config/s390/s390.c (s390_pass_by_reference): Take a
        function_arg_info instead of a mode, type and named flag.
        (s390_call_saved_register_used): Update call accordingly.
        * config/sh/sh.c (sh_pass_by_reference): Take a function_arg_info
        instead of a mode, type and named flag.
        * config/sparc/sparc.c (sparc_pass_by_reference): Likewise.
        * config/spu/spu.c (spu_pass_by_reference): Likewise.
        * config/tilegx/tilegx.c (tilegx_pass_by_reference): Likewise.
        * config/tilepro/tilepro.c (tilepro_pass_by_reference): Likewise.
        * config/v850/v850.c (v850_pass_by_reference): Likewise.
        * config/visium/visium.c (visium_pass_by_reference): Likewise.

2019-08-20  Richard Sandiford  <richard.sandiford@arm.com>

        * target.def (arg_partial_bytes): Take a function_arg_info instead
        of a mode, type and named flag.
        * doc/tm.texi: Regenerate.
        * target.h (function_arg_info): Declare.
        * calls.h (function_arg_info): New class.
        * targhooks.h (hook_int_CUMULATIVE_ARGS_mode_tree_bool_0): Delete.
        (hook_int_CUMULATIVE_ARGS_arg_info_0): Declare.
        * targhooks.c (hook_int_CUMULATIVE_ARGS_mode_tree_bool_0): Delete.
        (hook_int_CUMULATIVE_ARGS_arg_info_0): New function.
        * calls.c (initialize_argument_information): Update call to
        targetm.calls.partial_bytes.
        (emit_library_call_value_1): Likewise.
        * expr.c (block_move_libcall_safe_for_call_parm): Likewise.
        * function.c (assign_parm_find_entry_rtl): Likewise.
        * config/alpha/alpha.c (alpha_arg_partial_bytes): Take a
        function_arg_info instead of a mode, type and named flag.
        * config/arc/arc.c (arc_arg_partial_bytes): Likewise.
        * config/arm/arm.c (arm_arg_partial_bytes): Likewise.
        (cmse_func_args_or_return_in_stack): Update accordingly.
        * config/bfin/bfin.c (bfin_arg_partial_bytes): Take a
        function_arg_info instead of a mode, type and named flag.
        * config/cris/cris.c (cris_arg_partial_bytes): Likewise.
        * config/csky/csky.c (csky_arg_partial_bytes): Likewise.
        * config/epiphany/epiphany.c (epiphany_arg_partial_bytes): Likewise.
        * config/fr30/fr30.c: Include calls.h.
        (fr30_arg_partial_bytes): Take a function_arg_info instead of a mode,
        type and named flag.
        * config/frv/frv.c: Include calls.h.
        (frv_arg_partial_bytes): Take a function_arg_info instead of a mode,
        type and named flag.
        * config/ft32/ft32.c (ft32_arg_partial_bytes): Likewise.
        * config/gcn/gcn.c (gcn_arg_partial_bytes): Likewise.
        * config/ia64/ia64.c (ia64_arg_partial_bytes): Likewise.
        * config/iq2000/iq2000.c (iq2000_arg_partial_bytes): Likewise.
        * config/m32r/m32r.c (m32r_arg_partial_bytes): Likewise.
        * config/mcore/mcore.c (mcore_arg_partial_bytes): Likewise.
        * config/microblaze/microblaze.c (function_arg_partial_bytes):
        Likewise.
        * config/mips/mips.c (mips_arg_partial_bytes): Likewise.
        * config/mn10300/mn10300.c (mn10300_arg_partial_bytes): Likewise.
        * config/moxie/moxie.c (moxie_arg_partial_bytes): Likewise.
        * config/msp430/msp430.c (msp430_arg_partial_bytes): Likewise.
        * config/nds32/nds32.c (nds32_arg_partial_bytes): Likewise.
        * config/nios2/nios2.c (nios2_arg_partial_bytes): Likewise.
        * config/pa/pa.c (pa_arg_partial_bytes): Likewise.
        * config/pru/pru.c (pru_arg_partial_bytes): Likewise.
        * config/riscv/riscv.c (riscv_arg_partial_bytes): Likewise.
        * config/rs6000/rs6000-internal.h (rs6000_arg_partial_bytes): Likewise.
        * config/rs6000/rs6000-call.c (rs6000_arg_partial_bytes): Likewise.
        (rs6000_parm_needs_stack): Update call accordingly.
        * config/sh/sh.c (sh_arg_partial_bytes): Take a
        function_arg_info instead of a mode, type and named flag.
        * config/sparc/sparc.c (sparc_arg_partial_bytes): Likewise.
        * config/v850/v850.c (v850_arg_partial_bytes): Likewise.

2019-08-20  Richard Sandiford  <richard.sandiford@arm.com>

        * calls.h (must_pass_va_arg_in_stack): Declare.
        * calls.c (must_pass_va_arg_in_stack): New function.
        * config/alpha/alpha.c (alpha_gimplify_va_arg_1): Use it.
        * config/sh/sh.c (sh_gimplify_va_arg_expr): Likewise.
        * config/stormy16/stormy16.c (xstormy16_gimplify_va_arg_expr):
        Likewise.
        * config/xtensa/xtensa.c (xtensa_gimplify_va_arg_expr): Likewise.

2019-08-20  Richard Sandiford  <richard.sandiford@arm.com>

        * calls.h (pass_va_arg_by_reference): Declare.
        * calls.c (pass_va_arg_by_reference): New function.
        * config/aarch64/aarch64.c (aarch64_gimplify_va_arg_expr): Use it.
        * config/alpha/alpha.c (alpha_gimplify_va_arg): Likewise.
        * config/gcn/gcn.c (gcn_gimplify_va_arg_expr): Likewise.
        * config/i386/i386.c (ix86_gimplify_va_arg): Likewise.
        * config/ia64/ia64.c (ia64_gimplify_va_arg): Likewise.
        * config/mips/mips.c (mips_std_gimplify_va_arg_expr): Likewise.
        (mips_gimplify_va_arg_expr): Likewise.
        * config/msp430/msp430.c (msp430_gimplify_va_arg_expr): Likewise.
        * config/pa/pa.c (hppa_gimplify_va_arg_expr): Likewise.
        * config/rs6000/rs6000-call.c (rs6000_gimplify_va_arg): Likewise.
        * config/s390/s390.c (s390_gimplify_va_arg): Likewise.
        * config/sparc/sparc.c (sparc_gimplify_va_arg): Likewise.
        * config/spu/spu.c (spu_gimplify_va_arg_expr): Likewise.
        * config/tilegx/tilegx.c (tilegx_gimplify_va_arg_expr): Likewise.
        * config/tilepro/tilepro.c (tilepro_gimplify_va_arg_expr): Likewise.
        * config/visium/visium.c (visium_gimplify_va_arg): Likewise.
        * config/xtensa/xtensa.c (xtensa_gimplify_va_arg_expr): Likewise.
        * targhooks.c (std_gimplify_va_arg_expr): Likewise.

2019-08-20  Richard Biener  <rguenther@suse.de>

        PR target/91498
        * config/i386/i386-features.c (general_scalar_chain::convert_op):
        Use (vec_merge (vec_duplicate..)) style vector from scalar move.
        (convert_scalars_to_vector): Add timode_p parameter and use it
        to guard TImode-only operation.
        (pass_stv::gate): Adjust so STV runs twice for TARGET_64BIT.
        (pass_stv::execute): Pass down timode_p.

2019-08-20  Lili Cui  <lili.cui@intel.com>

        * common/config/i386/i386-common.c
        (processor_names): Add tigerlake and cooperlake.
        (processor_alias_table): Add tigerlake and cooperlake.
        * config.gcc: Add -march=tigerlake and cooperlake.
        * config/i386/driver-i386.c
        (host_detect_local_cpu): Detect tigerlake and cooperlake.
        Add "has_avx" to classify processor.
        * config/i386/i386-builtins.c (processor_model) :
        Add M_INTEL_COREI7_TIGERLAKE and M_INTEL_COREI7_COOPERLAKE.
        (arch_names_table): Add tigerlake and cooperlake.
        (get_builtin_code_for_version) : Handle PROCESSOR_TIGERLAKE
        and PROCESSOR_COOPERLAKE.
        * config/i386/i386-c.c
        (ix86_target_macros_internal): Handle tigerlake and cooperlake.
        * config/i386/i386-options.c
        (m_TIGERLAKE)  : Define.
        (m_COOPERLAKE) : Ditto.
        (m_CORE_AVX512): Ditto.
        (processor_cost_table): Add cascadelake.
        (ix86_option_override_internal): Hadle PTA_MOVDIRI, PTA_MOVDIR64B.
        * config/i386/i386.h
        (ix86_size_cost) : Define TARGET_TIGERLAKE and TARGET_COOPERLAKE.
        (processor_type) : Add PROCESSOR_TIGERLAKE and PROCESSOR_COOPERLAKE.
        (PTA_MOVDIRI): Ditto.
        (PTA_MOVDIR64B): Ditto.
        (PTA_COOPERLAKE) : Ditto.
        (PTA_TIGERLAKE)  : Ditto.
        (processor_type) : Add PROCESSOR_TIGERLAKE and PROCESSOR_COOPERLAKE.
        * doc/extend.texi: Add tigerlake and cooperlake.
        * doc/invoke.texi: Add tigerlake and cooperlake.

2019-08-20  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/install.texi (Specific, alpha): Remove note to use
        binutils 2.11.2 or later.

2019-08-20  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR middle-end/89544
        * function.c (assign_parm_find_stack_rtl): Use larger alignment
        when possible.

2019-08-19  Joel Hutton  <Joel.Hutton@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_fpconst_pow2_recip): New prototype
        * config/aarch64/aarch64.c (aarch64_fpconst_pow2_recip): New function
        * config/aarch64/aarch64.md (*aarch64_<su_optab>cvtf<fcvt_target><GPF:mode>2_mult): New pattern
        (*aarch64_<su_optab>cvtf<fcvt_iesize><GPF:mode>2_mult): New pattern
        * config/aarch64/constraints.md (Dt): New constraint
        * config/aarch64/predicates.md (aarch64_fpconst_pow2_recip): New predicate

2019-08-19  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91403
        * tree-scalar-evolution.c (follow_ssa_edge_binary): Inline
        cases we can handle with tail-recursion...
        (follow_ssa_edge_expr): ... here.  Do so.

2019-08-19  Kito Cheng  <kito.cheng@sifive.com>

        PR target/91441
        * toplev.c (process_options): Check TARGET_ASAN_SHADOW_OFFSET is
        implemented for -fsanitize=kernel-address, and merge check logic
        with -fsanitize=address.

2019-08-18  Iain Sandoe  <iain@sandoe.co.uk>

        * config/rs6000/darwin.h (TARGET_OS_CPP_BUILTINS): Add asserts
        for cpu and machine.  Factor 64/32b builtins.

2019-08-18  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/install.texi (Specific, bfin): blackfin.uclinux.org is
        gone, point to sourceforge.net.

2019-08-17  Gerald Pfeifer  <gerald@pfeifer.com>
        
        * doc/ux.texi (User Experience Guidelines): Update reference.

2019-08-17  Gerald Pfeifer  <gerald@pfeifer.com>
        
        * doc/include/gpl_v3.texi (Copying): Adjust the link to "Why
        not LGPL".

2019-08-16  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-sra.c (build_reconstructed_reference): Return NULL_TREE instead
        of NULL.  Add guard for broken VIEW_CONVERT_EXPRs.

2019-08-16  Martin Sebor  <msebor@redhat.com>

        * tree.def (TYPE_SIZE): Clarify.
        * tree.h (TYPE_SIZE, TYPE_SIZE_UNIT, DECL_SIZE): Add comments.

2019-08-16  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR tree-optimization/91109
        * lra-int.h (lra_need_for_scratch_reg_p): Declare.
        * lra.c (lra): Use lra_need_for_scratch_reg_p.
        * lra-spills.c (lra_need_for_scratch_reg_p): New function.

2019-08-16  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/mmx.md (mmxdoublemode): New mode attribute.
        (mmx_uavg<mode>3): Macroize expaner from mmx_uavgv8qi3 and
        mmx_uavgv4hi3 using MMXMODE12 mode iterator.
        (uavg<mode>3_ceil): New expander.
        * config/i386/sse.md (uavg<mode>3_ceil): Use ssedoublemode
        mode iterator when creating CONST1_RTX.
        (<sse2_avx2>_uavg<mode>3<mask_name>): Ditto.
        (*<sse2_avx2>_uavg<mode>3<mask_name>): Use ssedoublemode
        mode iterator for const1_operand predicate.

2019-08-16  Richard Biener  <rguenther@suse.de>

        * tree-scalar-evolution.c (follow_ssa_edge_expr): Declare.
        (follow_ssa_edge_binary): Call follow_ssa_edge_expr instead of
        follow_ssa_edge.
        (follow_ssa_edge_in_condition_phi_branch): Likewise.
        (analyze_evolution_in_loop): Likewise.
        (follow_ssa_edge, follow_ssa_edge_in_rhs): Inline into ...
        (follow_ssa_edge_expr): ... here.  Refactor code.

2019-08-16  Richard Biener  <rguenther@suse.de>

        PR target/91469
        * config/i386/i386-features.c
        (general_scalar_chain::replace_with_subreg): Stop at memory operands.

2019-08-16  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR other/91255
        * gensupport.c (has_subst_attribute): Error out on set_attr_alternative
        only if subst_name matches curr_attr string.

2019-08-16  Richard Biener  <rguenther@suse.de>

        * tree-ssa-forwprop.c (simplify_builtin_call): Do not remove
        stmt at gsi_p, instead replace it with a NOP removed later.
        (pass_forwprop::execute): Fully propagate lattice, DCE stmts
        that became dead because of that.

2019-08-16  Aldy Hernandez  <aldyh@redhat.com>

        * gimple-ssa-evrp-analyze.c (record_ranges_from_phis): Skip PHIs
        for which we can't represent a range.
        * ipa-cp.c (ipcp_vr_lattice::set_to_bottom): Pass type to
        set_varying.
        * tree-ssa-threadedge.c (record_temporary_equivalences_from_phis):
        Set VR_UNDEFINED if type is not supported.
        * tree-ssanames.c (get_range_info): Pass type to set_varying.
        * tree-vrp.c (value_range_base::check): Assert that a varying has
        min/max set.
        (value_range_base::equal_p): Early bail for undefines.
        (value_range_base::set_varying): Accept a type.
        (value_range::set_varying): Same.
        (value_range_base::type): VARYING can have a type, while UNDEFINE
        is typeless.
        (value_range_base::dump): Print type for VARYING nodes.
        (value_range_base::set): Add type to VARYING.
        (extract_range_from_multiplicative_op): Pass type to set_varying.
        (extract_range_from_binary_expr): Same.
        (value_range_base::intersect_helper): Same.
        (value_range_base::union_helper): Same.
        (value_range_base::normalize_symbolics): Same.
        (determine_value_range_1): Same.
        * tree-vrp.h (class value_range_base): Add type to set_varying.
        Add prototype for dump(void).
        Add prototype for supports_type_p.
        (class value_range): Add type to set_varying.
        Add prototype for dump(void).
        * vr-values.c (set_value_range_to_truthvalue): Pass type to
        set_varying.
        (vr_values::get_lattice_entry): Set varying even if propagation
        finished.
        Pass type to set_varying.
        (vr_values::get_value_range): Remove vr_const_varying.
        Reallocate the lattice if needed.
        (vr_values::update_value_range): Pass type to set_varying.
        (vr_values::extract_range_for_var_from_comparison_expr): Same.
        (vr_values::extract_range_from_binary_expr): Same.
        (vr_values::extract_range_from_unary_expr): Same.
        (vr_values::extract_range_from_cond_expr): Same.
        (vr_values::check_for_binary_op_overflow): Same.
        (vr_values::extract_range_basic): Same.
        (vr_values::extract_range_from_assignment): Same.
        (vr_values::vr_values): Increase size of num_vr_values.
        (vr_values::extract_range_from_phi_node): Pass type to
        set_varying.

2019-08-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/90878
        * config/i386/i386.c (inline_memory_move_cost): Use hard_register
        for costs of hard register moves.
        (ix86_register_move_cost): Likewise.
        * config/i386/i386.h (processor_costs): Move costs of hard
        register moves to hard_register.  Add int_load, int_store,
        xmm_move, ymm_move, zmm_move, sse_to_integer, integer_to_sse,
        sse_load, sse_store, sse_unaligned_load and sse_unaligned_store
        for costs of RTL expressions.
        * config/i386/x86-tune-costs.h: Move costs of hard register
        moves to hard_register.  Duplicate int_load, int_store,
        xmm_move, ymm_move, zmm_move, sse_to_integer, integer_to_sse,
        sse_load, sse_store for costs of RTL expressions.

2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>

        * target.def (setup_incoming_vararg_bounds): Remove.
        * doc/tm.texi.in (TARGET_SETUP_INCOMING_VARARG_BOUNDS): Remove.
        * doc/tm.texi: Regenerate.
        * targhooks.c (default_setup_incoming_vararg_bounds): Delete.
        * targhooks.h (default_setup_incoming_vararg_bounds): Likewise.
        * config/i386/i386.c (ix86_setup_incoming_vararg_bounds): Likewise.
        (TARGET_SETUP_INCOMING_VARARG_BOUNDS): Likewise.

2019-08-15  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        MSP430: Fix lines over 80 characters long in
        config/msp430/*.{c,h} files

        * config/msp430/driver-msp430.c (msp430_select_cpu): Fix format
        specifier in string.
        (msp430_select_hwmult_lib): Split line more than 80 characters long.
        * config/msp430/msp430-devices.c (msp430_extract_mcu_data): Remove
        redundant old comment.
        * config/msp430/msp430-protos.h (msp430_output_aligned_decl_common):
        Split line more than 80 characters long.
        * config/msp430/msp430.c (msp430_option_override): Likewise.
        (msp430_return_in_memory): Likewise.
        (msp430_gimplify_va_arg_expr): Likewise.
        (TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P): Likewise.
        (msp430_legitimate_constant): Likewise.
        (TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS): Likewise.
        (msp430_attr): Likewise.
        (msp430_data_attr): Likewise.
        (msp430_start_function): Likewise.
        (gen_prefix): Likewise.
        (msp430_init_sections): Likewise.
        (msp430_select_section): Likewise.
        (msp430_function_section): Likewise.
        (msp430_unique_section): Likewise.
        (msp430_output_aligned_decl_common): Likewise.
        (msp430_do_not_relax_short_jumps): Likewise.
        (msp430_init_builtins): Likewise.
        (msp430_expand_delay_cycles): Likewise.
        (msp430_expand_prologue): Likewise.
        (msp430_expand_epilogue): Likewise.
        (msp430_expand_helper): Likewise.
        (msp430_split_movsi): Likewise.
        (msp430_print_operand): Likewise.
        (msp430_return_addr_rtx): Likewise.
        (msp430x_extendhisi): Likewise.
        * config/msp430/msp430.h (STARTFILE_SPEC): Likewise.
        (ASM_SPEC): Likewise.
        Remove very obvious comments.
        (LIB_SPEC): Split line more than 80 characters long.
        (EH_RETURN_HANDLER_RTX): Likewise.
        (HARD_REGNO_CALLER_SAVE_MODE): Likewise.

2019-08-15  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        MSP430: Fix whitespace errors and incorrect indentation in
        config/msp430/*.{c,h} files

        * config/msp430/driver-msp430.c (msp430_select_cpu): Fix indentation.
        (msp430_select_hwmult_lib): Likewise.
        * config/msp430/msp430-devices.c (parse_devices_csv_1): Likewise.
        (msp430_extract_mcu_data): Likewise.
        (struct t_msp430_mcu_data): Likewise.
        * config/msp430/msp430.c (struct machine_function): Remove whitespace
        before left square bracket.
        (msp430_option_override): Fix indentation.
        (msp430_hard_regno_nregs_with_padding): Likewise.
        (msp430_initial_elimination_offset): Likewise.
        (msp430_special_register_convention_p): Remove whitespace before left
        square bracket and after exclamation mark.
        (msp430_evaluate_arg): Likewise.
        (msp430_callee_copies): Fix indentation.
        (msp430_gimplify_va_arg_expr): Likewise.
        (msp430_function_arg_advance): Remove whitespace before left square
        bracket.
        (reg_ok_for_addr): Likewise.
        (msp430_preserve_reg_p): Likewise.
        (msp430_compute_frame_info): Likewise.
        (msp430_asm_output_addr_const_extra): Add space between function name
        and open parenthesis.
        (has_section_name): Fix indentation.
        (msp430_attr): Remove trailing whitespace.
        (msp430_section_attr): Likewise.
        (msp430_data_attr): Likewise.
        (struct msp430_attribute_table): Fix comment and whitespace.
        (msp430_start_function): Remove whitespace before left square bracket.
        Add space between function name and open parenthesis.
        (msp430_select_section): Remove trailing whitespace.
        (msp430_section_type_flags): Remove trailing whitespace.
        (msp430_unique_section): Remove space before closing parenthesis.
        (msp430_output_aligned_decl_common): Change 8 spaces to a tab.
        (msp430_builtins): Remove whitespace before left square bracket.
        (msp430_init_builtins): Fix indentation.
        (msp430_expand_prologue): Remove whitespace before left square bracket.
        Remove space before closing parenthesis.
        (msp430_expand_epilogue): Remove whitespace before left square bracket.
        (msp430_split_movsi): Remove space before closing parenthesis.
        (helper_function_name_mappings): Fix indentation.
        (msp430_use_f5_series_hwmult): Fix whitespace.
        (use_32bit_hwmult): Likewise.
        (msp430_no_hwmult): Likewise.
        (msp430_output_labelref): Remove whitespace before left square bracket.
        (msp430_print_operand_raw): Likewise.
        (msp430_print_operand_addr): Likewise.
        (msp430_print_operand): Add two spaces after '.' in comment.
        Fix trailing whitespace.
        (msp430x_extendhisi): Fix indentation.
        * config/msp430/msp430.h (TARGET_CPU_CPP_BUILTINS): Change 8 spaces to
        tab.
        (PC_REGNUM): Likewise.
        (STACK_POINTER_REGNUM): Likewise.
        (CC_REGNUM): Likewise.

2019-08-15  Richard Biener  <rguenther@suse.de>

        PR target/91454
        * config/i386/i386-features.c (gen_gpr_to_xmm_move_src): New
        helper.
        (general_scalar_chain::make_vector_copies): Use it.

2019-08-15  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * function.c (assign_parm_setup_reg): Handle misaligned stack arguments.

2019-08-15  Martin Liska  <mliska@suse.cz>

        * tree-ssa-dce.c (propagate_necessity): We can't reach now
        operators with no arguments.
        (eliminate_unnecessary_stmts): Likewise here.

2019-08-15  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386-features.c (general_scalar_chain::convert_insn)
        <case COMPARE>: Revert 2019-08-14 change.
        (convertible_comparison_p): Revert 2019-08-14 change.  Return false
        for (TARGET_64BIT || mode != DImode).

2019-08-15  Aldy Hernandez  <aldyh@redhat.com>

        * tree-vrp.c (value_range_base::set): Merge in code from
        value_range_base::set_and_canonicalize.
        Enforce canonicalization at set time.
        Normalize [MIN, MAX] into VARYING and ~[MIN, MAX] into UNDEFINED.
        (value_range_base::set_undefined): Inline call to set().
        (value_range_base::set_varying): Same.
        (value_range_base::singleton_p): Handle VR_ANTI_RANGEs.
        (vrp_val_max): New argument handle_pointers.
        (vrp_val_min): Same.
        (ranges_from_anti_range): Same.
        (extract_range_into_wide_ints): Use tree argument instead of sign
        and precision.
        (extract_range_from_multiplicative_op): Take in tree type instead
        of precision and sign.  Adapt function for canonicalized ranges.
        (extract_range_from_binary_expr): Pass type to
        extract_range_from_multiplicative_op.
        Adapt for canonicalized ranges.
        (extract_range_from_unary_expr): Same.
        (value_range_base::intersect_helper): Adjust for canonicalized
        ranges.
        (value_range_base::union_helper): Same.
        (value_range_base::normalize_symbolics): New.
        * tree-vrp.h (class value_range_base): Remove
        set_and_canonicalize.
        New prototype for normalize_symbolics.
        (class value_range): Remove set_and_canonicalize.
        (vrp_val_min): Adjust prototype.
        (vrp_val_max): Same.
        * vr-values.c
        (vr_values::extract_range_for_var_from_comparison_expr):  Call set
        instead of set_and_canonicalize.

2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>

        PR middle-end/91444
        * tree-vect-stmts.c (vectorizable_call): Check that the function
        is a BUILT_IN_MD function before passing it to
        targetm.vectorize.builtin_md_vectorized_function.

2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_sve_mode_p): Declare.
        * config/aarch64/aarch64.c (aarch64_sve_mode_p): New function.
        (aarch64_select_early_remat_modes): Use it.

2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.c (aarch64_simd_vector_alignment): Return
        16 for SVE predicates even if they are fixed-length.

2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-sve.md (and<PRED_ALL:mode>3): Make the
        operand order match the MOV /Z alias.

2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.c (aarch64_output_sve_cnt_immediate): Take
        the vector pattern as an aarch64_svpattern argument.  Update the
        overloaded caller accordingly.
        (aarch64_output_sve_scalar_inc_dec): Update call accordingly.
        (aarch64_output_sve_vector_inc_dec): Likewise.

2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.c (aarch64_add_offset): In the fallback
        multiplication case, try to compute VG * (lowest set bit) directly
        rather than always basing the multiplication on VG.  Use
        expand_mult for the multiplication if we can.

2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-protos.h
        (aarch64_sve_scalar_inc_dec_immediate_p): Declare.
        (aarch64_sve_inc_dec_immediate_p): Rename to...
        (aarch64_sve_vector_inc_dec_immediate_p): ...this.
        (aarch64_output_sve_addvl_addpl): Take a single rtx argument.
        (aarch64_output_sve_scalar_inc_dec): Declare.
        (aarch64_output_sve_inc_dec_immediate): Rename to...
        (aarch64_output_sve_vector_inc_dec): ...this.
        * config/aarch64/aarch64.c (aarch64_sve_scalar_inc_dec_immediate_p)
        (aarch64_output_sve_scalar_inc_dec): New functions.
        (aarch64_output_sve_addvl_addpl): Remove the base and offset
        arguments.  Only handle true ADDVL and ADDPL instructions;
        don't emit an INC or DEC.
        (aarch64_sve_inc_dec_immediate_p): Rename to...
        (aarch64_sve_vector_inc_dec_immediate_p): ...this.
        (aarch64_output_sve_inc_dec_immediate): Rename to...
        (aarch64_output_sve_vector_inc_dec): ...this.  Update call to
        aarch64_sve_vector_inc_dec_immediate_p.
        * config/aarch64/predicates.md (aarch64_sve_scalar_inc_dec_immediate)
        (aarch64_sve_plus_immediate): New predicates.
        (aarch64_pluslong_operand): Accept aarch64_sve_plus_immediate
        rather than aarch64_sve_addvl_addpl_immediate.
        (aarch64_sve_inc_dec_immediate): Rename to...
        (aarch64_sve_vector_inc_dec_immediate): ...this.  Update call to
        aarch64_sve_vector_inc_dec_immediate_p.
        (aarch64_sve_add_operand): Update accordingly.
        * config/aarch64/constraints.md (Uai): New constraint.
        (vsi): Update call to aarch64_sve_vector_inc_dec_immediate_p.
        * config/aarch64/aarch64.md (add<GPI:mode>3): Don't force the second
        operand into a register if it satisfies aarch64_sve_plus_immediate.
        (*add<GPI:mode>3_aarch64, *add<GPI:mode>3_poly_1): Add an alternative
        for Uai.  Update calls to aarch64_output_sve_addvl_addpl.
        * config/aarch64/aarch64-sve.md (add<mode>3): Call
        aarch64_output_sve_vector_inc_dec instead of
        aarch64_output_sve_inc_dec_immediate.

2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/iterators.md (UNSPEC_REVB, UNSPEC_REVH)
        (UNSPEC_REVW): New constants.
        (elem_bits): New mode attribute.
        (SVE_INT_UNARY): New int iterator.
        (optab): Handle UNSPEC_REV[BHW].
        (sve_int_op): New int attribute.
        (min_elem_bits): Handle VNx16QI and the predicate modes.
        * config/aarch64/aarch64-sve.md (*aarch64_sve_rev64<mode>)
        (*aarch64_sve_rev32<mode>, *aarch64_sve_rev16vnx16qi): Delete.
        (@aarch64_pred_<SVE_INT_UNARY:optab><SVE_I:mode>): New pattern.
        * config/aarch64/aarch64.c (aarch64_sve_data_mode): New function.
        (aarch64_sve_int_mode, aarch64_sve_rev_unspec): Likewise.
        (aarch64_split_sve_subreg_move): Use UNSPEC_REV[BHW] instead of
        unspecs based on the total width of the reversed data.
        (aarch64_evpc_rev_local): Likewise (for SVE only).  Use a
        reinterpret followed by a subreg on big-endian targets.

2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>
            Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

        * config/aarch64/aarch64-sve.md
        (*cond_<SVE_COND_FP_TERNARY:optab><SVE_F:mode>_any): Add /z
        alternatives in which one of the inputs is in the same register
        as the output.

2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-sve.md (*vec_extract<mode><Vel>_ext)
        (*aarch64_sve_ext<mode>): Add MOVPRFX alternatives.

2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-sve.md (*sub<SVE_F:mode>3): Remove immediate
        FADD and FSUB alternatives.  Add a MOVPRFX alternative for FSUBR.

2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>
            Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

        * config/aarch64/aarch64-sve.md (add<SVE_I:mode>3, sub<SVE_I:mode>3)
        (<LOGICAL:optab><SVE_I:mode>3, *add<SVE_F:mode>3, *mul<SVE_F:mode>3)
        (*fabd<SVE_F:mode>3): Add more MOVPRFX alternatives.

2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>
            Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * config/aarch64/aarch64-sve.md (*v<ASHIFT:optab><SVE_I:mode>3):
        Add an alternative that uses reversed shifts.

2019-08-15  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64-cores.def (cortex-a76): Use neoversen1 tuning
        struct.

2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-sve.md (aarch64_<su>abd<mode>_3): Add
        a commutativity marker.

2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>
            Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

        * config/aarch64/aarch64-protos.h (aarch64_prepare_sve_int_fma)
        (aarch64_prepare_sve_cond_int_fma): Declare.
        * config/aarch64/aarch64.c (aarch64_convert_mult_to_shift)
        (aarch64_prepare_sve_int_fma): New functions.
        (aarch64_prepare_sve_cond_int_fma): Likewise.
        * config/aarch64/aarch64-sve.md
        (cond_<SVE_INT_BINARY:optab><SVE_I:mode>): Add a "@" marker.
        (fma<SVE_I:mode>4, cond_fma<SVE_I:mode>, *cond_fma<SVE_I:mode>_2)
        (*cond_fma<SVE_I:mode>_4, *cond_fma<SVE_I:mode>_any, fnma<SVE_I:mode>4)
        (cond_fnma<SVE_I:mode>, *cond_fnma<SVE_I:mode>_2)
        (*cond_fnma<SVE_I:mode>_4, *cond_fnma<SVE_I:mode>_any): New patterns.
        (*madd<mode>): Rename to...
        (*fma<mode>4): ...this.
        (*msub<mode>): Rename to...
        (*fnma<mode>4): ...this.

2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>
            Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

        * config/aarch64/aarch64.c (aarch64_print_vector_float_operand):
        Print 2.0 naturally.
        (aarch64_sve_float_mul_immediate_p): Return true for 2.0.
        * config/aarch64/predicates.md
        (aarch64_sve_float_negated_arith_immediate): New predicate,
        renamed from aarch64_sve_float_arith_with_sub_immediate.
        (aarch64_sve_float_arith_with_sub_immediate): Test for both
        positive and negative constants.
        (aarch64_sve_float_arith_with_sub_operand): Redefine as a register
        or an aarch64_sve_float_arith_with_sub_immediate.
        * config/aarch64/constraints.md (vsN): Use
        aarch64_sve_float_negated_arith_immediate.
        * config/aarch64/iterators.md (SVE_COND_FP_BINARY_I1): New int
        iterator.
        (sve_pred_fp_rhs2_immediate): New int attribute.
        * config/aarch64/aarch64-sve.md
        (cond_<SVE_COND_FP_BINARY:optab><SVE_F:mode>): Use
        sve_pred_fp_rhs1_operand and sve_pred_fp_rhs2_operand.
        (*cond_<SVE_COND_FP_BINARY_I1:optab><SVE_F:mode>_2_const)
        (*cond_<SVE_COND_FP_BINARY_I1:optab><SVE_F:mode>_any_const)
        (*cond_add<SVE_F:mode>_2_const, *cond_add<SVE_F:mode>_any_const)
        (*cond_sub<mode>_3_const, *cond_sub<mode>_any_const): New patterns.

2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>
            Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

        * config/aarch64/aarch64-sve.md (*aarch64_cond_abd<SVE_F:mode>_2)
        (*aarch64_cond_abd<SVE_F:mode>_3)
        (*aarch64_cond_abd<SVE_F:mode>_any): New patterns.

2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>
            Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

        * config/aarch64/aarch64-sve.md (*aarch64_cond_<su>abd<mode>_2)
        (*aarch64_cond_<su>abd<mode>_any): New patterns.

2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>
            Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * internal-fn.def (IFN_COND_SHL, IFN_COND_SHR): New internal functions.
        * internal-fn.c (FOR_EACH_CODE_MAPPING): Handle shifts.
        * match.pd (UNCOND_BINARY, COND_BINARY): Likewise.
        * optabs.def (cond_ashl_optab, cond_ashr_optab, cond_lshr_optab): New
        optabs.
        * optabs.h (create_convert_operand_from): Expand comment.
        * optabs.c (maybe_legitimize_operand): Allow implicit broadcasts
        when mapping scalar rtxes to vector operands.
        * config/aarch64/iterators.md (SVE_INT_BINARY): Add ashift,
        ashiftrt and lshiftrt.
        (sve_int_op, sve_int_op_rev, sve_pred_int_rhs2_operand): Handle them.
        * config/aarch64/aarch64-sve.md (*cond_<optab><mode>_2_const)
        (*cond_<optab><mode>_any_const): New patterns.

2019-08-15  Martin Liska  <mliska@suse.cz>

        PR ipa/91438
        * cgraph.c (cgraph_node::remove): When setting
        n->origin = NULL for all nested functions, reset
        also next_nested.

2019-08-15  Martin Liska  <mliska@suse.cz>

        * cgraph.c (cgraph_node::verify_node): Verify origin, nested
        and next_nested.

2019-08-15  Martin Liska  <mliska@suse.cz>

        PR ipa/91404
        * passes.c (order): Remove.
        (uid_hash_t): Likewise).
        (remove_cgraph_node_from_order): Remove from set
        of pointers (cgraph_node *).
        (insert_cgraph_node_to_order): New.
        (duplicate_cgraph_node_to_order): New.
        (do_per_function_toporder): Register all 3 cgraph hooks.
        Skip removed_nodes now as we know about all of them.

2019-08-14  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386-expand.c (ix86_expand_vector_init_one_nonzero)
        <case E_V8QImode>: Use vector_set path for
        TARGET_MMX_WITH_SSE && TARGET_SSE4_1.
        (ix86_expand_vector_init_one_var) <case E_V8QImode>:
        Do not widen for TARGET_MMX_WITH_SSE && TARGET_SSE4_1.

2019-08-14  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * builtins.c (expand_builtin_init_descriptor): Set memory alignment.

2019-08-14  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/91294
        * tree-ssa-strlen.c (handle_store): Avoid treating lower bound of
        source length as exact.

2019-08-14  Christophe Lyon  <christophe.lyon@linaro.org>

        * doc/extend.texi: Add "noinit" attribute documentation.
        * doc/sourcebuild.texi: Add noinit effective target documentation.
        * varasm.c (default_section_type_flags): Add support for "noinit"
        section.
        (default_elf_select_section): Add support for "noinit" attribute.
        * config/msp430/msp430.c (msp430_attribute_table): Remove
        "noinit" entry.

2019-08-14  Richard Biener  <rguenther@suse.de>
            Uroš Bizjak  <ubizjak@gmail.com>

        PR target/91154
        * config/i386/i386-features.h (scalar_chain::scalar_chain): Add
        mode arguments.
        (scalar_chain::smode): New member.
        (scalar_chain::vmode): Likewise.
        (dimode_scalar_chain): Rename to...
        (general_scalar_chain): ... this.
        (general_scalar_chain::general_scalar_chain): Take mode arguments.
        (timode_scalar_chain::timode_scalar_chain): Initialize scalar_chain
        base with TImode and V1TImode.
        * config/i386/i386-features.c (scalar_chain::scalar_chain): Adjust.
        (general_scalar_chain::vector_const_cost): Adjust for SImode
        chains.
        (general_scalar_chain::compute_convert_gain): Likewise.  Add
        {S,U}{MIN,MAX} support.
        (general_scalar_chain::replace_with_subreg): Use vmode/smode.
        (general_scalar_chain::make_vector_copies): Likewise.  Handle
        non-DImode chains appropriately.
        (general_scalar_chain::convert_reg): Likewise.
        (general_scalar_chain::convert_op): Likewise.
        (general_scalar_chain::convert_insn): Likewise.  Add
        fatal_insn_not_found if the result is not recognized.
        (convertible_comparison_p): Pass in the scalar mode and use that.
        (general_scalar_to_vector_candidate_p): Likewise.  Rename from
        dimode_scalar_to_vector_candidate_p.  Add {S,U}{MIN,MAX} support.
        (scalar_to_vector_candidate_p): Remove by inlining into single
        caller.
        (general_remove_non_convertible_regs): Rename from
        dimode_remove_non_convertible_regs.
        (remove_non_convertible_regs): Remove by inlining into single caller.
        (convert_scalars_to_vector): Handle SImode and DImode chains
        in addition to TImode chains.
        * config/i386/i386.md (<maxmin><MAXMIN_IMODE>3): New expander.
        (*<maxmin><MAXMIN_IMODE>3_1): New insn-and-split.
        (*<maxmin>di3_doubleword): Likewise.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>
            Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

        * config/aarch64/aarch64-sve.md (*cond_bic<mode>_2)
        (*cond_bic<mode>_any): New patterns.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.c (aarch64_print_operand): Allow %e to
        take the equivalent mask, as well as a bit count.
        * config/aarch64/predicates.md (aarch64_sve_uxtb_immediate)
        (aarch64_sve_uxth_immediate, aarch64_sve_uxt_immediate)
        (aarch64_sve_pred_and_operand): New predicates.
        * config/aarch64/iterators.md (sve_pred_int_rhs2_operand): New
        code attribute.
        * config/aarch64/aarch64-sve.md
        (cond_<SVE_INT_BINARY:optab><SVE_I:mode>): Use it.
        (*cond_uxt<mode>_2, *cond_uxt<mode>_any): New patterns.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-sve.md
        (*cond_<SVE_COND_FCVTI:optab>_nontrunc<SVE_F:mode><SVE_HSDI:mode>)
        (*cond_<SVE_COND_ICVTF:optab>_nonextend<SVE_HSDI:mode><SVE_F:mode>):
        New patterns.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>
            Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

        * config/aarch64/aarch64-sve.md
        (*cond_<SVE_COND_FP_UNARY:optab><SVE_F:mode>_2): New pattern.
        (*cond_<SVE_COND_FP_UNARY:optab><SVE_F:mode>_any): Likewise.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>
            Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

        * config/aarch64/aarch64-sve.md
        (*cond_<SVE_INT_UNARY:optab><SVE_I:mode>_2): New pattern.
        (*cond_<SVE_INT_UNARY:optab><SVE_I:mode>_any): Likewise.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/iterators.md (SVE_COND_FP_ABS_CMP): New iterator.
        * config/aarch64/aarch64-sve.md (*aarch64_pred_fac<cmp_op><mode>):
        New pattern.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>
            Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

        * config/aarch64/aarch64-sve.md (*aarch64_sel_dup<mode>): New pattern.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>
            Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

        * config/aarch64/aarch64.c (aarch64_bit_representation): New function.
        (aarch64_print_vector_float_operand): Also handle 8-bit floats.
        (aarch64_print_operand): Add support for %I.
        (aarch64_sve_dup_immediate_p): Handle scalars as well as vectors.
        Bitcast floating-point constants to the corresponding integer constant.
        (aarch64_float_const_representable_p): Handle vectors as well
        as scalars.
        (aarch64_expand_sve_vcond): Make sure that the operands are valid
        for the new vcond_mask_<mode><vpred> expander.
        * config/aarch64/predicates.md (aarch64_sve_dup_immediate): Also
        test aarch64_float_const_representable_p.
        (aarch64_sve_reg_or_dup_imm): New predicate.
        * config/aarch64/aarch64-sve.md (vec_extract<vpred><Vel>): Use
        gen_vcond_mask_<mode><vpred> instead of
        gen_aarch64_sve_dup<mode>_const.
        (vcond_mask_<mode><vpred>): Turn into a define_expand that
        accepts aarch64_sve_reg_or_dup_imm and aarch64_simd_reg_or_zero
        for operands 1 and 2 respectively.  Force operand 2 into a
        register if operand 1 is a register.  Fold old define_insn...
        (aarch64_sve_dup<mode>_const): ...and this define_insn...
        (*vcond_mask_<mode><vpred>): ...into this new pattern.  Handle
        floating-point constants that can be moved as integers.  Add
        alternatives for MOV /M and FMOV /M.
        (vcond<mode><v_int_equiv>, vcondu<mode><v_int_equiv>)
        (vcond<mode><v_fp_equiv>): Accept nonmemory_operand for operands
        1 and 2 respectively.
        * config/aarch64/constraints.md (Ufc): Handle vectors as well
        as scalars.
        (vss): New constraint.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/predicates.md (aarch64_sve_float_maxmin_immediate)
        (aarch64_sve_float_maxmin_operand): New predicates.
        * config/aarch64/constraints.md (vsB): New constraint.
        (vsM): Fix typo.
        * config/aarch64/iterators.md (sve_pred_fp_rhs2_operand): Use
        aarch64_sve_float_maxmin_operand for UNSPEC_COND_FMAXNM and
        UNSPEC_COND_FMINNM.
        * config/aarch64/aarch64-sve.md (<maxmin_uns><SVE_F:mode>3):
        Use aarch64_sve_float_maxmin_operand for operand 2.
        (*<SVE_COND_FP_MAXMIN_PUBLIC:optab><SVE_F:mode>3): Likewise.
        Add alternatives for the constant forms.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/constraints.md (vsb): New constraint.
        (vsm): Generalize description.
        * config/aarch64/iterators.md (SVE_INT_BINARY_IMM): New code
        iterator.
        (sve_imm_con): Handle smax, smin, umax and umin.
        (sve_imm_prefix): New code attribute.
        * config/aarch64/predicates.md (aarch64_sve_vsb_immediate)
        (aarch64_sve_vsb_operand): New predicates.
        (aarch64_sve_mul_immediate): Rename to...
        (aarch64_sve_vsm_immediate): ...this.
        (aarch64_sve_mul_operand): Rename to...
        (aarch64_sve_vsm_operand): ...this.
        * config/aarch64/aarch64-sve.md (mul<mode>3): Generalize to...
        (<SVE_INT_BINARY_IMM:optab><SVE_I:mode>3): ...this.
        (*mul<mode>3, *post_ra_mul<mode>3): Generalize to...
        (*<SVE_INT_BINARY_IMM:optab><SVE_I:mode>3)
        (*post_ra_<SVE_INT_BINARY_IMM:optab><SVE_I:mode>3): ...these and
        add movprfx support for the immediate alternatives.
        (<su><maxmin><mode>3, *<su><maxmin><mode>3): Delete in favor
        of the above.
        (*<SVE_INT_BINARY_SD:optab><SVE_SDI:mode>3): Fix incorrect predicate
        for operand 3.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/predicates.md (aarch64_simd_imm_one): New predicate.
        * config/aarch64/aarch64-sve.md (*cnot<mode>): New pattern.
        (*cond_cnot<mode>_2, *cond_cnot<mode>_any): Likewise.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/iterators.md (SVE_INT_UNARY): Add clrsb and clz.
        (optab, sve_int_op): Handle them.
        * config/aarch64/aarch64-sve.md: Expand comment.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/predicates.md (const_1_to_3_operand): New predicate.
        * config/aarch64/aarch64-sve.md (*aarch64_adr_uxtw)
        (*aarch64_adr<mode>_shift, *aarch64_adr_shift_uxtw): New patterns.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.c (aarch64_expand_sve_const_pred_eor)
        (aarch64_expand_sve_const_pred_trn): New functions.
        (aarch64_expand_sve_const_pred_1): Add a recurse_p parameter and
        use the above functions when the parameter is true.
        (aarch64_expand_sve_const_pred): Update call accordingly.
        * config/aarch64/aarch64-sve.md (*aarch64_sve_<perm_insn><mode>):
        Rename to...
        (@aarch64_sve_<perm_insn><mode>): ...this.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_sve_same_pred_for_ptest_p):
        Declare.
        * config/aarch64/aarch64.c (aarch64_sve_same_pred_for_ptest_p)
        (aarch64_sve_emit_int_cmp): New functions.
        (aarch64_convert_sve_data_to_pred): Use aarch64_sve_emit_int_cmp.
        (aarch64_sve_cmp_operand_p, aarch64_emit_sve_ptrue_op_cc): Delete.
        (aarch64_expand_sve_vec_cmp_int): Use aarch64_sve_emit_int_cmp.
        * config/aarch64/aarch64.md (UNSPEC_MERGE_PTRUE): Delete.
        (UNSPEC_PRED_Z): New unspec.
        (set_clobber_cc_nzc): Delete.
        * config/aarch64/aarch64-sve.md: Add a block comment about
        UNSPEC_PRED_Z.
        (*cmp<SVE_INT_CMP:cmp_op><mode>): Rename to...
        (@aarch64_pred_cmp<SVE_INT_CMP:cmp_op><mode>): ...this, replacing
        the old pattern with that name.  Use UNSPEC_PRED_Z instead of
        UNSPEC_MERGE_PTRUE.
        (*cmp<SVE_INT_CMP:cmp_op><mode>_cc): Use UNSPEC_PRED_Z instead of
        UNSPEC_MERGE_PTRUE.  Use aarch64_sve_same_pred_for_ptest_p to
        check for compatible predicates.
        (*cmp<cmp_op><SVE_INT_CMP:mode>_ptest): Likewise.
        (*cmp<cmp_op><mode>_and): Match a known-ptrue UNSPEC_PRED_Z instead
        of UNSPEC_MERGE_PTRUE.  Split into the new form of predicated
        comparisons above.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.md (UNSPEC_PRED_X): New unspec.
        * config/aarch64/aarch64-sve.md: Add a section describing it.
        (@aarch64_pred_mov<mode>, @aarch64_pred_mov<mode>)
        (<SVE_INT_UNARY:optab><mode>2, *<SVE_INT_UNARY:optab><mode>2)
        (aarch64_<su>abd<mode>_3, mul<SVE_I:mode>3, *mul<SVE_I:mode>3)
        (<su>mul<mode>3_highpart, *<su>mul<mode>3_highpart)
        (<SVE_INT_BINARY:optab><mode>3, *<SVE_INT_BINARY:optab><mode>3)
        (*bic<mode>3, v<ASHIFT:optab><mode>3, *v<ASHIFT:optab><mode>3)
        (<su><maxmin><mode>3, *<su><maxmin><mode>3, *madd<SVE_I:mode>)
        (*msub<SVE_I:mode>3, *aarch64_sve_rev64<mode>)
        (*aarch64_sve_rev32<mode>, *aarch64_sve_rev16vnx16qi): Use
        UNSPEC_PRED_X instead of UNSPEC_MERGE_PTRUE.
        * config/aarch64/aarch64-sve2.md (<u>avg<mode>3_floor)
        (<u>avg<mode>3_ceil, *<sur>h<addsub><mode>): Likewise.
        * config/aarch64/aarch64.c (aarch64_split_sve_subreg_move)
        (aarch64_evpc_rev_local): Update accordingly.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/iterators.md (VNx4SI_ONLY, VNx2DF_ONLY): New mode
        iterators.
        (SVE_BHSI, SVE_SDI): Tweak comment.
        (SVE_HSDI): Likewise.  Fix definition.
        (SVE_SDF): New mode iterator.
        (elem_bits): New mode attribute.
        (SVE_COND_FCVT): New int iterator.
        * config/aarch64/aarch64-sve.md
        (*<SVE_COND_ICVTF:optab>v16hsf<SVE_HSDI:mode>2)
        (*<SVE_COND_ICVTF:optab>vnx4sf<SVE_SDI:mode>2)
        (*<SVE_COND_ICVTF:optab>vnx2df<SVE_SDI:mode>2): Merge into...
        (*aarch64_sve_<SVE_COND_ICVTF:optab>_nontrunc<SVE_F:mode><SVE_HSDI:mode>)
        (*aarch64_sve_<SVE_COND_ICVTF:optab>_trunc<VNx2DF_ONLY:mode><VNx4SI_ONLY:mode>):
        ...these new patterns.
        (*<SVE_COND_FCVTI:optab><SVE_HSDI:mode>vnx8hf2)
        (*<SVE_COND_FCVTI:optab><SVE_SDI:mode>vnx4sf2)
        (aarch64_sve_<SVE_COND_FCVTI:optab><SVE_SDI:mode>vnx2df2):
        Merge into...
        (*aarch64_sve_<SVE_COND_FCVTI:optab>_nonextend<SVE_HSDI:mode><SVE_F:mode>)
        (aarch64_sve_<SVE_COND_FCVTI:optab>_extend<VNx4SI_ONLY:mode><VNx2DF_ONLY:mode>):
        ...these new patterns.
        (vec_unpack<su_optab>_float_<perm_hilo>_vnx4si): Update accordingly.
        (*trunc<Vwide><SVE_SDF:mode>2): Replace with...
        (*aarch64_sve_<SVE_COND_FCVT:optab>_trunc<SVE_SDF:mode><SVE_HSF:mode>):
        ...this new pattern.
        (aarch64_sve_extend<SVE_HSDF:mode><Vwide>2): Replace with...
        (aarch64_sve_<SVE_COND_FCVT:optab>_nontrunc<SVE_HSF:mode><SVE_SDF:mode>):
        ...this new pattern.
        (vec_unpacks_<perm_hilo>_<mode>): Update accordingly.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.md (UNSPEC_FLOAT_CONVERT): Delete.
        * config/aarch64/iterators.md (UNSPEC_COND_FCVT, UNSPEC_COND_FCVTZS)
        (UNSPEC_COND_FCVTZU, UNSPEC_COND_SCVTF, UNSPEC_COND_UCVTF): New
        unspecs.
        (optab, su): Handle them.
        (SVE_COND_FCVTI, SVE_COND_ICVTF): New int iterators.
        * config/aarch64/aarch64-sve.md
        (<fix_trunc_optab><SVE_F:mode><v_int_equiv>2): Replace with...
        (<SVE_COND_FCVTI:optab><SVE_F:mode><v_int_equiv>2): ...this.
        (*<fix_trunc_optab>v16hsf<:SVE_HSDImode>2): Replace with...
        (*<SVE_COND_FCVTI:optab>v16hsf<SVE_F:mode>2): ...this.
        (*<fix_trunc_optab>vnx4sf<SVE_SDI:mode>2): Replace with...
        (*<SVE_COND_FCVTI:optab>vnx4sf<SVE_SDI:mode>2): ...this.
        (*<fix_trunc_optab>vnx2df<SVE_SDI:mode>2): Replace with...
        (*<SVE_COND_FCVTI:optab>vnx2df<SVE_SDI:mode>2): ...this.
        (vec_pack_<su>fix_trunc_vnx2df): Use SVE_COND_FCVTI instead of
        FIXUORS.
        (<FLOATUORS:optab><v_int_equiv><SVE_F:mode>2): Replace with...
        (<SVE_COND_ICVTF:optab><v_int_equiv><SVE_F:mode>2): ...this.
        (*<FLOATUORS:optab><SVE_HSDI:mode>vnx8hf2): Replace with...
        (*<SVE_COND_ICVTF:optab><SVE_HSDI:mode>vnx8hf2): ...this.
        (*<FLOATUORS:optab><SVE_SDI:mode>vnx4sf2): Replace with...
        (*<SVE_COND_ICVTF:optab><SVE_SDI:mode>vnx4sf2): ...this.
        (aarch64_sve_<FLOATUORS:optab><SVE_SDI:mode>vnx2df2): Replace with...
        (aarch64_sve_<SVE_COND_ICVTF:optab><SVE_SDI:mode>vnx2df2): ...this.
        (vec_unpack<su_optab>_float_<perm_hilo>_vnx4si): Pass a GP strictness
        operand to aarch64_sve_<SVE_COND_ICVTF:optab><SVE_SDI:mode>vnx2df2.
        (vec_pack_trunc_<SVE_HSF:Vwide>, *trunc<Vwide><SVE_HSF:mode>2)
        (aarch64_sve_extend<mode><Vwide>2): Use UNSPEC_COND_FCVT instead
        of UNSPEC_FLOAT_CONVERT.
        (vec_unpacks_<perm_hilo>_<mode>): Pass a GP strictness operand to
        aarch64_sve_extend<mode><Vwide>2.

2019-08-14  Richard Biener  <rguenther@suse.de>

        PR target/91154
        * config/i386/i386-features.c
        (dimode_scalar_chain::compute_convert_gain): Compute and dump
        individual instruction gain.  Fix reg-reg copy GRP cost.  Use
        ix86_cost->sse_op for vector instruction costs.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/iterators.md (UNSPEC_COND_FCMUO): New unspec.
        (cmp_op): Handle it.
        (SVE_COND_FP_CMP): Rename to...
        (SVE_COND_FP_CMP_I0): ...this.
        (SVE_FP_CMP): Remove.
        * config/aarch64/aarch64-sve.md
        (*fcm<SVE_FP_CMP:cmp_op><SVE_F:mode>): Replace with...
        (*fcm<SVE_COND_FP_CMP_I0:cmp_op><SVE_F:mode>): ...this new pattern,
        using unspecs to represent the comparison.
        (*fcmuo<SVE_F:mode>): Use UNSPEC_COND_FCMUO.
        (*fcm<cmp_op><mode>_and_combine, *fcmuo<mode>_and_combine): Update
        accordingly.
        * config/aarch64/aarch64.c (aarch64_emit_sve_ptrue_op): Delete.
        (aarch64_unspec_cond_code): Move after integer code.  Handle
        UNORDERED.
        (aarch64_emit_sve_predicated_cond): Replace with...
        (aarch64_emit_sve_fp_cond): ...this new function.
        (aarch64_emit_sve_or_conds): Replace with...
        (aarch64_emit_sve_or_fp_conds): ...this new function.
        (aarch64_emit_sve_inverted_cond): Replace with...
        (aarch64_emit_sve_invert_fp_cond): ...this new function.
        (aarch64_expand_sve_vec_cmp_float): Update accordingly.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/iterators.md (SVE_HSD): New mode iterator.
        (V_FP_EQUIV, v_fp_equiv): Handle VNx8HI and VNx8HF.
        * config/aarch64/aarch64-sve.md (vcond<mode><v_fp_equiv>): Use
        SVE_HSD instead of SVE_SD.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>
            Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

        * config/aarch64/iterators.md (SVE_COND_FP_BINARY_REG): New int
        iterator.
        (sve_pred_fp_rhs1_operand, sve_pred_fp_rhs1_operand): New int
        attributes.
        * config/aarch64/aarch64-sve.md (add<SVE_F:mode>3, sub<SVE_F:mode>3)
        (mul<SVE_F:mode>3, div<SVE_F:mode>3)
        (<SVE_COND_FP_MAXMIN_PUBLIC:optab><SVE_F:mode>3): Merge into...
        (<SVE_COND_FP_BINARY:optab><SVE_F:mode>3): ...this new expander.
        (*div<SVE_F:mode>3): Generalize to...
        (*<SVE_COND_FP_BINARY:optab><SVE_F:mode>3): ...this.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>
            Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

        * config/aarch64/aarch64.md (SVE_RELAXED_GP, SVE_STRICT_GP): New
        constants.
        * config/aarch64/predicates.md (aarch64_sve_gp_strictness): New
        predicate.
        * config/aarch64/aarch64-protos.h (aarch64_sve_pred_dominates_p):
        Declare.
        * config/aarch64/aarch64.c (aarch64_sve_pred_dominates_p): New
        function.
        * config/aarch64/aarch64-sve.md: Add a block comment about the
        handling of predicated FP operations.
        (<SVE_COND_FP_UNARY:optab><SVE_F:mode>2, add<SVE_F:mode>3)
        (sub<SVE_F:mode>3, mul<SVE_F:mode>3, div<SVE_F:mode>3)
        (<SVE_COND_FP_MAXMIN_PUBLIC:optab><SVE_F:mode>3)
        (<SVE_COND_FP_MAXMIN_PUBLIC:maxmin_uns><SVE_F:mode>3)
        (<SVE_COND_FP_TERNARY:optab><SVE_F:mode>4): Add an SVE_RELAXED_GP
        operand.
        (cond_<SVE_COND_FP_BINARY:optab><SVE_F:mode>)
        (cond_<SVE_COND_FP_TERNARY:optab><SVE_F:mode>): Add an SVE_STRICT_GP
        operand.
        (*<SVE_COND_FP_UNARY:optab><SVE_F:mode>2)
        (*cond_<SVE_COND_FP_BINARY:optab><SVE_F:mode>_2)
        (*cond_<SVE_COND_FP_BINARY:optab><SVE_F:mode>_3)
        (*cond_<SVE_COND_FP_BINARY:optab><SVE_F:mode>_any)
        (*fabd<SVE_F:mode>3, *div<SVE_F:mode>3)
        (*<SVE_COND_FP_MAXMIN_PUBLIC:optab><SVE_F:mode>3)
        (*<SVE_COND_FP_TERNARY:optab><SVE_F:mode>4)
        (*cond_<SVE_COND_FP_TERNARY:optab><SVE_F:mode>_2)
        (*cond_<SVE_COND_FP_TERNARY:optab><SVE_F:mode>_4)
        (*cond_<SVE_COND_FP_TERNARY:optab><SVE_F:mode>_any): Match the
        strictness operands.  Use aarch64_sve_pred_dominates_p to check
        whether the predicate on the conditional operation is suitable
        for merging.  Split patterns into the canonical equal-predicate form.
        (*add<SVE_F:mode>3, *sub<SVE_F:mode>3, *mul<SVE_F:mode>3): Likewise.
        Restrict the unpredicated alternatives to SVE_RELAXED_GP.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>
            Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

        * config/aarch64/aarch64-sve.md (add<mode>3, *add<mode>3)
        (sub<mode>3, *sub<mode>3, *fabd<mode>3, mul<mode>3, *mul<mode>3)
        (div<mode>3, *div<mode>3): Use SVE_COND_FP_* unspecs instead of
        rtx codes.
        (cond_<optab><mode>, *cond_<optab><mode>_2, *cond_<optab><mode>_3)
        (*cond_<optab><mode>_any): Add the predicate to the SVE_COND_FP_*
        unspecs.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>
            Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

        * config/aarch64/aarch64-sve.md (bic<mode>3): Rename to...
        (*bic<SVE_I:mode>3): ...this.  Match the form that an SVE inverse
        actually has, rather than relying on REG_EQUAL notes.
        Make the insn operand order match the SVE operand order.
        (*<nlogical><PRED_ALL:mode>3): Make the insn operand order match
        the SVE operand order.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.c (aarch64_target_reg): New function.
        (aarch64_emit_set_immediate): Likewise.
        (aarch64_ptrue_reg): Build a VNx16BI constant and then bitcast it.
        (aarch64_pfalse_reg): Likewise.
        (aarch64_convert_sve_data_to_pred): New function.
        (aarch64_sve_move_pred_via_while): Take an optional target register
        and the required register mode.
        (aarch64_expand_sve_const_pred_1): New function.
        (aarch64_expand_sve_const_pred): Likewise.
        (aarch64_expand_mov_immediate): Build an all-true predicate
        if the significant bits of the immediate are all true.  Use
        aarch64_expand_sve_const_pred for all compile-time predicate constants.
        (aarch64_mov_operand_p): Force predicate constants to be VNx16BI
        before register allocation.
        * config/aarch64/aarch64-sve.md (*vec_duplicate<mode>_reg): Use
        a VNx16BI PTRUE when splitting the memory alternative.
        (vec_duplicate<mode>): Update accordingly.
        (*pred_cmp<cmp_op><mode>): Rename to...
        (@aarch64_pred_cmp<cmp_op><mode>): ...this.

2019-08-14  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_ptrue_all): Declare.
        * config/aarch64/aarch64.c (aarch64_ptrue_all): New function.
        * config/aarch64/aarch64.md (UNSPEC_PTEST_PTRUE): Delete.
        (UNSPEC_PTEST): New unspec.
        (SVE_MAYBE_NOT_PTRUE, SVE_KNOWN_PTRUE): New constants.
        * config/aarch64/iterators.md (data_bytes): New mode attribute.
        * config/aarch64/predicates.md (aarch64_sve_ptrue_flag): New predicate.
        * config/aarch64/aarch64-sve.md: Add a new section describing the
        handling of UNSPEC_PTEST.
        (pred_<LOGICAL:optab><PRED_ALL:mode>3): Rename to...
        (@aarch64_pred_<LOGICAL:optab><PRED_ALL:mode>_z): ...this.
        (ptest_ptrue<mode>): Replace with...
        (aarch64_ptest<mode>): ...this new pattern.
        (cbranch<mode>4): Update after above changes.
        (*<LOGICAL:optab><PRED_ALL:mode>3_cc): Use UNSPEC_PTEST instead of
        UNSPEC_PTEST_PTRUE.
        (*cmp<SVE_INT_CMP:cmp_op><SVE_I:mode>_cc): Likewise.
        (*cmp<SVE_INT_CMP:cmp_op><SVE_I:mode>_ptest): Likewise.
        (*while_ult<GPI:mode><PRED_ALL:mode>_cc): Likewise.

2019-08-14  Xiong Hu Luo  <luoxhu@linux.ibm.com>

        PR lto/91287
        * builtins.c (builtin_with_linkage_p): New function.
        * builtins.h (builtin_with_linkage_p): New function.
        * symtab.c (write_symbol): Remove redundant assert.
        * lto-streamer-out.c (symtab_node::output_to_lto_symbol_table_p):
        Remove FIXME and use builtin_with_linkage_p.

2019-08-13  Richard Sandiford  <richard.sandiford@arm.com>

        PR middle-end/91421
        * tree-core.h (function_decl::function_code): Change type to
        unsigned int.
        * tree.h (DECL_FUNCTION_CODE): Rename old definition to...
        (DECL_UNCHECKED_FUNCTION_CODE): ...this.
        (DECL_BUILT_IN_CLASS): Make an rvalue macro only.
        (DECL_FUNCTION_CODE): New function.  Assert that the built-in class
        is BUILT_IN_NORMAL.
        (DECL_MD_FUNCTION_CODE, DECL_FE_FUNCTION_CODE): New functions.
        (set_decl_built_in_function, copy_decl_built_in_function): Likewise.
        (fndecl_built_in_p): Change the type of the "name" argument to
        unsigned int.
        * builtins.c (expand_builtin): Move DECL_FUNCTION_CODE use
        after check for DECL_BUILT_IN_CLASS.
        * cgraphclones.c (build_function_decl_skip_args): Use
        set_decl_built_in_function.
        * ipa-param-manipulation.c (ipa_modify_formal_parameters): Likewise.
        * ipa-split.c (split_function): Likewise.
        * langhooks.c (add_builtin_function_common): Likewise.
        * omp-simd-clone.c (simd_clone_create): Likewise.
        * tree-streamer-in.c (unpack_ts_function_decl_value_fields): Likewise.
        * config/darwin.c (darwin_init_cfstring_builtins): Likewise.
        (darwin_fold_builtin): Use DECL_MD_FUNCTION_CODE instead of
        DECL_FUNCTION_CODE.
        * fold-const.c (operand_equal_p): Compare DECL_UNCHECKED_FUNCTION_CODE
        instead of DECL_FUNCTION_CODE.
        * lto-streamer-out.c (hash_tree): Use DECL_UNCHECKED_FUNCTION_CODE
        instead of DECL_FUNCTION_CODE.
        * tree-streamer-out.c (pack_ts_function_decl_value_fields): Likewise.
        * print-tree.c (print_node): Use DECL_MD_FUNCTION_CODE when
        printing DECL_BUILT_IN_MD.  Handle DECL_BUILT_IN_FRONTEND.
        * config/aarch64/aarch64-builtins.c (aarch64_expand_builtin)
        (aarch64_fold_builtin, aarch64_gimple_fold_builtin): Use
        DECL_MD_FUNCTION_CODE instead of DECL_FUNCTION_CODE.
        * config/aarch64/aarch64.c (aarch64_builtin_reciprocal): Likewise.
        * config/alpha/alpha.c (alpha_expand_builtin, alpha_fold_builtin):
        (alpha_gimple_fold_builtin): Likewise.
        * config/arc/arc.c (arc_expand_builtin): Likewise.
        * config/arm/arm-builtins.c (arm_expand_builtin): Likewise.
        * config/avr/avr-c.c (avr_resolve_overloaded_builtin): Likewise.
        * config/avr/avr.c (avr_expand_builtin, avr_fold_builtin): Likewise.
        * config/bfin/bfin.c (bfin_expand_builtin): Likewise.
        * config/c6x/c6x.c (c6x_expand_builtin): Likewise.
        * config/frv/frv.c (frv_expand_builtin): Likewise.
        * config/gcn/gcn.c (gcn_expand_builtin_1): Likewise.
        (gcn_expand_builtin): Likewise.
        * config/i386/i386-builtins.c (ix86_builtin_reciprocal): Likewise.
        (fold_builtin_cpu): Likewise.
        * config/i386/i386-expand.c (ix86_expand_builtin): Likewise.
        * config/i386/i386.c (ix86_fold_builtin): Likewise.
        (ix86_gimple_fold_builtin): Likewise.
        * config/ia64/ia64.c (ia64_fold_builtin): Likewise.
        (ia64_expand_builtin): Likewise.
        * config/iq2000/iq2000.c (iq2000_expand_builtin): Likewise.
        * config/mips/mips.c (mips_expand_builtin): Likewise.
        * config/msp430/msp430.c (msp430_expand_builtin): Likewise.
        * config/nds32/nds32-intrinsic.c (nds32_expand_builtin_impl): Likewise.
        * config/nios2/nios2.c (nios2_expand_builtin): Likewise.
        * config/nvptx/nvptx.c (nvptx_expand_builtin): Likewise.
        * config/pa/pa.c (pa_expand_builtin): Likewise.
        * config/pru/pru.c (pru_expand_builtin): Likewise.
        * config/riscv/riscv-builtins.c (riscv_expand_builtin): Likewise.
        * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
        Likewise.
        * config/rs6000/rs6000-call.c (htm_expand_builtin): Likewise.
        (altivec_expand_dst_builtin, altivec_expand_builtin): Likewise.
        (rs6000_gimple_fold_builtin, rs6000_expand_builtin): Likewise.
        * config/rs6000/rs6000.c (rs6000_builtin_md_vectorized_function)
        (rs6000_builtin_reciprocal): Likewise.
        * config/rx/rx.c (rx_expand_builtin): Likewise.
        * config/s390/s390-c.c (s390_resolve_overloaded_builtin): Likewise.
        * config/s390/s390.c (s390_expand_builtin): Likewise.
        * config/sh/sh.c (sh_expand_builtin): Likewise.
        * config/sparc/sparc.c (sparc_expand_builtin): Likewise.
        (sparc_fold_builtin): Likewise.
        * config/spu/spu-c.c (spu_resolve_overloaded_builtin): Likewise.
        * config/spu/spu.c (spu_expand_builtin): Likewise.
        * config/stormy16/stormy16.c (xstormy16_expand_builtin): Likewise.
        * config/tilegx/tilegx.c (tilegx_expand_builtin): Likewise.
        * config/tilepro/tilepro.c (tilepro_expand_builtin): Likewise.
        * config/xtensa/xtensa.c (xtensa_fold_builtin): Likewise.
        (xtensa_expand_builtin): Likewise.

2019-08-13  Richard Sandiford  <richard.sandiford@arm.com>

        PR middle-end/91421
        * attribs.c (decl_attributes): Check the DECL_BUILT_IN_CLASS
        before the DECL_FUNCTION_CODE.
        * calls.c (maybe_warn_alloc_args_overflow): Use fndecl_built_in_p
        to check for a BUILT_IN_ALLOCA call.
        * ipa-cp.c (ipa_get_indirect_edge_target_1): Likewise for
        BUILT_IN_UNREACHABLE.  Don't check for a FUNCTION_TYPE.
        * ipa-devirt.c (possible_polymorphic_call_target_p): Likewise.
        * ipa-prop.c (try_make_edge_direct_virtual_call): Likewise.
        * gimple-ssa-isolate-paths.c (is_addr_local): Check specifically
        for BUILT_IN_NORMAL functions.
        * trans-mem.c (expand_block_edges): Use gimple_call_builtin_p to
        test for BUILT_IN_TM_ABORT.
        * tree-ssa-ccp.c (optimize_stack_restore): Use fndecl_built_in_p
        to check for a BUILT_IN_STACK_RESTORE call.
        (optimize_stdarg_builtin): Remove redundant check for GIMPLE_CALL.
        * tree-ssa-threadedge.c
        (record_temporary_equivalences_from_stmts_at_dest): Check for a
        BUILT_IN_NORMAL decl before checking its DECL_FUNCTION_CODE.
        * tree-vect-patterns.c (vect_recog_pow_pattern): Use a positive
        test for a BUILT_IN_NORMAL call instead of a negative test for
        an internal function call.

2019-08-13  Richard Sandiford  <richard.sandiford@arm.com>

        * tree.h (build_vector_a_then_b): Declare.
        * tree.c (build_vector_a_then_b): New function.
        * fold-const-call.c (fold_while_ult): Likewise.
        (fold_const_call): Use it to handle IFN_WHILE_ULT.
        * config/aarch64/aarch64-protos.h (AARCH64_FOR_SVPATTERN): New macro.
        (aarch64_svpattern): New enum.
        * config/aarch64/aarch64-sve.md (mov<PRED_ALL:mode>): Pass
        constants through aarch64_expand_mov_immediate.
        (*aarch64_sve_mov<PRED_ALL:mode>): Use aarch64_mov_operand rather
        than general_operand as the predicate for operand 1.
        (while_ult<GPI:mode><PRED_ALL:mode>): Add a '@' marker.
        * config/aarch64/aarch64.c (simd_immediate_info::PTRUE): New
        insn_type.
        (simd_immediate_info::simd_immediate_info): New overload that
        takes a scalar_int_mode and an svpattern.
        (simd_immediate_info::u): Add a "pattern" field.
        (svpattern_token): New function.
        (aarch64_get_sve_pred_bits, aarch64_widest_sve_pred_elt_size)
        (aarch64_partial_ptrue_length, aarch64_svpattern_for_vl)
        (aarch64_sve_move_pred_via_while): New functions.
        (aarch64_expand_mov_immediate): Try using
        aarch64_sve_move_pred_via_while for predicates that contain N ones
        followed by M zeros but that do not correspond to a VLnnn pattern.
        (aarch64_sve_pred_valid_immediate): New function.
        (aarch64_simd_valid_immediate): Use it instead of dealing directly
        with PTRUE and PFALSE.
        (aarch64_output_sve_mov_immediate): Handle new simd_immediate_info
        forms.

2019-08-13 Iain Sandoe <iain@sandoe.co.uk>

        * config/darwin.c (machopic_indirect_call_target): Rename symbol stub
        flag.
        (darwin_override_options): Likewise.
        * config/darwin.h: Likewise.
        * config/darwin.opt: Likewise.
        * config/i386/i386.c (output_pic_addr_const): Likewise.
        * config/rs6000/darwin.h: Likewise.
        * config/rs6000/rs6000.c (rs6000_call_darwin_1): Likewise.
        * config/i386/darwin.h (TARGET_MACHO_PICSYM_STUBS): Rename to ...
        ... this TARGET_MACHO_SYMBOL_STUBS.
        (FUNCTION_PROFILER):Likewise.
        * config/i386/i386.h: Likewise.

2019-08-13  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386-expand.c (ix86_expand_vector_extract)
        <case E_V2SImode>: Use vec_extr path for
        TARGET_MMX_WITH_SSE && TARGET_SSE4_1.
        <case E_V8QImode>: Ditto.
        * config/i386/mmx.md (*mmx_pextrw_zext): Rename from mmx_pextrw.
        Use SWI48 mode iterator.  Use %k to output operand 0.
        (*mmx_pextrw): New insn pattern.
        (*mmx_pextrb): Ditto.
        (*mmx_pextrb_zext): Ditto.

2019-08-13  Jonathan Wakely  <jwakely@redhat.com>

        * target.def (libc_has_function, libc_has_fast_function): Improve
        documentation strings.
        * doc/tm.texi: Regenerate.

2019-08-13  Caroline Tice  <cmtice@google.com>

        PR other/91396
        * config/gnu-user.h (GNU_USER_TARGET_ENDFILE_SPEC): Only add the
        vtv_end.o or vtv_end_preinit.o files if !static.

2019-08-13  Olivier Hainque  <hainque@adacore.com>

        * rtl.h (tablejump_casesi_pattern): Move declaration to proper spot.

2019-08-13  Olivier Hainque  <hainque@adacore.com>

        * rtlanal.c (tablejump_casesi_pattern): New function, to
        determine if a tablejump insn is a casesi dispatcher. Extracted
        from patch_jump_insn.
        * rtl.h (tablejump_casesi_pattern): Declare.
        * cfgrtl.c (patch_jump_insn): Use it.
        * dwarf2cfi.c (create_trace_edges): Use it.

2019-08-13  Wilco Dijkstra  <wdijkstr@arm.com>

        PR target/81800
        * gcc/config/aarch64/aarch64.md (lrint): Disable lrint pattern if GPF
        operand is larger than a long int.

2019-08-13  Richard Sandiford  <richard.sandiford@arm.com>

        * machmode.h (opt_mode::else_mode): New function.
        (opt_mode::else_blk): Use it.
        * config/aarch64/aarch64-protos.h (aarch64_vq_mode): Declare.
        (aarch64_full_sve_mode, aarch64_sve_ld1rq_operand_p): Likewise.
        (aarch64_gen_stepped_int_parallel): Likewise.
        (aarch64_stepped_int_parallel_p): Likewise.
        (aarch64_expand_mov_immediate): Remove the optional gen_vec_duplicate
        argument.
        * config/aarch64/aarch64.c
        (aarch64_expand_sve_widened_duplicate): Delete.
        (aarch64_expand_sve_dupq, aarch64_expand_sve_ld1rq): New functions.
        (aarch64_expand_sve_const_vector): Rewrite to handle more cases.
        (aarch64_expand_mov_immediate): Remove the optional gen_vec_duplicate
        argument.  Use early returns in the !CONST_INT_P handling.
        Pass all SVE data vectors to aarch64_expand_sve_const_vector rather
        than handling some inline.
        (aarch64_full_sve_mode, aarch64_vq_mode): New functions, split out
        from...
        (aarch64_simd_container_mode): ...here.
        (aarch64_gen_stepped_int_parallel, aarch64_stepped_int_parallel_p)
        (aarch64_sve_ld1rq_operand_p): New functions.
        * config/aarch64/predicates.md (descending_int_parallel)
        (aarch64_sve_ld1rq_operand): New predicates.
        * config/aarch64/constraints.md (UtQ): New constraint.
        * config/aarch64/aarch64.md (UNSPEC_REINTERPRET): New unspec.
        * config/aarch64/aarch64-sve.md (mov<SVE_ALL:mode>): Remove the
        gen_vec_duplicate from call to aarch64_expand_mov_immediate.
        (@aarch64_sve_reinterpret<mode>): New expander.
        (*aarch64_sve_reinterpret<mode>): New pattern.
        (@aarch64_vec_duplicate_vq<mode>_le): New pattern.
        (@aarch64_vec_duplicate_vq<mode>_be): Likewise.
        (*sve_ld1rq<Vesize>): Replace with...
        (@aarch64_sve_ld1rq<mode>): ...this new pattern.

2019-08-13  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/aarch64/aarch64.c (generic_tunings): Set function alignment to
        16:12.

2019-08-13  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        * config/msp430/driver-msp430.c (msp430_set_driver_var): New.
        * config/msp430/msp430-devices.c (canonicalize_path_dirsep): New.
        (msp430_check_path_for_devices): New.
        (parse_devices_csv_1): New.
        (parse_devices_csv): New.
        (msp430_extract_mcu_data): Try to find devices.csv and search for the
        MCU data in devices.csv before using the hard-coded data.
        Warn if devices.csv isn't found and the MCU wasn't found in the
        hard-coded data either.
        * config/msp430/msp430.h (DRIVER_SELF_SPECS): Call
        msp430_set_driver_var for -mno-warn-devices-csv and -mdevices-csv-loc.
        Search for devices.csv on -I and -L paths.
        (EXTRA_SPEC_FUNCTIONS): Add msp430_check_path_for_devices and
        msp430_set_driver_var.
        * config/msp430/msp430.opt: Add -mwarn-devices-csv and
        -mdevices-csv-loc=.
        * doc/invoke.texi (-mmcu): Document that -I and -L paths are
        searched for devices.csv.
        (mwarn-devices-csv): Document option.

2019-08-13  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_output_ptrue): Delete.
        * config/aarch64/aarch64-sve.md (*aarch64_sve_mov<PRED_ALL:mode>):
        Use a single Dn alternative instead of separate Dz and Dm
        alternatives.  Use aarch64_output_sve_move_immediate.
        * config/aarch64/aarch64.c (aarch64_sve_element_int_mode): New
        function.
        (aarch64_simd_valid_immediate): Fill in the simd_immediate_info
        for predicates too.
        (aarch64_output_sve_mov_immediate): Handle predicate modes.
        (aarch64_output_ptrue): Delete.

2019-08-13  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.c (simd_immediate_info::insn_type): Add
        INDEX.
        (simd_immediate_info::value, simd_immediate_info::step)
        (simd_immediate_info::modifier, simd_immediate_info::shift): Replace
        with...
        (simd_immediate_info::u): ...this new union.
        (simd_immediate_info::simd_immediate_info): Update accordingly.
        (aarch64_output_simd_mov_immediate): Likewise.
        (aarch64_output_sve_mov_immediate): Likewise.

2019-08-13  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        * config.gcc (msp430*-*-*): Add msp430-devices.o to extra_objs and
        extra_gcc_objs.
        * config/msp430/driver-msp430.c: Remove msp430_mcu_data.
        (msp430_select_cpu): New spec function.
        (msp430_select_hwmult_lib): Use msp430_extract_mcu_data to extract
        MCU data.
        * config/msp430/msp430-devices.c: New file.
        * config/msp430/msp430-devices.h: New file.
        * config/msp430/msp430.c: Remove msp430_mcu_data.
        (msp430_option_override): Use msp430_extract_mcu_data to extract
        MCU data.
        (msp430_use_f5_series_hwmult): Likewise.
        (use_32bit_hwmult): Likewise.
        (msp430_no_hwmult): Likewise.
        * config/msp430/msp430.h (ASM_SPEC): Don't pass -mmcu to the
        assembler.
        (DRIVER_SELF_SPECS): Call msp430_select_cpu if -mmcu is used without
        and -mcpu option.
        (EXTRA_SPEC_FUNCTIONS): Add msp430_select_cpu.
        * config/msp430/t-msp430: Add rule to build msp430-devices.o.
        Remove hard-coded MCU multilib data.

2019-08-13  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.c (aarch64_classify_vector_mode): Switch
        based on the mode instead of testing properties of it.

2019-08-13  Richard Sandiford  <richard.sandiford@arm.com>

        * doc/md.texi: Document the x and y constraints for AArch64.
        * config/aarch64/aarch64.h (FP_LO8_REGNUM_P): New macro.
        (FP_LO8_REGS): New reg_class.
        (REG_CLASS_NAMES, REG_CLASS_CONTENTS): Add an entry for FP_LO8_REGS.
        * config/aarch64/aarch64.c (aarch64_hard_regno_nregs)
        (aarch64_regno_regclass, aarch64_class_max_nregs): Handle FP_LO8_REGS.
        * config/aarch64/predicates.md (aarch64_simd_register): Use
        FP_REGNUM_P instead of checking the classes manually.
        * config/aarch64/constraints.md (y): New constraint.

2019-08-13  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/iterators.md (perm_insn): Include the "1"/"2" suffix.
        (perm_hilo): Remove UNSPEC_ZIP*, UNSEPC_TRN* and UNSPEC_UZP*.
        * config/aarch64/aarch64-simd.md
        (aarch64_<PERMUTE:perm_insn><PERMUTE:perm_hilo><mode>): Rename to..
        (aarch64_<PERMUTE:perm_insn><mode>): ...this and remove perm_hilo
        from the asm template.
        * config/aarch64/aarch64-sve.md
        (aarch64_<perm_insn><perm_hilo><PRED_ALL:mode>): Rename to..
        (aarch64_<perm_insn><PRED_ALL:mode>): ...this and remove perm_hilo
        from the asm template.
        (aarch64_<perm_insn><perm_hilo><SVE_ALL:mode>): Rename to..
        (aarch64_<perm_insn><SVE_ALL:mode>): ...this and remove perm_hilo
        from the asm template.
        * config/aarch64/aarch64-simd-builtins.def: Update comment.

2019-08-13  Martin Liska  <mliska@suse.cz>

        * value-prof.c (gimple_ic_transform): Add new line.
        Print details with MSG_NOTE.

2019-08-13  Martin Liska  <mliska@suse.cz>

        * doc/invoke.texi: Document automatic detection of jobserver.
        * lto-wrapper.c (run_gcc): Detect jobserver always.

2019-08-13  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386-expand.c (ix86_expand_vector_set)
        <case E_V2SImode>: Use vec_merge path for
        TARGET_MMX_WITH_SSE && TARGET_SSE4_1.
        <case E_V8QImode>: Ditto.
        * config/i386/mmx.md (*mmx_pinsrd): New insn pattern.
        (*mmx_pinsrb): Ditto.

2019-08-12  Jakub Jelinek  <jakub@redhat.com>

        PR target/83250
        PR target/91340
        * config/i386/avxintrin.h (_mm256_zextpd128_pd256,
        _mm256_zextps128_ps256, _mm256_zextsi128_si256): New intrinsics.
        * config/i386/avx512fintrin.h (_mm512_zextpd128_pd512,
        _mm512_zextps128_ps512, _mm512_zextsi128_si512, _mm512_zextpd256_pd512,
        _mm512_zextps256_ps512, _mm512_zextsi256_si512): Likewise.

2019-08-12  Richard Biener  <rguenther@suse.de>

        PR lto/91375
        * tree.c (free_lang_data_in_type): Do not free TYPE_BINFO dependent on
        flag_devirtualize.

2019-08-12  Richard Biener  <rguenther@suse.de>

        PR driver/91130
        * lto-wrapper.c (get_options_from_collect_gcc_options): Remove
        lang_mask option, always use CL_DRIVER.
        (get_options_from_collect_gcc_options): Adjust.
        (find_and_merge_options): Likewise.
        (run_gcc): Likewise.

2019-08-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * ipa-predicate.c (add_condition): Restore inverted test.

2019-08-10  Jakub Jelinek  <jakub@redhat.com>

        * tree-core.h (enum omp_clause_code): Add OMP_CLAUSE_DEVICE_TYPE.
        (enum omp_clause_device_type_kind): New enum.
        (struct tree_omp_clause): Add subcode.device_type_kind.
        * tree.h (OMP_CLAUSE_DEVICE_TYPE_KIND): Define.
        * tree.c (omp_clause_num_ops, omp_clause_code_name): Add entries
        for device_type clause.
        (walk_tree_1): Handle OMP_CLAUSE_DEVICE_TYPE.
        * tree-pretty-print.c (dump_omp_clause): Likewise.

        PR target/91408
        * config/i386/mmx.md (usadv8qi): Use register_operand instead of
        vector_operand.

2019-08-09  Vladimir Makarov  <vmakarov@redhat.com>

        * reload1.c (finish_spills): Do not check ira_conflicts_p when
        handling spilled pseudos.

2019-08-09  Richard Earnshaw  <rearnsha@arm.com>

        PR target/91386
        * config/aarch64/aarch64.c (aarch64_gen_adjusted_ldpstp): Use copy_rtx
        to preserve the contents of the original insns.

2019-08-09  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/arm.md (addsi3_compare_op1): Add 16-bit thumb-2 variants.
        (addsi3_compare_op2): Likewise.

2019-08-09  Martin Liska  <mliska@suse.cz>

        * alias.c (alias_ptr_types_compatible_p): Strengten
        type comparison in LTO mode.

2019-08-09  Richard Sandiford  <richard.sandiford@arm.com>

        PR middle-end/90313
        * tree-tailcall.c (find_tail_calls): Reject calls that might
        read from an escaped RESULT_DECL.

2019-08-09  Martin Liska  <mliska@suse.cz>

        * doc/invoke.texi: Document the option value.
        * lto-wrapper.c (run_gcc): Set auto_parallel
        only with -flto=auto.

2019-08-09  Martin Liska  <mliska@suse.cz>

        * opts.c (common_handle_option): Error for an invalid argument
        to -flto=.

2019-08-09  Martin Liska  <mliska@suse.cz>

        * ipa-icf.c (sem_function::merge): Define AUTO_DUMP_SCOPE and
        use dump_printf to report optimization.
        (sem_variable::merge): Likwise.
        (sem_item_optimizer::merge_classes): Use dump_printf to report
        ICF hits.

2019-08-09  Martin Liska  <mliska@suse.cz>

        * value-prof.c (gimple_divmod_fixed_value_transform):
        Use dump_printf_loc.
        (gimple_mod_pow2_value_transform): Likewise.
        (gimple_mod_subtract_transform): Likewise.
        (init_node_map): Likewise.
        (gimple_ic_transform): Likewise.
        (gimple_stringops_transform): Likewise.

2019-08-08  Mihailo Stojanovic  <mistojanovic@wavecomp.com>

        * doc/extend.texi: Add const qualifier to ld intrinsics.

2019-08-08  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/dfp.md (D64_D128): Rename to ...
        (DDTD): ... this, throughout.
        (dfp_suffix): Rename to ...
        (q): ... this, throughout.

2019-08-08  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/dfp.md (D64_D128): Move earlier in the file.
        (dfp_suffix): Ditto.
        (adddd3, addtd3): Merge to ...
        (add<mode>3 for D64_D128): ... this.
        (subdd3, subtd3): Merge to ...
        (sub<mode>3 for D64_D128): ... this.
        (muldd3, multd3): Merge to ...
        (mul<mode>3 for D64_D128): ... this.
        (divdd3, divtd3): Merge to ...
        (div<mode>3 for D64_D128): ... this.
        (*cmpdd_internal1, *cmptd_internal1): Merge to ...
        (*cmp<mode>_internal1 for D64_D128): ... this.
        (ftruncdd2, ftrunctd2): Merge to ...
        (ftrunc<mode>2 for D64_D128): ... this.
        (fixdddi2, fixtddi2): Merge to ...
        (fix<mode>di2 for D64_D128): ... this.

2019-08-08  Jim Wilson  <jimw@sifive.com>

        PR target/91229
        * config/riscv/riscv.c (riscv_flatten_aggregate_field): New arg
        ignore_zero_width_bit_field_p.  Skip zero size bitfields when true.
        Pass into recursive call.
        (riscv_flatten_aggregate_argument): New arg.  Pass to
        riscv_flatten_aggregate_field.
        (riscv_pass_aggregate_in_fpr_pair_p): New local warned.  Call
        riscv_flatten_aggregate_argument twice, with false and true as last
        arg.  Process result twice.  Compare results and warn if different.
        (riscv_pass_aggregate_in_fpr_and_gpr_p): Likewise.

2019-08-08  Martin Liska  <mliska@suse.cz>

        PR bootstrap/91352
        * gcc.c (driver::detect_jobserver): Use is_valid_fd.
        * lto-wrapper.c (jobserver_active_p): Likewise.

2019-08-08  Martin Liska  <mliska@suse.cz>

        * cgraphclones.c (set_new_clone_decl_and_node_flags): Drop
        IS_OPERATOR_NEW and IS_OPERATOR_DELETE.
        (create_version_clone_with_body): Likewise.

2019-08-08  Jakub Jelinek  <jakub@redhat.com>

        * gimplify.c (omp_add_variable): Use GOVD_PRIVATE | GOVD_EXPLICIT
        for VLA helper variables on target data even if not GOVD_FIRSTPRIVATE.
        (gimplify_scan_omp_clauses): For OMP_CLAUSE_USE_DEVICE_* use just
        GOVD_EXPLICIT flags.
        (gimplify_omp_workshare): For OMP_TARGET_DATA move all
        OMP_CLAUSE_USE_DEVICE_* clauses to the end of clauses chain.
        * omp-low.c (scan_sharing_clauses): For OMP_CLAUSE_USE_DEVICE_*
        call install_var_field with mask 11 instead of 3.
        (lower_omp_target): For OMP_CLAUSE_USE_DEVICE_* use pass
        (splay_tree_key) &DECL_UID (var) to build_sender_ref instead of var.

2019-08-07  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/constraints.md (Z): Handle floating-point zeros too.
        * config/aarch64/predicates.md (aarch64_reg_or_zero): Likewise.

2019-08-07  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-sve.md (vec_shl_insert_<mode>): Add
        MOVPRFX alternatives.  Make the GPR alternatives more expensive
        than the FPR ones.

2019-08-07  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-sve.md (fold_extract_last_<mode>):
        Disparage the GPR alternative relative to the FPR one.
        Fix handling of 8-bit and 16-bit FPR values.

2019-08-07  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/iterators.md (BITWISEV): Delete.
        (SVE_INT_REDUCTION, SVE_FP_REDUCTION): New int iterators.
        (optab): Handle UNSPEC_UMAXV, UNSPEC_UMINV, UNSPEC_SMAXV,
        UNSPEC_SMINV, UNSPEC_FADDV, UNSPEC_FMAXNMV, UNSPEC_FMAXV,
        UNSPEC_FMINNMV, UNSPEC_FMINV.
        (bit_reduc_op): Delete.
        (sve_int_op): New int attribute.
        (sve_fp_op): Handle UNSPEC_FADDV, UNSPEC_FMAXNMV, UNSPEC_FMAXV,
        UNSPEC_FMINNMV, UNSPEC_FMINV.
        * config/aarch64/aarch64-sve.md
        (reduc_<MAXMINV:maxmin_uns>_scal_<SVE_I:mode>)
        (*reduc_<MAXMINV:maxmin_uns>_scal_<SVE_I:mode>)
        (reduc_<BITWISEV:optab>_scal_<SVE_I:mode>)
        (*reduc_<BITWISEV:optab>_scal_<SVE_I:mode>): Merge into...
        (reduc_<SVE_INT_REDUCTION:optab>_scal_<SVE_I:mode>)
        (*reduc_<SVE_INT_REDUCTION:optab>_scal_<SVE_I:mode>): ...these
        new patterns.
        (reduc_plus_scal_<SVE_F:mode>, *reduc_plus_scal_<SVE_I:mode>)
        (reduc_<FMAXMINV:optab>_scal_<SVE_F:mode>)
        (*reduc_<FMAXMINV:optab>_scal_<SVE_F:mode>): Merge into...
        (reduc_<SVE_FP_REDUCTION:optab>_scal_<SVE_F:mode>)
        (*reduc_<SVE_FP_REDUCTION:optab>_scal_<SVE_F:mode>): ...these
        new patterns.

2019-08-07  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-sve.md (fma<mode>4, *fma<mode>4)
        (fnma<mode>4, *fnma<mode>4, fnms<mode>4, *fnms<mode>4)
        (fms<mode>4, *fms<mode>4): Replace with...
        (<SVE_COND_FP_TERNARY:optab><SVE_F:mode>4)
        (*<SVE_COND_FP_TERNARY:optab><SVE_F:mode>4): ...these new patterns.
        Use unspecs instead of rtx codes.
        (cond_<optab><mode>, *cond_<optab><mode>_2, *cond_<optab><mode>_4)
        (*cond_<optab><mode>_any): Add the predicate to SVE_COND_FP_TERNARY.

2019-08-07  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/iterators.md (SVE_COND_FP_MAXMIN_PUBLIC): New
        int iterator.
        (maxmin_uns_op): Handle UNSPEC_COND_FMAXNM and UNSPEC_COND_FMINNM.
        * config/aarch64/aarch64-sve.md
        (<FMAXMIN:su><FMAXMIN:maxmin><SVE_F:mode>3): Rename to...
        (<SVE_COND_FP_MAXMIN_PUBLIC:optab><SVE_F:mode>3): ...this and
        use a single unspec for the rhs.
        (*<su><maxmin><mode>3): Delete.
        (<maxmin_uns><SVE_F:mode>3): Use a single unspec for the rhs.

2019-08-07  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/iterators.md (UNSPEC_COND_FABS, UNSPEC_COND_FNEG)
        (UNSPEC_COND_FRINTA, UNSPEC_COND_FRINTI, UNSPEC_COND_FRINTM)
        (UNSPEC_COND_FRINTN, UNSPEC_COND_FRINTP, UNSPEC_COND_FRINTX)
        (UNSPEC_COND_FRINTZ, UNSPEC_COND_FSQRT): New unspecs.
        (optab, sve_fp_op): Handle them.
        (SVE_FP_UNARY): Delete.
        (optab): Remove sqrt entry.
        (sve_fp_op): Remove neg, abs and sqrt entries.
        (SVE_COND_FP_UNARY): New int iterator.
        * config/aarch64/aarch64-sve.md (<frint_pattern><mode>2)
        (*<frint_pattern><mode>2): Delete.
        (<SVE_FP_UNARY:optab><SVE_F:mode>2): Replace with...
        (<SVE_COND_FP_UNARY:optab><SVE_F:mode>2): ...this.
        (*<SVE_FP_UNARY:optab><SVE_F:mode>2): Replace with...
        (*<SVE_COND_FP_UNARY:optab><SVE_F:mode>2): ...this.

2019-08-07  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-sve.md (*pred_fold_left_plus_<mode>): Delete.

2019-08-07  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/iterators.md (UNSPEC_COND_ADD): Rename to...
        (UNSPEC_COND_FADD): ...this.
        (UNSPEC_COND_SUB): Rename to...
        (UNSPEC_COND_FSUB): ...this.
        (UNSPEC_COND_MUL): Rename to...
        (UNSPEC_COND_FMUL): ...this.
        (UNSPEC_COND_DIV): Rename to...
        (UNSPEC_COND_FDIV): ...this.
        (UNSPEC_COND_MAX): Rename to...
        (UNSPEC_COND_FMAXNM): ...this.
        (UNSPEC_COND_MIN): Rename to...
        (UNSPEC_COND_FMINNM): ...this.
        (UNSPEC_COND_LT): Rename to...
        (UNSPEC_COND_FCMLT): ...this.
        (UNSPEC_COND_LE): Rename to...
        (UNSPEC_COND_FCMLE): ...this.
        (UNSPEC_COND_EQ): Rename to...
        (UNSPEC_COND_FCMEQ): ...this.
        (UNSPEC_COND_NE): Rename to...
        (UNSPEC_COND_FCMNE): ...this.
        (UNSPEC_COND_GE): Rename to...
        (UNSPEC_COND_FCMGE): ...this.
        (UNSPEC_COND_GT): Rename to...
        (UNSPEC_COND_FCMGT): ...this.
        (SVE_COND_FP_BINARY, SVE_COND_FP_CMP, optab, cmp_op, sve_fp_op)
        (sve_fp_op_rev): Update accordingly.
        * config/aarch64/aarch64.c (aarch64_unspec_cond_code): Likewise.

2019-08-07  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-sve.md: Reorganize contents and add
        banner comments.
        * config/aarch64/check-sve-md.awk: New file.
        * config/aarch64/t-aarch64 (s-check-sve-md): New rule.
        (insn-conditions.md): Depend on it.

2019-08-07  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/91385
        * config/i386/sse.md (*negsi2_1_zext): Simplify insn pattern.
        (*negsi2_cmpz_zext): Ditto.

2019-08-07  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/iterators.md (commutative): Remove.

2019-08-07  Richard Earnshaw  <rearnsha@arm.com>

        PR driver/91130
        * lto-wrapper.c (find_and_merge_options): Use CL_DRIVER when
        processing COLLECT_GCC_OPTIONS.
        (run_gcc): Likewise.

2019-08-07  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR tree-optimization/91109
        * lra-remat.c (update_scratch_ops): Remove assignment of the
        hard register.

2019-08-07  Richard Sandiford  <richard.sandiford@arm.com>

        * data-streamer.h (streamer_write_poly_uint64): Declare.
        (streamer_read_poly_uint64): Likewise.
        * data-streamer-in.c (streamer_read_poly_uint64): New function.
        * data-streamer-out.c (streamer_write_poly_uint64): Likewise.
        * ipa-predicate.h (condition::size): Turn into a poly_int64.
        (add_condition): Take a poly_int64 size.
        * ipa-predicate.c (add_condition): Likewise.
        * ipa-prop.h (ipa_load_from_parm_agg): Take a poly_int64 size pointer.
        * ipa-prop.c (ipa_load_from_parm_agg): Likewise.
        (ipcp_modif_dom_walker::before_dom_children): Update accordingly.
        * ipa-fnsummary.c (evaluate_conditions_for_known_args): Handle
        condition::size as a poly_int64.
        (unmodified_parm_1): Take a poly_int64 size pointer.
        (unmodified_parm): Likewise.
        (unmodified_parm_or_parm_agg_item): Likewise.
        (set_cond_stmt_execution_predicate): Update accordingly.
        (set_switch_stmt_execution_predicate): Likewise.
        (will_be_nonconstant_expr_predicate): Likewise.
        (will_be_nonconstant_predicate): Likewise.
        (inline_read_section): Stream condition::size as a poly_int.
        (ipa_fn_summary_write): Likewise.

2019-08-07  Martin Liska  <mliska@suse.cz>

        * fold-const.c (twoval_comparison_p): Replace int
        with bool as a return type.
        (simple_operand_p): Likewise.
        (operand_equal_p): Replace int with bool as a return type.
        * fold-const.h (operand_equal_p): Likewise.

2019-08-07  Jakub Jelinek  <jakub@redhat.com>

        * tree-core.h (enum omp_clause_code): Adjust OMP_CLAUSE_USE_DEVICE_PTR
        OpenMP description.  Add OMP_CLAUSE_USE_DEVICE_ADDR clause.
        * tree.c (omp_clause_num_ops, omp_clause_code_name): Add entries
        for OMP_CLAUSE_USE_DEVICE_ADDR clause.
        (walk_tree_1): Handle OMP_CLAUSE_USE_DEVICE_ADDR.
        * tree-pretty-print.c (dump_omp_clause): Likewise.
        * tree-nested.c (convert_nonlocal_omp_clauses,
        convert_local_omp_clauses): Likewise.
        * gimplify.c (gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses):
        Likewise.
        * omp-low.c (scan_sharing_clauses, lower_omp_target): Likewise.
        Treat OMP_CLAUSE_USE_DEVICE_ADDR like OMP_CLAUSE_USE_DEVICE_PTR
        clause with array or reference to array types, no matter what type
        except for reference it has.

2019-08-07  Kewen Lin  <linkw@gcc.gnu.org>

        * config/rs6000/vector.md (vrotr<mode>3): New define_expand.

2019-08-07  Kito Cheng  <kito.cheng@sifive.com>

        * config/riscv/multilib-generator: (canonical_order): Add 'g'.
        (arch_canonicalize): Support rv32g and rv64g and fix error
        handling.

2019-08-06  Martin Liska  <mliska@suse.cz>

        * cgraph.c (cgraph_node::dump): Dump DECL_IS_OPERATOR_NEW_P
        and DECL_IS_OPERATOR_DELETE_P.

2019-08-06  Jakub Jelinek  <jakub@redhat.com>

        * tree.h (OMP_CLAUSE_LASTPRIVATE_TASKLOOP_IV): Rename to ...
        (OMP_CLAUSE_LASTPRIVATE_LOOP_IV): ... this.  Adjust comment.
        * gimplify.c (gimple_add_tmp_var): In SIMD contexts, turn addressable
        new vars into GOVD_PRIVATE rather than GOVD_LOCAL.
        (gimplify_omp_for): Don't do C++ random access iterator clause
        adjustments on combined constructs from OMP_LOOP.  For OMP_LOOP,
        don't predetermine the artificial iterator in case of C++ random
        access iterators as lastprivate, but private.  For OMP_LOOP, force
        bind expr around simd body and force for_pre_body before the
        construct.  Use OMP_CLAUSE_LASTPRIVATE_LOOP_IV instead of
        OMP_CLAUSE_LASTPRIVATE_TASKLOOP_IV.
        (gimplify_omp_loop): Add firstprivate clauses on OMP_PARALLEL for
        diff var of C++ random access iterators.  Handle
        OMP_CLAUSE_FIRSTPRIVATE.  For OMP_CLAUSE_LASTPRIVATE_LOOP_IV, if
        not outermost also add OMP_CLAUSE_FIRSTPRIVATE, and in both cases
        clear OMP_CLAUSE_LASTPRIVATE_LOOP_IV on the lastprivate clause
        on the OMP_FOR and OMP_DISTRIBUTE constructs if any.
        * omp-low.c (lower_rec_input_clauses): For
        OMP_CLAUSE_LASTPRIVATE_LOOP_IV on simd copy construct the private
        variables instead of default constructing them.
        (lower_lastprivate_clauses): Use OMP_CLAUSE_LASTPRIVATE_LOOP_IV
        instead of OMP_CLAUSE_LASTPRIVATE_TASKLOOP_IV and move the
        is_taskloop_ctx check from the assert to the guarding condition.

2019-08-06  Kito Cheng  <kito.cheng@sifive.com>

        * config/riscv/multilib-generator: (canonical_order): New.
        (arch_canonicalize): Dito.
        Apply arch_canonicalize for alts.

2019-08-05  Martin Sebor  <msebor@redhat.com>

        * doc/extend.texi (Common Variable Attributes): Document alias
        attribute.

2019-08-05  Marek Polacek  <polacek@redhat.com>

        PR c++/91338 - Implement P1161R3: Deprecate a[b,c].
        * doc/invoke.texi: Document -Wcomma-subscript.

2019-08-05  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-core.h (tree_function_decl): Make function_code an
        independent field.  Group the remaining bitfields into bytes
        and move decl_type so that it contines to be at a byte boundary.
        Leave 12 bits for future expansion.

2019-08-05  Richard Sandiford  <richard.sandiford@arm.com>

        * gimple-fold.c (gimple_fold_mask_load_store_mem_ref)
        (gimple_fold_mask_load, gimple_fold_mask_store): New functions.
        (gimple_fold_call): Use them to fold IFN_MASK_LOAD and
        IFN_MASK_STORE.

2019-08-05  Richard Sandiford  <richard.sandiford@arm.com>

        * gimple.h (gimple_move_vops): Declare.
        * gimple.c (gimple_move_vops): New function
        * gimple-fold.c (replace_call_with_call_and_fold)
        (gimple_fold_builtin_memory_op, gimple_fold_builtin_memset)
        (gimple_fold_builtin_stpcpy, fold_builtin_atomic_compare_exchange)
        (gimple_fold_call): Use it.
        * ipa-param-manipulation.c (ipa_modify_call_arguments): Likewise.
        * tree-call-cdce.c (use_internal_fn): Likewise.
        * tree-if-conv.c (predicate_load_or_store): Likewise.
        * tree-ssa-ccp.c (optimize_atomic_bit_test_and): Likewise.
        * tree-ssa-math-opts.c (pass_cse_reciprocals::execute): Likewise.
        * tree-ssa-propagate.c (finish_update_gimple_call): Likewise.
        (update_call_from_tree): Likewise.
        * tree-vect-stmts.c (vectorizable_load): Likewise.
        * tree-vectorizer.c (adjust_simduid_builtins): Likewise.

2019-08-05  Martin Liska  <mliska@suse.cz>

        PR c++/91334
        * tree-ssa-dce.c (propagate_necessity): Handle new operators
        with not arguments.
        (eliminate_unnecessary_stmts): Likewise.

2019-08-05  Richard Biener  <rguenther@suse.de>

        PR middle-end/91169
        * fold-const.c (get_array_ctor_element_at_index): Create
        offset_ints according to the sign of the index type and treat
        that as signed if it is obviously so.

2019-08-05  Jakub Jelinek  <jakub@redhat.com>

        PR target/91341
        * config/i386/avxintrin.h (_mm256_loadu2_m128, _mm256_storeu2_m128,
        _mm256_loadu2_m128d, _mm256_storeu2_m128d, _mm256_loadu2_m128i,
        _mm256_storeu2_m128i): New function.

2019-08-05  Kito Cheng  <kito.cheng@sifive.com>

        * config/riscv/riscv.c (riscv_promote_function_mode): New.
        (TARGET_PROMOTE_FUNCTION_MODE): Use riscv_promote_function_mode.

2019-08-05  Alan Modra  <amodra@gmail.com>

        PR target/91349
        * config/rs6000/freebsd64.h (CPLUSPLUS_CPP_SPEC),
        (LINK_GCC_C_SEQUENCE_SPEC): Undef.

2019-08-04  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/install.texi (Prerequisites): Remove reference to Tcl 8.6
        bug that was fixed in Tcl 8.6.1.

2019-08-02  Michael Meissner  <meissner@linux.ibm.com>

        * config/rs6000/future.md: New file.
        * config/rs6000/rs6000.md: Include future.md.
        * config/rs6000/t-rs6000 (MD_INCLUDES): Add future.md.

2019-08-02  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * function.c (assign_parm_adjust_stack_rtl): Revise STRICT_ALIGNMENT
        check to use targetm.slow_unaligned_access instead.

        * function.c (assign_param_data_one): Remove unused data members.

2019-08-02  Steve Ellcey  <sellcey@marvell.com>

        * omp-simd-clone.c (simd_clone_adjust_return_type): Remove call to
        build_distinct_type_copy.
        (simd_clone_adjust_argument_types): Ditto.
        (simd_clone_adjust): Call build_distinct_type_copy here.
        (expand_simd_clones): Ditto.

2019-08-02  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/91201
        * config/i386/sse.md (*vec_extractv16qi_zext): New insn pattern.

2019-08-02  Alexander Monakov  <amonakov@ispras.ru>

        * tree-ssa-loop-im.c (sort_bbs_in_loop_postorder_cmp): Simplify casts
        from 'const void *'.
        (sort_locs_in_loop_postorder_cmp): Likewise.

2019-08-02  Eric Botcazou  <ebotcazou@adacore.com>

        * doc/invoke.texi (hot-bb-count-fraction): Rework description.
        (hot-bb-count-ws-permille): Likewise.
        (hot-bb-frequency-fraction): Likewise.
        (unlikely-bb-count-fraction): Likewise.
        * params.def (hot-bb-count-fraction): Rework description.
        (hot-bb-count-ws-permille): Likewise.
        (hot-bb-frequency-fraction): Likewise.
        (unlikely-bb-count-fraction): Likewise.  Remove min and max values.
        * predict.c (get_hot_bb_threshold): Deal with 0 HOT_BB_COUNT_FRACTION.

2019-08-02  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/91323
        * config/i386/i386-expand.c (ix86_unordered_fp_compare) <case LTGT>:
        Return false.

2019-08-02  Richard Biener  <rguenther@suse.de>

        * vec.h (vec::sort): Add gcc_qsort_r support.
        (vec::bsearch): Add an overload with gcc_qsort_r style callbacks.
        * tree-ssa-loop-im.c (sort_bbs_in_loop_postorder_cmp): Adjust
        to gcc_qsort_r style callback.
        (sort_locs_in_loop_postorder_cmp): Likewise.
        (analyze_memory_references): Use gcc_sort_r interfaces.
        (find_ref_loc_in_loop_cmp): Use new bsearch overload.

2019-08-02  Martin Liska  <mliska@suse.cz>

        PR lto/91313
        * gcc.c (driver::maybe_run_linker): Call detect_jobserver
        to detect working job server.
        (driver::detect_jobserver): Test whether jobserver
        is active from GCC driver. That will prevent situation where
        GCC is invoked from a LD plugin and the linker already uses
        file descriptors suggested by make.  That leads to a wrong
        detection.
        * gcc.h (driver): Add detect_jobserver.
        * lto-wrapper.c (jobserver_active_p): Simplify sscanf by
        not scanning for --jobserver-auth prefix.

2019-08-02  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/91201
        * config/i386/i386-expand.c (ix86_expand_vector_extract): For elt == 0
        V16QImode extraction without sse4.1 try to use V4SImode lowpart
        extraction.

2019-08-01  Martin Sebor  <msebor@redhat.com>

        PR c++/90947
        * tree.c (type_initializer_zero_p): Define.
        * tree.h (type_initializer_zero_p): New function.

2019-08-01  Eric Botcazou  <ebotcazou@adacore.com>

        * cfgrtl.c (relink_block_chain): Add line returns in dump file.

2019-08-01  Eric Botcazou  <ebotcazou@adacore.com>

        * cgraph.h (cgraph_edge::maybe_hot_p): Tweak comment.
        * cgraph.c (cgraph_edge::maybe_hot_p): Likewise.  Remove useless test.
        * predict.c (maybe_hot_count_p): Likewise.
        (maybe_hot_bb_p): Tweak comment.
        (maybe_hot_edge_p): Likewise.
        (probably_never_executed): Likewise.  Minor tweak.
        (probably_never_executed_bb_p): Likewise.
        (unlikely_executed_edge_p): Likewise.
        (probably_never_executed_edge_p): Likewise.
        (optimize_function_for_size_p): Likewise.
        (optimize_function_for_speed_p): Likewise.
        (function_optimization_type): Likewise.
        (optimize_bb_for_size_p): Likewise.
        (optimize_bb_for_speed_p): Likewise.
        (bb_optimization_type): Likewise.
        (optimize_edge_for_size_p): Likewise.
        (optimize_edge_for_speed_p): Likewise.
        (optimize_insn_for_size_p): Likewise.
        (optimize_insn_for_speed_p): Likewise.
        (optimize_loop_for_size_p): Likewise.
        (optimize_loop_for_speed_p): Likewise.
        (optimize_loop_nest_for_speed_p): Likewise.
        (optimize_loop_nest_for_size_p): Likewise.
        (predictable_edge_p): Likewise.
        (handle_missing_profiles): Minor tweak.

2019-08-01  Michael Meissner  <meissner@linux.ibm.com>

        * config/rs6000/predicates.md (pcrel_external_address): Update
        comment.

2019-08-01  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/85693
        * config/i386/mmx.md (usadv8qi): New expander.

2019-08-01  Matthew Beliveau  <mbelivea@redhat.com>

        PR c++/90590
        * c-warn.c (c_do_switch_warnings): Suppress warning for enumerators
        with reserved names that are in a system header.

2019-08-01  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/mmx.md (vec_extractv2si_0): Add (r,x) alternative.
        (*vec_extractv2si_0_zext_sse4): New insn pattern.
        (*vec_extractv2si_0_zext): Ditto.
        (*vec_extractv2si_1): Add (rm,x) alternative.
        (*vec_extractv2si_1_zext): New insn pattern.
        (*vec_extractv2si_zext_mem): Add "TARGET_MMX || TARGET_MMX_WITH_SSE"
        insn constraint.

2019-08-01  Richard Biener  <rguenther@suse.de>

        * domwalk.c (bb_postorder): Remove static variable.
        (cmp_bb_postorder): Adjust.
        (sort_bbs_postorder): Adjust and use gcc_sort_r.
        (dom_walker::walk): Adjust.

2019-08-01  Alexander Monakov  <amonakov@ispras.ru>

        * sort.cc (sort_r_ctx): New struct.
        (reorder23): Make templated on context type.
        (reorder45): Ditto.
        (cmp1): Ditto.  Adjust signature.
        (netsort): Ditto.
        (mergesort): Ditto.
        [CHECKING_P] (cmp2to3): New static function.  Use it...
        (gcc_qsort) [CHECKING_P]: ...here.
        (gcc_sort_r): New function.
        * system.h (sort_r_cmp_fn): New function typedef.
        (qsort_chk): Adjust signature.
        (gcc_sort_r): Declare.
        * vec.c (qsort_chk_error): Adjust.
        (qsort_chk): Adjust.

2019-08-01  Richard Biener  <rguenther@suse.de>

        * tree-ssa-pre.c (has_abnormal_preds): Remove global var.
        (compute_antic): Localize it here.

2019-07-31  Maxim Blinov  <maxim.blinov@embecosm.com>

        * common/config/riscv/riscv-common.c: Check -march string ends
        with null.

2019-07-31  Alexander Monakov  <amonakov@ispras.ru>

        * ipa-devirt.c (type_warning_cmp): Make static.
        (decl_warning_cmp): Ditto.

2019-07-31  Peter Bergner  <bergner@linux.ibm.com>

        PR target/91050
        * config/rs6000/rs6000.opt (mdejagnu-cpu=): Delete option.
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Remove
        use of deleted rs6000_dejagnu_cpu_index variable.
        * config/rs6000/rs6000.h (DRIVER_SELF_SPECS): Define.
        (SUBTARGET_DRIVER_SELF_SPECS): Likewise.
        * config/darwin.h (DRIVER_SELF_SPECS): Rename from this ...
        (SUBTARGET_DRIVER_SELF_SPECS): ...to this.
        * config/i386/i386.h (DRIVER_SELF_SPECS): Define.
        (SUBTARGET_DRIVER_SELF_SPECS): Likewise.

2019-07-31  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91280
        * tree-ssa-structalias.c (get_constraint_for_component_ref):
        Decompose MEM_REF manually for offset handling.

2019-07-31  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91293
        * tree-vect-slp.c (vect_build_slp_tree_2): Do not swap operands
        of reduction stmts.

2019-07-31  Matt Thomas  <matt@3am-software.com>
            Nick Hudson  <nick@nthcliff.demon.co.uk>
            Matthew Green  <mrg@eterna.com.au>
            Maya Rashish  <coypu@sdf.org>

        * config.gcc (hppa*-*-netbsd*): New target.
        * config/pa/pa-netbsd.h: New file.
        * config/pa/pa32-netbsd.h: New file.

2019-07-31  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/91201
        * config/i386/mmx.md (reduc_plus_scal_v8qi): New expander.

2019-07-31  Andrew Stubbs  <ams@codesourcery.com>

        * config/gcn/gcn-valu.md
        (scatter<mode>_insn_1offset<exec_scatter>): Remove s_waitcnt.
        (scatter<mode>_insn_1offset_ds<exec_scatter>): Likewise.
        (scatter<mode>_insn_2offsets<exec_scatter>): Likewise.
        * config/gcn/gcn.c (gcn_md_reorg): Add delayeduse and reads to
        struct ilist. Add nops for delayeduse insns.
        * config/gcn/gcn.md (delayeduse): New attribute.
        (*movbi): Remove s_waitcnt from stores.
        (*mov<mode>_insn): Likewise.
        (*movti_insn): Likewise. Add delayeduse attribute.
        (sync_compare_and_swap<mode>_insn): Add delayeduse attribute.
        (atomic_store<mode>): Remove or adjust s_waitcnt.

2019-07-31  Richard Biener  <rguenther@suse.de>

        * vr-values.h (vr_values::swap_vr_value): New.
        (vr_values::free_value_range): likewise.
        * vr-values.c (vr_values::swap_vr_value): Implement.
        * gimple-ssa-evrp-analyze.h (evrp_range_analyzer::pop_value_range):
        Do not return a range or take a var.
        (evrp_range_analyzer::stack): Change back to recording a non-const
        value_range *.
        * gimple-ssa-evrp-analyze.c
        (evrp_range_analyzer::record_ranges_from_stmt): Free unused
        value-range.
        (evrp_range_analyzer::pop_to_marker): Adjust.
        (evrp_range_analyzer::push_value_range): Use new swap_vr_value.
        (evrp_range_analyzer::pop_value_range): Likewise.  Free the
        no longer needed value-range.

2019-07-31  Martin Liska  <mliska@suse.cz>

        * tree-ssa-dce.c (propagate_necessity): Delete operator can
        have size and (or) alignment as 2nd and later arguments.
        Mark all of them as necessary.

2019-07-31  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91178
        * tree-ssa-sccvn.c (vn_reference_maybe_forwprop_address):
        Use tail-recursion.

2019-07-31  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/91201
        * config/i386/sse.md (reduc_plus_scal_v16qi): New expander.
        (REDUC_PLUS_MODE): Add V32QImode for TARGET_AVX and V64QImode for
        TARGET_AVX512F.
        (reduc_plus_scal_<mode>): Improve formatting by introducing
        a temporary.

2019-07-31  Sudakshina Das  <sudi.das@arm.com>

        * config/aarch64/aarch64-builtins.c (enum aarch64_builtins): Add
        AARCH64_TME_BUILTIN_TSTART, AARCH64_TME_BUILTIN_TCOMMIT,
        AARCH64_TME_BUILTIN_TTEST and AARCH64_TME_BUILTIN_TCANCEL.
        (aarch64_init_tme_builtins): New.
        (aarch64_init_builtins): Call aarch64_init_tme_builtins.
        (aarch64_expand_builtin_tme): New.
        (aarch64_expand_builtin): Handle TME builtins.
        * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins): Define
        __ARM_FEATURE_TME when enabled.
        * config/aarch64/aarch64-option-extensions.def: Add "tme".
        * config/aarch64/aarch64.h (AARCH64_FL_TME, AARCH64_ISA_TME): New.
        (TARGET_TME): New.
        * config/aarch64/aarch64.md (define_c_enum "unspec"): Add UNSPEC_TTEST.
        (define_c_enum "unspecv"): Add UNSPECV_TSTART, UNSPECV_TCOMMIT and
        UNSPECV_TCANCEL.
        (tstart, ttest, tcommit, tcancel): New instructions.
        * config/aarch64/arm_acle.h (__tstart, __tcommit): New.
        (__tcancel, __ttest): New.
        (_TMFAILURE_REASON, _TMFAILURE_RTRY, _TMFAILURE_CNCL): New macro.
        (_TMFAILURE_MEM, _TMFAILURE_IMP, _TMFAILURE_ERR): Likewise.
        (_TMFAILURE_SIZE, _TMFAILURE_NEST, _TMFAILURE_DBG): Likewise.
        (_TMFAILURE_INT, _TMFAILURE_TRIVIAL): Likewise.
        * config/arm/types.md: Add new tme type attr.
        * doc/invoke.texi: Document "tme".

2019-07-31  Joel Hutton  <Joel.Hutton@arm.com>

        * config/arm/arm_cmse.h (cmse_nonsecure_caller): Add
        warn_unused_result attribute.
        (cmse_check_address_range): Add warn_unused_result attribute.

2019-07-31  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91257
        * tree-vrp.c (union_ranges): Unify equality and less tests
        by using compare_values.  Re-order cheap tests first.

2019-07-31  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/91301
        * gimplify.c (gimplify_omp_for): If for class iterator on
        distribute parallel for there is no data sharing clause
        on inner_for_stmt, look for private clause on combined
        parallel too and if found, move it to inner_for_stmt.

2019-07-31  Richard Sandiford  <richard.sandiford@arm.com>

        * lra-int.h (lra_operand_data): Remove early_clobber field.
        (lra_insn_reg): Likewise.
        * lra.c (debug_operand_data): Update accordingly.
        (setup_operand_alternative): Likewise.
        (new_insn_reg): Likewise.  Remove early_clobber parameter.
        (collect_non_operand_hard_regs): Update call accordingly.
        Don't assign to lra_insn_reg::early_clobber.
        (add_regs_to_insn_regno_info): Remove early_clobber parameter
        and update calls to new_insn_reg.
        (lra_update_insn_regno_info): Update calls accordingly.
        * lra-constraints.c (update_and_check_small_class_inputs): Take the
        alternative number as a parameter and test whether the operand
        is earlyclobbered in that particular alternative.
        (process_alt_operands): Update call accordingly.  Use per-alternative
        checks for earyclobber here too.
        * lra-lives.c (reg_early_clobber_p): Check early_clobber_alts
        against zero for IRA_UNKNOWN_ALT.

2019-07-30  Uroš Bizjak  <ubizjak@gmail.com>

        * config/alpha/alpha.c (alpha_option_override): Quote a C type.

2019-07-30  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/arm/thumb2.md (thumb2_movsi_insn): Adjust literal offset.
        * config/arm/vfp.md (thumb2_movsi_vfp): Likewise.

2019-07-30  Martin Liska  <mliska@suse.cz>

        PR ipa/89330
        * cgraph.c (cgraph_edge::make_direct): Use
        edge->indirect_unknown_callee as edge->resolve_speculation can
        deallocate edge which is this pointer.

2019-07-30  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91257
        * bitmap.c (bitmap_ior_and_compl_into): Open-code.

2019-07-30  Martin Liska  <mliska@suse.cz>

        * doc/invoke.texi: Document new behavior.
        * lto-wrapper.c (cpuset_popcount): New function
        is a copy of libgomp/config/linux/proc.c.
        (init_num_threads): Likewise.
        (run_gcc): Automatically detect core count for -flto.
        (jobserver_active_p): New function.

2019-07-30  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91257
        * bitmap.h (bitmap_ior_into_and_free): Declare.
        * bitmap.c (bitmap_list_unlink_element): Add defaulted param
        whether to add the unliked element to the freelist.
        (bitmap_list_insert_element_after): Add defaulted param for
        an already allocated element.
        (bitmap_ior_into_and_free): New function.
        * tree-ssa-structalias.c (condense_visit): Reduce the
        ponts-to and edge bitmaps of the SCC members in a
        logarithmic fashion rather than all to one.

2019-07-30  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-ssa-math-opts.c (convert_mult_to_fma): Add a mul_cond
        parameter.  When nonnull, make sure that the addition or subtraction
        has the same condition.
        (math_opts_dom_walker::after_dom_children): Try convert_mult_to_fma
        for CFN_COND_MUL too.

2019-07-30  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91291
        * tree-ssa-sccvn.c (rpo_elim::eliminate_push_avail): Ignore
        constant values.

2019-07-30  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/91216
        * omp-low.c (global_nonaddressable_vars): New variable.
        (use_pointer_for_field): For global decls, if they are non-addressable,
        remember it in the global_nonaddressable_vars bitmap, if they are
        addressable and in the global_nonaddressable_vars bitmap, ignore their
        TREE_ADDRESSABLE bit.
        (omp_copy_decl_2): Clear TREE_ADDRESSABLE also on private copies of
        vars in global_nonaddressable_vars bitmap.
        (execute_lower_omp): Free global_nonaddressable_vars bitmap.

        PR target/91150
        * config/i386/i386-expand.c (expand_vec_perm_blend): Change mask type
        from unsigned to unsigned HOST_WIDE_INT.  For E_V64QImode cast
        comparison to unsigned HOST_WIDE_INT before shifting it left.

2019-07-30  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (movstrict<mode>): Use register_operand
        predicate for operand 0.  Add expander condition.  Assert that
        operand 0 is a SUBREG RTX.
        (*movstrict<mode>_1): Use register_operand predicate for operand 0.
        Update operand constraints and insn condition.
        (zero_extend<mode>si2_and): Do not call gen_movstrict<mode>.
        (zero_extendqihi2_and): Do not call gen_movstrictqi.
        (*setcc_qi_slp): Use register_operand predicate for operand 0.
        Update operand 0 constraints.
        (setcc_qi_slp splitters): Use register_operand predicate for operand 0.

2019-07-29  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        * config/msp430/msp430.h (DRIVER_SELF_SPECS): Define and emit errors
        when -m{code,data}-region are used without -mlarge.
        * config/msp430/msp430.c (msp430_option_override): Error when a
        non-default code or data region is used without -mlarge.
        (msp430_section_attr): Emit a warning and do not add upper/lower/either
        attributes when they are used without -mlarge.

2019-07-29  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        PR target/70320
        * config/msp430/msp430.h: Define ADDITIONAL_REGISTER_NAMES.

2019-07-29  Richard Sandiford  <richard.sandiford@arm.com>

        PR middle-end/91242
        * wide-int.h (generic_wide_int::sext_elt): New function.
        * inchash.h (hash::add_wide_int): Use it instead of elt.

2019-07-29  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/arm-builtins.c (acle_builtin_data): Expand VAR1 to
        CODE_FOR_arm_##.
        * config/arm/arm.md (<crc_variant>): Rename to...
        (arm_<crc_variant>): ... This.
        (<cdp>): Rename to...
        (arm_<cdp>): ... This.
        (<ldc>): Rename to...
        (arm_<ldc>): ... This.
        (<stc>): Rename to...
        (arm_<stc>): ... This.
        (<mcr>): Rename to...
        (arm_<mcr>): ... This.
        (<mrc>): Rename to...
        (arm_<mrc>): ... This.
        (<mcrr>): Rename to...
        (arm_<mcrr>): ... This.
        (<mrrc>): Rename to...
        (arm_<mrrc>): ... This.

2019-07-29  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91257
        * tree-ssa-sccvn.h (struct vn_avail): New.
        (struct vn_ssa_aux): Add avail member.
        * tree-ssa-sccvn.c (class rpo_elim): Remove m_rpo_avail
        member, add m_avail_freelist one.
        (rpo_elim::~rpo_elim): Remove.
        (rpo_elim::eliminate_avail): Adjust to new avail tracking
        data structure.
        (rpo_elim::eliminate_push_avail): Likewise.
        (do_unwind): Likewise.
        (do_rpo_vn): Likewise.

2019-07-29  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91257
        * tree-vrp.c (operand_less_p): Avoid dispatching to fold for
        most cases, instead call compare_values which handles the
        symbolic ranges we handle specially.
        (compare_values_warnv): Do not call operand_less_p but open-code
        the effective fold calls.  Avoid converting so much.

2019-07-29  Martin Liska  <mliska@suse.cz>

        * tree-ssa-dce.c (eliminate_unnecessary_stmts): Do not
        remove LHS of operator new call.  It's handled latter.

2019-07-29  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91267
        * vr-values.c (vr_values::update_value_range): Add early return
        for effectively VARYING lattice entry.

2019-07-29  Richard Sandiford  <richard.sandiford@arm.com>

        PR debug/86638
        * tree-ssa-dce.c (keep_all_vdefs_p): New function.
        (mark_stmt_if_obviously_necessary): Mark all stmts with vdefs as
        necessary if keep_all_vdefs_p is true.
        (mark_aliased_reaching_defs_necessary): Add a gcc_checking_assert
        that keep_all_vdefs_p is false.
        (mark_all_reaching_defs_necessary): Likewise.
        (propagate_necessity): Skip the vuse scan if keep_all_vdefs_p is true.

2019-07-29  Richard Sandiford  <richard.sandiford@arm.com>

        * common.opt (Og): Change the initial value of flag_dse to 0.
        * opts.c (default_options_table): Move OPT_ftree_dse from
        OPT_LEVELS_1_PLUS to OPT_LEVELS_1_PLUS_NOT_DEBUG.  Also add
        OPT_fdse to OPT_LEVELS_1_PLUS_NOT_DEBUG.  Put the OPT_ftree_pta
        entry before the OPT_ftree_sra entry.
        * doc/invoke.texi (Og): Add -fdse and -ftree-dse to the list
        of flags disabled by Og.

2019-07-29  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-cfg.c (execute_fixup_cfg): Don't delete stores to write-only
        variables for -Og.

2019-07-29  Richard Sandiford  <richard.sandiford@arm.com>

        * doc/sourcebuild.texi (check-function-bodies): Document.

2019-07-29  Richard Sandiford  <richard.sandiford@arm.com>

        * simplify-rtx.c (simplify_const_unary_operation): Fold a
        VEC_DUPLICATE of a fixed-length vector even if the result
        is variable-length.  Likewise fold a duplicate of a
        variable-length vector if the variable-length vector is
        itself a duplicate of a fixed-length sequence.
        (test_vector_ops_duplicate): Test more cases.

2019-07-29  Richard Sandiford  <richard.sandiford@arm.com>

        * vector-builder.h (vector_builder): Add a shape template parameter.
        (vector_builder::new_unary_operation): New function, generalizing
        the old tree_vector_builder function.
        (vector_builder::new_binary_operation): Likewise.
        (vector_builder::binary_encoded_nelts): Likewise.
        * int-vector-builder.h (int_vector_builder): Update template
        parameters to vector_builder.
        (int_vector_builder::shape_nelts): New function.
        * rtx-vector-builder.h (rtx_vector_builder): Update template
        parameters to vector_builder.
        (rtx_vector_builder::shape_nelts): New function.
        (rtx_vector_builder::nelts_of): Likewise.
        (rtx_vector_builder::npatterns_of): Likewise.
        (rtx_vector_builder::nelts_per_pattern_of): Likewise.
        * tree-vector-builder.h (tree_vector_builder): Update template
        parameters to vector_builder.
        (tree_vector_builder::shape_nelts): New function.
        (tree_vector_builder::nelts_of): Likewise.
        (tree_vector_builder::npatterns_of): Likewise.
        (tree_vector_builder::nelts_per_pattern_of): Likewise.
        * tree-vector-builder.c (tree_vector_builder::new_unary_operation)
        (tree_vector_builder::new_binary_operation): Delete.
        (tree_vector_builder::binary_encoded_nelts): Likewise.
        * simplify-rtx.c: Include rtx-vector-builder.h.
        (distributes_over_addition_p): New function.
        (simplify_const_unary_operation)
        (simplify_const_binary_operation): Generalize handling of vector
        constants to include variable-length vectors.
        (test_vector_ops_series): Add more tests.

2019-07-28  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/91222
        * ipa-devirt.c (warn_types_mismatch): Compare indentifiers
        than INDENTIFIER_POINTER.

2019-07-28  Martin Liska  <mliska@suse.cz>

        PR ipa/89330
        * cgraph.c (symbol_table::create_edge): Always allocate
        a cgraph_edge.
        (symbol_table::free_edge): Store summary_id to
        edge_released_summary_ids if != -1;
        * cgraph.h (NEXT_FREE_NODE): Remove.
        (SET_NEXT_FREE_NODE): Likewise.
        (NEXT_FREE_EDGE): Likewise.
        (symbol_table::release_symbol): Store summary_id to
        cgraph_released_summary_ids if != -1;
        (symbol_table::allocate_cgraph_symbol): Always allocate
        a cgraph_node.

2019-07-28  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000-call.c (rs6000_output_mi_thunk): Use
        gen_sibcall.

2019-07-28  Alan Modra  <amodra@gmail.com>

        PR target/91135
        * config/rs6000/linux.h (GNU_USER_TARGET_D_OS_VERSIONS): Don't
        define.
        * config/rs6000/linux64.h (TARGET_OS_CPP_BUILTINS): Invoke
        GNU_USER_TARGET_OS_CPP_BUILTINS for aixdesc abi.
        (GNU_USER_TARGET_D_OS_VERSIONS): Don't define.

2019-07-28  Alan Modra  <amodra@gmail.com>

        PR target/91050
        * config/rs6000/sysv4.h (ASM_DEFAULT_SPEC): Modify if -m64.
        * config/rs6000/default64.h (ASM_DEFAULT_SPEC): Define.
        * config/rs6000/freebsd64.h (ASM_DEFAULT_SPEC): Don't define.
        * config/rs6000/linux64.h (ASM_DEFAULT_SPEC): Likewise.
        * config/rs6000/rtems.h (ASM_DEFAULT_SPEC): Likewise.
        * config/rs6000/rs6000.h (ASM_DEFAULT_EXTRA): Define and use
        in asm_default spec.
        * config/rs6000/eabialtivec.h (ASM_DEFAULT_EXTRA): Redefine.
        * config/rs6000/linuxaltivec.h (ASM_DEFAULT_EXTRA): Redefine.

2019-07-28  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/include/gpl_v3.texi (Copying): Use https for www.gnu.org.

2019-07-26  Tamar Christina  <tamar.christina@arm.com>

        PR target/89517
        * config.gcc: Relax parsing of AARCH64_OPT_EXTENSION.
        * config/aarch64/aarch64-option-extensions.def: Add new comments
        and restore easier to read options.

2019-07-26  Tamar Christina  <tamar.christina@arm.com>

        * convert.c (convert_to_real_1): Move part of conversion code...
        * match.pd: ...To here.

2019-07-26  Martin Jambor  <mjambor@suse.cz>

        PR ipa/89330
        * ipa-inline-transform.c (check_speculations_1): New function.
        (push_all_edges_in_set_to_vec): Likewise.
        (check_speculations): Use check_speculations_1, new parameter
        new_edges.
        (inline_call): Pass new_edges to check_speculations.
        * ipa-inline.c (add_new_edges_to_heap): Assert edge_callee is not
        NULL.
        (speculation_useful_p): Early return true if edge is inlined, remove
        later checks for inline_failed.

2019-07-25  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/91223
        * lra-constraints.c (process_alt_operands): Fail for unsuccessful
        matching with INOUT operand.

2019-07-25  Eric Botcazou  <ebotcazou@adacore.com>

        * stmt.c (expand_case): Try to narrow the index type if it's larger
        than a word.  Tidy up.

2019-07-25  Eric Botcazou  <ebotcazou@adacore.com>

        * cif-code.def (NEVER_CALL): New code.
        * ipa-inline.c (want_inline_small_function_p): Fix formatting issues.
        Set the failure to CIF_NEVER_CALL if the IPA count is zero.

2019-07-25  Wilco Dijkstra  <wdijkstr@arm.com>

        * config/arm/thumb2.md (thumb2_movsi_insn): Fix load/store low reg.
        * config/arm/vfp.md (thumb2_movsi_vfp): Likewise.

2019-07-23  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-devirt.c (add_type_duplicate): Fix return value.

2019-07-25  Richard Biener  <rguenther@suse.de>

        * tree-vrp.c (extract_range_from_multiplicative_op): Add
        type parameter and use it instead of guessing expression
        type from the first operand.
        (extract_range_from_binary_expr): Pass expr_type down.

2019-07-25  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/arm.md (SATrev): Change to code attribute.
        (*satsi_<SAT:code>): Adjust for the above.
        (*satsi_<SAT:code>_shift): Likewise.

2019-07-25  Richard Biener  <rguenther@suse.de>

        * gimple-loop-versioning.cc (loop_versioning::prune_loop_conditions):
        Make value_range * temporary const.
        * gimple-ssa-evrp-analyze.c (evrp_range_analyzer::try_find_new_range):
        Likewise.
        (evrp_range_analyzer::record_ranges_from_): Likewise.
        (evrp_range_analyzer::pop_value_range): Return a const value_range *,
        deal with having recorded a const one.
        * gimple-ssa-evrp-analyze.h (evrp_range_analyzer::get_value_range):
        Return a const value_range *.
        (evrp_range_analyzer::pop_value_range): Likewise.
        (evrp_range_analyzer::stack): Record const value_range *s.
        * gimple-ssa-evrp.c (evrp_dom_walker::before_dom_children):
        Adjust.
        * gimple-ssa-sprintf.c (get_int_range): Likewise.
        (format_integer): Likewise.
        (sprintf_dom_walker::handle_gimple_call): Likewise.
        * tree-ssa-dom.c (simplify_stmt_for_jump_threading): Likewise.
        * tree-vrp.c (vrp_prop::set_def_to_varying): Add.
        (vrp_prop::get_value_range): Adjust.
        (vrp_prop::vrp_initialize): Use set_def_to_varying instead of
        modifying the lattice in-place.
        (vrp_prop::visit_stmt): Likewise.
        * vr-values.c (vr_values::get_lattice_entry): New private method.
        (vr_values::get_value_range): Wrap it and return a const
        value_range *.
        (vr_values::set_def_to_varying): New.
        (vr_values::set_defs_to_varying): Use it.
        (vr_values::update_value_range): Likewise.
        (vr_values::vrp_stmt_computes_nonzero): Adjust.
        (values::op_with_constant_singleton_va): Likewise.
        (vr_values::extract_range_for_var_from_co): Likewise.
        (vr_values::extract_range_from_ssa_name): Likewise.
        (vr_values::extract_range_from_cond_expr): Likewise.
        (vr_values::extract_range_basic): Likewise.
        (compare_ranges): Take const value_range *, adjust.
        (compare_range_with_value): Likewise.
        (vrp_valueize): Adjust.
        (vrp_valueize_1): Likewise.
        (vr_values::get_vr_for_comparison): Return a const value_range *.
        (vr_values::compare_name_with_value): Adjust.
        (vr_values::compare_names): Likewise.
        (vr_values::vrp_evaluate_conditional_warnv_with_ops_using_ranges):
        Likewise.
        (vr_values::vrp_evaluate_conditional): Likewise.
        (find_case_label_ranges): Take a const value_range *.
        (vr_values::vrp_visit_switch_stmt): Adjust.
        (vr_values::extract_range_from_phi_node): Likewise.
        (vr_values::simplify_div_or_mod_using_ran): Likewise.
        (vr_values::simplify_abs_using_ranges): Likewise.
        (test_for_singularity): Take a const value_range *.
        (range_fits_type_p): Likewise.
        (vr_values::simplify_cond_using_ranges_1): Adjust.
        (vr_values::simplify_cond_using_ranges_2): Likewise.
        (vr_values::simplify_switch_using_ranges): Likewise.
        (vr_values::simplify_float_conversion_usi): Likewise.
        (vr_values::two_valued_val_range_p): Likewise.
        * vr-values.h (vr_values::get_value_range): Return a const
        value_range *.
        (vr_values::set_def_to_varying): New.
        (vr_values::get_lattice_entry): New private method.
        (vr_values::get_vr_for_comparison): Return a const value_range *.

2019-07-25  Martin Liska  <mliska@suse.cz>
            Dominik Infuhr  <dominik.infuehr@theobroma-systems.com>

        PR c++/23383
        * common.opt: Add -fallocation-dce
        * gimple.c (gimple_call_operator_delete_p): New.
        * gimple.h (gimple_call_operator_delete_p): Likewise.
        * tree-core.h (enum function_decl_type): Add OPERATOR_DELETE.
        * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Handle
        DECL_IS_OPERATOR_DELETE_P.
        (mark_all_reaching_defs_necessary_1): Likewise.
        (propagate_necessity): Likewise.
        (eliminate_unnecessary_stmts): Handle
        gimple_call_operator_delete_p.
        * tree-streamer-in.c (unpack_ts_function_decl_value_fields):
        Add packing of OPERATOR_DELETE.
        * tree-streamer-out.c (pack_ts_function_decl_value_fields):
        Similarly here.
        * tree.h (DECL_IS_OPERATOR_DELETE_P): New.
        (DECL_SET_IS_OPERATOR_DELETE): New.
        (DECL_IS_REPLACEABLE_OPERATOR_NEW_P): Likewise.

2019-07-25  Martin Liska  <mliska@suse.cz>

        * calls.c (maybe_warn_alloc_args_overflow): Use new macros
        (e.g. DECL_SET_LAMBDA_FUNCTION and DECL_LAMBDA_FUNCTION_P).
        * coverage.c (coverage_begin_function): Likewise.
        * fold-const.c (tree_expr_nonzero_warnv_p): Likewise.
        * gimple.c (gimple_call_nonnull_result_p): Likewise.
        * ipa-icf.c (sem_item::compare_referenced_symbol_properties): Likewise.
        (sem_item::hash_referenced_symbol_properties): Likewise.
        * lto-streamer-out.c (hash_tree): Likewise.
        * predict.c (expr_expected_value_1): Likewise.
        * tree-inline.c (expand_call_inline): Likewise.
        * tree-streamer-in.c (unpack_ts_function_decl_value_fields): Likewise.
        * tree-streamer-out.c (pack_ts_function_decl_value_fields): Likewise.
        * tree-core.h (enum function_decl_type): New enum.
        (struct tree_function_decl): Remove operator_new_flag and lambda_function.
        * tree.h (FUNCTION_DECL_DECL_TYPE): New.
        (set_function_decl_type): Likewise.
        (DECL_IS_OPERATOR_NEW_P): New.
        (DECL_SET_IS_OPERATOR_NEW): Likewise.
        (DECL_LAMBDA_FUNCTION): Likewise.
        (DECL_LAMBDA_FUNCTION_P): Likewise.
        (DECL_IS_OPERATOR_NEW): Remove.
        (DECL_SET_LAMBDA_FUNCTION): Likewise.

2019-07-25  Xiong Hu Luo  <luoxhu@linux.ibm.com>

        * ipa-profile.c (get_most_common_single_value): Use
        get_nth_most_common_value.
        * profile.c (sort_hist_value): New function.
        (compute_value_histograms): Call sort_hist_value to sort the
        values after loading from disk.
        * value-prof.c (get_most_common_single_value): Rename to ...
        get_nth_most_common_value.  Add input params n, return
        the n_th value and count.
        (gimple_divmod_fixed_value_transform): Use
        get_nth_most_common_value.
        (gimple_ic_transform): Likewise.
        (gimple_stringops_transform): Likewise.
        * value-prof.h (get_most_common_single_value): Add input params
        n, default to 0.

2019-07-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91236
        * tree-ssa-sccvn.c (vn_walk_cb_data::push_partial_def): Fix
        size of CONSTRUCTOR write.  Fix buffer size we pass to
        native_encode_expr.

2019-07-24  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        * config.gcc (msp430*-*-*): Fix non-GNU style in r273774.
        * config/msp430/msp430.h (ENDFILE_SPEC): Fix non-GNU style in
        r273773.

2019-07-24  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        * config.gcc (msp430*-*-*): Enable initfini_array by default unless
        explicitly disabled with --disable-initfini-array.

2019-07-24  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        * config/msp430/msp430.h (ENDFILE_SPEC): Wrap uses of crtn*.o in
        if-exists.

2019-07-24  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/91183
        PR tree-optimization/86688
        * builtins.c (compute_objsize): Handle MEM_REF.
        * tree-ssa-strlen.c (class ssa_name_limit_t): New.
        (get_min_string_length): Remove.
        (count_nonzero_bytes): New function.
        (handle_char_store): Rename...
        (handle_store): to this.  Handle multibyte stores via integer types.
        (strlen_check_and_optimize_stmt): Adjust conditional and the called
        function name.

2019-07-24  Martin Sebor  <msebor@redhat.com>

        PR driver/80545
        * diagnostic.c (diagnostic_classify_diagnostic): Use lang_mask.
        (diagnostic_report_diagnostic): Same.
        * diagnostic.h (diagnostic_context::option_enabled): Add an argument.
        (diagnostic_context::lang_mask): New data member.
        * ipa-pure-const.c (suggest_attribute): Use
        lang_hooks.option_lang_mask ().
        * opts-common.c (option_enabled): Handle new argument.
        (get_option_state): Pass an additional argument.
        * opts.c (print_filtered_help): Print supported languages for
        unsupported options.  Adjust printing of current state.
        * opts.h (option_enabled): Add argument.
        * toplev.c (print_switch_values): Use lang_mask.
        (general_init): Set global_dc->lang_mask.

2019-07-24  Iain Sandoe  <iain@sandoe.co.uk>

        PR bootstrap/87030
        * config/i386/darwin.h (REAL_LIBGCC_SPEC): Revert change from r273749.

2019-07-24  Giuliano Belinassi  <giuliano.belinassi@usp.br>

        * cgraphunit.c (symbol_table::compile): Start and stop
        TV_CGRAPH_IPA_PASSES and TV_CGRAPH_FUNC_EXPANSION timers.
        * timevar.def (TV_CGRAPH_IPA_PASSES, TV_CGRAPH_FUNC_EXPANSION): New.

2019-07-24  Oliver Browne  <oliverbrowne62@gmail.com>

        * gimplify.c (flag_instrument_functions_exclude_p): Include
        namespace/class information in the printable name.
        * opts.c (add_comma_separated_to_vector): Add NUL terminator
        to tokens entered into the vector.

2019-07-24  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-nested.c (build_simple_mem_ref_notrap): New function.
        (get_static_chain): Call it instead of build_simple_mem_ref.
        (get_frame_field): Likewise.
        (get_nonlocal_debug_decl): Likewise.
        (convert_nonlocal_reference_op): Likewise.

2019-07-24  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc-protos.h (arc_output_function_epilogue): Delete
        declaration.
        (arc_compute_frame_size): Millicode is disabled when compiling
        ISR.
        (arc_return_address_register): Likewise.
        (arc_compute_function_type): Likewise.
        (arc_compute_frame_size): Likewise.
        (secondary_reload_info): Likewise.
        (arc_get_unalign): Likewise.
        (arc_can_use_return_insn): Declare.
        * config/arc/arc.c (AUX_LP_START): Define
        (AUX_LP_END): Likewise.
        (arc_frame_info): Update gmask member to 64-bit datum.
        (GMASK_LEN): Update.
        (arc_compute_function_type): Make it static, move it forward.
        (arc_must_save_register): Update, consider the extra regs.
        (arc_compute_millicode_save_restore_regs): Update to use the 64
        bit gmask.
        (arc_compute_frame_size): Likewise.
        (arc_enter_leave_p): Likewise.
        (arc_save_callee_saves): Likewise.
        (arc_restore_callee_saves): Likewise.
        (arc_save_callee_enter): Likewise.
        (arc_restore_callee_leave): Likewise.
        (arc_save_callee_milli): Likewise.
        (arc_restore_callee_milli): Likewise.
        (arc_expand_prologue): Add new interrupt handling.
        (arc_return_address_register): Make it static, move it forward.
        (arc_expand_epilogue): Add new interrupt handling.
        (arc_get_unalign): Delete.
        (arc_epilogue_uses): Make sure we do not remove the extra
        saved/restored registers when interrupt.
        (arc_can_use_return_insn): New function.
        (push_reg): Likewise.
        (pop_reg): Likewise.
        (arc_save_callee_saves): Add ZOL and FPX aux registers saving
        procedures.
        (arc_restore_callee_saves): Likewise, but restoring.
        * config/arc/arc.md (VUNSPEC_ARC_ARC600_RTIE): Define.
        (R33_REG): Likewise.
        (R34_REG): Likewise.
        (R35_REG): Likewise.
        (R36_REG): Likewise.
        (R37_REG): Likewise.
        (R38_REG): Likewise.
        (R39_REG): Likewise.
        (R45_REG): Likewise.
        (R46_REG): Likewise.
        (R47_REG): Likewise.
        (R48_REG): Likewise.
        (R49_REG): Likewise.
        (R50_REG): Likewise.
        (R51_REG): Likewise.
        (R52_REG): Likewise.
        (R53_REG): Likewise.
        (R54_REG): Likewise.
        (R55_REG): Likewise.
        (R56_REG): Likewise.
        (R58_REG): Likewise.
        (type): Add rtie attribute.
        (in_call_delay_slot): Use RETURN_ADDR_REGNUM.
        (movsi_insn): Accept moves to lp_count.
        (rtie): Update pattern.
        (simple_return): Simplify it, don't use this pattern as a return
        from an interrupt.
        (arc600_rtie): New pattern.
        (p_return_i): Clean up.
        (return): Likewise.
        * config/arc/builtins.def (rtie): Only available for non ARC6xx
        family CPUs.
        * config/arc/predicates.md (move_src_operand): Consider lp_count
        as a register.

2019-07-24  Andreas Krebbel  <krebbel@linux.ibm.com>

        * config/s390/predicates.md (addv_const_operand): New predicate.
        * config/s390/s390-modes.def (CCO): New condition code mode.
        * config/s390/s390.c (s390_match_ccmode_set): Handle E_CCOmode.
        (s390_branch_condition_mask): Likewise.
        * config/s390/s390.md ("addv<mode>4", "subv<mode>4")
        ("mulv<mode>4"): New expanders.
        ("*addv<mode>3_ccoverflow", "*addv<mode>3_ccoverflow_const")
        ("*subv<mode>3_ccoverflow", "*mulv<mode>3_ccoverflow"): New
        pattern definitions.

2019-07-24  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR middle-end/91166
        * match.pd (vec_perm_expr(v, v, mask) -> v): New pattern.
        (define_predicates): Add entry for uniform_vector_p.
        (vec_same_elem_p): New match pattern.

2019-07-24  Iain Sandoe  <iain@sandoe.co.uk>

        PR bootstrap/87030
        * config/i386/darwin.h (REAL_LIBGCC_SPEC): Move from here...
        * config/i386/darwin32-biarch.h .. to here.
        * config/i386/darwin64-biarch.h: Adjust comments.
        * config/rs6000/darwin32-biarch.h: Likewise.
        * config/rs6000/darwin64-biarch.h: Likewise.
        * config.gcc: Missed commit from r273746
        (*-*-darwin*): Don't include CPU t-darwin here.
        (i[34567]86-*-darwin*): Adjust to use biarch files. Produce
        an error message if i686-darwin configuration is attempted for
        Darwin >= 18.

2019-07-23  Iain Sandoe  <iain@sandoe.co.uk>

        PR bootstrap/87030
        * config.gcc (*-*-darwin*): Don't include CPU t-darwin here.
        (i[34567]86-*-darwin*): Adjust to use biarch files. Produce
        an error message if i686-darwin configuration is attempted for
        Darwin >= 18.
        (x86_64-*-darwin*): Switch to single multilib for Darwin >= 18.
        (powerpc-*-darwin*): Use biarch files where needed.
        (powerpc64-*-darwin*): Likewise.
        * config/i386/darwin.h (REAL_LIBGCC_SPEC): Move to new biarch file.
        (DARWIN_ARCH_SPEC, DARWIN_SUBARCH_SPEC): Revise for default single
        arch case.
        * config/i386/darwin32-biarch.h: New.
        * config/i386/darwin64.h: Rename.
        * config/i386/darwin64-biarch.h: To this.
        * config/i386/t-darwin: Rename.
        * config/i386/t-darwin32-biarch: To this.
        * config/i386/t-darwin64: Rename.
        * config/i386/t-darwin64-biarch: To this.
        * config/rs6000/darwin32-biarch.h: New.
        * config/rs6000/darwin64.h: Rename.
        * config/rs6000/darwin64-biarch.h: To this.
        (DARWIN_ARCH_SPEC, DARWIN_SUBARCH_SPEC): Revise for default single
        arch case.
        * config/rs6000/t-darwin8: Rename.
        * config/rs6000/t-darwin32-biarch: To this.
        * config/rs6000/t-darwin64 Rename.
        * config/rs6000/t-darwin64-biarch: To this.

2019-07-23  Martin Sebor  <msebor@redhat.com>

        * configure.ac (ACX_PROG_CXX_WARNING_OPTS): Revert r273311.

2019-07-23  Vladislav Ivanishin  <vlad@ispras.ru>

        * gdbinit.in (reload-gdbhooks): New command with an attached doc string.
        (rh): New alias for it.

2019-07-23  Vladislav Ivanishin  <vlad@ispras.ru>

        * gdbhooks.py: Pass replace=True to
        gdb.printing.register_pretty_printer.

2019-07-23  Richard Biener  <rguenther@suse.de>

        PR debug/91231
        * lto-streamer-in.c (input_function): Drop inline-entry markers
        that ended up with an unknown location block.

2019-07-23  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/83518
        * tree-ssa-sccvn.c (vn_reference_lookup_3): Handle aggregate
        init from a constant even when partial defs are already recorded.

2019-07-23  Jan Hubicka  <hubicka@ucw.cz>

        * i386-common.c: Use PROCESSOR_ZNVER2 scheduler for znver2.
        * config/i386/znver1.md: Enable patterns for znver2 and add store
        variants which use extra AGU unit.

2019-07-23  Jan Hubicka  <hubicka@ucw.cz>

        * config/i386/i386-options.c (ix86_option_override_internal): Default
        PARAM_AVOID_FMA_MAX_BITS to 256 for znver2.
        * config/i386/x86-tune.def (X86_TUNE_AVOID_256FMA_CHAINS): Set
        for ZNVER2.

2019-07-23  Jan Hubicka  <hubicka@ucw.cz>

        * config/i386/x86-tune-costs.h (znver2_memcpy): Update.
        (znver2_costs): Update 256 bit SSE costs and multiplication.

2019-07-23  Jan Beulich  <jbeulich@suse.com>

        * config/i386/sse.md (<avx512>_cvtmask2<ssemodesuffix><mode>):
        Require only AVX512F.
        (*<avx512>_cvtmask2<ssemodesuffix><mode>): Likewise.  Add
        alternative expanding to vpternlog.

2019-07-23  Martin Liska  <mliska@suse.cz>

        * dwarf2out.c (gen_producer_string): Canonize -flto=N
        to -flto in dwarf producer string.

2019-07-23  Richard Biener  <rguenther@suse.de>

        * tree-cfg.c (label_for_bb): Remove global var.
        (main_block_label): Take label_for_bb as argument.
        (cleanup_dead_labels_eh): Likewise, adjust.
        (cleanup_dead_labels): Adjust.

2019-07-22  Paul A. Clarke  <pc@us.ibm.com>

        * doc/extend.texi (Basic PowerPC Built-in Functions Available on all
        Configurations): Add documentation for __builtin_mtfsf.

2019-07-22  Ilia Diachkov  <ilia.diachkov@optimitech.com>

        * config/riscv/riscv-opts.h (struct riscv_align_data): New.
        * config/riscv/riscv.c (riscv_constant_alignment): Use
        riscv_align_data_type.
        * config/riscv/riscv.h (RISCV_EXPAND_ALIGNMENT): New.
        (DATA_ALIGNMENT): Use RISCV_EXPAND_ALIGNMENT.
        (LOCAL_ALIGNMENT): Use RISCV_EXPAND_ALIGNMENT.
        * config/riscv/riscv.opt (malign-data): New.
        * doc/invoke.texi (RISC-V Options): Document -malign-data=.

2019-07-02  Giuliano Belinassi  <giuliano.belinassi@usp.br>

        * cgraph.c (dump_graphviz): New function.
        * cgraph.h (dump_graphviz): New function.
        * symtab.c (dump_graphviz): New function.

2019-07-22  Sylvia Taylor  <sylvia.taylor@arm.com>

        * config/aarch64/aarch64-simd.md
        (*aarch64_simd_sra<mode>): New.
        * config/aarch64/iterators.md
        (SHIFTRT): New iterator.
        (sra_op): New attribute.

2019-07-22  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        * config/msp430/msp430.c (msp430_preserve_reg_p): Don't save
        callee-saved regs R4->R10 in an interrupt function that calls another
        function.

2019-07-22  Paul A. Clarke  <pc@us.ibm.com>

        * config/rs6000/smmintrin.h (_mm_blend_epi16): New.
        (_mm_blendv_epi8): New.

2019-07-22  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91221
        * tree-ssa-sccvn.c (vn_reference_lookup_3): Appropriately
        restrict partial-def handling of empty constructors and
        memset to refs with known offset.

2019-07-22  Jan Beulich  <jbeulich@suse.com>

        * config/i386/sse.md (ternlogsuffix): New.
        (one_cmpl<mode>2): Don't force CONSTM1_RTX into a register when
        AVX512F is in use.
        (<mask_codefor>one_cmpl<mode>2<mask_name>): New.

2019-07-22  Martin Liska  <mliska@suse.cz>

        * config/avr/avr.c (avr_asm_output_aligned_decl_common): Update
        comment.
        * toplev.c (compile_file): Do not emit __gnu_lto_v1 symbol.

2019-07-22  Martin Liska  <mliska@suse.cz>

        * lto-section-in.c (lto_get_section_data):
        Use new function get_compression.
        * lto-streamer-out.c (produce_lto_section): Use
        set_compression to encode compression algorithm.
        * lto-streamer.h (struct lto_section): Do not
        use bitfields in the format.

2019-07-22  Martin Liska  <mliska@suse.cz>

        PR driver/91172
        * opts-common.c (decode_cmdline_option): Decode
        argument of -Werror and check it for a wrong language.
        * opts-global.c (complain_wrong_lang): Remove such case.

2019-07-22  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (prepare_move_operands): Always use an
        intermediate register when storing a TLS symbols.

2019-07-22  Stafford Horne  <shorne@gmail.com>

        * config/or1k/or1k.c (or1k_expand_compare): Check for int before
        force_reg.

2019-07-22  Stafford Horne  <shorne@gmail.com>

        * config.gcc (or1k*-*-*): Add mhard-float, mdouble-float, msoft-float
        and munordered-float validations.
        * config/or1k/constraints.md (d): New register constraint.
        * config/or1k/predicates.md (fp_comparison_operator): New.
        * config/or1k/or1k.c (or1k_print_operand): Add support for printing 'd'
        operands.
        (or1k_expand_compare): Normalize unordered comparisons.
        * config/or1k/or1k.h (reg_class): Define DOUBLE_REGS.
        (REG_CLASS_NAMES): Add "DOUBLE_REGS".
        (REG_CLASS_CONTENTS): Add contents for DOUBLE_REGS.
        * config/or1k/or1k.md (type): Add fpu.
        (fpu): New instruction reservation.
        (F, f, fr, fi, FI, FOP, fop): New.
        (<fop><F:mode>3): New ALU instruction definition.
        (float<fi><F:mode>2): New conversion instruction definition.
        (fix_trunc<F:mode><fi>2): New conversion instruction definition.
        (fpcmpcc): New code iterator.
        (*sf_fp_insn): New instruction definition.
        (cstore<F:mode>4): New expand definition.
        (cbranch<F:mode>4): New expand definition.
        * config/or1k/or1k.opt (msoft-float, mhard-float, mdouble-float,
        munordered-float): New options.
        * doc/invoke.texi: Document msoft-float, mhard-float, mdouble-float and
        munordered-float.

2019-07-22  Stafford Horne  <shorne@gmail.com>

        * config.gcc (or1k*-*-*): Add mrori and mror to validation.
        * doc/invoke.texi (OpenRISC Options): Add mrori option, rewrite all
        documenation to be more clear.
        * config/or1k/elf.opt (mboard=, mnewlib): Rewrite documentation to be
        more clear.
        * config/or1k/or1k.opt (mrori): New option.
        (mhard-div, msoft-div, mhard-mul, msoft-mul, mcmov, mror, msext,
        msfimm, mshftimm): Rewrite documentation to be more clear.
        * config/or1k/or1k.md (insn_support): Add ror and rori.
        (enabled): Add conditions for ror and rori.
        (rotrsi3): Replace condition for shftimm with ror and rori.

2019-07-22  Stafford Horne  <shorne@gmail.com>

        PR target/90363
        * config/or1k/or1k.md (zero_extend<mode>si2): Update predicate.
        (extend<mode>si2): Update predicate.
        * config/or1k/predicates.md (volatile_mem_operand): New.
        (reg_or_mem_operand): New.

2019-07-21  Iain Sandoe  <iain@sandoe.co.uk>

        * config/rs6000/rs6000.c (TARGET_NO_PROTOTYPE): Move from here...
        * config/rs6000/rs6000-call.c: ... to here.

2019-07-20  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/predicates.md (offsettable_mem_operand): Allow volatile
        memory.

2019-07-20  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/predicates.md (input_operand): Allow volatile memory.

2019-07-20  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/predicates.md (lwa_operand): Allow volatile memory.

2019-07-20  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/predicates.md (volatile_mem_operand): Modernize syntax.
        (any_memory_operand): New predicate.
        (reg_or_mem_operand): Use it.

2019-07-20  Jakub Jelinek  <jakub@redhat.com>

        PR target/91204
        * optabs.c (expand_unop): As fallback, expand ~op0 as op0 ^ -1.

2019-07-20  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/pa.h (hppa_profile_hook): Delete declaration.
        * config/pa/pa-protos.h (hppa_profile_hook): Add declaration.

2019-07-20  Jakub Jelinek  <jakub@redhat.com>

        * tree.def (OMP_LOOP): New tree code.
        * tree-core.h (enum omp_clause_code): Add OMP_CLAUSE_BIND.
        (enum omp_clause_bind_kind): New enum.
        (struct tree_omp_clause): Add subcode.bind_kind.
        * tree.h (OMP_LOOP_CHECK): Rename to ...
        (OMP_LOOPING_CHECK): ... this.
        (OMP_FOR_BODY, OMP_FOR_CLAUSES, OMP_FOR_INIT, OMP_FOR_COND,
        OMP_FOR_INCR, OMP_FOR_PRE_BODY, OMP_FOR_ORIG_DECLS): Use
        OMP_LOOPING_CHECK instead of OMP_LOOP_CHECK.
        (OMP_CLAUSE_BIND_KIND): Define.
        * tree.c (omp_clause_num_ops, omp_clause_code_name): Add
        bind clause entries.
        (walk_tree_1): Handle OMP_CLAUSE_BIND.
        * tree-pretty-print.c (dump_omp_clause): Likewise.
        (dump_generic_node): Handle OMP_LOOP.
        * gimplify.c (enum omp_region_type): Add ORT_IMPLICIT_TARGET.
        (in_omp_construct): New variable.
        (is_gimple_stmt): Handle OMP_LOOP.
        (gimplify_scan_omp_clauses): For lastprivate don't set
        check_non_private if code == OMP_LOOP.  For reduction clause
        on OMP_LOOP combined with parallel or teams propagate as shared
        on the combined construct.  Handle OMP_CLAUSE_BIND.
        (gimplify_adjust_omp_clauses): Handle OMP_CLAUSE_BIND.
        (gimplify_omp_for): Pass OMP_LOOP instead of OMP_{FOR,DISTRIBUTE}
        for constructs from a loop construct to gimplify_scan_omp_clauses.
        Don't predetermine iterator linear on OMP_SIMD from loop construct.
        (replace_reduction_placeholders, gimplify_omp_loop): New functions.
        (gimplify_omp_workshare): Use ORT_IMPLICIT_TARGET instead of trying
        to match the implicit ORT_TARGET construct around whole body.
        Temporarily clear in_omp_construct when processing body.
        (gimplify_expr): Handle OMP_LOOP.  For OMP_MASTER, OMP_TASKGROUP
        etc. temporarily set in_omp_construct when processing body.
        (gimplify_body): Create ORT_IMPLICIT_TARGET instead of ORT_TARGET.
        * omp-low.c (struct omp_context): Add loop_p.
        (build_outer_var_ref): Treat ctx->loop_p similarly to simd construct
        in that the original var might be private.
        (scan_sharing_clauses): Handle OMP_CLAUSE_BIND.
        (check_omp_nesting_restrictions): Adjust nesting restrictions for
        addition of loop construct.
        (scan_omp_1_stmt): Allow setjmp inside of loop construct.

        * omp-low.c (lower_rec_input_clauses): Don't force simd arrays for
        lastprivate non-addressable iterator of a collapse(1) simd.

2019-07-17  Bill Seurer  <seurer@linux.vnet.ibm.com>

        * config/rs6000/rs6000-call.c (HAVE_AS_GNU_ATTRIBUTE): define value
        as in rs6000.c.

2019-07-19  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.h (DRIVER_SELF_SPECS): Ignore X and Mach specs which
        refer to default conditions.  Warn for the 'y' spec which is ignored
        by current linkers.

2019-07-19  Bill Seurer  <seurer@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (builtin_description, cpu_is_info,
        cpu_supports_info, builtin_hash_struct, builtin_hasher,
        builtin_hash_table, rs6000_builtin_info_type, rs6000_builtin_info,
        rs6000_aggregate_candidate, rs6000_discover_homogeneous_aggregate,
        rs6000_return_in_memory, rs6000_return_in_msb, call_ABI_of_interest,
        init_cumulative_args, rs6000_promote_function_mode,
        rs6000_must_pass_in_stack, is_complex_IBM_long_double,
        abi_v4_pass_in_fpr, rs6000_function_arg_padding,
        rs6000_function_arg_boundary, rs6000_parm_offset,
        rs6000_parm_start, rs6000_arg_size,
        rs6000_darwin64_record_arg_advance_flush,
        rs6000_darwin64_record_arg_advance_recurse,
        rs6000_darwin64_struct_check_p, rs6000_function_arg_advance_1,
        rs6000_function_arg_advance, rs6000_darwin64_record_arg_flush,
        rs6000_darwin64_record_arg_recurse, rs6000_darwin64_record_arg,
        rs6000_mixed_function_arg, rs6000_psave_function_arg,
        rs6000_finish_function_arg, rs6000_function_arg,
        rs6000_arg_partial_bytes, rs6000_pass_by_reference,
        rs6000_parm_needs_stack, rs6000_function_parms_need_stack,
        rs6000_reg_parm_stack_space, rs6000_move_block_from_reg,
        setup_incoming_varargs, rs6000_build_builtin_va_list, rs6000_va_start,
        rs6000_gimplify_va_arg, def_builtin, bdesc_3arg, bdesc_dst,
        bdesc_2arg, bdesc_altivec_preds, bdesc_abs, bdesc_1arg, bdesc_0arg,
        bdesc_htm, rs6000_overloaded_builtin_p, rs6000_overloaded_builtin_name,
        rs6000_expand_zeroop_builtin, rs6000_expand_mtfsf_builtin,
        rs6000_expand_mtfsb_builtin, rs6000_expand_set_fpscr_rn_builtin,
        rs6000_expand_set_fpscr_drn_builtin, rs6000_expand_unop_builtin,
        altivec_expand_abs_builtin, rs6000_expand_binop_builtin,
        altivec_expand_predicate_builtin, swap_endian_selector_for_mode,
        altivec_expand_lv_builtin, altivec_expand_stxvl_builtin,
        altivec_expand_stv_builtin, htm_spr_num, rs6000_htm_spr_icode,
        htm_expand_builtin, cpu_expand_builtin, rs6000_expand_ternop_builtin,
        altivec_expand_dst_builtin, altivec_expand_vec_init_builtin,
        get_element_number, altivec_expand_vec_set_builtin,
        altivec_expand_vec_ext_builtin, altivec_expand_builtin,
        rs6000_builtin_is_supported_p, rs6000_invalid_builtin,
        rs6000_fold_builtin, rs6000_builtin_valid_without_lhs,
        fold_build_vec_cmp, fold_compare_helper, fold_mergehl_helper,
        fold_mergeeo_helper, rs6000_gimple_fold_builtin,
        rs6000_expand_builtin, rs6000_vector_type,
        rs6000_init_builtins, rs6000_builtin_decl, altivec_init_builtins,
        htm_init_builtins, builtin_function_type, rs6000_common_init_builtins,
        rs6000_internal_arg_pointer, rs6000_output_mi_thunk): Move
        to rs6000-call.c.
        * config/rs6000/rs6000-call.c (builtin_description, cpu_is_info,
        cpu_supports_info, builtin_hash_struct, builtin_hasher,
        builtin_hash_table, rs6000_builtin_info_type, rs6000_builtin_info,
        rs6000_aggregate_candidate, rs6000_discover_homogeneous_aggregate,
        rs6000_return_in_memory, rs6000_return_in_msb, call_ABI_of_interest,
        init_cumulative_args, rs6000_promote_function_mode,
        rs6000_must_pass_in_stack, is_complex_IBM_long_double,
        abi_v4_pass_in_fpr, rs6000_function_arg_padding,
        rs6000_function_arg_boundary, rs6000_parm_offset,
        rs6000_parm_start, rs6000_arg_size,
        rs6000_darwin64_record_arg_advance_flush,
        rs6000_darwin64_record_arg_advance_recurse,
        rs6000_darwin64_struct_check_p, rs6000_function_arg_advance_1,
        rs6000_function_arg_advance, rs6000_darwin64_record_arg_flush,
        rs6000_darwin64_record_arg_recurse, rs6000_darwin64_record_arg,
        rs6000_mixed_function_arg, rs6000_psave_function_arg,
        rs6000_finish_function_arg, rs6000_function_arg,
        rs6000_arg_partial_bytes, rs6000_pass_by_reference,
        rs6000_parm_needs_stack, rs6000_function_parms_need_stack,
        rs6000_reg_parm_stack_space, rs6000_move_block_from_reg,
        setup_incoming_varargs, rs6000_build_builtin_va_list, rs6000_va_start,
        rs6000_gimplify_va_arg, def_builtin, bdesc_3arg, bdesc_dst,
        bdesc_2arg, bdesc_altivec_preds, bdesc_abs, bdesc_1arg, bdesc_0arg,
        bdesc_htm, rs6000_overloaded_builtin_p, rs6000_overloaded_builtin_name,
        rs6000_expand_zeroop_builtin, rs6000_expand_mtfsf_builtin,
        rs6000_expand_mtfsb_builtin, rs6000_expand_set_fpscr_rn_builtin,
        rs6000_expand_set_fpscr_drn_builtin, rs6000_expand_unop_builtin,
        altivec_expand_abs_builtin, rs6000_expand_binop_builtin,
        altivec_expand_predicate_builtin, swap_endian_selector_for_mode,
        altivec_expand_lv_builtin, altivec_expand_stxvl_builtin,
        altivec_expand_stv_builtin, htm_spr_num, rs6000_htm_spr_icode,
        htm_expand_builtin, cpu_expand_builtin, rs6000_expand_ternop_builtin,
        altivec_expand_dst_builtin, altivec_expand_vec_init_builtin,
        get_element_number, altivec_expand_vec_set_builtin,
        altivec_expand_vec_ext_builtin, altivec_expand_builtin,
        rs6000_builtin_is_supported_p, rs6000_invalid_builtin,
        rs6000_fold_builtin, rs6000_builtin_valid_without_lhs,
        fold_build_vec_cmp, fold_compare_helper, fold_mergehl_helper,
        fold_mergeeo_helper, rs6000_gimple_fold_builtin,
        rs6000_expand_builtin, rs6000_vector_type,
        rs6000_init_builtins, rs6000_builtin_decl, altivec_init_builtins,
        htm_init_builtins, builtin_function_type, rs6000_common_init_builtins,
        rs6000_internal_arg_pointer, rs6000_output_mi_thunk: Move
        to here from rs6000.c.
        * config/rs6000/rs6000-internal.h: (rs6000_darwin64_struct_check_p,
        rs6000_discover_homogeneous_aggregate, rs6000_output_mi_thunk,
        rs6000_output_addr_const_extra, rs6000_gimple_fold_builtin,
        rs6000_invalid_builtin, rs6000_build_builtin_va_list, rs6000_va_start,
        rs6000_gimplify_va_arg, rs6000_promote_function_mode,
        rs6000_return_in_memory, rs6000_return_in_msb,
        rs6000_pass_by_reference, setup_incoming_varargs,
        rs6000_function_arg_boundary, rs6000_must_pass_in_stack,
        rs6000_arg_partial_bytes, rs6000_function_arg_advance,
        rs6000_function_arg_padding, rs6000_function_arg,
        rs6000_darwin64_record_arg, rs6000_internal_arg_pointer,
        rs6000_init_builtins, rs6000_builtin_decl, rs6000_expand_builtin,
        rs6000_fold_builtin, rs6000_passes_ieee128, rs6000_passes_float,
        rs6000_passes_long_double, rs6000_passes_vector,
        rs6000_returns_struct, cpu_builtin_p, tree builtin_mode_to_type,
        altivec_builtin_mask_for_load) Add declarations.
        * config/rs6000/t-rs6000: Add new source file rs6000-call.c.
        * config/config.gcc: Add new source file rs6000-call.c to garbage
        collector and extra_objs.

2019-07-19  Jeff Law  <law@redhat.com>

        PR tree-optimization/86061
        * tree-ssa-dse.c (initialize_ao_ref_for_dse): Handle
        strncpy.  Drop some trivial dead code.
        (maybe_trim_memstar_call): Handle strncpy.

2019-07-19  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91211
        * tree-ssa-sccvn.c (vn_walk_cb_data::push_partial_def): Fix
        memset encoding size.

2019-07-19  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/91204
        * config/i386/mmx.md (one_cmpl<mode>2): New expander.

2019-07-19  Jan Hubicka  <hubicka@ucw.cz>

        PR ipa/91194
        * ipa-inline.c (recursive_inlining): Fix limits check.

2019-07-19  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91200
        * tree-ssa-phiopt.c (cond_store_replacement): Check we have
        no PHI nodes in middle-bb.

2019-07-19  Richard Sandiford  <richard.sandiford@arm.com>

        * doc/invoke.texi: Rename the AArch64 +bitperm extension flag
        to +sve-bitperm.
        * config/aarch64/aarch64-option-extensions.def: Likewise.

2019-07-19  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/91190
        * function.c (insert_temp_slot_address): Store into the hash table
        a copy of address to avoid RTL sharing issues.

2019-07-19  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91207
        Revert
        2019-07-17  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91178
        * tree-vect-stmts.c (get_group_load_store_type): For SLP
        loads with a gap larger than the vector size always use
        VMAT_STRIDED_SLP.
        (vectorizable_load): For VMAT_STRIDED_SLP with a permutation
        avoid loading vectors that are only contained in the gap
        and thus are not needed.

2019-07-18  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*addqi_2_slp): Remove.
        (*<code>qi_2_slp): Ditto.

2019-07-18  Michael Meissner  <meissner@linux.ibm.com>

        * config/rs6000/predicates.md (prefixed_mem_operand): Call
        rs6000_prefixed_address_mode_p instead of rs6000_prefixed_address.
        * config/rs6000/rs6000-protos.h (rs6000_prefixed_address_mode_p):
        Rename function from rs6000_prefixed_address.
        * config/rs6000/aix.h (TARGET_HAS_TOC): Rename TARGET_TOC to
        TARGET_HAS_TOC.
        (TARGET_TOC): Likewise.
        (TARGET_NO_TOC): Delete here, define TARGET_NO_TOC_OR_PCREL in
        rs6000.h.
        * config/rs6000/darwin.h (TARGET_HAS_TOC): Rename TARGET_TOC to
        TARGET_HAS_TOC.
        (TARGET_TOC): Likewise.
        (TARGET_NO_TOC): Delete here, define TARGET_NO_TOC_OR_PCREL in
        rs6000.h.
        * config/rs6000/linux64.h (TARGET_HAS_TOC): Rename TARGET_TOC to
        TARGET_HAS_TOC.
        (TARGET_TOC): Likewise.
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Add
        check to require -mcmodel=medium for pc-relative addressing.
        (create_TOC_reference): Add assertion for TARGET_TOC.
        (rs6000_legitimize_address): Use TARGET_NO_TOC_OR_PCREL instead of
        TARGET_NO_TOC.
        (rs6000_emit_move): Likewise.
        (TOC_alias_set): Rename TOC alias set static variable from 'set'
        to 'TOC_alias_set'.
        (get_TOC_alias_set): Likewise.
        (output_toc): Use TARGET_NO_TOC_OR_PCREL instead of
        TARGET_NO_TOC.
        (rs6000_can_eliminate): Likewise.
        (rs6000_prefixed_address_mode_p): Rename function from
        rs6000_prefixed_address.
        * config/rs6000/rs6000.h (TARGET_TOC): Define in terms of
        TARGET_HAS_TOC and not pc-relative.
        (TARGET_NO_TOC_OR_PCREL): New macro to replace TARGET_NO_TOC.
        * config/rs6000/sysv4.h (TARGET_HAS_TOC): Rename TARGET_TOC to
        TARGET_HAS_TOC.
        (TARGET_TOC): Likewise.
        (TARGET_NO_TOC): Delete here, define TARGET_NO_TOC_OR_PCREL in
        rs6000.h.

2019-07-18  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/91188
        * config/i386/i386.md (*addqi_1_slp): Use register_operand predicate
        for operand 0.  Do not use (match_dup) to match operand 1 with
        operand 0.  Add check in insn constraint that either input operand
        matches operand 0.  Use SWI12 mode iterator to also handle
        HImode operands.
        (*and<mode>_1_slp): Ditto.
        (*<code>qi_1_slp): Ditto.
        (*sub<mode>_1_slp): Use register_operand predicate for operand 0.
        Do not use (match_dup) to match operand 1 with operand 0.  Add
        check in insn constraint that operand 1 matches operand 0.
        Use SWI12 mode iterator to also handle HImode operands.
        (*ashl<mode>3_1_slp): Ditto.
        (*<shift_insn><mode>3_1_slp): Ditto.
        (*<rotate_insn><mode>3_1_slp): Ditto.

2019-07-18  Sylvia Taylor  <sylvia.taylor@arm.com>

        * config/arm/arm-builtins.c
        (arm_expand_ternop_builtin): Remove explicit sha1 builtin handling.
        (arm_expand_unop_builtin): Likewise.
        * config/arm/crypto.md
        (crypto_sha1h): Convert from define_insn to define_expand.
        (crypto_<crypto_pattern>): Likewise.
        (crypto_sha1h_lb): New define_insn.
        (crypto_<crypto_pattern>_lb): Likewise.

2019-07-18  Sylvia Taylor  <sylvia.taylor@arm.com>

        PR target/90317
        * config/arm/arm_neon.h (vsha1h_u32): Refactor.
        (vsha1cq_u32): Likewise.
        (vsha1pq_u32): Likewise.
        (vsha1mq_u32): Likewise.
        * config/arm/crypto.md (crypto_sha1h): Remove zero extend, correct
        vec select.
        (crypto_sha1c): Correct vec select.
        (crypto_sha1m): Likewise.
        (crypto_sha1p): Likewise.

2019-07-18  Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/predicates.md (arm_borrow_operation): New predicate.
        * config/arm/arm.c (subdi3_compare1): Use CCmode for the split.
        (arm_subdi3, subdi_di_zesidi, subdi_di_sesidi): Likewise.
        (subdi_zesidi_zesidi): Likewise.
        (negdi2_compare, negdi2_insn): Likewise.
        (negdi_extensidi): Likewise.
        (negdi_zero_extendsidi): Likewise.
        (arm_cmpdi_insn): Likewise.
        (subsi3_carryin): Use arm_borrow_operation.
        (subsi3_carryin_const): Likewise.
        (subsi3_carryin_const0): Likewise.
        (subsi3_carryin_compare): Likewise.
        (subsi3_carryin_compare_const): Likewise.
        (subsi3_carryin_compare_const0): Likewise.
        (subsi3_carryin_shift): Likewise.
        (rsbsi3_carryin_shift): Likewise.
        (negsi2_carryin_compare): Likewise.

2019-07-18  Bin Cheng  <bin.cheng@linux.alibaba.com>

        PR tree-optimization/91137
        * tree-ssa-loop-ivopts.c (struct ivopts_data): New field.
        (tree_ssa_iv_optimize_init, alloc_iv, tree_ssa_iv_optimize_finalize):
        Init, use and fini the above new field.
        (determine_base_object_1): New function.
        (determine_base_object): Reimplement using walk_tree.

2019-07-18  Richard Sandiford  <richard.sandiford@arm.com>

        * basic-block.h (CLEANUP_FORCE_FAST_DCE): New macro.
        * cfgcleanup.c (cleanup_cfg): Call run_fast_dce if
        CLEANUP_FORCE_FAST_DCE is set.
        * ifcvt.c (rest_of_handle_if_conversion): Pass
        CLEANUP_FORCE_FAST_DCE to the final cleanup_cfg call if
        if-conversion succeeded.

2019-07-18  Richard Biener  <rguenther@suse.de>

        * tree-ssa-sccvn.c (vn_walk_cb_data::push_partial_def): Refactor
        branches to make code less indented.

2019-07-17  Alexandre Oliva  <oliva@adacore.com>

        PR middle-end/81824
        * attribs.c (decls_mismatched_attributes): Simplify the logic
        that avoids duplicates and false positives.

2019-07-17  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/pa.c (pa_som_asm_init_sections): Don't force all constant
        data into data section when generating PIC code.
        (pa_select_section): Use pa_reloc_rw_mask() to qualify relocs.
        (pa_reloc_rw_mask): Return 3 when generating PIC code and when
        generating code for SOM targets earlier than HP-UX 11.  Otherwise,
        return 2 for SOM and 0 for other targets.

2019-07-17  Jeff Law  <law@redhat.com>

        * tree-ssa-dse.c (initialize_ao_ref_for_dse): Fix formatting.
        (dse_walker::dse_optimize_stmt): Likewise.  Add missing return to
        avoid unexpected switch statement fallthru.

2019-07-17  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*add<dwi>3_doubleword):
        Remove redundant constraints.
        (*add<mode>_1): Ditto.
        (*addhi_1): Ditto.
        (*addqi_1): Ditto.
        (*addqi_1_slp): Ditto.
        (*add<mode>_2): Ditto.
        (*addv<mode>4): Ditto.
        (*sub<dwi>3_doubleword): Ditto.
        (*sub<mode>_1): Ditto.
        (*subqi_1_slp): Ditto.
        (*sub<mode>_2): Ditto.
        (*subv<mode>4): Ditto.
        (*sub<mode>_3): Ditto.
        (@add<mode>3_carry): Ditto.
        (@sub<mode>3_carry): Ditto.
        (*add<mode>3_cc_overflow_1): Ditto.
        (*add<mode>3_zext_cc_overflow_2): Ditto.
        (*anddi_1): Ditto.
        (*and<mode>_1): Ditto.
        (*andqi_1): Ditto.
        (*andqi_1_slp): Ditto.
        (*anddi_2): Ditto.
        (*andqi_2_maybe_si): Ditto.
        (*and<mode>_2): Ditto.
        (*andqi_2_slp): Ditto.
        (*<code><mode>_1): Ditto.
        (*<code>qi_1): Ditto.
        (*<code>qi_1_slp): Ditto.
        (*<code><mode>_2): Ditto.
        (*<code>qi_2_slp): Ditto.

2019-07-17  Jan Hubicka  <hubicka@ucw.cz>

        * alias.c (record_component_aliases): Do not simplify pointed-to
        types of ODR types.

2019-07-17  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*andqi_2_maybe_si): Handle potential
        partial reg stall on alternative 2.

2019-07-17  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91178
        * tree-ssa.c (release_defs_bitset): Iterate from higher to
        lower SSA names to avoid quadratic behavior in the common case.
        * tree-data-ref.c (split_constant_offset): Add limit argument
        and pass it down.  Initialize it from PARAM_SSA_NAME_DEF_CHAIN_LIMIT.
        (split_constant_offset_1): Add limit argument and use it to
        limit SSA def walking.  Optimize the common plus/minus case.

2019-07-17  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91178
        * tree-vect-stmts.c (get_group_load_store_type): For SLP
        loads with a gap larger than the vector size always use
        VMAT_STRIDED_SLP.
        (vectorizable_load): For VMAT_STRIDED_SLP with a permutation
        avoid loading vectors that are only contained in the gap
        and thus are not needed.

2019-07-17  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91180
        * tree-ssa-sccvn.c (vn_reference_lookup_3): Fix offset
        computation for memset partial defs.

2019-07-17  Jakub Jelinek  <jakub@redhat.com>

        * gimple.h (enum gf_mask): Remove GF_OMP_FOR_SIMD, change
        GF_OMP_FOR_KIND_SIMD to a value serially after other kinds,
        divide GF_OMP_FOR_KIND_MASK, GF_OMP_FOR_COMBINED,
        GF_OMP_FOR_COMBINED_INTO, GF_OMP_FOR_GRID_PHONY,
        GF_OMP_FOR_GRID_INTRA_GROUP and GF_OMP_FOR_GRID_GROUP_ITER by two.
        * omp-grid.c (grid_process_grid_body,
        grid_eliminate_combined_simd_part): Use GF_OMP_FOR_KIND_SIMD instead
        of GF_OMP_FOR_SIMD, don't test & GF_OMP_FOR_SIMD but
        == GF_OMP_FOR_KIND_SIMD.
        * omp-low.c (build_outer_var_ref, scan_sharing_clauses,
        check_omp_nesting_restrictions, scan_omp_1_stmt,
        lower_rec_input_clauses, lower_lastprivate_conditional_clauses,
        lower_lastprivate_clauses, lower_reduction_clauses, lower_omp_scan,
        omp_find_scan): Likewise.
        * omp-expand.c (expand_omp_for): Likewise.
        * omp-general.c (omp_extract_for_data): Likewise.

        PR tree-optimization/91157
        * tree-vect-generic.c (expand_vector_comparison): Handle lhs being
        a vector boolean with scalar mode.
        (expand_vector_condition): Handle first operand being a vector boolean
        with scalar mode.
        (expand_vector_operations_1): For comparisons, don't bail out early
        if the return type is vector boolean with scalar mode, but comparison
        operand type is not.

2019-07-17  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91181
        * tree-vect-slp.c (vect_build_slp_tree_1): Do not compare
        IFN_LOADs as calls.

2019-07-16  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*testdi_1): Match CCZmode for
        constants that might have the SImode sign bit set.
        (*testqi_1_maybe_si): Remove "!" constraint modifier.
        Use correct constraints for pentium pairing.
        (*test<mode>_1): Ditto.

2019-07-16  Jeff Law  <law@redhat.com>

        PR rtl-optimization/91173
        * tree-ssa-address.c (addr_for_mem_ref): If the base is an
        SSA_NAME with a constant value, fold its value into the offset
        and clear the base before calling gen_addr_rtx.

2019-07-16  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/91164
        * dse.c (rest_of_handle_dse): If dead edges have been purged,
        invalidate dominance info.

2019-07-16  Richard Sandiford  <richard.sandiford@arm.com>

        * read-md.h (md_reader::record_potential_iterator_use): Add a
        file_location parameter.
        * read-rtl.c (attribute_use::loc): New field.
        (map_attr_string): Take a file_location parameter.  Report cases
        in which attributes map to multiple distinct values.
        (apply_attribute_uses): Update call accordingly.
        (md_reader::handle_overloaded_name): Likewise.
        (md_reader::apply_iterator_to_string): Likewise.  Skip empty
        nonnull strings.
        (record_attribute_use): Take a file_location parameter.
        Initialize attribute_use::loc.
        (md_reader::record_potential_iterator_use): Take a file_location
        parameter.  Update call to record_attribute_use.
        (rtx_reader::rtx_alloc_for_name): Update call accordingly.
        (rtx_reader::read_rtx_code): Likewise.
        (rtx_reader::read_rtx_operand): Likewise.  Record a location
        for implicitly-expanded empty strings.

2019-07-16  Richard Sandiford  <richard.sandiford@arm.com>

        * read-md.h (md_reader::ptr_loc): Moved from read-md.c.
        Use file_location instead of separate fields.
        (md_reader::set_md_ptr_loc): Take a file_location instead of a
        separate filename and line number.
        * read-md.c (ptr_loc): As above.
        (md_reader::copy_md_ptr_loc): Update for new ptr_loc layout.
        (md_reader::fprint_md_ptr_loc): Likewise.
        (md_reader::set_md_ptr_loc): Likewise.  Take a file_location
        instead of a separate filename and line number.
        (md_reader::read_string): Update call accordingly.

2019-07-16  Richard Sandiford  <richard.sandiford@arm.com>

        * config/rs6000/rs6000.md (*mov<mode>_update1): Explicitly
        use <SFDF:mode>, <SFDF:MODE>, <SFDF:Ff> and <SFDF:bits> rather than
        leaving the choice between SFDF and P implicit.
        (*mov<mode>_update2): Likewise.
        (*cmp<IBM128:mode>_internal2): Explicitly use <IBM128:MODE>
        rather than leaving the choice betweem IBM128 and GPR implicit.
        (*fix<uns>_trunc<IEEE128:mode><QHSI:mode>2_mem): Explicitly use
        <IEEE128:MODE> rather than leaving the choice between IEEE128 and
        QHSI implicit.
        (AltiVec define_peephole2s): Explicitly use <ALTIVEC_DFORM:MODE>
        rather than leaving the choice between ALTIVEC_DFORM and P implicit.
        * config/rs6000/vsx.md
        (*vsx_ext_<VSX_EXTRACT_I:VS_scalar>_fl_<FL_CONV:mode>)
        (*vsx_ext_<VSX_EXTRACT_I:VS_scalar>_ufl_<FL_CONV:mode>): Explicitly
        use <FL_CONV:VSisa> rather than leaving the choice between FL_CONV
        and VSX_EXTRACT_I implicit.

2019-07-16  Richard Sandiford  <richard.sandiford@arm.com>

        * config/mips/micromips.md (*movep<MOVEP1:mode><MOVEP2:mode>):
        Explicitly use <MOVEP1:MODE> for the mode attribute.

2019-07-16  Jan Hubicka  <hubicka@ucw.cz>

        PR bootstrap/91176
        * ipa-fnsummary.c (analyze_function_body): Skip debug stmts

2019-07-15  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/91050
        * config/rs6000/rs6000.c (rs6000_file_start): Never skip emitting a
        .machine directive.

2019-07-15  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (@test<mode>_ccno_1):
        Rename from test<mode>_ccno_1.
        (*testdi_1): Remove redundant alternatives.  Remove modrm attribute.
        (*testqi_1_maybe_si): Remove modrm attribute.
        (*test<mode>_1): Ditto.
        * config/i386/i386-expand.c (ix86_split_idivmod): Use
        gen_test_ccno_1 and gen_extend_insn.

2019-07-15  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-alias.c (aliasing_component_refs_walk): Initialize same_p
        to 0.

2019-07-15  Richard Biener  <rguenther@suse.de>

        PR middle-end/91162
        * tree-cfg.c (move_block_to_fn): When releasing a virtual PHI
        node make sure to replace all uses with something valid.

2019-07-15  Kewen Lin  <linkw@gcc.gnu.org>

        PR tree-optimization/88497
        * tree-ssa-reassoc.c (reassociate_bb): Swap the positions of
        GIMPLE_BINARY_RHS check and gimple_visited_p check, call new
        function undistribute_bitref_for_vector.
        (undistribute_bitref_for_vector): New function.
        (cleanup_vinfo_map): Likewise.
        (sort_by_mach_mode): Likewise.

2019-07-14  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (nonmemory_szext_operand): New mode attribute.
        (test<mode>_ccno_1): Macroize insn pattern from testsi_ccno_1
        and testdi_ccno_1 using SWI48 mode attribute.
        (*testdi_1): Use x86_64_szext_nonmemory_operand instead of
        x86_64_szext_general_operand.
        (*testqi_1_maybe_si): Use nonmemory_operand instead of general_operand.
        (*test<mode>_1): Use nonmemory_szext_operand mode attribute
        instead of genera_operand mode attribute.

2019-07-14  Vladislav Ivanishin  <vlad@ispras.ru>

        * gdbhooks.py (DumpFn.invoke): Add explicit casts of return values of
        fopen and fclose to their respective types.
        (DotFn.invoke): Ditto.

2019-07-14  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-fnsummary.c (ipa_dump_hints): Do not dump array_index.
        (ipa_fn_summary::~ipa_fn_summary): Do not destroy array_index.
        (ipa_fn_summary_t::duplicate): Do not duplicate array_index.
        (array_index_predicate): Remove.
        (analyze_function_body): Account cost for variable ofsetted array
        indexing.
        (estimate_node_size_and_time): Do not compute array index hint.
        (ipa_merge_fn_summary_after_inlining): Do not merge array index hint.
        (inline_read_section): Do not read array index hint.
        (ipa_fn_summary_write): Do not write array index hint.
        * doc/invoke.texi (ipa-cp-array-index-hint-bonus): Remove.
        * ipa-cp.c (hint_time_bonus): Remove.
        * ipa-fnsummary.h (ipa_hints_vals): Remove array_index.
        (ipa_fnsummary): Remove array_index.
        * ipa-inline.c (want_inline_small_function_p): Do not use
        array_index.
        (edge_badness): Likewise.
        * params.def (PARAM_IPA_CP_ARRAY_INDEX_HINT_BONUS): Remove.

2019-07-14  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/91148
        * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): Remove
        superfluous "builtin function" phrasing.

2019-07-13  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-alias.c (component_ref_to_zero_sized_trailing_array_p):
        Break out from ...
        (aliasing_component_refs_walk): Break out from ...
        (aliasing_component_refs_p): ... here.

2019-07-13  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/91148
        * config/rs6000/rs6000.c (rs6000_invalid_builtin): Remove superfluous
        "builtin function" phrasing.

2019-07-13  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR target/90723
        * recog.h (temporary_volatile_ok): New class.
        * config/aarch64/aarch64.c (aarch64_emit_sve_pred_move): Set
        volatile_ok temporarily to true using temporary_volatile_ok.
        * expr.c (emit_block_move_via_cpymem): Likewise.
        * optabs.c (maybe_legitimize_operand): Likewise.

2019-07-13  Jakub Jelinek  <jakub@redhat.com>

        * gimplify.c (struct gimplify_omp_ctx): Add order_concurrent member.
        (omp_notice_threadprivate_variable): Diagnose threadprivate variable
        uses inside of order(concurrent) constructs.
        (gimplify_scan_omp_clauses): Set ctx->order_concurrent if
        OMP_CLAUSE_ORDER is seen.
        * omp-low.c (struct omp_context): Add order_concurrent member.
        (scan_sharing_clauses): Set ctx->order_concurrent if
        OMP_CLAUSE_ORDER is seen.
        (check_omp_nesting_restrictions): Diagnose ordered or atomic inside
        of simd order(concurrent).  Diagnose constructs not allowed inside of
        for order(concurrent).
        (setjmp_or_longjmp_p): Add a context and TREE_PUBLIC check to avoid
        complaining about static double setjmp (double); or class static
        methods or non-global namespace setjmps.
        (omp_runtime_api_call): New function.
        (scan_omp_1_stmt): Diagnose OpenMP runtime API calls inside of
        order(concurrent) loops.

2019-07-12  Martin Sebor  <msebor@redhat.com>

        * doc/invoke.texi (ssa-name-def-chain-limit): Document new --param.
        * params.def (PARAM_SSA_NAME_DEF_CHAIN_LIMIT): Add new --param.
        * tree-vrp.c (vrp_prop::check_mem_ref): Use
        PARAM_SSA_NAME_DEF_CHAIN_LIMIT.

2019-07-12  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-alias.c (same_tmr_indexing_p): Break out from ...
        (indirect_refs_may_alias_p): ... here.
        (nonoverlapping_component_refs_since_match_p): Support also non-trivial
        mem refs in the access paths.

2019-07-12  Jiangning Liu  <jiangning.liu@amperecomputing.com>

        PR tree-optimization/89430
        * tree-ssa-phiopt.c (cond_store_replacement): Support conditional
        store elimination for local variable without address escape.

2019-07-12  Jeff Law  <law@redhat.com>

        * config/c6x/c6x.c (c6x_section_type): Clear SECTION_NOTYPE
        for the ".far" section.

2019-07-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91145
        * tree-vect-slp.c (vect_build_slp_tree_2): Fix reduction
        chain check.

2019-07-12  Alexandre Oliva  <oliva@adacore.com>

        * tree-eh.c (honor_protect_cleanup_actions): Use outer_
        rather than this_state as the lowering context for the ELSE
        seq in a GIMPLE_EH_ELSE.

2019-07-12  Richard Sandiford  <richard.sandiford@arm.com>

        * vector-builder.h (vector_builder::elt): Allow already-supplied
        elements to be read back before building is complete.

2019-07-12  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/91136
        * df-core.c (ACCESSING REFS): Fix typos in comment.
        * resource.c (mark_target_live_reg): Add artificial defs that occur at
        the beginning of the block to the initial set of live registers.

2019-07-12  Richard Biener  <rguenther@suse.de>

        * fold-const.h (get_array_ctor_element_at_index): Adjust.
        * fold-const.c (get_array_ctor_element_at_index): Add
        ctor_idx output parameter informing the caller where in
        the constructor the element was (not) found.  Add early exit
        for when the ctor is sorted.
        * gimple-fold.c (fold_array_ctor_reference): Support constant
        folding across multiple array elements.

2019-07-12  Eric Botcazou  <ebotcazou@adacore.com>

        * cfgexpand.c (expand_gimple_stmt_1) <GIMPLE_RETURN>: If the statement
        doesn't have location, set the current location to the function's end.

2019-07-12  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64.md (*compare_condjump<mode>)
        (loadwb_pair<GPI:mode>_<P:mode>, loadwb_pair<GPF:mode>_<P:mode>)
        (storewb_pair<GPI:mode>_<P:mode>, storewb_pair<GPF:mode>_<P:mode>)
        (*ands<mode>_compare0): Fix ambiguous uses of .md attributes.
        * config/aarch64/aarch64-simd.md
        (*aarch64_get_lane_extend<GPI:mode><VDQQH:mode>): Likewise.
        (*aarch64_get_lane_zero_extend<GPI:mode><VDQQH:mode>): Likewise.
        * config/aarch64/aarch64-sve.md
        (while_ult<GPI:mode><PRED_ALL:mode>): Likewise.
        (*cond_<optab><mode>_any): Fix SVE_I/SVE_SDI typo.

2019-07-12  Richard Sandiford  <richard.sandiford@arm.com>

        * doc/md.texi: Document that @ patterns can have different
        numbers of operands.
        * genemit.c (handle_overloaded_gen): Handle this case.
        * genopinit.c (handle_overloaded_gen): Likewise.
        * gensupport.c (replace_operands_with_dups): Iterate over
        the new rtx's format rather than the old one's.

2019-07-12  Jakub Jelinek  <jakub@redhat.com>

        * tree-core.h (enum omp_clause_code): Add OMP_CLAUSE_ORDER.
        * tree.c (omp_clause_num_ops, omp_clause_code_name): Add
        order clause entries.
        (walk_tree_1): Handle OMP_CLAUSE_ORDER.
        * tree-pretty-print.c (dump_omp_clause): Likewise.
        * gimplify.c (gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses):
        Likewise.
        * omp-low.c (scan_sharing_clauses): Likewise.
        * tree-nested.c (convert_nonlocal_omp_clauses,
        convert_local_omp_clauses): Likewise.

2019-07-12  Kewen Lin  <linkw@gcc.gnu.org>

        * cfgrtl.c (print_rtl_with_bb): Emit a hint if the
        fallthrough target of current basic block isn't the placed
        right next.

2019-07-11  Sunil K Pandey  <sunil.k.pandey@intel.com>

        PR target/90980
        * config/i386/avx512fintrin.h (_mm512_loadu_epi64): New.
        (_mm512_storeu_epi64): Likewise.
        (_mm512_loadu_epi32): Likewise.
        (_mm512_storeu_epi32): Likewise.
        * config/i386/avx512vlintrin.h (_mm256_storeu_epi64): New.
        (_mm_storeu_epi64): Likewise.
        (_mm256_storeu_epi32): Likewise.
        (_mm_storeu_epi32): Likewise.

2019-07-11  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000-logue.c: Add Modula-2 to comment.

2019-07-11  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000-logue.c (rs6000_output_function_epilogue):
        Handle Modula-2.

2019-07-11  Jakub Jelinek  <jakub@redhat.com>

        PR target/91124
        * config/i386/sse.md (sse2_cvtpd2dq<mask_name>): Change into ...
        (sse2_cvtpd2dq): ... this.  Remove mask substitution macros.
        (sse2_cvtpd2dq_mask, sse2_cvtpd2dq_mask_1): New define_insns.
        (ufix_notruncv2dfv2si2<mask_name>): Change into ...
        (ufix_notruncv2dfv2si2): ... this.  Remove mask substitution macros.
        (ufix_notruncv2dfv2si2_mask, ufix_notruncv2dfv2si2_mask_1): New
        define_insns.
        (ufix_truncv2dfv2si2<mask_name>): Change into ...
        (ufix_truncv2dfv2si2): ... this.  Remove mask substitution macros.
        (ufix_truncv2dfv2si2_mask, ufix_truncv2dfv2si2_mask_1): New
        define_insns.
        (sse2_cvttpd2dq<mask_name>): Change into ...
        (sse2_cvttpd2dq): ... this.  Remove mask substitution macros.
        (sse2_cvttpd2dq_mask, sse2_cvttpd2dq_mask_1): New define_insns.
        (*sse2_cvtpd2dq<mask_name>): Change into ...
        (*sse2_cvtpd2dq): ... this.  Remove mask substitution macros.
        Add "C" constraint to const0_operand.
        (*sse2_cvtpd2dq_mask, *sse2_cvtpd2dq_mask_1): New define_insns.
        (sse2_cvtpd2ps_mask): Adjust expand to match *sse2_cvtpd2ps_mask
        changes.

        PR target/91124
        * config/i386/i386-builtin-types.def
        (V32HI_FTYPE_V32HI_V32HI_V32HI_INT,
        V16HI_FTYPE_V16HI_V16HI_V16HI_INT, V8HI_FTYPE_V8HI_V8HI_V8HI_INT,
        V8SI_FTYPE_V8SI_V8SI_V8SI_INT, V4DI_FTYPE_V4DI_V4DI_V4DI_INT,
        V8DI_FTYPE_V8DI_V8DI_V8DI_INT, V16SI_FTYPE_V16SI_V16SI_V16SI_INT,
        V2DI_FTYPE_V2DI_V2DI_V2DI_INT, V4SI_FTYPE_V4SI_V4SI_V4SI_INT): Remove.
        * config/i386/i386-builtin.def (__builtin_ia32_vpshrdv_v32hi_mask,
        __builtin_ia32_vpshrdv_v32hi_maskz, __builtin_ia32_vpshrdv_v16hi_mask,
        __builtin_ia32_vpshrdv_v16hi_maskz, __builtin_ia32_vpshrdv_v8hi_mask,
        __builtin_ia32_vpshrdv_v8hi_maskz, __builtin_ia32_vpshrdv_v16si_mask,
        __builtin_ia32_vpshrdv_v16si_maskz, __builtin_ia32_vpshrdv_v8si_mask,
        __builtin_ia32_vpshrdv_v8si_maskz, __builtin_ia32_vpshrdv_v4si_mask,
        __builtin_ia32_vpshrdv_v4si_maskz, __builtin_ia32_vpshrdv_v8di_mask,
        __builtin_ia32_vpshrdv_v8di_maskz, __builtin_ia32_vpshrdv_v4di_mask,
        __builtin_ia32_vpshrdv_v4di_maskz, __builtin_ia32_vpshrdv_v2di_mask,
        __builtin_ia32_vpshrdv_v2di_maskz, __builtin_ia32_vpshldv_v32hi_mask,
        __builtin_ia32_vpshldv_v32hi_maskz, __builtin_ia32_vpshldv_v16hi_mask,
        __builtin_ia32_vpshldv_v16hi_maskz, __builtin_ia32_vpshldv_v8hi_mask,
        __builtin_ia32_vpshldv_v8hi_maskz, __builtin_ia32_vpshldv_v16si_mask,
        __builtin_ia32_vpshldv_v16si_maskz, __builtin_ia32_vpshldv_v8si_mask,
        __builtin_ia32_vpshldv_v8si_maskz, __builtin_ia32_vpshldv_v4si_mask,
        __builtin_ia32_vpshldv_v4si_maskz, __builtin_ia32_vpshldv_v8di_mask,
        __builtin_ia32_vpshldv_v8di_maskz, __builtin_ia32_vpshldv_v4di_mask,
        __builtin_ia32_vpshldv_v4di_maskz, __builtin_ia32_vpshldv_v2di_mask,
        __builtin_ia32_vpshldv_v2di_maskz, __builtin_ia32_vpdpbusd_v16si_mask,
        __builtin_ia32_vpdpbusd_v16si_maskz, __builtin_ia32_vpdpbusd_v8si_mask,
        __builtin_ia32_vpdpbusd_v8si_maskz, __builtin_ia32_vpdpbusd_v4si_mask,
        __builtin_ia32_vpdpbusd_v4si_maskz,
        __builtin_ia32_vpdpbusds_v16si_mask,
        __builtin_ia32_vpdpbusds_v16si_maskz,
        __builtin_ia32_vpdpbusds_v8si_mask,
        __builtin_ia32_vpdpbusds_v8si_maskz,
        __builtin_ia32_vpdpbusds_v4si_mask,
        __builtin_ia32_vpdpbusds_v4si_maskz,
        __builtin_ia32_vpdpwssd_v16si_mask,
        __builtin_ia32_vpdpwssd_v16si_maskz, __builtin_ia32_vpdpwssd_v8si_mask,
        __builtin_ia32_vpdpwssd_v8si_maskz, __builtin_ia32_vpdpwssd_v4si_mask,
        __builtin_ia32_vpdpwssd_v4si_maskz,
        __builtin_ia32_vpdpwssds_v16si_mask,
        __builtin_ia32_vpdpwssds_v16si_maskz,
        __builtin_ia32_vpdpwssds_v8si_mask,
        __builtin_ia32_vpdpwssds_v8si_maskz,
        __builtin_ia32_vpdpwssds_v4si_mask,
        __builtin_ia32_vpdpwssds_v4si_maskz): Use *_USI, *_UHI or *_UQI
        suffixed types rather than *_INT.
        * config/i386/i386-expand.c (ix86_expand_args_builtin): Don't handle
        V32HI_FTYPE_V32HI_V32HI_V32HI_INT, V16HI_FTYPE_V16HI_V16HI_V16HI_INT,
        V8HI_FTYPE_V8HI_V8HI_V8HI_INT, V8SI_FTYPE_V8SI_V8SI_V8SI_INT,
        V4DI_FTYPE_V4DI_V4DI_V4DI_INT, V8DI_FTYPE_V8DI_V8DI_V8DI_INT,
        V16SI_FTYPE_V16SI_V16SI_V16SI_INT, V2DI_FTYPE_V2DI_V2DI_V2DI_INT
        and V4SI_FTYPE_V4SI_V4SI_V4SI_INT.

2019-07-11  Aldy Hernandez  <aldyh@redhat.com>

        * tree-vrp.c (intersect_ranges): If we know the intersection is
        empty, there is no need to conservatively add anything else to
        the set.

2019-07-11  Richard Biener  <rguenther@suse.de>

        PR middle-end/91131
        * gimplify.c (gimplify_compound_literal_expr): Force a temporary
        when the object is volatile and we have not cleared it even though
        there are no nonzero elements.

2019-07-10  Michael Meissner  <meissner@linux.ibm.com>

        * config/rs6000/predicates.md (cint34_operand): Update
        SIGNED_34BIT_OFFSET_P call.
        (pcrel_address): Update SIGNED_34BIT_OFFSET_P call.
        (pcrel_external_address): Update SIGNED_34BIT_OFFSET_P call.
        * config/rs6000/rs6000.c (rs6000_prefixed_address): Update
        SIGNED_16BIT_OFFSET_P and SIGNED_34BIT_OFFSET_P calls.
        * config/rs6000/rs6000.h (SIGNED_16BIT_OFFSET_P): Remove EXTRA
        argument.
        (SIGNED_34BIT_OFFSET_P): Remove EXTRA argument.
        (SIGNED_16BIT_OFFSET_EXTRA_P): New macro, like
        SIGNED_16BIT_OFFSET_P with an EXTRA argument.
        (SIGNED_34BIT_OFFSET_EXTRA_P): New macro, like
        SIGNED_34BIT_OFFSET_P with an EXTRA argument.

2019-07-10  Iain Sandoe  <iain@sandoe.co.uk>

        * config/rs6000/darwin.h (LIB_SPEC): Collate this spec here.
        * config/rs6000/darwin7.h (LIB_SPEC): Remove.
        * config/rs6000/darwin8.h (LIB_SPEC): Remove.
        (DEF_MIN_OSX_VERSION): New.

2019-07-10  Richard Sandiford  <richard.sandiford@arm.com>

        * fold-const.c (fold_relational_const): Fix folding of
        vector-to-scalar NE_EXPRs.
        (test_vector_folding): Add more tests.

2019-07-10  Richard Sandiford  <richard.sandiford@arm.com>

        PR target/91060
        * config/arm/iterators.md (V2DI_ONLY): New mode iterator.
        * config/arm/neon.md (vec_set<mode>_internal): Add a '@' prefix.
        (vec_setv2di_internal): Reexpress as...
        (@vec_set<V2DI_ONLY:mode>_internal): ...this.
        * config/arm/arm.c (neon_expand_vector_init): Use gen_vec_set_internal
        rather than gen_neon_vset_lane<mode>.

2019-07-10  Vladimir Makarov  <vmakarov@redhat.com>

        PR target/91102
        * lra-constraints.c (process_alt_operands): Don't match user
        defined regs only if they are early clobbers.

2019-07-10  Marc Glisse  <marc.glisse@inria.fr>

        * wide-int.h (wi::lshift): Reject negative values for the fast path.

2019-07-10  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91126
        * tree-ssa-sccvn.c (n_walk_cb_data::push_partial_def): Adjust
        native encoding offset for BYTES_BIG_ENDIAN.
        (vn_reference_lookup_3): Likewise.

2019-07-10  Richard Biener  <rguenther@suse.de>

        * tree-ssa-sccvn.c (vn_reference_lookup_3): Look at valueized
        LHS whenever possible.

2019-07-09  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-alias.c (nonoverlapping_component_refs_p_1): Break out
        from ...; work also on duplicated types.
        (nonoverlapping_component_refs_since_match): ... here
        (ncr_type_uid): Break out from ...
        (ncr_compar): ... here; look for TYPE_UID of canonical type if
        available.
        (nonoverlapping_component_refs_p): Use same_type_for_tbaa to match
        the types and nonoverlapping_component_refs_p_1 to disambiguate.

2019-07-09  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/90989
        * tree-ssa-strlen.c (handle_char_store): Constrain a single character
        optimization to just single character stores.

2019-07-09  Joern Rennecke  <joern.rennecke@riscy-ip.com>

        * tree-vect-stmts.c (vectorizable_comparison) <!slp_node>:
        Swap operands only once.

2019-07-09  Dragan Mladjenovic  <dmladjenovic@wavecomp.com>

        * cfgcleanup.c (old_insns_match_p): Check if used hard regs set is equal
        for both call instructions.

2019-07-09  John Darrington  <john@darrington.wattle.id.au>

        * simplify-rtx.c (simplify_unary_operation_1): Use GET_MODE_PRECISION
        rather than GET_MODE_BITSIZE to better handle partial integer modes.

2019-07-09  Michael Meissner  <meissner@linux.ibm.com>

        * config/rs6000/rs6000-internal.h (create_TOC_reference): Delete.
        * config/rs6000/rs6000-logue.c (create_TOC_reference): Move
        function from rs6000-logue.c back to rs6000.c.
        * config/rs6000/rs6000.c (create_TOC_reference): Likewise.

2019-07-09  Martin Sebor  <msebor@redhat.com>

        PR c++/61339
        * auto-profile.c: Change class-key of PODs to struct and others
        to class.
        * basic-block.h: Same.
        * bitmap.c (bitmap_alloc): Same.
        * bitmap.h: Same.
        * builtins.c (expand_builtin_prefetch): Same.
        (expand_builtin_interclass_mathfn): Same.
        (expand_builtin_strlen): Same.
        (expand_builtin_mempcpy_args): Same.
        (expand_cmpstr): Same.
        (expand_builtin___clear_cache): Same.
        (expand_ifn_atomic_bit_test_and): Same.
        (expand_builtin_thread_pointer): Same.
        (expand_builtin_set_thread_pointer): Same.
        * caller-save.c (setup_save_areas): Same.
        (replace_reg_with_saved_mem): Same.
        (insert_restore): Same.
        (insert_save): Same.
        (add_used_regs): Same.
        * cfg.c (get_bb_copy): Same.
        (set_loop_copy): Same.
        * cfg.h: Same.
        * cfganal.h: Same.
        * cfgexpand.c (alloc_stack_frame_space): Same.
        (add_stack_var): Same.
        (add_stack_var_conflict): Same.
        (add_scope_conflicts_1): Same.
        (update_alias_info_with_stack_vars): Same.
        (expand_used_vars): Same.
        * cfghooks.c (redirect_edge_and_branch_force): Same.
        (delete_basic_block): Same.
        (split_edge): Same.
        (make_forwarder_block): Same.
        (force_nonfallthru): Same.
        (duplicate_block): Same.
        (lv_flush_pending_stmts): Same.
        * cfghooks.h: Same.
        * cfgloop.c (flow_loops_cfg_dump): Same.
        (flow_loop_nested_p): Same.
        (superloop_at_depth): Same.
        (get_loop_latch_edges): Same.
        (flow_loop_dump): Same.
        (flow_loops_dump): Same.
        (flow_loops_free): Same.
        (flow_loop_nodes_find): Same.
        (establish_preds): Same.
        (flow_loop_tree_node_add): Same.
        (flow_loop_tree_node_remove): Same.
        (flow_loops_find): Same.
        (find_subloop_latch_edge_by_profile): Same.
        (find_subloop_latch_edge_by_ivs): Same.
        (mfb_redirect_edges_in_set): Same.
        (form_subloop): Same.
        (merge_latch_edges): Same.
        (disambiguate_multiple_latches): Same.
        (disambiguate_loops_with_multiple_latches): Same.
        (flow_bb_inside_loop_p): Same.
        (glb_enum_p): Same.
        (get_loop_body_with_size): Same.
        (get_loop_body): Same.
        (fill_sons_in_loop): Same.
        (get_loop_body_in_dom_order): Same.
        (get_loop_body_in_custom_order): Same.
        (release_recorded_exits): Same.
        (get_loop_exit_edges): Same.
        (num_loop_branches): Same.
        (remove_bb_from_loops): Same.
        (find_common_loop): Same.
        (delete_loop): Same.
        (cancel_loop): Same.
        (verify_loop_structure): Same.
        (loop_preheader_edge): Same.
        (loop_exit_edge_p): Same.
        (single_exit): Same.
        (loop_exits_to_bb_p): Same.
        (loop_exits_from_bb_p): Same.
        (get_loop_location): Same.
        (record_niter_bound): Same.
        (get_estimated_loop_iterations_int): Same.
        (max_stmt_executions_int): Same.
        (likely_max_stmt_executions_int): Same.
        (get_estimated_loop_iterations): Same.
        (get_max_loop_iterations): Same.
        (get_max_loop_iterations_int): Same.
        (get_likely_max_loop_iterations): Same.
        * cfgloop.h (simple_loop_desc): Same.
        (get_loop): Same.
        (loop_depth): Same.
        (loop_outer): Same.
        (loop_iterator::next): Same.
        (loop_outermost): Same.
        * cfgloopanal.c (mark_irreducible_loops): Same.
        (num_loop_insns): Same.
        (average_num_loop_insns): Same.
        (expected_loop_iterations_unbounded): Same.
        (expected_loop_iterations): Same.
        (mark_loop_exit_edges): Same.
        (single_likely_exit): Same.
        * cfgloopmanip.c (fix_bb_placement): Same.
        (fix_bb_placements): Same.
        (remove_path): Same.
        (place_new_loop): Same.
        (add_loop): Same.
        (scale_loop_frequencies): Same.
        (scale_loop_profile): Same.
        (create_empty_if_region_on_edge): Same.
        (create_empty_loop_on_edge): Same.
        (loopify): Same.
        (unloop): Same.
        (fix_loop_placements): Same.
        (copy_loop_info): Same.
        (duplicate_loop): Same.
        (duplicate_subloops): Same.
        (loop_redirect_edge): Same.
        (can_duplicate_loop_p): Same.
        (duplicate_loop_to_header_edge): Same.
        (mfb_keep_just): Same.
        (has_preds_from_loop): Same.
        (create_preheader): Same.
        (create_preheaders): Same.
        (lv_adjust_loop_entry_edge): Same.
        (loop_version): Same.
        * cfgloopmanip.h: Same.
        * cgraph.h: Same.
        * cgraphbuild.c: Same.
        * combine.c (make_extraction): Same.
        * config/i386/i386-features.c: Same.
        * config/i386/i386-features.h: Same.
        * config/i386/i386.c (ix86_emit_outlined_ms2sysv_save): Same.
        (ix86_emit_outlined_ms2sysv_restore): Same.
        (ix86_noce_conversion_profitable_p): Same.
        (ix86_init_cost): Same.
        (ix86_simd_clone_usable): Same.
        * configure.ac (ACX_PROG_CXX_WARNING_OPTS): Add -Wclass-is-pod and
        Wstruct-not-pod.
        * coretypes.h: Same.
        * data-streamer-in.c (string_for_index): Change class-key of PODs
        to struct and others to class.
        (streamer_read_indexed_string): Same.
        (streamer_read_string): Same.
        (bp_unpack_indexed_string): Same.
        (bp_unpack_string): Same.
        (streamer_read_uhwi): Same.
        (streamer_read_hwi): Same.
        (streamer_read_gcov_count): Same.
        (streamer_read_wide_int): Same.
        * data-streamer.h (streamer_write_bitpack): Same.
        (bp_unpack_value): Same.
        (streamer_write_char_stream): Same.
        (streamer_write_hwi_in_range): Same.
        (streamer_write_record_start): Same.
        * ddg.c (create_ddg_dep_from_intra_loop_link): Same.
        (add_cross_iteration_register_deps): Same.
        (build_intra_loop_deps): Same.
        * df-core.c (df_analyze): Same.
        (loop_post_order_compute): Same.
        (loop_inverted_post_order_compute): Same.
        * df-problems.c (df_rd_alloc): Same.
        (df_rd_simulate_one_insn): Same.
        (df_rd_local_compute): Same.
        (df_rd_init_solution): Same.
        (df_rd_confluence_n): Same.
        (df_rd_transfer_function): Same.
        (df_rd_free): Same.
        (df_rd_dump_defs_set): Same.
        (df_rd_top_dump): Same.
        (df_lr_alloc): Same.
        (df_lr_reset): Same.
        (df_lr_local_compute): Same.
        (df_lr_init): Same.
        (df_lr_confluence_n): Same.
        (df_lr_free): Same.
        (df_lr_top_dump): Same.
        (df_lr_verify_transfer_functions): Same.
        (df_live_alloc): Same.
        (df_live_reset): Same.
        (df_live_init): Same.
        (df_live_confluence_n): Same.
        (df_live_finalize): Same.
        (df_live_free): Same.
        (df_live_top_dump): Same.
        (df_live_verify_transfer_functions): Same.
        (df_mir_alloc): Same.
        (df_mir_reset): Same.
        (df_mir_init): Same.
        (df_mir_confluence_n): Same.
        (df_mir_free): Same.
        (df_mir_top_dump): Same.
        (df_word_lr_alloc): Same.
        (df_word_lr_reset): Same.
        (df_word_lr_init): Same.
        (df_word_lr_confluence_n): Same.
        (df_word_lr_free): Same.
        (df_word_lr_top_dump): Same.
        (df_md_alloc): Same.
        (df_md_simulate_one_insn): Same.
        (df_md_reset): Same.
        (df_md_init): Same.
        (df_md_free): Same.
        (df_md_top_dump): Same.
        * df-scan.c (df_insn_delete): Same.
        (df_insn_rescan): Same.
        (df_notes_rescan): Same.
        (df_sort_and_compress_mws): Same.
        (df_install_mws): Same.
        (df_refs_add_to_chains): Same.
        (df_ref_create_structure): Same.
        (df_ref_record): Same.
        (df_def_record_1): Same.
        (df_find_hard_reg_defs): Same.
        (df_uses_record): Same.
        (df_get_conditional_uses): Same.
        (df_get_call_refs): Same.
        (df_recompute_luids): Same.
        (df_get_entry_block_def_set): Same.
        (df_entry_block_defs_collect): Same.
        (df_get_exit_block_use_set): Same.
        (df_exit_block_uses_collect): Same.
        (df_mws_verify): Same.
        (df_bb_verify): Same.
        * df.h (df_scan_get_bb_info): Same.
        * doc/tm.texi: Same.
        * dse.c (record_store): Same.
        * dumpfile.h: Same.
        * emit-rtl.c (const_fixed_hasher::equal): Same.
        (set_mem_attributes_minus_bitpos): Same.
        (change_address): Same.
        (adjust_address_1): Same.
        (offset_address): Same.
        * emit-rtl.h: Same.
        * except.c (dw2_build_landing_pads): Same.
        (sjlj_emit_dispatch_table): Same.
        * explow.c (allocate_dynamic_stack_space): Same.
        (emit_stack_probe): Same.
        (probe_stack_range): Same.
        * expmed.c (store_bit_field_using_insv): Same.
        (store_bit_field_1): Same.
        (store_integral_bit_field): Same.
        (extract_bit_field_using_extv): Same.
        (extract_bit_field_1): Same.
        (emit_cstore): Same.
        * expr.c (emit_block_move_via_cpymem): Same.
        (expand_cmpstrn_or_cmpmem): Same.
        (set_storage_via_setmem): Same.
        (emit_single_push_insn_1): Same.
        (expand_assignment): Same.
        (store_constructor): Same.
        (expand_expr_real_2): Same.
        (expand_expr_real_1): Same.
        (try_casesi): Same.
        * flags.h: Same.
        * function.c (try_fit_stack_local): Same.
        (assign_stack_local_1): Same.
        (assign_stack_local): Same.
        (cut_slot_from_list): Same.
        (insert_slot_to_list): Same.
        (max_slot_level): Same.
        (move_slot_to_level): Same.
        (temp_address_hasher::equal): Same.
        (remove_unused_temp_slot_addresses): Same.
        (assign_temp): Same.
        (combine_temp_slots): Same.
        (update_temp_slot_address): Same.
        (preserve_temp_slots): Same.
        * function.h: Same.
        * fwprop.c: Same.
        * gcc-rich-location.h: Same.
        * gcov.c: Same.
        * genattrtab.c (check_attr_test): Same.
        (check_attr_value): Same.
        (convert_set_attr_alternative): Same.
        (convert_set_attr): Same.
        (check_defs): Same.
        (copy_boolean): Same.
        (get_attr_value): Same.
        (expand_delays): Same.
        (make_length_attrs): Same.
        (min_fn): Same.
        (make_alternative_compare): Same.
        (simplify_test_exp): Same.
        (tests_attr_p): Same.
        (get_attr_order): Same.
        (clear_struct_flag): Same.
        (gen_attr): Same.
        (compares_alternatives_p): Same.
        (gen_insn): Same.
        (gen_delay): Same.
        (find_attrs_to_cache): Same.
        (write_test_expr): Same.
        (walk_attr_value): Same.
        (write_attr_get): Same.
        (eliminate_known_true): Same.
        (write_insn_cases): Same.
        (write_attr_case): Same.
        (write_attr_valueq): Same.
        (write_attr_value): Same.
        (write_dummy_eligible_delay): Same.
        (next_comma_elt): Same.
        (find_attr): Same.
        (make_internal_attr): Same.
        (copy_rtx_unchanging): Same.
        (gen_insn_reserv): Same.
        (check_tune_attr): Same.
        (make_automaton_attrs): Same.
        (handle_arg): Same.
        * genextract.c (gen_insn): Same.
        (VEC_char_to_string): Same.
        * genmatch.c (print_operand): Same.
        (lower): Same.
        (parser::parse_operation): Same.
        (parser::parse_capture): Same.
        (parser::parse_c_expr): Same.
        (parser::parse_simplify): Same.
        (main): Same.
        * genoutput.c (output_operand_data): Same.
        (output_get_insn_name): Same.
        (compare_operands): Same.
        (place_operands): Same.
        (process_template): Same.
        (validate_insn_alternatives): Same.
        (validate_insn_operands): Same.
        (gen_expand): Same.
        (note_constraint): Same.
        * genpreds.c (write_one_predicate_function): Same.
        (add_constraint): Same.
        (process_define_register_constraint): Same.
        (write_lookup_constraint_1): Same.
        (write_lookup_constraint_array): Same.
        (write_insn_constraint_len): Same.
        (write_reg_class_for_constraint_1): Same.
        (write_constraint_satisfied_p_array): Same.
        * genrecog.c (optimize_subroutine_group): Same.
        * gensupport.c (process_define_predicate): Same.
        (queue_pattern): Same.
        (remove_from_queue): Same.
        (process_rtx): Same.
        (is_predicable): Same.
        (change_subst_attribute): Same.
        (subst_pattern_match): Same.
        (alter_constraints): Same.
        (alter_attrs_for_insn): Same.
        (shift_output_template): Same.
        (alter_output_for_subst_insn): Same.
        (process_one_cond_exec): Same.
        (subst_dup): Same.
        (process_define_cond_exec): Same.
        (mnemonic_htab_callback): Same.
        (gen_mnemonic_attr): Same.
        (read_md_rtx): Same.
        * ggc-page.c: Same.
        * gimple-loop-interchange.cc (dump_reduction): Same.
        (dump_induction): Same.
        (loop_cand::~loop_cand): Same.
        (free_data_refs_with_aux): Same.
        (tree_loop_interchange::interchange_loops): Same.
        (tree_loop_interchange::map_inductions_to_loop): Same.
        (tree_loop_interchange::move_code_to_inner_loop): Same.
        (compute_access_stride): Same.
        (compute_access_strides): Same.
        (proper_loop_form_for_interchange): Same.
        (tree_loop_interchange_compute_ddrs): Same.
        (prune_datarefs_not_in_loop): Same.
        (prepare_data_references): Same.
        (pass_linterchange::execute): Same.
        * gimple-loop-jam.c (bb_prevents_fusion_p): Same.
        (unroll_jam_possible_p): Same.
        (fuse_loops): Same.
        (adjust_unroll_factor): Same.
        (tree_loop_unroll_and_jam): Same.
        * gimple-loop-versioning.cc (loop_versioning::~loop_versioning): Same.
        (loop_versioning::expensive_stmt_p): Same.
        (loop_versioning::version_for_unity): Same.
        (loop_versioning::dump_inner_likelihood): Same.
        (loop_versioning::find_per_loop_multiplication): Same.
        (loop_versioning::analyze_term_using_scevs): Same.
        (loop_versioning::record_address_fragment): Same.
        (loop_versioning::analyze_expr): Same.
        (loop_versioning::analyze_blocks): Same.
        (loop_versioning::prune_conditions): Same.
        (loop_versioning::merge_loop_info): Same.
        (loop_versioning::add_loop_to_queue): Same.
        (loop_versioning::decide_whether_loop_is_versionable): Same.
        (loop_versioning::make_versioning_decisions): Same.
        (loop_versioning::implement_versioning_decisions): Same.
        * gimple-ssa-evrp-analyze.c
        (evrp_range_analyzer::record_ranges_from_phis): Same.
        * gimple-ssa-store-merging.c (split_store::split_store): Same.
        (count_multiple_uses): Same.
        (split_group): Same.
        (imm_store_chain_info::output_merged_store): Same.
        (pass_store_merging::process_store): Same.
        * gimple-ssa-strength-reduction.c (slsr_process_phi): Same.
        * gimple-ssa-warn-alloca.c (adjusted_warn_limit): Same.
        (is_max): Same.
        (alloca_call_type): Same.
        (pass_walloca::execute): Same.
        * gimple-streamer-in.c (input_phi): Same.
        (input_gimple_stmt): Same.
        * gimple-streamer.h: Same.
        * godump.c (go_force_record_alignment): Same.
        (go_format_type): Same.
        (go_output_type): Same.
        (go_output_fndecl): Same.
        (go_output_typedef): Same.
        (keyword_hash_init): Same.
        (find_dummy_types): Same.
        * graph.c (draw_cfg_nodes_no_loops): Same.
        (draw_cfg_nodes_for_loop): Same.
        * hard-reg-set.h (hard_reg_set_iter_next): Same.
        * hsa-brig.c: Same.
        * hsa-common.h (hsa_internal_fn_hasher::equal): Same.
        * hsa-dump.c (dump_hsa_cfun): Same.
        * hsa-gen.c (gen_function_def_parameters): Same.
        * hsa-regalloc.c (dump_hsa_cfun_regalloc): Same.
        * input.c (dump_line_table_statistics): Same.
        (test_lexer): Same.
        * input.h: Same.
        * internal-fn.c (get_multi_vector_move): Same.
        (expand_load_lanes_optab_fn): Same.
        (expand_GOMP_SIMT_ENTER_ALLOC): Same.
        (expand_GOMP_SIMT_EXIT): Same.
        (expand_GOMP_SIMT_LAST_LANE): Same.
        (expand_GOMP_SIMT_ORDERED_PRED): Same.
        (expand_GOMP_SIMT_VOTE_ANY): Same.
        (expand_GOMP_SIMT_XCHG_BFLY): Same.
        (expand_GOMP_SIMT_XCHG_IDX): Same.
        (expand_addsub_overflow): Same.
        (expand_neg_overflow): Same.
        (expand_mul_overflow): Same.
        (expand_call_mem_ref): Same.
        (expand_mask_load_optab_fn): Same.
        (expand_scatter_store_optab_fn): Same.
        (expand_gather_load_optab_fn): Same.
        * ipa-cp.c (ipa_get_parm_lattices): Same.
        (print_all_lattices): Same.
        (ignore_edge_p): Same.
        (build_toporder_info): Same.
        (free_toporder_info): Same.
        (push_node_to_stack): Same.
        (ipcp_lattice<valtype>::set_contains_variable): Same.
        (set_agg_lats_to_bottom): Same.
        (ipcp_bits_lattice::meet_with): Same.
        (set_single_call_flag): Same.
        (initialize_node_lattices): Same.
        (ipa_get_jf_ancestor_result): Same.
        (ipcp_verify_propagated_values): Same.
        (propagate_scalar_across_jump_function): Same.
        (propagate_context_across_jump_function): Same.
        (propagate_bits_across_jump_function): Same.
        (ipa_vr_operation_and_type_effects): Same.
        (propagate_vr_across_jump_function): Same.
        (set_check_aggs_by_ref): Same.
        (set_chain_of_aglats_contains_variable): Same.
        (merge_aggregate_lattices): Same.
        (agg_pass_through_permissible_p): Same.
        (propagate_aggs_across_jump_function): Same.
        (call_passes_through_thunk_p): Same.
        (propagate_constants_across_call): Same.
        (devirtualization_time_bonus): Same.
        (good_cloning_opportunity_p): Same.
        (context_independent_aggregate_values): Same.
        (gather_context_independent_values): Same.
        (perform_estimation_of_a_value): Same.
        (estimate_local_effects): Same.
        (value_topo_info<valtype>::add_val): Same.
        (add_all_node_vals_to_toposort): Same.
        (value_topo_info<valtype>::propagate_effects): Same.
        (ipcp_propagate_stage): Same.
        (ipcp_discover_new_direct_edges): Same.
        (same_node_or_its_all_contexts_clone_p): Same.
        (cgraph_edge_brings_value_p): Same.
        (gather_edges_for_value): Same.
        (create_specialized_node): Same.
        (find_more_scalar_values_for_callers_subset): Same.
        (find_more_contexts_for_caller_subset): Same.
        (copy_plats_to_inter): Same.
        (intersect_aggregates_with_edge): Same.
        (find_aggregate_values_for_callers_subset): Same.
        (cgraph_edge_brings_all_agg_vals_for_node): Same.
        (decide_about_value): Same.
        (decide_whether_version_node): Same.
        (spread_undeadness): Same.
        (identify_dead_nodes): Same.
        (ipcp_store_vr_results): Same.
        * ipa-devirt.c (final_warning_record::grow_type_warnings): Same.
        * ipa-fnsummary.c (ipa_fn_summary::account_size_time): Same.
        (redirect_to_unreachable): Same.
        (edge_set_predicate): Same.
        (evaluate_conditions_for_known_args): Same.
        (evaluate_properties_for_edge): Same.
        (ipa_fn_summary_t::duplicate): Same.
        (ipa_call_summary_t::duplicate): Same.
        (dump_ipa_call_summary): Same.
        (ipa_dump_fn_summary): Same.
        (eliminated_by_inlining_prob): Same.
        (set_cond_stmt_execution_predicate): Same.
        (set_switch_stmt_execution_predicate): Same.
        (compute_bb_predicates): Same.
        (will_be_nonconstant_expr_predicate): Same.
        (phi_result_unknown_predicate): Same.
        (analyze_function_body): Same.
        (compute_fn_summary): Same.
        (estimate_edge_devirt_benefit): Same.
        (estimate_edge_size_and_time): Same.
        (estimate_calls_size_and_time): Same.
        (estimate_node_size_and_time): Same.
        (remap_edge_change_prob): Same.
        (remap_edge_summaries): Same.
        (ipa_merge_fn_summary_after_inlining): Same.
        (ipa_fn_summary_generate): Same.
        (inline_read_section): Same.
        (ipa_fn_summary_read): Same.
        (ipa_fn_summary_write): Same.
        * ipa-fnsummary.h: Same.
        * ipa-hsa.c (ipa_hsa_read_section): Same.
        * ipa-icf-gimple.c (func_checker::compare_loops): Same.
        * ipa-icf.c (sem_function::param_used_p): Same.
        * ipa-inline-analysis.c (do_estimate_edge_time): Same.
        * ipa-inline.c (edge_badness): Same.
        (inline_small_functions): Same.
        * ipa-polymorphic-call.c
        (ipa_polymorphic_call_context::stream_out): Same.
        * ipa-predicate.c (predicate::remap_after_duplication): Same.
        (predicate::remap_after_inlining): Same.
        (predicate::stream_out): Same.
        * ipa-predicate.h: Same.
        * ipa-profile.c (ipa_profile_read_summary): Same.
        * ipa-prop.c (ipa_get_param_decl_index_1): Same.
        (count_formal_params): Same.
        (ipa_dump_param): Same.
        (ipa_alloc_node_params): Same.
        (ipa_print_node_jump_functions_for_edge): Same.
        (ipa_print_node_jump_functions): Same.
        (ipa_load_from_parm_agg): Same.
        (get_ancestor_addr_info): Same.
        (ipa_compute_jump_functions_for_edge): Same.
        (ipa_analyze_virtual_call_uses): Same.
        (ipa_analyze_stmt_uses): Same.
        (ipa_analyze_params_uses_in_bb): Same.
        (update_jump_functions_after_inlining): Same.
        (try_decrement_rdesc_refcount): Same.
        (ipa_impossible_devirt_target): Same.
        (update_indirect_edges_after_inlining): Same.
        (combine_controlled_uses_counters): Same.
        (ipa_edge_args_sum_t::duplicate): Same.
        (ipa_write_jump_function): Same.
        (ipa_write_indirect_edge_info): Same.
        (ipa_write_node_info): Same.
        (ipa_read_edge_info): Same.
        (ipa_prop_read_section): Same.
        (read_replacements_section): Same.
        * ipa-prop.h (ipa_get_param_count): Same.
        (ipa_get_param): Same.
        (ipa_get_type): Same.
        (ipa_get_param_move_cost): Same.
        (ipa_set_param_used): Same.
        (ipa_get_controlled_uses): Same.
        (ipa_set_controlled_uses): Same.
        (ipa_get_cs_argument_count): Same.
        * ipa-pure-const.c (analyze_function): Same.
        (pure_const_read_summary): Same.
        * ipa-ref.h: Same.
        * ipa-reference.c (ipa_reference_read_optimization_summary): Same.
        * ipa-split.c (test_nonssa_use): Same.
        (dump_split_point): Same.
        (dominated_by_forbidden): Same.
        (split_part_set_ssa_name_p): Same.
        (find_split_points): Same.
        * ira-build.c (finish_loop_tree_nodes): Same.
        (low_pressure_loop_node_p): Same.
        * ira-color.c (ira_reuse_stack_slot): Same.
        * ira-int.h: Same.
        * ira.c (setup_reg_equiv): Same.
        (print_insn_chain): Same.
        (ira): Same.
        * loop-doloop.c (doloop_condition_get): Same.
        (add_test): Same.
        (record_reg_sets): Same.
        (doloop_optimize): Same.
        * loop-init.c (loop_optimizer_init): Same.
        (fix_loop_structure): Same.
        * loop-invariant.c (merge_identical_invariants): Same.
        (compute_always_reached): Same.
        (find_exits): Same.
        (may_assign_reg_p): Same.
        (find_invariants_bb): Same.
        (find_invariants_body): Same.
        (replace_uses): Same.
        (can_move_invariant_reg): Same.
        (free_inv_motion_data): Same.
        (move_single_loop_invariants): Same.
        (change_pressure): Same.
        (mark_ref_regs): Same.
        (calculate_loop_reg_pressure): Same.
        * loop-iv.c (biv_entry_hasher::equal): Same.
        (iv_extend_to_rtx_code): Same.
        (check_iv_ref_table_size): Same.
        (clear_iv_info): Same.
        (latch_dominating_def): Same.
        (iv_get_reaching_def): Same.
        (iv_constant): Same.
        (iv_subreg): Same.
        (iv_extend): Same.
        (iv_neg): Same.
        (iv_add): Same.
        (iv_mult): Same.
        (get_biv_step): Same.
        (record_iv): Same.
        (analyzed_for_bivness_p): Same.
        (record_biv): Same.
        (iv_analyze_biv): Same.
        (iv_analyze_expr): Same.
        (iv_analyze_def): Same.
        (iv_analyze_op): Same.
        (iv_analyze): Same.
        (iv_analyze_result): Same.
        (biv_p): Same.
        (eliminate_implied_conditions): Same.
        (simplify_using_initial_values): Same.
        (shorten_into_mode): Same.
        (canonicalize_iv_subregs): Same.
        (determine_max_iter): Same.
        (check_simple_exit): Same.
        (find_simple_exit): Same.
        (get_simple_loop_desc): Same.
        * loop-unroll.c (report_unroll): Same.
        (decide_unrolling): Same.
        (unroll_loops): Same.
        (loop_exit_at_end_p): Same.
        (decide_unroll_constant_iterations): Same.
        (unroll_loop_constant_iterations): Same.
        (compare_and_jump_seq): Same.
        (unroll_loop_runtime_iterations): Same.
        (decide_unroll_stupid): Same.
        (unroll_loop_stupid): Same.
        (referenced_in_one_insn_in_loop_p): Same.
        (reset_debug_uses_in_loop): Same.
        (analyze_iv_to_split_insn): Same.
        * lra-eliminations.c (lra_debug_elim_table): Same.
        (setup_can_eliminate): Same.
        (form_sum): Same.
        (lra_get_elimination_hard_regno): Same.
        (lra_eliminate_regs_1): Same.
        (eliminate_regs_in_insn): Same.
        (update_reg_eliminate): Same.
        (init_elimination): Same.
        (lra_eliminate): Same.
        * lra-int.h: Same.
        * lra-lives.c (initiate_live_solver): Same.
        * lra-remat.c (create_remat_bb_data): Same.
        * lra-spills.c (lra_spill): Same.
        * lra.c (lra_set_insn_recog_data): Same.
        (lra_set_used_insn_alternative_by_uid): Same.
        (init_reg_info): Same.
        (expand_reg_info): Same.
        * lto-cgraph.c (output_symtab): Same.
        (read_identifier): Same.
        (get_alias_symbol): Same.
        (input_node): Same.
        (input_varpool_node): Same.
        (input_ref): Same.
        (input_edge): Same.
        (input_cgraph_1): Same.
        (input_refs): Same.
        (input_symtab): Same.
        (input_offload_tables): Same.
        (output_cgraph_opt_summary): Same.
        (input_edge_opt_summary): Same.
        (input_cgraph_opt_section): Same.
        * lto-section-in.c (lto_free_raw_section_data): Same.
        (lto_create_simple_input_block): Same.
        (lto_free_function_in_decl_state_for_node): Same.
        * lto-streamer-in.c (lto_tag_check_set): Same.
        (lto_location_cache::revert_location_cache): Same.
        (lto_location_cache::input_location): Same.
        (lto_input_location): Same.
        (stream_input_location_now): Same.
        (lto_input_tree_ref): Same.
        (lto_input_eh_catch_list): Same.
        (input_eh_region): Same.
        (lto_init_eh): Same.
        (make_new_block): Same.
        (input_cfg): Same.
        (fixup_call_stmt_edges): Same.
        (input_struct_function_base): Same.
        (input_function): Same.
        (lto_read_body_or_constructor): Same.
        (lto_read_tree_1): Same.
        (lto_read_tree): Same.
        (lto_input_scc): Same.
        (lto_input_tree_1): Same.
        (lto_input_toplevel_asms): Same.
        (lto_input_mode_table): Same.
        (lto_reader_init): Same.
        (lto_data_in_create): Same.
        * lto-streamer-out.c (output_cfg): Same.
        * lto-streamer.h: Same.
        * modulo-sched.c (duplicate_insns_of_cycles): Same.
        (generate_prolog_epilog): Same.
        (mark_loop_unsched): Same.
        (dump_insn_location): Same.
        (loop_canon_p): Same.
        (sms_schedule): Same.
        * omp-expand.c (expand_omp_for_ordered_loops): Same.
        (expand_omp_for_generic): Same.
        (expand_omp_for_static_nochunk): Same.
        (expand_omp_for_static_chunk): Same.
        (expand_omp_simd): Same.
        (expand_omp_taskloop_for_inner): Same.
        (expand_oacc_for): Same.
        (expand_omp_atomic_pipeline): Same.
        (mark_loops_in_oacc_kernels_region): Same.
        * omp-offload.c (oacc_xform_loop): Same.
        * omp-simd-clone.c (simd_clone_adjust): Same.
        * optabs-query.c (get_traditional_extraction_insn): Same.
        * optabs.c (expand_vector_broadcast): Same.
        (expand_binop_directly): Same.
        (expand_twoval_unop): Same.
        (expand_twoval_binop): Same.
        (expand_unop_direct): Same.
        (emit_indirect_jump): Same.
        (emit_conditional_move): Same.
        (emit_conditional_neg_or_complement): Same.
        (emit_conditional_add): Same.
        (vector_compare_rtx): Same.
        (expand_vec_perm_1): Same.
        (expand_vec_perm_const): Same.
        (expand_vec_cond_expr): Same.
        (expand_vec_series_expr): Same.
        (maybe_emit_atomic_exchange): Same.
        (maybe_emit_sync_lock_test_and_set): Same.
        (expand_atomic_compare_and_swap): Same.
        (expand_atomic_load): Same.
        (expand_atomic_store): Same.
        (maybe_emit_op): Same.
        (valid_multiword_target_p): Same.
        (create_integer_operand): Same.
        (maybe_legitimize_operand_same_code): Same.
        (maybe_legitimize_operand): Same.
        (create_convert_operand_from_type): Same.
        (can_reuse_operands_p): Same.
        (maybe_legitimize_operands): Same.
        (maybe_gen_insn): Same.
        (maybe_expand_insn): Same.
        (maybe_expand_jump_insn): Same.
        (expand_insn): Same.
        * optabs.h (create_expand_operand): Same.
        (create_fixed_operand): Same.
        (create_output_operand): Same.
        (create_input_operand): Same.
        (create_convert_operand_to): Same.
        (create_convert_operand_from): Same.
        * optinfo.h: Same.
        * poly-int.h: Same.
        * predict.c (optimize_insn_for_speed_p): Same.
        (optimize_loop_for_size_p): Same.
        (optimize_loop_for_speed_p): Same.
        (optimize_loop_nest_for_speed_p): Same.
        (get_base_value): Same.
        (predicted_by_loop_heuristics_p): Same.
        (predict_extra_loop_exits): Same.
        (predict_loops): Same.
        (predict_paths_for_bb): Same.
        (predict_paths_leading_to): Same.
        (propagate_freq): Same.
        (pass_profile::execute): Same.
        * predict.h: Same.
        * profile-count.c (profile_count::differs_from_p): Same.
        (profile_probability::differs_lot_from_p): Same.
        * profile-count.h: Same.
        * profile.c (branch_prob): Same.
        * regrename.c (free_chain_data): Same.
        (mark_conflict): Same.
        (create_new_chain): Same.
        (merge_overlapping_regs): Same.
        (init_rename_info): Same.
        (merge_chains): Same.
        (regrename_analyze): Same.
        (regrename_do_replace): Same.
        (scan_rtx_reg): Same.
        (record_out_operands): Same.
        (build_def_use): Same.
        * regrename.h: Same.
        * reload.h: Same.
        * reload1.c (init_reload): Same.
        (maybe_fix_stack_asms): Same.
        (copy_reloads): Same.
        (count_pseudo): Same.
        (count_spilled_pseudo): Same.
        (find_reg): Same.
        (find_reload_regs): Same.
        (select_reload_regs): Same.
        (spill_hard_reg): Same.
        (fixup_eh_region_note): Same.
        (set_reload_reg): Same.
        (allocate_reload_reg): Same.
        (compute_reload_subreg_offset): Same.
        (reload_adjust_reg_for_icode): Same.
        (emit_input_reload_insns): Same.
        (emit_output_reload_insns): Same.
        (do_input_reload): Same.
        (inherit_piecemeal_p): Same.
        * rtl.h: Same.
        * sanopt.c (maybe_get_dominating_check): Same.
        (maybe_optimize_ubsan_ptr_ifn): Same.
        (can_remove_asan_check): Same.
        (maybe_optimize_asan_check_ifn): Same.
        (sanopt_optimize_walker): Same.
        * sched-deps.c (add_dependence_list): Same.
        (chain_to_prev_insn): Same.
        (add_insn_mem_dependence): Same.
        (create_insn_reg_set): Same.
        (maybe_extend_reg_info_p): Same.
        (sched_analyze_reg): Same.
        (sched_analyze_1): Same.
        (get_implicit_reg_pending_clobbers): Same.
        (chain_to_prev_insn_p): Same.
        (deps_analyze_insn): Same.
        (deps_start_bb): Same.
        (sched_free_deps): Same.
        (init_deps): Same.
        (init_deps_reg_last): Same.
        (free_deps): Same.
        * sched-ebb.c: Same.
        * sched-int.h: Same.
        * sched-rgn.c (add_branch_dependences): Same.
        (concat_insn_mem_list): Same.
        (deps_join): Same.
        (sched_rgn_compute_dependencies): Same.
        * sel-sched-ir.c (reset_target_context): Same.
        (copy_deps_context): Same.
        (init_id_from_df): Same.
        (has_dependence_p): Same.
        (change_loops_latches): Same.
        (bb_top_order_comparator): Same.
        (make_region_from_loop_preheader): Same.
        (sel_init_pipelining): Same.
        (get_loop_nest_for_rgn): Same.
        (make_regions_from_the_rest): Same.
        (sel_is_loop_preheader_p): Same.
        * sel-sched-ir.h (inner_loop_header_p): Same.
        (get_all_loop_exits): Same.
        * selftest.h: Same.
        * sese.c (sese_build_liveouts): Same.
        (sese_insert_phis_for_liveouts): Same.
        * sese.h (defined_in_sese_p): Same.
        * sreal.c (sreal::stream_out): Same.
        * sreal.h: Same.
        * streamer-hooks.h: Same.
        * target-globals.c (save_target_globals): Same.
        * target-globals.h: Same.
        * target.def: Same.
        * target.h: Same.
        * targhooks.c (default_has_ifunc_p): Same.
        (default_empty_mask_is_expensive): Same.
        (default_init_cost): Same.
        * targhooks.h: Same.
        * toplev.c: Same.
        * tree-affine.c (aff_combination_mult): Same.
        (aff_combination_expand): Same.
        (aff_combination_constant_multiple_p): Same.
        * tree-affine.h: Same.
        * tree-cfg.c (build_gimple_cfg): Same.
        (replace_loop_annotate_in_block): Same.
        (replace_uses_by): Same.
        (remove_bb): Same.
        (dump_cfg_stats): Same.
        (gimple_duplicate_sese_region): Same.
        (gimple_duplicate_sese_tail): Same.
        (move_block_to_fn): Same.
        (replace_block_vars_by_duplicates): Same.
        (move_sese_region_to_fn): Same.
        (print_loops_bb): Same.
        (print_loop): Same.
        (print_loops): Same.
        (debug): Same.
        (debug_loops): Same.
        * tree-cfg.h: Same.
        * tree-chrec.c (chrec_fold_plus_poly_poly): Same.
        (chrec_fold_multiply_poly_poly): Same.
        (chrec_evaluate): Same.
        (chrec_component_in_loop_num): Same.
        (reset_evolution_in_loop): Same.
        (is_multivariate_chrec): Same.
        (chrec_contains_symbols): Same.
        (nb_vars_in_chrec): Same.
        (chrec_convert_1): Same.
        (chrec_convert_aggressive): Same.
        * tree-chrec.h: Same.
        * tree-core.h: Same.
        * tree-data-ref.c (dump_data_dependence_relation): Same.
        (canonicalize_base_object_address): Same.
        (data_ref_compare_tree): Same.
        (prune_runtime_alias_test_list): Same.
        (get_segment_min_max): Same.
        (create_intersect_range_checks): Same.
        (conflict_fn_no_dependence): Same.
        (object_address_invariant_in_loop_p): Same.
        (analyze_ziv_subscript): Same.
        (analyze_siv_subscript_cst_affine): Same.
        (analyze_miv_subscript): Same.
        (analyze_overlapping_iterations): Same.
        (build_classic_dist_vector_1): Same.
        (add_other_self_distances): Same.
        (same_access_functions): Same.
        (build_classic_dir_vector): Same.
        (subscript_dependence_tester_1): Same.
        (subscript_dependence_tester): Same.
        (access_functions_are_affine_or_constant_p): Same.
        (get_references_in_stmt): Same.
        (loop_nest_has_data_refs): Same.
        (graphite_find_data_references_in_stmt): Same.
        (find_data_references_in_bb): Same.
        (get_base_for_alignment): Same.
        (find_loop_nest_1): Same.
        (find_loop_nest): Same.
        * tree-data-ref.h (dr_alignment): Same.
        (ddr_dependence_level): Same.
        * tree-if-conv.c (fold_build_cond_expr): Same.
        (add_to_predicate_list): Same.
        (add_to_dst_predicate_list): Same.
        (phi_convertible_by_degenerating_args): Same.
        (idx_within_array_bound): Same.
        (all_preds_critical_p): Same.
        (pred_blocks_visited_p): Same.
        (predicate_bbs): Same.
        (build_region): Same.
        (if_convertible_loop_p_1): Same.
        (is_cond_scalar_reduction): Same.
        (predicate_scalar_phi): Same.
        (remove_conditions_and_labels): Same.
        (combine_blocks): Same.
        (version_loop_for_if_conversion): Same.
        (versionable_outer_loop_p): Same.
        (ifcvt_local_dce): Same.
        (tree_if_conversion): Same.
        (pass_if_conversion::gate): Same.
        * tree-if-conv.h: Same.
        * tree-inline.c (maybe_move_debug_stmts_to_successors): Same.
        * tree-loop-distribution.c (bb_top_order_cmp): Same.
        (free_rdg): Same.
        (stmt_has_scalar_dependences_outside_loop): Same.
        (copy_loop_before): Same.
        (create_bb_after_loop): Same.
        (const_with_all_bytes_same): Same.
        (generate_memset_builtin): Same.
        (generate_memcpy_builtin): Same.
        (destroy_loop): Same.
        (build_rdg_partition_for_vertex): Same.
        (compute_access_range): Same.
        (data_ref_segment_size): Same.
        (latch_dominated_by_data_ref): Same.
        (compute_alias_check_pairs): Same.
        (fuse_memset_builtins): Same.
        (finalize_partitions): Same.
        (find_seed_stmts_for_distribution): Same.
        (prepare_perfect_loop_nest): Same.
        * tree-parloops.c (lambda_transform_legal_p): Same.
        (loop_parallel_p): Same.
        (reduc_stmt_res): Same.
        (add_field_for_name): Same.
        (create_call_for_reduction_1): Same.
        (replace_uses_in_bb_by): Same.
        (transform_to_exit_first_loop_alt): Same.
        (try_transform_to_exit_first_loop_alt): Same.
        (transform_to_exit_first_loop): Same.
        (num_phis): Same.
        (gen_parallel_loop): Same.
        (gather_scalar_reductions): Same.
        (get_omp_data_i_param): Same.
        (try_create_reduction_list): Same.
        (oacc_entry_exit_single_gang): Same.
        (parallelize_loops): Same.
        * tree-pass.h: Same.
        * tree-predcom.c (determine_offset): Same.
        (last_always_executed_block): Same.
        (split_data_refs_to_components): Same.
        (suitable_component_p): Same.
        (valid_initializer_p): Same.
        (find_looparound_phi): Same.
        (insert_looparound_copy): Same.
        (add_looparound_copies): Same.
        (determine_roots_comp): Same.
        (predcom_tmp_var): Same.
        (initialize_root_vars): Same.
        (initialize_root_vars_store_elim_1): Same.
        (initialize_root_vars_store_elim_2): Same.
        (finalize_eliminated_stores): Same.
        (initialize_root_vars_lm): Same.
        (remove_stmt): Same.
        (determine_unroll_factor): Same.
        (execute_pred_commoning_cbck): Same.
        (base_names_in_chain_on): Same.
        (combine_chains): Same.
        (pcom_stmt_dominates_stmt_p): Same.
        (try_combine_chains): Same.
        (prepare_initializers_chain_store_elim): Same.
        (prepare_initializers_chain): Same.
        (prepare_initializers): Same.
        (prepare_finalizers_chain): Same.
        (prepare_finalizers): Same.
        (insert_init_seqs): Same.
        * tree-scalar-evolution.c (loop_phi_node_p): Same.
        (compute_overall_effect_of_inner_loop): Same.
        (add_to_evolution_1): Same.
        (add_to_evolution): Same.
        (follow_ssa_edge_binary): Same.
        (follow_ssa_edge_expr): Same.
        (backedge_phi_arg_p): Same.
        (follow_ssa_edge_in_condition_phi_branch): Same.
        (follow_ssa_edge_in_condition_phi): Same.
        (follow_ssa_edge_inner_loop_phi): Same.
        (follow_ssa_edge): Same.
        (analyze_evolution_in_loop): Same.
        (analyze_initial_condition): Same.
        (interpret_loop_phi): Same.
        (interpret_condition_phi): Same.
        (interpret_rhs_expr): Same.
        (interpret_expr): Same.
        (interpret_gimple_assign): Same.
        (analyze_scalar_evolution_1): Same.
        (analyze_scalar_evolution): Same.
        (analyze_scalar_evolution_for_address_of): Same.
        (get_instantiated_value_entry): Same.
        (loop_closed_phi_def): Same.
        (instantiate_scev_name): Same.
        (instantiate_scev_poly): Same.
        (instantiate_scev_binary): Same.
        (instantiate_scev_convert): Same.
        (instantiate_scev_not): Same.
        (instantiate_scev_r): Same.
        (instantiate_scev): Same.
        (resolve_mixers): Same.
        (initialize_scalar_evolutions_analyzer): Same.
        (scev_reset_htab): Same.
        (scev_reset): Same.
        (derive_simple_iv_with_niters): Same.
        (simple_iv_with_niters): Same.
        (expression_expensive_p): Same.
        (final_value_replacement_loop): Same.
        * tree-scalar-evolution.h (block_before_loop): Same.
        * tree-ssa-address.h: Same.
        * tree-ssa-dce.c (find_obviously_necessary_stmts): Same.
        * tree-ssa-dom.c (edge_info::record_simple_equiv): Same.
        (record_edge_info): Same.
        * tree-ssa-live.c (var_map_base_fini): Same.
        (remove_unused_locals): Same.
        * tree-ssa-live.h: Same.
        * tree-ssa-loop-ch.c (should_duplicate_loop_header_p): Same.
        (pass_ch_vect::execute): Same.
        (pass_ch::process_loop_p): Same.
        * tree-ssa-loop-im.c (mem_ref_hasher::hash): Same.
        (movement_possibility): Same.
        (outermost_invariant_loop): Same.
        (stmt_cost): Same.
        (determine_max_movement): Same.
        (invariantness_dom_walker::before_dom_children): Same.
        (move_computations): Same.
        (may_move_till): Same.
        (force_move_till_op): Same.
        (force_move_till): Same.
        (memref_free): Same.
        (record_mem_ref_loc): Same.
        (set_ref_stored_in_loop): Same.
        (mark_ref_stored): Same.
        (sort_bbs_in_loop_postorder_cmp): Same.
        (sort_locs_in_loop_postorder_cmp): Same.
        (analyze_memory_references): Same.
        (mem_refs_may_alias_p): Same.
        (find_ref_loc_in_loop_cmp): Same.
        (rewrite_mem_ref_loc::operator): Same.
        (first_mem_ref_loc_1::operator): Same.
        (sm_set_flag_if_changed::operator): Same.
        (execute_sm_if_changed_flag_set): Same.
        (execute_sm): Same.
        (hoist_memory_references): Same.
        (ref_always_accessed::operator): Same.
        (refs_independent_p): Same.
        (record_dep_loop): Same.
        (ref_indep_loop_p_1): Same.
        (ref_indep_loop_p): Same.
        (can_sm_ref_p): Same.
        (find_refs_for_sm): Same.
        (loop_suitable_for_sm): Same.
        (store_motion_loop): Same.
        (store_motion): Same.
        (fill_always_executed_in): Same.
        * tree-ssa-loop-ivcanon.c (constant_after_peeling): Same.
        (estimated_unrolled_size): Same.
        (loop_edge_to_cancel): Same.
        (remove_exits_and_undefined_stmts): Same.
        (remove_redundant_iv_tests): Same.
        (unloop_loops): Same.
        (estimated_peeled_sequence_size): Same.
        (try_peel_loop): Same.
        (canonicalize_loop_induction_variables): Same.
        (canonicalize_induction_variables): Same.
        * tree-ssa-loop-ivopts.c (iv_inv_expr_hasher::equal): Same.
        (name_info): Same.
        (stmt_after_inc_pos): Same.
        (contains_abnormal_ssa_name_p): Same.
        (niter_for_exit): Same.
        (find_bivs): Same.
        (mark_bivs): Same.
        (find_givs_in_bb): Same.
        (find_induction_variables): Same.
        (find_interesting_uses_cond): Same.
        (outermost_invariant_loop_for_expr): Same.
        (idx_find_step): Same.
        (add_candidate_1): Same.
        (add_iv_candidate_derived_from_uses): Same.
        (alloc_use_cost_map): Same.
        (prepare_decl_rtl): Same.
        (generic_predict_doloop_p): Same.
        (computation_cost): Same.
        (determine_common_wider_type): Same.
        (get_computation_aff_1): Same.
        (get_use_type): Same.
        (determine_group_iv_cost_address): Same.
        (iv_period): Same.
        (difference_cannot_overflow_p): Same.
        (may_eliminate_iv): Same.
        (determine_set_costs): Same.
        (cheaper_cost_pair): Same.
        (compare_cost_pair): Same.
        (iv_ca_cand_for_group): Same.
        (iv_ca_recount_cost): Same.
        (iv_ca_set_remove_invs): Same.
        (iv_ca_set_no_cp): Same.
        (iv_ca_set_add_invs): Same.
        (iv_ca_set_cp): Same.
        (iv_ca_add_group): Same.
        (iv_ca_cost): Same.
        (iv_ca_compare_deps): Same.
        (iv_ca_delta_reverse): Same.
        (iv_ca_delta_commit): Same.
        (iv_ca_cand_used_p): Same.
        (iv_ca_delta_free): Same.
        (iv_ca_new): Same.
        (iv_ca_free): Same.
        (iv_ca_dump): Same.
        (iv_ca_extend): Same.
        (iv_ca_narrow): Same.
        (iv_ca_prune): Same.
        (cheaper_cost_with_cand): Same.
        (iv_ca_replace): Same.
        (try_add_cand_for): Same.
        (get_initial_solution): Same.
        (try_improve_iv_set): Same.
        (find_optimal_iv_set_1): Same.
        (create_new_iv): Same.
        (rewrite_use_compare): Same.
        (remove_unused_ivs): Same.
        (determine_scaling_factor): Same.
        * tree-ssa-loop-ivopts.h: Same.
        * tree-ssa-loop-manip.c (create_iv): Same.
        (compute_live_loop_exits): Same.
        (add_exit_phi): Same.
        (add_exit_phis): Same.
        (find_uses_to_rename_use): Same.
        (find_uses_to_rename_def): Same.
        (find_uses_to_rename_in_loop): Same.
        (rewrite_into_loop_closed_ssa): Same.
        (check_loop_closed_ssa_bb): Same.
        (split_loop_exit_edge): Same.
        (ip_end_pos): Same.
        (ip_normal_pos): Same.
        (copy_phi_node_args): Same.
        (gimple_duplicate_loop_to_header_edge): Same.
        (can_unroll_loop_p): Same.
        (determine_exit_conditions): Same.
        (scale_dominated_blocks_in_loop): Same.
        (niter_for_unrolled_loop): Same.
        (tree_transform_and_unroll_loop): Same.
        (rewrite_all_phi_nodes_with_iv): Same.
        * tree-ssa-loop-manip.h: Same.
        * tree-ssa-loop-niter.c (number_of_iterations_ne_max): Same.
        (number_of_iterations_ne): Same.
        (assert_no_overflow_lt): Same.
        (assert_loop_rolls_lt): Same.
        (number_of_iterations_lt): Same.
        (adjust_cond_for_loop_until_wrap): Same.
        (tree_simplify_using_condition): Same.
        (simplify_using_initial_conditions): Same.
        (simplify_using_outer_evolutions): Same.
        (loop_only_exit_p): Same.
        (ssa_defined_by_minus_one_stmt_p): Same.
        (number_of_iterations_popcount): Same.
        (number_of_iterations_exit): Same.
        (find_loop_niter): Same.
        (finite_loop_p): Same.
        (chain_of_csts_start): Same.
        (get_val_for): Same.
        (loop_niter_by_eval): Same.
        (derive_constant_upper_bound_ops): Same.
        (do_warn_aggressive_loop_optimizations): Same.
        (record_estimate): Same.
        (get_cst_init_from_scev): Same.
        (record_nonwrapping_iv): Same.
        (idx_infer_loop_bounds): Same.
        (infer_loop_bounds_from_ref): Same.
        (infer_loop_bounds_from_array): Same.
        (infer_loop_bounds_from_pointer_arith): Same.
        (infer_loop_bounds_from_signedness): Same.
        (bound_index): Same.
        (discover_iteration_bound_by_body_walk): Same.
        (maybe_lower_iteration_bound): Same.
        (estimate_numbers_of_iterations): Same.
        (estimated_loop_iterations): Same.
        (estimated_loop_iterations_int): Same.
        (max_loop_iterations): Same.
        (max_loop_iterations_int): Same.
        (likely_max_loop_iterations): Same.
        (likely_max_loop_iterations_int): Same.
        (estimated_stmt_executions_int): Same.
        (max_stmt_executions): Same.
        (likely_max_stmt_executions): Same.
        (estimated_stmt_executions): Same.
        (stmt_dominates_stmt_p): Same.
        (nowrap_type_p): Same.
        (loop_exits_before_overflow): Same.
        (scev_var_range_cant_overflow): Same.
        (scev_probably_wraps_p): Same.
        (free_numbers_of_iterations_estimates): Same.
        * tree-ssa-loop-niter.h: Same.
        * tree-ssa-loop-prefetch.c (release_mem_refs): Same.
        (idx_analyze_ref): Same.
        (analyze_ref): Same.
        (gather_memory_references_ref): Same.
        (mark_nontemporal_store): Same.
        (emit_mfence_after_loop): Same.
        (may_use_storent_in_loop_p): Same.
        (mark_nontemporal_stores): Same.
        (should_unroll_loop_p): Same.
        (volume_of_dist_vector): Same.
        (add_subscript_strides): Same.
        (self_reuse_distance): Same.
        (insn_to_prefetch_ratio_too_small_p): Same.
        * tree-ssa-loop-split.c (split_at_bb_p): Same.
        (patch_loop_exit): Same.
        (find_or_create_guard_phi): Same.
        (easy_exit_values): Same.
        (connect_loop_phis): Same.
        (connect_loops): Same.
        (compute_new_first_bound): Same.
        (split_loop): Same.
        (tree_ssa_split_loops): Same.
        * tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops): Same.
        (is_maybe_undefined): Same.
        (tree_may_unswitch_on): Same.
        (simplify_using_entry_checks): Same.
        (tree_unswitch_single_loop): Same.
        (tree_unswitch_loop): Same.
        (tree_unswitch_outer_loop): Same.
        (empty_bb_without_guard_p): Same.
        (used_outside_loop_p): Same.
        (get_vop_from_header): Same.
        (hoist_guard): Same.
        * tree-ssa-loop.c (gate_oacc_kernels): Same.
        (get_lsm_tmp_name): Same.
        * tree-ssa-loop.h: Same.
        * tree-ssa-reassoc.c (add_repeat_to_ops_vec): Same.
        (build_and_add_sum): Same.
        (no_side_effect_bb): Same.
        (get_ops): Same.
        (linearize_expr): Same.
        (should_break_up_subtract): Same.
        (linearize_expr_tree): Same.
        * tree-ssa-scopedtables.c: Same.
        * tree-ssa-scopedtables.h: Same.
        * tree-ssa-structalias.c (condense_visit): Same.
        (label_visit): Same.
        (dump_pred_graph): Same.
        (perform_var_substitution): Same.
        (move_complex_constraints): Same.
        (remove_preds_and_fake_succs): Same.
        * tree-ssa-threadupdate.c (dbds_continue_enumeration_p): Same.
        (determine_bb_domination_status): Same.
        (duplicate_thread_path): Same.
        (thread_through_all_blocks): Same.
        * tree-ssa-threadupdate.h: Same.
        * tree-streamer-in.c (streamer_read_string_cst): Same.
        (input_identifier): Same.
        (unpack_ts_type_common_value_fields): Same.
        (unpack_ts_block_value_fields): Same.
        (unpack_ts_translation_unit_decl_value_fields): Same.
        (unpack_ts_omp_clause_value_fields): Same.
        (streamer_read_tree_bitfields): Same.
        (streamer_alloc_tree): Same.
        (lto_input_ts_common_tree_pointers): Same.
        (lto_input_ts_vector_tree_pointers): Same.
        (lto_input_ts_poly_tree_pointers): Same.
        (lto_input_ts_complex_tree_pointers): Same.
        (lto_input_ts_decl_minimal_tree_pointers): Same.
        (lto_input_ts_decl_common_tree_pointers): Same.
        (lto_input_ts_decl_non_common_tree_pointers): Same.
        (lto_input_ts_decl_with_vis_tree_pointers): Same.
        (lto_input_ts_field_decl_tree_pointers): Same.
        (lto_input_ts_function_decl_tree_pointers): Same.
        (lto_input_ts_type_common_tree_pointers): Same.
        (lto_input_ts_type_non_common_tree_pointers): Same.
        (lto_input_ts_list_tree_pointers): Same.
        (lto_input_ts_vec_tree_pointers): Same.
        (lto_input_ts_exp_tree_pointers): Same.
        (lto_input_ts_block_tree_pointers): Same.
        (lto_input_ts_binfo_tree_pointers): Same.
        (lto_input_ts_constructor_tree_pointers): Same.
        (lto_input_ts_omp_clause_tree_pointers): Same.
        (streamer_read_tree_body): Same.
        * tree-streamer.h: Same.
        * tree-switch-conversion.c (bit_test_cluster::is_beneficial): Same.
        * tree-vect-data-refs.c (vect_get_smallest_scalar_type): Same.
        (vect_analyze_possibly_independent_ddr): Same.
        (vect_analyze_data_ref_dependence): Same.
        (vect_compute_data_ref_alignment): Same.
        (vect_enhance_data_refs_alignment): Same.
        (vect_analyze_data_ref_access): Same.
        (vect_check_gather_scatter): Same.
        (vect_find_stmt_data_reference): Same.
        (vect_create_addr_base_for_vector_ref): Same.
        (vect_setup_realignment): Same.
        (vect_supportable_dr_alignment): Same.
        * tree-vect-loop-manip.c (rename_variables_in_bb): Same.
        (adjust_phi_and_debug_stmts): Same.
        (vect_set_loop_mask): Same.
        (add_preheader_seq): Same.
        (vect_maybe_permute_loop_masks): Same.
        (vect_set_loop_masks_directly): Same.
        (vect_set_loop_condition_masked): Same.
        (vect_set_loop_condition_unmasked): Same.
        (slpeel_duplicate_current_defs_from_edges): Same.
        (slpeel_add_loop_guard): Same.
        (slpeel_can_duplicate_loop_p): Same.
        (create_lcssa_for_virtual_phi): Same.
        (iv_phi_p): Same.
        (vect_update_ivs_after_vectorizer): Same.
        (vect_gen_vector_loop_niters_mult_vf): Same.
        (slpeel_update_phi_nodes_for_loops): Same.
        (slpeel_update_phi_nodes_for_guard1): Same.
        (find_guard_arg): Same.
        (slpeel_update_phi_nodes_for_guard2): Same.
        (slpeel_update_phi_nodes_for_lcssa): Same.
        (vect_do_peeling): Same.
        (vect_create_cond_for_alias_checks): Same.
        (vect_loop_versioning): Same.
        * tree-vect-loop.c (vect_determine_vf_for_stmt): Same.
        (vect_inner_phi_in_double_reduction_p): Same.
        (vect_analyze_scalar_cycles_1): Same.
        (vect_fixup_scalar_cycles_with_patterns): Same.
        (vect_get_loop_niters): Same.
        (bb_in_loop_p): Same.
        (vect_get_max_nscalars_per_iter): Same.
        (vect_verify_full_masking): Same.
        (vect_compute_single_scalar_iteration_cost): Same.
        (vect_analyze_loop_form_1): Same.
        (vect_analyze_loop_form): Same.
        (vect_active_double_reduction_p): Same.
        (vect_analyze_loop_operations): Same.
        (neutral_op_for_slp_reduction): Same.
        (vect_is_simple_reduction): Same.
        (vect_model_reduction_cost): Same.
        (get_initial_def_for_reduction): Same.
        (get_initial_defs_for_reduction): Same.
        (vect_create_epilog_for_reduction): Same.
        (vectorize_fold_left_reduction): Same.
        (vectorizable_reduction): Same.
        (vectorizable_induction): Same.
        (vectorizable_live_operation): Same.
        (loop_niters_no_overflow): Same.
        (vect_get_loop_mask): Same.
        (vect_transform_loop_stmt): Same.
        (vect_transform_loop): Same.
        * tree-vect-patterns.c (vect_reassociating_reduction_p): Same.
        (vect_determine_precisions): Same.
        (vect_pattern_recog_1): Same.
        * tree-vect-slp.c (vect_analyze_slp_instance): Same.
        * tree-vect-stmts.c (stmt_vectype): Same.
        (process_use): Same.
        (vect_init_vector_1): Same.
        (vect_truncate_gather_scatter_offset): Same.
        (get_group_load_store_type): Same.
        (vect_build_gather_load_calls): Same.
        (vect_get_strided_load_store_ops): Same.
        (vectorizable_simd_clone_call): Same.
        (vectorizable_store): Same.
        (permute_vec_elements): Same.
        (vectorizable_load): Same.
        (vect_transform_stmt): Same.
        (supportable_widening_operation): Same.
        * tree-vectorizer.c (vec_info::replace_stmt): Same.
        (vec_info::free_stmt_vec_info): Same.
        (vect_free_loop_info_assumptions): Same.
        (vect_loop_vectorized_call): Same.
        (set_uid_loop_bbs): Same.
        (vectorize_loops): Same.
        * tree-vectorizer.h (STMT_VINFO_BB_VINFO): Same.
        * tree.c (add_tree_to_fld_list): Same.
        (fld_type_variant_equal_p): Same.
        (fld_decl_context): Same.
        (fld_incomplete_type_of): Same.
        (free_lang_data_in_binfo): Same.
        (need_assembler_name_p): Same.
        (find_decls_types_r): Same.
        (get_eh_types_for_runtime): Same.
        (find_decls_types_in_eh_region): Same.
        (find_decls_types_in_node): Same.
        (assign_assembler_name_if_needed): Same.
        * value-prof.c (stream_out_histogram_value): Same.
        * value-prof.h: Same.
        * var-tracking.c (use_narrower_mode): Same.
        (prepare_call_arguments): Same.
        (vt_expand_loc_callback): Same.
        (resolve_expansions_pending_recursion): Same.
        (vt_expand_loc): Same.
        * varasm.c (const_hash_1): Same.
        (compare_constant): Same.
        (tree_output_constant_def): Same.
        (simplify_subtraction): Same.
        (get_pool_constant): Same.
        (output_constant_pool_2): Same.
        (output_constant_pool_1): Same.
        (mark_constants_in_pattern): Same.
        (mark_constant_pool): Same.
        (get_section_anchor): Same.
        * vr-values.c (compare_range_with_value): Same.
        (vr_values::extract_range_from_phi_node): Same.
        * vr-values.h: Same.
        * web.c (unionfind_union): Same.
        * wide-int.h: Same.

2019-07-09  Martin Sebor  <msebor@redhat.com>

        PR c++/61339
        * align.h: Change class-key from class to struct and vice versa
        to match convention and avoid -Wclass-is-pod and -Wstruct-no-pod.
        * alloc-pool.h: Same.
        * asan.c (shadow_mem_size): Same.
        * auto-profile.c: Same.
        * basic-block.h: Same.
        * bitmap.h: Same.
        * cfgexpand.c (set_rtl): Same.
        (expand_one_stack_var_at): Same.
        * cfghooks.h: Same.
        * cfgloop.h: Same.
        * cgraph.h: Same.
        * config/i386/i386.h: Same.
        * df-problems.c (df_print_bb_index): Same.
        * df-scan.c: Same.
        * df.h (df_single_use): Same.
        * diagnostic-show-locus.c (layout::print_annotation_line): Same.
        (layout::annotation_line_showed_range_p): Same.
        (get_printed_columns): Same.
        (correction::ensure_terminated): Same.
        (line_corrections::~line_corrections): Same.
        * dojump.h: Same.
        * dse.c: Same.
        * dump-context.h: Same.
        * dumpfile.h: Same.
        * dwarf2out.c: Same.
        * edit-context.c: Same.
        * fibonacci_heap.c (test_union_of_equal_heaps): Same.
        * flags.h: Same.
        * function.c (assign_stack_local): Same.
        * function.h: Same.
        * gcc.c: Same.
        * gcov.c (block_info::block_info): Same.
        * genattrtab.c: Same.
        * genextract.c: Same.
        * genmatch.c (comparison_code_p): Same.
        (id_base::id_base): Same.
        (decision_tree::print): Same.
        * genoutput.c: Same.
        * genpreds.c (write_one_predicate_function): Same.
        * genrecog.c (validate_pattern): Same.
        (find_operand_positions): Same.
        (optimize_subroutine_group): Same.
        (merge_pattern_transition::merge_pattern_transition): Same.
        (merge_pattern_info::merge_pattern_info): Same.
        (merge_state_result::merge_state_result): Same.
        (merge_into_state): Same.
        * gensupport.c: Same.
        * gensupport.h: Same.
        * ggc-common.c (init_ggc_heuristics): Same.
        * ggc-tests.c (test_union): Same.
        * gimple-loop-interchange.cc (dump_induction): Same.
        * gimple-loop-versioning.cc: Same.
        * gimple-match.h (gimple_match_cond::any_else): Same.
        * gimple-ssa-backprop.c: Same.
        * gimple-ssa-sprintf.c: Same.
        * gimple-ssa-store-merging.c (store_operand_info::store_operand_info):
        Same.
        (store_immediate_info::store_immediate_info): Same.
        (merged_store_group::apply_stores): Same.
        (get_location_for_stmts): Same.
        * gimple-ssa-strength-reduction.c: Same.
        * gimple-ssa-warn-alloca.c: Same.
        * gimple-ssa-warn-restrict.c (pass_wrestrict::execute): Same.
        * godump.c (go_type_decl): Same.
        * hash-map-tests.c (test_map_of_strings_to_int): Same.
        * hash-map.h: Same.
        * hash-set-tests.c (test_set_of_strings): Same.
        * hsa-brig.c: Same.
        * hsa-common.h: Same.
        * hsa-gen.c (transformable_switch_to_sbr_p): Same.
        * input.c (assert_loceq): Same.
        * input.h: Same.
        * ipa-cp.c: Same.
        * ipa-devirt.c (possible_polymorphic_call_targets_1): Same.
        * ipa-fnsummary.h: Same.
        * ipa-inline.h: Same.
        * ipa-prop.h: Same.
        * ipa-split.c (visit_bb): Same.
        * ira-int.h (minmax_set_iter_next): Same.
        * loop-invariant.c: Same.
        * loop-iv.c: Same.
        * lra-eliminations.c: Same.
        * lra-int.h: Same.
        * lra-lives.c (mark_regno_dead): Same.
        * lra-remat.c: Same.
        * lra-spills.c: Same.
        * lto-streamer.h: Same.
        * mem-stats.h: Same.
        * omp-grid.c (omp_grid_lastprivate_predicate): Same.
        * omp-low.c (omp_clause_aligned_alignment): Same.
        * optabs-query.h (get_vcond_eq_icode): Same.
        * optabs.h: Same.
        * opts.c (wrap_help): Same.
        * poly-int.h: Same.
        * predict.c (predict_paths_leading_to_edge): Same.
        * pretty-print.h: Same.
        * profile-count.h: Same.
        * read-md.h: Same.
        * read-rtl-function.c: Same.
        * ree.c: Same.
        * reginfo.c: Same.
        * regrename.c: Same.
        * regrename.h: Same.
        * reload.h: Same.
        * rtl-iter.h: Same.
        * rtl.h (costs_add_n_insns): Same.
        * sanopt.c: Same.
        * sched-int.h: Same.
        * sel-sched-ir.h: Same.
        * selftest.h: Same.
        * sese.h (vec_find): Same.
        * stmt.c: Same.
        * target-globals.h: Same.
        * tree-affine.c (aff_combination_find_elt): Same.
        * tree-affine.h: Same.
        * tree-data-ref.h: Same.
        * tree-outof-ssa.c (ssa_is_replaceable_p): Same.
        * tree-predcom.c: Same.
        * tree-scalar-evolution.c (find_var_scev_info): Same.
        * tree-ssa-alias.h: Same.
        * tree-ssa-ccp.c: Same.
        * tree-ssa-coalesce.c (ssa_conflicts_dump): Same.
        * tree-ssa-loop-im.c (for_all_locs_in_loop): Same.
        (rewrite_mem_refs): Same.
        (execute_sm_if_changed): Same.
        (hoist_memory_references): Same.
        * tree-ssa-loop-ivopts.c (operator<=): Same.
        * tree-ssa-loop.h: Same.
        * tree-ssa-pre.c (get_or_alloc_expr_for_name): Same.
        * tree-ssa-structalias.c: Same.
        * tree-switch-conversion.h (cluster::cluster): Same.
        (simple_cluster::simple_cluster): Same.
        * tree-vect-patterns.c (type_conversion_p): Same.
        * tree-vectorizer.c (dump_stmt_cost): Same.
        * tree-vectorizer.h (loop_vec_info_for_loop): Same.
        * tree.c (protected_set_expr_location): Same.
        * tree.h (desired_pro_or_demotion_p): Same.
        (fndecl_built_in_p): Same.
        * unique-ptr-tests.cc: Same.
        * var-tracking.c (delete_variable_part): Same.
        * varasm.c (assemble_real): Same.
        (tree_output_constant_def): Same.
        * vec.c: Same.
        * wide-int-bitmask.h: Same.
        * wide-int.h (decompose): Same.

2019-07-09  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91114
        * tree-vect-data-refs.c (vect_analyze_data_refs): Failure to
        find a vector type isn't fatal.

2019-07-09  Sylvia Taylor  <sylvia.taylor@arm.com>

        * config/aarch64/aarch64-simd.md
        (aarch64_crypto_aes<aes_op>v16qi): Redefine pattern with xor.
        (aarch64_crypto_aes<aesmc_op>v16qi): Remove attribute enabled.
        (*aarch64_crypto_aes<aes_op>v16qi_xor_combine): Remove both.
        (*aarch64_crypto_aese_fused,
        *aarch64_crypto_aesd_fused): Update to new definition.
        * config/aarch64/aarch64.c
        (aarch_macro_fusion_pair_p): Remove aese/aesmc fusion check.

2019-07-09  Richard Biener  <rguenther@suse.de>

        * gimple-match.h (gimple_match_op::resimplify): New.
        (gimple_resimplify1, gimple_resimplify2, gimple_resimplify3,
        gimple_resimplify4, gimple_resimplify5): Remove.
        * gimple-match-head.c (gimple_resimplify1, gimple_resimplify2,
        gimple_resimplify3, gimple_resimplify4, gimple_resimplify5):
        Make static.
        (gimple_match_op::resimplify): New.
        * tree-ssa-sccvn.c (vn_nary_build_or_lookup_1): Valueize
        according to availability.  Use gimple_match_op::resimplify.

2019-07-09  Eric Botcazou  <ebotcazou@adacore.com>

        * ira-emit.c (emit_moves): Skip DEBUG_INSNs when setting the location.

2019-07-09  Sylvia Taylor  <sylvia.taylor@arm.com>

        * config/arm/crypto.md:
        (crypto_<crypto_pattern>): Redefine aese/aesd pattern with xor.
        (crypto_<crypto_pattern>): Remove attribute enabled for aesmc.
        (crypto_<crypto_pattern>): Split CRYPTO_BINARY into 2 patterns.
        (*aarch32_crypto_aese_fused, *aarch32_crypto_aesd_fused): New.
        * config/arm/arm.c
        (aarch_macro_fusion_pair_p): Remove aes/aesmc fusion check.
        * config/arm/aarch-common-protos.h
        (aarch_crypto_can_dual_issue): Remove.
        * config/arm/aarch-common.c
        (aarch_crypto_can_dual_issue): Likewise.
        * config/arm/exynos-m1.md: Remove aese/aesmc fusion.
        * config/arm/cortex-a53.md: Likewise.
        * config/arm/cortex-a57.md: Likewise.
        * config/arm/iterators.md:
        (CRYPTO_BINARY): Redefine.
        (CRYPTO_UNARY): Removed.
        (CRYPTO_AES, CRYPTO_AESMC): New.

2019-07-09  Richard Biener  <rguenther@suse.de>

        * tree-ssa-sccvn.c (struct vn_walk_cb_data): Add orig_ref member.
        (vn_reference_lookup_3): If the main ref has no access path recorded
        but orig_ref has use it to do access-path based disambiguation.
        (vn_reference_lookup_pieces): Adjust.
        (vn_reference_lookup): Pass down original ref if we valueized.

2019-07-09  Martin Liska  <mliska@suse.cz>

        * doc/extend.texi: Document influence on loop
        optimizers.

2019-07-09  Martin Liska  <mliska@suse.cz>

        * lto-compress.c (lto_normalized_zstd_level): Do not use
        ZSTD_CLEVEL_DEFAULT as it is not default in old releases
        of libzstd.  One can use 0 as a default compression level.

2019-07-09  Martin Liska  <mliska@suse.cz>

        * doc/invoke.texi: Add link from -fprofile-dir option.
        Use better wording for 'gcno filename'.

2019-07-08  Martin Sebor  <msebor@redhat.com>

        PR middle-end/71924
        PR middle-end/90549
        * gimple-ssa-isolate-paths.c (isolate_path): Add attribute.  Update
        comment.
        (args_loc_t): New type.
        (args_loc_t, locmap_t): same.
        (diag_returned_locals): New function.
        (is_addr_local): Same.
        (handle_return_addr_local_phi_arg, warn_return_addr_local): Same.
        (find_implicit_erroneous_behavior): Call warn_return_addr_local_phi_arg.
        (find_explicit_erroneous_behavior): Call warn_return_addr_local.

2019-07-08  Jakub Jelinek  <jakub@redhat.com>

        * tree-vect-stmts.c (scan_operand_equal_p): Look through MEM_REF
        with SSA_NAME address of POINTER_PLUS_EXPR.  Handle MULT_EXPR
        and casts in offset when different, both through gimple stmts
        and through trees.  Rewritten using loops to minimize code duplication
        for each operand.

2019-07-08  Eric Botcazou  <ebotcazou@adacore.com>

        * emit-rtl.c (set_insn_locations): New function moved from...
        * function.c (set_insn_locations): ...here.
        * ira-emit.c (emit_moves): Propagate location of the first instruction
        to the inserted move instructions.
        * reg-stack.c (compensate_edge): Set the location if the sequence is
        inserted on the edge.
        * rtl.h (set_insn_locations): Declare.

2019-07-08  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (rs6000_machine_from_flags): Ignore
        OPTION_MASK_PPC_GFXOPT and OPTION_MASK_PPC_GPOPT for selecting the
        .machine string.

2019-07-08  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/88233
        * common.opt (fsplit-wide-types-early): New option.
        * common/config/rs6000/rs6000-common.c
        (rs6000_option_optimization_table): Add OPT_fsplit_wide_types_early for
        OPT_LEVELS_ALL.
        * doc/invoke.texi (Optimization Options): Add -fsplit-wide-types-early.
        * lower-subreg.c (pass_lower_subreg2::gate): Add test for
        flag_split_wide_types_early.
        (pass_data_lower_subreg3): New.
        (pass_lower_subreg3): New.
        (make_pass_lower_subreg3): New.
        * passes.def (pass_lower_subreg2): Move after the loop passes.
        (pass_lower_subreg3): New, inserted where pass_lower_subreg2 was.
        * tree-pass.h (make_pass_lower_subreg2): Move up, to its new place in
        the pass pipeline; its previous place is taken by ...
        (make_pass_lower_subreg3): ... this.

2019-07-08  Robin Dapp  <rdapp@linux.ibm.com>

        * config/s390/s390.c (s390_shift_truncation_mask): Define.
        (TARGET_SHIFT_TRUNCATION_MASK): Define.

2019-07-08  Robin Dapp  <rdapp@linux.ibm.com>

        * config/s390/constraints.md: Add new jsc constraint.
        * config/s390/predicates.md: New predicates.
        * config/s390/s390-protos.h (s390_valid_shift_count): New function.
        * config/s390/s390.c (s390_valid_shift_count): New function.
        (print_shift_count_operand): Use s390_valid_shift_count.
        (print_operand): Likewise.
        * config/s390/s390.md: Use new predicate.
        * config/s390/subst.md: Remove addr_style_op and masked_op substs.
        * config/s390/vector.md: Use new predicate.

2019-07-08  Andrew Waterman  <andrew@sifive.com>
            Jim Wilson  <jimw@sifive.com>

        * config/riscv/riscv.md (lshrsi3_zero_extend_3+1): Use operands[1]
        bitsize instead of BITS_PER_WORD.

2019-07-08  Martin Liska  <mliska@suse.cz>

        * collect2.c (defined): Revert to before r254460.
        (scan_prog_file): Revert to before r254460.

2019-07-08  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/83518
        * tree-ssa-sccvn.c: Include splay-tree.h.
        (struct pd_range, struct pd_data): New.
        (struct vn_walk_cb_data): Add data to track partial definitions.
        (vn_walk_cb_data::~vn_walk_cb_data): New.
        (vn_walk_cb_data::push_partial_def): New.
        (pd_tree_alloc, pd_tree_dealloc, pd_range_compare): New.
        (vn_reference_lookup_2): When partial defs are registered give up.
        (vn_reference_lookup_3): Track partial defs for memset and
        constructor zeroing and for defs from constants.

2019-07-08  Richard Sandiford  <richard.sandiford@arm.com>

        * doc/install.texi (bootstrap-Og): Document.

2019-07-08  Richard Sandiford  <richard.sandiford@arm.com>

        * config/riscv/pic.md (*local_pic_load_s<mode>)
        (*local_pic_load_u<mode>): Explicitly specify the mode iterator
        referenced by <mode>, giving...
        (*local_pic_load_s<SUBX:mode>, *local_pic_load_u<SUBX:mode>): ...these.
        * config/riscv/riscv.md (*sge<u>_<X:mode><GPR:mode>)
        (*slt<u>_<X:mode><GPR:mode>, *sle<u>_<X:mode><GPR:mode>): Explicitly
        use <X:MODE> for the mode attribute.

2019-07-07  Jeff Law  <law@redhat.com>

        PR tree-optimization/91090
        * tree-ssa-dom.c (simplify_stmt_for_jump_threading): Fix logic error
        in handling of ranges to simplify switch statements.

2019-07-07  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.c (darwin_override_options): Make a final check on PIC
        options.

2019-07-07  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.c (darwin_override_options): Don't jam symbol stubs
        on for kernel code.

2019-07-07  Richard Sandiford  <richard.sandiford@arm.com>

        PR target/91068
        * config/mips/mips.md (*mul_acc_si, *mul_acc_si_r3900, *macc)
        (*msac, *msac_using_macc, *mul_sub_si): Use "l" for input operands
        instead of matching them to "l" output operands.

2019-07-07  Richard Sandiford  <richard.sandiford@arm.com>

        * config/mips/mips.c (mips_split_move): Zero-initialize addr
        and check whether addr.reg is nonnull before using it.

2019-07-06  Jakub Jelinek  <jakub@redhat.com>

        * omp-low.c (lower_rec_input_clauses): For lastprivate clauses in
        ctx->for_simd_scan_phase simd copy the outer var to the privatized
        variable(s).  For conditional lastprivate look through outer
        GIMPLE_OMP_SCAN context.
        (lower_omp_1): For conditional lastprivate look through outer
        GIMPLE_OMP_SCAN context.

        * omp-low.c (struct omp_context): Rename combined_into_simd_safelen0
        member to combined_into_simd_safelen1.
        (lower_rec_input_clauses, lower_omp_1): Adjust uses.
        (lower_lastprivate_clauses): Likewise.  For conditional lastprivate
        clauses if ctx->combined_into_simd_safelen1 put statements after the
        predicate conditionalized block rather than into it.

2019-07-06  Richard Sandiford  <richard.sandiford@arm.com>

        * config/s390/s390.md (*negabs<FP:mode>2_nocc): Use FP for
        operand 1.
        * config/s390/vx-builtins.md (*vec_cmp<insn_cmp><mode>_cconly):
        Make the choice of <mode> explicit, giving...
        (*vec_cmp<insn_cmp><VF_HW:mode>_cconly): ...this.

2019-07-06  Richard Sandiford  <richard.sandiford@arm.com>

        * config/i386/i386.md (*fop_<X87MODEF:mode>_3_i387)
        (l<rounding_insn><MODEF:mode><SWI48:mode>2): Fix ambiguous uses
        of .md attributes.
        * config/i386/sse.md (*avx512pf_gatherpf<mode>sf_mask)
        (*avx512pf_gatherpf<mode>df_mask, *avx512pf_scatterpf<mode>sf_mask)
        (*avx512pf_scatterpf<mode>df_mask, *avx2_gathersi<mode>)
        (*avx2_gathersi<mode>_2, *avx2_gatherdi<mode>)
        (*avx2_gatherdi<mode>_2, *avx2_gatherdi<mode>_3): Likewise.
        (*avx2_gatherdi<mode>_4, *avx512f_gathersi<mode>): Likewise.
        (*avx512f_gathersi<mode>_2, *avx512f_gatherdi<mode>): Likewise.
        (*avx512f_gatherdi<mode>_2, *avx512f_scattersi<mode>): Likewise.
        (*avx512f_scatterdi<mode>): Likewise.
        (*andnot<mode>3_bcst): Fix VI/VI48_AVX512VL typo.

2019-07-06  Richard Sandiford  <richard.sandiford@arm.com>

        * config/h8300/h8300.md (*push1_h8300hs_<mode>): Explicitly
        specify the mode iterator referenced by <mode>, giving...
        (*push1_h8300hs_<QHI:mode>): ...this.

2019-07-06  Richard Sandiford  <richard.sandiford@arm.com>

        * config/gcn/gcn-valu.md
        (vcond<VEC_1REG_MODE:mode><VEC_1REG_ALT:mode>): Use
        gen_vec_cmp<VEC_1REG_ALT:mode>di rather than (implicitly)
        gen_vec_cmp<VEC_1REG_MODE:mode>di.  Explicitly use
        gen_vcond_mask_<VEC_1REG_MODE:mode>di.
        (vcond<VEC_1REG_MODE:mode><VEC_1REG_ALT:mode>_exec): Likewise,
        but using the _exec comparison patterns.
        (vcondu<VEC_1REG_INT_MODE:mode><VEC_1REG_INT_ALT:mode>): Use
        gen_vec_cmp<VEC_1REG_INT_ALT:mode>di rather than (implicitly)
        gen_vec_cmp<VEC_1REG_INT_MODE:mode>di.  Explicitly use
        gen_vcond_mask_<VEC_1REG_INT_MODE:mode>di.
        (vcondu<VEC_1REG_INT_MODE:mode><VEC_1REG_INT_ALT:mode>_exec): Likewise,
        but using the _exec comparison patterns.

2019-07-06  Richard Sandiford  <richard.sandiford@arm.com>

        * config/arm/sync.md
        (@atomic_compare_and_swap<CCSI:arch><NARROW:mode>_1): Use
        <NARROW:sync_predtab> instead of (implicitly) <CCSI:sync_predtab>.
        (@atomic_compare_and_swap<CCSI:arch><SIDI:mode>_1): Likewise use
        <SIDI:sync_predtab>.  Use <SIDI:cas_cmp_operand> and
        <SIDI:cas_cmp_str>.

2019-07-06  Jakub Jelinek  <jakub@redhat.com>

        * omp-low.c (struct omp_context): Add for_simd_scan_phase member.
        (maybe_lookup_ctx): Add forward declaration.
        (omp_find_scan): Likewise.  Walk into body of simd if composited
        with worksharing loop.
        (scan_omp_simd_scan): New function.
        (scan_omp_1_stmt): Call it.
        (lower_rec_simd_input_clauses): Don't create rvar nor rvar2 if
        ctx->for_simd_scan_phase.
        (lower_rec_input_clauses): Do much less work for inscan reductions
        in ctx->for_simd_scan_phase is_simd regions.
        (lower_omp_scan): Set is_simd also on simd constructs composited
        with worksharing loop, unless ctx->for_simd_scan_phase.  Never emit
        a sorry message.  Don't change GIMPLE_OMP_SCAN stmts into nops and
        emit their body after in simd constructs composited with worksharing
        loop.
        (lower_omp_for_scan): Handle worksharing loop composited with simd.

        * omp-low.c (omp_find_scan): Make static.
        (lower_omp_for_scan): Fix order of merge arguments in input phase of
        the second loop, var2 represents the first partial sum and so needs
        to go before rprivb[ivar].

2019-07-05  Iain Sandoe  <iain@sandoe.co.uk>

        * config/rs6000/rs6000-logue.c: Remove unused code.

2019-07-05  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-loop-manip.c (create_iv): Add missing guard for gsi_end_p.

2019-07-05  Sam Tebbs  <sam.tebbs@arm.com>

        PR target/90712
        * config/aarch64/aarch64.c (aarch64_post_cfi_startproc): Replace thunk
        check with a frame laid out check.

2019-07-05  Richard Biener  <rguenther@suse.de>

        * tree-ssa-sccvn.c (vn_reference_lookup_3): Valueize RHS
        when comparing against a store with possibly the same value.

2019-07-05  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91091
        * tree-ssa-alias.h (get_continuation_for_phi): Add tbaa_p parameter.
        (walk_non_aliased_vuses): Likewise.
        * tree-ssa-alias.c (maybe_skip_until): Pass down tbaa_p.
        (get_continuation_for_phi): New tbaa_p parameter and pass
        it down.
        (walk_non_aliased_vuses): Likewise.
        * ipa-prop.c (determine_known_aggregate_parts): Adjust.
        * tree-ssa-pre.c (translate_vuse_through_block): Likewise.
        * tree-ssa-scopedtables.c (avail_exprs_stack::lookup_avail_expr):
        Likewise.
        * tree-ssa-sccvn.c (struct vn_walk_cb_data): Add tbaa_p flag.
        (adjust_offsets_for_equal_base_address): New function.
        (vn_reference_lookup_3): Use it to catch more base equivalences.
        Handle and pass down tbaa_p flag.
        (vn_reference_lookup_pieces): Adjust.
        (vn_reference_lookup): Remove alias-set altering, instead pass
        down false as tbaa_p.

2019-07-05  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/91091
        * tree-ssa-sccvn.c (vn_reference_lookup_3): Overlap of
        accesses can happen with -fno-strict-aliasing.

2019-07-05  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-alias.c (alias_stats): Add
        nonoverlapping_component_refs_since_match_p_must_overlap.
        (dump_alias_stats): Print it.
        (nonoverlapping_component_refs_since_match_p): Add early exit.
        (nonoverlapping_component_refs_p): Do not account early exit.

2019-07-05  Eric Botcazou  <ebotcazou@adacore.com>

        * except.c (emit_to_new_bb_before): Make sure to put a location on SEQ.
        * tree-eh.c (replace_goto_queue_1) <GIMPLE_GOTO>: Propagate location.
        (emit_eh_dispatch): Delete.
        (lower_catch): Emit the eh_dispatch manually and set the location of
        the first catch statement onto it.
        (lower_eh_filter): Emit the eh_dispatch manually and set location.
        (lower_eh_dispatch): Propagate location.
        * tree-outof-ssa.c (set_location_for_edge): Handle EH edges specially.
        (eliminate_build): Likewise.

2019-07-05  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-cfg.c (gimple_make_forwarder_block): Propagate location info on
        phi nodes if possible.
        * tree-scalar-evolution.c (final_value_replacement_loop): Propagate
        location info on the newly created statement.
        * tree-ssa-loop-manip.c (create_iv): Propagate location info on the
        newly created increment if needed.

2019-07-04  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/78884
        * gimplify.c (struct gimplify_omp_ctx): Add add_safelen1 member.
        (gimplify_bind_expr): If seeing TREE_ADDRESSABLE VLA inside of simd
        loop body, set ctx->add_safelen1 instead of making it GOVD_PRIVATE.
        (gimplify_adjust_omp_clauses): Add safelen (1) clause if
        ctx->add_safelen1 is set.

        * omp-expand.c (expand_omp_for_static_nochunk): Don't emit
        GOMP_loop_start at the start of second worksharing loop in a scan.
        For nowait, don't emit GOMP_loop_end_nowait at the end of first
        worksharing loop in a scan even if there are conditional lastprivates,
        and do emit GOMP_loop_end_nowait at the end of second worksharing loop.

2019-07-04  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-alias.c (nonoverlapping_component_refs_since_match_p):
        Fix check for match in the ref walk.

2019-07-04  Martin Liska  <mliska@suse.cz>

        * tree-ssa-loop-niter.c
        (get_upper_bound_based_on_builtin_expr_with_prob): New function.
        (estimate_numbers_of_iterations):
        Support __builtin_expect_with_probability for analysis
        of # of loop iterations.

2019-07-04  Alexandre Oliva  <oliva@adacore.com>

        * doc/generic.texi (Cleanups): Document EH_ELSE_EXPR.
        * except.c: Likewise.
        * expr.c (expand_expr_real_1): Reject it.
        * gimplify.c (gimplify_expr): Gimplify it, within
        TRY_FINALLY_EXPR.
        * tree-dump.c (dequeue_and_dump): Dump it.
        * tree-pretty-print.c (dump_generic_node): Likewise.
        * tree.c (block_may_fallthru): Handle it.
        * tree.def (EH_ELSE_EXPR): Introduce it.
        * gimple-pretty-print.c (dump_gimple_try): Dump TRY_FINALLY
        with GIMPLE_EH_ELSE as try/finally/else.

2019-07-04  Richard Biener  <rguenther@suse.de>

        PR ipa/91062
        * tree-pass.h (execute_all_ipa_transforms): Add a flag
        parameter whether to disable GC collection.
        * passes.c (execute_one_ipa_transform_pass): Likewise, and
        honor it.
        (execute_all_ipa_transforms): Likewise and pass it down.
        * cgraph.c (cgraph_node::get_body): Do not invoke garbage
        collection from applying IPA transforms.
        * cgraphunit.c (cgraph_node::expand): Allow garbage collection
        from applying IPA transforms.

2019-07-04  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90911
        * tree-vectorizer.h (_loop_vec_info::scalar_loop_scaling): New field.
        (LOOP_VINFO_SCALAR_LOOP_SCALING): new.
        * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
        scalar_loop_scaling.
        (vect_transform_loop): Scale scalar loop profile if needed.
        * tree-vect-loop-manip.c (vect_loop_versioning): When re-using
        the loop copy from if-conversion adjust edge probabilities
        and scale the vectorized loop body profile, queue the scalar
        profile for updating after peeling.

2019-07-04  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-alias.c (decl_refs_may_alias_p): Add size1 and size2
        parameters; return early for must-alias.
        (indirect_ref_may_alias_decl_p): Likewise; when establishing
        outer types match, try nonoverlapping_component_refs
        if must-alias is not obvious.
        (indirect_refs_may_alias_p): Likewise.
        (refs_may_alias_p_2): Likewise.

2019-07-04  Richard Biener  <rguenther@suse.de>

        * tree-ssa-sccvn.h (vn_reference_lookup): Add last_vuse_ptr
        argument.
        * tree-ssa-sccvn.c (last_vuse_ptr, vn_walk_kind): Move
        globals into...
        (struct vn_walk_cb_data): New callback data struct.
        (vn_reference_lookup_2): Adjust.
        (vn_reference_lookup_3): Likewise.
        (vn_reference_lookup_pieces): Likewise.
        (vn_reference_lookup): Likewise, get last_vuse_ptr argument.
        (visit_reference_op_load): Adjust.

2019-07-04  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/91063
        * tree-vect-stmts.c (vect_init_vector): Call gsi_remove to remove
        stmt from stmts sequence before calling vect_init_vector_1.
        Formatting fix.

2019-07-04  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR target/88833
        * fwprop.c (reg_single_def_p): New function.
        (propagate_rtx_1): Add unconditional else inside RTX_EXTRA case.
        (forward_propagate_into): New parameter reg_prop_only
        with default value false.
        Propagate def's src into loop only if SET_SRC and SET_DEST
        of def_set have single definitions.
        Likewise if reg_prop_only is set to true.
        (fwprop): New param fwprop_addr_p.
        Integrate fwprop_addr into fwprop.
        (fwprop_addr): Remove.
        (pass_rtl_fwprop_addr::execute): Call fwprop with arg set
        to true.
        (pass_rtl_fwprop::execute): Call fwprop with arg set to false.
        * simplify-rtx.c (simplify_subreg): Add case for vector comparison.
        * config/i386/sse.md (UNSPEC_BLENDV): Adjust pattern.

2019-07-04  Jakub Jelinek  <jakub@redhat.com>

        * omp-low.c (lower_omp_scan): Call lower_omp on stmt's body
        in worksharing loop scans.

        PR tree-optimization/91074
        * omp-low.c (lower_omp_for_scan): Set DECL_GIMPLE_REG_P on cplx
        temporary.

        PR rtl-optimization/90756
        * explow.c (promote_ssa_mode): Always use TYPE_MODE, don't bypass it
        for VECTOR_TYPE_P.

2019-07-03  Dennis Zhang  <dennis.zhang@arm.com>

        * config/aarch64/aarch64.md: Remove redundant constraints from
        define_expand but keep some patterns untouched if they are
        specially selected by TARGET_SECONDARY_RELOAD hook.
        * config/aarch64/aarch64-sve.md: Likewise.
        * config/aarch64/atomics.md: Remove redundant constraints from
        define_expand.
        * config/aarch64/aarch64-simd.md: Likewise.

2019-07-03  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.h (DRIVER_SELF_SPECS): Remove the linker cases.
        (RDYNAMIC): Rename to, DARWIN_RDYNAMIC.
        (DARWIN_PIE_SPEC, DARWIN_NOPIE_SPEC): Adjust to remove the Xlinker
        clauses.
        (LINK_COMMAND_SPEC_A): Add DARWIN_RDYNAMIC, DARWIN_PIE_SPEC and
        DARWIN_NOPIE_SPEC.

2019-07-03  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.h (REAL_LIBGCC_SPEC): Adjust for earlier Darwin.
        (STARTFILE_SPEC): Split crt3 into a separate spec.
        (DARWIN_EXTRA_SPECS): Add crt2 and crt3 spec.
        (DARWIN_CRT2_SPEC): New.
        (DARWIN_CRT3_SPEC): New.
        (MIN_LD64_OMIT_STUBS): Revise to 62.1.
        * config/rs6000/darwin.h (DARWIN_CRT2_SPEC): Revise conditions.
        (DARWIN_CRT3_SPEC): New.

2019-07-03  Michael Meissner  <meissner@linux.ibm.com>

        * config/rs6000/altivec.md (altivec_mov<mode>, VM2 iterator):
        Change the RTL attribute "length" from "4" to "*" to allow the
        length attribute to be adjusted automatically for prefixed load,
        store, and add immediate instructions.
        * config/rs6000/rs6000.md (extendhi<mode>2, EXTHI iterator):
        Likewise.
        (extendsi<mode>2, EXTSI iterator): Likewise.
        (movsi_internal1): Likewise.
        (movsi_from_sf): Likewise.
        (movdi_from_sf_zero_ext): Likewise.
        (mov<mode>_internal): Likewise.
        (movcc_internal1, QHI iterator): Likewise.
        (mov<mode>_softfloat, FMOVE32 iterator): Likewise.
        (movsf_from_si): Likewise.
        (mov<mode>_hardfloat32, FMOVE64 iterator): Likewise.
        (mov<mode>_softfloat64, FMOVE64 iterator): Likewise.
        (mov<mode>, FMOVE128 iterator): Likewise.
        (movdi_internal64): Likewise.
        * config/rs6000/vsx.md (vsx_le_permute_<mode>, VSX_TI iterator):
        Likewise.
        (vsx_le_undo_permute_<mode>, VSX_TI iterator): Likewise.
        (vsx_mov<mode>_64bit, VSX_M iterator): Likewise.
        (vsx_mov<mode>_32bit, VSX_M iterator): Likewise.
        (vsx_splat_v4sf): Likewise.

2019-07-03  Mark Wielaard  <mark@klomp.org>

        PR debug/90981
        * dwarf2out.c (add_top_level_skeleton_die_attrs): Only add
        DW_AT_addr_base if there is actually a .debug_addr section with
        addresses.
        (output_addr_table): Add DWARF5 table header generation here after
        checking there are actually any addresses from...
        (dwarf2out_finish): ...here.

2019-07-03  Richard Biener  <rguenther@suse.de>

        PR middle-end/91069
        * match.pd (vec_perm -> bit_insert): Fix element read from
        first vector.

2019-07-03  Martin Liska  <mliska@suse.cz>

        * dbgcnt.def (DEBUG_COUNTER): Add match debug counter.
        * genmatch.c (dt_simplify::gen_1): Generate dbgcnt
        condition.
        * generic-match-head.c: Include dbgcnt.h.
        * gimple-match-head.c: Likewise.

2019-07-03  Martin Liska  <mliska@suse.cz>

        * gcov-counter.def (GCOV_COUNTER_V_SINGLE): Remove.
        (GCOV_COUNTER_V_TOPN): New.
        (GCOV_COUNTER_V_INDIR): Use _topn.
        * gcov-io.h (GCOV_DISK_SINGLE_VALUES): Remove.
        (GCOV_TOPN_VALUES): New.
        (GCOV_SINGLE_VALUE_COUNTERS): Remove.
        (GCOV_TOPN_VALUES_COUNTERS): New.
        * profile.c (instrument_values): Use HIST_TYPE_TOPN_VALUES.
        * tree-profile.c:
        (gimple_init_gcov_profiler): Rename variables from one_value
        to topn_values.
        (gimple_gen_one_value_profiler): Remove.
        (gimple_gen_topn_values_profiler): New function.
        * value-prof.c (dump_histogram_value): Use TOPN_VALUES
        names instead of SINGLE_VALUE.
        (stream_out_histogram_value): Likewise.
        (stream_in_histogram_value): Likewise.
        (get_most_common_single_value): Likewise.
        (gimple_divmod_fixed_value_transform): Likewise.
        (gimple_stringops_transform): Likewise.
        (gimple_divmod_values_to_profile): Likewise.
        (gimple_stringops_values_to_profile): Likewise.
        (gimple_find_values_to_profile): Likewise.
        * value-prof.h (enum hist_type): Rename to TOPN.
        (gimple_gen_one_value_profiler): Remove.
        (gimple_gen_topn_values_profiler): New.

2019-07-03  Eric Botcazou  <ebotcazou@adacore.com>

        * dwarf2out.c (add_scalar_info): Add back refererence to existing DIE
        if it has the DW_AT_data_member_location attribute.

2019-07-03  Richard Biener  <rguenther@suse.de>

        * gimple-pretty-print.c (dump_ternary_rhs): Fix BIT_INSERT_EXPR
        dumping.

2019-07-03  Sylvia Taylor  <sylvia.taylor@arm.com>

        * config/aarch64/aarch64.md (FP_REGNUM): New constant.
        (tlsdesc_small_advsimd_<mode>): Add use of FP_REGNUM.
        (tlsdesc_small_sve_<mode>): Likewise.

2019-07-03  Martin Liska  <mliska@suse.cz>

        * Makefile.in: Define ZSTD_LIB.
        * common.opt: Adjust compression level
        to support also zstd levels.
        * config.in: Regenerate.
        * configure: Likewise.
        * configure.ac: Add --with-zstd and --with-zstd-include options
        and detect ZSTD.
        * doc/install.texi: Mention zstd dependency.
        * gcc.c: Print supported LTO compression algorithms.
        * lto-compress.c (lto_normalized_zstd_level): Likewise.
        (lto_compression_zstd): Likewise.
        (lto_uncompression_zstd): Likewise.
        (lto_end_compression): Dispatch in between zlib and zstd.
        (lto_compression_zlib): Mark with ATTRIBUTE_UNUSED.
        (lto_uncompression_zlib): Make it static.
        * lto-compress.h (lto_end_uncompression): Fix GNU coding style.
        * lto-section-in.c (lto_get_section_data): Pass info
        about used compression.
        * lto-streamer-out.c: By default use zstd when possible.
        * timevar.def (TV_IPA_LTO_DECOMPRESS): Rename to decompression
        (TV_IPA_LTO_COMPRESS): Likewise for compression.

2019-07-03  Martin Liska  <mliska@suse.cz>

        * lto-section-in.c (lto_get_section_data): Add "lto" section.
        * lto-section-out.c (lto_destroy_simple_output_block): Never
        compress LTO_section_lto section.
        * lto-streamer-out.c (produce_asm): Do not set major_version
        and minor_version.
        (lto_output_toplevel_asms): Likewise.
        (produce_lto_section): New function.
        (lto_output): Call produce_lto_section.
        (lto_write_mode_table): Do not set major_version and
        minor_version.
        (produce_asm_for_decls): Likewise.
        * lto-streamer.h (enum lto_section_type): Add LTO_section_lto
        type.
        (struct lto_header): Remove.
        (struct lto_section): New struct.
        (struct lto_simple_header): Do not inherit from lto_header.
        (struct lto_file_decl_data): Add lto_section_header field.

2019-07-03  Martin Liska  <mliska@suse.cz>

        * lra-eliminations.c (eliminate_regs_in_insn): Remove
        dead assignemts.
        * reg-stack.c (check_asm_stack_operands): Likewise.
        * tree-ssa-structalias.c (create_function_info_for): Likewise.
        * tree-vect-generic.c (expand_vector_operations_1): Likewise.
        * config/i386/i386-expand.c (ix86_expand_sse2_mulvxdi3): Use
        force_expand_binop.

2019-07-03  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/90892
        * builtins.c (inline_expand_builtin_string_cmp): Handle '\0'
        in string constants.

2019-07-03  Martin Liska  <mliska@suse.cz>

        PR middle-end/90899
        * multiple_target.c (create_dispatcher_calls): Add to comdat
        group only if set for ifunc.

2019-07-03  Martin Liska  <mliska@suse.cz>

        PR target/88056
        * config/i386/host-mingw32.c (mingw32_gt_pch_use_address):
        Define local_object_name in outer scope in order to handle
        use-after-scope issue.

2019-07-03  Martin Liska  <mliska@suse.cz>

        * common.opt: Add fprofile-note.
        * coverage.c (coverage_init): Append the option
        to bbg_file_name.
        * doc/invoke.texi: Document -fprofile-note.

2019-07-03  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/91033
        * tree-vectorizer.h (vect_mark_stmts_to_be_vectorized,
        vect_analyze_data_refs): Add bool * arguments.
        * tree-vect-data-refs.c (vect_analyze_data_refs): Add fatal argument,
        if failure is due to scatter/gather, set *fatal to false if non-NULL.
        * tree-vect-stmts.c (vect_mark_stmts_to_be_vectorized): Likewise.
        * tree-vect-loop.c (vect_analyze_loop_2): Adjust
        vect_mark_stmts_to_be_vectorized and vect_analyze_data_refs callers.
        * tree-vect-slp.c (vect_slp_analyze_bb_1): Adjust
        vect_analyze_data_refs caller.

        * tree-core.h (enum omp_clause_code): Add OMP_CLAUSE__SCANTEMP_
        clause.
        * tree.h (OMP_CLAUSE_DECL): Use OMP_CLAUSE__SCANTEMP_ instead of
        OMP_CLAUSE__CONDTEMP_ as range's upper bound.
        (OMP_CLAUSE__SCANTEMP__ALLOC, OMP_CLAUSE__SCANTEMP__CONTROL): Define.
        * tree.c (omp_clause_num_ops, omp_clause_code_name): Add
        OMP_CLAUSE__SCANTEMP_ entry.
        (walk_tree_1): Handle OMP_CLAUSE__SCANTEMP_.
        * tree-pretty-print.c (dump_omp_clause): Likewise.
        * tree-nested.c (convert_nonlocal_omp_clauses,
        convert_local_omp_clauses): Likewise.
        * omp-general.h (struct omp_for_data): Add have_scantemp and
        have_nonctrl_scantemp members.
        * omp-general.c (omp_extract_for_data): Initialize them.
        * omp-low.c (struct omp_context): Add scan_exclusive member.
        (scan_omp_1_stmt): Don't unnecessarily mask gimple_omp_for_kind
        result again with GF_OMP_FOR_KIND_MASK.  Initialize also
        ctx->scan_exclusive.
        (lower_rec_simd_input_clauses): Use ctx->scan_exclusive instead
        of !ctx->scan_inclusive.
        (lower_rec_input_clauses): Simplify gimplification of dtors using
        gimplify_and_add.  For non-is_simd test OMP_CLAUSE_REDUCTION_INSCAN
        rather than rvarp.  Handle OMP_CLAUSE_REDUCTION_INSCAN in worksharing
        loops.  Don't add barrier for reduction_omp_orig_ref if
        ctx->scan_??xclusive.
        (lower_reduction_clauses): Don't do anything for ctx->scan_??xclusive.
        (lower_omp_scan): Use ctx->scan_exclusive instead
        of !ctx->scan_inclusive.  Handle worksharing loops with inscan
        reductions.  Use new_vard != new_var instead of repeated
        omp_is_reference calls.
        (omp_find_scan, lower_omp_for_scan): New functions.
        (lower_omp_for): Call lower_omp_for_scan for worksharing loops with
        inscan reductions.
        * omp-expand.c (expand_omp_scantemp_alloc): New function.
        (expand_omp_for_static_nochunk): Handle fd->have_nonctrl_scantemp
        and fd->have_scantemp.

        * gimplify.c (gimplify_scan_omp_clauses): For inscan reductions
        on worksharing loop propagate it as shared clause to containing
        combined parallel.

        * omp-expand.c (expand_omp_for_static_nochunk,
        expand_omp_for_static_chunk): For nowait worksharing loop with
        conditional lastprivate clause(s), emit GOMP_loop_end_nowait call
        at the end.

2019-07-02  qing zhao  <qing.zhao@oracle.com>

        PR preprocessor/90581
        * doc/cppopts.texi: Add document for -fmax-include-depth.
        * doc/invoke.texi (Preprocessor Options): List -fmax-include-depth.

2019-07-02  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/mmx.md (mmx_pack<s_trunsuffix>swb):
        Use TARGET_SSE2 && SSE_REGNO_P in split condition.
        (mmx_packssdw): Ditto.
        (mmx_punpckhbw): Ditto.
        (mmx_punpcklbw): Ditto.
        (mmx_punpckhwd): Ditto.
        (mmx_punpcklwd): Ditto.
        (mmx_punpckhdq): Ditto.
        (mmx_punpckldq): Ditto.
        (*vec_dupv4hi): Ditto.
        (*vec_dupv2si): Ditto.
        (mmx_pmovmskb): Ditto.
        * config/i386/sse.md (sse_cvtpi2ps): Use
        TARGET_SSE2 && SSE_REG_P in split condition.
        (ssse3_ph<plusminus_mnemonic>wv4hi3): Use
        TARGET_SSSE3 && SSE_REGNO_P in split condition.
        (ssse3_ph<plusminus_mnemonic>dv2si3): Ditto.
        (ssse3_pshufbv8qi3): Ditto.
        (ssse3_palignrdi): Ditto.

2019-07-02  Andrew Stubbs  <ams@codesourcery.com>

        * config/gcn/gcn.md (movdi_symbol_save_scc): Convert to define_insn
        with inlined save and restore.

2019-07-02  Eric Botcazou  <ebotcazou@adacore.com>

        * cfgexpand.c (pass_expand::execute): Deal specially with instructions
        to be inserted on single successor edge of the entry block.  Then call
        commit_edge_insertions instead of inserting the instructions manually.
        * cfgrtl.c (commit_edge_insertions): Do not verify flow info during
        RTL expansion and rebuild jump labels chain.

2019-07-02  Richard Biener  <rguenther@suse.de>

        * tree-core.h (enum tree_index): Add TI_CHREC_DONT_KNOW and
        TI_CHREC_KNOWN.
        * tree.h (chrec_not_analyzed_yet, chrec_dont_know, chrec_known):
        Define here.
        * tree.c (build_common_tree_nodes): Initialize them.
        * tree-chrec.h (chrec_not_analyzed_yet, chrec_dont_know, chrec_known):
        Make declarations comments.
        * tree-scalar-evolution.c (chrec_not_analyzed_yet, chrec_dont_know,
        chrec_known): Remove definitions.
        (initialize_scalar_evolutions_analyzer): Remove.
        (scev_initialize): Do not call initialize_scalar_evolutions_analyzer.
        * tree-streamer.c (preload_common_nodes): Do not preload
        TI_CHREC_DONT_KNOW or TI_CHREC_KNOWN.

2019-07-02  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-alias.c (aliasing_component_refs_p): Remove forgotten
        sanity check.

2019-07-02  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-alias.c (nonoverlapping_component_refs_for_decl_p): Rename
        to ..
        (nonoverlapping_component_refs_since_match_p): ... this one;
        handle also non-decl bases; return -1 if search gave up.
        (alias_stats): Rename nonoverlapping_component_refs_of_decl_p_may_alias,
        nonoverlapping_component_refs_of_decl_p_no_alias to
        nonoverlapping_component_refs_since_match_p_may_alias,
        nonoverlapping_component_refs_since_match_p_no_alias.
        (dump_alias_stats): Update dumping.
        (aliasing_matching_component_refs_p): Break out from ...;
        dispatch to nonoverlapping_component_refs_for_decl_p
        and nonoverlapping_component_refs_since_match_p.
        (aliasing_component_refs_p): ... here; call
        nonoverlapping_component_refs_p in scenarios where we can not
        precisely determine base match.
        (decl_refs_may_alias_p): Use
        nonoverlapping_component_refs_since_match_p.
        (indirect_ref_may_alias_decl_p): Do not call
        nonoverlapping_component_refs_p.
        (indirect_refs_may_alias_p): Likewise.

2019-07-02  Jan Hubicka  <jh@suse.cz>

        * tree-inline.c (remap_gimple_stmt): Do not subtitute handled components
        to clobber of return value.

2019-07-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/cortex-a57.md (cortex_a57_neon_type): Use neon_arith_basic
        for is_neon_type instructions that have not already been categorized.

2019-07-02  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/58483
        * tree-ssa-scopedtables.c (avail_expr_hash): Use OEP_ADDRESS_OF
        for MEM_REF base hashing.
        (equal_mem_array_ref_p): Likewise for base comparison.

2019-07-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (signbit<mode>2_dm): Make this a
        parameterized name.
        (signbit<mode>2): Use that name.  Simplify.

2019-07-01  Joern Rennecke  <joern.rennecke@riscy-ip.com>

        PR middle-end/66726
        * tree-ssa-phiopt.c (factor_out_conditional_conversion):
        Tune heuristic from PR71016 to allow MIN / MAX.

2019-07-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (ieee_128bit_vsx_abs<mode>2): Make this a
        parameterized name.
        (abs<mode>2): Use that name.  Simplify.

2019-07-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (ieee_128bit_vsx_neg<mode>2): Make this a
        parameterized name.
        (neg<mode>2): Use that name.  Simplify.

2019-07-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (abs<mode>2_hw): Make this a parameterized
        name.
        (abs<mode>2): Use that name.  Simplify.

2019-07-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (neg<mode>2_hw): Make this a parameterized
        name.
        (neg<mode>2): Use that name.  Simplify.

2019-07-01  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md ("isa" attribute): Add sse_noavx.
        ("enabled" attribute): Handle sse_noavx isa attribute.
        * config/i386/mmx.md (*vec_dupv2sf): Add "isa" attribute.
        Use TARGET_SSE && SSE_REGNO_P in split condition.
        (*vec_dupv2sf): Ditto.

2019-07-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (extenddf<mode>2): Make this a parameterized
        name.
        (floatsi<mode>2): Use that name.  Simplify.

2019-07-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (extenddf<mode>2_fprs): Make this a
        parameterized name.
        (extenddf<mode>2_vsx): Make this a parameterized name.
        (extenddf<mode>2): Use those names.  Simplify.

2019-07-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (eh_set_lr_<mode>): Make this a parameterized
        name.
        (eh_return): Use that name.  Simplify.

2019-07-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (ctr<mode>): Make this a parameterized name.
        (doloop_end): Use that name.  Simplify.

2019-07-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (indirect_jump<mode>_nospec): Make this a
        parameterized name.
        (indirect_jump): Use that name.  Simplify.

2019-07-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (abs<mode>2_internal): Make this a
        parameterized name.
        (abs<mode>2): Use that name.  Simplify.

2019-07-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (fix_trunc<mode>si2_fprs): Make this a
        parameterized name.
        (fix_trunc<mode>si2): Use that name.  Simplify.

2019-07-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (neg<mode>2): Make this a parameterized name.
        (allocate_stack): Use that name.  Simplify.

2019-07-01  Martin Sebor  <msebor@redhat.com>

        PR middle-end/90923
        * hash-map.h (hash_map::put): On insertion invoke element ctor.
        (hash_map::get_or_insert): Same.  Reformat comment.
        * hash-set.h (hash_set::add): On insertion invoke element ctor.
        * hash-map-tests.c (test_map_of_type_with_ctor_and_dtor): New.
        * hash-set-tests.c (test_map_of_type_with_ctor_and_dtor): New.
        * hash-table.h (hash_table::operator=): Prevent copy assignment.
         (hash_table::hash_table (const hash_table&)): Use copy ctor
         instead of assignment to copy elements.

2019-07-01  Wilco Dijkstra  <wdijkstr@arm.com>
            John David Anglin  <danglin@gcc.gnu.org>

        PR target/90963
        * config/pa/pa.md (builtin_longjmp): Restore hard_frame_pointer_rtx
        using saved frame pointer.

2019-07-01  Eric Botcazou  <ebotcazou@adacore.com>

        PR middle-end/64242
        * config/sparc/sparc.md (nonlocal_goto): Restore frame pointer last.
        Add frame clobber and schedule blockage.

2019-07-01  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi (Link Options): Further editorial changes to
        -flinker-output docs.

2019-07-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (rs6000_force_indexed_or_indirect_mem):
        Load both operands of a PLUS into registers separately.

2019-07-01  Andreas Krebbel  <krebbel@linux.ibm.com>

        * config/s390/vector.md: Fix shift count operand printing.

2019-07-01  Richard Sandiford  <richard.sandiford@arm.com>

        * ira-lives.c (process_bb_node_lives): Use ira_setup_alts.

2019-07-01  Richard Sandiford  <richard.sandiford@arm.com>

        * ira.c (ira_get_dup_out_num): Don't punt for earlyclobbers.
        Use recog_data to test for an output operand.

2019-07-01  Richard Sandiford  <richard.sandiford@arm.com>

        * ira.c (ira_setup_alts): If any valid alternatives have zero cost,
        exclude any others that are disparaged or that are bound to need
        a reload or spill.
        (ira_get_dup_out_num): Expand comment.

2019-07-01  Richard Sandiford  <richard.sandiford@arm.com>

        * ira.c (ira_setup_alts): Use preprocess_constraints to get the
        constraint string for each operand/alternative combo.  Only handle
        '%' at the start of constraint strings, and look for it outside
        the main loop.

2019-07-01  Richard Sandiford  <richard.sandiford@arm.com>

        * ira-int.h (ira_setup_alts, ira_get_dup_out_num): Use
        alternative_mask instead of HARD_REG_SET to represent a
        bitmask of alternatives.
        * ira.c (ira_setup_alts, ira_get_dup_out_num): Likewise.
        * ira-conflicts.c (add_insn_allocno_copies): Likewise.

2019-07-01  Martin Liska  <mliska@suse.cz>

        * edit-context.c (test_applying_fixits_unreadable_file): Do not
        use () for a constructor call.
        (test_applying_fixits_line_out_of_range): Likewise.
        * ggc-page.c (alloc_page): Use (void *) for %p printf format
        argument.
        (free_page): Likewise.

2019-07-01  Vladislav Ivanishin  <vlad@ispras.ru>

        * gdbhooks.py (GdbPrettyPrinters.add_printer_for_types): Reorder
        parameter names to match usage (no functional change).
        (GdbPrettyPrinters.add_printer_for_regex): Ditto.

2019-07-01  Richard Biener  <rguenther@suse.de>

        * tree-ssa-sccvn.c (class pass_fre): Add may_iterate
        pass parameter.
        (pass_fre::execute): Honor it.
        * passes.def: Adjust pass_fre invocations to allow iterating,
        add non-iterating pass_fre before late threading/dom.

2019-07-01  Richard Biener  <rguenther@suse.de>

        * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Adjust
        TARGET_MEM_REF handling to also handle address-taken ones.

2019-07-01  Hongtao Liu  <hongtao.liu@intel.com>

        * doc/sourcebuild.texi (Effective-Target Keywords, Other
        hardware attributes): Document avx512vp2intersect.

2019-06-30  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (ssse3_abs<mode>2): Rename from abs<mode>2.
        (abs<mode>2): New expander.
        * config/i386/i386-builtin.def (__builtin_ia32_pabsb):
        Use CODE_FOR_ssse3_absv8qi2.
        (__builtin_ia32_pabsw): Use CODE_FOR_ssse3_absv4hi2.
        (__builtin_ia32_pabsd): Use CODE_FOR_ssse3_absv2si2.

2019-06-30  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (mmx_isa): Rename x64, x64_noavx and x64_avx
        to sse, sse_noavx and avx.  Update all uses.

2019-06-30  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/mmx.md (sse_movntq): Add "isa" attribute.
        (*mmx_<plusminus_insn><mode>3): Ditto.
        (*mmx_mulv4hi3"): Ditto.
        (*mmx_smulv4hi3_highpart): Ditto.
        (*mmx_umulv4hi3_highpart): Ditto.
        (*mmx_pmaddwd): Ditto.
        (*sse2_umulv1siv1di3): Ditto.
        (*mmx_<code>v4hi3): Ditto.
        (*mmx_<code>v8qi3): Ditto.
        (mmx_ashr<mode>3): Ditto.
        ("mmx_<shift_insn><mode>3): Ditto.
        (*mmx_eq<mode>3): Ditto.
        (mmx_gt<mode>3): Ditto.
        (mmx_andnot<mode>3): Ditto.
        (*mmx_<code><mode>3): Ditto.
        (*mmx_pinsrw): Ditto.
        (*mmx_pextrw): Ditto.
        (mmx_pshufw_1): Ditto.
        (*mmx_uavgv8qi3): Ditto.
        (*mmx_uavgv4hi3): Ditto.
        ("mmx_psadbw): Ditto.
        * config/i386/sse.md (sse_cvtps2pi): Ditto.
        (sse_cvttps2pi): Ditto.
        (ssse3_pmaddubsw): Ditto.
        (*ssse3_pmulhrswv4hi3): Ditto.
        (ssse3_psign<mode>3): Ditto.

2019-06-29  Eric Botcazou  <ebotcazou@adacore.com>

        * expr.c (expand_expr_real_1) <BIT_FIELD_REF>: Apply the big-endian
        adjustment for bit-fields to all aggregate types.

2019-06-28   Michael Meissner  <meissner@linux.ibm.com>

        * config/rs6000/predicates.md (pcrel_address): Use
        SYMBOL_REF_LOCAL_P to determine if a label is local.
        (pcrel_external_address): New predicate.
        (non_prefixed_mem_operand): Delete, predicate not used.
        * config/rs6000/rs6000.h (SYMBOL_FLAG_PCREL_P): Delete, we now use
        SYMBOL_REF_LOCAL_P to determine if we can use pc-relative
        addressing.
        (SYMBOL_REF_PCREL_P): Likewise.

        PR target/91009
        * config/rs6000/rs6000.md (floatsi<mode>2_lfiwax): Add non-VSX
        alternative.
        (floatsi<mode>2_lfiwax_mem): Add non-VSX alternative.
        (floatunssi<mode>2_lfiwzx): Add non-VSX alternative.
        (floatunssi<mode>2_lfiwzx_mem): Add non-VSX alternative.

2019-06-28  Iain Sandoe  <iain@sandoe.co.uk>

        * config.gcc (powerpc-*-darwin*, powerpc64-*-darwin*): Remove
        override on extra_headers.

2019-06-28  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin-c.c (pop_field_alignment): Quote #pragma options.
        * config/darwin-driver.c (darwin_default_min_version): Remove newline
        from warning.
        (darwin_driver_init): Likewise.

2019-06-28  Jan Beulich  <jbeulich@suse.com>

        * config/i386/sse.md (vgf2p8affineinvqb_<mode><mask_name>,
        vgf2p8affineqb_<mode><mask_name>, vgf2p8mulb_<mode><mask_name>):
        Eliminate redundant alternative.

2019-06-28  Jan Beulich  <jbeulich@suse.com>

        * config/i386/sse.md (vgf2p8affineinvqb_<mode><mask_name>,
        vgf2p8affineqb_<mode><mask_name>): Drop % constraint modifier.
        Use vector_operand.

2019-06-28  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_rtx_costs): All short instructions are
        having a lower cost regardless of the speed option.

2019-06-28  Jan Beulich  <jbeulich@suse.com>

        * config/i386/sse.md (sse2_cvtpd2pi, sse2_cvttpd2pi): Use
        vector_operand plus, on both alternatives, "Bm" constraint.

2019-06-28  Dennis Zhang  <dennis.zhang@arm.com>

        * config/arm/arm.md: Remove redundant constraints from
        define_expand but leave reload_inm and reload_outm patterns
        untouched since they need special constraints to work.
        * config/arm/arm-fixed.md: Remove redundant constraints from
        define_expand.
        * config/arm/iwmmxt.md: Likewise.
        * config/arm/neon.md: Likewise.
        * config/arm/sync.md: Likewise.
        * config/arm/thumb1.md: Likewise.
        * config/arm/vec-common.md: Likewise.

2019-06-27  Ilia Diachkov  <ilia.diachkov@optimitech.com>

        * doc/install.texi: Document --disable-tm-clone-registry.

2019-06-27  Jakub Jelinek  <jakub@redhat.com>

        PR c++/91024
        * gimplify.c (collect_fallthrough_labels): Ignore GIMPLE_PREDICT
        statements.

        PR tree-optimization/91010
        * tree-vect-stmts.c (scan_operand_equal_p): If offset1 == offset2,
        return true.  Otherwise, don't call operand_equal_p if offset1 or
        offset2 is NULL and just return false.

2019-06-27  Iain Sandoe  <iain@sandoe.co.uk>

        * config/rs6000/rs6000.c (darwin_rs6000_override_options): Honour
        user-specified float mode choice for kernel mode code.

2019-06-27  Iain Sandoe  <iain@sandoe.co.uk>

        * config/rs6000/darwin.h (ENDFILE_SPEC): Correct whitespace in the
        spec.

2019-06-27  Iain Sandoe  <iain@sandoe.co.uk>

        * config/rs6000/rs6000.c (darwin_rs6000_override_options): Do not
        use longcall for 64b code.

2019-06-27  Aaron Sawdey  <acsawdey@linux.ibm.com>

        * builtins.c (get_memory_rtx): Fix comment.
        * optabs.def (movmem_optab): Change to cpymem_optab.
        * expr.c (emit_block_move_via_cpymem): Change movmem to cpymem.
        (emit_block_move_hints): Change movmem to cpymem.
        * defaults.h: Change movmem to cpymem.
        * targhooks.c (get_move_ratio): Change movmem to cpymem.
        (default_use_by_pieces_infrastructure_p): Ditto.
        * config/aarch64/aarch64-protos.h: Change movmem to cpymem.
        * config/aarch64/aarch64.c (aarch64_expand_movmem): Change movmem
        to cpymem.
        * config/aarch64/aarch64.h: Change movmem to cpymem.
        * config/aarch64/aarch64.md (movmemdi): Change name to cpymemdi.
        * config/alpha/alpha.h: Change movmem to cpymem in comment.
        * config/alpha/alpha.md (movmemqi, movmemdi, *movmemdi_1): Change
        movmem to cpymem.
        * config/arc/arc-protos.h: Change movmem to cpymem.
        * config/arc/arc.c (arc_expand_movmem): Change movmem to cpymem.
        * config/arc/arc.h: Change movmem to cpymem in comment.
        * config/arc/arc.md (movmemsi): Change movmem to cpymem.
        * config/arm/arm-protos.h: Change movmem to cpymem in names.
        * config/arm/arm.c (arm_movmemqi_unaligned, arm_gen_movmemqi,
        gen_movmem_ldrd_strd, thumb_expand_movmemqi) Change movmem to cpymem.
        * config/arm/arm.md (movmemqi): Change movmem to cpymem.
        * config/arm/thumb1.md (movmem12b, movmem8b): Change movmem to cpymem.
        * config/avr/avr-protos.h: Change movmem to cpymem.
        * config/avr/avr.c (avr_adjust_insn_length, avr_emit_movmemhi,
        avr_out_movmem): Change movmem to cpymem.
        * config/avr/avr.md (movmemhi, movmem_<mode>, movmemx_<mode>):
        Change movmem to cpymem.
        * config/bfin/bfin-protos.h: Change movmem to cpymem.
        * config/bfin/bfin.c (single_move_for_movmem, bfin_expand_movmem):
        Change movmem to cpymem.
        * config/bfin/bfin.h: Change movmem to cpymem in comment.
        * config/bfin/bfin.md (movmemsi): Change name to cpymemsi.
        * config/c6x/c6x-protos.h: Change movmem to cpymem.
        * config/c6x/c6x.c (c6x_expand_movmem): Change movmem to cpymem.
        * config/c6x/c6x.md (movmemsi): Change name to cpymemsi.
        * config/frv/frv.md (movmemsi): Change name to cpymemsi.
        * config/ft32/ft32.md (movmemsi): Change name to cpymemsi.
        * config/h8300/h8300.md (movmemsi): Change name to cpymemsi.
        * config/i386/i386-expand.c (expand_set_or_movmem_via_loop,
        expand_set_or_movmem_via_rep, expand_movmem_epilogue,
        expand_setmem_epilogue_via_loop, expand_set_or_cpymem_prologue,
        expand_small_cpymem_or_setmem,
        expand_set_or_cpymem_prologue_epilogue_by_misaligned_moves,
        expand_set_or_cpymem_constant_prologue,
        ix86_expand_set_or_cpymem): Change movmem to cpymem.
        * config/i386/i386-protos.h: Change movmem to cpymem.
        * config/i386/i386.h: Change movmem to cpymem in comment.
        * config/i386/i386.md (movmem<mode>): Change name to cpymem.
        (setmem<mode>): Change expansion function name.
        * config/lm32/lm32.md (movmemsi): Change name to cpymemsi.
        * config/m32c/blkmov.md (movmemhi, movmemhi_bhi_op, movmemhi_bpsi_op,
        movmemhi_whi_op, movmemhi_wpsi_op): Change movmem to cpymem.
        * config/m32c/m32c-protos.h: Change movmem to cpymem.
        * config/m32c/m32c.c (m32c_expand_movmemhi): Change movmem to cpymem.
        * config/m32r/m32r.c (m32r_expand_block_move): Change movmem to cpymem.
        * config/m32r/m32r.md (movmemsi, movmemsi_internal): Change movmem
        to cpymem.
        * config/mcore/mcore.md (movmemsi): Change name to cpymemsi.
        * config/microblaze/microblaze.c: Change movmem to cpymem in comment.
        * config/microblaze/microblaze.md (movmemsi): Change name to cpymemsi.
        * config/mips/mips.c (mips_use_by_pieces_infrastructure_p):
        Change movmem to cpymem.
        * config/mips/mips.h: Change movmem to cpymem.
        * config/mips/mips.md (movmemsi): Change name to cpymemsi.
        * config/nds32/nds32-memory-manipulation.c
        (nds32_expand_movmemsi_loop_unknown_size,
        nds32_expand_movmemsi_loop_known_size, nds32_expand_movmemsi_loop,
        nds32_expand_movmemsi_unroll,
        nds32_expand_movmemsi): Change movmem to cpymem.
        * config/nds32/nds32-multiple.md (movmemsi): Change name to cpymemsi.
        * config/nds32/nds32-protos.h: Change movmem to cpymem.
        * config/pa/pa.c (compute_movmem_length): Change movmem to cpymem.
        (pa_adjust_insn_length): Change call to compute_movmem_length.
        * config/pa/pa.md (movmemsi, movmemsi_prereload, movmemsi_postreload,
        movmemdi, movmemdi_prereload,
        movmemdi_postreload): Change movmem to cpymem.
        * config/pdp11/pdp11.md (movmemhi, movmemhi1,
        movmemhi_nocc, UNSPEC_MOVMEM): Change movmem to cpymem.
        * config/riscv/riscv.c: Change movmem to cpymem in comment.
        * config/riscv/riscv.h: Change movmem to cpymem.
        * config/riscv/riscv.md: (movmemsi) Change name to cpymemsi.
        * config/rs6000/rs6000.md: (movmemsi) Change name to cpymemsi.
        * config/rx/rx.md: (UNSPEC_MOVMEM, movmemsi, rx_movmem): Change
        movmem to cpymem.
        * config/s390/s390-protos.h: Change movmem to cpymem.
        * config/s390/s390.c (s390_expand_movmem, s390_expand_setmem,
        s390_expand_insv): Change movmem to cpymem.
        * config/s390/s390.md (movmem<mode>, movmem_short, *movmem_short,
        movmem_long, *movmem_long, *movmem_long_31z): Change movmem to cpymem.
        * config/sh/sh.md (movmemsi): Change name to cpymemsi.
        * config/sparc/sparc.h: Change movmem to cpymem in comment.
        * config/vax/vax-protos.h (vax_output_movmemsi): Remove prototype
        for nonexistent function.
        * config/vax/vax.h: Change movmem to cpymem in comment.
        * config/vax/vax.md (movmemhi, movmemhi1): Change movmem to cpymem.
        * config/visium/visium.h: Change movmem to cpymem in comment.
        * config/visium/visium.md (movmemsi): Change name to cpymemsi.
        * config/xtensa/xtensa.md (movmemsi): Change name to cpymemsi.
        * doc/md.texi: Change movmem to cpymem and update description to match.
        * doc/rtl.texi: Change movmem to cpymem.
        * target.def (use_by_pieces_infrastructure_p): Change movmem to cpymem.
        * doc/tm.texi: Regenerate.

2019-06-27  Bill Schmidt  <wschmidt@linux.ibm.com>

        * config/rs6000/rs6000.c (rs6000_option_override_internal): Enable
        -fvariable-expansion-in-unroller by default.
        * doc/invoke.texi (-fvariable-expansion-in-unroller): Document new
        default for Power.

2019-06-27  David Edelsohn  <dje.gcc@gmail.com>

        Revert
        2019-06-26  David Edelsohn  <dje.gcc@gmail.com>
        * config.gcc (powerpc-ibm-aix*): Define target_gtfiles.

        * config.gcc(rs6000-*-*): Define target_gtfiles.

2019-06-27  Jan Hubicka  <jh@suse.cz>

        * ipa-devirt.c (odr_type_d): Add tbaa_enabled flag.
        (add_type_duplicate): When odr hash is not allocated, to nothing.
        (odr_based_tbaa_p): New function.
        (set_type_canonical_for_odr_type): New function.
        * ipa-utils.h (enable_odr_based_tbaa, odr_based_tbaa_p,
        set_type_canonical_for_odr_type): New.
        * tree.c (gimple_canonical_types_compatible_p): ODR types with
        ODR based TBAA are not equivalent to non-ODR types.

2019-06-27  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/90974
        PR rtl-optimization/90975
        PR rtl-optimization/90976
        PR target/91016
        PR tree-optimization/91017
        * config/i386/i386-expand.c (ix86_expand_rounddf_32): Remove
        unused tmp.
        * lra.c (lra_set_insn_recog_data): Remove a leftover from
        initial commit of IRA.
        * optabs.c (expand_twoval_binop): Use xop0 and xop1 instead
        of op0 and op1.
        * tree-vect-loop.c (vect_create_epilog_for_reduction):
        Remove unused mode1.
        * tree-vect-stmts.c (vectorizable_call): Remove dead assignment
        to new_stmt_info.

2019-06-27  Jakub Jelinek  <jakub@redhat.com>

        PR target/90991
        * config/i386/sse.md (avx_vec_concat<mode>): Use nonimmediate_operand
        instead of register_operand for operands[1], add m to its constraints
        if operands[2] uses "C" constraint.  Ensure in condition that if
        operands[2] is not 0, then operands[1] is not a MEM.  For last two
        alternatives, use unaligned loads instead of aligned if operands[1] is
        misaligned_operand.

2019-06-27  Martin Liska  <mliska@suse.cz>

        * asan.c (asan_emit_allocas_unpoison): Remove obviously
        dead assignments.
        * bt-load.c (move_btr_def): Likewise.
        * builtins.c (expand_builtin_apply_args_1): Likewise.
        (expand_builtin_apply): Likewise.
        * cfgexpand.c (expand_asm_stmt): Likewise.
        (construct_init_block): Likewise.
        * cfghooks.c (verify_flow_info): Likewise.
        * cfgloopmanip.c (remove_path): Likewise.
        * cfgrtl.c (rtl_verify_bb_layout): Likewise.
        * cgraph.c (cgraph_node::set_pure_flag): Likewise.
        * combine.c (simplify_if_then_else): Likewise.
        * config/i386/i386.c (ix86_setup_incoming_vararg_bounds): Likewise.
        (choose_basereg): Likewise.
        (ix86_expand_prologue): Likewise.
        (ix86_preferred_output_reload_class): Likewise.
        * cselib.c (cselib_record_sets): Likewise.
        * df-scan.c (df_scan_alloc): Likewise.
        * dojump.c (do_jump_by_parts_greater_rtx): Likewise.
        * early-remat.c (early_remat::record_equiv_candidates): Likewise.
        * emit-rtl.c (try_split): Likewise.
        * graphite-scop-detection.c (assign_parameter_index_in_region):
        Likewise.
        * ipa-cp.c (cgraph_edge_brings_all_agg_vals_for_node): Likewise.
        * ira-color.c (setup_profitable_hard_regs): Likewise.
        * ira.c (rtx_moveable_p): Likewise.
        * lra-eliminations.c (eliminate_regs_in_insn): Likewise.
        * read-rtl.c (read_subst_mapping): Likewise.
        * regrename.c (scan_rtx): Likewise.
        * reorg.c (fill_slots_from_thread): Likewise.
        * tree-inline.c (tree_function_versioning): Likewise.
        * tree-ssa-reassoc.c (optimize_ops_list): Likewise.
        * tree-ssa-sink.c (statement_sink_location): Likewise.
        * tree-ssa-threadedge.c (thread_across_edge): Likewise.
        * tree-vect-loop.c (vect_get_loop_niters): Likewise.
        (vect_create_epilog_for_reduction): Likewise.
        * tree.c (build_nonstandard_integer_type): Likewise.

2019-06-27  Richard Biener  <rguenther@suse.de>

        * tree-ssa-sccvn.c (vn_reference_lookup_3): Encode valueized RHS.

2019-06-27  Jun Ma  <JunMa@linux.alibaba.com>

        PR tree-optimization/89772
        * gimple-fold.c (gimple_fold_builtin_memchr): consider trailing nuls in
        out-of-bound accesses checking.

2019-06-27  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/91014
        * tree-ssa-dse.c (initialize_ao_ref_for_dse): Bail out
        when LHS is NULL_TREE.

2019-06-27  Martin Liska  <mliska@suse.cz>

        * symbol-summary.h (traverse): Pass
        argument a to the call of callback.
        (gt_ggc_mx): Mark arguments as unused.
        (gt_pch_nx): Likewise.

2019-06-27  Kewen Lin  <linkw@gcc.gnu.org>

        PR target/62147
        * loop-iv.c (find_simple_exit): Call finite_loop_p to update
        finiteness.

2019-06-26  Jeff Law  <law@redhat.com>

        PR tree-optimization/90883
        * tree-ssa-dse.c (delete_dead_or_redundant_call): Fix signature.
        (delete_dead_or_redundant_assignment): Likewise.

        PR tree-optimization/90883
        * tree-ssa-alias.c (stmt_kills_ref_p): Handle BUILT_IN_CALLOC.
        * tree-ssa-dse.c: Update various comments to distinguish between
        dead and redundant stores.
        (initialize_ao_ref_for_dse): Handle BUILT_IN_CALLOC.
        (dse_optimize_redundant_stores): New function.
        (delete_dead_or_redundant_call): Renamed from delete_dead_call.
        Distinguish between dead and redundant calls in dump output.  All
        callers updated.
        (delete_dead_or_redundant_assignment): Similarly for assignments.
        (dse_optimize_stmt): Handle _CHK variants.  For statements which
        store 0 into multiple memory locations, try to prove a subsequent
        store is redundant.

2019-06-26  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/89021
        * config/i386/i386.c (ix86_autovectorize_vector_sizes):
        Autovectorize 8-byte vectors for TARGET_MMX_WITH_SSE.

2019-06-26  Iain Sandoe  <iain@sandoe.co.uk>

        * config/rs6000/rs6000-internal.h (branch_island): New typedef.
        (branch_islands): New extern.
        * config/rs6000/rs6000-logue.c (macho_branch_islands): Moved from
        * config/rs6000/rs6000.c: .. here.

2019-06-26  Iain Sandoe  <iain@sandoe.co.uk>

        * config.gcc (powerpc*-*-linux*): Move target_gtfiles from here..
        (powerpc*-*-*) ... to here.

2019-06-26  Jeff Law  <law@redhat.com>

        * tree-ssa-dse.c (initialize_ao_ref_for_dse): Handle _chk variants of
        memcpy, memmove and memset builtins.
        (maybe_trim_memstar_call): Likewise.

2019-06-26  David Edelsohn  <dje.gcc@gmail.com>

        * config/rs6000/rs6000-logue.c: Add #ifndef TARGET_PROFILE_KERNEL.

2019-06-26  David Edelsohn  <dje.gcc@gmail.com>

        * config.gcc (powerpc-ibm-aix*): Define target_gtfiles.

2019-06-26  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000-internal.h (rs6000_keep_leaf_when_profiled): New
        declaration.
        * config/rs6000/rs6000-logue.c (rs6000_keep_leaf_when_profiled): Remove
        "static".
        * config/rs6000/rs6000-logue.c (rs6000_keep_leaf_when_profiled): Delete
        declaration.

2019-06-26  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c: Fix previous commit, it missed some changes.

2019-06-26  Richard Biener  <rguenther@suse.de>

        PR ipa/90982
        * tree-inline.c (remap_ssa_name): Copy SSA range info.

2019-06-26  Richard Biener  <rguenther@suse.de>

        * lto-streamer.h (lto_bitmap_alloc): Remove.
        (lto_bitmap_free): Likewise.
        * lto-streamer.c (lto_bitmap_alloc): Remove.
        (lto_bitmap_free): Likewise.
        (lto_obstack): Likewise.
        (lto_obstack_initialized): Likewise.
        * lto-streamer-out.c (lto_output): Use own obstack for local
        bitmap, free it consistently.

2019-06-26  Jakub Jelinek  <jakub@redhat.com>

        PR target/90991
        * config/i386/sse.md
        (*<extract_type>_vinsert<shuffletype><extract_suf>_0): Use vmovupd,
        vmovups, vmovdqu, vmovdqu32 or vmovdqu64 instead of the aligned
        insns if operands[2] is misaligned_operand.

2019-06-26  Li Jia He  <helijia@linux.ibm.com>

        * config/rs6000/rs6000.h (TARGET_MADDLD): Remove the restriction of
        TARGET_POWERPC64.
        * config/rs6000/rs6000.md (maddld): Change maddld match_operand from DI
        to GPR.

2019-06-26  Segher Boessenkool  <segher@kernel.crashing.org>

        * doc/invoke.texi (Warning Options): Fix some @opindex syntax.

2019-06-26  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/90973
        * tree-vect-loop.c (vect_get_known_peeling_cost): Use
        epilogue_cost_vec instead of prologue_cost_vec for
        a epilogue cost.

2019-06-26  Martin Liska  <mliska@suse.cz>

        * bb-reorder.c (connect_better_edge_p): Add missing else
        statement in the middle of if-else statements.

2019-06-25  Hongtao Liu  <hongtao.liu@intel.com>
            H.J. Lu  <hongjiu.lu@intel.com>
            Olga Makhotina  <olga.makhotina@intel.com>

        * common/config/i386/i386-common.c
        (OPTION_MASK_ISA_AVX512VP2INTERSECT_SET,
        OPTION_MASK_ISA_AVX512VP2INTERSECT_UNSET): New macros.
        (OPTION_MASK_ISA2_AVX512F_UNSET): Add
        OPTION_MASK_ISA_AVX512VP2INTERSECT_UNSET.
        (ix86_handle_option): Handle -mavx512vp2intersect.
        * config/i386/avx512vp2intersectintrin.h: New.
        * config/i386/avx512vp2intersectvlintrin.h: New.
        * config/i386/cpuid.h (bit_AVX512VP2INTERSECT): New.
        * config/i386/driver-i386.c (host_detect_local_cpu): Detect
        AVX512VP2INTERSECT.
        * config/i386/i386-builtin-types.def: Add new types.
        * config/i386/i386-builtin.def: Add new builtins.
        * config/i386/i386-builtins.c: (enum processor_features): Add
        F_AVX512VP2INTERSECT.
        (static const _isa_names_table isa_names_table): Ditto.
        * config/i386/i386-c.c (ix86_target_macros_internal): Define
        __AVX512VP2INTERSECT__.
        * config/i386/i386-expand.c (ix86_expand_builtin): Expand
        IX86_BUILTIN_2INTERSECTD512, IX86_BUILTIN_2INTERSECTQ512,
        IX86_BUILTIN_2INTERSECTD256, IX86_BUILTIN_2INTERSECTQ256,
        IX86_BUILTIN_2INTERSECTD128, IX86_BUILTIN_2INTERSECTQ128.
        * config/i386/i386-modes.def (P2QI, P2HI): New modes.
        * config/i386/i386-options.c (ix86_target_string): Add
        -mavx512vp2intersect.
        (ix86_option_override_internal): Handle AVX512VP2INTERSECT.
        * config/i386/i386.c (ix86_hard_regno_nregs): Allocate two regs for
        P2HImode and P2QImode.
        (ix86_hard_regno_mode_ok): Register pair only starts at even hardreg
        number for P2QImode and P2HImode.
        (ix86_regmode_natural_size): New function.
        * config/i386/i386.h (TARGET_AVX512VP2INTERSECT,
        TARGET_AVX512VP2INTERSECT_P, PTA_AVX512VP2INTERSECT
        REGMODE_NATURAL_SIZE, MASK_PAIR_REGNO_P): New.
        * config/i386/i386-protos.h (ix86_regmode_natural_size): Declare
        * config/i386/i386.opt: Add -mavx512vp2intersect.
        * config/i386/immintrin.h: Include avx512vp2intersectintrin.h and
        avx512vp2intersectvlintrin.h.
        * config/i386/sse.md (define_c_enum "unspec"): Add UNSPEC_VP2INTERSECT.
        (define_mode_iterator VI48_AVX512VP2VL): New.
        (avx512vp2intersect_2intersect<mode>,
        avx512vp2intersect_2intersectv16si): New define_insn patterns.
        * config.gcc: Add avx512vp2intersectvlintrin.h and
        avx512vp2intersectintrin.h to extra_headers.
        * doc/invoke.texi: Document -mavx512vp2intersect.

2019-06-25  Iain Sandoe  <iain@sandoe.co.uk>

        * config/rs6000/darwin.h (ENDFILE_SPEC): New.

2019-06-25  Bill Seurer  <seurer@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (stack_info, rs6000_pic_labelno,
        savres_routine_syms, savres_routine_name, morestack_ref,
        rs6000_init_machine_status, save_reg_p, first_reg_to_save,
        first_fp_reg_to_save, first_altivec_reg_to_save, compute_vrsave_mask,
        compute_save_world_info, is_altivec_return_reg, fixed_reg_p,
        rs6000_savres_strategy, rs6000_stack_info, debug_stack_info,
        rs6000_return_addr, rs6000_decl_ok_for_sibcall,
        rs6000_function_ok_for_sibcall, rs6000_ra_ever_killed,
        rs6000_emit_load_toc_table, rs6000_emit_eh_reg_restore, uses_TOC,
        create_TOC_reference, rs6000_aix_asm_output_dwarf_table_ref,
        rs6000_emit_stack_tie, rs6000_emit_allocate_stack_1,
        get_stack_clash_protection_probe_interval,
        get_stack_clash_protection_guard_size,
        rs6000_emit_probe_stack_range_stack_clash, rs6000_emit_allocate_stack,
        rs6000_emit_probe_stack_range, output_probe_stack_range_1,
        interesting_frame_related_regno, output_probe_stack_range_stack_clash,
        output_probe_stack_range, rs6000_frame_related, generate_set_vrsave,
        gen_frame_set, gen_frame_load, gen_frame_store, emit_frame_save,
        gen_frame_mem_offset, rs6000_savres_routine_name,
        rs6000_savres_routine_sym, rs6000_emit_stack_reset,
        ptr_regno_for_savres, rs6000_emit_savres_rtx,
        rs6000_emit_prologue_move_from_cr, split_stack_arg_pointer_used_p,
        rs6000_global_entry_point_prologue_needed_p,
        rs6000_get_separate_components, rs6000_components_for_bb,
        rs6000_disqualify_components, rs6000_emit_prologue_components,
        rs6000_emit_epilogue_components, rs6000_set_handled_components,
        emit_vrsave_prologue, emit_split_stack_prologue, rs6000_emit_prologue,
        rs6000_output_savres_externs, rs6000_output_function_prologue,
        rs6000_keep_leaf_when_profiled, load_cr_save, restore_saved_cr,
        load_lr_save, restore_saved_lr, add_crlr_cfa_restore,
        offset_below_red_zone_p, emit_cfa_restores, rs6000_emit_epilogue,
        rs6000_output_function_epilogue, gen_add3_const,
        rs6000_expand_split_stack_prologue, rs6000_live_on_entry,
        rs6000_split_stack_space_check, rs6000_save_toc_in_prologue_p): Moved
        to rs6000-logue.c.
        (machine_function): Moved to rs6000.h.
        (rs6000_stack_t, ALTIVEC_REG_BIT, quad_address_offset_p) Moved to
        rs6000-internal.h.
        * config/rs6000/rs6000-logue.c(stack_info, rs6000_pic_labelno,
        savres_routine_syms, savres_routine_name, morestack_ref,
        rs6000_init_machine_status, save_reg_p, first_reg_to_save,
        first_fp_reg_to_save, first_altivec_reg_to_save, compute_vrsave_mask,
        compute_save_world_info, is_altivec_return_reg, fixed_reg_p,
        rs6000_savres_strategy, rs6000_stack_info, debug_stack_info,
        rs6000_return_addr, rs6000_decl_ok_for_sibcall,
        rs6000_function_ok_for_sibcall, rs6000_ra_ever_killed,
        rs6000_emit_load_toc_table, rs6000_emit_eh_reg_restore, uses_TOC,
        create_TOC_reference, rs6000_aix_asm_output_dwarf_table_ref,
        rs6000_emit_stack_tie, rs6000_emit_allocate_stack_1,
        get_stack_clash_protection_probe_interval,
        get_stack_clash_protection_guard_size,
        rs6000_emit_probe_stack_range_stack_clash, rs6000_emit_allocate_stack,
        rs6000_emit_probe_stack_range, output_probe_stack_range_1,
        interesting_frame_related_regno, output_probe_stack_range_stack_clash,
        output_probe_stack_range, rs6000_frame_related, generate_set_vrsave,
        gen_frame_set, gen_frame_load, gen_frame_store, emit_frame_save,
        gen_frame_mem_offset, rs6000_savres_routine_name,
        rs6000_savres_routine_sym, rs6000_emit_stack_reset,
        ptr_regno_for_savres, rs6000_emit_savres_rtx,
        rs6000_emit_prologue_move_from_cr, split_stack_arg_pointer_used_p,
        rs6000_global_entry_point_prologue_needed_p,
        rs6000_get_separate_components, rs6000_components_for_bb,
        rs6000_disqualify_components, rs6000_emit_prologue_components,
        rs6000_emit_epilogue_components, rs6000_set_handled_components,
        emit_vrsave_prologue, emit_split_stack_prologue, rs6000_emit_prologue,
        rs6000_output_savres_externs, rs6000_output_function_prologue,
        rs6000_keep_leaf_when_profiled, load_cr_save, restore_saved_cr,
        load_lr_save, restore_saved_lr, add_crlr_cfa_restore,
        offset_below_red_zone_p, emit_cfa_restores, rs6000_emit_epilogue,
        rs6000_output_function_epilogue, gen_add3_const,
        rs6000_expand_split_stack_prologue, rs6000_live_on_entry,
        rs6000_split_stack_space_check, rs6000_save_toc_in_prologue_p): Moved
        to here from rs6000.c.
        * config/rs6000/rs6000.h (machine_function): Moved to here from rs6000.c.
        * config/rs6000/rs6000-internal.h: (rs6000_stack_t, ALTIVEC_REG_BIT,
        quad_address_offset_p) Moved to here from rs6000.c.
        * config/rs6000/t-rs6000: Add new source file rs6000-logue.c.
        * config/config.gcc: Add new source file rs6000-logue.c to garbage
        collector.

2019-06-25  Martin Liska  <mliska@suse.cz>

        * hash-table.c (hashtab_chk_error): Move here from ...
        * hash-table.h (hashtab_chk_error): ... here.

2019-06-25  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/90978
        * df-scan.c (df_update_entry_block_defs): Remove dead else
        branch.
        (df_update_exit_block_uses): Likewise.

2019-06-25  Kwok Cheung Yeung  <kcy@codesourcery.com>
            Andrew Stubbs  <ams@codesourcery.com>

        * config.gcc (thread_file): Set to gcn for AMD GCN.
        * config/gcn/gcn.c (gcn_emutls_var_init): New function.
        (TARGET_EMUTLS_VAR_INIT): New hook.

2019-06-25  Martin Jambor  <mjambor@suse.cz>

        PR ipa/90939
        * ipa-cp.c (ipcp_bits_lattice::meet_with): Remove assert.

2019-06-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90930
        * tree-ssa-reassoc.c (reassociate_bb): Only rewrite expression
        into parallel form in the last pass instance.

2019-06-25  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_symbol_binds_local_p): New function.
        (arc_legitimize_pic_address): Simplify and cleanup the function.
        (SYMBOLIC_CONST): Remove.
        (prepare_pic_move): Likewise.
        (prepare_move_operands): Handle complex mov cases here.
        (arc_legitimize_address_0): Remove call to
        arc_legitimize_pic_address.
        (arc_legitimize_address): Remove call to
        arc_legitimize_tls_address.
        * config/arc/arc.md (movqi_insn): Allow Cm3 match.
        (movhi_insn): Likewise.

2019-06-25  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        * config/msp430/msp430.h: Use __int20__ for SIZE_TYPE and
        PTRDIFF_TYPE.
        * gimple-ssa-sprintf.c (build_intmax_type_nodes): Accept "__intN__"
        format of "__intN" types for UINTMAX_TYPE.
        * stor-layout.c (initialize_sizetypes): Accept "__intN__"
        format of "__intN" types for SIZETYPE.
        * tree.c (build_common_tree_nodes): Accept "__intN__"
        format of "__intN" types for SIZE_TYPE and PTRDIFF_TYPE.
        * doc/invoke.texi: Document that __intN__ disables pedantic
        warnings.

2019-06-25  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-alias.c (indirect_ref_may_alias_decl_p): Check that
        base2_alias_set is non-zero before doing TBAA based disambiguation.

2019-06-25  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/90973
        * tree-vect-loop.c (vect_get_known_peeling_cost): Sum retval
        of prologue and epilogue.

2019-06-24  Jan Hubicka  <jh@suse.cz>

        * ipa-utils.h (type_with_linkage_p): Verify that type is
        CXX_ODR_P.
        (odr_type_p): Remove extra return.
        * lto-streamer-out.c (hash_tree): Hash TYPE_CXX_ODR_P;
        hash STRING_FLAG only for arrays and integers.
        * tree-stremaer-in.c (unpack_ts_type_common_value_fields):
        Update analogously.
        * tree-streamer-out.c (pack_ts_type_common_value_fields):
        Likewise.
        * print-tree.c (print_node): Print cxx-odr-p
        and string-flag.
        * tree.c (need_assembler_name_p): Also check that type
        is CXX_ODR_TYPE_P
        (verify_type_variant): Update verification of SRING_FLAG;
        also check CXX_ODR_P.
        * tree.h (ARRAY_OR_INTEGER_TYPE_CHECK): New macro.
        (TYPE_STRING_FLAG): Use it.
        (TYPE_CXX_ODR_P): New macro.
        * dwarf2out.c (gen_array_type_die): First check that type
        is an array and then test string flag.

2019-06-24  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90972
        * tree-vect-stmts.c (vect_init_vector): Handle CONSTANT_CLASS_P
        in common code, dealing with STRING_CST properly.

2019-06-24  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90930
        PR tree-optimization/90316
        * tree-ssa-alias.c (walk_non_aliased_vuses): Add missing
        decrement of limit.

2019-06-24  Martin Sebor  <msebor@redhat.com>

        * tree-pretty-print.h: Remove unnecessary punctuation characters
        from a diagnostic.
        * tree-ssa.c (release_defs_bitset): Correct preprocessor conditional.

2019-06-24  Jonathan Wakely  <jwakely@redhat.com>

        * ginclude/float.h (FLT_DECIMAL_DIG, DBL_DECIMAL_DIG, LDBL_DECIMAL_DIG)
        (FLT_HAS_SUBNORM, DBL_HAS_SUBNORM, LDBL_HAS_SUBNORM, FLT_TRUE_MIN)
        (DBL_TRUE_MIN, LDBL_TRUE_MIN): Also define for C++17.

2019-06-23  Iain Sandoe  <iain@sandoe.co.uk>

        * config/rs6000/darwin.h: Handle GCC target pragma.

2019-06-23  Iain Sandoe  <iain@sandoe.co.uk>

        * config/rs6000/darwin.h: (__PPC__, __PPC64__): New.

2019-06-22  Jeff Law  <law@redhat.com>

        * config/avr/avr.c (TARGET_BUILTIN_SETJMP_FRAME_VALUE): Remove.

2019-06-22  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-alias.c (nonoverlapping_component_refs_p): Do not
        give up on bitfields; continue searching for different refs
        appearing later.

2019-06-21  Jakub Jelinek  <jakub@redhat.com>

        * tree-vect-data-refs.c (vect_find_stmt_data_reference): Handle
        even zero DR_OFFSET, but DR_BASE_ADDRESS of POINTER_PLUS_EXPR
        containing the offset as possible simd lane access.  Look through
        widening conversion.  Move the
        TREE_CODE (DR_INIT (newdr)) == INTEGER_CST test earlier and reindent.

2019-06-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90930
        * tree-ssa-reassoc.c (rewrite_expr_tree_parallel): Set visited
        flag on new stmts to avoid re-processing them.

2019-06-21  Matthew Beliveau  <mbelivea@redhat.com>

        PR c++/90875 - added -Wswitch-outside-range option
        * doc/invoke.texi (Wswitch-outside-range): Document.

2019-06-21  Jeff Law  <law@redhat.com>

        PR tree-optimization/90949
        * tree-ssa-copy.c (fini_copy_prop): Use reset_flow_sensitive_info.
        * tree-ssanames.c (reset_flow_sensitive_info): Reset non-null state.

2019-06-21  Richard Biener  <rguenther@suse.de>

        PR debug/90914
        * dwarf2out.c (prune_unused_types_walk): Always consider
        function-local extern declarations as used.

2019-06-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90913
        * tree-vect-loop-manip.c (vect_loop_versioning): Do not re-use
        the scalar variant of if-conversion versioning.

2019-06-21  Jakub Jelinek  <jakub@redhat.com>

        * omp-low.c (lower_rec_simd_input_clauses): Add rvar2 argument,
        create another "omp scan inscan exclusive" array if
        !ctx->scan_inclusive.
        (lower_rec_input_clauses): Handle exclusive scan inscan reductions.
        (lower_omp_scan): Likewise.
        * tree-vectorizer.h (struct _stmt_vec_info): Use 3-bit instead of
        2-bit bitfield for simd_lane_access_p member.
        * tree-vect-data-refs.c (vect_analyze_data_refs): Also handle
        aux == (void *)-4 as simd lane access.
        * tree-vect-stmts.c (check_scan_store): Handle exclusive scan.  Update
        comment with permutations to show the canonical permutation order.
        (vectorizable_scan_store): Handle exclusive scan.
        (vectorizable_store): Call vectorizable_scan_store even for
        STMT_VINFO_SIMD_LANE_ACCESS_P > 3.

        * tree-vect-data-refs.c (vect_find_stmt_data_reference): Handle
        "omp simd array" arrays with one byte elements.

2019-06-20  Uroš Bizjak  <ubizjak@gmail.com>

        * config/alpha/alpha.md (@unaligned_store<mode>):
        Rename from unaligned_store<mode>.
        (@reload_in<mode>_aligned): Rename from reload_in<mode>_aligned.
        * config/alpha/sync.md (@load_locked_<mode>): Rename
        from load_locked_<mode>.
        (@store_conditional_<mode>): Rename from store_conditional_<mode>.
        (@atomic_compare_and_swap<mode>_1): Rename
        from atomic_compare_and_swap<mode>_1.
        (@atomic_exchange<mode>_1): Rename from atomic_exchange<mode>_1.
        * config/alpha/alpha.c (alpha_expand_mov_nobwx):
        Use gen_reload_in_aligned and gen_unaligned_store.
        (emit_load_locked): Remove.
        (emit_store_conditional): Ditto.
        (alpha_split_atomic_op): Use gen_load_locked and gen_store_conditional.
        (alpha_split_compare_and_swap): Ditto.
        (alpha_expand_compare_and_swap_12): Use gen_atomic_compare_and_swap_1.
        (alpha_split_compare_and_swap_12): Use gen_load_locked
        and gen_store_conditional.
        (alpha_split_atomic_exchange): Ditto.
        (alpha_expand_atomic_exchange_12): Use gen_atomic_exchange_1.
        (alpha_split_atomic_exchange_12): Use gen_load_locked
        and gen_store_conditional.

2019-06-20  Richard Earnshaw  <rearnsha@arm.com>

        * config/aarch64/aarch64-errata.h: New file.
        * config/aarch64/aarch64-elf-raw.h (CA53_ERR_835769_SPEC): Delete.
        (CA53_ERR_843419_SPEC): Delete.
        (LINK_SPEC): Use AARCH64_ERRATA_LINK_SPEC instead of above.
        * config/aarch64/aarch64-linux.h: Likewise.
        * config/aarch64/aarch64-netbsd.h: Likewise.
        * config/aarch64/aarch64-freebsd.h: Likewise.

2019-06-20  Marek Polacek  <polacek@redhat.com>

        * config/sh/sh.c (sh2a_function_vector_p): Use get_attribute_name.

2019-06-20  Michael Meissner  <meissner@linux.ibm.com>

        * config/rs6000/rs6000.md (isa attribute): Add support for
        for a future processor.

2019-06-20  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/54855
        * config/i386/i386-expand.c (ix86_expand_vector_set): Generate
        standard scalar operation pattern for V2DF.
        * config/i386/sse.md (*<sse>_vm<plusminus_insn><mode>3): New.
        (*<sse>_vm<multdiv_mnemonic><mode>3): Likewise.
        (*ieee_<ieee_maxmin><mode>3): Likewise.
        (vec_setv2df_0): Likewise.

2019-06-20  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-alias.c (aliasing_component_refs_p): Remove ref2_is_decl
        parameter; it has no use in gimple memory model.
        (indirect_ref_may_alias_decl_p): Update.

2019-06-20  Martin Liska  <mliska@suse.cz>

        * params.def (PARAM_HASH_TABLE_VERIFICATION_LIMIT): Decrease
        to 10.

2019-06-20  Jakub Jelinek  <jakub@redhat.com>

        * tree-vect-stmts.c (enum scan_store_kind): New type.
        (scan_store_can_perm_p): Change last argument from int * to
        vec<enum scan_store_kind> *, record precisely which permutations
        need whole vector left shift or that plus VEC_COND_EXPR.
        (vectorizable_scan_store): Adjust caller, use whole vector left shift
        and additional VEC_COND_EXPR only for those iterations that need it.

2019-06-20  Alexandre Oliva  <oliva@adacore.com>

        * config.gcc: Fix ARM --with-fpu checking and error message.

2019-06-19  Marek Polacek  <polacek@redhat.com>

        PR c++/60364 - noreturn after first decl not diagnosed.
        * attribs.c (get_attribute_namespace): No longer static.
        (decl_attributes): Avoid shadowing.  Preserve the C++11 form for C++11
        attributes.
        (attr_noreturn_exclusions): Make it extern.
        * attribs.h (get_attribute_namespace): Declare.
        * tree-inline.c (function_attribute_inlinable_p): Use
        get_attribute_name.

2019-06-19  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/90626
        * tree-ssa-strlen.c (strxcmp_unequal): Fix typos.

        PR tree-optimization/90626
        * tree-ssa-strlen.c (strxcmp_unequal): New function.
        (handle_builtin_string_cmp): Call it.

2019-06-19  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.h (DRIVER_SELF_SPECS): Add RDYNAMIC, DARWIN_PIE_SPEC
        and DARWIN_NOPIE_SPEC.
        (RDYNAMIC): New, modified from DARWIN_EXPORT_DYNAMIC.
        (DARWIN_PIE_SPEC): Collate from darwin.h and darwin9.h.
        (DARWIN_NOPIE_SPEC): Collate from darwin10.h.
        (DARWIN_NOCOMPACT_UNWIND): New from darwin10.h
        (DARWIN_EXPORT_DYNAMIC): Delete.
        * config/darwin10.h (LINK_GCC_C_SEQUENCE_SPEC): Move no_compact_unwind
        and pie options processing to  darwin.h.
        * config/darwin9.h (DARWIN_PIE_SPEC): Move pie processing to darwin.h

2019-06-19  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin-driver.c (darwin_driver_init): Fix off-by-one errors
        in computing the number of options to be moved.

2019-06-19  Maya Rashish  <coypu@sdf.org>

        *  config/arm/netbsd-elf.h (SYSARCH_ARM_SYNC_ICACHE): New definition.
        (CLEAR_INSN_CACHE) Use it.

2019-06-19  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (cmpstrnsi): Remove dead code.

2019-06-19  Wilco Dijkstra  <wdijkstr@arm.com>

        PR middle-end/84521
        * builtins.c (expand_builtin_setjmp_setup): Save
        hard_frame_pointer_rtx.
        (expand_builtin_setjmp_receiver): Do not emit sfp = fp move since we
        restore fp.
        * function.c (expand_function_start): Save hard_frame_pointer_rtx for
        non-local goto.
        * lra-eliminations.c (eliminate_regs_in_insn): Remove sfp = fp
        elimination code.
        (remove_reg_equal_offset_note): Remove unused function.
        * reload1.c (eliminate_regs_in_insn): Remove sfp = hfp elimination
        code.
        * config/arc/arc.c (TARGET_BUILTIN_SETJMP_FRAME_VALUE): Remove.
        (arc_builtin_setjmp_frame_value): Remove function.
        * config/avr/avr.c  (TARGET_BUILTIN_SETJMP_FRAME_VALUE): Remove.
        (avr_builtin_setjmp_frame_value): Remove function.
        * config/i386/i386.c (TARGET_BUILTIN_SETJMP_FRAME_VALUE): Remove.
        (ix86_builtin_setjmp_frame_value): Remove function.
        * config/pa/pa.md (nonlocal_goto): Remove FP adjustment.
        * config/sparc/sparc.c (TARGET_BUILTIN_SETJMP_FRAME_VALUE): Remove.
        (sparc_builtin_setjmp_frame_value): Remove function.
        * config/vax/vax.c (TARGET_BUILTIN_SETJMP_FRAME_VALUE): Remove.
        (vax_builtin_setjmp_frame_value): Remove function.
        * config/xtensa/xtensa.c (xtensa_frame_pointer_required): Force frame
        pointer if has_nonlocal_label.

2019-06-19  Jakub Jelinek  <jakub@redhat.com>

        * doc/md.texi: Document vec_shl_<mode> pattern.
        * optabs.def (vec_shl_optab): New optab.
        * optabs.c (shift_amt_for_vec_perm_mask): Add shift_optab
        argument, if == vec_shl_optab, check for left whole vector shift
        pattern rather than right shift.
        (expand_vec_perm_const): Add vec_shl_optab support.
        * optabs-query.c (can_vec_perm_var_p): Mention also vec_shl optab
        in the comment.
        * tree-vect-generic.c (lower_vec_perm): Support permutations which
        can be handled by vec_shl_optab.
        * tree-vect-stmts.c (scan_store_can_perm_p): New function.
        (check_scan_store): Use it.
        (vectorizable_scan_store): If target can't do normal permutations,
        try to use whole vector left shifts and if needed a VEC_COND_EXPR
        after it.
        * config/i386/sse.md (vec_shl_<mode>): New expander.

        * omp-low.c (lower_rec_input_clauses): Handle references properly
        in inscan clauses.
        (lower_omp_scan): Likewise.

2019-06-19  Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

        * tree-ssa-address.c (preferred_mem_scale_factor): Handle when
        mem_mode is BLKmode.

2019-06-18  Max Filippov  <jcmvbkbc@gmail.com>

        PR target/90922
        * config/xtensa/xtensa.c (xtensa_expand_prologue): Add stack
        pointer adjustment for the case of no callee-saved registers and
        stack frame bigger than 128 bytes.

2019-06-18  Thomas Schwinge  <thomas@codesourcery.com>

        PR middle-end/90862
        * omp-low.c (check_omp_nesting_restrictions): Handle
        GF_OMP_TARGET_KIND_OACC_DECLARE.

2019-06-18  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (@cmp<mode>_1): Rename from cmp<mode>_1.
        (@add<mode>3_carry): Rename from add<mode>3_carry.
        (@sub<mode>3_carry_ccc): Rename from sub<mode>3_carry_ccc.
        (@sub<mode>3_carry_ccgz): Rename form sub<mode>3_carry_ccgz.
        (@copysign<mode>3_const): Rename from copysign<mode>3_const.
        (@copysign<mode>3_var): Rename from copysign<mode>3_var.
        (@xorsign<mode>3_1): Rename from xorsign<mode>3_1.
        (@x86_shift<mode>_adj_1): Rename from x86_shift<mode>_adj_1.
        (@x86_shift<mode>_adj_2): Rename from x86_shift<mode>_adj_2.
        (@x86_shift<mode>_adj_3): Rename from x86_shift<mode>_adj_3.
        (cmpstrnsi): Use gen_cmp_1.
        (lwp_slwpcb): Use gen_lwp_slwpcb_1.
        (@lwp_slwpcb<mode>_1): Rename from lwp_slwpcb<mode>_1.
        (@umonitor_<mode>): Rename from umonitor_<mode>.
        * config/i386/i386-expand.c (ix86_expand_copysign):
        Use gen_copysign3_const and gen_copysign3_var.
        (ix86_expand_xorsign): Use gen_xorsign3_1.
        (ix86_expand_branch): Use gen_sub3_carry_ccc,
        gen_sub3_carry_ccgz and gen_cmp1.
        (ix86_expand_int_addcc): Use gen_sub3_carry and gen_add3_carry.
        (ix86_split_ashl): Use gen_x86_shift_adj_1 and gen_x86_shift_adj_2.
        (ix86_split_ashr): Use gen_x86_shift_adj_1 and gen_x86_shift_adj_3.
        (ix86_split_lshr): Ditto.
        (ix86_expand_builtin) <case IX86_BUILTIN_UMONITOR>: Use gen_umonitor.

2019-06-18  Jason Merrill  <jason@redhat.com>

        * tree.c (build_constructor): Add MEM_STAT_DECL.

2019-06-18  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-modes.def (CC_NZC): New CC_MODE.
        * config/aarch64/aarch64-sve.md (*<optab><mode>3_cc)
        (ptest_ptrue<mode>, while_ult<GPI:mode><PRED_ALL:mode>)
        (*while_ult<GPI:mode><PRED_ALL:mode>_cc, *cmp<cmp_op><mode>)
        (*cmp<cmp_op><mode>_ptest, *cmp<cmp_op><mode>_cc)
        (*pred_cmp<cmp_op><mode>_combine, *pred_cmp<cmp_op><mode>)
        (vec_cmp<mode><vpred>, vec_cmpu<mode><vpred>, cbranch<mode>4):
        Use CC_NZC instead of CC.
        * config/aarch64/aarch64.md (condjump): Print a '.' in SVE conditions.
        * config/aarch64/aarch64.c (aarch64_sve_condition_codes): New variable.
        (aarch64_print_operand): Handle E_CC_NZCmode.
        (aarch64_emit_sve_ptrue_op_cc): Use gen_set_clobber_cc_nzc instead
        of gen_set_clobber_cc.

2019-06-18  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-sve.md: Tabify file.

2019-06-18  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_pfalse_reg): Declare.
        * config/aarch64/aarch64.c (aarch64_pfalse_reg): New function.
        * config/aarch64/aarch64-sve.md: Use it.

2019-06-18  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_ptrue_reg): Declare.
        * config/aarch64/aarch64.c (aarch64_ptrue_reg): New functions.
        (aarch64_expand_sve_widened_duplicate, aarch64_expand_sve_mem_move)
        (aarch64_maybe_expand_sve_subreg_move, aarch64_evpc_rev_local)
        (aarch64_expand_sve_vec_cmp_int): Use it.
        (aarch64_expand_sve_vec_cmp_float): Likewise.
        * config/aarch64/aarch64-sve.md: Likewise throughout.

2019-06-18  Richard Sandiford  <richard.sandiford@arm.com>
            Kugan Vivekanandarajah  <kuganv@linaro.org>

        * config/aarch64/aarch64-sve.md (*cond_<optab><mode>_0): Delete.
        (*cond_<optab><mode>_z): Fold into...
        (*cond_<optab><mode>_any): ...here.  Also handle cases in which
        operand 4 can be tied to operand 0 (either inherently or via RA).

2019-06-18  Richard Biener  <rguenther@suse.de>

        PR debug/90900
        * cfgexpand.c (expand_debug_expr): Treat NOTE_P DECL_RTL
        as if optimized away.

2019-06-18  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx-protos.h (gen_set_softstack_insn): Remove.
        * config/nvptx/nvptx.c (gen_set_softstack_insn): Remove.
        * config/nvptx/nvptx.md (define_insn "set_softstack_<mode>"):
        Rename to ...
        (define_insn "@set_softstack_<mode>"): ... this.
        (define_insn "omp_simt_enter_<mode>"): Rename to ...
        (define_insn "@omp_simt_enter_<mode>"): ... this.
        (define_insn "omp_simt_exit_<mode>"): Rename to ...
        (define_insn "@omp_simt_exit_<mode>"): ... this.

2019-06-18  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-vect-loop-manip.c (vect_set_loop_masks_directly): Remove
        vf parameter.  Restore the previous iv step of nscalars_step,
        but give it iv_type rather than compare_type.  Tweak code order
        to match the comments.
        (vect_set_loop_condition_masked): Update accordingly.
        * tree-vect-loop.c (vect_verify_full_masking): Use "unsigned int"
        for iv_precision.  Tweak comment formatting.

2019-06-18  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.c: Strip trailing whitespace.

2019-06-18  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.c (darwin_emit_unwind_label): New default to false.
        (darwin_override_options): Set darwin_emit_unwind_label as needed.

2019-06-18  Martin Jambor  <mjambor@suse.cz>

        PR ipa/90889
        * ipa-cp.c (ignore_edge_p): Do not ignore edges when only the
        caller does not have flag_ipa_cp set.

2019-06-18  Alejandro Martinez  <alejandro.martinezvicente@arm.com>

        * config/aarch64/aarch64-sve.md (mask_fold_left_plus_<mode>): Renamed
        from "*fold_left_plus_<mode>", updated operands order.
        * doc/md.texi (mask_fold_left_plus_@var{m}): Documented new optab.
        * internal-fn.c (mask_fold_left_direct): New define.
        (expand_mask_fold_left_optab_fn): Likewise.
        (direct_mask_fold_left_optab_supported_p): Likewise.
        * internal-fn.def (MASK_FOLD_LEFT_PLUS): New internal function.
        * optabs.def (mask_fold_left_plus_optab): New optab.
        * tree-vect-loop.c (mask_fold_left_plus_optab): New function to get a
        masked internal_fn for a reduction ifn.
        (vectorize_fold_left_reduction): Add support for masking reductions.

2019-06-18  Kewen Lin  <linkw@gcc.gnu.org>

        PR middle-end/80791
        * target.def (predict_doloop_p): New hook.
        * targhooks.h (default_predict_doloop_p): New declaration.
        * targhooks.c (default_predict_doloop_p): New function.
        * doc/tm.texi.in (TARGET_PREDICT_DOLOOP_P): New hook.
        * doc/tm.texi: Regenerate.
        * config/rs6000/rs6000.c (rs6000_predict_doloop_p): New function.
        (TARGET_PREDICT_DOLOOP_P): New macro.
        * tree-ssa-loop-ivopts.c (generic_predict_doloop_p): New function.

2019-06-17  Jakub Jelinek  <jakub@redhat.com>

        * omp-low.c (struct omp_context): Add scan_inclusive field.
        (scan_omp_1_stmt) <case GIMPLE_OMP_SCAN>: Set ctx->scan_inclusive
        if inclusive scan.
        (struct omplow_simd_context): Add lastlane member.
        (lower_rec_simd_input_clauses): Add rvar argument, handle inscan
        reductions.  Build 2 or 3 argument .GOMP_SIMD_LANE calls rather than
        1 or 2 argument.
        (lower_rec_input_clauses): Handle inscan reductions in simd contexts.
        (lower_lastprivate_clauses): Set TREE_THIS_NOTRAP on the ARRAY_REF.
        (lower_omp_scan): New function.
        (lower_omp_1) <case GIMPLE_OMP_SCAN>: Use lower_omp_scan.
        * tree-ssa-dce.c (eliminate_unnecessary_stmts): For IFN_GOMP_SIMD_LANE
        check 3rd argument if present rather than 2nd.
        * tree-vectorizer.h (struct _loop_vec_info): Add scan_map member.
        (struct _stmt_vec_info): Change simd_lane_access_p from bool into
        2-bit bitfield.
        * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
        scan_map.  For IFN_GOMP_SIMD_LANE check 3rd argument if present rather
        than 2nd.
        (_loop_vec_info::~_loop_vec_info): Delete scan_map.
        * tree-vect-data-refs.c (vect_analyze_data_ref_accesses): Allow two
        different STMT_VINFO_SIMD_LANE_ACCESS_P refs if they have the same
        init.
        (vect_find_stmt_data_reference): Encode in ->aux the 2nd
        IFN_GOMP_SIMD_LANE argument.
        (vect_analyze_data_refs): Set STMT_VINFO_SIMD_LANE_ACCESS_P from the
        encoded ->aux value.
        * tree-vect-stmts.c: Include attribs.h.
        (vectorizable_call): Adjust comment about IFN_GOMP_SIMD_LANE.
        (scan_operand_equal_p, check_scan_store, vectorizable_scan_store): New
        functions.
        (vectorizable_load): For STMT_VINFO_SIMD_LANE_ACCESS_P tests use != 0.
        (vectorizable_store): Handle STMT_VINFO_SIMD_LANE_ACCESS_P > 1.

2019-06-17  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/62055
        * config/i386/i386.md (*nabstf2_1): New insn pattern.
        (*nabs<mode>2_1): Ditto.
        (nabs sse-reg splitter): New splitter.
        * config/i386/sse.md (*nabs<mode>2): New insn_and_split pattern.

2019-06-17  Jan Hubicka  <hubicka@ucw.cz>

        PR bootstrap/90873.
        * tree-ssa-alias.c (indirect_ref_may_alias_decl_p): Fix
        TMR index check.

2019-06-17  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx-protos.h (gen_set_softstack_insn): Declare.
        * config/nvptx/nvptx.c (gen_set_softstack_insn): New function.
        * config/nvptx/nvptx.md (define_insn "set_softstack_insn"): Rename to
        ...
        (define_insn "set_softstack_<mode>"): ... this.  Use P iterator on
        match_operand 0.
        (define_insn "omp_simt_enter_insn"): Rename to ...
        (define_insn "omp_simt_enter_<mode>"): ... this.  Use P iterator on
        match_operand 0, 1 and 2, as well as the unspec_volatile result.
        (define_expand "omp_simt_enter): Use gen_omp_simt_enter_di and
        gen_omp_simt_enter_si.
        (define_expand "omp_simt_exit"): New.
        (define_insn "omp_simt_exit"): Rename to ...
        (define_insn "omp_simt_exit_<mode>"): ... this.  Use P iterator on
        match_operand 0.

2019-06-17  Matthew Green  <mrg@eterna.com.au>
            Maya Rashish  <coypu@sdf.org>

        * config.gcc (aarch64*-*-netbsd*): New target.
        * config/aarch64/aarch64-netbsd.h: New file.
        * config/aarch64/t-aarch64-netbsd: Likewise.

2019-06-17  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-alias.c (aliasing_component_refs_p): Consider only
        the access path from base to first VIEW_CONVERT_EXPR or
        BIT_FIELD_REF.

2019-06-17  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-alias.c (nonoverlapping_component_refs_p): Also truncate
        access path on BIT_FIELD_REFs.

2019-06-17  Martin Liska  <mliska@suse.cz>

        PR ipa/90874
        * ipa-utils.h (odr_type_p): Remove dead code.

2019-06-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * configure.ac (ld_vers) <*-*-solaris2*>: Remove support for
        alternative Solaris 11.4 format.
        * configure: Regenerate.

2019-06-17  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.md (define_insn "call_insn"): Rename to ...
        (define_insn "call_insn_<mode>"): ... this.  Use P iterator on
        match_operand 0.
        (define_insn "call_value_insn"): Rename to ...
        (define_insn "call_value_insn_<mode>"): this.  Use P iterator on
        match_operand 0.
        (define_insn "nvptx_red_partition"): Set unspec_volatile result mode to
        DI.

2019-06-16  John David Anglin  <danglin@gcc.gnu.org>

        PR middle-end/64242
        * config/pa/pa.md (nonlocal_goto): Restore frame pointer last.  Add
        frame clobbers and schedule block.
        (builtin_longjmp): Likewise.

2019-06-16  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        * config/msp430/msp430.c (msp430_expand_helper): Setup arguments which
        describe how to perform MSPABI compliant 64-bit shift.
        * config/msp430/msp430.md (ashldi3): New define_expand.
        (ashrdi3): New define_expand.
        (lshrdi3): New define_expand.

2019-06-16  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        * doc/sourcebuild.texi: Document new effective target keyword
        longlong64.

2019-06-16  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-alias.c (indirect_ref_may_alias_decl_p,
        indirect_refs_may_alias_p): Revert accidental commits.

        * tree-ssa-alias.c (aliasing_component_refs_p): Watch for arrays
        at the end of structures.

2019-06-16  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.c (machopic_indirect_call_target): Use renamed
        darwin_picsymbol_stubs to decide on output.
        (darwin_override_options): Handle darwin_picsymbol_stubs.
        * config/darwin.h (MIN_LD64_OMIT_STUBS): New.
        (LD64_VERSION): Revise default.
        * config/darwin.opt: (mpic-symbol-stubs): New option.
        (darwin_picsymbol_stubs): New variable.
        * config/i386/darwin.h (TARGET_MACHO_BRANCH_ISLANDS):
        rename to TARGET_MACHO_PICSYM_STUBS.
        * config/i386/i386.c (output_pic_addr_const): Likewise.
        * config/i386/i386.h Likewise.
        * config/rs6000/darwin.h: Likewise.
        * config/rs6000/rs6000.c (rs6000_call_darwin_1): Use renamed
        darwin_picsymbol_stubs.

2019-06-16  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.opt (prebind, noprebind, seglinkedit,
        noseglinkedit): Add RejectNegative.

2019-06-16  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-alias.c (nonoverlapping_component_refs_p): Fix pasto
        in my previous patch.

2019-06-16  Tom de Vries  <tdevries@suse.de>

        PR tree-optimization/89376
        * tree-parloops.c (oacc_entry_exit_ok_1): Handle red == NULL.

2019-06-15  Maya Rashish  <coypu@sdf.org>

        * doc/invoke.texi (Spec Files): Update location of the
        Fortran spec file.

2019-06-15  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/extend.texi (Common Function Attributes): Clarify
        no_sanitize.  Fix grammar.

2019-06-15  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-alias.c (alias_stats): Add
        nonoverlapping_component_refs_p_may_alias,
        nonoverlapping_component_refs_p_no_alias,
        nonoverlapping_component_refs_of_decl_p_may_alias,
        nonoverlapping_component_refs_of_decl_p_no_alias.
        (dump_alias_stats): Dump them.
        (nonoverlapping_component_refs_of_decl_p): Add stats.
        (nonoverlapping_component_refs_p): Add stats; do not stop on first
        ARRAY_REF.

2019-06-15  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (and<mode>3): Generate zero-extends for
        TARGET_ZERO_EXTEND_WITH_AND && optimize_function_for_speed_p (cfun))
        only.
        (*anddi3_doubleword): Split before reload. Merge with
        anddi->zext pre-reload splitter.
        (*andndi3_doubleword): Split before reload.
        (*<code>di3_doubleword): Ditto.
        (*one_cmpldi2_doubleword): Ditto.

2019-06-15  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/90779
        * gimplify.c: Include omp-offload.h and context.h.
        (gimplify_bind_expr): Add "omp declare target" attributes
        to static block scope variables inside of target region or target
        functions.

2019-06-15  Tom de Vries  <tdevries@suse.de>

        PR tree-optimization/90009
        * tree-ssa-threadbackward.c (thread_jumps::profitable_jump_thread_path):
        Return NULL if bb contains IFN_UNIQUE.

2019-06-14  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (CCEITHER): New define_mode_iterator.
        (un): New define_mode_attr.
        (isel_signed_<mode>, isel_unsigned_<mode>): Delete, merge into ...
        (isel_<un>signed_<GPR:mode>): ... this.  New define_insn.
        (isel_reversed_signed_<mode>, isel_reversed_unsigned_<mode>): Delete,
        merge into ...
        (isel_reversed_<un>signed_<GPR:mode>): ... this.  New define_insn.

2019-06-14  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.opt: Add RejectNegative where needed, reorder
        and add minimal functional descriptions.

2019-06-14  H.J. Lu  <hongjiu.lu@intel.com>

        PR rtl-optimization/90765
        * calls.c (update_stack_alignment_for_call): New function.
        (expand_call): Call update_stack_alignment_for_call when
        outgoing parameter is passed in the stack.
        (emit_library_call_value_1): Likewise.
        * function.c (locate_and_pad_parm): Don't update
        stack_alignment_needed and preferred_stack_boundary.

2019-06-14  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/90877
        * config/i386/i386-features.c
        (dimode_scalar_chain::compute_convert_gain): Replace
        mmxsse_to_integer with sse_to_integer.
        * config/i386/i386.c (ix86_register_move_cost): Verify that
        moves between MMX and non-MMX units require secondary memory.
        Correct costs of moves between SSE and integer units.
        * config/i386/i386.h (processor_costs): Rename cost of moving
        SSE register to integer to sse_to_integer.  Rename cost of

2019-06-14  Matt Thomas  <matt@3am-software.com>
            Matthew Green  <mrg@eterna.com.au>
            Nick Hudson  <skrll@netbsd.org>
            Maya Rashish  <coypu@sdf.org>
            Richard Earnshaw  <rearnsha@arm.com>

        * config.gcc (arm*-*-netbsdelf*) Add support for EABI configuration.
        * config.host (arm*-*-netbsd*): Use driver-arm.o on native NetBSD.
        * config/arm/netbsd-eabi.h: New file.
        * config/arm/netbsd-elf.h (TARGET_OS_CPP_BUILTINS): Undefine before
        redefining.
        (SUBTARGET_EXTRA_ASM_SPEC): Don't pass -matpcs to the assembler.
        * config/netbsd-elf.h (NETBSD_LINK_LD_ELF_SO_SPEC): New define.
        (NETBSD_SUBTARGET_EXTRA_SPECS): New define.
        (SUBTARGET_EXTRA_SPECS): Define to NETBSD_SUBTARGET_EXTRA_SPECS.

2019-06-14  Richard Biener  <rguenther@suse.de>

        * tree-loop-distribution.c (classify_partition): Return
        whether a reduction appeared in all partitions and do not
        stop builtin detection because of this.
        (distribute_loop): Sort a non-builtin partition last if
        there's a reduction in all partitions and make sure the
        partition prevailing as last is not a builtin.

2019-06-14  Feng Xue  <fxue@os.amperecomputing.com>

        PR ipa/90401
        * ipa-prop.c (add_to_agg_contents_list): New function.
        (clobber_by_agg_contents_list_p): Likewise.
        (extract_mem_content): Likewise.
        (get_place_in_agg_contents_list): Delete.
        (determine_known_aggregate_parts): Renamed from
        determine_locally_known_aggregate_parts.  New parameter
        aa_walk_budget_p.

2019-06-13  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/90662
        * tree-ssa-strlen.c (get_stridx): Convert fold_build2 operands
        to the same type.

2019-06-13  Jan Hubicka  <hubicka@ucw.cz>

        PR bootstrap/90873
        * tree-ssa-alias.c (indirect_ref_may_alias_decl_p): Also check that
        dbase is not TARGET_MEM_REF.

2019-06-13  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (SWIM1248s): Rename from SWIM1248x.
        Update all uses.
        (and<mode>3): Use gen_extend_insn instead of indirect functions.
        Do not generate DImode extends for 32bit targets.
        (and->zext post-reload splitter): Use gen_extend_insn
        instead of indirect functions.
        (anddi->zext pre-reload splitter): New.
        (*zext<mode>_doubleword_and): Remove.
        (*zext<mode>_doubleword): Ditto.
        (*zextsi_doubleword): Dittto.

2019-06-13  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386-expand.c (ix86_expand_int_sse_cmp):
        Use gen_sub3_insn instead of indirect function.
        (ix86_expand_ashl_const): Use gen_add2_insn instead of
        indirect function.
        (ix86_adjust_counter): Ditto.

2019-06-13  Jiufu Guo  <guojiufu@linux.ibm.com>
            Lijia He  <helijia@linux.ibm.com>

        PR tree-optimization/77820
        * tree-ssa-threadedge.c
        (edge_forwards_cmp_to_conditional_jump_through_empty_bb_p): New
        function.
        (thread_across_edge): Add call to
        edge_forwards_cmp_to_conditional_jump_through_empty_bb_p.

2019-06-13  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin-driver.c (validate_macosx_version_min): New.
        (darwin_default_min_version): Cleanup and validate supplied version.
        (darwin_driver_init): Likewise and push cleaned version into opts.

2019-06-13  Jan Hubicka  <hubicka@ucw.cz>

        PR tree-optimization/90869
        * tree-ssa-alias.c (indirect_ref_may_alias_decl_p): Watch for view
        converts in MEM_REF referencing decl rather than view converts
        from decl type to MEM_REF type.

2019-06-13  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90856
        * tree-sra.c (build_ref_for_model): Only use
        build_reconstructed_reference when address-spaces are the same.

2019-06-13  Jakub Jelinek  <jakub@redhat.com>

        * config/nvptx/nvptx.c (nvptx_sese_number, nvptx_sese_pseudo): Don't
        wrap ei variable name in the declaration in ()s.
        (nvptx_single): Actually use mode_label variable.  Formatting fix.

2019-06-13  Richard Biener  <rguenther@suse.de>

        * tree-vectorizer.h (vect_loop_vectorized_call): Declare.
        * tree-vectorizer.c (vect_loop_vectorized_call): Export and
        also return the condition stmt.
        * tree-vect-loop-manip.c (vect_loop_versioning): Compute outermost
        loop we can version and version that, reusing the loop version
        created by if-conversion instead of versioning again.

2019-06-13  Aldy Hernandez  <aldyh@redhat.com>

        * gimple-loop-versioning.cc (prune_loop_conditions): Use
        may_contain_p.
        * tree-vrp (value_range_base::may_contain_p): Call into
        value_inside_range.
        (value_inside_range): Make private inside value_range_base class.
        Take min/max from *this.
        (range_includes_p): Remove.
        * tree-vrp.h (value_range_base): Add value_inside_range.
        (range_includes_p): Remove.
        (range_includes_zero_p): Call may_contain_p.
        * vr-values.c (compare_range_with_value): Same.

2019-06-13  Claudiu Zissulescu  <claziss@synopsys.com>

        * doc/extend.texi (ARC Function Attributes): Update info.

2019-06-13  Feng Xue  <fxue@os.amperecomputing.com>

        PR tree-optimization/89713
        * doc/invoke.texi (-ffinite-loops): Document new option.
        * common.opt (-ffinite-loops): New option.
        * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Mark
        IFN_GOACC_LOOP calls as necessary.
        * tree-ssa-loop-niter.c (finite_loop_p): Assume loop with an exit
        is finite.
        * omp-offload.c (oacc_xform_loop): Skip lowering if return value of
        IFN_GOACC_LOOP call is not used.
        * opts.c (default_options_table): Enable -ffinite-loops at -O2+.

2019-06-13  Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

        PR target/88838
        * tree-vect-loop-manip.c (vect_set_loop_masks_directly): If the
        compare_type is not with Pmode size, we will create an IV with
        Pmode size with truncated use (i.e. converted to the correct type).
        * tree-vect-loop.c (vect_verify_full_masking): Find IV type.
        (vect_iv_limit_for_full_masking): New. Factored out of
        vect_set_loop_condition_masked.
        * tree-vectorizer.h (LOOP_VINFO_MASK_IV_TYPE): New.
        (vect_iv_limit_for_full_masking): Declare.

2019-06-13  Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

        PR target/88834
        * tree-ssa-loop-ivopts.c (get_mem_type_for_internal_fn): Handle
        IFN_MASK_LOAD_LANES and IFN_MASK_STORE_LANES.
        (get_alias_ptr_type_for_ptr_address): Likewise.
        (add_iv_candidate_for_use): Add scaled index candidate if useful.
        * tree-ssa-address.c (preferred_mem_scale_factor): New.
        * config/aarch64/aarch64.c (aarch64_classify_address): Relax
        allow_reg_index_p.

2019-06-13  Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

        * config/aarch64/iterators.md (ADDSUB): Fix typo in comment.

2019-06-12  Dimitar Dimitrov  <dimitar@dinux.eu>

        * common/config/pru/pru-common.c: New file.
        * config.gcc: Add PRU target.
        * config/pru/alu-zext.md: New file.
        * config/pru/constraints.md: New file.
        * config/pru/predicates.md: New file.
        * config/pru/pru-opts.h: New file.
        * config/pru/pru-passes.c: New file.
        * config/pru/pru-pragma.c: New file.
        * config/pru/pru-protos.h: New file.
        * config/pru/pru.c: New file.
        * config/pru/pru.h: New file.
        * config/pru/pru.md: New file.
        * config/pru/pru.opt: New file.
        * config/pru/t-pru: New file.
        * doc/extend.texi: Document PRU pragmas.
        * doc/invoke.texi: Document PRU-specific options.
        * doc/md.texi: Document PRU asm constraints.

2019-06-12  Martin Sebor  <msebor@redhat.com>

        PR middle-end/90676
        * tree-pretty-print.c (dump_mem_ref): New function.  Include
        MEM_REF type in output when different size than operand.
        (dump_generic_node): Move code to dump_mem_ref and call it.

2019-06-12  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/90662
        * tree-ssa-strlen.c (get_stridx): Handle simple VLAs and pointers
        to arrays.

2019-06-12  Tom de Vries  <tdevries@suse.de>

        PR tree-optimization/90009
        * config/nvptx/nvptx.c (nvptx_find_par): Assert fork has at most join.

2019-06-12  Martin Liska  <mliska@suse.cz>

        * ggc-common.c (ggc_prune_overhead_list): Do not sanitize
        the created map.
        * hash-map.h: Add sanitize_eq_and_hash into ::hash_map.
        * mem-stats.h (mem_alloc_description::mem_alloc_description):
        Do not sanitize created maps.

2019-06-12  Aldy Hernandez  <aldyh@redhat.com>

        * gimple-ssa-evrp.c (evrp_dom_walker::before_dom_children): Use
        value_range::singleton_p.
        * tree-vrp.c (value_range_constant_singleton): Remove.
        * tree-vrp.h (value_range_constant_singleton): Remove.
        * vr-values.c (vr_values::singleton): Use
        value_range::singleton_p.

2019-06-12  Jakub Jelinek  <jakub@redhat.com>

        PR target/90811
        * cfgexpand.c (align_local_variable): Add really_expand argument,
        don't SET_DECL_ALIGN if it is false.
        (add_stack_var): Add really_expand argument, pass it through to
        align_local_variable.
        (expand_one_stack_var_1): Pass true as really_expand to
        align_local_variable.
        (expand_one_ssa_partition): Pass true as really_expand to
        add_stack_var.
        (expand_one_var): Pass really_expand through to add_stack_var.

2019-06-12  Przemyslaw Wirkus  <przemyslaw.wirkus@arm.com>

        * config/arm/iterators.md (VABAL): New int iterator.
        * config/arm/neon.md (<sup>sadv16qi): New define_expand.
        * config/arm/unspecs.md ("unspec"): Define UNSPEC_VABAL_S,
        UNSPEC_VABAL_U values.

2019-06-12  Martin Liska  <mliska@suse.cz>

        * value-prof.c (stream_out_histogram_value): Only first value
        can't be negative.

2019-06-12  Jakub Jelinek  <jakub@redhat.com>

        PR c/90760
        * symtab.c (symtab_node::set_section): Allow being called on aliases
        as long as they aren't analyzed yet.

2019-06-11  Faraz Shahbazker  <fshahbazker@wavecomp.com>

        * config/mips/mips.c (mips_final_postscan_insn): Modify call
        to `mips_set_text_contents_type' to indicate whether a
        non-debug insn follows.

2019-06-11  Michael Meissner  <meissner@linux.ibm.com>

        * config/rs6000/rs6000-cpus.def (ISA_FUTURE_MASKS_SERVER): Delete
        enabling -mpcrel by default.
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Update
        test for -mpcrel and/or -mprefixed-addr needing -mcpu=future, so
        that the test against -mcpu=future is done first.  Then test if
        -mprefixed-addr is on for -mpcrel.
        (rs6000_disable_incompatible_switches): Add -mcpu=future support.

2019-06-11  Jakub Jelinek  <jakub@redhat.com>

        PR target/90811
        * config/nvptx/nvptx.c (nvptx_output_softstack_switch): Use and.b%d
        instead of and.u%d.

2019-06-11  Marc Glisse  <marc.glisse@inria.fr>

        * match.pd (X/[ex]4<Y/[ex]4): Handle conversions.

2019-06-11  Matthew Beliveau  <mbelivea@redhat.com>

        PR c++/90449 - add -Winaccessible-base option.
        * doc/invoke.texi (Winaccessible-base): Document.

2019-06-11  Marc Glisse  <marc.glisse@inria.fr>

        PR tree-optimization/62041
        * fold-const.c (fold_real_zero_addition_p): Handle vectors.

2019-06-11  Jason Merrill  <jason@redhat.com>

        * gdbhooks.py (TreePrinter.to_string): Recognize ggc_free'd memory.
        * tree.c (get_tree_code_name): Likewise.
        * print-tree.c (print_node): Only briefly print a node with an
        invalid code.

2019-06-11  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/90819
        * trans-mem.c (tm_memopt_compute_available): Add assertion
        that blocks is not empty.  Formatting fix.

2019-06-11  Martin Liska  <mliska@suse.cz>

        PR c++/87847
        * hash-table.h: Extend create_gcc, add one parameter
        that is passed into hash_table::hash_table.

2019-06-10  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386-protos.h (ix86_split_fp_absneg_operator):
        New prototype.
        * config/i386/i386-expand.c (ix86_expand_fp_absneg_operator):
        Emit clobber also for non-sse operations.
        (ix86_split_fp_absneg_operator): New function.
        * config/i386/i386.md (SSEMODEF): New mode iterator.
        (ssevecmodef): New mode attribute.
        (<code>tf2): Use absneg code iterator.
        (*<code>tf2_1): Rename from *absnegtf3_sse. Use absneg code iterator.
        Add three-operand AVX alternatives.
        (*<code><mode>2_i387_1): Rename from *absnegxf2_i387.
        Use absneg code iterator and X87MODEF mode iterator.
        (absneg fp_reg non-sse splitter): Call absneg code iterator
        and X87MODEF mode iterator.
        (absneg general_reg non-sse splitter): Use absneg code iterator
        and X87MODEF mode iterator.  Use ix86_split_fp_absneg_operator.
        (*<code><mode>2_1): Rename from *absneg<mode>2.  Use absneg
        code iterator.  Add three-operand AVX alternative.
        (absneg sse_reg splitter): Use absneg code iterator
        and SSEMODEF mode iterator.  Handle AVX operands.
        (absneg fp_reg splitter): Use absneg code iterator
        and MODEF mode iterator.
        (absneg general_reg splitter): Merge splitters using MODEF mode
        iterator.  Use absneg code iterator.  Call
        ix86_split_fp_absneg_operator.
        (*<code><mode>2_i387): Rename from *<code><mode>2_1.
        Do not enable for non-sse modes before reload.
        (CSGNMODE): Remove.
        (CSGNVMODE): Ditto.
        (copysing<mode>3): Use SSEMODEF instead of CSGNMODE and
        ssevecmodef mode attribute instaed of CSGNVMODE.
        (copysign<mode>3_const): Ditto.
        (copysign<mode>3_var): Ditto.
        * config/i386/i386.md (*<code><mode>2): Rename from *absneg<mode>2.
        Use absneg code iterator.  Simplify code using std::swap.
        * config/i386/predicates.md (absneg_operator): Remove.

2019-06-10  Martin Sebor  <msebor@redhat.com>

        * gimple-fold.c (get_range_strlen): Update comment that didn't
        make it into r267503 or related commits.

2019-06-10  Vladislav Ivanishin  <vlad@ispras.ru>

        * gcov-tool.c (merge_usage, rewrite_usage): Mark with
        ATTRIBUTE_NORETURN thus making consistent with overlap_usage.

2019-06-10  Jakub Jelinek  <jakub@redhat.com>

        * tree.def (OMP_SCAN): New tree code.
        * tree-core.h (enum omp_clause_code): Add OMP_CLAUSE_INCLUSIVE and
        OMP_CLAUSE_EXCLUSIVE.
        * tree.h (OMP_CLAUSES): Use OMP_SCAN instead of OMP_TASKGROUP.
        (OMP_SCAN_BODY, OMP_SCAN_CLAUSES): Define.
        * tree.c (omp_clause_num_ops, omp_clause_code_name): Add entries for
        OMP_CLAUSE_{IN,EX}CLUSIVE.
        (walk_tree_1): Handle OMP_CLAUSE_{IN,EX}CLUSIVE.
        * tree-nested.c (convert_nonlocal_reference_stmt,
        convert_local_reference_stmt, convert_gimple_call): Handle
        GIMPLE_OMP_SCAN.
        * tree-pretty-print.c (dump_omp_clause): Handle
        OMP_CLAUSE_{IN,EX}CLUSIVE.
        (dump_generic_node): Handle OMP_SCAN.
        * gimple.def (GIMPLE_OMP_SCAN): New gimple code.
        * gimple.h (gomp_scan): New type.
        (is_a_helper <gomp_scan *>::test,
        is_a_helper <const gomp_scan *>::test): New templates.
        (gimple_build_omp_scan): Declare.
        (gimple_omp_scan_clauses, gimple_omp_scan_clauses_ptr,
        gimple_omp_scan_set_clauses): New inline functions.
        (CASE_GIMPLE_OMP): Add case GIMPLE_OMP_SCAN:.
        * gimple.c (gimple_build_omp_scan): New function.
        (gimple_copy): Handle GIMPLE_OMP_SCAN.
        * gimple-walk.c (walk_gimple_op, walk_gimple_stmt): Likewise.
        * gimple-pretty-print.c (dump_gimple_omp_block): Don't handle
        GIMPLE_OMP_TASKGROUP.
        (dump_gimple_omp_scan): New function.
        (pp_gimple_stmt_1): Handle GIMPLE_OMP_SCAN.
        * gimple-low.c (lower_stmt): Handle GIMPLE_OMP_SCAN.
        * tree-inline.c (remap_gimple_stmt, estimate_num_insns): Likewise.
        * gimplify.c (enum gimplify_omp_var_data): Add GOVD_REDUCTION_INSCAN.
        (is_gimple_stmt): Handle OMP_SCAN.
        (gimplify_scan_omp_clauses): Reject inscan reductions on constructs
        other than OMP_FOR or OMP_SIMD.  Handle OMP_CLAUSE_{IN,EX}CLUSIVE.
        (gimplify_adjust_omp_clauses): Diagnose inscan reductions not
        mentioned in nested #pragma omp scan.  Handle
        OMP_CLAUSE_{IN,EX}CLUSIVE.
        (gimplify_expr): Handle OMP_SCAN.
        * omp-low.c (check_omp_nesting_restrictions): For parent context,
        look through GIMPLE_OMP_SCAN context.  Allow #pragma omp scan in
        simd constructs.
        (scan_omp_1_stmt, lower_omp_1, diagnose_sb_1, diagnose_sb_2): Handle
        GIMPLE_OMP_SCAN.

2019-06-10  Martin Liska  <mliska@suse.cz>

        * ipa-cp.c (ignore_edge_p): New function.
        (build_toporder_info): Use it.
        * ipa-inline.c (ignore_edge_p): New function.
        (inline_small_functions): Use it.
        * ipa-pure-const.c (ignore_edge_for_nothrow):
        Verify opt_for_fn for caller and callee.
        (ignore_edge_for_pure_const): Likewise.
        * ipa-reference.c (ignore_edge_p): Extend to check
        for opt_for_fn.
        * ipa-utils.c (searchc): Refactor.
        * ipa-utils.h: Fix coding style.

2019-06-10  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_rtx_costs): Update costs.

2019-06-10  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc-protos.h (arc_check_ior_const): Declare.
        (arc_split_ior): Likewise.
        (arc_check_mov_const): Likewise.
        (arc_split_mov_const): Likewise.
        * config/arc/arc.c (arc_print_operand): Fix 'z' letter.
        (arc_rtx_costs): Replace check Crr with Cax constraint.
        (prepare_move_operands): Cleanup, remove unused code.
        (arc_split_ior): New function.
        (arc_check_ior_const): Likewise.
        (arc_split_mov_const): Likewise.
        (arc_check_mov_const): Likewise.
        * config/arc/arc.md (movsi_insn): Restructure it, and convert it
        in define_insn_and_split pattern.
        (iorsi3): Likewise.
        (mulsi3_v2): Add new matching variant.
        (andsi3_i): Cleanup pattern.
        (rotrsi3_cnt1): Update pattern.
        (rotrsi3_cnt8): New pattern.
        (ashlsi2_cnt8): Likewise.
        (ashlsi2_cnt16): Likewise.
        * config/arc/constraints.md (C0p): Update constraint.
        (Crr): Remove it.
        (C0x): New pattern.
        (Cax): New pattern.

2019-06-10  Martin Liska  <mliska@suse.cz>

        * ipa-icf.c (sem_item_optimizer::parse_nonsingleton_classes):
        Update coding style.
        (sem_item_optimizer::dump_cong_classes):
        Print how many items are in a non-singular class.  Improve
        coding style.

2019-06-10  Martin Liska  <mliska@suse.cz>

        * value-prof.c (dump_histogram_value): Change dump format.
        (gimple_mod_subtract_transform): Remove legacy comment.

2019-06-10  Martin Liska  <mliska@suse.cz>

        * value-prof.c (dump_histogram_value): Print histogram values
        only if present.

2019-06-10  Martin Liska  <mliska@suse.cz>

        * gcov-io.h (GCOV_DISK_SINGLE_VALUES): New.
        (GCOV_SINGLE_VALUE_COUNTERS): Likewise.
        * ipa-profile.c (ipa_profile_generate_summary):
        Use get_most_common_single_value.
        * tree-profile.c (gimple_init_gcov_profiler):
        Instrument with __gcov_one_value_profiler_v2
        and __gcov_indirect_call_profiler_v4.
        * value-prof.c (dump_histogram_value):
        Print all values for HIST_TYPE_SINGLE_VALUE.
        (stream_out_histogram_value): Update assert for
        N values.
        (stream_in_histogram_value): Set number of
        counters for HIST_TYPE_SINGLE_VALUE.
        (get_most_common_single_value): New.
        (gimple_divmod_fixed_value_transform):
        Use get_most_common_single_value.
        (gimple_ic_transform): Likewise.
        (gimple_stringops_transform): Likewise.
        (gimple_find_values_to_profile): Set number
        of counters for HIST_TYPE_SINGLE_VALUE.
        * value-prof.h (get_most_common_single_value): New.

2019-06-10  Martin Liska  <mliska@suse.cz>

        * hash-map.h: Pass default value to hash_table ctor.
        * hash-table.h: Add default value to call of a ctor.

2019-06-08  Jonathan Wakely  <jwakely@redhat.com>

        * doc/invoke.texi (C Dialect Options): Minor grammatical change.
        (x86 Options): Replace all uses of "PCL_MUL" with "PCLMUL"

2019-06-07  John David Anglin  <danglin@gcc.gnu.orig>

        PR target/90751
        * config/pa/pa-linux.h (ASM_DECLARE_FUNCTION_NAME): Update comment.
        Call pa_output_function_label.
        (TARGET_ASM_FUNCTION_PROLOGUE): define.
        * config/pa/pa-protos.h (pa_output_function_label): Declare.
        * config/pa/pa.c (pa_output_function_prologue): Add ATTRIBUTE_UNUSED
        to declaration.
        (pa_linux_output_function_prologue): Declare.
        (TARGET_ASM_FUNCTION_PROLOGUE): Delete define.
        (pa_output_function_label): New.
        (pa_output_function_prologue): Revise to use pa_output_function_label.
        (pa_linux_output_function_prologue): New.
        * config/pa/pa.h (TARGET_ASM_FUNCTION_PROLOGUE): Define.

2019-06-07  Aldy Hernandez  <aldyh@redhat.com>

        * tree-vrp.h (value_range_base::intersect): New.
        (value_range::intersect_helper): Move from here...
        (value_range_base::intersect_helper): ...to here.
        * tree-vrp.c (value_range::intersect_helper): Rename to...
        (value_range_base::intersect_helper): ...this, and rewrite to
        return a value instead of modifying THIS in place.
        Also, move equivalence handling...
        (value_range::intersect): ...here, while calling intersect_helper.
        * gimple-fold.c (size_must_be_zero_p): Use value_range_base when
        calling intersect.
        * gimple-ssa-evrp-analyze.c (ecord_ranges_from_incoming_edge):
        Same.
        * vr-values.c (vrp_evaluate_conditional_warnv_with_ops): Same.

2019-06-07  Jakub Jelinek  <jakub@redhat.com>

        * Makefile.in (genprogerr): Add condmd.
        (genprog): Remove it here.

2019-06-07  Andrew Stubbs  <ams@codesourcery.com>

        * doc/invoke.texi (AMD GCN Options): Add gfx906.

2019-06-07  Richard Biener  <rguenther@suse.de>

        PR debug/90574
        * tree-cfg.c (stmt_starts_bb_p): Split blocks at labels
        that appear after user labels.

2019-06-07  Martin Liska  <mliska@suse.cz>

        * cselib.c (cselib_init): Disable hash table
        sanitization.
        * hash-set.h: Pass new default argument to m_table.
        * hash-table.c: Add global variable with hash table
        sanitization limit.
        * hash-table.h (Allocator>::hash_table): Add new argument
        to ctor.
        (hashtab_chk_error): New.
        * params.def (PARAM_HASH_TABLE_VERIFICATION_LIMIT): New.
        * toplev.c (process_options): Set hash_table_sanitize_eq_limit
        from the PARAM_HASH_TABLE_VERIFICATION_LIMIT value.

2019-06-07  Jan Hubicka  <hubicka@ucw.cz>

        * common.opt (flto-odr-type-merging): Ignore.
        * invoke.texi (-flto-odr-type-merging): Remove.
        * ipa-devirt.c (odr_vtable_hasher:odr_name_hasher): Remove.
        (can_be_vtable_hashed_p): Remove.
        (hash_odr_vtable): Remove.
        (odr_vtable_hasher::hash): Remove.
        (types_same_for_odr): Remove.
        (types_odr_comparable): Remove.
        (odr_vtable_hasher::equal): Remove.
        (odr_vtable_hash_type, odr_vtable_hash): Remove.
        (add_type_duplicate): Do not synchronize vtable and name hashtables.
        (get_odr_type): Do not use vtable hash.
        (dump_odr_type): Remove commented out code.
        (build_type_inheritance_graph): Do not allocate vtable hash.
        (rebuild_type_inheritance_graph): Do not delete vtable hash.
        * ipa-utils.h (type_with_linkage_p): Drop vtable hash path.
        (odr_type_p): Likewise.
        * tree.c (need_assembler_name_p): Remove flag_lto_odr_type_mering
        test.

2019-06-07  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-alias.c (aliasing_component_refs_p): Do not give up
        immediately after same_types_for_tbaa_p returns -1 and continue
        looking for possible exact match; if matching types are arrays
        watch for partial overlaps.
        (indirect_ref_may_alias_decl_p): Watch for partial array overlaps.
        (indirect_refs_may_alias_p): Do type based disambiguation first;
        update comment.

2019-06-07  Richard Sandiford  <richard.sandiford@arm.com>

        * fwprop.c (propagate_rtx): Fix call to paradoxical_subreg_p.

2019-06-07  Martin Liska  <mliska@suse.cz>

        * doc/invoke.texi: Remove param.
        * gcov-counter.def (GCOV_COUNTER_ICALL_TOPNV):
        Remove.
        * gcov-io.h (GCOV_ICALL_TOPN_VAL): Likewise.
        (GCOV_ICALL_TOPN_NCOUNTS): Likewise.
        * params.def (PARAM_INDIR_CALL_TOPN_PROFILE): Likewise.
        * profile.c (instrument_values): Remove
        HIST_TYPE_INDIR_CALL_TOPN.
        * tree-profile.c (init_ic_make_global_vars):
        Always build __gcov_indirect_call only.
        (gimple_init_gcov_profiler): Remove usage
        of PARAM_INDIR_CALL_TOPN_PROFILE.
        (gimple_gen_ic_profiler): Likewise.
        * value-prof.c (dump_histogram_value): Likewise.
        (stream_in_histogram_value): Likewise.
        (gimple_indirect_call_to_profile): Likewise.
        (gimple_find_values_to_profile): Likewise.
        * value-prof.h (enum hist_type): Likewise.

2019-06-07  Martin Liska  <mliska@suse.cz>

        * tree-ssa-loop.c (get_lsm_tmp_name): Return at the end of the
        function.

2019-06-07  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/78902
        * builtin-attrs.def (ATTR_WARN_UNUSED_RESULT): New.
        (ATTR_MALLOC_NOTHROW_LEAF_LIST): Remove.
        (ATTR_WARN_UNUSED_RESULT_NOTHROW_LEAF_LIST): New.
        (ATTR_MALLOC_WARN_UNUSED_RESULT_NOTHROW_LEAF_LIST): New.
        (ATTR_ALLOC_SIZE_2_NOTHROW_LIST): Remove.
        (ATTR_MALLOC_SIZE_1_NOTHROW_LEAF_LIST): Remove.
        (ATTR_MALLOC_WARN_UNUSED_RESULT_NOTHROW_LIST): New.
        (ATTR_ALLOC_WARN_UNUSED_RESULT_SIZE_2_NOTHROW_LIST): New.
        (ATTR_MALLOC_WARN_UNUSED_RESULT_SIZE_1_NOTHROW_LEAF_LIST): New.
        (ATTR_ALLOCA_SIZE_1_NOTHROW_LEAF_LIST): Remove.
        (ATTR_ALLOCA_WARN_UNUSED_RESULT_SIZE_1_NOTHROW_LEAF_LIST): New.
        (ATTR_MALLOC_SIZE_1_2_NOTHROW_LEAF_LIST): Remove.
        (ATTR_MALLOC_WARN_UNUSED_RESULT_SIZE_1_2_NOTHROW_LEAF_LIST):
        New.
        (ATTR_ALLOC_SIZE_2_NOTHROW_LEAF_LIST): Remove.
        (ATTR_ALLOC_WARN_UNUSED_RESULT_SIZE_2_NOTHROW_LEAF_LIST): New.
        (ATTR_MALLOC_NOTHROW_NONNULL): Remove.
        (ATTR_WARN_UNUSED_RESULT_NOTHROW_NONNULL): New.
        (ATTR_MALLOC_WARN_UNUSED_RESULT_NOTHROW_NONNULL): New.
        (ATTR_MALLOC_NOTHROW_NONNULL_LEAF): Remove.
        (ATTR_WARN_UNUSED_RESULT_NOTHROW_NONNULL_LEAF): New.
        (ATTR_MALLOC_WARN_UNUSED_RESULT_NOTHROW_NONNULL_LEAF): New.
        * builtins.def (BUILT_IN_ALIGNED_ALLOC): Change to use
        warn_unused_result attribute.
        (BUILT_IN_STRDUP): Likewise.
        (BUILT_IN_STRNDUP): Likewise.
        (BUILT_IN_ALLOCA): Likewise.
        (BUILT_IN_CALLOC): Likewise.
        (BUILT_IN_MALLOC): Likewise.
        (BUILT_IN_REALLOC): Likewise.

2019-06-06  Jim Wilson  <jimw@sifive.com>

        PR target/89955
        * config/riscv/riscv.h (STARTFILE_PREFIX_SPEC): Deleted.
        * config/riscv/freebsd.h (STARTFILE_PREFIX_SPEC): Added.
        * config/riscv/linux.h (STARTFILE_PREFIX_SPEC): Added.

2019-06-06  Martin Sebor  <msebor@redhat.com>

        * tree-ssa-strlen.c (adjust_related_strinfos): Avoid trailing article.
        (handle_builtin_malloc): Remove trailing spaces.
        (handle_builtin_memset): Same.
        (handle_builtin_memcmp): Same.
        (compute_string_length): Same.
        (determine_min_objsize): Same.
        (handle_builtin_string_cmp): Same.
        (handle_char_store): Same.  Break up excessively long line.

2019-06-06  Martin Jambor  <mjambor@suse.cz>

        * tree-sra.c (build_reconstructed_reference): Drop the alignment
        check.

2019-06-06  Martin Jambor  <mjambor@suse.cz>

        * tree-sra.c (struct access): New field grp_same_access_path.
        (dump_access): Dump it.
        (build_reconstructed_reference): New function.
        (build_ref_for_model): Use it if possible.
        (path_comparable_for_same_access): New function.
        (same_access_path_p): Likewise.
        (sort_and_splice_var_accesses): Set the new flag.
        (analyze_access_subtree): Likewise.
        (propagate_subaccesses_across_link): Propagate zero value of the new
        flag down the access tree.

2019-06-06  Andrew Stubbs  <ams@codesourcery.com>

        * config.gcc (amdgcn-*-*): Allow --with-arch=gfx906.
        * config/gcn/gcn.opt (gpu_type): Add gfx906.
        * config/gcn/t-gcn-hsa (MULTILIB_OPTIONS): Add gfx906 multilib.
        (MULTILIB_DIRNAMES): Rename gcn5 to gfx900.
        Add gfx906.

2019-06-06  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        PR tree-optimization/90332
        * config/aarch64/aarch64.c (aarch64_expand_vector_init):
        Handle VALS containing two vectors.
        * config/aarch64/aarch64-simd.md (*aarch64_combinez<mode>): Rename
        to...
        (@aarch64_combinez<mode>): ... This.
        (*aarch64_combinez_be<mode>): Rename to...
        (@aarch64_combinez_be<mode>): ... This.
        (vec_init<mode><Vhalf>): New define_expand.
        * config/aarch64/iterators.md (Vhalf): Handle V8HF.

2019-06-06  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        * config/msp430/msp430.md (ashlhi3): Use the const_variant of shift
        library functions only when not optimizing for size.
        (ashlsi3): Likewise.
        (ashrhi3): Likewise.
        (ashrsi3): Likewise.
        (lshrhi3): Likewise.
        (lshrsi3): Likewise.

2019-06-06  Andreas Krebbel  <krebbel@linux.ibm.com>

        PR rtl-optimization/88751
        * ira.c (ira): Use the number of the actually referenced registers
        when calculating the threshold.

2019-06-06  Jakub Jelinek  <jakub@redhat.com>

        * configure: Regenerate.

2019-06-06  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

        * config/msp430/msp430.md (ashlhi3): Force shift src operand into a
        register if it is in memory, so the shift can be emulated with a rotate
        instruction.
        (ashrhi3): Likewise.
        (lshrhi3): Likewise.

2019-06-06  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/87954
        * match.pd: Simplify mult where both arguments are 0 or 1.

2019-06-06  Richard Biener  <rguenther@suse.de>

        * vr-values.c (vr_values::extract_range_from_ssa_name): Do not
        put equivalences on UNDEFINED ranges.
        * gimple-ssa-evrp.c (evrp_dom_walker::before_dom_children):
        Make sure to drop defs of stmts added during simplification
        to VARYING.

2019-06-06  Richard Biener  <rguenther@suse.de>

        * tree-ssa-structalias.c: Include tree-cfg.h.
        (make_heapvar): Do not make heap vars artificial.
        (find_func_aliases_for_builtin_call): Handle stack allocation
        functions.
        (find_func_aliases): Delay processing of simple enough returns
        in non-IPA mode.
        (set_uids_in_ptset): Adjust.
        (find_what_var_points_to): Likewise.
        (solve_constraints): Do not dump points-to sets here.
        (compute_points_to_sets): Post-process return statements,
        amending the escaped solution.  Dump points-to sets afterwards.
        (ipa_pta_execute): Dump points-to sets.

2019-06-06  Martin Liska  <mliska@suse.cz>

        PR web/87933
        * doc/install.texi: Fix HTML headers and
        titles for 'Installing GCC' pages.

2019-06-06  Martin Liska  <mliska@suse.cz>

        * ipa-icf-gimple.h (dump_message_1): Remove.
        (dump_message): Likewise.
        (return_false_with_message_1): Print also file.
        (return_false_with_msg): Likewise.
        (return_with_result): Likewise.
        (return_with_debug): Likewise.
        * ipa-icf.c (sem_function::equals_private): Remove call
        to dump_message.

2019-06-05  Hongtao Liu  <hongtao.liu@intel.com>

        * config/i386/sse.md (define_mode_suffix vecmemsuffix): New.
        (define_insn "avx512dq_fpclass<mode><mask_scalar_merge_name>"): Enable
        memory operand for it.
        (define_insn "avx512dq_vmfpclass<mode><mask_scalar_merge_name>"): Ditto.

2019-06-05  Martin Sebor  <msebor@redhat.com>

        * config/i386/i386-features.c (ix86_get_function_versions_dispatcher):
        Adjust quoting and hyphenation.
        * convert.c (convert_to_real_1): Same.
        * gcc.c (driver_wrong_lang_callback): Same.
        (driver::handle_unrecognized_options): Same.
        * gimple-ssa-nonnull-compare.c (do_warn_nonnull_compare): Same.
        * opts-common.c (cmdline_handle_error): Same.
        (read_cmdline_option): Same.
        * opts-global.c (complain_wrong_lang): Same.
        (print_ignored_options): Same.
        (handle_common_deferred_options): Same.
        * pretty-print.h: Same.
        * print-rtl.c (debug_bb_n_slim): Same.
        * sched-rgn.c (make_pass_sched_fusion): Same.
        * tree-cfg.c (verify_gimple_assign_unary): Same.
        (verify_gimple_label): Same.
        * tree-ssa-operands.c (verify_ssa_operands): Same.
        * varasm.c (do_assemble_alias): Same.
        (assemble_alias): Same.

2019-06-05  Richard Henderson  <rth@twiddle.net>

        * config/alpha/alpha.c (direct_return): Move down after
        struct machine_function definition; use saved frame_size;
        return bool.
        (struct machine_function): Add sa_mask, sa_size, frame_size.
        (alpha_sa_mask, alpha_sa_size, compute_frame_size): Merge into ...
        (alpha_compute_frame_layout): ... new function.
        (TARGET_COMPUTE_FRAME_LAYOUT): New.
        (alpha_initial_elimination_offset): Use saved sa_size.
        (alpha_vms_initial_elimination_offset): Likewise.
        (alpha_vms_can_eliminate): Remove alpha_sa_size call.
        (alpha_expand_prologue): Use saved frame data.  Merge integer
        and fp register save loops.
        (alpha_expand_epilogue): Likewise.
        (alpha_start_function): Use saved frame data.
        * config/alpha/alpha-protos.h (direct_return): Update.
        (alpha_sa_size): Remove.

2019-06-05  Eric Botcazou  <ebotcazou@adacore.com>

        * fold-const.c (extract_muldiv_1) <PLUS_EXPR>: Do not distribute a
        multiplication by a power-of-two value.
        (fold_plusminus_mult_expr): Use pow2p_hwi to spot a power-of-two value
        and turn the modulo operation into a masking operation.

2019-06-05  Jakub Jelinek  <jakub@redhat.com>

        PR debug/90733
        * var-tracking.c (vt_expand_loc_callback): Don't create raw subregs
        with VOIDmode inner operands.

2019-06-05  Richard Biener  <rguenther@suse.de>

        PR middle-end/90726
        * tree-ssa-loop-niter.c (expand_simple_operations): Do not
        turn an expression graph into a tree.

2019-06-05  Jakub Jelinek  <jakub@redhat.com>

        * omp-expand.c (struct omp_region): Add has_lastprivate_conditional
        member.
        (expand_parallel_call): If region->inner->has_lastprivate_conditional,
        treat it like explicit monotonic schedule modifier.
        (expand_omp_for): Initialize has_lastprivate_conditional.
        If fd.lastprivate_conditional != 0, treat it like explicit monotonic
        schedule modifier.

        * omp-low.c (lower_rec_input_clauses): For lastprivate conditional
        references, lookup in in hash map MEM_REF operand instead of the
        MEM_REF itself.
        (lower_omp_1): When looking for lastprivate conditional assignments,
        handle MEM_REFs with REFERENCE_TYPE operands.

        * omp-low.c (lower_rec_input_clauses): Force max_vf if is_simd and
        on privatization clauses OMP_CLAUSE_DECL is privatized by reference
        and references a VLA.  Handle references to non-VLAs if is_simd
        all privatization clauses like reductions.
        (lower_rec_input_clauses) <case do_private, case do_firstprivate>:
        If omp_is_reference, use always omp simd arrays and set
        DECL_VALUE_EXPR in that case, if lower_rec_simd_input_clauses
        fails, emit reference initialization.

2019-06-05  Hongtao Liu  <hongtao.liu@intel.com>

        PR target/89803
        * config/i386/avx512dqintrin.h (_mm_mask_fpclass_ss_mask,
        _mm_mask_fpclass_sd_mask): New intrinsics.
        (_mm_fpclass_ss_mask, _mm_fpclass_sd_mask): Modified, use new builtins.
        * config/i386/i386-builtin.def
        (__builtin_ia32_fpclassss_mask, __builtin_ia32_fpclasssd_mask):
        New builtins.
        (__builtin_ia32_fpclassss, __builtin_ia32_fpclasssd): Deleted.
        * config/i386/i386-builtin-types.def (DEF_FUNCTION_TYPE (QI, V2DF, INT),
        DEF_FUNCTION_TYPE (QI, V4SF, INT)): Deleted.
        * config/i386/i386-expand.c (case QI_FTYPE_V4SF_INT,
        case QI_FTYPE_V2SF_INT): Ditto.
        * config/i386/sse.md
        (define_insn "avx512dq_vmfpclass<mode><mask_scalar_merge_name>):
        Extended to insnstructions with mask operands.

2019-06-04  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/constraints.md (define_register_constraint "wp"):
        Delete.
        (define_register_constraint "wq"): Delete.
        * config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
        (rs6000_init_hard_regno_mode_ok): Adjust.
        * config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
        RS6000_CONSTRAINT_wp and RS6000_CONSTRAINT_wq.
        * config/rs6000/vsx.md (define_mode_attr VSr3): Delete.
        (define_mode_attr VSa): Delete.
        (define_mode_attr VSisa): New.
        (rest of file): Adjust.
        * doc/md.texi (Machine Constraints): Adjust.

2019-06-04  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (define_attr "isa"): Add p9kf and p9tf.
        (define_attr "enabled"): Handle those new isa values.

2019-06-04  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/vsx.md (define_mode_attr VSr4): Delete.
        (define_mode_attr VSr5): Delete.
        (define_mode_attr VStype_sqrt): Delete.
        (define_mode_iterator VSX_SPDP): Delete.
        (define_mode_attr VS_spdp_res): Delete.
        (define_mode_attr VS_spdp_insn): Delete.
        (define_mode_attr VS_spdp_type): Delete.
        (*vsx_sqrt<mode>2): Adjust.
        (vsx_<VS_spdp_insn>): Delete, split to...
        (vsx_xscvdpsp): ... this.  New.  And...
        (vsx_xvcvspdp): ... this.  New.  And...
        (vsx_xvcvdpsp): ... this.  New.

2019-06-04  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (define_mode_attr sd): Add values for V4SF
        and V2DF.
        * config/rs6000/vsx.md (define_mode_attr VSs): Delete.
        (rest of file): Adjust.

2019-06-04  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/vsx.md (vsx_<VS_spdp_insn>): Use wa instead of <VSa>.
        (vsx_extract_<mode>_var): Ditto.

2019-06-04  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/vsx.md: Replace all <VSa> that are used with VSX_TI
        with just "wa".

2019-06-04  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/constraints.md (define_register_constraint "ww"):
        Delete.
        * config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
        (rs6000_init_hard_regno_mode_ok): Adjust.
        * config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
        RS6000_CONSTRAINT_ww.
        * config/rs6000/rs6000.md: Adjust.
        * config/rs6000/vsx.md: Adjust.
        * doc/md.texi (Machine Constraints): Adjust.

2019-06-04  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (SFDF, SFDF2): Adjust comments.
        (define_mode_attr sd): New.
        (define_mode_attr s): New.
        (define_mode_attr Ftrad): Delete.
        (define_mode_attr Fvsx): Delete.
        (define_mode_attr Fs): Delete.
        (rest of file): Use the new mode attributes.
        * config.rs6000/vsx.md: Use the new mode attributes.

2019-06-04  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/vsx.md: Replace all <VSa> that are used with VSX_W
        with just "wa".

2019-06-04  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/vsx.md (define_mode_attr VSr2): Delete.
        (rest of file): Replace all <VSa>, <VSr>, <VSr2>, and <VSr3> that are
        used with VSX_B, VSX_D, or VSX_F, with just "wa".

2019-06-04  Bill Schmidt  <wschmidt@linux.ibm.com>

        PR target/78263
        * config/rs6000/altivec.h: Don't #define vector, pixel, bool for
        C++ with strict ANSI requirements.

2019-06-04  Marc Glisse  <marc.glisse@inria.fr>

        * tree-ssa-loop-niter.c (number_of_iterations_ne): Skip
        computations when step is 1.

2019-06-04  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/constraints.md (define_register_constraint "wf"):
        Delete.
        * config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
        (rs6000_init_hard_regno_mode_ok): Adjust.
        * config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
        RS6000_CONSTRAINT_wf.
        * config/rs6000/rs6000.md: Adjust.
        * config/rs6000/vsx.md: Adjust.
        * doc/md.texi (Machine Constraints): Adjust.

2019-06-04  Andrew Pinski  <apinski@marvell.com>

        * config/aarch64/aarch64.c (aarch64_asan_shadow_offset):
        Fix ILP32 value.

2019-06-04  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/constraints.md (define_register_constraint "wd"):
        Delete.
        * config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
        (rs6000_init_hard_regno_mode_ok): Adjust.
        * config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
        RS6000_CONSTRAINT_wd.
        * config/rs6000/rs6000.md: Adjust.
        * config/rs6000/vsx.md: Adjust.
        * doc/md.texi (Machine Constraints): Adjust.

2019-06-04  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (define_mode_attr Fv2): Delete.
        (rest of file): Adjust.

2019-06-04  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/vsx.md (define_mode_attr VS_64reg): Delete.
        (*vsx_extract_<P:mode>_<VSX_D:mode>_load): Adjust.
        (vsx_splat_<mode>_reg): Adjust.

2019-06-04  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/constraints.md (define_register_constraint "ws"):
        Delete.
        * config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
        (rs6000_init_hard_regno_mode_ok): Adjust.
        * config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
        RS6000_CONSTRAINT_ws.
        * config/rs6000/rs6000.md: Adjust.
        * config/rs6000/vsx.md: Adjust.
        * doc/md.texi (Machine Constraints): Adjust.

2019-06-04  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/constraints.md (define_register_constraint "wv"):
        Delete.
        * config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
        (rs6000_init_hard_regno_mode_ok): Adjust.
        * config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
        RS6000_CONSTRAINT_wv.
        * config/rs6000/rs6000.md: Adjust.
        * config/rs6000/vsx.md: Adjust.
        * doc/md.texi (Machine Constraints): Adjust.

2019-06-04  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/constraints.md (define_register_constraint "wi"):
        Delete.
        (define_register_constraint "wt"): Delete.
        * config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
        (rs6000_init_hard_regno_mode_ok): Adjust.
        * config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
        RS6000_CONSTRAINT_wi and RS6000_CONSTRAINT_wt.
        * config/rs6000/rs6000.md: Adjust.
        * config/rs6000/vsx.md: Adjust.
        * doc/md.texi (Machine Constraints): Adjust.

2019-06-04  Szabolcs Nagy  <szabolcs.nagy@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_asm_output_external): Remove
        const.
        * config/aarch64/aarch64.c (aarch64_asm_output_external): Call
        default_elf_asm_output_external.

2019-06-04  Martin Liska  <mliska@suse.cz>

        * ipa-icf.c (INCLUDE_LIST): Remove.
        (sem_item_optimizer::execute): Remove call to init_wpa.
        * ipa-icf.h (init_wpa): Remove.

2019-06-04  Jakub Jelinek  <jakub@redhat.com>

        * gimplify.c (gimplify_scan_omp_clauses): Don't sorry_at on lastprivate
        conditional on combined for simd.
        * omp-low.c (struct omp_context): Add combined_into_simd_safelen0
        member.
        (lower_rec_input_clauses): For gimple_omp_for_combined_into_p max_vf 1
        constructs, don't remove lastprivate_conditional_map, but instead set
        ctx->combined_into_simd_safelen0 and adjust hash_map, so that it points
        to parent construct temporaries.
        (lower_lastprivate_clauses): Handle ctx->combined_into_simd_safelen0
        like !ctx->lastprivate_conditional_map.
        (lower_omp_1) <case GIMPLE_ASSIGN>: If up->combined_into_simd_safelen0,
        use up->outer context instead of up.
        * omp-expand.c (expand_omp_for_generic): Perform cond_var bump even if
        gimple_omp_for_combined_p.
        (expand_omp_for_static_nochunk): Likewise.
        (expand_omp_for_static_chunk): Add forgotten cond_var bump that was
        probably moved over into expand_omp_for_generic rather than being copied
        there.

2019-06-04  Martin Liska  <mliska@suse.cz>

        * value-prof.c (dump_histogram_value): Fix typo.
        (gimple_mod_subtract_transform): Likewise.

2019-06-04  Richard Biener  <rguenther@suse.de>

        PR middle-end/90726
        * tree-chrec.c (chrec_contains_symbols): Add to visited.
        (tree_contains_chrecs): Likewise.
        (chrec_contains_symbols_defined_in_loop): Move here and avoid
        exponential behaivor from ...
        * tree-scalar-evolution.c (chrec_contains_symbols_defined_in_loop):
        ... here.
        (expression_expensive_p): Avoid exponential behavior and compute
        expanded size, rejecting any expansion.
        * tree-ssa-loop-ivopts.c (abnormal_ssa_name_p): Remove.
        (idx_contains_abnormal_ssa_name_p): Likewise.
        (contains_abnormal_ssa_name_p_1): New helper for walk_tree.
        (contains_abnormal_ssa_name_p): Simplify and use
        walk_tree_without_duplicates.

2019-06-04  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90738
        Revert
        2019-06-03  Richard Biener  <rguenther@suse.de>

        * tree-ssa-sccvn.c (ao_ref_init_from_vn_reference): Get original
        full reference tree and record in ref->ref.
        (vn_reference_lookup_3): Pass in original ref to
        ao_ref_init_from_vn_reference.
        (vn_reference_lookup): Likewise.
        * tree-ssa-sccvn.h (ao_ref_init_from_vn_reference): Adjust prototype.
        * tree-ssa-alias.c (nonoverlapping_component_refs_of_decl_p):
        Handle non-decl bases in the original reference.

2019-06-04  Martin Liska  <mliska@suse.cz>

        * ipa-icf.c (sem_item_optimizer::add_item_to_class): Count
        number of references.
        (sem_item_optimizer::do_congruence_step):
        (sem_item_optimizer::worklist_push): Dump how references
        a class has.
        (sem_item_optimizer::worklist_pop): Use heap.
        (sem_item_optimizer::process_cong_reduction): Likewise.
        * ipa-icf.h: Use fibonacci_heap insteam of std::list.

2019-06-04  Martin Liska  <mliska@suse.cz>

        * ipa-icf.h (struct sem_usage_pair_hash): New.
        (sem_usage_pair_hash::hash): Likewise.
        (sem_usage_pair_hash::equal): Likewise.
        (struct sem_usage_hash): Likewise.
        * ipa-icf.c (sem_item::sem_item): Initialize
        referenced_by_count.
        (sem_item::add_reference): Register a reference
        in ref_map and not in target->usages.
        (sem_item::setup): Remove initialization of
        dead vectors.
        (sem_item::~sem_item): Remove usage of dead vectors.
        (sem_item::dump): Remove dump of references.
        (sem_item_optimizer::sem_item_optimizer): Initialize
        m_references.
        (sem_item_optimizer::read_section): Remove useless
        dump.
        (sem_item_optimizer::parse_funcs_and_vars): Likewise here.
        (sem_item_optimizer::build_graph): Pass m_references
        to ::add_reference.
        (sem_item_optimizer::verify_classes): Remove usage of dead
        vectors.
        (sem_item_optimizer::traverse_congruence_split): Return true
        when a class is split.
        (sem_item_optimizer::do_congruence_step_for_index): Use
        hash_map for look up of (sem_item *, index). That brings
        significant speed up.
        (sem_item_optimizer::do_congruence_step): Return true
        when a split is done.
        (congruence_class::is_class_used): Use referenced_by_count.

2019-06-04  Alan Modra  <amodra@gmail.com>

        PR target/90689
        * config/rs6000/rs6000.c (rs6000_call_aix): Correct r271753 merge
        error.

2019-06-03  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.h (MASK_MFPGPR): Delete.
        * config/rs6000/rs6000.c (direct_move_p): Adjust.
        (rs6000_secondary_reload_simple_move): Adjust.
        (rs6000_opt_masks): Neuter the "mfpgpr" option.
        * config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Adjust.
        * config/rs6000/rs6000-cpus.def (ISA_2_5_MASKS_EMBEDDED): Adjust
        comment.
        (power6x): Adjust.
        * config/rs6000/rs6000.md (floatsi<mode>2_lfiwax): Adjust.
        (floatunssi<mode>2_lfiwzx): Adjust.
        (fix_trunc<mode>si2_stfiwx): Adjust.
        (fixuns_trunc<mode>si2_stfiwx): Adjust.
        * config/rs6000/rs6000.opt (mno-mfpgpr): New.
        (mfpgpr): Mark as deprecated.
        * doc/extend.texi (PowerPC Function Attributes): Delete mfpgpr.
        (Basic PowerPC Built-in Functions Available on ISA 2.05): Adjust.
        * doc/invoke.texi (RS/6000 and PowerPC Options): Delete -mmfpgpr.

2019-06-03  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/constraints.md (define_register_constraint "wg"):
        Delete.
        * config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
        RS6000_CONSTRAINT_wg.
        * config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
        (rs6000_init_hard_regno_mode_ok): Adjust.
        * config/rs6000/rs6000.md (*mov<mode>_softfloat32, *movdi_internal64):
        Delete "wg" alternatives.
        * doc/md.texi (Machine Constraints): Adjust.

2019-06-03  Alan Modra  <amodra@gmail.com>

        * bb-reorder.c (copy_bb_p): Don't overflow size calculation.
        (get_uncond_jump_length): Assert length less than INT_MAX and
        non-negative.

2019-06-03  Wilco Dijkstra  <wdijkstr@arm.com>

        PR middle-end/64242
        * builtins.c (expand_builtin_longjmp): Add frame clobbers and schedule
        block.
        (expand_builtin_nonlocal_goto): Likewise.

2019-06-03  Szabolcs Nagy  <szabolcs.nagy@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_asm_output_alias): Declare.
        (aarch64_asm_output_external): Declare.
        * config/aarch64/aarch64.c (aarch64_asm_output_variant_pcs): New.
        (aarch64_declare_function_name): Call aarch64_asm_output_variant_pcs.
        (aarch64_asm_output_alias): New.
        (aarch64_asm_output_external): New.
        * config/aarch64/aarch64.h (ASM_OUTPUT_DEF_FROM_DECLS): Define.
        (ASM_OUTPUT_EXTERNAL): Define.

2019-06-03  Aldy Hernandez  <aldyh@redhat.com>
        * tree-vrp.h (value_range_base::nonzero_p): New.
        (value_range_base::set_nonnull): Rename to...
        (value_range_base::set_nonzero): ...this.
        (value_range_base::set_null): Rename to...
        (value_range_base::set_zero): ...this.
        (value_range::set_nonnull): Remove.
        (value_range::set_null): Remove.
        * tree-vrp.c (range_is_null): Remove.
        (range_is_nonnull): Remove.
        (extract_range_from_binary_expr): Use value_range_base::*zero_p
        instead of range_is_*null.
        (extract_range_from_unary_expr): Same.
        (value_range_base::set_nonnull): Rename to...
        (value_range_base::set_nonzero): ...this.
        (value_range::set_nonnull): Remove.
        (value_range_base::set_null): Rename to...
        (value_range_base::set_zero): ...this.
        (value_range::set_null): Remove.
        (extract_range_from_binary_expr): Rename set_*null uses to
        set_*zero.
        (extract_range_from_unary_expr): Same.
        (union_helper): Same.
        * vr-values.c (get_value_range): Use set_*zero instead of
        set_*null.
        (vr_values::extract_range_from_binary_expr): Same.
        (vr_values::extract_range_basic): Same.

2019-06-03  Wilco Dijkstra  <wdijkstr@arm.com>

        PR driver/90684
        * opts.c (parse_and_check_align_values): Allow 4 alignment values.

2019-06-03  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/iterators.md (MAX_OPP): New code attr.
        * config/aarch64/aarch64-simd.md (*aarch64_<su>abd<mode>_3):
        Rename to...
        (aarch64_<su>abd<mode>_3): ... This.
        (<sur>sadv16qi): Add TARGET_DOTPROD expansion.

2019-06-03  Richard Biener  <rguenther@suse.de>

        * tree-ssa-sccvn.c (ao_ref_init_from_vn_reference): Get original
        full reference tree and record in ref->ref.
        (vn_reference_lookup_3): Pass in original ref to
        ao_ref_init_from_vn_reference.
        (vn_reference_lookup): Likewise.
        * tree-ssa-sccvn.h (ao_ref_init_from_vn_reference): Adjust prototype.
        * tree-ssa-alias.c (nonoverlapping_component_refs_of_decl_p):
        Handle non-decl bases in the original reference.

2019-06-03  Martin Liska  <mliska@suse.cz>

        * doc/generic.texi: Remove Java Trees.

2019-06-03  Martin Liska  <mliska@suse.cz>

        * fold-const.c (operand_equal_p): Fix typo as compare_tree_int
        returns 0 when operands are equal.

2019-06-03  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90716
        * tree-loop-distribution.c (destroy_loop): Process blocks in
        correct order.

2019-06-03  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR target/88837
        * vector-builder.h (vector_builder::count_dups): New method.
        * config/aarch64/aarch64-protos.h (aarch64_expand_sve_vector_init):
        Declare prototype.
        * config/aarch64/aarch64/sve.md (aarch64_sve_rev64<mode>): Use @.
        (vec_init<mode><Vel>): New pattern.
        * config/aarch64/aarch64.c (emit_insr): New function.
        (aarch64_sve_expand_vector_init_handle_trailing_constants): Likewise.
        (aarch64_sve_expand_vector_init_insert_elems): Likewise.
        (aarch64_sve_expand_vector_init_handle_trailing_same_elem): Likewise.
        (aarch64_sve_expand_vector_init): Define two overloaded functions.

2019-06-03  Alejandro Martinez  <alejandro.martinezvicente@arm.com>

        PR tree-optimization/90681
        * internal-fn.c (mask_load_direct): Mark as non-vectorizable again.
        * tree-vect-slp.c (vect_build_slp_tree_1): Add masked loads as a
        special case for SLP, but fail on non-groupped loads.

2019-06-03  Martin Liska  <mliska@suse.cz>

        * cfg.c (debug): Use TDF_DETAILS for debug and
        print edge info only once.

2019-06-02  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/90539
        * predict.def (PRED_FORTRAN_CONTIGUOUS): New predictor.

2019-06-01  Martin Sebor  <msebor@redhat.com>

        PR middle-end/90694
        * tree-pretty-print.c (dump_generic_node): Add parentheses.

2019-05-31  Jan Hubicka  <jh@suse.cz>

        * alias.c: Include ipa-utils.h.
        (get_alias_set): Try to complete ODR type via ODR type hash lookup.
        * ipa-devirt.c (prevailing_odr_type): New.
        * ipa-utils.h (previaling_odr_type): Declare.

2019-05-31  H.J. Lu  <hongjiu.lu@intel.com>
            Hongtao Liu  <hongtao.liu@intel.com>

        PR target/89355
        * config/i386/i386-features.c (rest_of_insert_endbranch): Remove
        NOTE_INSN_DELETED_LABEL check.

2019-05-31  Prachi Godbole  <prachi.godbole@imgtec.com>
            Robert Suchanek  <robert.suchanek@mips.com>

        * config/mips/mips.c (mips_expand_builtin_insn): Swap the 1st
        and 3rd operands of the fmadd/fmsub/maddv builtin.

2019-05-31  Jakub Jelinek  <jakub@redhat.com>

        * tree.h (OMP_CLAUSE__CONDTEMP__ITER): Define.
        * gimplify.c (gimplify_scan_omp_clauses): Allow lastprivate conditional
        on OMP_SIMD if not nested inside of worksharing loop that also has
        lastprivate conditional clause for the same decl.
        (gimplify_omp_for): Add _condtemp_ clauses to OMP_SIMD if needed.
        * omp-low.c (scan_sharing_clauses): Handle OMP_CLAUSE__CONDTEMP_ also
        on simd.
        (lower_rec_input_clauses): Likewise.  Handle lastprivate conditional
        on simd construct.
        (lower_lastprivate_conditional_clauses): Handle lastprivate conditional
        on simd construct.
        (lower_lastprivate_clauses): Likewise.
        (lower_omp_sections): Call lower_lastprivate_conditional_clauses before
        calling lower_rec_input_clauses.
        (lower_omp_for): Likewise.
        (lower_omp_1): Use first rather than second OMP_CLAUSE__CONDTEMP_
        clause on simd construct.
        * omp-expand.c (expand_omp_simd): Initialize cond_var if
        OMP_CLAUSE__CONDTEMP_ clause is present.

        * omp-low.c (lower_rec_simd_input_clauses): Set TREE_THIS_NOTRAP on
        ivar and lvar.

2019-05-31  Xiong Hu Luo  <luoxhu@linux.ibm.com>

        PR c/43673
        * c-format.c (print_char_table, scanf_char_table): Replace BADLEN with
        TEX_D32, TEX_D64 or TEX_D128.

2019-05-31  Marc Glisse  <marc.glisse@inria.fr>

        * match.pd (~(vec?cst1:cst2)): New transformation.

2019-05-31  Marc Glisse  <marc.glisse@inria.fr>

        * match.pd (X/[ex]D<Y/[ex]D): Handle negative denominator.
        ((size_t)(A /[ex] B) CMP C): New transformation.

2019-05-31  Richard Sandiford  <richard.sandiford@arm.com>

        * doc/md.texi: Document define_insn_and_rewrite.
        * rtl.def (DEFINE_INSN_AND_REWRITE): New rtx code.
        * gensupport.c (queue_elem): Update comment.
        (replace_operands_with_dups): New function.
        (gen_rewrite_sequence): Likewise.
        (process_rtx): Handle DEFINE_INSN_AND_REWRITE.
        * read-rtl.c (apply_subst_iterator): Likewise.
        (add_condition_to_rtx, named_rtx_p): Likewise.
        (rtx_reader::read_rtx_operand): Likewise.
        * config/aarch64/aarch64-sve.md
        (while_ult<GPI:mode><PRED_ALL:mode>_cc): Rename to...
        (*while_ult<GPI:mode><PRED_ALL:mode>_cc): ...this and use
        define_insn_and_rewrite.
        (*cond_<optab><mode>_any): Turn into define_insn_and_rewrites.
        Remove separate define_split.

2019-05-31  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-alias.c (type_has_components_p): New function.
        (aliasing_component_refs_p): Use it.

2019-05-31  Martin Liska  <mliska@suse.cz>

        * gdbhooks.py: Add const_tree to TreePrinter.

2019-05-31  Thomas De Schampheleire  <thomas.de_schampheleire@nokia.com>

        PR debug/86964
        * common.opt (feliminate-unused-debug-symbols): Enable by default.
        * doc/invoke.texi (Debugging Options): Document new default of
        -feliminate-unused-debug-symbols and remove restriction to 'stabs'.

2019-05-31  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/90671
        * tree-ssa-threadupdate.c (ssa_create_duplicates): If
        template_block used to be empty on the first call, don't use
        gsi_split_seq_after and gsi_insert_seq_after, but remember whole
        seq with bb_seq and set it with set_bb_seq.

2019-05-31  Iain Sandoe  <iain@sandoe.co.uk>

        * config/i386/darwin.h (ASM_OUTPUT_MAX_SKIP_ALIGN): New.

2019-05-30  Bill Schmidt  <wschmidt@linux.ibm.com>
            Michael Meissner  <meissner@linux.ibm.com>

        * config/rs6000/predicates.md (pcrel_address): New define_predicate.
        (prefixed_mem_operand): Likewise.
        (non_prefixed_mem_operand): Likewise.
        * config/rs6000/rs6000-protos.h (rs6000_prefixed_address): New
        prototype.
        * config/rs6000/rs6000.c (print_operand_address): Handle
        PC-relative addresses.
        (mode_supports_prefixed_address_p): New function.
        (rs6000_prefixed_address): New function.
        * config/rs6000/rs6000.h (SYMBOL_FLAG_PCREL): New #define.
        (SYMBOL_REF_PCREL_P): Likewise.

2019-05-30  Jakub Jelinek  <jakub@redhat.com>

        * gimplify.c (enum gimplify_omp_var_data): Add GOVD_CONDTEMP.
        (gimplify_adjust_omp_clauses_1): Handle GOVD_CONDTEMP.
        (gimplify_omp_for): If worksharing loop with lastprivate conditional
        is nested inside of parallel region, add _condtemp_ clause to both.
        * tree-nested.c (convert_nonlocal_omp_clauses,
        convert_local_omp_clauses): Ignore OMP_CLAUSE__CONDTEMP_ instead of
        assertion failure.
        * omp-general.h (struct omp_for_data): Add have_pointer_condtemp
        member.
        * omp-general.c (omp_extract_for_data): Compute it.
        * omp-low.c (scan_sharing_clauses): Handle OMP_CLAUSE__CONDTEMP_.
        (lower_rec_input_clauses): Likewise.
        (lower_lastprivate_conditional_clauses): If OMP_CLAUSE__CONDTEMP_
        clause is already present, just add one further one after it.
        (lower_lastprivate_clauses): Handle cond_ptr with array type.
        (lower_send_shared_vars): Clear _condtemp_ vars.
        (lower_omp_1) <case GIMPLE_ASSIGN>: Handle target data like critical
        or section or taskgroup.
        * omp-expand.c (determine_parallel_type): Disallow combining only if
        first OMP_CLAUSE__CONDTEMP_ has pointer type.  Disallow combining
        of parallel sections if OMP_CLAUSE__CONDTEMP_ is present.
        (expand_omp_for_generic, expand_omp_for_static_nochunk,
        expand_omp_for_static_chunk, expand_omp_for): Use
        fd->have_pointer_condtemp instead of fd->lastprivate_conditional to
        determine if a special set of API routines are needed and if condtemp
        needs to be initialized, while always initialize cond_var if
        fd->lastprivate_conditional is non-zero.

2019-05-30  Bill Schmidt  <wschmidt@linux.ibm.com>
            Michael Meissner  <meissner@linux.ibm.com>

        * config/rs6000/constraints.md (eI): New constraint.
        * config/rs6000/predicates.md (cint34_operand): New predicate.
        * config/rs6000/rs6000.h (SIGNED_16BIT_OFFSET_P): New #define.
        (SIGNED_34BIT_OFFSET_P): Likewise.
        * doc/md.texi (eI): Document constraint.

2019-05-30  Sylvia Taylor  <sylvia.taylor@arm.com>

        * config/aarch64/aarch64-sve.md (*fabd<mode>3): New.

2019-05-30  Bill Schmidt  <wschmidt@linux.ibm.com>
            Michael Meissner  <meissner@linux.ibm.com>

        * rs6000-cpus.def (OTHER_FUSION_MASKS): New #define.
        (ISA_3_0_MASKS_SERVER): Mask off OTHER_FUSION_MASKS.
        (ISA_3_0_MASKS_IEEE): Remove OPTION_MASK_DIRECT_MOVE.
        (ISA_FUTURE_MASKS_SERVER): Add OPTION_MASK_PREFIXED_ADDR.
        (OTHER_FUTURE_MASKS): Likewise.
        (POWERPC_MASKS): Likewise.
        * rs6000.c (rs6000_option_override_internal): Error if -mpcrel is
        specified without -mprefixed-addr or -mcpu=future.  Error if
        -mprefixed-addr is specified without -mcpu=future.
        (rs6000_opt_masks): Add entry for prefixed-addr.
        * rs6000.opt (mprefixed-addr): New option.

2019-05-30  Sam Tebbs  <sam.tebbs@arm.com>

        * aarch64/aarch64.c (aarch64_post_cfi_startproc): Add
        cfun->is_thunk check.

2019-05-30  Jakub Jelinek  <jakub@redhat.com>

        * tree-predcom.c (is_inv_store_elimination_chain): Fix a typo - lenght
        to length.

2019-05-30  Martin Liska  <mliska@suse.cz>

        * gdbinit.in: Fix 'ptc' command.  Add trt
        that prints TREE_TYPE($).

2019-05-29  Bill Schmidt  <wschmidt@linux.ibm.com>
            Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (rs6000_call_template_1): Handle pcrel
        calls here...
        (rs6000_indirect_call_template_1): ...and here.
        (rs6000_pltseq_template): Handle plt_pcrel34.  Rework tocsave,
        plt16_ha, plt16_lo, mtctr indirect calls.  Use
        rs6000_pltseq_enum.
        (rs6000_decl_ok_for_sibcall): New function.
        (rs6000_function_ok_for_sibcall): Refactor.
        (rs6000_longcall_ref): Use UNSPEC_PLT_PCREL when pcrel.
        (rs6000_call_aix): Don't emit toc restore rtl for indirect calls
        when pcrel.  Reorganize.
        (rs6000_sibcall_aix): Don't add r2 to function usage when pcrel.
        * rs6000.h (rs6000_pltseq_enum): New enum.
        * rs6000.md (UNSPEC_PLT_PCREL): New unspec.
        (*pltseq_tocsave): Use rs6000_pltseq_enum.
        (*pltseq_plt16_ha): Likewise.
        (*pltseq_plt16_lo): Likewise.
        (*pltseq_mtctr): Likewise.
        (*pltseq_plt_pcrel): New insn.
        (*call_local_aix): Handle @notoc calls.
        (*call_value_local_aix): Likewise.
        (*call_nonlocal_aix): Adjust lengths for pcrel calls.
        (*call_value_nonlocal_aix): Likewise.
        (*call_indirect_pcrel): New insn.
        (*call_value_indirect_pcrel): Likewise.

2019-05-29  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (*save_multiple<mode>): Rename from
        save_multiple<mode>.
        (*restore_multiple<mode>): Rename from restore_multiple<mode>.
        (*restore_multiple_and_return<mode>): Rename from
        restore_multiple_and_return<mode>.
        (*restore_multiple_leave_return<mode>): Rename from
        restore_multiple_leave_return<mode>.

2019-05-29  Yoshinori Sato  <ysato@users.sourceforge.jp>

        * config.gcc (rx-*-linux*): New target.
        * config/rx/elf.opt: New file.
        * config/rx/linux.h: Likewise.
        * config/rx/t-linux: Likewise.
        * config/rx/rx.c (TARGET_SAVE_ACC_REGISTER): If not defined,
        make it zero.
        * config/rx/rx.h (ASM_APP_ON): Allow to be overridden.
        (ASM_APP_OFF): Likewise.
        * config/rx/rx.opt: Drop -msim and -mas100-syntax, they were
        moved elsewhere.

2019-05-29  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-alias.c (same_type_for_tbaa): Return ture if main
        variants are pointer equivalent.

2019-05-29  Alejandro Martinez  <alejandro.martinezvicente@arm.com>

        * config/aarch64/aarch64-c.c: Added TARGET_SVE2.
        * config/aarch64/aarch64-sve2.md: New file.
        (<u>avg<mode>3_floor): New pattern.
        (<u>avg<mode>3_ceil): Likewise.
        (*<sur>h<addsub><mode>): Likewise.
        * config/aarch64/aarch64.h: Added AARCH64_ISA_SVE2 and TARGET_SVE2.
        * config/aarch64/aarch64.md: Include aarch64-sve2.md.

2019-05-29  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/90543
        * optc-save-gen.awk: In cl_optimization_print, use correct condition
        for var_opt_string printing.  In cl_optimization_print_diff, print
        (null) instead of invoking undefined behavior if one of the
        var_opt_string pointers is NULL and use && instead of first || in the
        guarding condition.  For var_target_other options, handle const char *
        target variables similarly to const char * optimize node variables.

2019-05-29  Sam Tebbs  <sam.tebbs@arm.com>

        * config/aarch64/aarch64-builtins.c (aarch64_builtins): Add
        AARCH64_PAUTH_BUILTIN_AUTIB1716 and AARCH64_PAUTH_BUILTIN_PACIB1716.
        * config/aarch64/aarch64-builtins.c (aarch64_init_pauth_hint_builtins):
        Add autib1716 and pacib1716 initialisation.
        * config/aarch64/aarch64-builtins.c (aarch64_expand_builtin): Add checks
        for autib1716 and pacib1716.
        * config/aarch64/aarch64-protos.h (aarch64_key_type,
        aarch64_post_cfi_startproc): Define.
        * config/aarch64/aarch64-protos.h (aarch64_ra_sign_key): Define extern.
        * config/aarch64/aarch64.c (aarch64_handle_standard_branch_protection,
        aarch64_handle_pac_ret_protection): Set default sign key to A.
        * config/aarch64/aarch64.c (aarch64_expand_epilogue,
        aarch64_expand_prologue): Add check for b-key.
        * config/aarch64/aarch64.c (aarch64_ra_sign_key,
        aarch64_post_cfi_startproc, aarch64_handle_pac_ret_b_key): Define.
        * config/aarch64/aarch64.h (TARGET_ASM_POST_CFI_STARTPROC): Define.
        * config/aarch64/aarch64.c (aarch64_pac_ret_subtypes): Add "b-key".
        * config/aarch64/aarch64.md (unspec): Add UNSPEC_AUTIA1716,
        UNSPEC_AUTIB1716, UNSPEC_AUTIASP, UNSPEC_AUTIBSP, UNSPEC_PACIA1716,
        UNSPEC_PACIB1716, UNSPEC_PACIASP, UNSPEC_PACIBSP.
        * config/aarch64/aarch64.md (do_return): Add check for b-key.
        * config/aarch64/aarch64.md (<pauth_mnem_prefix>sp): Replace
        pauth_hint_num_a with pauth_hint_num.
        * config/aarch64/aarch64.md (<pauth_mnem_prefix>1716): Replace
        pauth_hint_num_a with pauth_hint_num.
        * config/aarch64/aarch64.opt (msign-return-address=): Deprecate.
        * config/aarch64/iterators.md (PAUTH_LR_SP): Add UNSPEC_AUTIASP,
        UNSPEC_AUTIBSP, UNSPEC_PACIASP, UNSPEC_PACIBSP.
        * config/aarch64/iterators.md (PAUTH_17_16): Add UNSPEC_AUTIA1716,
        UNSPEC_AUTIB1716, UNSPEC_PACIA1716, UNSPEC_PACIB1716.
        * config/aarch64/iterators.md (pauth_mnem_prefix): Add UNSPEC_AUTIA1716,
        UNSPEC_AUTIB1716, UNSPEC_PACIA1716, UNSPEC_PACIB1716, UNSPEC_AUTIASP,
        UNSPEC_AUTIBSP, UNSPEC_PACIASP, UNSPEC_PACIBSP.
        * config/aarch64/iterators.md (pauth_hint_num_a): Replace
        UNSPEC_PACI1716 and UNSPEC_AUTI1716 with UNSPEC_PACIA1716 and
        UNSPEC_AUTIA1716 respectively.
        * config/aarch64/iterators.md (pauth_hint_num_a): Rename to
        pauth_hint_num and add UNSPEC_PACIBSP, UNSPEC_AUTIBSP,
        UNSPEC_PACIB1716, UNSPEC_AUTIB1716.
        * doc/invoke.texi (-mbranch-protection): Add b-key type.
        * config/aarch64/aarch64-bti-insert.c (aarch64_pac_insn_p): Rename
        UNSPEC_PACISP to UNSPEC_PACIASP and UNSPEC_PACIBSP.

2019-05-29  Jakub Jelinek  <jakub@redhat.com>

        * gimplify.c (struct gimplify_omp_ctx): Add clauses member.
        (gimplify_scan_omp_clauses): Initialize ctx->clauses.
        (gimplify_adjust_omp_clauses_1): Transform lastprivate conditional
        explicit clause on combined parallel into implicit shared clause.
        (gimplify_adjust_omp_clauses): Move lastprivate conditional clause
        and firstprivate if the decl has one too from combined parallel to
        the worksharing construct.

2019-05-28  Bill Schmidt  <wschmidt@linux.ibm.com>
            Michael Meissner  <meissner@linux.ibm.com>

        * config/rs6000/rs6000-cpus.def (OTHER_FUTURES_MASK): New #define.

2019-05-28  Michael Meissner  <meissner@linux.ibm.com>

        * rtl.h (LABEL_REF_P): New #define.

2019-05-28  John David Anglin  <danglin@gcc.gnu.org>

        * config/pa/pa.c (hppa_profile_hook): Remove offset adjustment.

2019-05-28  Alejandro Martinez  <alejandro.martinezvicente@arm.com>

        * internal-fn.c: Marked mask_load_direct as vectorizable.
        * tree-data-ref.c (data_ref_compare_tree): Fixed comment typo.
        * tree-vect-data-refs.c (can_group_stmts_p): Allow masked loads to be
        combined even if masks different with allow_slp_p param.
        (vect_analyze_data_ref_accesses): Mark SLP only vectorizable groups.
        * tree-vect-loop.c (vect_dissolve_slp_only_groups): New function to
        dissolve SLP-only vectorizable groups when SLP has been discarded.
        (vect_analyze_loop_2): Call vect_dissolve_slp_only_groups when needed.
        * tree-vect-slp.c (vect_get_and_check_slp_defs): Check masked loads
        masks.
        (vect_build_slp_tree_1): Fixed comment typo.
        (vect_build_slp_tree_2): Include masks from masked loads in SLP tree.
        * tree-vect-stmts.c (vectorizable_load): Allow vectorizaion of masked
        loads for SLP only.
        * tree-vectorizer.h (_stmt_vec_info): Added flag for SLP-only
        vectorizable.
        * tree-vectorizer.c (vec_info::new_stmt_vec_info): Likewise.

2019-05-28  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/alpha/alpha.c [TARGET_ABI_OSF] (alpha_output_mi_thunk_osf):
        Remove obsolete use_thunk reference.
        * config/i386/i386.c (x86_output_mi_thunk): Likewise.
        * config/ia64/ia64.c (ia64_output_mi_thunk): Likewise.
        * config/nios2/nios2.c (nios2_asm_output_mi_thunk): Likewise.
        * config/or1k/or1k.c (or1k_output_mi_thunk): Likewise.
        * config/rs6000/rs6000.c (rs6000_output_mi_thunk): Likewise.
        * config/sh/sh.c (sh_output_mi_thunk): Likewise.
        * config/sparc/sparc.c (sparc_output_mi_thunk): Likewise.
        * config/tilegx/tilegx.c (tilegx_output_mi_thunk): Likewise.
        * config/tilepro/tilepro.c (tilepro_asm_output_mi_thunk): Likewise.

2019-05-28  Nathan Sidwell  <nathan@acm.org>

        * tree.h (IDENTIFIER_ANON_P): New.
        (anon_aggrname_format, anon_aggname_p): Don't declare.
        (make_anon_name): Declare.
        * lto-streamer-out.c (DFS::DFS_write_tree_body): Use IDENTIFIER_ANON_P.
        (hash_tree): Likewise.
        * tree-streamer-out.c (write_ts_decl_minimal_tree): Likewise.
        * tree.c (anon_aggrname_p, anon_aggrname_format): Delete.
        (anon_cnt, make_anon_name): New.

2019-05-28  Martin Liska  <mliska@suse.cz>

        PR other/90315
        * opts-global.c (decode_options): Print help for all
        help_option_arguments.
        * opts.c (print_help): Add new argument.
        (common_handle_option): Remember all values into
        help_option_arguments.
        * opts.h (print_help): Add new argument.

2019-05-28  Martin Liska  <mliska@suse.cz>

        PR ipa/90555
        * ipa-icf-gimple.c (func_checker::compare_loops): New function.
        * ipa-icf-gimple.h (func_checker::compare_loops): Likewise.
        (func_checker::compare_bb): Call compare_loops.

2019-05-27  Jakub Jelinek  <jakub@redhat.com>

        * gimplify.c (gimplify_scan_omp_clauses): Allow lastprivate conditional
        on sections construct.
        * omp-low.c (lower_lastprivate_conditional_clauses): Handle sections
        construct.
        (lower_omp_sections): Handle lastprivate conditional.
        (lower_omp_1) <case GIMPLE_ASSIGN>: Handle sections construct with
        lastprivate_conditional_map.
        * omp-expand.c (expand_omp_sections): Handle lastprivate conditional.

        * omp-low.c (lower_omp_1) <case GIMPLE_ASSIGN>: Look through ordered,
        critical, taskgroup and section regions when looking for a region
        with non-NULL lastprivate_conditional_map.

2019-05-27  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_gen_add3): Remove indirect function.
        (*ix86_gen_sub3): Ditto.
        (*ix86_gen_sub3_carry): Ditto.
        (*ix86_gen_one_cmpl2): Ditto.
        (*ix86_gen_andsp): Ditto.
        (ix86_init_large_pic_reg): Use gen_add2_insn instead of ix86_gen_add3.
        (gen_and2_insn): New static function.
        (ix86_expand_prologue): Use gen_and2_insn instead of ix86_gen_andsp.
        Use gen_add3_insn instead of ix86_gen_add3.
        (ix86_expand_split_stack_prologue): Use gen_add2_insn
        instead of ix86_gen_add3.
        (legitimize_tls_address): Use gen_add2_insn instead of ix86_gen_add3.
        Use gen_sub3_insn instead of ix86_gen_sub3.
        * config/i386-expand.c (ix86_split_long_move): Use gen_add2_insn
        instead of ix86_gen_add3.
        (ix86_expand_strlensi_unroll_1): Use gen_add2_insn instead of
        ix86_gen_add3.  Use gen_sub3_insn instead of ix86_gen_sub3.
        (construct_plt_address): Use gen_add2_insn instead of ix86_gen_add3.
        * config/i386/i386-options.c (ix86_option_override_internal):
        Do not initialize ix86_gen_add3, ix86_gen_sub3, ix86_gen_sub3_carry,
        ix86_gen_one_cmpl2 and ix86_gen_andsp.

2019-05-27  Eric Botcazou  <ebotcazou@adacore.com>

        * dwarf2out.c (resolve_args_picking_1): Deal with DW_OP_GNU_addr_index
        and DW_OP_GNU_const_index opcodes.

2019-05-27  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (STACK_SIZE_MODE): Define.

2019-05-27  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90637
        * tree-ssa-sink.c (statement_sink_location): Honor the
        computed sink location for single-uses.

2019-05-27  Richard Biener  <rguenther@suse.de>

        PR middle-end/90610
        * match.pd (vec_perm): Avoid clobbering op0 when not generating
        a bit-insert.

2019-05-26  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (@sub<mode>3_carry): Rename
        from sub<mode>3_carry.
        (@leave_<mode>): New expander.
        (*leave): Rename from leave.
        (*leave_rex64): Rename from leave_rex64.
        (@monitorx_<mode>): Rename from monitorx_<mode>.
        (@clzero_<mode>): Rename from clzero_<mode>.
        * config/i386/sse.md (@sse3_monitor_<mode>): Rename
        from sse3_monitor_<mode>.
        * config/i386/i386.c (ix86_gen_sub3_carry): Remove indirect function.
        (*ix86_gen_leave): Ditto.
        (*ix86_gen_monitor): Ditto.
        (*ix86_gen_monitorx): Ditto.
        (*ix86_gen_clzero): Ditto.
        (ix86_emit_leave): Use gen_leave instead of ix86_gen_leave.
        * config/i386/i386-expand.c (ix86_expand_strlensi_unroll_1):
        Use gen_sub3_carry instead of ix86_gen_sub3_carry.
        (ix86_expand_builtin) <case IX86_BUILTIN_MONITOR>:
        Use gen_sse3_monitor instead of ix86_gen_monitor.
        <case IX86_BUILTIN_MONITORX>: Use gen_monitorx
        instead of ix86_gen_monitorx.
        <case IX86_BUILTIN_CLZERO>: Use gen_clzero
        instead of ix86_gen_clzero.
        * config/i386/i386-options.c (ix86_option_override_internal):
        Do not initialize ix86_gen_leave, ix86_gen_sub3_carry,
        ix86_gen_monitor, ix86_gen_monitorx and ix86_gen_clzero.

2019-05-26  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (@tls_global_dynamic_64_<mode>):
        Rename from tls_global_dynamic_64_<mode>.
        (@tls_local_dynamic_base_64_<mode>): Rename from
        tls_local_dynamic_base_64_<mode>.
        * config/i386/i386.c (*ix86_gen_tls_global_dynamic_64):
        Remove indirect function.
        (*ix86_gen_tls_local_dynamic_base_64): Ditto.
        (legitimize_tls_address): Use gen_tls_global_dynamic_64 function
        instead of ix86_gen_tls_global_dynamic_64.
        Use gen_tls_local_dynamic_base_64 instead of
        ix86_gen_tls_local_dynamic_base_64.
        * config/i386/i386-options.c (ix86_option_override_internal):
        Do not initialize ix86_gen_tls_global_dynamic_64 and
        ix86_gen_tls_local_dynamic_base_64.

2019-05-26  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (@pro_epilogue_adjust_stack_add_<mode>)
        Rename from pro_epilogue_adjust_stack_<mode>_add.
        (@pro_epilogue_adjust_stack_sub_<mode>)
        Rename from pro_epilogue_adjust_stack_<mode>_sub.
        (@allocate_stack_worker_probe_<mode>):
        Rename from allocate_stack_worker_probe_<mode>.
        (allocate_stack): Use gen_allocate_stack_worker_probe.
        (probe_stack): Use gen_probe_stack_1.
        (@probe_stack_1_<mode>): Rename from probe_stack_<mode>.
        (@adjust_stack_and_probe_<mode>): Rename from
        adjust_stack_and_probe<mode>.
        (@probe_stack_range_<mode>): Rename from probe_stack_range<mode>.
        (stack_protect_set): Use gen_stack_protect_set_1.
        (@stack_protect_set_1_<mode>): Rename from stack_protect_set_<mode>.
        (stack_protect_test): Use gen_stack_protect_test_1.
        (@stack_protect_test_1_<mode>): Rename from stack_protect_test_<mode>.
        * config/i386/i386.c (*ix86_gen_allocate_stack_worker):
        Remove indirect function.
        (*ix86_gen_adjust_stack_and_probe): Ditto.
        (*ix86_gen_probe_stack_range): Ditto.
        (pro_epilogue_adjust_stack): Use gen_pro_epilogue_adjust_stack_add
        instead of gen_pro_epilogue_adjust_stack_{si,di}_add.
        (ix86_adjust_stack_and_probe_stack_clash): Use
        gen_adjust_stack_and_probe instead of ix86_gen_adjust_stack_and_probe.
        (ix86_adjust_stack_and_probe): Ditto.
        (ix86_emit_probe_stack_range): Use gen_probe_stack_range instead
        of ix86_gen_probe_stack_range.
        (ix86_expand_prologue): Use gen_pro_epilogue_adjust_stack_sub
        instead of gen_pro_epilogue_adjust_stack_{si,di}_sub.
        * config/i386/x86-tune-sched.c (ix86_macro_fusion_pair_p):
        Include insn-opinit.h.  Use code_for_stack_protect_test_1 instead of
        CODE_FOR_stack_protect_test_{si,di}.
        * config/i386/i386-options.c (ix86_option_override_internal):
        Do not initialize ix86_gen_allocate_stack_worker,
        ix86_gen_adjust_stack_and_probe and ix86_gen_probe_stack_range.

2019-05-26  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/invoke.texi (Link Options): Many editorial changes around
        -flinker-output.

2019-05-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * doc/invoke.texi (x86 Options, -mvect8-ret-in-mem): Remove
        pre-Solaris 11 referene and most Studio compiler details.

2019-05-24  John David Anglin  <danglin@gcc.gnu.org>

        PR target/90530
        * config/pa/pa.c (pa_can_change_mode_class): Accept mode changes from
        DImode to SImode in floating-point registers on 64-bit target.
        * config/pa/pa.md (umulsidi3): Change nonimmediate_operand to
        register_operand in xmpyu patterns.

2019-05-24  Jakub Jelinek  <jakub@redhat.com>

        * tree-core.h (enum omp_clause_code): Add OMP_CLAUSE__CONDTEMP_.
        * tree.h (OMP_CLAUSE_DECL): Use OMP_CLAUSE__CONDTEMP_ instead of
        OMP_CLAUSE__REDUCTEMP_.
        * tree.c (omp_clause_num_ops, omp_clause_code_name): Add
        OMP_CLAUSE__CONDTEMP_.
        (walk_tree_1): Handle OMP_CLAUSE__CONDTEMP_.
        * tree-pretty-print.c (dump_omp_clause): Likewise.
        * tree-nested.c (convert_nonlocal_omp_clauses,
        convert_local_omp_clauses): Likewise.
        * gimplify.c (enum gimplify_omp_var_data): Use hexadecimal constants
        instead of decimal.  Add GOVD_LASTPRIVATE_CONDITIONAL.
        (gimplify_scan_omp_clauses): Don't reject lastprivate conditional
        on OMP_FOR.
        (gimplify_omp_for): Warn and disable conditional modifier from
        lastprivate on loop iterators.
        * omp-general.h (struct omp_for_data): Add lastprivate_conditional
        member.
        * omp-general.c (omp_extract_for_data): Initialize it.
        * omp-low.c (struct omp_context): Add lastprivate_conditional_map
        member.
        (delete_omp_context): Delete it.
        (lower_lastprivate_conditional_clauses): New function.
        (lower_lastprivate_clauses): Add BODY_P and CSTMT_LIST arguments,
        handle lastprivate conditional clauses.
        (lower_reduction_clauses): Add CLIST argument, emit it into
        the critical section if any.
        (lower_omp_sections): Adjust lower_lastprivate_clauses and
        lower_reduction_clauses callers.
        (lower_omp_for_lastprivate): Add CLIST argument, pass it through
        to lower_lastprivate_clauses.
        (lower_omp_for): Call lower_lastprivate_conditional_clauses, adjust
        lower_omp_for_lastprivate and lower_reduction_clauses callers, emit
        clist into a critical section if not emitted there already by
        lower_reduction_clauses.
        (lower_omp_taskreg, lower_omp_teams): Adjust lower_reduction_clauses
        callers.
        (lower_omp_1): Handle GIMPLE_ASSIGNs storing into lastprivate
        conditional variables.
        * omp-expand.c (determine_parallel_type): Punt if OMP_CLAUSE__CONDTEMP_
        clause is present.
        (expand_omp_for_generic, expand_omp_for_static_nochunk,
        expand_omp_for_static_chunk): Handle lastprivate conditional.
        (expand_omp_for): Handle fd.lastprivate_conditional like
        fd.have_reductemp.

2019-05-24  Andrew Stubbs  <ams@codesourcery.com>

        * config/gcn/gcn-run.c (main): Set a non-zero return value if the
        kernel does not exit cleanly.
        * config/gcn/gcn.md (gcn_return): Insert s_waitcnt before s_dcache_wb.

2019-05-24  Jason Merrill  <jason@redhat.com>

        Revert:
        * gimplify.c (gimplify_cond_expr): Don't check TREE_ADDRESSABLE.

2019-05-24  Richard Biener  <rguenther@suse.de>

        PR testsuite/90607
        * tree-loop-distribution.c (struct partition): Add location
        member.
        (partition_alloc): Initialize all fields.
        (generate_memset_builtin): Use the location recorded in the
        partition for the generated call.
        (generate_memcpy_builtin): Likewise.
        (classify_partition): Record the location of a single store
        as location for the partition.

2019-05-24  Andrew Stubbs  <ams@codesourcery.com>

        * config/gcn/gcn.c (gcn_expand_prologue): Use gen_addsi3_scalar_carry
        for lo-part.

2019-05-24  Matthew Malcomson  <matthew.malcomson@arm.com>

        PR target/90588
        * common/config/aarch64/aarch64-common.c
        (aarch64_rewrite_selected_cpu): Change local temporary variable
        type from unsigned long to uint64_t.
        * config/aarch64/aarch64-protos.h (aarch64_parse_extension,
        aarch64_get_extension_string_for_isa_flags): Change declaration to
        match new definition by replacing unsigned long with uint64_t.

2019-05-24  Jakub Jelinek  <jakub@redhat.com>

        PR target/90568
        * config/i386/x86-tune-sched.c (ix86_macro_funsion_pair_p): Call
        gen_attr_type just once instead of 4-7 times.  Formatting fixes.
        Handle stack_protect_test_<mode> codegen similarly to corresponding
        sub instruction.

2019-05-23  Iain Sandoe  <iain@sandoe.co.uk>

        * config/i386/darwin.h: Reject -mfentry*.
        * doc/sourcebuild.texi: Document mfentry target support.

2019-05-23  Bill Schmidt  <wschmidt@linux.ibm.com>

        * config/rs6000/rs6000.c (rs6000_global_entry_point_needed_p):
        Rename to rs6000_global_entry_point_prologue_needed_p.  Return
        false for PC-relative functions.
        (rs6000_output_function_prologue): Change called function name to
        rs6000_global_entry_point_prologue_needed_p.  Emit ".localentry
        name,1" for PC-relative functions.
        (rs6000_elf_declare_function_name): Change called function name to
        rs6000_global_entry_point_prologue_needed_p.

2019-05-23  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/90552
        * config/i386/i386.c (gen_rtx_cost):
        Use ix86_tune_cost instead of ix86_cost.

2019-05-23  Bill Schmidt  <wschmidt@linux.ibm.com>
            Michael Meissner  <meissner@linux.ibm.com>
            Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000-cpus.def (ISA_FUTURE_MASKS_SERVER): Add
        OPTION_MASK_PCREL.
        (POWERPC_MASKS): Add OPTION_MASK_PCREL.
        * config/rs6000/rs6000-protos.h (rs6000_pcrel_p): New prototype.
        (rs6000_fndecl_pcrel_p): Likewise.
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Report
        error if -mpcrel is requested without -mcpu=future.
        (rs6000_opt_masks): Add entry for pcrel.
        (rs6000_fndecl_pcrel_p): New function.
        (rs6000_pcrel_p): Likewise.
        * config/rs6000/rs6000.opt (mpcrel): New option.
        * doc/invoke.texi: Document -mpcrel and -mno-pcrel.

2019-05-23  Jan Hubicka  <jh@suse.cz>
            Martin Liska  <mliska@suse.cz>

        PR tree-optimization/90576
        * tree-ssa-alias.c (compare_sizes): Remove dead calls to
        poly_int_tree_p.
        (aliasing_component_refs_p): Fix three way size compare conditional;
        give up earlier in case we can not decide on equivalence.

2019-05-23  Bill Schmidt  <wschmidt@linux.ibm.com>
            Michael Meissner  <meissner@linux.ibm.com>
            Segher Boessenkool  <segher@kernel.crashing.org>

        * config.gcc: Add future cpu.
        * config/rs6000/driver-rs6000.c (asm_names): Add future cpu.
        * config/rs6000/rs6000-cpus.def (ISA_FUTURE_MASKS_SERVER): New
        #define.
        (POWERPC_MASKS): Add OPTION_MASK_FUTURE.
        (RS6000_CPU): New instantiation for future cpu.
        * config/rs6000/rs6000-opts.h (enum processor_type): Add
        PROCESSOR_FUTURE.
        * config/rs6000/rs6000-string.c (expand_compare_loop): Treat
        PROCESSOR_FUTURE like PROCESSOR_POWER9 for now.
        * config/rs6000/rs6000-tables.opt: Regenerate.
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Treat
        PROCESSOR_FUTURE similarly to PROCESSOR_POWER9 for now.
        (rs6000_machine_from_flags): Handle future cpu.
        (rs6000_reassociation_width): Treat PROCESSOR_FUTURE like
        PROCESSOR_POWER9 for now.
        (rs6000_adjust_cost): Likewise.
        (rs6000_issue_rate): Likewise.
        (rs6000_register_move_cost): Likewise.
        (rs6000_opt_masks): Add entry for future.
        * config/rs6000/rs6000.h (ASM_CPU_SPEC): Add future cpu.
        (MASK_FUTURE): New #define.
        * config/rs6000/rs6000.md (define_attr "cpu"): Add future cpu.
        * config/rs6000/rs6000.opt (mfuture): New target option.
        * doc/invoke.texi (mcpu): Add future cpu.

2019-05-23  Martin Liska  <mliska@suse.cz>

        PR c++/90587
        * tree-ssa-uninit.c (value_sat_pred_p): The result of &
        operation points to a temporary (pointed via tree_to_wide_ref)
        that is out of scope after the &.

2019-05-23  Jonathan Wakely  <jwakely@redhat.com>

        PR c++/90592
        * doc/extend.texi (Function Names): Add missing word.

2019-05-23  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/88440
        * opts.c (default_options_table): Enable -ftree-loop-distribute-patterns
        at -O[2s]+.
        * tree-loop-distribution.c (generate_memset_builtin): Fold the
        generated call.
        (generate_memcpy_builtin): Likewise.
        (distribute_loop): Pass in whether to only distribute patterns.
        (prepare_perfect_loop_nest): Also allow size optimization.
        (pass_loop_distribution::execute): When optimizing a loop
        nest for size allow pattern replacement.

2019-05-23  Jakub Jelinek  <jakub@redhat.com>

        PR target/90568
        * config/i386/i386.md (stack_protect_test_<mode>): Use sub instead
        of xor.

2019-05-23  Martin Liska  <mliska@suse.cz>

        PR sanitizer/90570
        * gimplify.c (gimplify_target_expr): Skip TREE_STATIC target
        expression similarly to gimplify_decl_expr.

2019-05-23  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        * cse.c (cse_dump_path): s/dump_file/f.

2019-05-22  David Malcolm  <dmalcolm@redhat.com>

        PR c++/90462
        * diagnostic-format-json.cc: Include "selftest.h".
        (json_from_expanded_location): Only add "file" key for non-NULL
        file strings.
        (json_from_location_range): Don't add "start" and "finish"
        children if they are UNKNOWN_LOCATION.
        (selftest::test_unknown_location): New selftest.
        (selftest::test_bad_endpoints): New selftest.
        (selftest::diagnostic_format_json_cc_tests): New function.
        * json.cc (json::object::get): New function.
        (selftest::test_object_get): New selftest.
        (selftest::json_cc_tests): Call it.
        * json.h (json::object::get): New decl.
        * selftest-run-tests.c (selftest::run_tests): Call
        selftest::diagnostic_format_json_cc_tests.
        * selftest.h (selftest::diagnostic_format_json_cc_tests): New
        decl.

2019-05-22  Kwok Cheung Yeung  <kcy@codesourcery.com>
            Andrew Stubbs  <amd@codesourcery.com>

        * config.gcc (gcc_cv_initfini_array): Set for AMD GCN.
        * config/gcn/gcn-run.c (init_array_kernel, fini_array_kernel): New.
        (kernel): Rename to...
        (main_kernel): ... this.
        (load_image): Load _init_array and _fini_array kernels.
        (run): Add argument for kernel to run.
        (main): Run init_array_kernel before main_kernel, and
        fini_array_kernel after.
        * config/gcn/gcn.c (gcn_handle_amdgpu_hsa_kernel_attribute): Allow
        amdgpu_hsa_kernel attribute on functions.
        (gcn_disable_constructors): Delete.
        (TARGET_ASM_CONSTRUCTOR, TARGET_ASM_DESTRUCTOR): Delete.
        * config/gcn/crt0.c (size_t): Define.
        (_init_array, _fini_array): New.
        (__preinit_array_start, __preinit_array_end,
        __init_array_start, __init_array_end,
        __fini_array_start, __fini_array_end): Declare weak references.

2019-05-22  Andrew Stubbs  <ams@codesourcery.com>

        * config/gcn/gcn.c (gcn_trampoline_init): Call "sorry" on GCN5.

2019-05-22  Jason Merrill  <jason@redhat.com>

        * gimplify.c (gimplify_cond_expr): Don't check TREE_ADDRESSABLE.

2019-05-22  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/88483
        * config/i386/i386-options.c (ix86_init_machine_status): Set
        stack_frame_required to true.
        * config/i386/i386.c (ix86_get_frame_size): New function.
        (ix86_frame_pointer_required): Replace get_frame_size with
        ix86_get_frame_size.
        (ix86_compute_frame_layout): Likewise.
        (ix86_find_max_used_stack_alignment): Changed to void.  Set
        stack_frame_required.
        (ix86_finalize_stack_frame_flags): Always call
        ix86_find_max_used_stack_alignment.  Replace get_frame_size with
        ix86_get_frame_size.
        * config/i386/i386.h (machine_function): Add stack_frame_required.

2019-05-22  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (sse_cvtpi2ps): Use TARGET_MMX in insn condition.

2019-05-22  Matthew Malcomson  <matthew.malcomson@arm.com>

        * common/config/aarch64/aarch64-common.c
        (struct aarch64_option_extension, struct processor_name_to_arch,
        struct arch_to_arch_name, aarch64_parse_extension, opt_ext_cmp,
        aarch64_contains_opt,
        aarch64_get_extension_string_for_isa_flags): Change type of
        variables storing flags to uint64_t.
        * config/aarch64/aarch64-option-extensions.def (sve2, sve2-sm4,
        sve2-aes, sve2-sha3, bitperm): New optional SVE2 extension flags.
        * config/aarch64/aarch64.c (struct processor,
        aarch64_parse_arch, aarch64_parse_cpu, aarch64_validate_mcpu,
        aarch64_validate_march, aarch64_override_options,
        aarch64_option_print, aarch64_handle_attr_isa_flags,
        aarch64_declare_function_name, aarch64_start_file): Make flag
        variables uint64_t.
        * config/aarch64/aarch64.h (AARCH64_FL_SVE2, AARCH64_FL_SVE2_AES,
        AARCH64_FL_SVE2_SM4, AARCH64_FL_SVE2_SHA3,
        AARCH64_FL_SVE2_BITPERM): New macro feature flags.
        * config/aarch64/aarch64.opt (aarch64_isa_flags): Make uint64_t.
        * config/aarch64/driver-aarch64.c
        (struct aarch64_arch_extension, struct aarch64_core_data,
        struct aarch64_arch_driver_info, host_detect_local_cpu): Make
        flag variables uint64_t.
        * doc/invoke.texi: Add documentation for new arguments.

2019-05-22  Richard Biener  <rguenther@suse.de>

        * alias.c (ao_ref_from_mem): Move stack-slot sharing
        rewrite ...
        * emit-rtl.c (set_mem_attributes_minus_bitpos): ... here.

2019-05-22  Martin Liska  <mliska@suse.cz>

        PR lto/90500
        * doc/extend.texi: Document the change.

2019-05-22  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90450
        * tree-ssa-loop-im.c (struct im_mem_ref): Add ref_decomposed.
        (mem_ref_hasher::equal): Check it.
        (mem_ref_alloc): Initialize it.
        (gather_mem_refs_stmt): Set it.

2019-05-22  Richard Biener  <rguenther@suse.de>

        * gimple-fold.c (arith_code_with_undefined_signed_overflow):
        Add ABS_EXPR.
        (rewrite_to_defined_overflow): Handle rewriting ABS_EXPR
        as ABSU_EXPR.

2019-05-22  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.h (ASM_OPT_ANY): Define.
        (ASM_CPU_SPEC): Conditionally add -many.
        * config/rs6000/rs6000.c (rs6000_machine): New static var.
        (rs6000_machine_from_flags, emit_asm_machine): New functions..
        (rs6000_file_start): ..extracted from here, and modified to
        test all ISA bits.
        (rs6000_output_function_prologue): Emit .machine as necessary.

2019-05-22  Hans-Peter Nilsson  <hp@axis.com>

        PR middle-end/90553
        * ira-lives.c (process_bb_node_lives): Consider defs
        for a call insn to be die before the call, not after.

        * function.c (assign_parm_setup_block): Raise alignment of
        stacked parameter only for STRICT_ALIGNMENT targets.

2019-05-21  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/constraints.md (define_register_constraint "wz"):
        Delete.
        * config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
        RS6000_CONSTRAINT_wz.
        * config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
        (rs6000_init_hard_regno_mode_ok): Adjust.
        * config/rs6000/rs6000.md: Replace "wz" constraint by "d" with "p7".
        * doc/md.texi (Machine Constraints): Adjust.

2019-05-21  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/constraints.md (define_register_constraint "wl"):
        Delete.
        * config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
        RS6000_CONSTRAINT_wl.
        * config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
        (rs6000_init_hard_regno_mode_ok): Adjust.
        * config/rs6000/rs6000.md: Replace "wl" constraint by "d" with "p6".
        * doc/md.texi (Machine Constraints): Adjust.

2019-05-21  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/constraints.md (define_register_constraint "wm"):
        Delete.
        * config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
        RS6000_CONSTRAINT_wm.
        * config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
        (rs6000_init_hard_regno_mode_ok): Adjust.
        * config/rs6000/vsx.md: Replace "wm" constraint by "wa" with "p8v".
        * doc/md.texi (Machine Constraints): Adjust.

2019-05-21  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/constraints.md (define_register_constraint "wk"):
        Delete.
        * config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
        RS6000_CONSTRAINT_wk.
        * config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
        (rs6000_init_hard_regno_mode_ok): Adjust.
        * config/rs6000/rs6000.md: Replace "wk" constraint by "ws" with "p8v".
        * doc/md.texi (Machine Constraints): Adjust.

2019-05-21  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/constraints.md (define_register_constraint "wj"):
        Delete.
        * config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
        RS6000_CONSTRAINT_wj.
        * config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
        (rs6000_init_hard_regno_mode_ok): Adjust.
        * config/rs6000/rs6000.md: Replace "wj" constraint by "wi" with "p8v".
        (VS_64dm): Delete.
        * config/rs6000/vsx.md: Ditto.
        * doc/md.texi (Machine Constraints): Adjust.

2019-05-21  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/constraints.md (define_register_constraint "wh"):
        Delete.
        * config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
        RS6000_CONSTRAINT_wh.
        * config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
        (rs6000_init_hard_regno_mode_ok): Adjust.
        * config/rs6000/rs6000.md: Replace "wh" constraint by "wa" with "p8v".
        * doc/md.texi (Machine Constraints): Adjust.

2019-05-21  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/90547
        * config/i386/i386.md (anddi_1 to andsi_1_zext splitter):
        Avoid calling gen_lowpart with CONST operand.

2019-05-21  Alexandre Oliva  <aoliva@redhat.com>

        * tree-ssa-threadupdate.c (struct ssa_local_info_t): Add
        field template_last_to_copy.
        (ssa_create_duplicates): Set it, and use it.  Attempt to
        preserve more debug stmts.

2019-05-21  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (VF1_AVX2): New mode iterator.
        (signbit<mode>2): New expander

2019-05-21  James Clarke  <jrtc27@jrtc27.com>

        PR bootstrap/87338
        * dwarf2out.c (dwarf2out_inline_entry): Use ASM_OUTPUT_DEBUG_LABEL
        instead of ASM_GENERATE_INTERNAL_LABEL and ASM_OUTPUT_LABEL.

2019-05-21  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/cpuid.h (__cpuid): For 32bit targets, zero
        %ebx and %ecx bafore calling cpuid with leaf 1 or
        non-constant leaf argument.

2019-05-21  Alan Modra  <amodra@gmail.com>

        PR target/90545
        * config/rs6000/rs6000.c (rs6000_register_move_cost): Increase
        power9 direct move cost.

2019-05-21  Richard Biener  <rguenther@suse.de>

        PR middle-end/90510
        * fold-const.c (fold_read_from_vector): New function.
        * fold-const.h (fold_read_from_vector): Declare.
        * match.pd (VEC_PERM_EXPR): Build BIT_INSERT_EXPRs for
        single-element insert permutations.  Canonicalize selector
        further and fix issue with last commit.

2019-05-21  Vladislav Ivanishin  <vlad@ispras.ru>

        * tree-cfg.h (split_critical_edges): Add for_edge_insertion_p
        parameter with default value false to declaration.
        (split_edges_for_insertion): New inline function.  Wrapper for
        split_critical_edges with for_edge_insertion_p = true.
        * tree-cfg.c (split_critical_edges): Don't split non-critical
        edges if for_edge_insertion_p is false.  Fix whitespace.
        * tree-ssa-pre.c (pass_pre::execute): Call
        split_edges_for_insertion instead of split_critical_edges.
        * tree-ssa-tail-merge.c (tail_merge_optimize): Ditto.
        * tree-ssa-sink.c (pass_sink_code::execute): Ditto.
        (pass_data_sink_code): Update function name in the comment.

2019-05-21  Vladislav Ivanishin  <vlad@ispras.ru>

        * tree-ssa-uninit.c (value_sat_pred_p): This new function is a wrapper
        around is_value_included_in that knows how to handle BIT_AND_EXPR.
        (is_pred_expr_subset_of): Use the new function.  Handle more cases where
        code1 == EQ_EXPR and where code1 == BIT_AND_EXPR and thus fix some false
        positives.

2019-05-21  Martin Liska  <mliska@suse.cz>

        * config/rs6000/driver-rs6000.c (elf_platform): Do not use
        an extra newline.
        * config/rs6000/rs6000-c.c (rs6000_pragma_longcal): Wrap pragma in %<%>.
        (altivec_resolve_overloaded_builtin): Likewise for vec_lvsl and
        vec_lvsr.
        * config/rs6000/rs6000.c (rs6000_option_override_internal):
        Quote a C type.
        (rs6000_function_arg): Likewise.
        (rs6000_expand_set_fpscr_drn_builtin): Remove trailing dot.
        (rs6000_expand_ternop_builtin): Use interval syntax.
        (get_element_number): Likewise.
        (altivec_expand_builtin): Likewise.
        (rs6000_get_function_versions_dispatcher): Quote target_clones.

2019-05-20  Jakub Jelinek  <jakub@redhat.com>

        PR c++/59813
        PR target/90418
        * function.h (struct function): Add calls_eh_return member.
        * gimplify.c (gimplify_call_expr): Set cfun->calls_eh_return when
        gimplifying __builtin_eh_return call.
        * tree-inline.c (initialize_cfun): Copy calls_eh_return from src_cfun
        to cfun.
        (expand_call_inline): Or in src_cfun->calls_eh_return into
        dst_cfun->calls_eh_return.
        * tree-tailcall.c (suitable_for_tail_call_opt_p): Return false if
        cfun->calls_eh_return.
        * lto-streamer-in.c (input_struct_function_base): Read calls_eh_return.
        * lto-streamer-out.c (output_struct_function_base): Write
        calls_eh_return.

2019-05-20  Marc Glisse  <marc.glisse@inria.fr>

        PR rtl-optimization/43147
        * config/i386/i386.c (ix86_gimple_fold_builtin): Handle
        IX86_BUILTIN_SHUFPD.

2019-05-20  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-alias.c (refs_may_alias_p_2): Break out from ...
        (refs_may_alias_p_1): ... here; update stats.
        (refs_may_alias_p): Do not update stats here.

2019-05-20  Richard Biener  <rguenther@suse.de>

        * tree-ssa-structalias.c (find_func_aliases): POINTER_DIFF_EXPR
        doesn't produce pointers.
        {TRUNC,CEIL,FLOOR,ROUND,EXACT}_{DIV,MOD}_EXPR points to what
        the first operand points to.

2019-05-20  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-alias.c (compare_sizes): New function.
        (sompare_type_sizes): New function
        (aliasing_component_refs_p): Use it.
        (indirect_ref_may_alias_decl_p): Likewise.

2019-05-20  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/i386/sol2.h (CC1_SPEC): Reject -mx32.

2019-05-20  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/sol2.h (LIBTSAN_EARLY_SPEC): Remove : after %e.
        (LIBLSAN_EARLY_SPEC): Likewise.
        * config/i386/sol2.h (ASAN_REJECT_SPEC): Likewise.

2019-05-20  Martin Liska  <mliska@suse.cz>

        * config/i386/i386.c (ix86_libc_has_fast_function):
        Add ATTRIBUTE_UNUSED for the argument.

2019-05-20  Richard Biener  <rguenther@suse.de>

        * gimple-match-head.c: Include vec-perm-indices.h.
        * generic-match-head.c: Likewise.
        * fold-const.h (fold_vec_perm): Declare when vec-perm-indices.h
        is included.
        * fold-const.c (fold_vec_perm): Export.
        (fold_ternary_loc): Move non-constant folding of VEC_PERM_EXPR...
        (match.pd): ...here.

2019-05-20  Jakub Jelinek  <jakub@redhat.com>

        * cfgloop.h (struct loop): Add simdlen member.
        * cfgloopmanip.c (copy_loop_info): Copy simdlen as well.
        * omp-expand.c (expand_omp_simd): Set it if simdlen clause is present.
        * tree-vect-loop.c (vect_analyze_loop): Pass loop->simdlen != 0
        as new argument to autovectorize_vector_sizes target hook.  If
        loop->simdlen, pick up vector size where the vectorization factor
        is equal to loop->simd, and if there is none, fall back to the first
        successful one.
        (vect_transform_loop): Adjust autovectorize_vector_sizes target hook
        caller.
        * omp-low.c (omp_clause_aligned_alignment): Likewise.
        * omp-general.c (omp_max_vf): Likewise.
        * optabs-query.c (can_vec_mask_load_store_p): Likewise.
        * tree-vect-slp.c (vect_slp_bb): Likewise.
        * target.def (autovectorize_vector_sizes): Add ALL argument and
        document it.
        * doc/tm.texi: Adjust documentation.
        * targhooks.c (default_autovectorize_vector_sizes): Add bool argument.
        * targhooks.h (default_autovectorize_vector_sizes): Likewise.
        * config/aarch64/aarch64.c (aarch64_autovectorize_vector_sizes): Add
        bool argument.
        * config/arc/arc.c (arc_autovectorize_vector_sizes): Likewise.
        * config/arm/arm.c (arm_autovectorize_vector_sizes): Likewise.
        * config/mips/mips.c (mips_autovectorize_vector_sizes): Likewise.
        * config/i386/i386.c (ix86_autovectorize_vector_sizes): Likewise.  If
        true and TARGET_AVX512F or TARGET_AVX, push 3 or 2 sizes even if
        preferred vector size is not 512-bit or 256-bit, just put those
        unpreferred ones last.

2019-05-20  Martin Liska  <mliska@suse.cz>

        * targhooks.c (default_libc_has_fast_function): New function.
        * targhooks.h (default_libc_has_fast_function): Likewise.

2019-05-20  Martin Liska  <mliska@suse.cz>

        PR middle-end/90263
        * builtins.c (expand_builtin_memory_copy_args): When having a
        target with fast mempcpy implementation do now use memcpy.
        * config/i386/i386.c (ix86_libc_has_fast_function): New.
        (TARGET_LIBC_HAS_FAST_FUNCTION): Likewise.
        * doc/tm.texi: Likewise.
        * doc/tm.texi.in: Likewise.
        * target.def:
        * expr.c (emit_block_move_hints): Add 2 new arguments.
        * expr.h (emit_block_move_hints): Bail out when libcall
        to memcpy would be used.

2019-05-20  Martin Liska  <mliska@suse.cz>

        * profile-count.c: Add vertical spacing in order
        to separate functions.
        * profile-count.h: Likewise.

2019-05-20  Martin Liska  <mliska@suse.cz>

        * profile-count.h: Do not use full qualified
        names if possible.
        * profile-count.c (profile_count::to_frequency): Likewise.

2019-05-20  Martin Liska  <mliska@suse.cz>

        * profile-count.h (enum profile_quality): Use capital letters
        for enum value names.  Use the adjusted names.
        * profile-count.c: Use the adjusted names.

2019-05-19  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/constraints.md (define_register_constraint "wH"):
        Delete.
        (define_register_constraint "wI"): Delete.
        * config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
        RS6000_CONSTRAINT_wH and RS6000_CONSTRAINT_wI.
        * config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
        (rs6000_init_hard_regno_mode_ok): Adjust.
        * config/rs6000/rs6000.md: Replace "wH" and "wI" constraints by "v"
        resp. "d", or with "wa" as appropriate, all with "p8v".
        * config/rs6000/vsx.md: Ditto.
        * doc/md.texi (Machine Constraints): Adjust.

2019-05-19  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/constraints.md (define_register_constraint "wy"):
        Delete.
        * config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
        RS6000_CONSTRAINT_wy.
        * config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
        (rs6000_init_hard_regno_mode_ok): Adjust.
        * config/rs6000/rs6000.md: Replace "wy" constraint by "wa" with "p8v".
        Use "<Fisa>" as "isa" in all alternatives that use "<Fv2>".
        (define_mode_attr Fisa): New.
        * config/rs6000/vsx.md: Replace "wy" constraint by "wa" with "p8v".
        * doc/md.texi (Machine Constraints): Adjust.

2019-05-19  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/constraints.md (define_register_constraint "wu"):
        Delete.
        * config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
        RS6000_CONSTRAINT_wu.
        * config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
        (rs6000_init_hard_regno_mode_ok): Adjust.
        * config/rs6000/rs6000.md: Replace "wu" constraint by "v" or "wa",
        both with "p8v".
        (define_mode_attr Fa): Delete.
        * config/rs6000/vsx.md: Ditto.
        * doc/md.texi (Machine Constraints): Adjust.

2019-05-19  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/constraints.md (define_register_constraint "wJ"):
        Delete.
        (define_register_constraint "wK"): Delete.
        * config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
        RS6000_CONSTRAINT_wJ and RS6000_CONSTRAINT_wK.
        * config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
        (rs6000_init_hard_regno_mode_ok): Adjust.
        * config/rs6000/rs6000.md: Replace "wJ" constraint by "wI" with "p9v".
        Replace "wK" constraint by "wH" with "p9v".
        * config/rs6000/vsx.md: Ditto.
        * doc/md.texi (Machine Constraints): Adjust.

2019-05-19  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/constraints.md (define_register_constraint "wb"):
        Delete.
        * config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
        RS6000_CONSTRAINT_wb.
        * config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
        (rs6000_init_hard_regno_mode_ok): Adjust.
        * config/rs6000/rs6000.md: Replace "wb" constraint by "v" with "p9v".
        * config/rs6000/vsx.md: Ditto.
        * doc/md.texi (Machine Constraints): Adjust.

2019-05-19  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/constraints.md (define_register_constraint "wo"):
        Delete.
        * config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
        RS6000_CONSTRAINT_wo.
        * config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
        (rs6000_init_hard_regno_mode_ok): Adjust.
        * config/rs6000/rs6000.md: Replace "wo" constraint by "wa" with "p9v".
        * config/rs6000/altivec.md: Ditto.
        * doc/md.texi (Machine Constraints): Adjust.

2019-05-18  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin-c.c (darwin_register_objc_includes): Do not
        prepend the sysroot when building gnu-runtime header search
        paths.

2019-05-18  Iain Sandoe  <iain@sandoe.co.uk>

        * config/darwin.c (darwin_file_end): Use switch_to_section ()
        instead of direct output of the asm.

2019-05-17  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (restore_saved_cr): Change a boolean
        argument to be type bool (was int before).
        (rs6000_emit_epilogue): Simplify some code.  Declare some variables
        at first use.  Use type bool for some variables.  Fix a theoretical
        eh_return bug for svr4.

2019-05-17  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (isa): New attribute.
        (enabled): New attribute.

2019-05-17  Max Filippov  <jcmvbkbc@gmail.com>

        * config/aarch64/aarch64.c (aarch64_output_mi_thunk): Call
        assemble_start_function and assemble_end_function.

2019-05-17  Thomas Schwinge  <thomas@codesourcery.com>

        PR middle-end/89433
        * omp-general.c (oacc_verify_routine_clauses): Change formal
        parameters.  Add checking if already marked with an OpenACC
        'routine' directive.  Adjust all users.

        PR middle-end/89433
        * omp-general.c (oacc_build_routine_dims): Move some of its
        processing into...
        (oacc_verify_routine_clauses): ... this new function.
        * omp-general.h (oacc_verify_routine_clauses): New prototype.

2019-05-17  Iain Sandoe  <iain@sandoe.co.uk>

        * config/rs6000/rs6000.c (machopic_output_stub): Adjust the
        formating of picbase labels to match other ports.

2019-05-17  Iain Sandoe  <iain@sandoe.co.uk>

        * config/rs6000/rs6000.c (macho_branch_islands): Fix bad indent
        in the generated code.

2019-05-16  Martin Sebor  <msebor@redhat.com>

        * builtins.c (expand_builtin_atomic_always_lock_free): Quote
        identifiers, keywords, operators, and types in diagnostics.  Correct
        quoting, spelling, and sentence capitalization issues.
        (expand_builtin_atomic_is_lock_free): Same.
        (fold_builtin_next_arg): Same.
        * cfgexpand.c (expand_one_var): Same.
        (tree_conflicts_with_clobbers_p): Same.
        (expand_asm_stmt): Same.
        (verify_loop_structure): Same.
        * cgraphunit.c (process_function_and_variable_attributes): Same.
        * collect-utils.c (collect_execute): Same.
        * collect2.c (maybe_run_lto_and_relink): Same.
        (is_lto_object_file): Same.
        (scan_prog_file): Same.
        * convert.c (convert_to_real_1): Same.
        * dwarf2out.c (dwarf2out_begin_prologue): Same.
        * except.c (verify_eh_tree): Same.
        * gcc.c (execute): Same.
        (eval_spec_function): Same.
        (run_attempt): Same.
        (driver::set_up_specs): Same.
        (compare_debug_auxbase_opt_spec_function): Same.
        * gcov-tool.c (unlink_gcda_file): Same.
        (do_merge): Same.
        (do_rewrite): Same.
        * gcse.c (gcse_or_cprop_is_too_expensive): Same.
        * gimplify.c (gimplify_asm_expr): Same.
        (gimplify_adjust_omp_clauses): Same.
        * hsa-gen.c (gen_hsa_addr_insns): Same.
        (gen_hsa_insns_for_load): Same.
        (gen_hsa_cmp_insn_from_gimple): Same.
        (gen_hsa_insns_for_operation_assignment): Same.
        (gen_get_level): Same.
        (gen_hsa_alloca): Same.
        (omp_simple_builtin::generate): Same.
        (gen_hsa_atomic_for_builtin): Same.
        (gen_hsa_insns_for_call): Same.
        * input.c (dump_location_info): Same.
        * ipa-devirt.c (compare_virtual_tables): Same.
        * ira.c (ira_setup_eliminable_regset): Same.
        * lra-assigns.c (lra_assign): Same.
        * lra-constraints.c (lra_constraints): Same.
        * lto-streamer-in.c (lto_input_mode_table): Same.
        * lto-wrapper.c (get_options_from_collect_gcc_options): Same.
        (merge_and_complain): Same.
        (compile_offload_image): Same.
        (compile_images_for_offload_targets): Same.
        (debug_objcopy): Same.
        (run_gcc): Same.
        (main): Same.
        * opts.c (print_specific_help): Same.
        (parse_no_sanitize_attribute): Same.
        (print_help): Same.
        (handle_param): Same.
        * plugin.c (add_new_plugin): Same.
        (parse_plugin_arg_opt): Same.
        (try_init_one_plugin): Same.
        * print-rtl.c (debug_bb_n_slim): Quote identifiers, keywords,
        operators, and types in diagnostics.  Correct quoting and spelling
        issues.
        * read-rtl-function.c (parse_edge_flag_token): Same.
        (function_reader::parse_enum_value): Same.
        * reg-stack.c (check_asm_stack_operands): Same.
        * regcprop.c (validate_value_data): Same.
        * sched-rgn.c (make_pass_sched_fusion): Same.
        * stmt.c (check_unique_operand_names): Same.
        * targhooks.c (default_target_option_pragma_parse): Same.
        * tlink.c (recompile_files): Same.
        * toplev.c (process_options): Same.
        (do_compile): Same.
        * trans-mem.c (diagnose_tm_1): Same.
        (ipa_tm_scan_irr_block): Same.
        (ipa_tm_diagnose_transaction): Same.
        * tree-cfg.c (verify_address): Same.  Use get_tree_code_name to
        format a tree code name in a diagnostic.
        (verify_types_in_gimple_min_lval): Same.
        (verify_types_in_gimple_reference): Same.
        (verify_gimple_call): Same.
        (verify_gimple_assign_unary): Same.
        (verify_gimple_assign_binary): Same.
        (verify_gimple_assign_ternary): Same.
        (verify_gimple_assign_single): Same.
        (verify_gimple_switch): Same.
        (verify_gimple_label): Same.
        (verify_gimple_phi): Same.
        (verify_gimple_in_seq): Same.
        (verify_eh_throw_stmt_node): Same.
        (collect_subblocks): Same.
        (gimple_verify_flow_info): Same.
        (do_warn_unused_result): Same.
        * tree-inline.c (expand_call_inline): Same.
        * tree-into-ssa.c (update_ssa): Same.
        * tree.c (tree_int_cst_elt_check_failed): Same.
        (tree_vec_elt_check_failed): Same.
        (omp_clause_operand_check_failed): Same.
        (verify_type_variant): Same.
        (verify_type): Same.
        * value-prof.c (verify_histograms): Same.
        * varasm.c (assemble_start_function): Same.

2019-05-16  Martin Sebor  <msebor@redhat.com>

        * config/i386/i386-expand.c (get_element_number): Quote keywords
        and other internal names in diagnostics.  Adjust other diagnostic
        formatting issues noted by -Wformat-diag.
        * config/i386/i386-features.c
        (ix86_mangle_function_version_assembler_name): Same.
        * config/i386/i386-options.c (ix86_handle_abi_attribute): Same.
        * config/i386/i386.c (ix86_function_type_abi): Same.
        (ix86_function_ms_hook_prologue): Same.
        (classify_argument): Same.
        (ix86_expand_prologue): Same.
        (ix86_md_asm_adjust): Same.
        (ix86_memmodel_check): Same.

2019-05-17  Dragan Mladjenovic  <dmladjenovic@wavecomp.com>

        * config/mips/mips.c (mips_dwarf_frame_reg_mode): Replace
        TARGET_FLOAT64 with !TARGET_FLOAT32, thus handling both fp64
        and fpxx modes.

2019-05-17  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/90497
        * config/i386/i386-expand.c (ix86_expand_builtin): Enable MMX
        intrinsics without SSE/SSE2/SSSE3.
        * config/i386/mmx.md (mmx_uavgv8qi3): Restore TARGET_3DNOW
        check.
        (*mmx_uavgv8qi3): Likewise.

2019-05-17  Richard Biener  <rguenther@suse.de>

        * gimple-pretty-print.c (dump_ternary_rhs): Handle dumping
        VEC_PERM_EXPR as __VEC_PERM with -gimple.

2019-05-17  Andreas Krebbel  <krebbel@linux.ibm.com>

        * config/s390/s390-builtins.def (s390_vec_sldw_*): Use the
        vec_sldw insn pattern.

2019-05-17  Richard Biener  <rguenther@suse.de>

        * ccmp.c (expand_ccmp_expr_1): Do not use gimple_assign_rhs_to_tree.

2019-05-17  Martin Liska  <mliska@suse.cz>

        PR driver/90496
        * toplev.c (output_stack_usage): With LTO and sanitizer it
        happens that a global ctor (_GLOBAL__sub_I_00099_0_main)
        has no file location.

2019-05-16  Jakub Jelinek  <jakub@redhat.com>

        PR c++/90484
        * tree-ssa-scopedtables.c (equal_mem_array_ref_p): Don't assert that
        sz0 is equal to sz1, instead return false in that case.

        * omp-low.c (lower_rec_input_clauses): If OMP_CLAUSE_IF
        has non-constant expression, force sctx.lane and use two
        argument IFN_GOMP_SIMD_LANE instead of single argument.
        * tree-ssa-dce.c (eliminate_unnecessary_stmts): Don't DCE
        two argument IFN_GOMP_SIMD_LANE without lhs.
        * tree-vectorizer.h (struct _loop_vec_info): Add simd_if_cond
        member.
        (LOOP_VINFO_SIMD_IF_COND, LOOP_REQUIRES_VERSIONING_FOR_SIMD_IF_COND):
        Define.
        (LOOP_REQUIRES_VERSIONING): Or in
        LOOP_REQUIRES_VERSIONING_FOR_SIMD_IF_COND.
        * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Initialize
        simd_if_cond.
        (vect_analyze_loop_2): Punt if LOOP_VINFO_SIMD_IF_COND is constant 0.
        * tree-vect-loop-manip.c (vect_loop_versioning): Add runtime check
        from simd if clause if needed.

2019-05-16  Richard Biener  <rguenther@suse.de>

        * tree-affine.c (expr_to_aff_combination): New function split
        out from...
        (tree_to_aff_combination): ... here.
        (aff_combination_expand): Avoid building a GENERIC tree.

2019-05-16  Max Filippov  <jcmvbkbc@gmail.com>

        * cgraphunit.c (cgraph_node::expand_thunk): Remove
        assemble_start_function and assemble_end_function calls.
        * config/alpha/alpha.c (alpha_output_mi_thunk_osf): Call
        assemble_start_function and assemble_end_function.
        * config/arc/arc.c (arc_output_mi_thunk): Likewise.
        * config/arm/arm.c (arm_output_mi_thunk): Likewise.
        * config/bfin/bfin.c (bfin_output_mi_thunk): Likewise.
        * config/c6x/c6x.c (c6x_output_mi_thunk): Likewise.
        * config/cris/cris.c (cris_asm_output_mi_thunk): Likewise.
        * config/csky/csky.c (csky_output_mi_thunk): Likewise.
        * config/epiphany/epiphany.c (epiphany_output_mi_thunk): Likewise.
        * config/frv/frv.c (frv_asm_output_mi_thunk): Likewise.
        * config/i386/i386.c (x86_output_mi_thunk): Likewise.
        * config/ia64/ia64.c (ia64_output_mi_thunk): Likewise.
        * config/m68k/m68k.c (m68k_output_mi_thunk): Likewise.
        * config/microblaze/microblaze.c (microblaze_asm_output_mi_thunk):
        Likewise.
        * config/mips/mips.c (mips_output_mi_thunk): Likewise.
        * config/mmix/mmix.c (mmix_asm_output_mi_thunk): Likewise.
        * config/mn10300/mn10300.c (mn10300_asm_output_mi_thunk): Likewise.
        * config/nds32/nds32.c (nds32_asm_output_mi_thunk): Likewise.
        * config/nios2/nios2.c (nios2_asm_output_mi_thunk): Likewise.
        * config/or1k/or1k.c (or1k_output_mi_thunk): Likewise.
        * config/pa/pa.c (pa_asm_output_mi_thunk): Likewise.
        * config/riscv/riscv.c (riscv_output_mi_thunk): Likewise.
        * config/rs6000/rs6000.c (rs6000_output_mi_thunk): Likewise.
        * config/s390/s390.c (s390_output_mi_thunk): Likewise.
        * config/sh/sh.c (sh_output_mi_thunk): Likewise.
        * config/sparc/sparc.c (sparc_output_mi_thunk): Likewise.
        * config/spu/spu.c (spu_output_mi_thunk): Likewise.
        * config/stormy16/stormy16.c (xstormy16_asm_output_mi_thunk):
        Likewise.
        * config/tilegx/tilegx.c (tilegx_output_mi_thunk): Likewise.
        * config/tilepro/tilepro.c (tilepro_asm_output_mi_thunk): Likewise.
        * config/vax/vax.c (vax_output_mi_thunk): Likewise.

2019-05-16  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-alias.c (alias_stats): Add
        aliasing_component_refs_p_may_alias and
        aliasing_component_refs_p_no_alias.
        (dump_alias_stats): Print aliasing_component_refs_p stats.
        (aliasing_component_refs_p): Update stats.

2019-05-16  Martin Liska  <mliska@suse.cz>

        PR lto/90500
        * multiple_target.c (expand_target_clones): Do not allow
        target_clones being used with a symbol that is an alias.

2019-05-16  Vladislav Ivanishin  <vlad@ispras.ru>

        PR tree-optimization/90394
        * tree-ssa-uninit.c (is_pred_expr_subset_of): Potentially give false
        positives rather than ICE for cases where (code2 == NE_EXPR
        && code1 == BIT_AND_EXPR).

2019-05-16  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/90329
        * tree-core.h (struct tree_decl_common): Document
        decl_nonshareable_flag for PARM_DECLs.
        * tree.h (DECL_HIDDEN_STRING_LENGTH): Define.
        * calls.c (expand_call): Don't try tail call if caller
        has any DECL_HIDDEN_STRING_LENGTH PARM_DECLs that are or might be
        passed on the stack and callee needs to pass any arguments on the
        stack.
        * tree-streamer-in.c (unpack_ts_decl_common_value_fields): Use
        else if instead of series of mutually exclusive ifs.  Handle
        DECL_HIDDEN_STRING_LENGTH for PARM_DECLs.
        * tree-streamer-out.c (pack_ts_decl_common_value_fields): Likewise.

        * lto-streamer.h (LTO_major_version): Bump to 9.

2019-05-16  Jun Ma  <JunMa@linux.alibaba.com>

        PR tree-optimization/90106
        * tree-call-cdce.c (shrink_wrap_one_built_in_call_with_conds): Add
        new parameter as new internal function call, also move it to new
        basic block.
        (use_internal_fn): Pass internal function call to
        shrink_wrap_one_built_in_call_with_conds.

2019-05-15  Jakub Jelinek  <jakub@redhat.com>

        * omp-low.c (lower_rec_input_clauses): For if (0) or simdlen (1) set
        max_vf to 1.
        * omp-expand.c (expand_omp_simd): For if (0) or simdlen (1) clear
        safelen_int and set loop->dont_vectorize.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/i386-builtin.def: Enable MMX intrinsics with
        SSE/SSE2/SSSE3.
        * config/i386/i386-builtins.c (ix86_init_mmx_sse_builtins):
        Likewise.
        * config/i386/i386-expand.c (ix86_expand_builtin): Allow
        SSE/SSE2/SSSE3 to emulate MMX intrinsics with TARGET_MMX_WITH_SSE.
        * config/i386/mmintrin.h: Only require SSE2 if __MMX_WITH_SSE__
        is defined.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/mmx.md (*vec_dupv2sf): Changed to
        define_insn_and_split to support SSE emulation.
        (*vec_extractv2sf_0): Likewise.
        (*vec_extractv2sf_1): Likewise.
        (*vec_extractv2si_0): Likewise.
        (*vec_extractv2si_1): Likewise.
        (*vec_extractv2si_zext_mem): Likewise.
        (vec_setv2sf): Also allow TARGET_MMX_WITH_SSE.
        (vec_extractv2sf_1 splitter): Likewise.
        (vec_extractv2sfsf): Likewise.
        (vec_setv2si): Likewise.
        (vec_extractv2si_1 splitter): Likewise.
        (vec_extractv2sisi): Likewise.
        (vec_setv4hi): Likewise.
        (vec_extractv4hihi): Likewise.
        (vec_setv8qi): Likewise.
        (vec_extractv8qiqi): Likewise.
        (vec_extractv2sfsf): Also allow TARGET_MMX_WITH_SSE.  Pass
        TARGET_MMX_WITH_SSE ix86_expand_vector_extract.
        (vec_extractv2sisi): Likewise.
        (vec_extractv4hihi): Likewise.
        (vec_extractv8qiqi): Likewise.
        (vec_initv2sfsf): Also allow TARGET_MMX_WITH_SSE.  Pass
        TARGET_MMX_WITH_SSE to ix86_expand_vector_init.
        (vec_initv2sisi): Likewise.
        (vec_initv4hihi): Likewise.
        (vec_initv8qiqi): Likewise.
        (vec_setv2si): Also allow TARGET_MMX_WITH_SSE.  Pass
        TARGET_MMX_WITH_SSE to ix86_expand_vector_set.
        (vec_setv4hi): Likewise.
        (vec_setv8qi): Likewise.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/mmx.md (MMXMODE:mov<mode>): Also allow
        TARGET_MMX_WITH_SSE.
        (MMXMODE:*mov<mode>_internal): Likewise.
        (MMXMODE:movmisalign<mode>): Likewise.

2019-05-15  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/89021
        * config/i386/i386.md (*zero_extendsidi2): Add mmx_isa attribute.
        * config/i386/sse.md (sse2_cvtpi2pd): Ditto.
        (sse2_cvtpd2pi): Ditto.
        (sse2_cvttpd2pi): Ditto.
        (*vec_concatv2sf_sse4_1): Ditto.
        (*vec_concatv2sf_sse): Ditto.
        (*vec_concatv2si_sse4_1): Ditto.
        (*vec_concatv2si): Ditto.
        (*vec_concatv4si_0): Ditto.
        (*vec_concatv2di_0): Ditto.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/sse.md (abs<mode>2): Add SSE emulation.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/sse.md (ssse3_palignrdi): Changed to
        define_insn_and_split to support SSE emulation.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/sse.md (ssse3_psign<mode>3): Add SSE emulation.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/sse.md (ssse3_pshufbv8qi3): Changed to
        define_insn_and_split.  Also allow TARGET_MMX_WITH_SSE.  Add
        SSE emulation.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/sse.md (ssse3_pmulhrswv4hi3): Require TARGET_MMX
        or TARGET_MMX_WITH_SSE.
        (*ssse3_pmulhrswv4hi3): Add SSE emulation.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/sse.md (ssse3_pmaddubsw): Add SSE emulation.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/sse.md (ssse3_ph<plusminus_mnemonic>dv2si3):
        Changed to define_insn_and_split to support SSE emulation.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/sse.md (ssse3_ph<plusminus_mnemonic>wv4hi3):
        Changed to define_insn_and_split to support SSE emulation.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/mmx.md (mmx_<emms>): Renamed to ...
        (*mmx_<emms>): This.
        (mmx_<emms>): New expander.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/mmx.md (sse2_umulv1siv1di3): Add SSE emulation
        support.
        (*sse2_umulv1siv1di3): Add SSE2 emulation.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/mmx.md (sse_movntq): Add SSE2 emulation.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/mmx.md (mmx_psadbw): Add SSE emulation.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/mmx.md (mmx_uavgv4hi3): Also check TARGET_MMX and
        TARGET_MMX_WITH_SSE.
        (*mmx_uavgv4hi3): Add SSE emulation.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/mmx.md (mmx_uavgv8qi3): Also check TARGET_MMX
        and TARGET_MMX_WITH_SSE.
        (*mmx_uavgv8qi3): Add SSE emulation.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/xmmintrin.h: Emulate MMX maskmovq with SSE2
        maskmovdqu for __MMX_WITH_SSE__.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/mmx.md (mmx_umulv4hi3_highpart): Also check
        TARGET_MMX and TARGET_MMX_WITH_SSE.
        (*mmx_umulv4hi3_highpart): Add SSE emulation.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/mmx.md (mmx_pmovmskb): Changed to
        define_insn_and_split to support SSE emulation.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/mmx.md (mmx_<code>v4hi3): Also check TARGET_MMX
        and TARGET_MMX_WITH_SSE.
        (mmx_<code>v8qi3): Likewise.
        (smaxmin:<code>v4hi3): New.
        (umaxmin:<code>v8qi3): Likewise.
        (smaxmin:*mmx_<code>v4hi3): Add SSE emulation.
        (umaxmin:*mmx_<code>v8qi3): Likewise.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/mmx.md (mmx_pinsrw): Also check TARGET_MMX and
        TARGET_MMX_WITH_SSE.
        (*mmx_pinsrw): Add SSE emulation.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/mmx.md (mmx_pextrw): Add SSE emulation.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/sse.md (sse_cvtpi2ps): Changed to
        define_insn_and_split.  Also allow TARGET_MMX_WITH_SSE.  Add
        SSE emulation.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/sse.md (sse_cvtps2pi): Add SSE emulation.
        (sse_cvttps2pi): Likewise.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/mmx.md (mmx_pshufw): Also check TARGET_MMX and
        TARGET_MMX_WITH_SSE.
        (mmx_pshufw_1): Add SSE emulation.
        (*vec_dupv4hi): Changed to define_insn_and_split and also allow
        TARGET_MMX_WITH_SSE to support SSE emulation.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/constraints.md (Yw): New constraint.
        * config/i386/mmx.md (*vec_dupv2si): Changed to
        define_insn_and_split and also allow TARGET_MMX_WITH_SSE to
        support SSE emulation.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/mmx.md (mmx_eq<mode>3): Also allow
        TARGET_MMX_WITH_SSE.
        (*mmx_eq<mode>3): Also allow TARGET_MMX_WITH_SSE.  Add SSE
        support.
        (mmx_gt<mode>3): Likewise.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/mmx.md (mmx_andnot<mode>3): Also allow
        TARGET_MMX_WITH_SSE.  Add SSE support.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/mmx.md (any_logic:mmx_<code><mode>3): Also allow
        TARGET_MMX_WITH_SSE.
        (any_logic:<code><mode>3): New.
        (any_logic:*mmx_<code><mode>3): Also allow TARGET_MMX_WITH_SSE.
        Add SSE support.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/mmx.md (mmx_ashr<mode>3): Also allow
        TARGET_MMX_WITH_SSE.  Add SSE emulation.
        (mmx_<shift_insn><mode>3): Likewise.
        (ashr<mode>3): New.
        (<shift_insn><mode>3): Likewise.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/mmx.md (mmx_pmaddwd): Also allow TARGET_MMX_WITH_SSE.
        (*mmx_pmaddwd): Also allow TARGET_MMX_WITH_SSE.  Add SSE support.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/mmx.md (mmx_smulv4hi3_highpart): Also allow
        TARGET_MMX_WITH_SSE.
        (*mmx_smulv4hi3_highpart): Also allow TARGET_MMX_WITH_SSE. Add
        SSE support.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/mmx.md (mmx_mulv4hi3): Also allow
        TARGET_MMX_WITH_SSE.
        (mulv4hi3): New.
        (*mmx_mulv4hi3): Also allow TARGET_MMX_WITH_SSE.  Add SSE
        support.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/mmx.md (MMXMODEI8): Require TARGET_SSE2 for V1DI.
        (plusminus:mmx_<plusminus_insn><mode>3): Check
        TARGET_MMX_WITH_SSE.
        (sat_plusminus:mmx_<plusminus_insn><mode>3): Likewise.
        (<plusminus_insn><mode>3): New.
        (*mmx_<plusminus_insn><mode>3): Add SSE emulation.
        (*mmx_<plusminus_insn><mode>3): Likewise.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/i386-expand.c (ix86_split_mmx_punpck): New function.
        * config/i386/i386-protos.h (ix86_split_mmx_punpck): New
        prototype.
        * config/i386/mmx.m (mmx_punpckhbw): Changed to
        define_insn_and_split to support SSE emulation.
        (mmx_punpcklbw): Likewise.
        (mmx_punpckhwd): Likewise.
        (mmx_punpcklwd): Likewise.
        (mmx_punpckhdq): Likewise.
        (mmx_punpckldq): Likewise.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>
            Uros Bizjak  <ubizjak@gmail.com>

        PR target/89021
        * config/i386/i386-expand.c (ix86_move_vector_high_sse_to_mmx):
        New function.
        (ix86_split_mmx_pack): Likewise.
        * config/i386/i386-protos.h (ix86_move_vector_high_sse_to_mmx):
        New prototype.
        (ix86_split_mmx_pack): Likewise.
        * config/i386/i386.md (mmx_isa): New.
        (enabled): Also check mmx_isa.
        * config/i386/mmx.md (any_s_truncate): New code iterator.
        (s_trunsuffix): New code attr.
        (mmx_packsswb): Removed.
        (mmx_packssdw): Likewise.
        (mmx_packuswb): Likewise.
        (mmx_pack<s_trunsuffix>swb): New define_insn_and_split to emulate
        MMX packsswb/packuswb with SSE2.
        (mmx_packssdw): Likewise.
        * config/i386/predicates.md (register_mmxmem_operand): New.

2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89021
        * config/i386/i386-c.c (ix86_target_macros_internal): Define
        __MMX_WITH_SSE__ for TARGET_MMX_WITH_SSE.
        * config/i386/i386.c (ix86_set_reg_reg_cost): Add support for
        TARGET_MMX_WITH_SSE with VALID_MMX_REG_MODE.
        (ix86_vector_mode_supported_p): Likewise.
        * config/i386/i386.h (TARGET_MMX_WITH_SSE): New.

2019-05-15  Martin Liska  <mliska@suse.cz>

        PR middle-end/90478
        * tree-switch-conversion.c (jump_table_cluster::can_be_handled):
        Check for overflow.

2019-05-15  Richard Biener  <rguenther@suse.de>

        * tree-into-ssa.c (pass_build_ssa::execute): Run
        update_address_taken before going into SSA.

2019-05-15  Richard Biener  <rguenther@suse.de>

        * tree-pretty-print.c (dump_generic_node): Dump BIT_FIELD_REF
        as __BIT_FIELD_REF with type with -gimple.

2019-05-15  Vladislav Ivanishin  <vlad@ispras.ru>

        * tree-ssa-uninit.c (is_value_included_in): Remove is_unsigned and merge
        semantically equivalent branches (left over after prior refactorings).

2019-05-15  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/88828
        * tree-ssa-forwprop.c (simplify_vector_constructor): Fix
        bogus check.

2019-05-14  Richard Biener  <rguenther@suse.de>

        * tree-pretty-print.c (dump_generic_node): Dump VIEW_CONVERT_EXPR
        as __VIEW_CONVERT with -gimple.

2019-05-12  Iain Sandoe  <iain@sandoe.co.uk>

        PR target/82920
        * config/i386/darwin.h (CC1_SPEC): Report -mx32 as an error for
        Darwin.

2019-05-14  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (eh_set_lr_<mode>): Merge with following
        define_split to become a define_insn_and_split.

2019-05-14  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000-protos.h (rs6000_emit_epilogue): Change
        arguments.
        * config/rs6000/rs6000.c (rs6000_emit_epilogue): Change arguments.
        * config/rs6000/rs6000.md (epilogue_type): New define_enum.
        (sibcall_epilogue): Adjust.
        (epilogue): Adjust.

2019-05-14  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config.gcc: Move *-*-solaris2.10* from obsolete configurations
        to unsupported ones.
        Simplify x86_64-*-solaris2.1[0-9]* to x86_64-*-solaris2*.
        * config.host: Likewise.
        * config/i386/sol2.h (ASM_COMMENT_START): Remove.
        * config/sparc/driver-sparc.c (host_detect_local_cpu) [__sun__ &&
        __svr4__]: Remove "brand" fallback.
        [!KSTAT_DATA_STRING]: Remove.
        * configure.ac (gcc_cv_ld_hidden): Simplify *-*-solaris2.1[0-9]*
        to *-*-solaris2*.
        (comdat_group): Likewise.
        (set_have_as_tls): Likewise.
        (gcc_cv_target_dl_iterate_phdr): Likewise.
        (gcc_cv_as_shf_merge): Remove Solaris 10/x86 workaround.
        (gcc_cv_ld_aligned_shf_merge): Remove Solaris 10/SPARC workaround.
        * configure: Regenerate.
        * doc/install.texi: Simplify Solaris target triplets.
        (Specific, i?86-*-solaris2*): Remove Solaris 10 references.
        (Specific, *-*-solaris2*): Document Solaris 10 removal.
        Remove Solaris 10 references.
        Remove obsolete Solaris bug reference.
        (Specific, sparc-sun-solaris2.10): Remove.

2019-05-14  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (any_div): New code iterator.
        (paired_mod): New code attribute.
        (sgnprefix): Handle DIV and UDIV RTXes.
        (u): Ditto.
        (<u>divmod<mode>4): Macroize expander from divmod<mode>4
        and udivmod<mode>4 patterns using any_div code iterator.
        (divmod splitters): Macroize splitters using any_div code iterator.
        (*udivmodsi4_pow2_zext_1): Use exactl_log2 in insn condition.
        (*udivmodsi4_pow2_zext_2): Ditto.
        (*<u>divmod<mode>4_noext): Macroize insn from *divmod<mode>4_noext
        and *udivmod<mode>4_noext patterns using any_div code iterator.
        (*<u>divmod<mode>4_noext_zext_1): Macroize insn from
        *divmod<mode>4_noext_zext_1 and *udivmod<mode>4_noext_zext_1
        patterns using any_div code iterator.
        (*<u>divmod<mode>4_noext_zext_2): Macroize insn from
        *divmod<mode>4_noext_zext_2 and *udivmod<mode>4_noext_zext_2
        patterns using any_div code iterator.
        (<u>divmodhiqi3): Macroize insn from divmodhiqi3 and
        udivmodhiqi3 patterns using any_extend code iterator.

2019-05-14  Richard Biener  <rguenther@suse.de>
            H.J. Lu  <hongjiu.lu@intel.com>

        PR tree-optimization/88828
        * tree-ssa-forwprop.c (simplify_vector_constructor): Handle
        permuting in a single non-constant element not extracted
        from a vector.

2019-05-14  Przemyslaw Wirkus  <przemyslaw.wirkus@arm.com>

        * internal-fn.def (SIGNBIT): New.
        * config/aarch64/aarch64-simd.md (signbitv2sf2): New expand
        defined.
        (signbitv4sf2): Likewise.

2019-05-14  Chenghua Xu  <paul.hua.gm@gmail.com>

        PR target/90357
        * config/mips/mips.c (mips_split_move): Skip forward SRC into
        next insn when the SRC reg is dead.

2019-05-14  Bin Cheng  <bin.cheng@linux.alibaba.com>

        * gimple-ssa-strength-reduction.c (lookup_cand): Adjust index by 1.
        (alloc_cand_and_find_basis): Ditto.
        (backtrace_base_for_ref, create_mul_ssa_cand): Remove if-then-else.
        (create_mul_imm_cand, create_add_ssa_cand): Ditto.
        (create_add_imm_cand, slsr_process_cast): Ditto.
        (slsr_process_copy, replace_mult_candidate): Ditto.
        (replace_rhs_if_not_dup, replace_one_candidate): Ditto.
        (dump_cand_vec, analyze_candidates_and_replace): Skip NULL element.
        (pass_strength_reduction::execute): Init the first NULL element.

2019-05-13  Nathan Sidwell  <nathan@acm.org>

        * gcc.c (execute): Simplify cond-expr into if.  Reformat comment.
        (run_attempt): Reformat line break.

2019-05-13  David Edelsohn  <dje.gcc@gmail.com>

        PR target/90418
        * config/rs6000/rs6000.c (rs6000_emit_epilogue): Don't load EH
        data registers in sibcall epilogues.
        Don't add EH_RETURN_STACKADJ_RTX to sp in sibcall epilogues.

2019-05-13  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/89221
        * configure.ac (--enable-frame-pointer):
        Disable by default for cygwin and mingw.
        * configure: Regenerate.

2019-05-13  Nathan Sidwell  <nathan@acm.org>

        * dwarf2out.c (breakout_comdat_types): Move comment to correct
        piece of code.
        (const_ok_for_output_1): Balance parens around #if/#else/#endif
        (gen_member_die): Move abstract origin check earlier.  Only VARs
        can be static_inline_p.  Simplify splicing control flow.

2019-05-13  Richard Biener  <rguenther@suse.de>

        * tree-vect-slp.c (vect_get_and_check_slp_defs): Handle
        VIEW_CONVERT_EXPR.
        (vect_build_slp_tree_1): Likewise.

2019-05-13  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90402
        * tree-if-conv.c (tree_if_conversion): Value number only
        the loop body by making the latch an exit of the region
        as well.
        * tree-ssa-sccvn.c (process_bb): Add flag whether to skip
        processing PHIs.
        (do_rpo_vn): Deal with multiple edges into the entry block
        that are not backedges inside the region by skipping PHIs
        of the entry block.

2019-05-13  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90316
        * tree-ssa-pre.c (insert_aux): Fold into ...
        (insert): ... this function.  Use a RPO walk to reduce the
        number of required iterations.

2019-05-13  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/90416
        * tree-vect-stmts.c (vect_check_load_store_mask): Concatenate
        string instead of passing the second part as va_arg argument.

2019-05-13  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/90380
        * gcov.c (handle_cycle): Do not support zero cycle count,
        it should not be possible.
        (path_contains_zero_cycle_arc): New function.
        (circuit): Ignore zero cycle arc counts.

2019-05-13  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/90380
        * gcov.c (enum loop_type): Remove the enum and
        the operator.
        (handle_cycle): Assert that we should not reach
        a negative count.
        (circuit): Use loop_found instead of a tri-state loop_type.
        (get_cycles_count): Do not handle NEGATIVE_LOOP as it can't
        happen.

2019-05-12  Iain Sandoe  <iain@sandoe.co.uk>

        PR target/82920
        * config/i386/i386.c (ix86_output_jmp_thunk_or_indirect): New.
        (ix86_output_indirect_branch_via_reg): Use output mechanism
        accounting for __USER_LABEL_PREFIX__.
        (ix86_output_indirect_branch_via_push): Likewise.
        (ix86_output_function_return): Likewise.
        (ix86_output_indirect_function_return): Likewise.

2019-05-12  Richard Sandiford  <richard.sandiford@arm.com>

        * doc/md.texi: Document use of code attributes in rtx patterns.
        * read-md.h (rtx_reader::rtx_alloc_for_name): New member function.
        * read-rtl.c (find_code): Split out search loops into...
        (maybe_find_code): ...this new function.
        (check_code_iterator): Make the error message more informative.
        (check_code_attribute): New function.
        (rtx_reader::rtx_alloc_for_name): Likewise.
        (rtx_reader::read_rtx_code): Use rtx_alloc_for_name.
        * config/aarch64/predicates.md (aarch64_smin, aarch64_umin): Delete.
        * config/aarch64/aarch64-simd.md (*aarch64_<su>abd<mode>_3): Use
        <max_opp> directly as an rtx code instead of via a match_operator.
        * config/aarch64/aarch64-sve.md (aarch64_<su>abd<mode>_3): Likewise.
        (<su>abd<mode>_3): Update accordingly.

2019-05-12  Iain Sandoe  <iain@sandoe.co.uk>

        * config/rs6000/rs6000.c (debug_stack_info): When -mdebug=stack
        is given, print the state of the EH "save world" computation for
        Darwin.

2019-05-11  Jakub Jelinek  <jakub@redhat.com>

        PR c++/59813
        * config/aarch64/aarch64.c (aarch64_expand_epilogue): Don't add
        EH_RETURN_STACKADJ_RTX to sp in sibcall epilogues.

2019-05-11  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (floatdi<X87MODEF:mode>2_i387_with_xmm):
        Use pinsrd for TARGET_SSE4_1.
        * config/i386/sse.md (movdi_to_sse): Ditto.

2019-05-10  Richard Biener  <rguenther@suse.de>

        * tree-ssa-sccvn.c (visit_reference_op_call): Initialize value-id.
        (do_rpo_vn): Initialize next_value_id.

2019-05-10  Martin Liska  <mliska@suse.cz>

        * params.def (PARAM_GIMPLE_FE_COMPUTED_HOT_BB_THRESHOLD):
        Fix plural form.

2019-05-10  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/90385
        * tree-parloops.c (try_create_reduction_list): Punt on non-SSA_NAME
        arguments of the exit phis.

        PR c++/90383
        * tree-inline.h (struct copy_body_data): Add do_not_fold member.
        * tree-inline.c (remap_gimple_op_r): Avoid folding expressions if
        id->do_not_fold.
        (copy_tree_body_r): Likewise.
        (copy_fn): Set id.do_not_fold to true.

2019-05-10  Martin Liska  <mliska@suse.cz>

        * config/i386/i386-expand.c (ix86_expand_floorceildf_32):
        Reapply changes from r269790.

2019-05-10  Martin Liska  <mliska@suse.cz>

        PR middle-end/90340
        * doc/invoke.texi: New params.
        * params.def (PARAM_JUMP_TABLE_MAX_GROWTH_RATIO_FOR_SIZE): New.
        (PARAM_JUMP_TABLE_MAX_GROWTH_RATIO_FOR_SPEED): Likewise.
        * tree-switch-conversion.c (jump_table_cluster::can_be_handled):
        Use it.
        * tree-switch-conversion.h (struct jump_table_cluster):
        Likewise.

2019-05-09  Segher Boessenkool  <segher@kernel.crashing.org>

        * combine.c (combine_simplify_rtx): Don't make IF_THEN_ELSE RTL.

2019-05-09  Bill Schmidt  <wschmidt@linux.ibm.com>

        * doc/loop.texi: Remove reference to FOR_EACH_LOOP_BREAK.

2019-05-09  Alexander Monakov  <amonakov@ispras.ru>

        PR rtl-optimization/88879
        * sel-sched.c (sel_target_adjust_priority): Remove assert.

2019-05-09  Richard Earnshaw  <rearnsha@arm.com>

        PR target/90405
        * config/arm/arm.c (callee_saved_reg_p): Move before
        thumb_find_work_register.
        (thumb1_prologue_unused_call_clobbered_lo_regs): Move before
        thumb_find_work_register.  Only call df_get_live_out once.
        (thumb1_epilogue_unused_call_clobbered_lo_regs): Likewise.
        (thumb_find_work_register): Use
        thumb1_prologue_unused_call_clobbered_lo_regs instead of ad hoc
        algorithms to locate a spare call clobbered reg.

2019-05-09  Martin Liska  <mliska@suse.cz>

        * gimple-pretty-print.c (dump_binary_rhs): Dump MIN_EXPR
        and MAX_EXPR in GIMPLE FE format.

2019-05-09  Martin Liska  <mliska@suse.cz>

        * tree-cfg.c (dump_function_to_file): Dump entry BB count.
        * gimple-pretty-print.c (dump_gimple_bb_header):
        Dump BB count.
        (pp_cfg_jump): Dump edge probability.
        * profile-count.c (profile_quality_as_string): Simplify
        with a static array.
        (parse_profile_quality): New function.
        (profile_count::dump): Simplify with a static array.
        (profile_count::from_gcov_type): Add new argument.
        * profile-count.h (parse_profile_quality): Likewise.
        * predict.h (set_hot_bb_threshold): New.
        * params.def (PARAM_GIMPLE_FE_COMPUTED_HOT_BB_THRESHOLD):
        New param.
        * predict.c (get_hot_bb_threshold): Set from the new param.
        (set_hot_bb_threshold): New.

2019-05-09  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90395
        * tree-ssa-forwprop.c (pass_forwprop::execute): Do not
        rewrite vector stores that throw internally.

2019-05-09  Thomas Schwinge  <thomas@codesourcery.com>

        * cif-code.def (CHKP): Remove.

        PR target/89221
        * configure.ac (--enable-frame-pointer): Disable by default for
        GNU systems.
        * configure: Regenerate.

2019-05-09  Alan Modra  <amodra@gmail.com>

        PR target/89271
        * config/rs6000/rs6000.h (enum reg_class, REG_CLASS_NAMES),
        (REG_CLASS_CONTENTS): Add GEN_OR_VSX_REGS class.
        * config/rs6000/rs6000.c (rs6000_register_move_cost): Correct
        cost for general <-> vsx when direct moves are available.
        Cost union classes at minimal cost for any reg in the class.
        Correct calculation for moves between vsx, float, and altivec.
        Don't return a low cost for moves between special regs.  Don't
        use hard coded register numbers.
        (TARGET_IRA_CHANGE_PSEUDO_ALLOCNO_CLASS): Define.
        (rs6000_ira_change_pseudo_allocno_class): New function.
        * config/rs6000/rs6000.md (movsi_internal1, mov<mode>_internal),
        (movdi_internal32, movdi_internal64): Remove '*' from vsx register
        alternatives.
        (movsi_internal1): Don't disparage vector alternatives.
        (mov<mode>_internal): Likewise, excepting alternative that
        will be split.
        * config/rs6000/vsx.md (vsx_splat_<mode>_reg): Don't disparage
        we <- b alternative.

2019-05-08  Jakub Jelinek  <jakub@redhat.com>

        PR c++/59813
        PR tree-optimization/89060
        * tree-ssa-live.h (live_vars_map): New typedef.
        (compute_live_vars, live_vars_at_stmt, destroy_live_vars): Declare.
        * tree-ssa-live.c: Include gimple-walk.h and cfganal.h.
        (struct compute_live_vars_data): New type.
        (compute_live_vars_visit, compute_live_vars_1, compute_live_vars,
        live_vars_at_stmt, destroy_live_vars): New functions.
        * tree-tailcall.c: Include tree-ssa-live.h.
        (live_vars, live_vars_vec): New global variables.
        (find_tail_calls): Perform variable life analysis before punting.
        (tree_optimize_tail_calls_1): Clean up live_vars and live_vars_vec.
        * tree-inline.h (struct copy_body_data): Add eh_landing_pad_dest
        member.
        * tree-inline.c (add_clobbers_to_eh_landing_pad): Remove BB argument.
        Perform variable life analysis to select variables that really need
        clobbers added.
        (copy_edges_for_bb): Don't call add_clobbers_to_eh_landing_pad here,
        instead set id->eh_landing_pad_dest and assert it is the same.
        (copy_cfg_body): Call it here if id->eh_landing_pad_dest is non-NULL.

2019-05-08  Mihail Ionescu  <mihail.ionescu@arm.com>
            Richard Earnshaw  <rearnsha@arm.com>

        PR target/88167
        * config/arm/arm.c (thumb1_prologue_unused_call_clobbered_lo_regs): New
        function.
        (thumb1_epilogue_unused_call_clobbered_lo_regs): New function.
        (thumb1_compute_save_core_reg_mask): Don't force a spare work
        register if both the epilogue and prologue can use call-clobbered
        regs.
        (thumb1_unexpanded_epilogue): Use
        thumb1_epilogue_unused_call_clobbered_lo_regs.  Reverse the logic for
        picking temporaries for restoring high regs to match that of the
        prologue where possible.
        (thumb1_expand_prologue): Add any usable call-clobbered low registers to
        the list of work registers.  Detect if the return address is still live
        at the end of the prologue and avoid using it for a work register if so.
        If the return address is not live, add LR to the list of pushable regs
        after the first pass.

2019-05-08  Bin Cheng  <bin.cheng@linux.alibaba.com>

        PR tree-optimization/90078
        * tree-ssa-loop-ivopts.c (inttypes.h): Include new header file.
        (INFTY): Increase the value for infinite cost.
        (struct comp_cost): Promote type of members to int64_t.
        (infinite_cost): Don't set complexity in initialization.
        (comp_cost::operator +,-,+=,-+,/=,*=): Assert when cost computation
        overflows to infinite_cost.
        (adjust_setup_cost): Promote type of parameter and cost computation
        to int64_t.
        (struct ainc_cost_data, struct iv_ca): Promote type of member to
        int64_t.
        (get_scaled_computation_cost_at, determine_iv_cost): Promote type of
        cost computation to int64_t.
        (determine_group_iv_costs, iv_ca_dump, find_optimal_iv_set): Use
        int64_t's format specifier in dump.

2019-05-08  Bin Cheng  <bin.cheng@linux.alibaba.com>

        PR tree-optimization/90240
        * tree-ssa-loop-ivopts.c (get_scaled_computation_cost_at): Scale cost
        with respect to scaling factor pre-computed for each basic block.
        (try_improve_iv_set): Return bool if best_cost equals to iv_ca cost.
        (find_optimal_iv_set_1): Free iv_ca set if it has infinite_cost.
        (COST_SCALING_FACTOR_BOUND, determine_scaling_factor): New.
        (tree_ssa_iv_optimize_loop): Call determine_scaling_factor.  Extend
        live range for array of loop's basic blocks.  Cleanup aux field of
        loop's basic blocks.

2019-05-08  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/90356
        * match.pd ((X +/- 0.0) +/- 0.0): Optimize into X +/- 0.0 if possible.

2019-05-07  Wei Xiao  <wei3.xiao@intel.com>

        * common/config/i386/i386-common.c (OPTION_MASK_ISA_AVX512BF16_SET
        OPTION_MASK_ISA_AVX512BF16_UNSET, OPTION_MASK_ISA2_AVX512BW_UNSET): New.
        (OPTION_MASK_ISA2_AVX512F_UNSET): Add OPTION_MASK_ISA_AVX512BF16_UNSET.
        (ix86_handle_option): Handle -mavx512bf16.
        * config.gcc: Add avx512bf16vlintrin.h and avx512bf16intrin.h
        to extra_headers.
        * config/i386/avx512bf16vlintrin.h: New.
        * config/i386/avx512bf16intrin.h: New.
        * config/i386/cpuid.h (bit_AVX512BF16): New.
        * config/i386/driver-i386.c (host_detect_local_cpu): Detect BF16.
        * config/i386/i386-builtin-types.def: Add new types.
        * config/i386/i386-builtin.def: Add new builtins.
        * config/i386/i386-c.c (ix86_target_macros_internal): Define
        __AVX512BF16__.
        * config/i386/i386-option.c (ix86_target_string): Add -mavx512bf16.
        (ix86_option_override_internal): Handle BF16.
        (ix86_valid_target_attribute_inner_p): Ditto.
        * config/i386/i386-expand.c (ix86_expand_args_builtin): Ditto.
        * config/i386/i386-builtin.c (enum processor_features): Add
        F_AVX512BF16.
        (static const _isa_names_table isa_names_table): Ditto.
        * config/i386/i386.h (TARGET_AVX512BF16, TARGET_AVX512BF16_P): New.
        (PTA_AVX512BF16): Ditto.
        * config/i386/i386.opt: Add -mavx512bf16.
        * config/i386/immintrin.h: Include avx512bf16intrin.h
        and avx512bf16vlintrin.h.
        * config/i386/sse.md (avx512f_cvtne2ps2bf16_<mode><mask_name>,
        avx512f_cvtneps2bf16_<mode><mask_name>,
        avx512f_dpbf16ps_<mode><mask_half_name>): New define_insn patterns.
        * config/i386/subst.md (mask_half): Add new subst.
        * doc/invoke.texi: Document -mavx512bf16.

2019-05-07  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000-protos.h (rs6000_legitimize_reload_address_ptr):
        Delete declaration.
        * config/rs6000/rs6000.c (rs6000_legitimize_reload_address): Delete.
        (rs6000_debug_legitimize_reload_address): Delete.
        (rs6000_legitimize_reload_address_ptr): Delete.
        (rs6000_option_override_internal): Adjust.
        (mem_operand_gpr): Adjust comment.
        (legitimate_lo_sum_address_p): Ditto.
        (rs6000_legitimize_reload_address): Delete.
        (rs6000_debug_legitimize_reload_address): Delete.
        * config/rs6000/rs6000.h (LEGITIMIZE_RELOAD_ADDRESS): Delete.

2019-05-07  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        PR target/89765
        * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
        In handling of ALTIVEC_BUILTIN_VEC_INSERT, use modular arithmetic
        to compute vector element selector for both constant and variable
        operands.

2019-05-07  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (cvt_mnemonic): New mode attribute.
        (ashr<mode>3_cvt): Merge insn pattern from ashrsi3_cvt and
        ashrdi3_cvt using SWI48 mode iterator.

2019-05-07  Alejandro Martinez  <alejandro.martinezvicente@arm.com>

        * config/aarch64/aarch64-sve.md (<su>abd<mode>_3): New define_expand.
        (aarch64_<su>abd<mode>_3): Likewise.
        (*aarch64_<su>abd<mode>_3): New define_insn.
        (<sur>sad<vsi2qi>): New define_expand.
        * config/aarch64/iterators.md: Added MAX_OPP attribute.
        * tree-vect-loop.c (use_mask_by_cond_expr_p): Add SAD_EXPR.
        (build_vect_cond_expr): Likewise.

2019-05-07  Uroš Bizjak  <ubizjak@gmail.com>

        * cfgexpand.c (asm_clobber_reg_is_valid): Reject
        clobbers outside of accessible_reg_set.
        * config/i386/i386.c (ix86_conditional_register_usage):
        Disable register sets by clearing corresponding bits in
        accessible_reg_set.  Do not set corresponding bits in fixed_regs,
        call_used_regs and don't clear corresponding reg_names array members.

2019-05-07  Richard Biener  <rguenther@suse.de>

        * tree-vect-stmts.c (vect_is_simple_cond): When vectype is
        not specified still compute a comp_vectype for invariant
        compares.

2019-05-07  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90316
        * tree-ssa-pre.c (translate_vuse_through_block): When
        same_valid is NULL do not bother to search for a virtual
        PHI continuation.
        (phi_translate_1): When operands changed we cannot keep
        the same value-number so do not bother to ask whether
        that's possible from translate_vuse_through_block.

2019-05-07  Martin Liska  <mliska@suse.cz>

        * bitmap.c (bitmap_register): Come up with
        alloc_descriptor_max_uid and assign it for
        a new bitmap.
        (register_overhead): Use get_descriptor as
        a descriptor.
        (release_overhead): New.
        (bitmap_elem_to_freelist): Call it.
        (bitmap_elt_clear_from): Likewise.
        (bitmap_obstack_free): Likewise.
        (bitmap_move): Sensitively release memory.
        * bitmap.h (struct GTY): Add alloc_descriptor and padding.
        (bitmap_initialize): Initialize alloc_descriptor to zero.
        * tree-ssa-pre.c (do_hoist_insertion): Use bitmap_move.

2019-05-07  Richard Biener  <rguenther@suse.de>

        * tree-vect-slp.c (vect_build_slp_tree_2): Bump size whenever
        we build a SLP node.  Remove max_size and limiting.
        (vect_analyze_slp_instance): Record and dump size of the SLP graph.

2019-05-07  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90316
        * tree-ssa-alias.h (get_continuation_for_phi): Take walking
        limit by reference.
        (walk_non_aliased_vuses): Take walking limit argument.
        * tree-ssa-alias.c (maybe_skip_until): Take limit and abort
        walking if it is reached instead of just counting.
        (get_continuation_for_phi): Likewise.
        (walk_non_aliased_vuses): Likewise, instead of leaving counter
        limiting to the callback.
        * tree-ssa-sccvn.c (vn_reference_lookup_2): Adjust.
        (vn_reference_lookup_3): Likewise.
        (vn_reference_lookup_pieces): Likewise.
        (vn_reference_lookup): Likewise.
        * tree-ssa-pre.c (translate_vuse_through_block): Limit walking.
        * tree-ssa-scopedtables.c (vuse_eq): Adjust.
        (avail_exprs_stack::lookup_avail_expr): Likewise.

2019-05-07  Jan Hubicka  <hubicka@ucw.cz>

        * tree-ssa-alias.c (aliasing_component_refs_p): Continue looking
        for comparaible types in the second direction even if first one
        hits incomparable type.

2019-05-07  Richard Biener  <rguenther@suse.de>

        PR lto/90369
        * lto-wrapper.c (debug_objcopy): Use the original filename
        including archive offset for the filename used for -save-temps.

2019-05-07  Li Jia He  <helijia@linux.ibm.com>

        * tree-ssa-phiopt.c (two_value_replacement): Fix a typo in parameter
        detection.

2019-05-06  H.J. Lu  <hongjiu.lu@intel.com>
            Hongtao Liu  <hongtao.liu@intel.com>

        PR target/89750
        PR target/86444
        * config/i386/i386-expand.c (ix86_expand_sse_comi_round):
        Modified, original implementation isn't correct.

2019-05-06  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (FIRST_ALTIVEC_REGNO, LAST_ALTIVEC_REGNO)
        (LR_REGNO, CTR_REGNO, CA_REGNO, ARG_POINTER_REGNUM, CR0_REGNO)
        (CR1_REGNO, CR2_REGNO, CR3_REGNO, CR4_REGNO, CR5_REGNO, CR6_REGNO)
        (CR7_REGNO, MAX_CR_REGNO, VRSAVE_REGNO, VSCR_REGNO)
        (FRAME_POINTER_REGNUM): Change numbering.
        * config/rs6000/rs6000.c (rs6000_reg_names): Adjust.
        (alt_reg_names): Adjust.
        (rs6000_conditional_register_usage): Don't mark hard register 64 as
        fixed.
        * config/rs6000/rs6000.h (FIRST_PSEUDO_REGISTER): Adjust.
        (DWARF_FRAME_REGISTERS): Delete.
        (DWARF2_FRAME_REG_OUT): Fix whitespace.
        (FIXED_REGISTERS, CALL_USED_REGISTERS, CALL_REALLY_USED_REGISTERS):
        Adjust.
        (REG_ALLOC_ORDER): Adjust.
        (FRAME_POINTER_REGNUM, ARG_POINTER_REGNUM): Adjust.
        (REG_CLASS_CONTENTS): Adjust.
        (RETURN_ADDR_RTX): Change comment.
        (REGNO_OK_FOR_INDEX_P, REGNO_OK_FOR_BASE_P): Use ARG_POINTER_REGNUM
        instead of 67.
        (REGISTER_NAMES): Adjust.
        (ADDITIONAL_REGISTER_NAMES): Adjust.
        * config/rs6000/darwin.h (REGISTER_NAMES): Adjust.

2019-05-06  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (TFHAR_REGNO, TFIAR_REGNO, TEXASR_REGNO):
        Delete.
        * config/rs6000/rs6000.h (FIRST_PSEUDO_REGISTER): Adjust.
        (DWARF_FRAME_REGISTERS): Adjust.
        (FIXED_REGISTERS, CALL_USED_REGISTERS, CALL_REALLY_USED_REGISTERS):
        Adjust.
        (REG_ALLOC_ORDER): Adjust.
        (enum reg_class): Delete SPR_REGS.
        (REG_CLASS_NAMES): Delete SPR_REGS.
        (REG_CLASS_CONTENTS): Delete SPR_REGS.  Adjust for deleted TM regs.
        (REGISTER_NAMES): Adjust.
        (ADDITIONAL_REGISTER_NAMES): Adjust.
        * config/rs6000/darwin.h (REGISTER_NAMES): Adjust.
        * config/rs6000/htm.md (htm_mfspr_<mode>, htm_mtspr_<mode>): Adjust.
        * config/rs6000/predicates.md (htm_spr_reg_operand): Delete.
        * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Adjust.
        (htm_spr_regno): Delete.
        (htm_expand_builtin): Adjust: the HTM builtins now have one fewer
        argument.
        (rs6000_dbx_register_number): Adjust.

2019-05-06  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.h (PRE_GCC3_DWARF_FRAME_REGISTERS): Delete.

2019-05-06  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (rs6000_dbx_register_number): Handle
        FRAME_POINTER_REGNUM, ARG_POINTER_REGNUM, and 64 (which was MQ).

2019-05-06  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/88709
        PR tree-optimization/90271
        * params.def (PARAM_STORE_MERGING_MAX_SIZE): New parameter.
        * gimple-ssa-store-merging.c (encode_tree_to_bitpos): Handle
        non-clobber CONSTRUCTORs with no elts.  Remove useless tmp_int
        variable.
        (imm_store_chain_info::coalesce_immediate_stores): Punt if the size
        of the store merging group is larger than
        PARAM_STORE_MERGING_MAX_SIZE parameter.
        (split_group): Add bzero_first argument.  If set, always emit first
        the first store which must be = {} of the whole area and then for the
        rest of the stores consider all zero bytes as paddings.
        (imm_store_chain_info::output_merged_store): Check if first store
        is = {} of the whole area and if yes, determine which setting of
        bzero_first for split_group gives smaller number of stores.  Adjust
        split_group callers.
        (lhs_valid_for_store_merging_p): Allow decls.
        (rhs_valid_for_store_merging_p): Allow non-clobber CONTRUCTORs with
        no elts.
        (pass_store_merging::process_store): Likewise.

2019-05-06  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        PR target/89424
        * config/rs6000/rs6000.c (rs6000_expand_vector_extract): Add
        handling of V1TImode.

2019-05-06  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/89221
        * config.gcc (i[34567]86-*-*, x86_64-*-*): Move tests for enable_cld
        and enable_frame_pointer ...
        * configure.ac: ... here.  Update help strings for
        --enable-frame-pointer.
        * configure: Regenerate.
        * config/i386/i386-options.c (ix86_option_override_internal): Remove
        USE_X86_64_FRAME_POINTER define, use USE_IX86_FRAME_POINTER instead.
        * config/i386/sol2.h (USE_IX86_FRAME_POINTER): Remove.
        (USE_X86_64_FRAME_POINTER): Ditto.

2019-05-06  Martin Liska  <mliska@suse.cz>

        * config.gcc: Append to target_gtfiles and fix indentation.

2019-05-06  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90358
        * tree-vect-stmts.c (get_group_load_store_type): Properly
        detect unused upper half of load.
        (vectorizable_load): Likewise.

2019-05-06  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/88828
        * tree-ssa-forwprop.c (get_bit_field_ref_def): Split out from...
        (simplify_vector_constructor): ...here.  Handle constants in
        the constructor.

2019-05-06  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90328
        * tree-data-ref.h (dr_may_alias_p): Pass in the actual loop nest.
        * tree-data-ref.c (dr_may_alias_p): Check whether the clique
        is valid in the loop nest before using it.
        (initialize_data_dependence_relation): Adjust.
        * graphite-scop-detection.c (build_alias_set): Pass the SCOP enclosing
        loop as loop-nest to dr_may_alias_p.

2019-05-06  Richard Biener  <rguenther@suse.de>

        * dwarf2out.c (mem_loc_descriptor): Initialize int_mode.

2019-05-06  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90316
        * tree-ssa-alias.c (maybe_skip_until): Pass in target BB,
        compute target on demand.
        (get_continuation_for_phi): Remove code walking stmts to
        get to a target virtual operand which could end up being
        quadratic.

2019-05-06  Martin Liska  <mliska@suse.cz>

        PR sanitizer/90312
        * config/i386/i386-options.c (ix86_option_override_internal): Error only
        when -mabi is selected to a non-default version.

2019-05-06  Hrishikesh Kulkarni  <hrishikeshparag@gmail.com>
            Martin Liska  <mliska@suse.cz>

        * Makefile.in: Add lto-dump.texi.
        * cgraph.h: Add new functions get_visibility_string and
        get_symtab_type_string.
        * doc/gcc.texi: Include lto-dump section.
        * doc/lto-dump.texi: New file.
        * dumpfile.c (dump_switch_p_1): Use parse_dump_option.
        (parse_dump_option): Factor out this function.
        * dumpfile.h (enum dump_flag): Add new value TDF_ERROR.
        (parse_dump_option): Export the function.
        * symtab.c (symtab_node::get_visibility_string): New function.
        (symtab_node::get_symtab_type_string): Likewise.

2019-05-06  Martin Liska  <mliska@suse.cz>

        * config/i386/i386-builtins.c: New file.
        * config/i386/i386-builtins.h: New file.
        * config/i386/i386-expand.c: New file.
        * config/i386/i386-expand.h: New file.
        * config/i386/i386-features.c: New file.
        * config/i386/i386-features.h: New file.
        * config/i386/i386-options.c: New file.
        * config/i386/i386-options.h: New file.
        * config.gcc: Add new files into extra_objs and
        target_gtfiles.
        * config/i386/i386.c: Split content of the file
        into newly introduced files.
        * config/i386/i386.h: Declare common variables
        and macros.
        * config/i386/t-i386: Define dependencies for new files.

2019-05-03  Richard Earnshaw  <rearnsha@arm.com>

        PR target/89400
        * config/arm/arm.md (unaligned_loadsi): Add variant for thumb1.
        Restrict 'all' variant to 32-bit configurations.
        (unaligned_loadhiu): Likewise.
        (unaligned_storehi): Likewise.
        (unaligned_storesi): Likewise.
        (unaligned_loadhis): Disable when compiling for thumb1.

2019-05-03  Marc Glisse  <marc.glisse@inria.fr>

        PR tree-optimization/90269
        * tree-loop-distribution.c (find_seed_stmts_for_distribution):
        Ignore clobbers.

2019-05-03  Martin Liska  <mliska@suse.cz>

        * hash-map.h: Add is_empty function.
        * hash-set.h: Likewise.
        * hash-table.h: Likewise.
        * dwarf2out.c (dwarf2out_finish): Use is_empty instead of
        elements () == 0 (and similar usages).
        * gimple-ssa-store-merging.c (pass_store_merging::terminate_and_process_all_chains): Likewise.
        * gimplify.c (gimplify_bind_expr): Likewise.
        (gimplify_switch_expr): Likewise.
        * hash-map-tests.c (test_map_of_strings_to_int): Likewise.
        * ipa-icf.c (sem_item_optimizer::remove_symtab_node): Likewise.
        * postreload-gcse.c (dump_hash_table): Likewise.
        (gcse_after_reload_main): Likewise.
        * predict.c (combine_predictions_for_bb): Likewise.
        * tree-parloops.c (reduction_phi): Likewise.
        (separate_decls_in_region): Likewise.
        (transform_to_exit_first_loop): Likewise.
        (gen_parallel_loop): Likewise.
        (gather_scalar_reductions): Likewise.
        (try_create_reduction_list): Likewise.
        * var-tracking.c (dump_vars): Likewise.
        (emit_notes_for_changes): Likewise.
        (vt_emit_notes): Likewise.

2019-05-03  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90316
        * tree-ssa-pre.c (pass_pre::execute): Re-compute DOM fast queries
        before running VN.

2019-05-03  Richard Biener  <rguenther@suse.de>

        * tree-vect-stmts.c (get_group_load_store_type): Avoid
        peeling for gaps by loading only lower halves of vectors
        if possible.
        (vectorizable_load): Likewise.

2019-05-03  Richard Biener  <rguenther@suse.de>

        PR middle-end/89518
        * match.pd: Add pattern to optimize (A / B) * B + (A % B) to A.

2019-05-03  Richard Biener  <rguenther@suse.de>

        PR middle-end/87314
        * match.pd (cmp (convert1?@2 addr@0) (convert2? addr@1)):
        Handle STRING_CST vs DECL or STRING_CST.

2019-05-03  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/88963
        * tree-ssa-forwprop.c (pass_forwprop::execute): Rewrite
        vector loads feeding only BIT_FIELD_REFs to component
        loads.  Rewrite stores fed by CONSTRUCTORs to component
        stores.

2019-05-03  Jakub Jelinek  <jakub@redhat.com>

        * opts.h (finish_options): Remove lang_mask argument.
        (print_help, help_option_argument): Declare.
        * opts.c (print_help): Remove forward declaration, no longer static.
        (finish_options): Remove lang_mask argument, don't call print_help
        here.
        * opts-global.c (decode_options): Adjust finish_option caller, call
        print_help here.

        PR tree-optimization/90303
        * ipa-devirt.c (obj_type_ref_class, get_odr_type): Don't use
        TYPE_CANONICAL for TYPE_STRUCTURAL_EQUALITY_P types in !in_lto_p mode.

2019-05-03  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89698
        * gimple-fold.c (canonicalize_constructor_val): Early out
        for constants, handle unfolded INTEGER_CSTs as they appear in
        C++ virtual table ctors.

2019-05-03  Richard Biener  <rguenther@suse.de>

        * passes.c (execute_function_todo): Remove dead code.

2019-05-02  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (rs6000_dbx_register_number): Do not use
        the internal register number, for any "real" register.

2019-05-02  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (rs6000_dbx_register_number): Return the
        correct numbers for TFHAR, TFIAR, TEXASR.

2019-05-02  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89653
        * tree-ssa-loop.c (pass_data_tree_loop_init): Execute
        update-address-taken before the pass.
        * passes.def (pass_tree_loop_init): Put comment before it.

2019-05-02  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89509
        * tree-ssa-structalias.c (compute_dependence_clique): Look
        at the first subvar when determining whether it is restrict.

2019-05-02  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90273
        * tree-ssa-dce.c (eliminate_unnecessary_stmts): Eliminate
        useless debug stmts.

2019-05-02  Alejandro Martinez  <alejandro.martinezvicente@arm.com>

        * config/aarch64/aarch64-sve.md (<sur>dot_prod<vsi2qi>): Taken from SVE
        ACLE branch.
        * config/aarch64/iterators.md: Copied Vetype_fourth, VSI2QI and vsi2qi from
        SVE ACLE branch.
        * tree-vect-loop.c (use_mask_by_cond_expr_p): New function to check if a
        VEC_COND_EXPR be inserted to emulate a conditional internal function.
        (build_vect_cond_expr): Emit the VEC_COND_EXPR.
        (vectorizable_reduction): Use the functions above to vectorize in a
        fully masked loop codes that don't have a conditional internal
        function.

2019-05-02  Martin Liska  <mliska@suse.cz>

        * cgraphclones.c: Call valid_attribute_p with 1 for
        target_clone.
        * config/i386/i386-c.c (ix86_pragma_target_parse): Use 0 as
        it's for target attribute.
        * config/i386/i386-protos.h (ix86_valid_target_attribute_tree):
        Add new boolean argument.
        * config/i386/i386.c (ix86_valid_target_attribute_inner_p):
        Likewise.
        (ix86_valid_target_attribute_tree): Pass target_clone_attr
        to ix86_valid_target_attribute_inner_p.
        (ix86_valid_target_attribute_p): Pass flags argument to
        ix86_valid_target_attribute_inner_p.
        (get_builtin_code_for_version): Use 0 as it's target attribute.

2019-05-02  Martin Liska  <mliska@suse.cz>

        * gcc.c (process_command): Add dummy file only
        if n_infiles == 0.
        * opts-global.c (decode_options): Pass lang_mask.
        * opts.c (print_help): New function.
        (finish_options): Print --help if help_option_argument
        is set.
        (common_handle_option): Factor out content of OPT__help_
        into print_help.
        * opts.h (finish_options): Add new argument.

2019-05-02  Martin Liska  <mliska@suse.cz>

        PR target/88809
        * config/i386/i386.c (ix86_expand_strlen): Use strlen call.
        With -minline-all-stringops use inline expansion using 4B loop.
        * doc/invoke.texi: Document the change of
        -minline-all-stringops.

2019-05-01  Jeff Law  <law@redhat.com>

        PR tree-optimization/88797
        * gimple-ssa-split-paths (is_feasible_trace): Reject cases where the
        PHI feeds a conditional on the RHS of an assignment.

2019-04-30  Andrew Waterman  <andrew@sifive.com>
            Jim Wilson  <jimw@sifive.com>

        * config/riscv/constraints.md (L): New.
        * config/riscv/predicates.md (lui_operand): New.
        (sfb_alu_operand): New.
        * config/riscv/riscv-protos.h (riscv_expand_conditional_move): Declare.
        * config/riscv/riscv.c (riscv_expand_conditional_move): New.
        * config/riscv/riscv.h (TARGET_SFB_ALU): New.
        * config/riscv/risc.md (type): Add sfb_alu.
        (branch<mode>): Renamed from branch_order<mode>.  Change predicate for
        operand 3 to reg_or_0_operand.  In output string, change %3 to %z3.
        (branch_zero<mode>): Delete.
        (mov<mode>cc): New.
        (mov<GPR:mode><X:mode>cc): Likewise.
        * config/riscv/sifive-7.md (sifive_7_sfb_alu): New.  Use in bypasses.

2019-04-30  Nathan Sidwell  <nathan@acm.org>

        * tree.h (MARK_TS_EXP): New.

2019-04-30  Martin Liska  <mliska@suse.cz>

        * opts.c (enable_warning_as_error): Provide hints
        for unknown options.

2019-04-30  Martin Liska  <mliska@suse.cz>

        PR debug/90288
        * doc/invoke.texi: Add missing dash for gas-locview-support
        and gno-as-locview-support.

2019-04-30  Jakub Jelinek  <jakub@redhat.com>

        PR target/89093
        * config/aarch64/aarch64.c (aarch64_process_one_target_attr): Don't skip
        whitespace at the start of target attribute string.

2019-04-30  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        PR target/86538
        * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
        Define __ARM_FEATURE_ATOMICS.

2019-04-30  Martin Liska  <mliska@suse.cz>

        * gimple-fold.c (gimple_fold_builtin_memory_op): Change endp
        into built_in_function enum. Remove code for endp == 2 and
        use BUILT_IN_* constants.
        (gimple_fold_builtin): Call the function with fcode.

2019-04-30  Martin Liska  <mliska@suse.cz>

        * config/i386/i386.c (ix86_builtin_reciprocal): Cast
        DECL_FUNCTION_CODE into ix86_builtins enum before
        the switch statement.

2019-04-30  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/89475
        * tree-ssa-ccp.c (evaluate_stmt): Handle BUILT_IN_BSWAP{16,32,64}
        calls.

2019-04-30  Martin Liska  <mliska@suse.cz>

        PR translation/90274
        * opts.c (print_filtered_help): Wrap string in _(...).

2019-04-30  Bin Cheng  <bin.cheng@linux.alibaba.com>

        PR tree-optimization/90240
        Revert:
        2019-04-23  Bin Cheng  <bin.cheng@linux.alibaba.com>

        PR tree-optimization/90078
        * tree-ssa-loop-ivopts.c (comp_cost::operator +,-,+=,-+,/=,*=): Add
        checks for infinite_cost overflow.

2019-04-29  Jeff Law  <law@redhat.com>

        * passes.def: Move -Wrestrict pass after copy propagation.

2019-04-29  Maya Rashish  <coypu@sdf.org>

        * config.gcc (default_gnu_indirect_function): Default to yes
        for arm*-*-netbsd*, i[34567]86-*-netbsd*, powerpc*-*-netbsd*,
        sparc*-*-netbsd*, x86_64-*-netbsd*.

2019-04-29  Vladislav Ivanishin  <vlad@ispras.ru>

        * tree-ssa-uninit.c (is_pred_expr_subset_of): Correctly handle cases
        where cond2 is NE_EXPR.
        (is_value_included_in): Update comment.

2019-04-29  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90278
        * tree-ssa-forwprop.c (pass_forwprop::execute): Transfer/clean
        EH on comparison simplification.

2019-04-29  Jason Merrill  <jason@redhat.com>

        PR c++/82081 - tail call optimization breaks noexcept
        * tree-tailcall.c (find_tail_calls): Don't turn a call from a
        nothrow function to a might-throw function into a tail call.

2019-04-29  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-data-ref.h (data_dependence_relation::inner_loop): Delete.
        (DDR_INNER_LOOP): Likewise.
        * tree-data-ref.c (dump_data_dependence_relation): Update accordingly.
        (initialize_data_dependence_relation): Likewise.
        (insert_innermost_unit_dist_vector): Use 0 instead of DDR_INNER_LOOP.

2019-04-29  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/90257
        * cfgrtl.c (flow_active_insn_p): Return true for USE of a function
        return value.

        Revert the revert:
        2019-04-21  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/90178
        Revert:
        2018-11-21  Uros Bizjak  <ubizjak@gmail.com>

        Revert the revert:
        2013-10-26  Vladimir Makarov  <vmakarov@redhat.com>

        Revert:
        2013-10-25  Vladimir Makarov  <vmakarov@redhat.com>

        * lra-spills.c (lra_final_code_change): Remove useless move insns.

2019-04-29  Richard Biener  <rguenther@suse.de>

        * tree-ssa.c (insert_debug_temp_for_var_def): For {CLOBBER}
        rhs issue a reset.

2019-04-27  Iain Buclaw  <ibuclaw@gdcproject.org>

        * config/netbsd-d.c: Include memmodel.h.  Remove unused tree.h,
        varasm.h, and netbsd-protos.h.

2019-04-27  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/89261
        * config/i386/i386-protos.h (ix86_data_alignment): Change
        the second argument type to unsigned int.
        * config/i386/i386.c (ix86_data_alignment): Change "align"
        argument type to unsigned int.

2019-04-27  Martin Liska  <mliska@suse.cz>

        PR middle-end/90258
        * opt-suggestions.c (option_proposer::build_option_suggestions):
        When get_valid_option_values returns empty values, add the
        misspelling candidate.

2019-04-26  Jim Wilson  <jimw@sifive.com>

        * config/riscv/riscv-protos.h (riscv_move_integer): Add machine_mode
        parameter.
        * config/riscv/riscv.c (riscv_move_integer): New parameter orig_mode.
        Pass orig_mode to riscv_build_integer.
        (riscv_split_integer): Pass mode to riscv_move_integer.
        (riscv_legitimize_const_move): Likewise.
        (riscv_legitimize_move): For MEM dest and CONST_INT src case, new local
        promoted_mode.  Replace force_reg call with code to load constant into
        promoted reg and then subreg it for the store.
        * config/riscv/riscv.md (low<mode>+1): Pass <GPR:MODE>mode to
        riscv_move_integer.

2018-04-26  Eugene Sharygin  <eush@ispras.ru>

        * gdbhooks.py: Fix UnicodeDecodeErrors when printing trees with
        corrupt codes.

2019-04-26  Richard Sandiford  <richard.sandiford@arm.com>

        * tree.h (TYPE_VECTOR_SUBPARTS, SET_TYPE_VECTOR_SUBPARTS): Add
        commentary about the encoding of precision.

2019-04-25  Andreas Tobler  <andreast@gcc.gnu.org>

        * config/i386/freebsd64.h: Add bits for 32-bit multilib support.
        * config/i386/t-freebsd64: New file.
        * config.gcc: Add the t-freebsd64 for multilib support.

2019-04-25  Uroš Bizjak  <ubizjak@gmail.com>

        * doc/extend.texi (vector_size): Add missing comma after @xref.

2019-04-25  Jakub Jelinek  <jakub@redhat.com>

        * BASE-VER: Set to 10.0.0.

2019-04-25  Richard Biener  <rguenther@suse.de>

        PR middle-end/89765
        * gimplify.c (gimplify_expr): Avoid turning a lvalue
        VIEW_CONVERT_EXPR into one operating on an rvalue.

2019-04-25  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89929
        * config/i386/i386.c (feature_priority): Moved to file scope.
        (processor_features): Likewise.
        (processor_model): Likewise.
        (_arch_names_table): Likewise.
        (arch_names_table): Likewise.
        (_feature_list): Removed.
        (feature_list): Likewise.
        (_isa_names_table): Moved to file scope.  Add priority.
        (isa_names_table): Likewise.
        (get_builtin_code_for_version): Replace feature_list with
        isa_names_table.  Update error message for P_ZERO priority.

2019-04-25  Richard Biener  <rguenther@suse.de>

        * tree-pass.h (make_pass_phi_only_cprop): Remove.
        * timevar.def (TV_TREE_PHI_CPROP): Likewise.

2019-04-24  Jeff Law  <law@redhat.com>

        PR tree-optimization/90037
        * Makefile.in (OBJS): Remove tree-ssa-phionlycprop.c
        * passes.def: Replace all instance of phi-only cprop with the
        lattice propagator.  Move propagation pass from after erroneous
        path isolation to before erroneous path isolation.
        * tree-ssa-phionlycprop.c: Remove.

2019-04-24  Richard Biener  <rguenther@suse.de>

        PR middle-end/90213
        * gimple-fold.c (fold_const_aggregate_ref_1): Do multiplication
        by size and BITS_PER_UNIT on poly-wide-ints.

2019-04-25  Richard Biener  <rguenther@suse.de>

        PR middle-end/90194
        * match.pd: Add pattern to simplify view-conversion of an
        empty constructor.

2019-04-24  Clement Chigot  <clement.chigot@atos.net>

        * config/rs6000/aix71.h (SUBTARGET_OVERRIDE_OPTIONS): Disable
        OPTION_MASK_VSX and OPTION_MASK_ALTIVEC from rs6000_isa_flags
        for Go on 32 bit AIX.
        * config/rs6000/aix72.h: Likewise.

2019-04-24  Jakub Jelinek  <jakub@redhat.com>

        PR target/90193
        * rtl.c (classify_insn): Return JUMP_INSN for asm goto.
        * emit-rtl.c (try_split): Copy over REG_LABEL_TARGET.

2019-04-24  Andreas Krebbel  <krebbel@linux.ibm.com>

        PR target/89952
        * config/s390/s390.c (s390_restore_gprs_from_fprs): Restore GPRs
        from FPRs in reverse order.  Generate REG_CFA_DEF_CFA note also
        for restored hard frame pointer.
        (s390_sched_dependencies_evaluation): Implement new target hook.
        (TARGET_SCHED_DEPENDENCIES_EVALUATION_HOOK): New macro definition.

2019-04-24  Claudiu Zissulescu  <claziss@sysnopsys.com>

        * config/arc/arc-options.def: Fix typos and spelling mistakes.
        * config/arc/arc.c (arc_init): Cleanup warning message.
        (arc_override_options): Likewise.

2019-04-24  Jakub Jelinek  <jakub@redhat.com>

        PR target/90187
        * config/i386/i386.c (ix86_expand_sse_fp_minmax): Force if_true into
        a register if both if_true and if_false are MEMs.

        PR tree-optimization/90208
        * tree-cfg.c (remove_bb): Move forced labels from removed bbs
        after labels of new_bb, not before them.

        PR tree-optimization/90211
        * tree-parloops.c (try_create_reduction_list): Ignore phi arguments
        which are not SSA_NAMEs.

2018-04-23  Sudakshina Das  <sudi.das@arm.com>

        * config/aarch64/aarch64-linux.h (TARGET_ASM_FILE_END): Define for
        AArch64.
        (aarch64_file_end_indicate_exec_stack): Add gnu note section.

2019-04-23  Roman Zhuykov  <zhroma@ispras.ru>

        PR rtl-optimization/87979
        * modulo-sched.c (sms_schedule): Start ii value "mii" should
        not equal zero.

2019-04-23  Roman Zhuykov  <zhroma@ispras.ru>

        PR rtl-optimization/84032
        * modulo-sched.c (ps_insn_find_column): Change condition so that
        branch will always be the last insn in a row inside partial
        schedule.

2019-04-23  Richard Biener  <rguenther@suse.de>

        PR debug/90131
        * tree-cfgcleanup.c (move_debug_stmts_from_forwarder): Add
        dest_single_pred_p argument.
        (remove_forwarder_block): Adjust.
        (remove_forwarder_block_with_phi): Likewise.

2019-04-23  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
            Bernd Edlinger  <bernd.edlinger@hotmail.de>
            Jakub Jelinek  <jakub@redhat.com>

        PR target/89093
        * config/arm/arm.c (aapcs_vfp_is_call_or_return_candidate): Diagnose
        if used with general-regs-only.
        (arm_conditional_register_usage): Don't add non-general regs if
        general-regs-only.
        (arm_valid_target_attribute_rec): Handle general-regs-only.
        * config/arm/arm.h (TARGET_HARD_FLOAT): Return false if
        general-regs-only.
        (TARGET_HARD_FLOAT_SUB): Define.
        (TARGET_SOFT_FLOAT): Define as negation of TARGET_HARD_FLOAT_SUB.
        (TARGET_REALLY_IWMMXT): Add && !TARGET_GENERAL_REGS_ONLY.
        (TARGET_REALLY_IWMMXT2): Likewise.
        * config/arm/arm.opt: Add -mgeneral-regs-only.
        * doc/extend.texi: Document ARM general-regs-only target.
        * doc/invoke.texi: Document ARM -mgeneral-regs-only.

2019-04-23  Bin Cheng  <bin.cheng@linux.alibaba.com>

        PR tree-optimization/90078
        * tree-ssa-loop-ivopts.c (comp_cost::operator +,-,+=,-+,/=,*=): Add
        checks for infinite_cost overflow.

2019-04-23  Bin Cheng  <bin.cheng@linux.alibaba.com>

        PR tree-optimization/90021
        * tree-chrec.c (evolution_function_is_univariate_p): New parameter
        and check univariate against it.
        * tree-chrec.h (evolution_function_is_univariate_p): New parameter.
        * tree-data-ref.c (add_other_self_distances): Pass new argument.

2019-04-21  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/90178
        Revert:
        2018-11-21  Uros Bizjak  <ubizjak@gmail.com>

        Revert the revert:
        2013-10-26  Vladimir Makarov  <vmakarov@redhat.com>

        Revert:
        2013-10-25  Vladimir Makarov  <vmakarov@redhat.com>

        * lra-spills.c (lra_final_code_change): Remove useless move insns.

2019-04-21  Iain Sandoe  <iain@sandoe.co.uk>

        * config/rs6000/rs6000.md (group_end_nop): Emit insn register
        names using operand format, rather than hard-wired.
        (speculation_barrier): Likewise.

2019-04-19  Segher Boessenkool  <segher@kernel.crashing.org>

        PR tree-optimization/88055
        * tree-call-cdce.c (comparison_code_if_no_nans): New function.
        (gen_one_condition): Use it if !HONOR_NANS.

2019-04-19  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/90139
        * tree-outof-ssa.c (get_temp_reg): If reg_mode is BLKmode, return
        assign_temp instead of gen_reg_rtx.

2019-04-19  Christophe Lyon  <christophe.lyon@linaro.org>

        PR translation/90118
        * config/aarch64/aarch64.c (aarch64_override_options_internal):
        Add missing space before %<.

2019-04-18  Peter Bergner  <bergner@linux.ibm.com>

        PR rtl-optimization/87871
        * ira-lives.c (make_object_dead): Don't add conflicts to
        TOTAL_CONFLICT_HARD_REGS for register ignore_reg_for_conflicts.

2019-04-18  Martin Sebor  <msebor@redhat.com>

        PR middle-end/89797
        * tree.h (TYPE_VECTOR_SUBPARTS): Use HOST_WIDE_INT_1U.
        * config/aarch64/aarch64.c (aarch64_simd_vector_alignment): Avoid
        assuming type size fits in SHWI.

2019-04-18  Jan Hubicka  <hubicka@ucw.cz>

        PR ipa/85051
        * ipa-inline.c (flatten_function): New parameter UPDATE.
        (ipa_inline, early_inliner): Use it.

2019-04-18  Richard Sandiford  <richard.sandiford@arm.com>

        * fold-const.c (int_const_binop): Return early on failure.

2019-04-18  Richard Sandiford  <richard.sandiford@arm.com>

        PR middle-end/85164
        * combine.c (force_int_to_mode): Cast the argument rather than
        the result of known_alignment.
        * rtlanal.c (rtx_addr_can_trap_p_1): Use known_subrange_p.

2019-04-18  Richard Biener  <rguenther@suse.de>

        PR debug/90131
        * tree-cfgcleanup.c (move_debug_stmts_from_forwarder): Split
        out from ...
        (remove_forwarder_block): ... here.
        (remove_forwarder_block_with_phi): Also move debug stmts here.

2019-04-18  Jakub Jelinek  <jakub@redhat.com>

        PR translation/79183
        * gimple-ssa-sprintf.c (format_directive): Use inform_n instead of
        inform where appropriate.

2019-04-18  Richard Biener  <rguenther@suse.de>

        * tree.c (get_qualified_type): Put found type variants at the
        head of the variant list.

2018-04-17  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (rs6000_register_move_cost): Fix typo.

2019-04-17  Hongtao Liu  <hongtao.liu@intel.com>

        PR target/90125
        * config/i386/avx512fintrin.h (_mm_maskz_fmadd_round_sd,
        _mm_maskz_fmadd_round_ss, _mm_maskz_fmsub_round_sd,
        _mm_maskz_fmsub_round_ss, _mm_maskz_fnmadd_round_sd,
        _mm_maskz_fnmadd_round_ss, _mm_maskz_fnmsub_round_sd,
        _mm_maskz_fnmsub_round_ss): Use _maskz builtin instead of _mask3.

2019-04-17  Peter Bergner  <bergner@linux.ibm.com>

        * ira-conflicts.c (print_allocno_conflicts): Always print something,
        even for allocno's with no conflicts.
        (print_conflicts): Print an extra newline.

2019-04-17  Segher Boessenkool  <segher@kernel.crashing.org>

        * auto-inc-dec.c (attempt_change): Set the alignment of the
        temporary memory to that of the original.

2019-04-17  Joao Moreira  <jmoreira@suse.de>

        * targhooks.c (default_print_patchable_function_entry): Emit
        __patchable_function_entries section with writable flags to allow
        relocation resolution.

2019-04-17  Jonny Grant  <jg@jguk.org>

        * collect2.c (main): Change gcc.gnu.org URL to HTTPS.

2019-04-17  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/90095
        * internal-fn.c (expand_mul_overflow): Don't set SUBREG_PROMOTED_VAR_P
        on lowpart SUBREGs.

2019-04-17  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_init): Format diagnostic string.
        (arc_override_options): Likewise.
        (check_if_valid_regno_const): Likewise.
        (arc_reorg): Likewise.

2019-04-17  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/17108
        * config/rs6000/rs6000.c (rs6000_split_multireg_move): Adjust pattern
        name.
        (rs6000_emit_allocate_stack_1): Simplify condition.  Adjust pattern
        name.
        * config/rs6000/rs6000.md (bits): Add entries for SF and DF.
        (*movdi_update1): Use Pmode.
        (movdi_<mode>_update): Fix argument to avoiding_indexed_address_p.
        (movdi_<mode>_update_stack): Rename to ...
        (movdi_update_stack): ... this.  Fix comment.  Change condition. Don't
        use Pmode.
        (*movsi_update1): Use Pmode.
        (*movsi_update2): Use Pmode.
        (movsi_update): Rename to ...
        (movsi_<mode>_update): ... this.  Use Pmode.
        (movsi_update_stack): Fix condition.
        (*movhi_update1): Use Pmode.  Fix argument to
        avoiding_indexed_address_p.
        (*movhi_update2): Ditto.
        (*movhi_update3): Ditto.
        (*movhi_update4): Ditto.
        (*movqi_update1): Ditto.
        (*movqi_update2): Ditto.
        (*movqi_update3): Ditto.
        (*movsf_update1, *movdf_update1): Merge, rename to...
        (*mov<mode>_update1): This.  Use Pmode.  Fix argument to
        avoiding_indexed_address_p.  Add "size" attribute.
        (*movsf_update2, *movdf_update2): Merge, rename to...
        (*mov<mode>_update2): This.  Ditto.
        (*movsf_update3): Use Pmode.  Fix argument to
        avoiding_indexed_address_p.
        (*movsf_update4): Ditto.
        (allocate_stack): Simplify condition.  Adjust pattern names.

2019-04-17  Jakub Jelinek  <jakub@redhat.com>

        PR target/89093
        * config/arm/arm.c (arm_valid_target_attribute_rec): Don't skip
        whitespace at the start of target attribute string.

2019-04-16  Pat Haugen  <pthaugen@us.ibm.com>

        PR target/84369
        * config/rs6000/power9.md: Add store forwarding bypass.

2019-04-16  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/89528
        * valtrack.c (dead_debug_insert_temp): Reset debug references
        to the return value of a call being removed.

2019-04-16  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc-protos.h (arc_register_move_cost): Remove.
        * config/arc/arc.c (arc_register_move_cost): Re-purpose it to
        implement target hook.
        (arc_memory_move_cost): New function.
        (TARGET_REGISTER_MOVE_COST): Define.
        (TARGET_MEMORY_MOVE_COST): Likewise.
        * config/arc/arc.h (REGISTER_MOVE_COST): Remove.
        (MEMORY_MOVE_COST): Likewise.

2019-04-16  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.md (sibcall_insn): Use Rcd constraint.
        (sibcall_value_insn): Likewise.
        * config/arc/constraints.md (Rs5): Remove.

2019-04-16  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_hard_regno_modes): Add two missing modes
        for last two fake registers.
        (arc_conditional_register_usage): Make sure fake frame and arg
        pointer regs are in general regs class.
        (FRAME_POINTER_MASK): Remove.
        (RETURN_ADDR_MASK): Remove.
        (arc_must_save_register): Use hard frame regnum.
        (frame_restore_reg): Use hard_frame_pointer_rtx.
        (arc_save_callee_saves): Likewise.
        (arc_restore_callee_saves): Likewise.
        (arc_save_callee_enter): Likewise.
        (arc_restore_callee_leave): Likewise.
        (arc_save_callee_milli): Likewise.
        (arc_eh_return_address_location): Likewise.
        (arc_check_multi): Use hard frame regnum.
        (arc_can_eliminate): Likewise.
        * config/arc/arc.h (FIXED_REGISTERS): Make FP register available
        for register allocator.
        (REG_CLASS_CONTENTS): Update GENERAL_REGS.
        (REGNO_OK_FOR_BASE_P): Consider FRAME_POINTER_REGNUM.
        (FRAME_POINTER_REGNUM): Change it to a fake register.
        (HARD_FRAME_POINTER_REGNUM): Defined.
        (ARG_POINTER_REGNUM): Change it to a new fake register.
        (ELIMINABLE_REGS): Update.
        (REGISTER_NAMES): Update names.
        * config/arc/arc.md (LP_START): Remove.
        (LP_END): Likewise.
        (shift_si3_loop): Update pattern.

2019-04-16  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (arc_expand_prologue): Emit blockage regardless
        to avoid delay slot scheduling.
        (arc_must_save_register): Don't save SP.
        * config/arc/arc.md (stack_tie): Remove.
        (UNSPEC_ARC_STKTIE): Likewise.

2019-04-16  Kito Cheng  <kito.cheng@gmail.com>
            Shiva Chen  <shiva0217@gmail.com>

        * config/nds32/nds32-md-auxiliary.c (nds32_split_ashiftdi3): Fix wrong
        code gen with large shift amount.

2019-04-16  Chung-Ju Wu  <jasonwucj@gmail.com>

        * config/nds32/nds32-pipelines-auxiliary.c (wext_odd_dep_p): Handle
        subreg.

2019-04-16  Jakub Jelinek  <jakub@redhat.com>

        PR target/90096
        * config/i386/i386.c (ix86_target_string): Add ADD_ABI_P argument, only
        print -m64/-mx32/-m32 if it is true.
        (ix86_debug_options, ix86_function_specific_print): Pass true as
        ADD_ABI_P to ix86_target_string.
        (ix86_expand_builtin): Adjust ix86_target_string caller, pass true as
        ADD_ABI_P only if OPTION_MASK_ISA_64BIT is set in bisa and in that case
        or into it OPTION_MASK_ISA_ABI_64 or OPTION_MASK_ISA_ABI_X32.

        PR rtl-optimization/90082
        * dce.c (can_delete_call): New function.
        (deletable_insn_p, mark_insn): Use it.

        PR tree-optimization/90090
        * tree-ssa-math-opts.c (is_division_by): Ignore divisions that can
        throw internally.
        (is_division_by_square): Likewise.  Formatting fix.

2019-04-16  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/56049
        * tree-ssa-loop-im.c (mem_ref_hasher::equal): Elide alias-set
        equality check if alias-set zero will prevail.

2019-04-15  Jeff Law  <law@redhat.com>

        * config/microblaze/microblaze.c (microblaze_expand_block_move): Treat
        size and alignment as unsigned.

2019-04-15  Richard Biener  <rguenther@suse.de>

        PR debug/90074
        * tree-loop-distribution.c (destroy_loop): Preserve correct
        debug info.

2019-04-15  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90071
        * tree-ssa-reassoc.c (init_range_entry): Do not pick up
        abnormal operands from def stmts.

2019-04-15  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/89794
        * combine.c (count_auto_inc): New function.
        (try_combine): Count how many auto_inc expressions there were in the
        original instructions.  Ensure we have the same number in the new
        instructions.  Remove the code that tried to ensure auto_inc side
        effects on i1 and i0 are not lost.

2019-04-15  Richard Biener  <rguenther@suse.de>

        PR ipa/88936
        * tree.h (auto_var_p): Declare.
        * tree.c (auto_var_p): New function, split out from ...
        (auto_var_in_fn_p): ... here.
        * tree-ssa-structalias.c (struct variable_info): Add shadow_var_uid
        member.
        (new_var_info): Initialize it.
        (set_uids_in_ptset): Also set the shadow variable uid if required.
        (ipa_pta_execute): Postprocess points-to solutions assigning
        shadow variable uids for locals that may reach their containing
        function recursively.
        * tree-ssa-ccp.c (fold_builtin_alloca_with_align): Do not
        assert but instead check whether the points-to solution is
        a singleton.

2019-04-15  Martin Jambor  <mjambor@suse.cz>

        PR ipa/pr89693
        * cgraph.c (clone_of_p): Loop over clone chain for each step in
        the thunk chain.

2019-04-15  Monk Chiang  <sh.chiang04@gmail.com>

        * config.gcc (nds32*-*-linux*): Set gcc_cv_initfini_array to yes.

2019-04-15  Monk Chiang  <sh.chiang04@gmail.com>
            Kito Cheng  <kito.cheng@gmail.com>
            Shiva Chen  <shiva0217@gmail.com>

        * config/nds32/nds32-md-auxiliary.c
        (nds32_legitimize_pic_address): Use new PIC pattern.
        (nds32_legitimize_tls_address): Use new TLS pattern.
        (nds32_output_symrel): New.
        * config/nds32/nds32-protos.h (nds32_output_symrel): Declare.
        (nds32_alloc_relax_group_id): Ditto.
        * config/nds32/nds32-relax-opt.c (nds32_alloc_relax_group_id): New.
        (nds32_group_insns): Use nds32_alloc_relax_group_id instead of use
        relax_group_id.
        (nds32_group_tls_insn): Ditto.
        (nds32_group_float_insns): Ditto.
        * config/nds32/nds32.md (tls_le): New.
        (sym_got): Ditto.

2019-04-15  Chung-Ju Wu  <jasonwucj@gmail.com>

        * configure: Add nds32 target for dwarf2 debug_line checking.
        * configure.ac: Regenerated.

2019-04-14  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/89358
        * ipa-devirt.c (skip_in_fields_list_p): New.
        (odr_types_equivalent_p): Use it.

2019-04-13  Jakub Jelinek  <jakub@redhat.com>

        PR target/89093
        * config/arm/arm.c (arm_valid_target_attribute_rec): Use strcmp
        instead of strncmp when checking for thumb and arm.  Formatting fixes.

2019-04-12  Iain Buclaw  <ibuclaw@gdcproject.org>

        * doc/install.texi: Document --with-target-system-zlib.

2019-04-12  Martin Sebor  <msebor@redhat.com>

        PR c/88383
        PR c/89288
        PR c/89798
        PR c/89797
        * targhooks.c (default_vector_alignment): Avoid assuming
        argument fits in SHWI.
        * tree.h (TYPE_VECTOR_SUBPARTS): Avoid sign overflow in
        a shift expression.
        * doc/extend.texi (__builtin_has_attribute): Add a clarifying note.

2019-04-12  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/89965
        * dce.c: Include rtl-iter.h.
        (struct check_argument_load_data): New type.
        (check_argument_load): New function.
        (find_call_stack_args): Check for loads from stack slots still tracked
        in sp_bytes and punt if any is found.

        * config/mips/loongson-mmiintrin.h: Fix up #error message.

2019-04-12  Jan Hubicka  <hubicka@ucw.cz>

        * params.def (PARAM_MAX_LTO_STREAMING_PARALLELISM): New parameter.
        * doc/invoke.texi (max-lto-streaming-paralellism): New --param.

2019-04-12  Martin Liska  <mliska@suse.cz>

        PR middle-end/89970
        * multiple_target.c (create_dispatcher_calls): Wrap ifunc
        in error message.
        (separate_attrs): Handle multiple 'default's.
        (expand_target_clones): Rework error handling code.

2019-04-12  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        PR target/87532
        * config/rs6000/rs6000.c (rs6000_split_vec_extract_var): Use inner
        mode of vector rather than mode of destination for move instruction.
        * config/rs6000/vsx.md (*vsx_extract_<mode>_<VS_scalar>mode_var):
        Use QI inner mode with V16QI vector mode.

2019-04-12  Jakub Jelinek  <jakub@redhat.com>

        PR target/52726
        * config/tilepro/tilepro.c (tilepro_print_operand): Use just
        "invalid %%t operand" in output_operand_lossage message.

2019-04-12  Andreas Krebbel  <krebbel@linux.ibm.com>

        * config/s390/predicates.md (permute_pattern_operand): New
        predicate.
        * config/s390/vector.md ("*vec_splats_bswap_vec<mode>"): Add USE
        operand for the permute pattern.
        ("*vec_perm<mode>"): New insn definition.
        ("bswap<mode>"): Generate the permute pattern operand in the
        expander and perform the operand reloads for pre arch13 level
        already.
        ("*bswap<mode>_emu"): Rename to ...
        ("*bswap<mode>"): ... this. And make the splitter vxe2 only.
        * config/s390/vx-builtins.md ("*vec_insert_and_zero_bswap<mode>"):
        Add the USE operand for the permute pattern.
        ("*vec_set_bswap_vec<mode>"): Likewise.

2019-04-12  Jakub Jelinek  <jakub@redhat.com>

        PR c/89946
        * varasm.c (assemble_start_function): Don't use tree_fits_uhwi_p
        and gcc_unreachable if it fails, just call tree_to_uhwi which
        verifies that too.  Test TREE_CHAIN instead of list_length > 1.
        Start warning message with a lower-case letter.  Formatting fixes.

        PR rtl-optimization/90026
        * cfgcleanup.c (try_optimize_cfg): When removing empty bb with no
        successors, look for BARRIERs inside of the whole BB_FOOTER chain
        rather than just at the start of it.  If e->src BB_FOOTER is not NULL
        in cfglayout mode, use emit_barrier_after_bb.

2018-04-11  Steve Ellcey  <sellcey@marvell.com>

        PR rtl-optimization/87763
        * config/aarch64/aarch64.md (*aarch64_bfi<GPI:mode>4_noshift_alt):
        New Instruction.

2019-04-11  Tom de Vries  <tdevries@suse.de>

        * doc/extend.texi (@node Statement Exprs): Note variable shadowing at
        max macro using statement expression.

2019-04-11  David Edelsohn  <dje.gcc@gmail.com>

        * xcoffout.h (xcoff_private_rodata_section_name): Declare.
        * xcoffout.c (xcoff_private_rodata_section_name): Define.
        * config/rs6000/rs6000.c (rs6000_xcoff_asm_init_sections): Create
        read_only_private_data_section using xcoff_private_rodata_section_name.
        (rs6000_xcoff_file_start): Generate xcoff_private_rodata_section_name.

2019-04-11  Christophe Lyon  <christophe.lyon@linaro.org>

        PR target/90016
        * config/aarch64/aarch64.opt (msve-vector-bits): Add missing final '.'.

2019-04-11  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/89965
        * dce.c (sp_based_mem_offset): New function.
        (find_call_stack_args): Use sp_based_mem_offset.

2019-04-11  Jonathan Wakely  <jwakely@redhat.com>

        * doc/invoke.texi (Optimize Options): Clarify -flive-patching docs.

2019-04-11  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90020
        * tree-ssa-sccvn.c (vn_reference_may_trap): New function.
        * tree-ssa-sccvn.h (vn_reference_may_trap): Declare.
        * tree-ssa-pre.c (compute_avail): Use it to not put
        possibly trapping references after a call that might not
        return into EXP_GEN.
        * gcse.c (compute_hash_table_work): Do not elide
        marking a block containing a call if the call might not
        return.

2019-04-11  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90018
        * tree-vect-data-refs.c (vect_preserves_scalar_order_p):
        Test both SLP and interleaving variants.

2019-04-11  Robin Dapp  <rdapp@linux.ibm.com>

        * config/s390/8561.md: New file.
        * config/s390/driver-native.c (s390_host_detect_local_cpu):
        Add arch13 cpu model.
        * config/s390/s390-opts.h (enum processor_type): Likewise.
        * config/s390/s390.c (s390_get_sched_attrmask): Add arch13.
        (s390_get_unit_mask): Likewise.
        (s390_is_fpd): Likewise.
        (s390_is_fxd): Likewise.
        * config/s390/s390.h (s390_tune_attr): Likewise.
        * config/s390/s390.md: Include arch13 pipeline description.
        * config/s390/s390.opt: Add arch13.

2018-04-10  Steve Ellcey  <sellcey@marvell.com>

        PR rtl-optimization/87763
        * config/aarch64/aarch64-protos.h (aarch64_masks_and_shift_for_bfi_p):
        New prototype.
        * config/aarch64/aarch64.c (aarch64_masks_and_shift_for_bfi_p):
        New function.
        * config/aarch64/aarch64.md (*aarch64_bfi<GPI:mode>5_shift):
        New instruction.
        (*aarch64_bfi<GPI:mode>5_shift_alt): Ditto.
        (*aarch64_bfi<GPI:mode>4_noand): Ditto.
        (*aarch64_bfi<GPI:mode>4_noand_alt): Ditto.
        (*aarch64_bfi<GPI:mode>4_noshift): Ditto.

2019-04-10  Jonathan Wakely  <jwakely@redhat.com>

        * doc/invoke.texi (Optimize Options): Change "Nevertheless" to
        "Although" in -fipa-icf documentation.

        * doc/invoke.texi (Debugging Options): Explicitly state the semantics
        of using multiple -g options.

2019-04-10  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/89959
        * doc/gcov.texi: Make documentation of -x option
        more precise.

2019-04-10  Richard Biener  <rguenther@suse.de>

        * tree-vectorizer.h (_stmt_vec_info): Remove same_dr_stmt
        member.
        (DR_GROUP_SAME_DR_STMT): Remove.
        * tree-vect-stmts.c (vectorizable_load): Remove unreachable code.
        * tree-vect-data-refs.c (vect_analyze_group_access_1): Likewise,
        replace with assert.
        (vect_analyze_data_ref_accesses): Fix INTEGER_CST comparison.
        (vect_record_grouped_load_vectors): Remove unreachable code.

2019-04-10  Richard Earnshaw  <rearnsha@arm.com>

        PR target/90016
        * config/aarch64/aarch64.opt (msve-vector-bits): Remove redundant and
        obsolete reference to N.

2019-04-10  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/90025
        * expr.c (store_expr): Set properly size on the MEM passed to
        clear_storage.

        PR c++/90010
        * gimple-ssa-sprintf.c (target_to_host): Fix handling of targstr
        with strlen in between hostsz-3 and hostsz-1 inclusive when no
        translation is needed, and when translation is needed, only append
        ... if the string length is hostsz or more bytes long.  Avoid using
        strncpy or strcat.

2019-04-09  Matthew Malcomson  <matthew.malcomson@arm.com>

        PR target/90024
        * config/arm/arm.c (neon_valid_immediate): Disallow VOIDmode parameter.
        * config/arm/constraints.md (Dm, DN, Dn): Split previous Dn constraint
        into three.
        * config/arm/neon.md (*neon_mov<mode>): Account for TImode and DImode
        differences directly.
        (*smax<mode>3_neon, vashl<mode>3, vashr<mode>3_imm): Use Dm constraint.

2019-04-09  Jakub Jelinek  <jakub@redhat.com>

        PR translation/90011
        * ipa-devirt.c (compare_virtual_tables): Remove two trailing spaces
        from diagnostics.
        * config/arm/freebsd.h (LINK_SPEC): Remove trailing space from -p
        diagnostics.
        * config/riscv/freebsd.h (LINK_SPEC): Likewise.
        * config/aarch64/aarch64-freebsd.h (FBSD_TARGET_LINK_SPEC): Likewise.
        * config/darwin.h (DRIVER_SELF_SPECS, ASM_FINAL_SPEC): Remove
        trailing space from -gsplit-dwarf diagnostics.

        PR tree-optimization/89998
        * gimple-ssa-sprintf.c (try_substitute_return_value): Use lhs type
        instead of integer_type_node if possible, don't add ranges if return
        type is not compatible with int.
        * gimple-fold.c (gimple_fold_builtin_sprintf,
        gimple_fold_builtin_snprintf): Use lhs type instead of hardcoded
        integer_type_node.

2019-04-09  Martin Liska  <mliska@suse.cz>

        * Makefile.in: Use GENERATOR_CFLAGS for all generators.
        * doc/install.texi: Document the new config.

2019-04-09  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-vect-data-refs.c (vect_get_smallest_scalar_type): Always
        use gimple_expr_type for load and store calls.  Skip over the
        condition argument in a conditional internal function.
        Protect use of TREE_INT_CST_LOW.

2019-04-09  Jakub Jelinek  <jakub@redhat.com>

        PR target/90015
        * config/riscv/riscv.c (riscv_get_interrupt_type): Fix comment typo.
        (riscv_merge_decl_attributes): Fix typo in diagnostics.  Remove
        trailing period from it too.

2019-04-08  wu yuan  <wuyuan5@huawei.com>

        * config/aarch64/aarch64-cores.def (tsv1100): Change scheduling model.
        * config/aarch64/aarch64.md : Add "tsv110.md"
        * config/aarch64/tsv110.md: New file.

2019-04-08  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/90006
        * tree-vect-data-refs.c (vect_get_smallest_scalar_type): Handle
        calls like lrint.

2019-04-08  Andrea Corallo  <andrea.corallo@arm.com>

        PR target/83033
        * config/aarch64/cortex-a57-fma-steering.c (fma_forest): Prohibit copy
        construction.
        (fma_root_node): Likewise.
        (func_fma_steering): Likewise.

2019-04-08  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/89865
        * config/i386/i386.md: Add peepholes for z = x; x ^= y; x != z.

        PR rtl-optimization/89865
        * config/i386/i386.md
        (SWI12 peephole for mem {+,-,&,|,^}= x; mem != 0): Fix up operand
        numbers not to clash with the additional operands[4].
        (peepholes for mem {+,-,&,|,^}= x; mem != 0): New peephole2s
        with extra register copy in the middle.

2019-04-08  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/89961
        * doc/gcov.texi: Document data_file.
        * gcov.c (generate_results): Add data_info into JSON output.

2019-04-01  Bin Cheng  <bin.cheng@linux.alibaba.com>

        PR tree-optimization/89725
        * tree-chrec.c (chrec_contains_symbols): New parameter.  Handle outer
        loop's chrec as invariant symbol.
        * tree-chrec.h (chrec_contains_symbols): New parameter.
        * tree-data-ref.c (analyze_miv_subscript): Pass new argument.
        (build_classic_dist_vector_1, add_other_self_distances): Bypass access
        function of loops not in DDR's loop_nest.
        * tree-data-ref.h (index_in_loop_nest): Add unreachable check.

2019-04-08  Chenghua Xu  <paul.hua.gm@gmail.com>

        PR target/89623
        * config/mips/mips.opt (LOONGSON_EXT2): Use Var instead of
        Mask.

2019-04-07  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/89945
        * config/i386/i386.md (anddi_1 to andsi_1_zext splitter):
        Avoid calling gen_lowpart with SYMBOL_REF and LABEL_REF operand.

2019-04-05  Joern Rennecke  <joern.rennecke@embecosm.com>

        * sched-deps.c (sched_macro_fuse_insns): Check return value of
        targetm.fixed_condition_code_regs.

2019-04-05  Richard Biener  <rguenther@suse.de>

        PR debug/89892
        PR debug/89905
        * tree-cfgcleanup.c (remove_forwarder_block): Always move
        debug bind stmts but reset them if they are not valid at the
        destination.

2019-04-05  Martin Liska  <mliska@suse.cz>

        PR translation/89936
        * collect-utils.c (collect_execute): Use %< and %>, or %qs in
        order to wrap keywords or arguments.
        * collect2.c (main): Likewise.
        (scan_prog_file): Likewise.
        (scan_libraries): Likewise.
        * common/config/riscv/riscv-common.c
        (riscv_subset_list::parsing_subset_version): Likewise.
        (riscv_subset_list::parse_std_ext): Likewise.
        * config/aarch64/aarch64.c (aarch64_override_options_internal):
        Likewise.
        * config/arm/arm.c (arm_option_override): Likewise.
        * config/cris/cris.c (cris_print_operand): Likewise.
        * config/darwin-c.c (darwin_pragma_options): Likewise.
        (darwin_pragma_unused): Likewise.
        (darwin_pragma_ms_struct): Likewise.
        * config/ft32/ft32.c (ft32_print_operand): Likewise.
        * config/i386/i386.c (print_reg): Likewise.
        (ix86_print_operand): Likewise.
        * config/i386/xm-djgpp.h: Likewise.
        * config/iq2000/iq2000.c (iq2000_print_operand): Likewise.
        * config/m32c/m32c.c (m32c_option_override): Likewise.
        * config/msp430/msp430.c (msp430_option_override): Likewise.
        * config/nds32/nds32.c (nds32_option_override): Likewise.
        * config/nvptx/mkoffload.c (main): Likewise.
        * config/rx/rx.c (rx_print_operand): Likewise.
        (valid_psw_flag): Likewise.
        * config/vms/vms-c.c (vms_pragma_member_alignment): Likewise.
        (vms_pragma_nomember_alignment): Likewise.
        (vms_pragma_extern_model): Likewise.
        * lto-wrapper.c (compile_offload_image): Likewise.
        * omp-offload.c (oacc_parse_default_dims): Likewise.
        * symtab.c (symtab_node::verify_base): Likewise.
        * tlink.c (recompile_files): Likewise.
        (start_tweaking): Likewise.
        * tree-profile.c (parse_profile_filter): Likewise.

2019-04-05  Richard Sandiford  <richard.sandiford@arm.com>

        PR tree-optimization/89956
        * tree-ssa-math-opts.c (convert_mult_to_fma): Protect against
        multiple negates of the same value.

2019-04-04  Martin Sebor  <msebor@redhat.com>

        PR middle-end/89957
        PR middle-end/89911
        * builtins.c (expand_builtin_strnlen): Make sure wi::ltu_p operands
        have the same precision since the function crashes otherwise.
        * calls.c (maybe_warn_nonstring_arg): Avoid assuming strnlen() call
        has non-zero arguments.

2019-04-04  Martin Sebor  <msebor@redhat.com>

        PR middle-end/89934
        * gimple-ssa-warn-restrict.c (builtin_access::builtin_access): Bail
        out if the number of arguments is less than expected.

2019-04-04  Jeff Law  <law@redhat.com>

        PR rtl-optimization/89399
        * ree.c (combine_set_extension): Use single_set rather than
        digging into PATTERN for items on the candidate list.
        (combine_reaching_defs): Likewise.

2019-04-04  Richard Sandiford  <richard.sandiford@arm.com>

        PR rtl-optimization/46590
        * loop-invariant.c (find_defs): Move df_remove_problem and
        df_process_deferred_rescans to move_invariants.
        Move df_live_add_problem and df_live_set_all_dirty calls
        to move_invariants.
        (move_invariants): Likewise.
        (move_loop_invariants): Likewise, making the df_live calls
        conditional on -O.  Remove the problem again if we added it
        locally.

2019-04-03  qing zhao  <qing.zhao@oracle.com>

        PR tree-optimization/89730
        * ipa-inline.c (can_inline_edge_p): Delete the checking for
        -flive-patching=inline-only-static.
        (can_inline_edge_by_limits_p): Add the checking for
        -flive-patching=inline-only-static and grant always_inline
        even when -flive-patching=inline-only-static is specified.

2019-04-03  Jeff Law  <law@redhat.com>

        PR rtl-optimization/81025
        * reorg.c (skip_consecutive_labels): Do not skip past a BARRIER.

2019-04-03  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/84101
        * tree-vect-stmts.c: Include explow.h for hard_function_value,
        regs.h for hard_regno_nregs.
        (cfun_returns): New helper.
        (vect_model_store_cost): When vectorizing a store to a decl
        we return and the function ABI returns in a multi-reg location
        account for the possible spilling that will happen.

2019-04-03  Andreas Krebbel  <krebbel@linux.ibm.com>

        * config/s390/s390.c (s390_legitimate_address_p): Reject long
        displacement addresses for vector mode operands.

2019-04-03  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (GMASK_LEN): Define.
        (arc_restore_callee_saves): Restore first blink when
        !optimize_size.

2019-04-03  Sudakshina Das  <sudi.das@arm.com>

        * doc/extend.texi: Add deprecated comment on sign-return-address
        function attribute and add mbranch-protection.
        * doc/invoke.texi: Add bti to the options for mbranch-protection.

2019-04-03  Richard Biener  <rguenther@suse.de>

        PR lto/89896
        * lto-wrapper.c (run_gcc): Avoid implicit rules making
        the all target phony.

2019-04-02  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/89902
        PR target/89903
        * config/i386/i386.c (dimode_scalar_to_vector_candidate_p):
        Return false for variable DImode shifts.
        (dimode_scalar_chain::compute_convert_gain): Do not handle
        register count operand in variable DImode shifts.
        (dimode_scalar_chain::make_vector_copies): Remove support to copy
        count argument of a variable shift instruction to a vector register.
        (dimode_scalar_chain::convert_reg): Remove support to convert
        count argument of a variable shift instruction.

2019-04-02  Andrey Belevantsev  <abel@ispras.ru>

        PR rtl-optimization/84206
        * sel-sched-ir.h (get_all_loop_exits): Avoid the outer loop when
        iterating over loop headers.

2019-04-02  Andrey Belevantsev  <abel@ispras.ru>

        PR rtl-optimization/85876
        * sel-sched.c (code_motion_path_driver): Avoid unwinding first_insn
        beyond the original fence.

2019-04-02  Ulrich Weigand  <uweigand@de.ibm.com>

        * config.gcc: Mark spu* targets as deprecated/obsolete.

2019-04-02  Andreas Krebbel  <krebbel@linux.ibm.com>

        * config/s390/s390-builtin-types.def: New builtin function type
        definitions. Remove unused types.
        * config/s390/s390-builtins.def (s390_vcdgb, s390_vcdlgb)
        (s390_vcgdb, s390_vclgdb): Remove low-level builtin definitions.
        (s390_vec_float, s390_vec_signed, s390_vec_unsigned): New
        overloaded builtins.
        (s390_vcefb, s390_vcdgb, s390_vcelfb, s390_vcdlgb, s390_vcfeb)
        (s390_vcgdb, s390_vclfeb, s390_vclgdb): New low-level builtins.
        * config/s390/vecintrin.h (vec_float): New builtin macro definition.
        (vec_double, vec_signed, vec_unsigned): Define to use the new
        overloaded builtins.
        * config/s390/vx-builtins.md ("vec_double_s64", "vec_double_u64"):
        Remove expanders.

2019-04-02  Andreas Krebbel  <krebbel@linux.ibm.com>

        * config/s390/s390-builtin-types.def: New builtin function type
        definitions.
        * config/s390/s390-builtins.def (s390_vec_search_string_cc)
        (s390_vec_search_string_until_zero_cc): New overloaded builtins.
        (s390_vstrsb, s390_vstrsh, s390_vstrsf, s390_vstrszb)
        (s390_vstrszh, s390_vstrszf): New low-level builtins.
        * config/s390/s390.md (UNSPEC_VEC_VSTRS, UNSPEC_VEC_VSTRSCC): New
        constant definitions.
        * config/s390/vecintrin.h (vec_search_string_cc)
        (vec_search_string_until_zero_cc): New builtin name definitions.
        * config/s390/vx-builtins.md ("vstrs<mode>", "vstrsz<mode>"): New
        expanders.
        ("vec_vstrs<mode>"): New insn definition.

2019-04-02  Andreas Krebbel  <krebbel@linux.ibm.com>

        * config/s390/s390-builtin-types.def: Add new builtin function
        types.
        * config/s390/s390-builtins.def (s390_vec_sldb, s390_vec_srdb):
        New overloaded builtins.
        (s390_vec_sldb, s390_vec_srdb): New low-level builtins.  and
        s390_vsrd.
        * config/s390/s390.md (UNSPEC_VEC_SLDB): Rename to ...
        (UNSPEC_VEC_SLDBYTE): ... this.
        (UNSPEC_VEC_SLDBIT, UNSPEC_VEC_SRDBIT): New constant definitions.
        * config/s390/vecintrin.h (vec_sldb, vec_srdb): New builtin name
        definitions.
        * config/s390/vx-builtins.md ("vec_sld<mode>", "vec_sldw<mode>"):
        Rename UNSPEC_VEC_SLDB to UNSPEC_VEC_SLDBYTE.
        ("vec_sldb<mode>", "vec_srdb<mode>"): New insn definitions.

2019-04-02  Andreas Krebbel  <krebbel@linux.ibm.com>

        ("*vec_splats_bswap_vec<mode>", "*vec_splats_bswap_elem<mode>"):
        New insn definition.
        * config/s390/vx-builtins.md (V_HW_HSD): Move to ...
        * config/s390/vector.md (V_HW_HSD): ... here.

2019-04-02  Andreas Krebbel  <krebbel@linux.ibm.com>

        * config/s390/vecintrin.h: Map vec_vster low-level builtins to vec_vler.
        * config/s390/vx-builtins.md ("*vec_insert_and_zero_bswap<mode>")
        ("*vec_set_bswap_elem<mode>", "*vec_set_bswap_vec<mode>")
        ("*vec_extract_bswap_vec<mode>", "*vec_extract_bswap_elem<mode>"):
        New insn definitions.

2019-04-02  Andreas Krebbel  <krebbel@linux.ibm.com>

        * config/s390/s390-builtin-types.def: Add new builtin function type.
        * config/s390/s390-builtins.def: Add overloaded builtin
        s390_vec_reve and low-level builtins for s390_vler and s390_vster.
        * config/s390/s390.md (UNSPEC_VEC_ELTSWAP): New constant definition.
        * config/s390/vecintrin.h (vec_reve): New builtin name definition.
        * config/s390/vx-builtins.md (V_HW_HSD): New mode iterator.
        ("eltswap<mode>"): New expander.
        ("*eltswapv16qi", "*eltswap<mode>", "*eltswap<mode>_emu"): New
        insn definitions.

2019-04-02  Andreas Krebbel  <krebbel@linux.ibm.com>

        * config/s390/s390-builtin-types.def: Add new builtin function types.
        * config/s390/s390-builtins.def: Add overloaded builtin
        s390_vec_revb. Add low-level builtins for vlbr and vstbr
        instructions.
        * config/s390/vecintrin.h (vec_revb): New builtin name definition.
        * config/s390/vector.md (VT_HW_HSDT): New mode iterator.
        ("bswap<mode>"): New expander.
        ("*bswap<mode>", "*bswap<mode>_emu"): New insn definitions.

2019-04-02  Andreas Krebbel  <krebbel@linux.ibm.com>

        * config/s390/s390-builtins.def (B_VXE2): New builtin flag definition.
        * config/s390/s390-c.c (s390_cpu_cpp_builtins_internal): Increment
        vector builtin version number in __VEC__.

2019-04-02  Andreas Krebbel  <krebbel@linux.ibm.com>

        * config/s390/s390.md (VX_CONV_BFP, VX_CONV_INT): New mode
        iterators.
        (SFSI): New mode attribute.
        ("*fixuns_truncdfdi2_vx", "*fix_truncdfdi2_bfp_z13")
        ("*floatunsdidf2_z13", ): Add support for 32 bit conversions and
        rename to ...
        ("*fixuns_trunc<VX_CONV_BFP:mode><VX_CONV_INT:mode>2_z13")
        ("*fix_trunc<VX_CONV_BFP:mode><VX_CONV_INT:mode>2_bfp_z13")
        ("*floatuns<VX_CONV_INT:mode><VX_CONV_BFP:mode>2_z13"): ... these.
        ("floatsi<mode>2"): Add wcefb instruction.

2019-04-02  Andreas Krebbel  <krebbel@linux.ibm.com>

        * config/s390/s390.md ("xde"): Extend mode attribute to vector types.
        * config/s390/vector.md (VX_VEC_CONV_BFP, VX_VEC_CONV_INT): New
        mode iterators.
        ("floatv2div2df2", "floatunsv2div2df2", "fix_truncv2dfv2di2")
        ("fixuns_truncv2dfv2di2"): Enhance with mode iterator to also
        support 32 bit fp-int conversions. Rename to ...
        ("float<VX_VEC_CONV_INT:mode><VX_VEC_CONV_BFP:mode>2")
        ("floatuns<VX_VEC_CONV_INT:mode><VX_VEC_CONV_BFP:mode>2")
        ("fix_trunc<VX_VEC_CONV_BFP:mode><VX_VEC_CONV_INT:mode>2")
        ("fixuns_trunc<VX_VEC_CONV_BFP:mode><VX_VEC_CONV_INT:mode>2"):
        ... to these.

2019-04-02  Andreas Krebbel  <krebbel@linux.ibm.com>

        * config/s390/s390.c (s390_rtx_costs): Do not add extra costs for
        if-then-else constructs if we can use the select instruction.
        * config/s390/s390.md ("*mov<mode>cc"): Add the new instructions.

2019-04-02  Andreas Krebbel  <krebbel@linux.ibm.com>

        * config/s390/s390.md ("*popcountdi_arch13_cc")
        ("*popcountdi_arch13_cconly", "*popcountdi_arch13"): New insn
        definition.
        ("*popcount<mode>", "popcountdi2", "popcountsi2", "popcounthi2"):
        Append _z196 to make it ...
        ("*popcount<mode>_z196", "popcountdi2_z196", "popcountsi2_z196")
        ("popcounthi2_z196"): ... this.
        ("popcountdi2_z196"): Remove TARGET_64BIT from the insn condition.
        ("popcountdi2", "popcountsi2", "popcounthi2"): New expanders.

2019-04-02  Andreas Krebbel  <krebbel@linux.ibm.com>

        * config/s390/s390.c (s390_canonicalize_comparison): Convert
        certain compares for arch13 in order to make use of the condition
        code result produced by the new instructions.
        (s390_rtx_costs): Adjust the costs for nnrk, nngrk, nork, nogrk,
        nxrk, and nxgrk instruction patterns.
        * config/s390/s390.md (ANDOR, bitops_name, inv_bitops_name)
        (inv_no): Add new code iterator together with some attributes.
        ("*andc_split_<mode>"): Disable splitter for arch13.
        ("*<ANDOR:bitops_name>c<GPR:mode>_cc")
        ("*<ANDOR:bitops_name>c<GPR:mode>_cconly")
        ("*<ANDOR:bitops_name>c<GPR:mode>")
        ("*n<ANDOR:inv_bitops_name><GPR:mode>_cc")
        ("*n<ANDOR:inv_bitops_name><mode>_cconly")
        ("*n<ANDOR:inv_bitops_name><mode>", "*nxor<GPR:mode>_cc")
        ("*nxor<mode>_cconly", "*nxor<mode>"): New insn definitions.

2019-04-02  Andreas Krebbel  <krebbel@linux.ibm.com>

        * common/config/s390/s390-common.c (processor_flags_table): New
        entry for arch13.
        * config.gcc: Support arch13 with the --with-arch= configure flag.
        * config/s390/driver-native.c (s390_host_detect_local_cpu):
        * config/s390/s390-opts.h (enum processor_type): Add PROCESSOR_ARCH13.
        * config/s390/s390.c (s390_get_sched_attrmask)
        (s390_get_unit_mask): Add PROCESSOR_ARCH13.
        * config/s390/s390.h (enum processor_flags): Add PF_VXE2 and PF_ARCH13.
        * config/s390/s390.md (TARGET_CPU_ARCH13, TARGET_CPU_ARCH13_P)
        (TARGET_CPU_VXE2, TARGET_CPU_VXE2_P, TARGET_ARCH13)
        (TARGET_ARCH13_P, TARGET_VXE2, TARGET_VXE2_P): New macro
        definitions.
        * config/s390/s390.opt: Support arch13 as processor type in
        command line options.

2019-04-02  Martin Liska  <mliska@suse.cz>

        PR translation/89912
        * params.def (PARAM_GRAPHITE_MAX_ARRAYS_PER_SCOP):
        Fix param description of graphite-max-arrays-per-scop.

2019-04-02  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/linux64.h (ASAN_REJECT_SPEC): New macro.
        (ASAN_CC1_SPEC): Use it in 64-bit mode.
        * config/sparc/sol2.h (ASAN_REJECT_SPEC): Remove superfluous colon.

2019-04-01  Andrey Belevantsev  <abel@ispras.ru>

        PR rtl-optimization/85412
        * sel-sched.c (sel_sched_region): Assign reset_sched_cycles_p before
        sel_sched_region_1, not after.

2019-04-01  Andrey Belevantsev  <abel@ispras.ru>

        PR rtl-optimization/86928
        * sel-sched-ir.c (sel_redirect_edge_and_branch_force): Invoke
        compute_live if necessary.
        (sel_redirect_edge_and_branch): Likewise.

2019-04-01  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/89865
        * ira-costs.c (process_bb_node_for_hard_reg_moves): Skip hard
        register if it is a part of small class.

2019-04-01  Andrey Belevantsev  <abel@ispras.ru>

        PR rtl-optimization/87273
        * sel-sched-ir.c (merge_fences): Remove assert.

2019-04-01  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/46590
        * domwalk.h (dom_walker::dom_walker): Consolidate constructors.
        (dom_walker::m_reachability): Add in place of...
        (dom_walker::m_skip_unreachable_blocks): ...this.
        * domwalk.c (dom_walker::dom_walker): Consoliate constructors.
        Move complex initialization ...
        (dom_walker::walk): Here.  Especially compute m_bb_to_rpo
        lazily and initialize edge flags on each invocation.
        (dom_walker::bb_reachable): Use m_reachability.

2019-04-01  Martin Liska  <mliska@suse.cz>

        PR driver/89861
        * opt-suggestions.c (option_proposer::build_option_suggestions):
        Add variant without any argument in order to provide better
        hints.

2019-04-01  Richard Biener  <rguenther@suse.de>

        PR c/71598
        * gimple.c: Include langhooks.h.
        (gimple_get_alias_set): Treat enumeral types as the underlying
        integer type.

2019-03-29  Kugan Vivekanandarajah  <kuganv@linaro.org>
            Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/89862
        * rtl.h (word_register_operation_p): Exclude CONST_INT from operations
        that operates on the full registers for WORD_REGISTER_OPERATIONS
        architectures.

2019-03-29  Jim Wilson  <jimw@sifive.com>

        * common/config/riscv/riscv-common.c (riscv_parse_arch_string):
        Clear MASK_RVC and then set if C subset supported.

2019-03-29  Jakub Jelinek  <jakub@redhat.com>

        PR c/89872
        * gimplify.c (gimplify_compound_literal_expr): Don't optimize a
        non-addressable complit into its initializer if it is volatile.

2019-03-29  Roman Zhuykov  <zhroma@ispras.ru>

        * opts-common.c (integral_argument): Set errno properly in one case.

2019-03-29  Martin Liska  <mliska@suse.cz>

        * doc/invoke.texi: Remove -Wchkp from documentation.

2019-03-29  Martin Liska  <mliska@suse.cz>

        * dbgcnt.c (print_limit_reach): New function.
        (dbg_cnt): Use it.

2019-03-29  Martin Liska  <mliska@suse.cz>

        * dbgcnt.c (dbg_cnt_process_single_pair): Fix GNU coding style.
        (dbg_cnt_process_opt): Parse first tokens aas
        dbg_cnt_process_single_pair is also using strtok.

2019-03-29  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/87485
        * function.c (expand_function_end): Move stack_protect_epilogue
        before loading of return value into hard register(s).

2019-03-28  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/89621
        * tree-inline.h (struct copy_body_data): Add
        dont_remap_vla_if_no_change flag.
        * tree-inline.c (remap_type_3, remap_type_2): New functions.
        (remap_type): Don't remap vla types if id->dont_remap_vla_if_no_change
        and remap_type_2 returns false.
        * omp-low.c (new_omp_context): Set ctx->cb.dont_remap_vla_if_no_change.
        Move ctx->cb.adjust_array_error_bounds setting to the outermost ctx
        only from where it is copied to nested contexts.

2019-03-28  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/89865
        * config/i386/i386.md (RMW operation with LEA peephole):
        Use LEAMODE mode attribute instead of SWI mode iterator for
        LEA pattern.

2019-03-28  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/89848
        * config/i386/i386.c (dimode_scalar_chain::make_vector_copies):
        Also process XEXP (src, 0) of a shift insn.

2019-03-28  David Malcolm  <dmalcolm@redhat.com>

        PR middle-end/89725
        * optinfo-emit-json.cc (optrecord_json_writer::optinfo_to_json):
        Use DECL_ASSEMBLER_NAME rather than get_fnname_from_decl.

2019-03-28  Jakub Jelinek  <jakub@redhat.com>

        * regcprop.c (copyprop_hardreg_forward_1): Remove redundant INSN_P
        test.
        (cprop_hardreg_bb, cprop_hardreg_debug): New functions.
        (pass_cprop_hardreg::execute): Use those.  Don't repeat bb processing
        immediately after first one with df_analyze in between, but rather
        process all bbs, queueing ones that need second pass in a worklist,
        df_analyze, process queued debug insn changes and if second pass is
        needed, process bbs from worklist, df_analyze, process queued debug
        insns again.

        * rtl.h (NONDEBUG_INSN_P): Define as NONJUMP_INSN_P or JUMP_P
        or CALL_P instead of INSN_P && !DEBUG_INSN_P.
        (INSN_P): Define using NONDEBUG_INSN_P or DEBUG_INSN_P.

2019-03-28  Jonathan Wakely  <jwakely@redhat.com>

        PR c/79022
        * gengtype.h (create_nested_ptr_option): Fix parameter names to match
        definition.

2019-03-27  Mateusz B  <mateuszb@poczta.onet.pl>

        PR target/85667
        * config/i386/i386.c (ix86_function_value_1): Call the newly added
        function for 32-bit MS_ABI.
        (function_value_ms_32): New function.

2019-03-27  Andrew Stubbs  <ams@codesourcery.com>

        * config/gcn/gcn.md (CC_SAVE_REG): New constant.
        (movdi): Call gen_movdi_symbol_save_scc.
        (gen_movdi_symbol_save_scc): New insn and split.

2019-03-27  Peter Bergner  <bergner@linux.ibm.com>

        PR rtl-optimization/89313
        * function.c (matching_constraint_num): New static function.
        (match_asm_constraints_1): Use it.  Fixup white space and comment.
        Don't replace inputs with non-matching constraints which conflict
        with early clobber outputs.

2019-03-27  Jeff Law  <law@redhat.com>

        PR rtl-optimization/87761
        PR rtl-optimization/89826
        * regcprop.c (copyprop_hardreg_forward_1): Move may_trap_p test
        slightly later.
        (pass_cprop_hardreg::execute): Call df_analyze after adding the
        note problem to get REG_DEAD/REG_UNUSED notes updated.

2019-03-27  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89463
        * tree-ssa-dce.c (remove_dead_stmt): Take output vector to
        queue edges to remove.
        (eliminate_unnecessary_stmts): Remove dead PHIs alongside
        dead stmts.  Delay edge removal until PHIs are removed to
        make debug-stmt creation not confused by seemingly degenerate
        PHIs.

2019-03-27  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.h: Rename NON_SPECIAL_REGS to GEN_OR_FLOAT_REGS
        throughout file.
        * config/rs6000/darwin.h: Likewise.
        * config/rs6000/rs6000.c: Likewise.

2019-03-27  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Always
        assign rs6000_hard_regno_mode_ok_p[m][r].  Formatting.

2019-03-26  Andrew Waterman  <andrew@sifive.com>
            Jim Wilson  <jimw@sifive.com>

        * config/riscv/generic.md (generic_alu, generic_load, generic_store)
        (generic_xfer, generic_branch, generic_imul, generic_idivsi)
        (generic_idivdi, generic_fmul_single, generic_fmul_double)
        (generic_fdiv, generic_fsqrt): Add check for generic tune.
        (generic_alu): Add auipc to type list.
        * config/riscv/riscv-opts.h (enum riscv_microarchitecture_type): New.
        (riscv_microarchitecture): Declare.
        * config/riscv/riscv-protos.h (riscv_store_data_bypass_p): Declare.
        * config/riscv/riscv.c (struct riscv_cpu_info): Add microarchitecture
        field.
        (riscv_microarchitecture): New.
        (sifive_7_tune_info): New.
        (riscv_cpu_info_table): Add microarchitecture value for rocket and
        size.  Add sifive-3-series, sifive-5-series, and sifive-7-series
        entries.
        (riscv_store_data_bypass_p): New.
        (riscv_option_override): Set riscv_microarchitecture from
        cpu->microarchitecture.
        * config/riscv/riscv.md: Include sifive-7.md.
        (type): Add auipc.
        (tune): New.
        (auipc<mode>): Change type to auipc.
        (restore_stack_nonlocal): New.
        * config/riscv/sifive-7.md: New.
        * doc/invoke.texi (RISC-V Options): Update mtune docs.

2019-03-26  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/89827
        * config/i386/i386.c (dimode_scalar_chain::convert_reg):
        Also process XEXP (src, 0) of a shift insn.

2019-03-26  Richard Biener  <rguenther@suse.de>

        * tree-inline.c (remap_gimple_stmt): Cache gimple_block.
        (copy_debug_stmt): Likewise.
        (expand_call_inline): Likewise.
        (copy_bb): Avoid redundant lookup & set of gimple_block.
        * gimple-low.c (lower_gimple_return): Likewise.
        (lower_builtin_setjmp): Likewise.

2019-03-26  Jakub Jelinek  <jakub@redhat.com>

        * hash-table.h (hash_table::m_gather_mem_stats): If GATHER_STATISTICS
        is constant 0, turn into static const data member initialized to false.
        (hash_table::hash_table): Only initialize m_gather_mem_stats #if
        GATHER_STATISTICS.  Add ATTRIBUTE_UNUSED to gather_mem_stats param.

2019-03-26  Jason Merrill  <jason@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>

        * mem-stats.h (mem_alloc_description::unregister_descriptor): New
        method.
        (mem_alloc_description::release_object_overhead): Fix comment typos.
        * hash-table.h (hash_table::~hash_table): Call
        release_instance_overhead only if m_entries is non-NULL, otherwise
        call unregister_descriptor.

2019-03-26  Bin Cheng  <bin.cheng@linux.alibaba.com>

        PR tree-optimization/81740
        * tree-vect-data-refs.c (vect_analyze_data_ref_dependence):
        In case of outer loop vectorization, check for backward dependence
        at the inner loop if outer loop dependence is reversed.

2019-03-26  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Correct
        rs6000_vector_mem init.  Correct wI and wJ comment.

2019-03-25  Alexander Monakov  <amonakov@ispras.ru>

        PR rtl-optimization/88347
        PR rtl-optimization/88423
        * sched-deps.c (sched_analyze_insn): Take into account that for
        tablejumps the barrier appears after a label and a jump_table_data.

2019-03-25  Martin Sebor  <msebor@redhat.com>

        PR c/89812
        * c-common.c (check_user_alignment): Rename local.  Correct maximum
        alignment in diagnostic.  Avoid assuming argument fits in SHWI,
        convert it to UHWI when it fits.

2019-03-25  Johan Karlsson  <johan.karlsson@enea.com>

        PR debug/86964
        * dwarf2out.c (premark_used_variables): New function.
        (prune_unused_types_walk): Do not mark not premarked external
        variables.
        (prune_unused_types): Call premark_used_variables.

2019-03-25  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/89676
        * lra-constraints.c (curr_insn_transform): Do match reload for
        early clobbers when the match was successful only for different
        registers.

2019-03-25  Martin Sebor  <msebor@redhat.com>

        * doc/extend.texi (Common Type Attributes): Document vector_size.
        (Common Variable Attributes): Mention size constraint.  Correct
        quoting and typos.
        (Vector Extensions): Use @dfn when defining bas type.  Clarify
        base type and size constraints.

2019-03-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89789
        * tree-ssa-sccvn.c (set_ssa_val_to): Do not allow lattice
        changes from non-undefined back to undefined.

2019-03-25  Thomas Otto  <thomas.otto@pdv-fs.de>

        * dwarf2out.c (comp_dir_string): cached_wd could be set to both a
        heap string and a gc string, but since this variable is unknown to
        ggc the gc string might get reused and corrupted. Fixed by always
        using a heap string.

2019-03-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89779
        * tree-ssa-loop-ivopts.c (remove_unused_ivs): Return
        to remove IV defs, delay actual removal.
        (tree_ssa_iv_optimize_loop): Likewise.  Avoid SCEV reset.
        (tree_ssa_iv_optimize): Remove eliminated IV defs at the
        very end, properly also reset loop control IV information.

2019-03-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89802
        * tree-ssa-math-opts.c (convert_mult_to_fma_1): Properly
        move EH data to folded stmt.

2019-03-25  Andreas Krebbel  <krebbel@linux.ibm.com>

        * config/s390/s390-builtin-types.def: Remove few unused types and
        fix sort order for others.

2019-03-25  Andreas Krebbel  <krebbel@linux.ibm.com>

        * config/s390/s390-c.c (s390_fn_types_compatible): Print the
        expected and found types with -mdebug during builtin matching.

2019-03-25  Richard Biener  <rguenther@suse.de>

        PR middle-end/89790
        * fold-const.c (operand_equal_p): Revert last change with
        updated comment.

2019-03-24  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (rs6000_legitimize_tls_address): Add REG_EQUAL
        notes for the result of the __tls_get_addr calls.
        * config/rs6000/rs6000.md (unspec UNSPEC_TLS_GET_ADDR): New.

2019-03-24  Jeff Law  <law@redhat.com>

        * config/bfin/bfin.md (movpdi): Fix length for alternative 1.

        PR rtl-optimization/87761
        * regcprop.c (copyprop_hardreg_forward_1): Check may_trap_p on SET,
        not INSN.  Also check RTX_FRAME_RELATED_P.  Queue insns for DF rescan
        as needed.
        (pass_cprop_hardreg::execute): Add df note problem and defer insn
        rescans.  Reprocess blocks as needed, calling df_analyze before
        reprocessing.  Always call df_analyze before fixing up debug bind
        insns.

2019-03-23  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/xmmintrin.h (_mm_movemask_pi8): Implement for 32-bit
        big endian.

2019-03-22  Andrew Pinski  <apinski@marvell.com>

        * config/aarch64/aarch64.md (zero_extendsidi2_aarch64): Fix type
        attrribute for uxtw.

2019-03-26  Jeff Law  <law@redhat.com>

        PR rtl-optimization/87761
        * config/mips/mips-protos.h (mips_split_move): Add new argument.
        (mips_emit_move_or_split): Pass NULL for INSN into mips_split_move.
        (mips_split_move): Accept new INSN argument.  Try to forward SRC
        into the next instruction.
        (mips_split_move_insn): Pass INSN through to mips_split_move.

2019-03-22  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/89676
        * lra-constraints.c (curr_insn_transform): Do match reload for
        early clobbers even if the match was successful.

2019-03-22  Jakub Jelinek  <jakub@redhat.com>

        PR c++/87481
        * doc/invoke.texi (-fconstexpr-ops-limit=): Document.

2019-03-22  Bill Schmidt  <wschmidt@linux.ibm.com>

        * config/rs6000/mmintrin.h (_mm_sub_pi32): Fix typo.

2019-03-22  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (<avx512>_fmadd_<mode>_mask3<round_name>,
        <avx512>_fmsub_<mode>_mask3<round_name>,
        <avx512>_fnmadd_<mode>_mask3<round_name>,
        <avx512>_fnmsub_<mode>_mask3<round_name>,
        avx512f_vmfmadd_<mode>_mask3<round_name>,
        avx512f_vmfmsub_<mode>_mask3<round_name>,
        *avx512f_vmfnmadd_<mode>_mask3<round_name>): Use <round_nimm_predicate>
        instead of register_operand and %v instead of v for match_operand 1.
        (avx512f_vmfnmsub_<mode>_mask3<round_name>): Rename to ...
        (*avx512f_vmfnmsub_<mode>_mask3<round_name>): ... this.  Use
        <round_nimm_predicate> instead of register_operand and %v instead of v
        for match_operand 1.

        * config/i386/sse.md (<avx512>_fmadd_<mode>_mask<round_name>,
        <avx512>_fmadd_<mode>_mask3<round_name>,
        <avx512>_fmsub_<mode>_mask<round_name>,
        <avx512>_fmsub_<mode>_mask3<round_name>,
        <avx512>_fnmadd_<mode>_mask<round_name>,
        <avx512>_fnmadd_<mode>_mask3<round_name>,
        <avx512>_fnmsub_<mode>_mask<round_name>,
        <avx512>_fnmsub_<mode>_mask3<round_name>,
        <avx512>_fmaddsub_<mode>_mask<round_name>,
        <avx512>_fmaddsub_<mode>_mask3<round_name>,
        <avx512>_fmsubadd_<mode>_mask<round_name>,
        <avx512>_fmsubadd_<mode>_mask3<round_name>): Use
        <round_nimm_predicate> instead of nonimmediate_operand.
        (fmai_vmfmadd_<mode><round_name>, fmai_vmfmsub_<mode><round_name>,
        fmai_vmfnmadd_<mode><round_name>, fmai_vmfnmsub_<mode><round_name>):
        Use register_operand instead of <round_nimm_predicate> for the
        operand that needs to match output.
        (*fmai_fmadd_<mode>, *fmai_fmsub_<mode>,
        *fmai_fnmadd_<mode><round_name>, *fmai_fnmsub_<mode><round_name>):
        Likewise.  Formatting fixes.

        PR target/89784
        * config/i386/i386.c (enum ix86_builtins): Remove
        IX86_BUILTIN_VFMSUBSD3_MASK3 and IX86_BUILTIN_VFMSUBSS3_MASK3.
        * config/i386/i386-builtin.def (__builtin_ia32_vfmaddsd3_mask,
        __builtin_ia32_vfmaddsd3_mask3, __builtin_ia32_vfmaddsd3_maskz,
        __builtin_ia32_vfmsubsd3_mask3, __builtin_ia32_vfmaddss3_mask,
        __builtin_ia32_vfmaddss3_mask3, __builtin_ia32_vfmaddss3_maskz,
        __builtin_ia32_vfmsubss3_mask3): New builtins.
        * config/i386/sse.md (avx512f_vmfmadd_<mode>_mask<round_name>,
        avx512f_vmfmadd_<mode>_mask3<round_name>,
        avx512f_vmfmadd_<mode>_maskz_1<round_name>,
        *avx512f_vmfmsub_<mode>_mask<round_name>,
        avx512f_vmfmsub_<mode>_mask3<round_name>,
        *avx512f_vmfmasub_<mode>_maskz_1<round_name>,
        *avx512f_vmfnmadd_<mode>_mask<round_name>,
        *avx512f_vmfnmadd_<mode>_mask3<round_name>,
        *avx512f_vmfnmadd_<mode>_maskz_1<round_name>,
        *avx512f_vmfnmsub_<mode>_mask<round_name>,
        avx512f_vmfnmsub_<mode>_mask3<round_name>,
        *avx512f_vmfnmsub_<mode>_maskz_1<round_name>): New define_insns.
        (avx512f_vmfmadd_<mode>_maskz<round_expand_name>): New define_expand.
        * config/i386/avx512fintrin.h (_mm_mask_fmadd_sd, _mm_mask_fmadd_ss,
        _mm_mask3_fmadd_sd, _mm_mask3_fmadd_ss, _mm_maskz_fmadd_sd,
        _mm_maskz_fmadd_ss, _mm_mask_fmsub_sd, _mm_mask_fmsub_ss,
        _mm_mask3_fmsub_sd, _mm_mask3_fmsub_ss, _mm_maskz_fmsub_sd,
        _mm_maskz_fmsub_ss, _mm_mask_fnmadd_sd, _mm_mask_fnmadd_ss,
        _mm_mask3_fnmadd_sd, _mm_mask3_fnmadd_ss, _mm_maskz_fnmadd_sd,
        _mm_maskz_fnmadd_ss, _mm_mask_fnmsub_sd, _mm_mask_fnmsub_ss,
        _mm_mask3_fnmsub_sd, _mm_mask3_fnmsub_ss, _mm_maskz_fnmsub_sd,
        _mm_maskz_fnmsub_ss, _mm_mask_fmadd_round_sd, _mm_mask_fmadd_round_ss,
        _mm_mask3_fmadd_round_sd, _mm_mask3_fmadd_round_ss,
        _mm_maskz_fmadd_round_sd, _mm_maskz_fmadd_round_ss,
        _mm_mask_fmsub_round_sd, _mm_mask_fmsub_round_ss,
        _mm_mask3_fmsub_round_sd, _mm_mask3_fmsub_round_ss,
        _mm_maskz_fmsub_round_sd, _mm_maskz_fmsub_round_ss,
        _mm_mask_fnmadd_round_sd, _mm_mask_fnmadd_round_ss,
        _mm_mask3_fnmadd_round_sd, _mm_mask3_fnmadd_round_ss,
        _mm_maskz_fnmadd_round_sd, _mm_maskz_fnmadd_round_ss,
        _mm_mask_fnmsub_round_sd, _mm_mask_fnmsub_round_ss,
        _mm_mask3_fnmsub_round_sd, _mm_mask3_fnmsub_round_ss,
        _mm_maskz_fnmsub_round_sd, _mm_maskz_fnmsub_round_ss): New intrinsics.

2019-03-21  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/89350
        * builtins.c (compute_objsize): Also ignore offsets whose upper
        bound is negative.
        * gimple-ssa-warn-restrict.c (builtin_memref): Add new member.
        (builtin_memref::builtin_memref): Initialize new member.
        Allow EXPR to be null.
        (builtin_memref::extend_offset_range): Replace local with a member.
        Avoid assuming pointer offsets are unsigned.
        (builtin_memref::set_base_and_offset): Determine base object
        before computing offset range.
        (builtin_access::builtin_access): Handle memset.
        (builtin_access::generic_overlap): Replace local with a member.
        (builtin_access::strcat_overlap): Same.
        (builtin_access::overlap): Same.
        (maybe_diag_overlap): Same.
        (maybe_diag_access_bounds): Same.
        (wrestrict_dom_walker::check_call): Handle memset.
        (check_bounds_or_overlap): Same.

2019-03-21  Jan Hubicka  <hubicka@ucw.cz>
            Jakub Jelinek  <jakub@redhat.com>

        PR lto/89692
        * tree.c (fld_type_variant, fld_incomplete_type_of,
        fld_process_array_type): Call fld->pset.add and don't call
        add_tree_to_fld_list if it returns true.
        (free_lang_data_in_type): Similarly with self-recursive call.  Purge
        non-marked types from TYPE_NEXT_VARIANT list.
        (find_decls_types_r): Call fld_worklist_push for TYPE_CANONICAL (t).

2019-03-21  Jakub Jelinek  <jakub@redhat.com>

        * hash-table.h (hash_table): Add Lazy template parameter defaulted
        to false, if true, don't alloc_entries during construction, but defer
        it to the first method that needs m_entries allocated.
        (hash_table::hash_table, hash_table::~hash_table,
        hash_table::alloc_entries, hash_table::find_empty_slot_for_expand,
        hash_table::too_empty_p, hash_table::expand, hash_table::empty_slow,
        hash_table::clear_slot, hash_table::traverse_noresize,
        hash_table::traverse, hash_table::iterator::slide): Adjust all methods.
        * hash-set.h (hash_set): Add Lazy template parameter defaulted to
        false.
        (hash_set::contains): If Lazy is true, use find_slot_with_hash with
        NO_INSERT instead of find_with_hash.
        (hash_set::traverse, hash_set::iterator, hash_set::iterator::m_iter,
        hash_set::m_table): Add Lazy to template params of hash_table.
        (gt_ggc_mx, gt_pch_nx): Use false as Lazy in hash_set template param.
        * attribs.c (test_attribute_exclusions): Likewise.
        * hash-set-tests.c (test_set_of_strings): Add iterator tests for
        hash_set.  Add tests for hash_set with Lazy = true.

2019-03-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89779
        * tree.c (tree_nop_conversion): Consolidate and fix defensive
        checks with respect to released SSA names now having error_mark_node
        type.
        * fold-const.c (operand_equal_p): Likewise.

2019-03-20  Andreas Krebbel  <krebbel@linux.ibm.com>

        PR target/89775
        * config/s390/s390.c (global_not_special_regno_p): Move to make it
        available to ...
        (s390_optimize_register_info): Use global_not_special_regno_p to
        check for global regs.

2019-03-20  Jakub Jelinek  <jakub@redhat.com>

        PR target/89752
        * lra-constraints.c (process_alt_operands) <reg>: For BLKmode, don't
        update this_alternative nor this_alternative_set.

2019-03-19  Jim Wilson  <jimw@sifive.com>

        PR target/89411
        * config/riscv/riscv.c (riscv_valid_lo_sum_p): New arg x.  New locals
        align, size, offset.  Use them to handle a BLKmode reference.  Update
        comment.
        (riscv_classify_address): Pass info->offset to riscv_valid_lo_sum_p.

2019-03-19  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/89768
        * loop-unroll.c (unroll_loop_constant_iterations): Use gen_int_mode
        instead of GEN_INT.
        (unroll_loop_runtime_iterations): Likewise.

2019-03-19  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/89644
        * tree-ssa-strlen.c (handle_builtin_stxncpy): Use full_string_p
        rather than endptr as an indicator of nul-termination.

        PR tree-optimization/89644
        * tree-ssa-strlen.c (handle_builtin_stxncpy): Consider unterminated
        arrays in determining sequence sizes in strncpy and stpncpy.

2019-03-19  Martin Liska  <mliska@suse.cz>

        PR middle-end/89737
        * predict.c (combine_predictions_for_bb): Empty likely_edges and
        unlikely_edges if there's an edge that belongs to both these sets.

2018-03-19  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/89746
        * config/rs6000/rs6000.md (fix_trunc<mode>si2_stfiwx): If we have a
        non-TARGET_MFCRF target, and the dest is memory but not 32-bit aligned,
        go via a stack temporary.

2019-03-19  Jakub Jelinek  <jakub@redhat.com>

        PR target/89378
        * config/mips/mips.c (mips_expand_vec_cond_expr): Use gen_lowpart
        instead of gen_rtx_SUBREG.
        * config/mips/mips-msa.md (vec_extract<mode><unitmode>): Likewise.

2019-03-19  Richard Biener  <rguenther@suse.de>

        PR debug/88389
        * opts.c (finish_options): Disable -gsplit-dwarf when doing LTO.

2019-03-19  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/87809
        PR lto/89335
        * tree.c (free_lang_data_in_decl): Do not free context of C++
        destrutors.

2019-03-19  Jakub Jelinek  <jakub@redhat.com>

        PR target/89506
        * config/arm/arm.md (cmpsi2_addneg): Swap the alternatives and use
        subs for the first alternative except when operands[3] is 1.

        PR target/89752
        * gimplify.c (gimplify_asm_expr): For output argument with
        TREE_ADDRESSABLE type, clear allows_reg if it allows memory, otherwise
        diagnose error.

2019-03-19  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/89753
        * loop-unroll.c (decide_unroll_constant_iterations): Make guard for
        explicit unrolling factor even more robust.

2019-03-19  Jakub Jelinek  <jakub@redhat.com>

        PR target/89726
        * config/i386/i386.c (ix86_expand_floorceildf_32): In ceil
        compensation use x2 += 1 instead of x2 -= -1 and when honoring
        signed zeros, do another copysign after the compensation.

2019-03-18  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/89720
        * tree-vrp.c (vrp_prop::check_mem_ref): Treat range with max < min
        more conservatively, the same as anti-range.

2019-03-18  Richard Biener  <rguenther@suse.de>

        PR middle-end/88945
        * tree-ssanames.c (release_ssa_name_fn): For released SSA names
        use a TREE_TYPE of error_mark_node to avoid ICEs when dumping
        basic-blocks that are removed.  Remove restoring SSA_NAME_VAR.
        * tree-outof-ssa.c (eliminate_useless_phis): Remove redundant checking.

2019-03-18  Andrew Stubbs  <ams@codesourcery.com>

        * config/gcn/gcn-run.c (struct output): Make next_output unsigned.
        Extend queue to 1024 entries.
        Add "consumed" field.
        (gomp_print_output): Remove print_index parameter.
        Add final parameter.
        Change limit to unsigned.
        Use consumed field to implement circular buffer.
        Detect interrupted print in final pass.
        Flush output at the end.
        (run): Update gomp_print_output usage.
        (main): Initialize kernargs->output_data.consumed.

2019-03-18  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-vect-loop.c (vect_estimate_min_profitable_iters): Fix the
        calculation of the minimum number of scalar iterations for
        fully-predicated loops.

2019-03-18  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/89546
        * tree-sra.c (propagate_subaccesses_across_link): Requeue new_acc if
        any propagation to its children took place.

2019-03-18  Andrew Burgess  <andrew.burgess@embecosm.com>

        PR target/89627
        * config/riscv/riscv.c (riscv_pass_fpr_single): Add offset
        parameter, and make use of it.
        (riscv_get_arg_info): Pass offset to riscv_pass_fpr_single.

2019-03-18  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.opt (mcode-density-frame): Get the inital value
        from TARGET_CODE_DENSITY_FRAME_DEFAULT.
        * config/arc/elf.h (TARGET_CODE_DENSITY_FRAME_DEFAULT): Define.
        * config/arc/linux.h (TARGET_CODE_DENSITY_FRAME_DEFAULT): Define.
        * config/arc/arc.md (pop_multi_fp_blink): Adjust constraints to
        match what the ops is doing.
        (push_multi_fp_blink): Likewise.
        * config/arc/arc.c (arc_override_options): Enable enter/leave when
        compiling for size and elf target.
        (arc_save_callee_enter): Adjust note to match what enter/leave
        operation does.

2019-03-18  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.md (tst_movb): Fix constraint.

2019-03-18  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc.c (TARGET_HAVE_SPECULATION_SAFE_VALUE): Define.

2019-03-18  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc-protos.h (arc_adjust_reg_alloc_order): Declare.
        * config/arc/arc.c (arc_conditional_register_usage): Remove all
        reg_alloc_order references.
        (size_alloc_order): Define.
        (arc_adjust_reg_alloc_order): New function.
        * config/arc/arc.h (REG_ALLOC_ORDER): Proper define the register
        order.
        (ADJUST_REG_ALLOC_ORDER): Define.
        (HONOR_REG_ALLOC_ORDER): Likewise.

2019-03-18  Richard Biener  <rguenther@suse.de>

        PR target/87561
        * config/i386/i386.c (ix86_add_stmt_cost): Pessimize strided
        loads and stores a bit more.

2019-03-18  Richard Biener  <rguenther@suse.de>

        PR target/87561
        * config/i386/i386.c (ix86_add_stmt_cost): Apply strided
        load pessimization to stores as well.

2019-03-18  Andrey Belevantsev  <abel@ispras.ru>

        PR middle-end/86979
        * sel-sched.c (compute_av_set_at_bb_end): When we have an ineligible
        successor, use NULL as its av set.

2019-03-15  Segher Boessenkool  <segher@kernel.crashing.org>

        PR rtl-optimization/89721
        * lra-constraints (invariant_p): Return false if side_effects_p holds.

2019-03-15  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        PR target/87532
        * config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
        When handling vec_extract, use modular arithmetic to allow
        constant selectors greater than vector length.
        * config/rs6000/rs6000.c (rs6000_expand_vector_extract): Allow
        V1TImode vectors to have constant selector values greater than 0.
        Use modular arithmetic to compute vector index.
        (rs6000_split_vec_extract_var): Use modular arithmetic to compute
        index for in-memory vectors.  Correct code generation for
        in-register vectors.
        (altivec_expand_vec_ext_builtin): Use modular arithmetic to
        compute index.

2019-03-15  Alexandre Oliva  <aoliva@redhat.com>

        PR c++/88534
        PR c++/88537
        * dwarf2out.c (generic_parameter_die): Follow DECL_INITIAL of
        VAR_DECL args.

2019-03-15  Jakub Jelinek  <jakub@redhat.com>

        PR c++/89709
        * tree.c (inchash::add_expr): Strip any location wrappers.
        * fold-const.c (operand_equal_p): Move stripping of location wrapper
        after hash verification.

        PR debug/89704
        * dwarf2out.c (add_const_value_attribute): Return false for MINUS,
        SIGN_EXTEND and ZERO_EXTEND.

2019-03-14  Jason Merrill  <jason@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>

        * hash-table.h (remove_elt_with_hash): Return if slot is NULL rather
        than if is_empty (*slot).
        * hash-set-tests.c (test_set_of_strings): Add tests for addition of
        existing elt and for elt removal.
        * hash-map-tests.c (test_map_of_strings_to_int): Add test for removal
        of already removed elt.

2019-03-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89650
        * config/i386/i386.c (remove_partial_avx_dependency): Handle
        REG_EH_REGION note.

2019-03-14  Martin Liska  <mliska@suse.cz>

        PR other/89712
        * doc/invoke.texi: Remove -fdump-class-hierarchy option.

2019-03-14  Richard Biener  <rguenther@suse.de>

        PR target/89711
        * config/i386/i386.c (make_resolver_func): Properly set
        DECL_CONTEXT on the RESULT_DECL.
        * config/rs6000/rs6000.c (make_resolver_func): Likewise.

2019-03-14  Richard Biener  <rguenther@suse.de>

        * gimple-pretty-print.c: Include cfgloop.h.
        (dump_gimple_phi): Adjust.
        (dump_gimple_bb_header): Dump loop header for GIMPLE.
        (pp_cfg_jump): Adjust.
        (dump_implicit_edges): Dump fallthru to next block for GIMPLE as well.
        * tree-cfg.c (build_gimple_cfg): Remove lower_phi_internal_fn call.
        (lower_phi_internal_fn): Remove.
        (verify_gimple_call): Remove IFN_PHI special-casing.
        (dump_function_to_file): Dump IL state.
        * tree-into-ssa.c (rewrite_add_phi_arguments): Revert changes
        done to deal with PHI nodes being present in non-SSA state.

2019-03-14  Jakub Jelinek  <jakub@redhat.com>

        PR ipa/89684
        * multiple_target.c (create_dispatcher_calls): Change
        references_to_redirect from vector of ipa_ref * to vector of ipa_ref.
        In the node->iterate_referring loop, push *ref rather than ref, call
        ref->remove_reference () and always pass 0 to iterate_referring.

        PR rtl-optimization/89679
        * expmed.c (expand_mult_const): Don't add a REG_EQUAL note if it
        would contain a paradoxical SUBREG.

2019-03-14  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89710
        * tree-ssa-loop-ch.c (should_duplicate_loop_header_p): Use
        safe_dyn_cast.

2019-03-14  Martin Liska  <mliska@suse.cz>

        * coverage.c (coverage_begin_function): Stream also
        end_column.
        * doc/gcov.texi: Document 2 new fields in JSON file.  Improve
        documentation about function declaration location.
        * gcov-dump.c (tag_function): Print whole range
        of function declaration.
        * gcov.c (struct function_info): Add end_column field.
        (function_info::function_info): Initialize it.
        (output_json_intermediate_file): Output {start,end}_column
        fields.
        (read_graph_file): Read end_column.

2019-03-14  Richard Biener  <rguenther@suse.de>

        PR middle-end/89698
        * fold-const.c (operand_equal_p): For INDIRECT_REF check
        that the access types are similar.

2019-03-14  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/89703
        * tree-ssa-strlen.c (valid_builtin_call): Punt if stmt call types
        aren't compatible also with builtin_decl_explicit.  Check pure
        or non-pure status of BUILT_IN_STR{{,N}CMP,N{LEN,{CAT,CPY}{,_CHK}}}
        and BUILT_IN_STPNCPY{,_CHK}.

2019-03-14  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89523
        * config/i386/i386.c (ix86_print_operand): Handle 'M' to add
        addr32 prefix to VSIB address for X32.
        * config/i386/sse.md (*avx512pf_gatherpf<mode>sf_mask): Prepend
        "%M2" to opcode.
        (*avx512pf_gatherpf<mode>df_mask): Likewise.
        (*avx512pf_scatterpf<mode>sf_mask): Likewise.
        (*avx512pf_scatterpf<mode>df_mask): Likewise.
        (*avx2_gathersi<mode>): Prepend "%M3" to opcode.
        (*avx2_gathersi<mode>_2): Prepend "%M2" to opcode.
        (*avx2_gatherdi<mode>): Prepend "%M3" to opcode.
        (*avx2_gatherdi<mode>_2): Prepend "%M2" to opcode.
        (*avx2_gatherdi<mode>_3): Prepend "%M3" to opcode.
        (*avx2_gatherdi<mode>_4): Prepend "%M2" to opcode.`
        (*avx512f_gathersi<mode>): Prepend "%M4" to opcode.
        (*avx512f_gathersi<mode>_2): Prepend "%M3" to opcode.
        (*avx512f_gatherdi<mode>): Prepend "%M4" to opcode.
        (*avx512f_gatherdi<mode>_2): Prepend "%M3" to opcode.
        (*avx512f_scattersi<mode>): Prepend "%M0" to opcode.
        (*avx512f_scatterdi<mode>): Likewise.

2019-03-13  Vladimir Makarov  <vmakarov@redhat.com>

        PR target/85860
        * lra-constraints.c (inherit_in_ebb): Update
        potential_reload_hard_regs along with live_hard_regs.

2019-03-13  Jakub Jelinek  <jakub@redhat.com>

        PR debug/89498
        * dwarf2out.c (size_of_die): For dw_val_class_view_list always use
        DWARF_OFFSET_SIZE.
        (value_format): For dw_val_class_view_list never use DW_FORM_loclistx.

2019-03-13  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/89662
        * tree-vrp.c (vrp_prop::check_mem_ref): Avoid assuming every type
        has a size.

2019-03-13  Richard Biener  <rguenther@suse.de>

        PR middle-end/89677
        * tree-scalar-evolution.c (simplify_peeled_chrec): Do not
        throw FP expressions at tree-affine.

2019-03-14  Richard Biener  <rguenther@suse.de>

        * tree-pretty-print.c (dump_generic_node): For -gimple properly
        dump negative integer constants using _Literal (type) -num.

2019-03-13  Jakub Jelinek  <jakub@redhat.com>

        * ipa-param-manipulation.h (struct ipa_parm_adjustment): Remove
        nonlocal_value member.

        PR middle-end/88588
        * omp-simd-clone.c (ipa_simd_modify_stmt_ops): Handle PHI args.
        (ipa_simd_modify_function_body): Handle PHIs.

2019-03-12  Robin Dapp  <rdapp@linux.ibm.com>

        * config/s390/s390.c (s390_option_override_internal): Use more
        aggressive inlining parameters.

2019-03-12  Robin Dapp  <rdapp@linux.ibm.com>

        * config/s390/3906.md: New file.
        * config/s390/s390.c (MAX_SCHED_UNITS): Increase.
        (LONGRUNNING_THRESHOLD): Remove.
        (MAX_SCHED_MIX_SCORE): Decrease.
        (MAX_SCHED_MIX_DISTANCE): Decrease.
        (s390_bb_fallthru_entry_likely): Assume fallthru for less than likely.
        (struct s390_sched_state): New struct to hold scheduling state.
        (S390_SCHED_STATE_NORMAL): Remove.
        (S390_SCHED_STATE_CRACKED): Remove.
        (S390_SCHED_ATTR_MASK_GROUPOFTWO): Add.
        (s390_get_sched_attrmask): Use new attribute.
        (s390_get_unit_mask): Use new units.
        (s390_is_fpd): New function.
        (s390_is_fxd): New function.
        (s390_is_longrunning): New function.
        (s390_sched_score): Use new functions.
        (s390_sched_reorder): Likewise.
        (s390_sched_variable_issue): Rework and use new functions.
        (s390_sched_init): Use new functions.
        * config/s390/s390.h (s390_tune_attr): Add z14.
        * config/s390/s390.md: Add z14.

2019-03-12  Robin Dapp  <rdapp@linux.ibm.com>

        * config/s390/2964.md: Update pipeline description.
        * config/s390/s390.c (MAX_SCHED_UNITS): Increase.
        (LONGRUNNING_THRESHOLD): Remove.
        (LATENCY_FACTOR): Remove.
        (s390_get_unit_mask): Add unit.
        (s390_sched_score): Use fxd/fpd.
        (s390_sched_variable_issue): Use fxd/fpd.

2019-03-12  Martin Liska  <mliska@suse.cz>

        * config/i386/i386.c: Reword an error message.

2019-03-12  Martin Jambor  <mjambor@suse.cz>

        * cgraph.c (cgraph_node::dump): Dump more info for former thunks,
        terminate with newline.

2019-03-12  Jakub Jelinek  <jakub@redhat.com>

        PR target/52726
        * config/s390/s390.md (tabort): Use %wd instead of
        HOST_WIDE_INT_PRINT_DEC in error message, reword to avoid two capital
        letters and periods.
        * config/tilepro/tilepro.c (tilepro_print_operand): Use %wd in
        output_operand_lossage instead of HOST_WIDE_INT_PRINT_DEC, replace
        's with %< and %>.

        PR middle-end/89663
        * builtins.c (expand_builtin_int_roundingfn,
        expand_builtin_int_roundingfn_2): Return NULL_RTX instead of
        gcc_unreachable if validate_arglist fails.

2019-03-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89664
        * tree-ssa-math-opts.c (execute_cse_reciprocals_1): Properly
        free the occurance tree after the early out.

2019-03-11  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/89655
        PR bootstrap/89656
        * vr-values.c (vr_values::update_value_range): If
        old_vr->varying_p (), don't update it, make new_vr also VARYING
        and return false.

2019-03-11  Martin Liska  <mliska@suse.cz>

        * config/aarch64/aarch64.c (aarch64_override_options_internal):
        Fix double string quoting.

2019-03-11  Martin Liska  <mliska@suse.cz>

        * collect-utils.c (collect_wait): Wrap apostrophes
        in gcc internal format with %'.
        * collect2.c (main): Likewise.
        (scan_prog_file): Likewise.
        (scan_libraries): Likewise.
        * config/i386/i386.c (ix86_expand_call): Likewise.
        (ix86_handle_interrupt_attribute): Likewise.
        * config/nds32/nds32-intrinsic.c (nds32_expand_builtin_impl): Likewise.
        * config/nds32/nds32.c (nds32_insert_attributes): Likewise.
        * config/rl78/rl78.c (rl78_handle_saddr_attribute): Likewise.
        * lto-wrapper.c (find_crtoffloadtable): Likewise.
        * symtab.c (symtab_node::verify_base): Likewise.
        * tree-cfg.c (verify_gimple_label): Likewise.
        * tree.c (verify_type_variant): Likewise.

2019-03-11  Martin Liska  <mliska@suse.cz>

        * builtins.c (expand_builtin_thread_pointer): Wrap an option name
        in a string format message and fix GNU coding style.
        (expand_builtin_set_thread_pointer): Likewise.
        * common/config/aarch64/aarch64-common.c
        (aarch64_rewrite_selected_cpu): Likewise.
        * common/config/alpha/alpha-common.c (alpha_handle_option): Likewise.
        * common/config/arc/arc-common.c (arc_handle_option): Likewise.
        * common/config/arm/arm-common.c (arm_parse_fpu_option): Likewise.
        * common/config/bfin/bfin-common.c (bfin_handle_option): Likewise.
        * common/config/i386/i386-common.c (ix86_handle_option): Likewise.
        * common/config/ia64/ia64-common.c (ia64_handle_option): Likewise.
        * common/config/m68k/m68k-common.c (m68k_handle_option): Likewise.
        * common/config/msp430/msp430-common.c (msp430_handle_option): Likewise.
        * common/config/nds32/nds32-common.c (nds32_handle_option): Likewise.
        * common/config/powerpcspe/powerpcspe-common.c (rs6000_handle_option):
        Likewise.
        * common/config/riscv/riscv-common.c
        (riscv_subset_list::parsing_subset_version): Likewise.
        (riscv_subset_list::parse_std_ext): Likewise.
        (riscv_subset_list::parse_sv_or_non_std_ext): Likewise.
        (riscv_subset_list::parse): Likewise.
        * common/config/rs6000/rs6000-common.c (rs6000_handle_option): Likewise.
        * config/aarch64/aarch64.c (aarch64_parse_one_option_token): Likewise.
        (aarch64_override_options_internal): Likewise.
        (aarch64_validate_mcpu): Likewise.
        (aarch64_validate_march): Likewise.
        (aarch64_validate_mtune): Likewise.
        (aarch64_override_options): Likewise.
        * config/alpha/alpha.c (alpha_option_override): Likewise.
        * config/arc/arc.c (arc_init): Likewise.
        (parse_mrgf_banked_regs_option): Likewise.
        (arc_override_options): Likewise.
        (arc_expand_builtin_aligned): Likewise.
        * config/arm/arm-builtins.c (arm_expand_neon_builtin): Likewise.
        (arm_expand_builtin): Likewise.
        * config/arm/arm.c (arm_option_check_internal): Likewise.
        (arm_configure_build_target): Likewise.
        (arm_option_override): Likewise.
        (arm_options_perform_arch_sanity_checks): Likewise.
        (arm_handle_cmse_nonsecure_entry): Likewise.
        (arm_handle_cmse_nonsecure_call): Likewise.
        (arm_tls_referenced_p): Likewise.
        (thumb1_expand_prologue): Likewise.
        * config/avr/avr.c (avr_option_override): Likewise.
        * config/bfin/bfin.c (bfin_option_override): Likewise.
        * config/c6x/c6x.c (c6x_option_override): Likewise.
        * config/cr16/cr16.c (cr16_override_options): Likewise.
        * config/cris/cris.c (cris_option_override): Likewise.
        * config/csky/csky.c (csky_handle_isr_attribute): Likewise.
        * config/darwin-c.c (macosx_version_as_macro): Likewise.
        * config/darwin.c (darwin_override_options): Likewise.
        * config/frv/frv.c (frv_expand_builtin): Likewise.
        * config/h8300/h8300.c (h8300_option_override): Likewise.
        * config/i386/i386.c (parse_mtune_ctrl_str): Likewise.
        (ix86_option_override_internal): Likewise.
        (warn_once_call_ms2sysv_xlogues): Likewise.
        (ix86_expand_prologue): Likewise.
        (split_stack_prologue_scratch_regno): Likewise.
        (ix86_warn_parameter_passing_abi): Likewise.
        * config/ia64/ia64.c (fix_range): Likewise.
        * config/m68k/m68k.c (m68k_option_override): Likewise.
        * config/microblaze/microblaze.c (microblaze_option_override): Likewise.
        * config/mips/mips.c (mips_emit_probe_stack_range): Likewise.
        (mips_set_compression_mode): Likewise.
        * config/mmix/mmix.c (mmix_option_override): Likewise.
        * config/mn10300/mn10300.c (mn10300_option_override): Likewise.
        * config/msp430/msp430.c (msp430_option_override): Likewise.
        * config/nds32/nds32.c (nds32_option_override): Likewise.
        * config/nios2/nios2.c (nios2_custom_check_insns): Likewise.
        (nios2_option_override): Likewise.
        (nios2_expand_custom_builtin): Likewise.
        * config/nvptx/mkoffload.c (main): Likewise.
        * config/nvptx/nvptx.c (diagnose_openacc_conflict): Likewise.
        * config/pa/pa.c (fix_range): Likewise.
        (pa_option_override): Likewise.
        * config/riscv/riscv.c (riscv_parse_cpu): Likewise.
        (riscv_option_override): Likewise.
        * config/rl78/rl78.c (rl78_option_override): Likewise.
        * config/rs6000/aix61.h: Likewise.
        * config/rs6000/aix71.h: Likewise.
        * config/rs6000/aix72.h: Likewise.
        * config/rs6000/driver-rs6000.c (elf_platform): Likewise.
        * config/rs6000/freebsd64.h: Likewise.
        * config/rs6000/linux64.h: Likewise.
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Likewise.
        (rs6000_expand_zeroop_builtin): Likewise.
        (rs6000_expand_mtfsb_builtin): Likewise.
        (rs6000_expand_set_fpscr_rn_builtin): Likewise.
        (rs6000_expand_set_fpscr_drn_builtin): Likewise.
        (rs6000_invalid_builtin): Likewise.
        (rs6000_expand_split_stack_prologue): Likewise.
        * config/rs6000/rtems.h: Likewise.
        * config/rx/rx.c (valid_psw_flag): Likewise.
        (rx_expand_builtin): Likewise.
        * config/s390/s390-c.c (s390_resolve_overloaded_builtin): Likewise.
        * config/s390/s390.c (s390_expand_builtin): Likewise.
        (s390_function_profiler): Likewise.
        (s390_option_override_internal): Likewise.
        (s390_option_override): Likewise.
        * config/sh/sh.c (sh_option_override): Likewise.
        (sh_builtin_saveregs): Likewise.
        (sh_fix_range): Likewise.
        * config/sh/vxworks.h: Likewise.
        * config/sparc/sparc.c (sparc_option_override): Likewise.
        * config/spu/spu.c (spu_option_override): Likewise.
        (fix_range): Likewise.
        * config/visium/visium.c (visium_option_override): Likewise.
        (visium_handle_interrupt_attr): Likewise.
        * config/xtensa/xtensa.c (xtensa_option_override): Likewise.
        * dbgcnt.c (dbg_cnt_set_limit_by_name): Likewise.
        (dbg_cnt_process_opt): Likewise.
        * dwarf2out.c (output_dwarf_version): Likewise.
        * except.c (expand_eh_return): Likewise.
        * gcc.c (defined): Likewise.
        (driver_handle_option): Likewise.
        (process_command): Likewise.
        (compare_files): Likewise.
        (driver::prepare_infiles): Likewise.
        (driver::do_spec_on_infiles): Likewise.
        (driver::maybe_run_linker): Likewise.
        * omp-offload.c (oacc_parse_default_dims): Likewise.
        * opts-global.c (handle_common_deferred_options): Likewise.
        * opts.c (parse_sanitizer_options): Likewise.
        (common_handle_option): Likewise.
        (enable_warning_as_error): Likewise.
        * passes.c (enable_disable_pass): Likewise.
        * plugin.c (parse_plugin_arg_opt): Likewise.
        (default_plugin_dir_name): Likewise.
        * targhooks.c (default_expand_builtin_saveregs): Likewise.
        (default_pch_valid_p): Likewise.
        * toplev.c (init_asm_output): Likewise.
        (process_options): Likewise.
        (toplev::run_self_tests): Likewise.
        * tree-cfg.c (verify_gimple_call): Likewise.
        * tree-inline.c (inline_forbidden_p_stmt): Likewise.
        (tree_inlinable_function_p): Likewise.
        * var-tracking.c (vt_find_locations): Likewise.

2019-03-11  Andreas Krebbel  <krebbel@linux.ibm.com>

        * config/s390/s390.c (s390_expand_builtin): Do the copy_to_reg not
        only on the else branch.

2019-03-11  Martin Liska  <mliska@suse.cz>

        * gcov.c (output_intermediate_json_line): Print function
        name of each line.
        (output_json_intermediate_file): Add new argument.
        * doc/gcov.texi: Document the change.

2019-03-11  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/89588
        * loop-unroll.c (decide_unroll_constant_iterations): Make guard for
        explicit unrolling factor more robust.

2019-03-11  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89649
        * tree-vectorizer.h (vect_loop_versioning): Adjust prototype.
        * tree-vect-loop-manip.c (vect_do_peeling): Unset force_vectorize
        on the prolog and epilog loops.
        (vect_loop_versioning): Return copy of loop.
        * tree-vect-loop.c (vect_transform_loop): Unset force_vectorize
        on the non-vectorized version of the loop.

2019-03-10  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/68924
        * config/i386/sse.md (*vec_extractv2di_0_sse):
        Add (=r,x) alternative and corresponding splitter.

2019-03-10  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/85762
        PR tree-optimization/87008
        PR tree-optimization/85459
        * tree-sra.c (contains_vce_or_bfcref_p): New parameter, set the bool
        it points to if there is a type changing MEM_REF.  Adjust all callers.
        (build_accesses_from_assign): Disable total scalarization if
        contains_vce_or_bfcref_p returns true through the new parameter, for
        both rhs and lhs.

2019-03-09  Jakub Jelinek  <jakub@redhat.com>

        PR c/88568
        * attribs.c (handle_dll_attribute): Don't clear TREE_STATIC for
        dllimport on VAR_DECLs with RECORD_TYPE or UNION_TYPE DECL_CONTEXT.

        PR target/79645
        * common.opt (fdiagnostics-show-labels,
        fdiagnostics-show-line-numbers, fdiagnostics-format=,
        fdiagnostics-minimum-margin-width=, fgnat-encodings=, gas-loc-support,
        gas-locview-support, ginline-points, ginternal-reset-location-views):
        Terminate description text with a dot.
        * config/microblaze/microblaze.opt (mxl-prefetch): Likewise.
        * config/mcore/mcore.opt (m210, m340): Likewise.
        * config/epiphany/epiphany.opt (mprefer-short-insn-regs, mcmove,
        mnops=): Start description text with a capital letter.
        * config/arc/arc.opt (msize-level=): Likewise.
        * config/sh/sh.opt (minline-ic_invalidate): Likewise.
        * config/rs6000/sysv4.opt (mno-toc, mtoc, mno-traceback, mshlib,
        mnewlib): Likewise.
        * config/ft32/ft32.opt (msim): Likewise.
        (mft32b, mcompress): Likewise.  Terminate description text with a dot.
        (mnodiv, mnopm): Terminate description text with a dot.
        * config/c6x/c6x.opt (c6x_sdata): Terminate Enum description with
        a colon.
        * config/i386/i386.opt (prefer_vector_width, instrument_return):
        Likewise.
        * config/rx/rx.opt (nofpu): Remove trailing spaces from description
        text.

        PR rtl-optimization/89634
        * cfgcleanup.c (thread_jump): Punt if registers mentioned in cond1
        are modified in BB_END (e->src) instruction.

2019-03-08  David Malcolm  <dmalcolm@redhat.com>

        PR target/79926
        * config/i386/i386.c (ix86_set_current_function): Make "sorry"
        messages more amenable to translation, and improve wording.

2019-03-08  Bill Schmidt  <wschmidt@linux.ibm.com>

        * config/rs6000/rs6000-p8swap.c (rs6000_analyze_swaps): Rebuild
        ud- and du-chains between phases.

2019-03-08  Richard Sandiford  <richard.sandiford@arm.com>

        PR debug/89631
        * dwarf2cfi.c (dwarf2out_frame_debug_expr): Use CONST_POLY_INT
        instead of POLY_INT_CST.

2019-03-08  Andre Vieira  <andre.simoesdiasvieira@arm.com>

        * config/arm/arm.h (TARGET_FP16_TO_DOUBLE): Add TARGET_VFP_DOUBLE
        requirement.

2019-03-08  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/68924
        PR target/78782
        PR target/87558
        * config/i386/emmintrin.h (_mm_loadu_si64): New intrinsic.
        (_mm_storeu_si64): Ditto.

2019-03-08  Martin Liska  <mliska@suse.cz>

        PR target/86952
        * config/i386/i386.c (ix86_option_override_internal): Disable
        jump tables when retpolines are used.

2019-03-08  Jan Hubicka  <hubicka@ucw.cz>

        PR go/63560
        * ipa-split.c (execute_split_functions): Do not split
        'noinline' or 'section' function.

2019-03-08  Jakub Jelinek  <jakub@redhat.com>

        PR target/79846
        * config/s390/s390.c (s390_const_operand_ok): Use %wu instead of
        HOST_WIDE_INT_PRINT_UNSIGNED and %wd instead of
        HOST_WIDE_INT_PRINT_DEC.  Formatting fixes.

        PR ipa/80000
        * ipa-devirt.c (compare_virtual_tables): Remove two trailing spaces
        from diagnostics.  Formatting fixes.

        PR target/85665
        * ipa-devirt.c (odr_types_equivalent_p): Fix grammar in
        warn_odr diagnostics.

        PR other/80058
        * lra-constraints.c (process_alt_operands): Avoid one space before
        " at the end of line and another after " on another line in a string
        literal.
        * attribs.c (handle_dll_attribute): Likewise.
        * config/avr/avr-devices.c (avr_texinfo): Likewise.

        * gimple-ssa-warn-alloca.c (pass_walloca::execute): Don't wrap
        warning_at or inform messages in G_() if there is no ?:.

        PR tree-optimization/89550
        * builtins.c (c_strlen): Only set TREE_NO_WARNING if warning_at
        returned true.  Formatting fixes.
        (expand_builtin_strnlen): Formatting fixes.
        * tree-vrp.c (vrp_prop::check_mem_ref): Only set TREE_NO_WARNING
        if warning_at returned true.
        * tree-cfg.c (pass_warn_function_return::execute): Likewise.

2019-03-08  Richard Biener  <rguenther@suse.de>

        PR middle-end/89578
        * cfgloop.h (struct loop): Add owned_clique field.
        * cfgloopmanip.c (copy_loop_info): Copy it.
        * tree-cfg.c (gimple_duplicate_bb): Do not remap owned_clique
        cliques.
        * tree-inline.c (copy_loops): Remap owned_clique.
        * lto-streamer-in.c (input_cfg): Stream owned_clique.
        * lto-streamer-out.c (output_cfg): Likewise.

2019-03-08  Jakub Jelinek  <jakub@redhat.com>

        PR target/80190
        * config/darwin.c: Include intl.h.
        (darwin_build_constant_cfstring): Improve i18n of diagnostics by not
        composing the message out of two separate parts.

2019-03-07  Jakub Jelinek  <jakub@redhat.com>

        PR target/80003
        * config/i386/i386.c (ix86_set_func_type): Make sure diagnostics
        doesn't start with a capital letter and doesn't end with a dot.
        (ix86_function_arg_boundary): Make sure diagnostics doesn't start
        with a capital letter.
        (ix86_mangle_function_version_assembler_name): Likewise.
        (ix86_generate_version_dispatcher_body): Likewise.
        (fold_builtin_cpu): Likewise.
        (get_builtin_code_for_version): Likewise.  Remove extraneous space.
        (ix86_handle_interrupt_attribute): Make the diagnostics easier for
        translators, wrap full type name in %qs.

        PR translation/79999
        * gimplify.c (gimplify_omp_ordered): Reword diagnostics to talk about
        depend clause with source (or sink) modifier.
        * omp-expand.c (expand_omp_ordered_sink): Likewise.

        PR target/89602
        * config/i386/sse.md (avx512f_mov<ssescalarmodelower>_mask,
        *avx512f_load<mode>_mask, avx512f_store<mode>_mask): New define_insns.
        (avx512f_load<mode>_mask): New define_expand.
        * config/i386/i386-builtin.def (__builtin_ia32_loadsd_mask,
        __builtin_ia32_loadss_mask, __builtin_ia32_storesd_mask,
        __builtin_ia32_storess_mask, __builtin_ia32_movesd_mask,
        __builtin_ia32_movess_mask): New builtins.
        * config/i386/avx512fintrin.h (_mm_mask_load_ss, _mm_maskz_load_ss,
        _mm_mask_load_sd, _mm_maskz_load_sd, _mm_mask_move_ss,
        _mm_maskz_move_ss, _mm_mask_move_sd, _mm_maskz_move_sd,
        _mm_mask_store_ss, _mm_mask_store_sd): New intrinsics.

2019-03-07  Martin Jambor  <mjambor@suse.cz>

        PR lto/87525
        * ipa-cp.c (perform_estimation_of_a_value): Account zero time benefit
        for extern inline functions.

2019-03-07  Martin Jambor  <mjambor@suse.cz>

        PR ipa/88235
        * cgraph.h (cgraph_node): New inline method former_thunk_p.
        * cgraph.c (cgraph_node::dump): Dump a note if node is a former thunk.
        (clone_of_p): Treat expanded thunks like thunks, be optimistic if they
        have multiple callees.  At the end check if declarations match as
        opposed to cgraph_nodes.

2019-03-07  Martin Liska  <mliska@suse.cz>

        * cgraph.c (cgraph_node::verify_node): Verify with a neighbour
        which is equivalent to searching for this in clones chain.
        * symtab.c (symtab_node::verify_base): Similarly compare ASM
        names with a neighbour and special case first node in a chain.

2019-01-25  Jason Merrill  <jason@redhat.com>

        PR c++/80916 - spurious "static but not defined" warning.
        * gimple-fold.c (can_refer_decl_in_current_unit_p): Return false
        for an internal symbol with DECL_EXTERNAL.

2019-04-07  Richard Biener  <rguenther@suse.de>

        PR middle-end/89618
        * cfgloopmanip.c (copy_loop_info): Copy forgotten fields.
        * tree-inline.c (copy_loops): Simplify.

2019-03-07  Martin Liska  <mliska@suse.cz>

        * dwarf2out.c (add_AT_vms_delta): Revert function removal.

2019-03-07  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89595
        * tree-ssa-dom.c (dom_opt_dom_walker::optimize_stmt): Take
        stmt iterator as reference, take boolean output parameter to
        indicate whether the stmt was removed and thus the iterator
        already advanced.
        (dom_opt_dom_walker::before_dom_children): Re-iterate over
        stmts created by folding.

2019-03-07  Jakub Jelinek  <jakub@redhat.com>

        PR c++/89585
        * doc/extend.texi (Basic Asm): Document qualifiers are not allowed
        at toplevel.

2019-03-06  Peter Bergner  <bergner@linux.ibm.com>

        PR rtl-optimization/88845
        * config/rs6000/rs6000.c (rs6000_emit_move_si_sf_subreg): Enable during
        LRA.
        * lra.c (remove_scratches_1): New function.
        (remove_scratches): Use it.
        (lra_emit_move): Likewise.

2019-03-06  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/arc/arc-c.def (__ARC_UNALIGNED__): Set it on
        unaligned_access variable.
        * config/arc/arc.c (arc_override_options): Set unaligned access
        default on for HS CPUs.
        * config/arc/arc.h (STRICT_ALIGNMENT): Fix logic.

2019-03-06  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/89577
        * doc/gcov.texi: Prefer to use --coverage.
        * doc/sourcebuild.texi: Likewise.

2019-03-02  Jason Merrill  <jason@redhat.com>

        PR c++/86485 - -Wmaybe-unused with empty class ?:
        * gimplify.c (gimplify_cond_expr): Use INIT_EXPR.

2019-03-05  Jakub Jelinek  <jakub@redhat.com>

        PR target/89587
        * config/rs6000/t-linux (MULTIARCH_DIRNAME): Set to non-empty only
        if_multiarch.

        PR middle-end/89590
        * builtins.c (maybe_emit_free_warning): Punt if free doesn't have
        exactly one argument.

2019-03-05  Jakub Jelinek  <jakub@redhat.com>
            Richard Sandiford  <richard.sandiford@arm.com>

        PR tree-optimization/89570
        * match.pd (vec_cond into cond_op simplification): Don't use
        get_conditional_internal_fn, use as_internal_fn (cond_op).

2019-03-05  Wilco Dijkstra  <wdijkstr@arm.com>

        PR target/89222
        * config/arm/arm.md (movsi): Use targetm.cannot_force_const_mem
        to decide when to split off a non-zero offset from a symbol.
        * config/arm/arm.c (arm_cannot_force_const_mem): Disallow offsets
        in function symbols.

2019-03-05  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89594
        * tree-if-conv.c (pass_if_conversion::execute): Handle
        case where .LOOP_VECTORIZED_FUNCTION was removed.

2019-03-05  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/89560
        * fold-const.c (fold_checksum_tree): Don't use fixed size buffer,
        instead alloca it only when needed with the needed size.

        PR tree-optimization/89570
        * match.pd (vec_cond into cond_op simplification): Guard with
        vectorized_internal_fn_supported_p test and #if GIMPLE.

        PR tree-optimization/89566
        * gimple-ssa-sprintf.c (sprintf_dom_walker::handle_gimple_call):
        Set info.fncode to BUILT_IN_NONE if gimple_call_builtin_p failed.
        Punt if get_user_idx_format succeeds, but idx_format argument is
        not provided or doesn't have pointer type, or if idx_args is above
        number of provided arguments.

2019-03-04  Wilco Dijkstra  <wdijkstr@arm.com>

        PR tree-optimization/89437
        * match.pd: Use lt in sin(atan(x)) and cos(atan(x)) simplifications.

2019-03-04  Richard Biener  <rguenther@suse.de>

        PR middle-end/89572
        * tree-scalar-evolution.c: (get_loop_exit_condition): Use
        safe_dyn_cast.

2019-03-04  Bin Cheng  <bin.cheng@linux.alibaba.com>

        PR tree-optimization/89487
        * tree-loop-distribution.c (has_nonaddressable_dataref_p): New.
        (create_rdg_vertices): Compute has_nonaddressable_dataref_p.
        (distribute_loop): Don't do runtime alias check if there is non-
        addressable data reference.
        * tree-ssa-loop-ivopts.c (may_be_nonaddressable_p): Check if VAR_DECL
        is a register variable.

2019-03-02  Jakub Jelinek  <jakub@redhat.com>

        PR target/89506
        * config/arm/arm.md (cmpsi2_addneg): Use
        trunc_int_for_mode (-INTVAL (...), SImode) instead of -INTVAL (...).
        If operands[2] is 0 or INT_MIN, force use of subs.
        (*compare_scc splitter): Use gen_int_mode.
        (*negscc): Likewise.
        * config/arm/thumb2.md (*thumb2_negscc): Likewise.

2019-03-01  Kito Cheng  <kito.cheng@gmail.com>
            Monk Chiang  <sh.chiang04@gmail.com>

        * common/config/riscv/riscv-common.c: Include sstream.
        (riscv_subset_list::to_string): New.
        (riscv_arch_str): Likewise.
        * config.gcc (riscv*-*-*): Handle --with-riscv-attribute=
        * config.in: Regen.
        * config/riscv/riscv-protos.h (riscv_arch_str): New.
        * config/riscv/riscv.c (INCLUDE_STRING): Defined.
        (riscv_emit_attribute): New.
        (riscv_file_start): Emit attribute if needed.
        (riscv_option_override): Init riscv_emit_attribute_p.
        * config/riscv/riscv.opt (mriscv-attribute): New option.
        * configure.ac (riscv*-*-*): Check binutils is supporting ELF
        * configure: Regen.
        * doc/install.texi: Document --with-riscv-attribute.
        * doc/invoke.texi: Document -mriscv-attribute.

        * common/config/riscv/riscv-common.c:
        Include config/riscv/riscv-protos.h.
        (INCLUDE_STRING): Defined.
        (RISCV_DONT_CARE_VERSION): Defined.
        (riscv_subset_t): Declare.
        (riscv_subset_t::riscv_subset_t): New.
        (riscv_subset_list): Declare.
        (riscv_subset_list::riscv_subset_list): New.
        (riscv_subset_list::~riscv_subset_list): Likewise.
        (riscv_subset_list::parsing_subset_version): Likewise.
        (riscv_subset_list::parse_std_ext): Likewise.
        (riscv_subset_list::parse_sv_or_non_std_ext): Likewise.
        (riscv_subset_list::add): Likewise.
        (riscv_subset_list::lookup): Likewise.
        (riscv_subset_list::xlen): Likewise.
        (riscv_subset_list::parse): Likewise.
        (riscv_supported_std_ext): Likewise.
        (current_subset_list): Likewise.
        (riscv_parse_arch_string): Using riscv_subset_list::parse to
        parse.

2019-03-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.c (rs6000_option_override_internal): If
        rs6000_dejagnu_cpu_index is set, use that to override rs6000_cpu_index.
        * config/rs6000/rs6000.opt (mdejagnu-cpu=): New option.

2019-03-01  Alexander Monakov  <amonakov@ispras.ru>

        PR rtl-optimization/85899
        * haifa-sched.c (find_fallthru_edge_from): Relax assert to account for
        fallthru edges leading to the exit block.

2019-03-01  Tamar Christina  <tamar.christina@arm.com>

        PR target/89517
        * config/aarch64/aarch64-option-extensions.def (fp, simd, crypto, fp16,
        rdma, dotprod, sha2, sha3, sm4, fp16fml, sve): Collapse line.

2019-03-01  Richard Sandiford  <richard.sandiford@arm.com>

        PR tree-optimization/89535
        * tree-vect-stmts.c (vectorizable_call): Record the vector types
        for each operand.  Calculate the fallback choice for mask operands
        and pass it to vect_get_vec_def_for_operand.

2019-03-01  Richard Biener  <rguenther@suse.de>

        PR middle-end/89541
        * tree-ssa-operands.c (add_stmt_operand): CONST_DECL may
        get virtual operands.
        (get_expr_operands): Handle CONST_DECL like other decls.

2019-03-01  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/89503
        * fold-const.c (fold_checksum_tree): Ignore TREE_NO_WARNING bit
        on DECL_P and EXPR_P.

2019-03-01  Richard Biener  <rguenther@suse.de>

        PR middle-end/89497
        * tree-cfgcleanup.h (cleanup_tree_cfg): Add SSA update flags
        argument, defaulted to zero.
        * passes.c (execute_function_todo): Pass down SSA update flags
        to cleanup_tree_cfg.
        * tree-cfgcleanup.c: Include tree-into-ssa.h and tree-cfgcleanup.h.
        (cleanup_tree_cfg_noloop): After cleanup_control_flow_pre update SSA
        form if requested.
        (cleanup_tree_cfg): Get and pass down SSA update flags.

2019-03-01  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/89539
        * dwarf2out.c (output_comdat_type_unit): Add ATTRIBUTE_UNUSED to
        early_lto_debug argument.

2019-02-28  Eric Botcazou  <ebotcazou@adacore.com>

        PR tree-optimization/89536
        * tree-ssa-dom.c (edge_info::derive_equivalences) <BIT_NOT_EXPR>: Test
        only whether bit #0 of the value is 0 instead of the entire value.

2019-02-28  Marek Polacek  <polacek@redhat.com>

        PR c++/87068 - missing diagnostic with fallthrough statement.
        * gimplify.c (expand_FALLTHROUGH_r): If IFN_FALLTHROUGH was found
        at the end of a seq, save its location to walk_stmt_info.
        (expand_FALLTHROUGH): Warn if IFN_FALLTHROUGH is at the end of
        a switch.

2019-02-28  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/88585
        * tree.c (find_atomic_core_type): Move ahead in file.
        (check_base_type): Correctly compare alignments of atomic types.

2019-02-28  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89455
        * config/i386/i386.c (get_builtin_code_for_version): Identify
        Westmere from PCLMUL, instead of AES.

2019-02-28  Jakub Jelinek  <jakub@redhat.com>

        PR target/89434
        * config/arm/arm.md (*subsi3_carryin_compare_const): Use
        trunc_int_for_mode (-INTVAL (...), SImode), just instead of
        -UINTVAL (...).

2019-02-28  Tamar Christina  <tamar.christina@arm.com>

        PR target/88530
        * config/aarch64/aarch64-option-extensions.def: Document it.
        * config/aarch64/driver-aarch64.c (host_detect_local_cpu): Skip feature
        if empty hwcaps.

2019-02-28  Jakub Jelinek  <jakub@redhat.com>

        PR c/89520
        * convert.c (convert_to_real_1, convert_to_integer_1): Punt for
        builtins if they don't have a single scalar floating point argument.
        Formatting fixes.

2019-02-27  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR rtl-optimization/89490
        * varasm.c (get_block_for_section): Bail out for mergeable sections.
        (default_use_anchors_for_symbol_p, output_object_block): Assert the
        block section is not mergeable.

2019-02-27  Jakub Jelinek  <jakub@redhat.com>

        PR target/70341
        * config/arm/arm.md (arm_casesi_internal): New define_expand.  Rename
        old define_insn to ...
        (*arm_casesi_internal): ... this.  Add mode to LABEL_REFs.
        * config/arm/thumb2.md (thumb2_casesi_internal): New define_expand.
        Rename old define_insn to ...
        (*thumb2_casesi_internal): ... this.  Add mode to LABEL_REFs.
        (thumb2_casesi_internal_pic): New define_expand.  Rename old
        define_insn to ...
        (*thumb2_casesi_internal_pic): ... this.  Add mode to LABEL_REFs.
        * config/aarch64/aarch64.md (casesi): Create the casesi_dispatch
        MEM manually here, set MEM_READONLY_P and MEM_NOTRAP_P on it.

2019-02-27  Richard Biener  <rguenther@suse.de>

        PR debug/88878
        * dwarf2out.c (use_debug_types): Disable when in_lto_p.

2019-02-27  Richard Biener  <rguenther@suse.de>

        * passes.c (should_skip_pass_p): Do not skip cgraph-edge
        building.

2019-02-27  Richard Biener  <rguenther@suse.de>

        PR debug/88878
        * dwarf2out.c (output_comdat_type_unit): Add early_lto_debug
        parameter, prefix section name with .gnu.debuglto_ if true.
        (dwarf2out_finish): Pass false to output_comdat_type_unit.
        (dwarf2out_early_finish): Pass true to output_comdat_type_unit.

2019-02-27  Richard Biener  <rguenther@suse.de>

        PR debug/89514
        * dwarf2out.c (size_of_die): Key on AT_ref (a)->comdat_type_p
        rather than on use_debug_types, doing what output_die does.
        (value_format): Likewise.

2019-02-27  Martin Jambor  <mjambor@suse.cz>
            Martin Sebor  <msebor@redhat.com>

        * doc/invoke.texi (Warning Options): Reword description of
        -Wno-absolute-value.

2019-02-27  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/89280
        * tree-cfgcleanup.c (maybe_dead_abnormal_edge_p,
        builtin_setjmp_setup_bb): New functions.
        (cleanup_control_flow_pre): Ignore maybe_dead_abnormal_edge_p edges.
        When visiting __builtin_setjmp_setup block, queue in special
        setjmp_vec vector edges from .ABNORMAL_DISPATCHER to corresponding
        __builtin_setjmp_receiver.  Remove .ABNORMAL_DISPATCHER basic blocks
        from visited after the loop if they don't have any visited successor
        blocks.

2018-02-26  Steve Ellcey  <sellcey@marvell.com>

        * config/aarch64/aarch64.c (aarch64_get_multilib_abi_name):
        New function.
        (TARGET_GET_MULTILIB_ABI_NAME): New macro.

2019-02-26  Jakub Jelinek  <jakub@redhat.com>

        PR c++/89507
        * tree.c (valid_constant_size_p): Deal with size INTEGER_CSTs
        with types other than sizetype/ssizetype.

2019-02-26  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc-opts.h (enum processor_type): Rename to...
        (enum sparc_processor_type): ...this.
        (enum sparc_code_model_type): New enumeration type.
        (enum sparc_memory_model_type): Tweak comments.
        * config/sparc/sparc.opt (mcpu): Adjust to above renaming.
        (mtune): Likewise.
        (mcmodel): Use sparc_code_model enumeration and variable.
        (sparc_code_model): New enumeration.
        (mdebug): Add Undocumented marker.
        * config/sparc/sparc.h (enum cmodel): Delete.
        (sparc_cmodel): Likewise.
        (TARGET_CM_MEDLOW): Adjust to above renaming.
        (TARGET_CM_MEDMID): Likewise.
        (TARGET_CM_MEDANY): Likewise.
        (TARGET_CM_EMBMEDANY): Likewise.
        * config/sparc/sparc.c (sparc_cmodel): Delete.
        (sparc_option_override): Remove string/value mapping support for the
        code model.  Move code and memory model support to after the handling
        of target flags.  Do private machine setup last.
        (sparc_emit_set_symbolic_const64): Use sparc_code_model.
        (sparc_legitimize_reload_address): Likewise.
        (sparc_output_mi_thunk): Likewise.
        * config/sparc/sparc.md (cpu): Adjust comment to above renaming.

2019-02-26  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/89500
        * tree-ssa-strlen.c (stridx_strlenloc): Adjust comment.
        (handle_builtin_strlen): Remove noncst_bound variable.  Always
        optimize strnlen (x, 0) to 0.  Optimize strnlen (x, cst) to
        cst if the first cst bytes starting at x are known to be non-zero,
        even if the string is not zero terminated.  Don't try to modify
        *si for strnlen.  Update strlen_to_stridx only for strlen or if
        we can prove strnlen returns the same value as strlen would.

2019-02-26  Martin Liska  <mliska@suse.cz>

        * alloc-pool.h (struct pool_usage): Remove extra
        print_dash_line.
        * bitmap.h (struct bitmap_usage): Likewise.
        * ggc-common.c (struct ggc_usage): Likewise.
        * mem-stats.h (struct mem_usage): Likewise.
        (mem_alloc_description::dump): Print dash lines
        here and repeat header at the end of a table report.
        It's then more readable.
        * tree-phinodes.c (phinodes_print_statistics): Make
        horizontal alignment.
        * tree-ssanames.c (ssanames_print_statistics): Likewise.
        * vec.c (struct vec_usage): Remove extra print_dash_line.
        * vec.h (vec_safe_grow_cleared): Pass PASS_MEM_STAT.

2019-02-26  Uroš Bizjak  <ubizjak@gmail.com>

        * doc/extend.texi (__builtin_object_size):
        Use @pxref instead of @xref inside parenthesis.
        (__builtin_has_attribute): Add missing comma after @xref.
        (__builtin_object_size): Ditto.
        * doc/md.texi (cond_*{mode}): Use @samp instead of @var around op1[i].

2019-02-26  Jeff Law  <law@redhat.com>

        PR rtl-optimization/87761
        * regcprop.c (copyprop_hardreg_forward_1): Use REG_UNUSED notes to
        detect obviously dead insns and delete them.

2019-02-26  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89505
        * tree-ssa-structalias.c (compute_dependence_clique): Make sure
        to handle restrict pointed-to vars with multiple subvars
        correctly.

2019-02-26  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89489
        * tree-parloops.c (create_loop_fn): Copy over last_clique.

2019-02-26  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-dom.c (edge_info::derive_equivalences) <BIT_IOR_EXPR>: Fix
        and move around comment.
        <BIT_AND_EXPR>: Likewise.
        <BIT_NOT_EXPR>: Add specific handling for boolean types.

2019-02-26  Jakub Jelinek  <jakub@redhat.com>

        PR target/89474
        * config/i386/i386.c (remove_partial_avx_dependency): Call
        df_analyze etc. before creation of the v4sf_const0 pseudo, rather than
        after changing possibly many instructions to use that pseudo.  Fix up
        insertion of v4sf_const0 setter at the start of bb.

2019-02-25  Sandra Loosemore  <sandra@codesourcery.com>

        PR c/80409
        * doc/extend.texi (Variadic Pointer Args): New section.

2019-02-25  Sandra Loosemore  <sandra@codesourcery.com>
            Martin Sebor  <msebor@gmail.com>

        * common.opt (Wattribute-alias): Likewise.
        * doc/invoke.texi (Option Summary): List general form of
        -Wattribute-alias=.  List positive form of -Wmissing-attributes.
        (-Wmissing-attributes): Invert entry, rewrite and correct default.
        Add cross-references.
        (-Wattribute-alias): Rewrite and correct default.  Mention
        considered attributes (same as for -Wmissing-attributes).

2019-02-25  Paul A. Clarke  <pc@us.ibm.com>

        * config/rs6000/emmintrin.h (_mm_cvtpd_epi32): Fix big endian.
        (_mm_cvtpd_ps): Likewise.
        (_mm_cvttpd_epi32): Likewise.

        PR target/89338
        * config/rs6000/xmmintrin.h (_mm_cvtss_f32): Fix type mismatch.
        (_mm_cvt_ss2si): Fix type mismatch and 32-bit.

        PR target/89339
        * config/rs6000/xmmintrin.h (_mm_movemask_pi8): Fix 32-bit.

2019-02-25  Tamar Christina  <tamar.christina@arm.com>

        PR target/88530
        * common/config/aarch64/aarch64-common.c
        (struct aarch64_option_extension): Add is_synthetic.
        (all_extensions): Use it.
        (TARGET_OPTION_INIT_STRUCT): Define hook.
        (struct gcc_targetm_common): Moved to end.
        (all_extensions_by_on): New.
        (opt_ext_cmp, typedef opt_ext): New.
        (aarch64_option_init_struct): New.
        (aarch64_contains_opt): New.
        (aarch64_get_extension_string_for_isa_flags): Output smallest set.
        * config/aarch64/aarch64-option-extensions.def
        (AARCH64_OPT_EXTENSION): Explicitly include AES and SHA2 in crypto.
        (fp, simd, crc, lse, fp16, rcpc, rdma, dotprod, aes, sha2, sha3,
        sm4, fp16fml, sve, profile, rng, memtag, sb, ssbs, predres):
        Set is_synthetic to false.
        (crypto): Set is_synthetic to true.
        * config/aarch64/driver-aarch64.c (AARCH64_OPT_EXTENSION): Add
        SYNTHETIC.

2019-02-25  Tamar Christina  <tamar.christina@arm.com>

        * config/arm/arm_neon.h (vfmlal_low_u32, vfmlsl_low_u32,
        vfmlal_high_u32, vfmlsl_high_u32, vfmlalq_low_u32, vfmlslq_low_u32,
        vfmlalq_high_u32, vfmlslq_high_u32, vfmlal_lane_low_u32,
        vfmlal_lane_high_u32, vfmlalq_laneq_low_u32, vfmlalq_lane_low_u32,
        vfmlal_laneq_low_u32, vfmlalq_laneq_high_u32, vfmlalq_lane_high_u32,
        vfmlal_laneq_high_u32, vfmlsl_lane_low_u32, vfmlsl_lane_high_u32,
        vfmlslq_laneq_low_u32, vfmlslq_lane_low_u32, vfmlsl_laneq_low_u32,
        vfmlslq_laneq_high_u32, vfmlslq_lane_high_u32, vfmlsl_laneq_high_u32):
        Rename ...
        (vfmlal_low_f16, vfmlsl_low_f16, vfmlal_high_f16, vfmlsl_high_f16,
        vfmlalq_low_f16, vfmlslq_low_f16, vfmlalq_high_f16, vfmlslq_high_f16,
        vfmlal_lane_low_f16, vfmlal_lane_high_f16, vfmlalq_laneq_low_f16,
        vfmlalq_lane_low_f16, vfmlal_laneq_low_f16, vfmlalq_laneq_high_f16,
        vfmlalq_lane_high_f16, vfmlal_laneq_high_f16, vfmlsl_lane_low_f16,
        vfmlsl_lane_high_f16, vfmlslq_laneq_low_f16, vfmlslq_lane_low_f16,
        vfmlsl_laneq_low_f16, vfmlslq_laneq_high_f16, vfmlslq_lane_high_f16,
        vfmlsl_laneq_high_f16): ... To this.
        * config/arm/neon.md: Update comments.

2019-02-25  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/arm_neon.h (vfmlal_low_u32, vfmlsl_low_u32,
        vfmlalq_low_u32, vfmlslq_low_u32, vfmlal_high_u32, vfmlsl_high_u32,
        vfmlalq_high_u32, vfmlslq_high_u32, vfmlal_lane_low_u32,
        vfmlsl_lane_low_u32, vfmlal_laneq_low_u32, vfmlsl_laneq_low_u32,
        vfmlalq_lane_low_u32, vfmlslq_lane_low_u32, vfmlalq_laneq_low_u32,
        vfmlslq_laneq_low_u32, vfmlal_lane_high_u32, vfmlsl_lane_high_u32,
        vfmlal_laneq_high_u32, vfmlsl_laneq_high_u32, vfmlalq_lane_high_u32,
        vfmlslq_lane_high_u32, vfmlalq_laneq_high_u32, vfmlslq_laneq_high_u32):
        Rename ...
        (vfmlal_low_f16, vfmlsl_low_f16, vfmlalq_low_f16, vfmlslq_low_f16,
        vfmlal_high_f16, vfmlsl_high_f16, vfmlalq_high_f16, vfmlslq_high_f16,
        vfmlal_lane_low_f16, vfmlsl_lane_low_f16, vfmlal_laneq_low_f16,
        vfmlsl_laneq_low_f16, vfmlalq_lane_low_f16, vfmlslq_lane_low_f16,
        vfmlalq_laneq_low_f16, vfmlslq_laneq_low_f16, vfmlal_lane_high_f16,
        vfmlsl_lane_high_f16, vfmlal_laneq_high_f16, vfmlsl_laneq_high_f16,
        vfmlalq_lane_high_f16, vfmlslq_lane_high_f16, vfmlalq_laneq_high_f16,
        vfmlslq_laneq_high_f16): ... To this.

2019-02-25  Alexander Monakov  <amonakov@ispras.ru>

        PR rtl-optimization/86096
        * df-scan.c (df_mw_compare): Do not check mw_reg fields when
        comparing mw_order values.

2019-02-25  Jakub Jelinek  <jakub@redhat.com>

        PR target/89434
        * config/arm/arm.md (*subsi3_carryin_const): Use
        arm_neg_immediate_operand predicate instead of
        arm_not_immediate_operand, "L" constraint instead of "K" and
        print it using %n2 instead of %B2.
        (*subsi3_carryin_const0): New define_insn.
        (*subsi3_carryin_compare_const): Use const_int_I_operand predicate
        instead of arm_not_operand and "I" constraint instead of "K" and
        print it using %n3 instead of %B2.  Instead of using match_dup 2 add
        another match_operand and in the condition check that it is negation
        of operands[2].
        (*subsi3_carryin_compare_const0): New define_ins.
        (*subdi_di_zesidi): Adjust to use *subsi3_carryin_const0 instead of
        *subsi3_carryin_const.
        (*arm_cmpdi_insn): Fix splitting into *subsi3_carryin_compare_const,
        split into *subsi3_carryin_compare_const0 if the highpart is zero.

        PR target/89438
        * config/arm.vfp.md (*negdf2_vfp): Use
        gen_int_mode (0x80000000, SImode) instead of GEN_INT (0x80000000).
        * config/arm/neon.md (neon_copysignf<mode>): Likewise.

2019-02-24  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/89445
        * simplify-rtx.c (simplify_ternary_operation): Don't use
        simplify_merge_mask on operands that may trap.
        * rtlanal.c (may_trap_p_1): Use FLOAT_MODE_P instead of
        SCALAR_FLOAT_MODE_P checks.  For integral division by zero, if
        second operand is CONST_VECTOR, check if any element could be zero.
        Don't expect traps for VEC_{MERGE,SELECT,CONCAT,DUPLICATE} unless
        their operands can trap.

2019-02-23  Martin Sebor  <msebor@redhat.com>

        * gimple-ssa-sprintf.c (target_strtol): Rename...
        (target_strtohwi): ...to this.  Handle values up to HOST_WIDE_INT_MAX.
        (parse_directive): Adjust to name change.  Use HOST_WIDE_INT_MAX to
        check for range error.

2019-02-23  H.J. Lu  <hongjiu.lu@intel.com>

        PR driver/69471
        * opts-common.c (prune_options): Also prune joined switches
        with Negative and RejectNegative.
        * config/i386/i386.opt (march=): Add Negative(march=).
        (mtune=): Add Negative(mtune=).
        * doc/options.texi: Document Negative used together with Joined
        and RejectNegative.

2019-02-22  Martin Sebor  <msebor@redhat.com>

        * doc/extend.texi (Other Builtins): Add
        __builtin_is_constant_evaluated.

2019-02-22  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/87609
        * tree-cfg.c (gimple_duplicate_bb): Only remap inlined cliques.

2019-02-22  Jeff Law  <law@redhat.com>

        PR rtl-optimization/87761
        * config/mips/mips.md: Add new combiner pattern to recognize
        a bitfield extraction using (ashiftrt (truncate (ashift (...)))).

2019-02-22  Matthew Malcomson  <matthew.malcomson@arm.com>

        PR target/89324
        * config/aarch64/aarch64.md: Use aarch64_general_reg predicate on
        destination register in peepholes generating patterns for ADDS/SUBS.
        (add<mode>3_compare0,
        *addsi3_compare0_uxtw, add<mode>3_compareC,
        add<mode>3_compareV_imm, add<mode>3_compareV,
        *adds_<optab><ALLX:mode>_<GPI:mode>,
        *subs_<optab><ALLX:mode>_<GPI:mode>,
        *adds_<optab><ALLX:mode>_shift_<GPI:mode>,
        *subs_<optab><ALLX:mode>_shift_<GPI:mode>,
        *adds_<optab><mode>_multp2, *subs_<optab><mode>_multp2,
        *sub<mode>3_compare0, *subsi3_compare0_uxtw,
        sub<mode>3_compare1): Allow stack pointer for source register.
        * config/aarch64/predicates.md (aarch64_general_reg): New predicate.

2019-02-22  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/88993
        PR tree-optimization/88853
        * gimple-ssa-sprintf.c (sprintf_dom_walker::call_info::is_file_func):
        New helper.
        (sprintf_dom_walker::call_info::is_string_func): New helper.
        (format_directive): Only issue "may exceed" 4095/INT_MAX warnings
        for formatted string functions.
        (sprintf_dom_walker::handle_gimple_call): Fix a typo in a comment.

2019-02-22  Martin Sebor  <msebor@redhat.com>

        PR c/89425
        * c-parser.c (sizeof_ptr_memacc_comptypes): Avoid warning in
        unreachable subexpressions.

2019-02-22  H.J. Lu  <hongjiu.lu@intel.com>
            Hongtao Liu  <hongtao.liu@intel.com>
            Sunil K Pandey  <sunil.k.pandey@intel.com>

        PR target/87007
        * config/i386/i386-passes.def: Add
        pass_remove_partial_avx_dependency.
        * config/i386/i386-protos.h
        (make_pass_remove_partial_avx_dependency): New.
        * config/i386/i386.c (make_pass_remove_partial_avx_dependency):
        New function.
        (pass_data_remove_partial_avx_dependency): New.
        (pass_remove_partial_avx_dependency): Likewise.
        (make_pass_remove_partial_avx_dependency): Likewise.
        * config/i386/i386.md (avx_partial_xmm_update): New attribute.
        (*extendsfdf2): Add avx_partial_xmm_update.
        (truncdfsf2): Likewise.
        (*float<SWI48:mode><MODEF:mode>2): Likewise.
        (SF/DF conversion splitters): Disabled for TARGET_AVX.

2019-02-22  Aldy Hernandez  <aldyh@redhat.com>

        PR middle-end/85598
        * gimple-ssa-sprintf.c (pass_sprintf_length::execute): Enable loop
        analysis for pass.

2019-02-22  Thiago Macieira  <thiago.macieira@intel.com>

        PR target/89444
        * config/i386/i386.h (PTA_WESTMERE): Remove PTA_AES.
        (PTA_SKYLAKE): Add PTA_AES.
        (PTA_GOLDMONT): Likewise.

2019-02-22  Sudakshina Das  <sudi.das@arm.com>

        * config/aarch64/aarch64.c (aarch64_output_mi_thunk): Add bti
        instruction if enabled.
        (aarch64_override_options): Remove reference to return address key.

2019-02-22  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89440
        * tree-vect-loop.c (vect_create_epilog_for_reduction): Remove
        not necessary assert.

2019-02-22  Thomas Schwinge  <thomas@codesourcery.com>

        PR fortran/72741
        * omp-general.c (oacc_replace_fn_attrib): Mostly split out into...
        (oacc_replace_fn_attrib_attr): ... this new function.
        * omp-general.h (oacc_replace_fn_attrib_attr): New prototype.
        * config/nvptx/nvptx.c (nvptx_goacc_validate_dims_1): Revert workaround.

2019-02-22  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/arm-cpus.in (ares): Rename to...
        (neoverse-n1): ... This.  Add ares as alias.
        * config/arm/arm-tables.opt: Regenerate.
        * config/arm/arm-tune.md: Likewise.
        * doc/invoke.txt (ARM Options): Document neoverse-n1.

2019-02-22  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64-cores.def (neoverse-e1): Define.
        * config/aarch64/aarch64-tune.md: Regenerate.
        * doc/invoke.texi (AArch64 Options): Document neoverse-e1 -mcpu option.

2019-02-22  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.c (ares_tunings): Rename to...
        (neoversen1_tunings): ... This.
        * config/aarch64/aarch64-cores.def (ares): Change tuning to the above.
        (neoverse-n1): New CPU.
        * config/aarch64/aarch64-tune.md: Regenerate.
        * doc/invoke.txt (AArch64 Options): Document neoverse-n1.

2019-02-22  Richard Biener  <rguenther@suse.de>

        PR middle-end/87609
        * cfghooks.h (dependence_hash): New typedef.
        (struct copy_bb_data): New type.
        (cfg_hooks::duplicate_block): Adjust to take a copy_bb_data argument.
        (duplicate_block): Likewise.
        * cfghooks.c (duplicate_block): Pass down copy_bb_data.
        (copy_bbs): Create and pass down copy_bb_data.
        * cfgrtl.c (cfg_layout_duplicate_bb): Adjust.
        (rtl_duplicate_bb): Likewise.
        * tree-cfg.c (gimple_duplicate_bb): If the copy_bb_data arg is not NULL
        remap dependence info.

2019-02-22  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/87609
        * tree-core.h (tree_base): Document special clique values.
        * tree-inline.c (remap_dependence_clique): Do not use the
        special clique value of one.
        (maybe_set_dependence_info): Use clique one.
        (clear_dependence_clique): New callback.
        (compute_dependence_clique): Clear clique one from all refs
        before assigning it (again).

2019-02-21  Martin Sebor  <msebor@redhat.com>

        * doc/extend.texi (__clear_cache): Correct signature.

2019-02-21  Ian Lance Taylor  <iant@golang.org>

        PR go/89170
        * varasm.c (decode_addr_const): Call lookup_constant_def rather
        than output_constant_def.
        (add_constant_to_table): New static function.
        (output_constant_def): Call add_constant_to_table.
        (tree_output_constant_def): Likewise.

2019-02-21  Jakub Jelinek  <jakub@redhat.com>

        PR c++/89285
        * builtins.c (fold_builtin_arith_overflow): If first two args are
        INTEGER_CSTs, set intres and ovfres to constants rather than calls
        to ifn.

2019-02-21  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/87412
        * config/i386/i386.c (ix86_set_indirect_branch_type): Issue an
        error for -mindirect-branch/-mfunction-return with incompatible
        -fcf-protection.

2019-02-21  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/88714
        * constraints.md (q): Remove.
        * config/arm/ldrdstrd.md (*arm_ldrd, *arm_strd): Use rk constraint
        instead of q.

2019-02-21  Martin Jambor  <mjambor@suse.cz>

        PR hsa/89302
        * omp-general.c (omp_extract_for_data): Removed a duplicate call
        to omp_adjust_for_condition, moved NE_EXPR code_cond processing...
        (omp_adjust_for_condition): ...here.  Added necessary parameters.
        * omp-general.h (omp_adjust_for_condition): Updated declaration.
        * omp-grid.c (grid_attempt_target_gridification): Adjust to pass
        proper values to new parameters of omp_adjust_for_condition.

2019-02-20  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/89412
        * expr.c (expand_assignment): If result is a MEM, use change_address
        instead of simplify_gen_subreg.

2019-02-20  Jakub Jelinek  <jakub@redhat.com>
            David Malcolm  <dmalcolm@redhat.com>

        PR middle-end/89091
        * fold-const.c (decode_field_reference): Return NULL_TREE if
        lang_hooks.types.type_for_size returns NULL.  Check it before
        overwriting *exp_.  Use return NULL_TREE instead of return 0.

2019-02-20  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/88074
        PR middle-end/89415
        * toplev.c (do_compile): Double the emin/emax exponents to workaround
        buggy mpc_norm.

2019-02-20  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/89397
        * config/i386/i386.c (ix86_atomic_assign_expand_fenv): Check
        TARGET_SSE in addition to TARGET_SSE_MATH.

        (ix86_excess_precision): Ditto.
        (ix86_float_exceptions_rounding_supported_p): Ditto.
        (use_rsqrt_p): Ditto.
        * config/i386/sse.md (rsqrt<mode>2): Ditto.

2019-02-20  David Malcolm  <dmalcolm@redhat.com>

        PR c/89410
        * diagnostic-show-locus.c (layout::calculate_line_spans): Use
        linenum_arith_t when determining if two adjacent line spans are
        close enough to merge.
        (diagnostic_show_locus): Use linenum_arith_t when iterating over
        lines within each line_span.

2019-02-20  Andre Vieira  <andre.simoesdiasvieira@arm.com>

        PR target/86487
        * lra-constraints.c(uses_hard_regs_p): Fix handling of
        paradoxical SUBREGS.

2019-02-20  Li Jia He  <helijia@linux.ibm.com>

        PR target/88100
        * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin)
        <case ALTIVEC_BUILTIN_VSPLTISB, ALTIVEC_BUILTIN_VSPLTISH,
        ALTIVEC_BUILTIN_VSPLTISW>: Don't convert the operand before
        range checking it.

2019-02-19  Jonathan Wakely  <jwakely@redhat.com>

        * config/gcn/gcn.c (print_operand): Fix typo.

2019-02-19  Richard Biener  <rguenther@suse.de>

        PR middle-end/88074
        * toplev.c (do_compile): Initialize mpfr's exponent range
        based on available float modes.

2019-02-19  Eric Botcazou  <ebotcazou@adacore.com>

        * rtlanal.c (get_initial_register_offset): Fall back to the estimate
        as long as the epilogue isn't completed.

2019-02-18  Martin Sebor  <msebor@redhat.com>

        * doc/cpp.texi (Conditional syntax): Add __has_attribute,
        __has_cpp_attribute, and __has_include.

2019-02-18  Martin Sebor  <msebor@redhat.com>

        * doc/invoke.texi (-Wreturn-type): Correct and expand.

2019-02-18  Martin Sebor  <msebor@redhat.com>

        PR middle-end/89294
        * tree.c (valid_constant_size_p): Avoid assuming size is a constant
        expression.
        * tree.h (cst_size_error): Add the cst_size_not_constant enumerator.

2019-02-18  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89296
        * tree-ssa-loop-ch.c (ch_base::copy_headers): Restrict setting
        of no-warning flag to cases that might emit the bogus warning.

2019-02-18  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/88714
        * config/arm/arm.md (*arm_movdi, *movdf_soft_insn): Use "r" instead of
        "q" constraint.
        * config/arm/vfp.md (*movdi_vfp): Likewise.
        * config/arm/ldrdstrd.md (*arm_ldrd, *arm_strd): Use "r" instead of
        "q" constraint for operands[0].

        PR target/89369
        * config/s390/s390.md (*r<noxa>sbg_<mode>_srl_bitmask,
        *r<noxa>sbg_<mode>_sll, *r<noxa>sbg_<mode>_srl): Don't construct
        pattern in a temporary buffer.
        (*r<noxa>sbg_sidi_srl): Likewise.  Always use 32 as I3 rather
        than 64-operands[2].

        PR target/89361
        * config/s390/s390.c (s390_indirect_branch_attrvalue,
        s390_indirect_branch_settings): Define unconditionally.
        (s390_set_current_function): Likewise, but guard the whole body except
        the s390_indirect_branch_settings call with
        #if S390_USE_TARGET_ATTRIBUTE.
        (TARGET_SET_CURRENT_FUNCTION): Redefine unconditionally.

        * config/s390/s390.md (*<risbg_n>_ior_and_sr_ze,
        *<risbg_n>_<mode>_ior_and_lshiftrt, *<risbg_n>_sidi_ior_and_lshiftrt):
        Use HOST_WIDE_INT_M1U instead of ~(0ULL).
        (*<risbg_n>_and_subregdi_rotr, *<risbg_n>_and_subregdi_rotl): Use
        HOST_WIDE_INT_1U instead of 1ULL.
        (*pre_z10_extzv<mode>, *pre_z10_extv<mode>): Change mask type from int
        to unsigned HOST_WIDE_INT, use HOST_WIDE_INT_1U instead of 1ul.
        (*insv<mode><clobbercc_or_nocc>_appendbitsleft,
        z = (x << c) | (y >> d) splitters): Use HOST_WIDE_INT_1U
        instead of 1UL.
        (*insv<mode>_mem_reg, *insvdi_mem_reghigh): Use HOST_WIDE_INT_1U
        instead of 1ul.

2019-02-18  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/89209
        * tree-sra.c (create_access_replacement): New optional parameter
        reg_tree.  Use it as a type if non-NULL and access type is not of
        a register type.
        (get_repl_default_def_ssa_name): New parameter REG_TYPE, pass it
        to create_access_replacement.
        (sra_modify_assign): Pass LHS type to get_repl_default_def_ssa_name.
        Check lacc is non-NULL before attempting to re-create it on the RHS.

2019-02-18  Martin Liska  <mliska@suse.cz>

        PR ipa/89306
        * cgraph.c (symbol_table::create_edge): Set m_summary_id to -1
        by default.
        (symbol_table::free_edge): Recycle m_summary_id.
        * cgraph.h (get_summary_id): New.
        (symbol_table::release_symbol): Set m_summary_id to -1
        by default.
        (symbol_table::allocate_cgraph_symbol): Recycle m_summary_id.
        * ipa-fnsummary.c (ipa_fn_summary_t): Switch from
        function_summary to fast_function_summary.
        * ipa-fnsummary.h (ipa_fn_summary_t): Likewise.
        * ipa-pure-const.c (class funct_state_summary_t):
        Switch from function_summary to fast_function_summary.
        * ipa-reference.c (class ipa_ref_var_info_summary_t): Likewise.
        (class ipa_ref_opt_summary_t): Switch from function_summary
        to fast_function_summary.
        * symbol-summary.h (class function_summary_base): New class
        that is created from base of former function_summary.
        (function_summary_base::unregister_hooks): New.
        (class function_summary): Inherit from function_summary_base.
        (class call_summary_base): New class
        that is created from base of former call_summary.
        (class call_summary): Inherit from call_summary_base.
        (struct is_same): New.
        (class fast_function_summary): New summary class.
        (class fast_call_summary): New summary class.
        * vec.h (vec_safe_grow_cleared): New function.

2019-02-18  Martin Liska  <mliska@suse.cz>

        * config/i386/i386.c (ix86_get_multilib_abi_name): New function.
        (TARGET_GET_MULTILIB_ABI_NAME): New macro defined.
        * doc/tm.texi: Document new target hook.
        * doc/tm.texi.in: Likewise.
        * target.def: Add new target macro.
        * gcc.c (find_fortran_preinclude_file): Do not search multilib
        suffixes.

2019-02-17  Alan Modra  <amodra@gmail.com>

        PR target/89271
        * config/rs6000/rs6000.md (<bd>_<mode> split): Check for an int
        output reg on add insn.
        (<bd>tf_<mode> split): Likewise.  Match predicates with insn.

2019-02-16  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89372
        * config/i386/sse.md (ssedoublemode): Remove V4HI.
        (PMULHRSW): Likewise.
        (<ssse3_avx2>_pmulhrsw<mode>3): Require TARGET_SSSE3, not
        TARGET_AVX2.
        (ssse3_pmulhrswv4hi3): New expander.

2019-02-16  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/mmx.md (*vec_extractv2si_zext_mem): Doesn't require
        MMX.  Add isa attribute.

2019-02-16  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/66152
        * builtins.h (c_readstr): Declare.
        * builtins.c (c_readstr): Remove forward declaration.  Add
        null_terminated_p argument, if false, read all bytes from the
        string instead of stopping after '\0'.
        * expr.c (string_cst_read_str): New function.
        (store_expr): Use string_cst_read_str instead of
        builtin_strncpy_read_str.  Try to store by pieces the whole
        exp_len first, and only if that fails, split it up into
        store by pieces followed by clear_storage.  Formatting fix.

        * config/i386/i386.md (*movqi_internal): Remove static from
        buf variable.  Use output_asm_insn (buf, operands); return "";
        instead of return buf;.
        * config/i386/sse.md (<sse>_andnot<mode>3<mask_name>,
        *<code><mode>3<mask_name>, *andnot<mode>3, *andnottf3, *<code><mode>3,
        *<code>tf3, <mask_codefor><code><mode>3<mask_name>): Likewise.

2019-02-15  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/linux.h (ASAN_CC1_SPEC): Define.
        (CC1_SPEC): Use GNU_USER_TARGET_CC1_SPEC and ASAN_CC1_SPEC.
        * config/sparc/linux64.h (ASAN_CC1_SPEC): Likewise.
        (CC1_SPEC): Likewise.
        * config/sparc/sparc.c (sparc_asan_shadow_offset): Adjust for 64-bit.

2019-02-15  Eric Botcazou  <ebotcazou@adacore.com>

        * asan.c (asan_emit_stack_protection): Use full-sized mask to align
        the base address on 64-bit strict-alignment platforms.

2019-02-15  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.h (VALID_MMX_REG_MODE): Correct the misplaced ')'.

2019-02-15  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/darwin.h (TARGET_FPMATH_DEFAULT_P): New define.

2019-02-15  Aaron Sawdey  <acsawdey@linux.ibm.com>

        PR rtl-optimization/88308
        * shrink-wrap.c (move_insn_for_shrink_wrap): Fix LABEL_NUSES counts
        on copied instruction.

2019-02-15  Eric Botcazou  <ebotcazou@adacore.com>

        * final.c (insn_current_reference_address): Replace test on JUMP_P
        with test on jump_to_label_p.
        * config/visium/visium-passes.def: New file.
        * config/visium/t-visium (PASSES_EXTRA): Define.
        * config/visium/visium-protos.h (make_pass_visium_reorg): Declare.
        * config/visium/visium.h (TRAMPOLINE_SIZE): Adjust.
        (TRAMPOLINE_ALIGNMENT): Define.
        * config/visium/visium.c (visium_option_override): Do not register
        the machine-specific reorg pass here.
        (visium_trampoline_init): Align the BRA insn on a 64-bit boundary
        for the GR6.
        (output_branch): Adjust threshold for long branch instruction.
        * config/visium/visium.md (cpu): Move around.
        (length): Adjust for the GR6.

2019-02-15  Richard Biener  <rguenther@suse.de>
            Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/89278
        * tree-loop-distribution.c: Include tree-eh.h.
        (generate_memset_builtin, generate_memcpy_builtin): Call
        rewrite_to_non_trapping_overflow on builtin->size before passing it
        to force_gimple_operand_gsi.

2019-02-15  Jakub Jelinek  <jakub@redhat.com>

        PR other/89342
        * optc-save-gen.awk: Handle optimize_fast like optimize_size or
        optimize_debug.
        * opth-gen.awk: Likewise.

2019-02-15  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (TARGET_SUBTARGET64_ISA_DEFAULT):
        Enable MMX, SSE and SSE2 by default.
        * config/i386/i386.c (ix86_option_override_internal): Do not
        explicitly set MMX, SSE and SSE2 flags for TARGET_64BIT here.

2019-02-14  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/89354
        * combine.c (make_extraction): Punt if extraction_mode is narrower
        than len bits.

2019-02-14  Maya Rashish  <coypu@sdf.org>

        * config.gcc (*-*-netbsd*): Add netbsd-d.o.
        * config/netbsd-d.c: New file.
        * config/t-netbsd: Add netbsd-d.o

2018-02-14  Steve Ellcey  <sellcey@marvell.com>

        * config/aarch64/aarch64.c (aarch64_attribute_table): Change
        affects_type_identity to true for aarch64_vector_pcs.
        (aarch64_comp_type_attributes): New function.
        (TARGET_COMP_TYPE_ATTRIBUTES): New macro.

2019-02-14  Tamar Christina  <tamar.christina@arm.com>

        PR target/88850
        * config/arm/iterators.md (ANY64): Add V4HF.

2019-02-14  Martin Liska  <mliska@suse.cz>

        PR rtl-optimization/89242
        * dce.c (delete_unmarked_insns): Call free_dominance_info we
        process a transformation.

2019-02-14  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/89314
        * fold-const.c (fold_binary_loc): Cast strlen argument to
        const char * before dereferencing it.  Formatting fixes.

        PR middle-end/89284
        * passes.def: Swap pass_ubsan and pass_early_warn_uninitialized.

2019-02-13  Ian Lance Taylor  <iant@golang.org>

        * optc-save-gen.awk: Set var_opt_hash for initial optimizations
        and set current index for other optimizations.

2019-02-13  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (vec_set<VI4F_256_512:mode>_0): Use
        nonimmediate_operand as operand 2 predicate.
        (vec_set<VF2_512_256:mode>_0): Ditto.
        (vec_set<VI8_AVX_AVX512F:mode>_0): Ditto.
        (*vec_concatv2si): Remove alternative 2.
        (*vec_concatv4si_0): Use vm constraint for alternative 0.
        (*vec_concatv4si_0): Remove preferred_for_speed attribute.
        (vec_concatv2di): Split alternatives 4,5,6 to ...
        (*vec_concatv2di_0) ... new pattern.

2019-02-13  Wilco Dijkstra  <wdijkstr@arm.com>

        PR target/89190
        * config/arm/arm.c (ldm_stm_operation_p) Set
        addr_reg_in_reglist correctly for first register.
        (load_multiple_sequence): Remove dead base check.
        (gen_ldm_seq): Correctly set write_back for Thumb-1.

2019-02-13  Tamar Christina  <tamar.christina@arm.com>

        PR target/88847
        * config/aarch64/aarch64-sve.md (*pred_mov<mode>, pred_mov<mode>):
        Expose as @aarch64_pred_mov.
        * config/aarch64/aarch64.c (aarch64_classify_address):
        Use expand_insn which legitimizes operands.

2019-02-13  Martin Liska  <mliska@suse.cz>

        * builtins.h (expand_builtin_with_bounds): Remove declaration.
        * calls.c (struct arg_data): Remove special_slot, pointer_arg
        and pointer_offset fields.
        (initialize_argument_information): Remove usage of dead
        fields.
        * cgraph.h (struct cgraph_thunk_info): Remove
        add_pointer_bounds_args.
        * cgraphunit.c (cgraph_node::expand_thunk): Remove usage of dead
        fields.
        (cgraph_node::assemble_thunks_and_aliases): Remove usage of dead
        fields.
        * config/i386/i386.c (ix86_function_arg_advance): Remove
        unrelated comment.
        (struct builtin_isa): Remove leaf_p and nothrow_p fields.
        (def_builtin): Remove usage of dead fields.
        (ix86_add_new_builtins): Likewise.
        * ipa-fnsummary.c (compute_fn_summary): Likewise.
        * ipa-icf.c (sem_function::equals_wpa): Likewise.
        (sem_function::init): Likewise.
        (sem_variable::merge): Likewise.
        * ipa-visibility.c (function_and_variable_visibility): Likewise.
        * ipa.c (symbol_table::remove_unreachable_nodes): Likewise.
        * lto-cgraph.c (lto_output_node): Likewise.
        (lto_output_varpool_node): Likewise.
        (input_node): Likewise.
        (input_varpool_node): Likewise.
        * lto-streamer-out.c (lto_output): Likewise.
        * tree-inline.c (expand_call_inline): Remove usage of
        assign_stmts.
        * tree-inline.h (struct copy_body_data): Likewise.
        * varpool.c (varpool_node::dump): Likewise.

2019-02-13  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/89303
        * tree-ssa-structalias.c (set_uids_in_ptset): Or in vi->is_heap_var
        into pt->vars_contains_escaped_heap instead of setting
        pt->vars_contains_escaped_heap to it.

        PR middle-end/89281
        * optabs.c (prepare_cmp_insn): Use UINTVAL (size) instead of
        INTVAL (size), compare it to GET_MODE_MASK instead of
        1 << GET_MODE_BITSIZE.

        PR target/89290
        * config/i386/predicates.md (x86_64_immediate_operand): Allow
        TLS UNSPECs offsetted by signed 32-bit CONST_INT even with
        -mcmodel=large.

2019-02-13  Martin Liska  <mliska@suse.cz>

        PR lto/88858
        * cfgrtl.c (remove_barriers_from_footer): New function.
        (try_redirect_by_replacing_jump): Use it.
        (cfg_layout_redirect_edge_and_branch): Likewise.

2019-02-13  Xiong Hu Luo  <luoxhu@linux.vnet.ibm.com>

        * config/rs6000/altivec.h (vec_sbox_be, vec_cipher_be,
        vec_cipherlast_be, vec_ncipher_be, vec_ncipherlast_be): New #defines.
        * config/rs6000/crypto.md (CR_vqdi): New define_mode_iterator.
        (crypto_vsbox_<mode>, crypto_<CR_insn>_<mode>): New define_insns.
        * config/rs6000/rs6000-builtin.def (VSBOX_BE): New BU_CRYPTO_1.
        (VCIPHER_BE, VCIPHERLAST_BE, VNCIPHER_BE, VNCIPHERLAST_BE):
        New BU_CRYPTO_2.
        * config/rs6000/rs6000.c (builtin_function_type)
        <CRYPTO_BUILTIN_VSBOX_BE, CRYPTO_BUILTIN_VCIPHER_BE,
        CRYPTO_BUILTIN_VCIPHERLAST_BE, CRYPTO_BUILTIN_VNCIPHER_BE,
        CRYPTO_BUILTIN_VNCIPHERLAST_BE>: New switch options.
        * doc/extend.texi (vec_sbox_be, vec_cipher_be, vec_cipherlast_be,
        vec_ncipher_be, vec_ncipherlast_be): New builtin functions.

2019-02-12  Pat Haugen  <pthaugen@us.ibm.com>

        * doc/invoke.texi (RS/6000 and PowerPC Options): Remove duplicate
        -maltivec. Delete -maltivec=be and -maltivec=le documentation.

2019-02-12  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89229
        * config/i386/i386.md (*movoi_internal_avx): Revert revision
        268678 and revision 268657.
        (*movti_internal): Likewise.

2019-02-12  Ilya Leoshkevich  <iii@linux.ibm.com>

        PR target/89233
        * config/s390/s390.c (s390_decompose_address): Update comment.
        (s390_check_qrst_address): Reject invalid address forms after
        LRA.

2019-02-12  Martin Liska  <mliska@suse.cz>

        PR lto/88876
        * ipa-pure-const.c (propagate_pure_const): Revert hunk as
        we need default values of funct_state for a function that
        is not optimized.

2019-02-12  Eric Botcazou  <ebotcazou@adacore.com>

        * asan.c (asan_expand_mark_ifn): Take into account the alignment of
        the object to pick the size of stores on strict-alignment platforms.

        * config/sparc/sparc.md (*movsi_insn): Minor tweak.
        (*movdi_insn_sp32): Likewise.
        (*movdi_insn_sp64): Likewise.

2019-02-12  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/88677
        * cgraphunit.c (analyze_functions): Clear READONLY flag for external
        types that needs constructiong.
        * tree.h (may_be_aliased): Do not check TYPE_NEEDS_CONSTRUCTING.

2019-02-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89253
        * tree-ssa-loop-split.c (tree_ssa_split_loops): Check we can
        duplicate the loop.

2019-02-11  David Malcolm  <dmalcolm@redhat.com>

        PR lto/88147
        * input.c (selftest::test_line_offset_overflow): New selftest.
        (selftest::input_c_tests): Call it.

2019-02-11  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/88771
        * gimple-ssa-warn-restrict.c (pass_wrestrict::gate): Also enable
        when -Wstringop-overflow is set.
        (builtin_memref::builtin_memref): Adjust excessive upper bound
        only when lower bound is not excessive.
        (maybe_diag_overlap): Detect and diagnose excessive bounds via
        -Wstringop-ovefflow.
        (maybe_diag_offset_bounds): Rename...
        (maybe_diag_access_bounds): ...to this.
        (check_bounds_or_overlap): Adjust for name change above.

2019-02-11  Martin Sebor  <msebor@redhat.com>

        PR c++/87996
        * builtins.c (max_object_size): Move from here...
        * builtins.h (max_object_size): ...and here...
        * tree.c (max_object_size): ...to here...
        * tree.h (max_object_size): ...and here.

2019-02-11  Bill Schmidt  <wschmidt@linux.ibm.com>

        * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Shift-right
        and shift-left vector built-ins need to include a TRUNC_MOD_EXPR
        for correct semantics.

2019-02-11  Alan Modra  <amodra@gmail.com>

        * doc/invoke.texi (man page RS/6000 and PowerPC Options): Mention
        -mlongcall and -mpltseq.
        (RS/6000 and PowerPC Options <-mlongcall>): Mention inline PLT calls.
        (RS/6000 and PowerPC Options <-mpltseq>): Document.
        * config/rs6000/rs6000.h (TARGET_PLTSEQ): Define.
        * config/rs6000/sysv4.opt (mpltseq): New option.
        * config/rs6000/sysv4.h (TARGET_PLTSEQ): Redefine.
        (SUBTARGET_OVERRIDE_OPTIONS): Error if given -mpltseq when assembler
        support is lacking.  Don't allow -mpltseq with -mbss-plt.
        * config/rs6000/linux64.h (SUBSUBTARGET_OVERRIDE_OPTIONS): Warn if
        -mpltseq given for ELFv1.
        * config/rs6000/rs6000.c (rs6000_call_aix): Comment on UNSPEC_PLTSEQ.
        Only use UNSPEC_PLTSEQ for inline PLT calls.
        (rs6000_call_sysv, rs6000_sibcall_sysv): Expand comments.  Only
        use UNSPEC_PLTSEQ for inline PLT calls.
        (rs6000_indirect_call_template_1, rs6000_longcall_ref),
        (rs6000_call_aix, rs6000_call_sysv, rs6000_sibcall_sysv): Replace
        uses of HAVE_AS_PLTSEQ with TARGET_PLTSEQ, simplifying.
        * config/rs6000/rs6000.md (pltseq_tocsave_<mode>),
        (pltseq_plt16_ha_<mode>, pltseq_plt16_lo_<mode>),
        (pltseq_mtctr_<mode>): Likewise.

2019-02-11  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * acinclude.m4 (gcc_AC_INITFINI_ARRAY): Use 8-byte strings with
        Solaris ld.
        * configure: Regenerate.

2019-02-11  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/88714
        * config/arm/ldrdstrd.md (*arm_ldrd, *arm_strd): Use q constraint
        instead of r.

2019-02-11  Hans-Peter Nilsson  <hp@axis.com>

        * function.c (assign_parm_setup_block): Use the stored
        size, not the passed size, when allocating stack-space,
        also for a parameter with alignment larger than
        MAX_SUPPORTED_STACK_ALIGNMENT.

2019-02-11  Martin Liska  <mliska@suse.cz>

        PR ipa/89009
        * ipa-cp.c (build_toporder_info): Remove usage of a param.
        * ipa-inline.c (inline_small_functions): Likewise.
        * ipa-pure-const.c (propagate_pure_const): Likewise.
        (propagate_nothrow): Likewise.
        * ipa-reference.c (propagate): Likewise.
        * ipa-utils.c (struct searchc_env): Remove unused field.
        (searchc): Always search across AVAIL_INTERPOSABLE.
        (ipa_reduced_postorder): Always allow AVAIL_INTERPOSABLE as
        the only called IPA pure const can properly not propagate
        across interposable boundary.
        * ipa-utils.h (ipa_reduced_postorder): Remove param.

2019-02-11  Chung-Ju Wu  <jasonwucj@gmail.com>

        * config/nds32/nds32.md (call_internal, call_value_internal,
        sibcall_internal, sibcall_value_internal): Use SImode for mem rtx.

2019-02-11  Hans-Peter Nilsson  <hp@axis.com>

        * config/cris/cris.c (cris_preferred_minimum_alignment): Fix name
        typo.

2019-02-10  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/constraints.md (Yd): Replace AVX512BW with AVX512DQ
        in comments

2019-02-10  Chung-Ju Wu  <jasonwucj@gmail.com>

        * config.gcc (with_nds32_lib): Set default --with-nds32-lib correctly.

2019-02-10  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/89268
        * tree-if-conv.c (version_loop_for_if_conversion): Push to preds only
        if preds is non-NULL.

2019-02-09  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/89272
        * tree.c (fld_simplified_type_name): Also keep TYPE_DECL for
        polymorphic types.

2019-02-10  Monk Chiang  <sh.chiang04@gmail.com>

        * config/nds32/nds32.md (trap): New pattern.

2019-02-10  Monk Chiang  <sh.chiang04@gmail.com>

        * config/nds32/nds32.c (nds32_dwarf_register_span): Refine register
        dwarf span.

2019-02-10  Chung-Ju Wu  <jasonwucj@gmail.com>

        * config/nds32/nds32-md-auxiliary.c (nds32_spilt_doubleword): Support
        to split POST_INC.

2019-02-09  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-visibility.c (localize_node): Also do not localize
        LDPR_PREVAILING_DEF_IRONLY_EXP.

2019-02-09  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/87957
        * tree.c (fld_simplified_type_name): Use DECL_ASSEMBLER_NAME_SET_P
        instead of type_with_linkage.

2019-02-09  Jan Hubicka  <hubicka@ucw.cz>

        PR ipa/88755
        * params.def (uninlined-function-insns, uninlined-function-time,
        uninlined-thunk-insns, uninlined-thunk-time): Add artificial upper
        bound so we don't get overflows.

2019-02-09  Aaron Sawdey  <acsawdey@linux.ibm.com>

        * config/rs6000/rs6000-string.c (expand_compare_loop,
        expand_block_compare): Insert REG_BR_PROB notes in inline expansion of
        memcmp/strncmp.

2019-02-09  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/89246
        * config/i386/i386.c (ix86_simd_clone_compute_vecsize_and_simdlen):
        If !node->definition and TYPE_ARG_TYPES is non-NULL, use
        TYPE_ARG_TYPES instead of DECL_ARGUMENTS.

2019-02-09  Alan Modra  <amodra@gmail.com>

        PR target/88343
        * config/rs6000/rs6000.c (save_reg_p): Correct calls_eh_return
        case.  Match logic in rs6000_emit_prologue emitting pic_offset_table
        setup.

2019-02-08  Vladimir Makarov  <vmakarov@redhat.com>

        PR middle-end/88560
        * lra-constraints.c (process_alt_operands): Don't increase reject
        for memory when offset memory is required.

2019-02-08  Robin Dapp  <rdapp@linux.ibm.com>

        * config/s390/vector.md: Implement vector copysign.

2019-02-08  H.J. Lu  <hongjiu.lu@intel.com>

        * expr.c (expand_constructor): Correct indentations.

2019-02-08  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89247
        * tree-if-conv.c: Include tree-cfgcleanup.h.
        (version_loop_for_if_conversion): Record LOOP_VECTORIZED call.
        (tree_if_conversion): Pass through predicate vector.
        (pass_if_conversion::execute): Do CFG cleanup and SSA update
        inline, see if any if-converted loops we refrece in
        LOOP_VECTORIZED calls vanished and fixup.
        * tree-if-conv.h (tree_if_conversion): Adjust prototype.

2019-02-08  Ilya Leoshkevich  <iii@linux.ibm.com>

        * config/s390/constraints.md (jdd): New constraint.

2019-02-08  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89229
        * config/i386/i386.md (*movoi_internal_avx): Set mode to XI for
        upper 16 vector registers without TARGET_AVX512VL.
        (*movti_internal): Likewise.

2019-02-08  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/89234
        * except.c (copy_reg_eh_region_note_forward): Return if note_or_insn
        is a NOTE, CODE_LABEL etc. - rtx_insn * other than INSN_P.
        (copy_reg_eh_region_note_backward): Likewise.

2019-02-08  Richard Biener  <rguenther@suse.de>

        PR middle-end/89223
        * tree-data-ref.c (initialize_matrix_A): Fail if constant
        doesn't fit in HWI.
        (analyze_subscript_affine_affine): Handle failure from
        initialize_matrix_A.

2019-02-08  Jakub Jelinek  <jakub@redhat.com>

        * cfganal.c (pre_and_rev_post_order_compute_fn): Use fn instead of
        cfun everywhere.

2019-02-07  David Malcolm  <dmalcolm@redhat.com>

        PR tree-optimization/86637
        PR tree-optimization/89235
        * tree-vect-loop.c (optimize_mask_stores): Add an
        auto_purge_vect_location sentinel to ensure that vect_location is
        purged on exit.
        * tree-vectorizer.c
        (auto_purge_vect_location::~auto_purge_vect_location): New dtor.
        (try_vectorize_loop_1): Add an auto_purge_vect_location sentinel
        to ensure that vect_location is purged on exit.
        (pass_slp_vectorize::execute): Likewise, replacing the manual
        reset.
        * tree-vectorizer.h (class auto_purge_vect_location): New class.

2019-02-07  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/iterators.md (max_opp): New code_attr.
        (USMAX): New code iterator.
        * config/aarch64/predicates.md (aarch64_smin): New predicate.
        (aarch64_smax): Likewise.
        * config/aarch64/aarch64-simd.md (abd<mode>_3): Rename to...
        (*aarch64_<su>abd<mode>_3): ... Change RTL representation to
        MINUS (MAX MIN).

2019-02-07  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89229
        * config/i386/i386.md (*movoi_internal_avx): Set mode to OI
        for TARGET_AVX512VL.
        (*movti_internal): Set mode to TI for TARGET_AVX512VL.

2019-02-07  Andreas Krebbel  <krebbel@linux.ibm.com>

        * config/s390/s390-builtin-types.def: Add new types.
        * config/s390/s390-builtins.def: (s390_vec_xl, s390_vec_xld2)
        (s390_vec_xlw4): Make the memory operand into a const pointer.
        (s390_vec_xld2, s390_vec_xlw4): Add a variant for single precision
        float.
        * config/s390/s390-c.c (s390_expand_overloaded_builtin): Generate
        a new vector type with the alignment of the scalar memory operand.

2019-02-07  Matthew Malcomson  <matthew.malcomson@arm.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/88714
        * config/arm/arm-protos.h (valid_operands_ldrd_strd,
        arm_count_ldrdstrd_insns): New declarations.
        * config/arm/arm.c (mem_ok_for_ldrd_strd): Remove broken handling of
        MINUS.
        (valid_operands_ldrd_strd): New function.
        (arm_count_ldrdstrd_insns): New function.
        * config/arm/ldrdstrd.md: Change peepholes to generate PARALLEL SImode
        sets instead of single DImode set and define new insns to match this.

2019-02-07  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/aarch64-builtins.c (aarch64_fcmla_lane_builtin_data):
        Make it a C initializer.

2019-02-07  Tamar Christina  <tamar.christina@arm.com>

        PR/target 88850
        * config/arm/neon.md (*neon_mov<mode>): Add r -> r case.

2019-02-07  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/neon.md (neon_<sup>dot<vsi2qi>):
        Use neon_dot<q> for type.
        (neon_<sup>dot_lane<vsi2qi>): Likewise.

2019-02-07  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64-simd.md (aarch64_<sur>dot<vsi2qi>):
        Use neon_dot<q> for type.
        (aarch64_<sur>dot_lane<vsi2qi>): Likewise.
        (aarch64_<sur>dot_laneq<vsi2qi>): Likewise.

2019-02-06  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/89225
        * lra-constaints.c (simplify_operand_subreg): Add subreg mode
        sizes check.

2019-02-06  Eric Botcazou  <ebotcazou@adacore.com>

        * config/i386/i386.c (ix86_expand_prologue): Emit a memory blockage
        after restoring registers saved to allocate the frame on Windows.

2019-02-06  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89182
        * graphite.h (cached_scalar_evolution_in_region): Declare.
        * graphite.c (struct seir_cache_key): New.
        (struct sese_scev_hash): Likewise.
        (seir_cache): New global.
        (cached_scalar_evolution_in_region): New function.
        (graphite_transform_loops): Allocate and release seir_cache.
        * graphite-isl-ast-to-gimple.c (get_rename_from_scev): Use
        cached_scalar_evolution_in_region.
        * graphite-scop-detection.c (scop_detection::can_represent_loop):
        Simplify.
        (scop_detection::graphite_can_represent_expr: Use
        cached_scalar_evolution_in_region.
        (scop_detection::stmt_simple_for_scop_p): Likewise.
        (find_params_in_bb): Likewise.
        (gather_bbs::before_dom_children): Likewise.
        * graphite-sese-to-poly.c (create_pw_aff_from_tree): Likewise.
        (add_loop_constraints): Likewise.

2019-02-06  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/89210
        * fold-const-call.c (fold_const_vec_convert): Pass true as last
        operand to new_unary_operation only if both element types are integral
        and it isn't a widening conversion.  Return NULL_TREE if
        new_unary_operation failed.

2019-02-05  Andreas Krebbel  <krebbel@linux.ibm.com>

        PR target/88856
        * config/s390/s390.md: Remove load and test FP splitter.

2019-02-05  Aaron Sawdey  <acsawdey@linux.ibm.com>

        PR target/89112
        * config/rs6000/rs6000-string.c (do_ifelse, expand_cmp_vec_sequence,
        expand_compare_loop, expand_block_compare_gpr,
        expand_strncmp_align_check, expand_strncmp_gpr_sequence): Insert
        REG_BR_PROB notes in inline expansion of memcmp/strncmp. Add
        #include "profile-count.h" and "predict.h" for types and functions
        needed to work with REG_BR_PROB notes.

2019-02-05  Aaron Sawdey  <acsawdey@linux.ibm.com>

        PR target/89112
        * config/rs6000/rs6000.md (<bd>tf_<mode>): Generate a local label
        for the long branch case.

2019-02-05  Jakub Jelinek  <jakub@redhat.com>

        PR target/89188
        * dce.c (delete_unmarked_insns): Don't remove no-op moves if they
        can throw, non-call exceptions are enabled and we can't delete
        dead exceptions or alter cfg.  Set must_clean if
        delete_insn_and_edges returns true, don't set it blindly for calls.
        Assert that delete_unreachable_blocks is called only if can_alter_cfg.

        PR rtl-optimization/89195
        * combine.c (make_extraction): For MEMs, don't extract bytes outside
        of the original MEM.

2019-02-05  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/89000
        * gcov.c (function_summary): Remove argument.
        (file_summary): New function.
        (print_usage): Replace tabs with spaces.
        (generate_results): Use new function file_summary.

2019-02-05  Jakub Jelinek  <jakub@redhat.com>

        PR target/89186
        * optabs.c (prepare_cmp_insn): Pass x and y to
        emit_block_comp_via_libcall rather than XEXP (x, 0) and XEXP (y, 0).

2019-02-05  Richard Biener  <rguenther@suse.de>

        PR middle-end/89150
        * bitmap.h (struct bitmap_obstack): Do not mark GTY.
        (struct bitmap_element): Drop chain_prev so we properly recurse on
        the prev member, supporting tree views.
        (struct bitmap_head): GTY skip the obstack member.

2019-02-04  Alexander Monakov  <amonakov@ispras.ru>

        PR c/88698
        * doc/extend.texi (Vector Extensions): Add an example of using vector
        types together with x86 intrinsics.

2019-02-04  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (rs6000_indirect_call_template_1): Increase
        str[] size to 160, and comment.

2019-02-04  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (rs6000_indirect_call_template_1),
        (rs6000_pltseq_template): Guard output of TLS markers with
        TARGET_TLS_MARKERS.
        (rs6000_longcall_ref, rs6000_call_aix, rs6000_call_sysv),
        (rs6000_sibcall_sysv): Ignore TARGET_TLS_MARKERS when deciding
        to use inline PLT sequences.
        * config/rs6000/rs6000.md (pltseq_tocsave_<mode>),
        (pltseq_plt16_ha_<mode>, pltseq_plt16_lo_<mode>),
        (pltseq_mtctr_<mode>): Don't test TARGET_TLS_MARKERS in predicate.

2019-02-04  Martin Liska  <mliska@suse.cz>

        PR ipa/88985
        * ipa-fnsummary.c (estimate_edge_devirt_benefit): Bail
        out when ipa_fn_summaries does not contain entry for callee.

2019-02-04  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.h: Remove superfluous blank lines.
        * config/sparc/sparc.c (global_offset_table_rtx): Rename into...
        (got_register_rtx): ...this.
        (sparc_got): Adjust to above renaming.
        (sparc_tls_got): Likewise.
        (sparc_delegitimize_address): Likewise.
        (sparc_output_mi_thunk): Likewise.
        (sparc_init_pic_reg): Likewise.
        (save_local_or_in_reg_p): Fix test on the GOT register.
        (USE_HIDDEN_LINKONCE): Move around.
        (get_pc_thunk_name): Likewise.
        (gen_load_pcrel_sym): Likewise.
        (load_got_register): Likewise.

2019-02-04  Kito Cheng  <kito.cheng@gmail.com>

        * config/nds32/linux.h (GLIBC_DYNAMIC_LINKER): Define the naming rule
        of the dynamic linker: "ld-linux-nds32[le|be][f].so.1".

2019-02-04  Chung-Ju Wu  <jasonwucj@gmail.com>

        * config/nds32/nds32.c (nds32_legitimate_address_p): Add TLS model
        into consideration.

2019-02-04  Chung-Ju Wu  <jasonwucj@gmail.com>

        * config.gcc (with_nds32_lib, glibc):
        Remove TARGET_DEFAULT_TLSDESC_TRAMPOLINE=0 setting.
        * config/nds32/linux.h (TARGET_DEFAULT_TLSDESC_TRAMPOLINE): Delete.
        (NDS32_TLSDESC_TRAMPOLINE_SPEC): Delete.

2019-02-03  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/89071
        * config/i386/i386.md (*sqrt<mode>2_sse): Add (v,0) alternative.
        Do not prefer (v,v) alternative for non-AVX targets and (m,v)
        alternative for speed when TARGET_SSE_PARTIAL_REG_DEPENDENCY is set.
        (*rcpsf2_sse): Ditto.
        (*rsqrtsf2_sse): Ditto.
        (sse4_1_round<mode<2): Ditto.

2019-02-03  Richard Biener  <rguenther@suse.de>

        PR debug/87295
        * dwarf2out.c (copy_ancestor_tree): Register non-stubs as
        orig.

2019-02-02  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/87887
        * config/i386/i386.c (ix86_simd_clone_compute_vecsize_and_simdlen):
        Punt with warning on aggregate return or argument types.  Ignore
        type/mode checking for uniform arguments.

2019-02-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * combine.c (try_combine): Do not print "Can't combine" messages unless
        printing failed combination attempts.

2019-02-01  Martin Jambor  <mjambor@suse.cz>

        PR hsa/87863
        * omp-grid.c (grid_mark_variable_segment): Set assembler name of group
        segment and global segment variables before making them static.

2019-02-01  Martin Jambor  <mjambor@suse.cz>

        * omp-grid.c (grid_target_follows_gridifiable_pattern): Guard two
        missed optimization dump with dump_enabled_p.

2019-02-01  Richard Biener  <rguenther@suse.de>

        PR middle-end/88597
        * tree-scalar-evolution.c (analyze_scalar_evolution): Set up
        the instantiate cache.
        (instantiate_scev_binary): Elide second operand procesing
        if equal to the first.
        * tree-chrec.c (chrec_contains_symbols): Add visited set.
        (chrec_contains_undetermined): Likewise.
        (tree_contains_chrecs): Likewise.

2019-02-01  Jan Hubicka  <hubicka@ucw.cz>

        * parms.def (MAX_INLINE_INSNS_SINGLE): Reduce from 400 to 200.

2019-02-01  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/89143
        * wide-int-range.h (wide_int_range_absu): Declare.
        * wide-int-range.cc (wide_int_range_absu): New function.
        * tree-vrp.c (extract_range_from_unary_expr): Handle ABSU_EXPR.

        PR tree-optimization/88107
        * tree-cfg.c (find_outermost_region_in_block): Add ALL argument,
        instead of assertion that eh_region_outermost is non-NULL, if it
        is NULL, set *ALL to true and return NULL.
        (move_sese_region_to_fn): Adjust caller, if all is set, call
        duplicate_eh_regions with NULL region.

2019-02-01  Richard Biener  <rguenth@suse.de>

        PR rtl-optimization/88593
        * mode-switching.c (optimize_mode_switching): Free dominators before
        calling cleanup_cfg.

2019-02-01  Bin Cheng  <bin.cheng@linux.alibaba.com>

        PR tree-optimization/88932
        * tree-predcom.c (try_combine_chains): Get loop bbs in dom order.

2019-01-31  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/89137
        * omp-low.c (lower_omp_task_reductions): Drop redundant test to avoid
        bogus clang warning.

2019-01-31  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/89071
        * config/i386/i386.md (*extendsfdf2): Split out reg->reg
        alternative to avoid partial SSE register stall for TARGET_AVX.
        (truncdfsf2): Ditto.
        (sse4_1_round<mode>2): Ditto.

2018-01-31  Bill Schmidt  <wschmidt@linux.ibm.com>

        PR tree-optimization/89008
        * gimple-ssa-strength-reduction.c (slsr_process_mul): Don't
        process anything of the form X * 0.

2019-01-31  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89135
        * tree-ssa-phiprop.c (pass_phiprop::execute): Skip blocks
        with abnormal preds.

2019-01-31  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/89124
        * ipa-inline.c (sanitize_attrs_match_for_inline_p): Allow inlining
        always_inline callees into no_sanitize_address callers.

2019-01-31  Richard Biener  <rguenther@suse.de>

        PR rtl-optimization/89115
        * lra.c (lra_rtx_hash): Properly hash CONST_INT values.

2019-01-30  Martin Sebor  <msebor@redhat.com>

        PR other/89106
        * doc/extend.texi (cast to a union): Correct and expand.

2019-01-30  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/87246
        * lra-constraints.c (simplify_operand_subreg): Reload memory
        in subreg if the address became invalid.

2019-01-30  Bill Schmidt  <wschmidt@linux.ibm.com>

        PR target/87064
        * config/rs6000/vsx.md (*vsx_reduc_<VEC_reduc_name>_v4sf_scalar):
        Disable for little-endian.

2019-01-30  Richard Biener  <rguenther@suse.de>

        PR rtl-optimization/89115
        * opts.c (default_options_optimization): Reduce
        PARAM_MAX_DSE_ACTIVE_LOCAL_STORES by a factor of 10 at -O1.
        Make PARAM_LOOP_INVARIANT_MAX_BBS_IN_LOOP reduction relative
        to the default.

2019-01-30  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        * config/rs6000/rs6000-c.c (altivec-resolve_overloaded_builtin):
        Change handling of ALTIVEC_BUILTIN_VEC_EXTRACT.  Coerce result to
        type of vector element when vec_extract is implemented by direct
        move.

2019-01-30  Thomas Schwinge  <thomas@codesourcery.com>

        * doc/invoke.texi (C Language Options): List "-fopenacc-dim".

2019-01-30  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89111
        * tree-ssa-loop-im.c (gather_mem_refs_stmt): Restrict
        canonicalization to appropriately sized access types.

2019-01-30  Jakub Jelinek  <jakub@redhat.com>

        PR c++/89105
        * config/i386/i386.c (ix86_warn_parameter_passing_abi): Don't warn
        for arguments to functions that are TU-local and shouldn't be
        referenced by assembly.

2019-01-30  Ulrich Drepper  <drepper@redhat.com>

        * dumpfile.c (opt_info_switch_p_1): Ignore '-' if it appears
        after '='.

2019-01-29  Martin Sebor  <msebor@redhat.com>

        PR c/88956
        * gimple-fold.c (fold_array_ctor_reference): Avoid zero-length arrays.

2019-01-29  Jakub Jelinek  <jakub@redhat.com>

        PR c++/66676
        PR ipa/89104
        * omp-simd-clone.c (simd_clone_clauses_extract)
        <case OMP_CLAUSE_ALIGNED>: Ignore clauses with NULL
        OMP_CLAUSE_ALIGNED_ALIGNMENT.

2019-01-29  Vineet Gupta  <vgupta@synopsys.com>

        * config.gcc: Force .init_array for ARC.

2019-01-29  Richard Biener  <rguenther@suse.de>

        PR debug/87295
        * dwarf2out.c (collect_skeleton_dies): New helper.
        (copy_decls_for_unworthy_types): Call it.
        (build_abbrev_table): Assert we do not try to replace
        DW_AT_signature refs with local refs.

2019-01-28  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/89002
        * gimplify.c (gimplify_omp_for): When adding OMP_CLAUSE_*_GIMPLE_SEQ
        for lastprivate/linear IV, push gimplify context around gimplify_assign
        and, if it needed any temporaries, pop it into a gimple bind around the
        sequence.

2019-01-28  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * common.opt (-Wattribute-alias): Remove "no-" from name.
        Make -Wattribute-alias command line option and
        #pragma GCC diagnostic ignored "-Wattribute-alias" work again.

2019-01-28  Jakub Jelinek  <jakub@redhat.com>

        PR target/89073
        * doc/invoke.texi (-mclwb, -mprfchw, -mrdpid, -mrdseed, -msgx,
        -madx, -mhle, -mavx5124fmaps, -mavx512vnni, -mavx5124vnniw): Document
        x86 ISA options.
        (bmi2): Add missing @opindex.
        * doc/extend.texi (x86 target attribute): Move fma4, lwp, ssse3
        options alphabetically.  Add missing 3dnow, 3dnowa, adx, avx, avx2,
        avx5124fmaps, avx5124vnniw, avx512bitalg, avx512bw, avx512cd,
        avx512dq, avx512er, avx512f, avx512ifma, avx512pf, avx512vbmi,
        avx512vbmi2, avx512vl, avx512vnni, avx512vpopcntdq, bmi, bmi2,
        cldemote, clflushopt, clwb, clzero, crc32, cx16, f16c, fma, fsgsbase,
        fxsr, gfni, hle, lzcnt, movbe, movdir64b, movdiri, mwaitx, pconfig,
        pku, prefetchwt1, prfchw, ptwrite, rdpid, rdrnd, rdseed, rtm, sahf,
        sgx, sha, shstk, tbm, vaes, vpclmulqdq, waitpkg, wbnoinvd, xsave,
        xsavec, xsaveopt and xsaves options.

2019-01-28  Richard Biener  <rguenther@suse.de>

        PR debug/89076
        * dwarf2out.c (gen_subprogram_die): Remove leftover from MPX
        support removal.

2019-01-28  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/88739
        * tree-cfg.c (verify_types_in_gimple_reference): Verify
        BIT_FIELD_REFs only are applied to mode-precision operands
        when they are integral.
        (verify_gimple_assign_ternary): Likewise for BIT_INSERT_EXPR.
        * tree-ssa-sccvn.c (vn_reference_lookup_3): Avoid generating
        BIT_FIELD_REFs of non-mode-precision integral operands.

2019-01-27  Jakub Jelinek  <jakub@redhat.com>

        PR target/87214
        * config/i386/sse.md
        (<mask_codefor>avx512dq_shuf_<shuffletype>64x2_1<mask_name>,
        avx512f_shuf_<shuffletype>64x2_1<mask_name>): Ensure the
        first constants in pairs are multiples of 2.  Formatting fixes.
        (avx512vl_shuf_<shuffletype>32x4_1<mask_name>,
        avx512vl_shuf_<shuffletype>32x4_1<mask_name>): Ensure the
        first constants in each quadruple are multiples of 4.  Formatting fixes.

2019-01-26  Martin Jambor  <mjambor@suse.cz>

        PR ipa/88933
        * tree-inline.c: Include tree-cfgcleanup.h.
        (delete_unreachable_blocks_update_callgraph): Move...
        * tree-cfgcleanup.c (delete_unreachable_blocks_update_callgraph):
        ...here, make externally visible, make second argument bool, adjust
        all callers.
        * tree-cfgcleanup.c: Include cgraph.h.
        * tree-cfgcleanup.h (delete_unreachable_blocks_update_callgraph):
        Declare.
        * ipa-prop.c: Include tree-cfgcleanup.h.
        (ipcp_transform_function): Call
        delete_unreachable_blocks_update_callgraph instead of cleaning uo CFG.

2019-01-25  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/88846
        * ira.c (process_set_for_memref_referenced_p): New.
        (memref_referenced_p): Add new param.  Use
        process_set_for_memref_referenced_p.  Add new switch cases.
        (memref_used_between_p): Pass new arg to memref_referenced_p.

2019-01-25  Richard Earnshaw  <rearnsha@arm.com>

        PR target/88469
        * config/aarch64/aarch64.c (aarch64_function_arg_alignment): Add new
        argument ABI_BREAK.  Set to true if the calculated alignment has
        changed in gcc-9.  Check bit-fields for their base type alignment.
        (aarch64_layout_arg): Warn if argument passing has changed in gcc-9.
        (aarch64_function_arg_boundary): Likewise.
        (aarch64_gimplify_va_arg_expr): Likewise.

2019-01-25  Richard Sandiford  <richard.sandiford@arm.com>

        PR middle-end/89037
        * varasm.c (output_constructor_bitfield): Use wi::extract_uhwi
        instead of accessing TREE_INT_CST_ELT directly.

2019-01-25  Christophe Lyon  <christophe.lyon@linaro.org>

        * doc/sourcebuild.texi (Environment attributes): Add fenv and
        fenv_exceptions description.

2019-01-25  Wilco Dijkstra  <wdijkstr@arm.com>

        PR rtl-optimization/87763
        * config/aarch64/aarch64.c (aarch64_select_cc_mode):
        Allow SUBREG when matching CC_NZmode compare.

2019-01-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89049
        * tree-vect-loop.c (vect_compute_single_scalar_iteration_cost):
        Look at the pattern stmt to determine if the stmt is vectorized.

2019-01-25  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-sve.md (*pred_mov<mode>)
        (pred_mov<mode>): Handle all-register forms using both a new
        alternative and a split.

2019-01-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/86865
        * graphite-scop-detection.c (scop_detection::can_represent_loop):
        Reject non-do-while loops.

2019-01-24  Peter Bergner  <bergner@linux.ibm.com>

        * config/rs6000/altivec.md (build_vector_mask_for_load): Use MEM_P.
        * config/rs6000/constraints.md (Q constraint): Use REG_P.
        * config/rs6000/darwin.h (PREFERRED_RELOAD_CLASS): Use SYMBOL_REF_P.
        * config/rs6000/freebsd64.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P): Use
        SYMBOL_REF_P, CONST_INT_P and CONST_DOUBLE_P.
        * config/rs6000/linux64.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P): Likewise.
        * config/rs6000/predicates.md (altivec_register_operand, vint_operand,
        vsx_register_operand, vsx_reg_sfsubreg_ok, vfloat_operand,
        vlogical_operand, gpc_reg_operand, int_reg_operand,
        int_reg_operand_not_pseudo): Use SUBREG_P and HARD_REGISTER_P.
        (ca_operand, base_reg_operand, htm_spr_reg_operand, cc_reg_operand,
        cc_reg_not_cr0_operand, input_operand): Use SUBREG_P.
        (save_world_operation, restore_world_operation, lmw_operation,
        stmw_operation): Use MEM_P and REG_P.
        (tie_operand): Use MEM_P.
        (vrsave_operation, crsave_operation): Use REG_P.
        (mfcr_operation, mtcrf_operation): Use REG_P and CONST_INT_P.
        (fpr_reg_operand): Use SUBREG_P and HARD_REGISTER_NUM_P.
        (quad_int_reg_operand): Use HARD_REGISTER_NUM_P.
        (call_operand): Use HARD_REGISTER_P.
        (indexed_or_indirect_operand, altivec_indexed_or_indirect_operand):
        Use CONST_INT_P.
        (lwa_operand): Use SUBREG_P, REG_P and CONST_INT_P.
        * config/rs6000/rs6000-p8swap.c (insn_is_load_p, insn_is_store_p,
        quad_aligned_load_p, replace_swapped_aligned_store,
        recombine_lvx_pattern, replace_swapped_aligned_load,
        recombine_stvx_pattern): Use MEM_P.
        (const_load_sequence_p, adjust_vperm, replace_swapped_load_constant):
        Use MEM_P and SYMBOL_REF_P.
        (rtx_is_swappable_p): Use REG_P and CONST_INT_P.
        (insn_is_swappable_p): Use REG_P and MEM_P.
        (insn_is_swap_p, (alignment_mask): Use CONST_INT_P.
        * config/rs6000/rs6000-string.c (expand_block_clear, expand_block_move):
        Use CONST_INT_P.
        * config/rs6000/rs6000.c (rs6000_secondary_reload, rs6000_emit_cmove):
        Use CONST_DOUBLE_P.
        (rs6000_output_move_128bit): Use CONST_DOUBLE_P, CONST_INT_P and
        CONST_WIDE_INT_P.
        (rs6000_legitimize_address): Use CONST_DOUBLE_P, CONST_INT_P,
        CONST_WIDE_INT_P, REG_P and SYMBOL_REF_P.
        (rs6000_emit_move): Use CONST_DOUBLE_P, CONST_INT_P, HARD_REGISTER_P,
        HARD_REGISTER_NUM_P, MEM_P, REG_P, SUBREG_P, SYMBOL_REF_P and
        reg_or_subregno:
        (output_toc): Use CONST_DOUBLE_P, CONST_INT_P and SYMBOL_REF_P.
        (easy_altivec_constant, rs6000_legitimate_offset_address_p,
        rs6000_mode_dependent_address, rs6000_expand_mtfsf_builtin,
        rs6000_expand_set_fpscr_rn_builtin, rs6000_expand_set_fpscr_drn_builtin,
        rs6000_expand_unop_builtin, INT_P, rs6000_generate_compare,
        rs6000_machopic_legitimize_pic_address, rs6000_split_logical_inner,
        rs6000_split_logical_di): Use CONST_INT_P.
        (rs6000_legitimize_reload_address): Use CONST_INT_P, HARD_REGISTER_P,
        REG_P and SYMBOL_REF_P.
        (setup_incoming_varargs, rs6000_rtx_costs): Use CONST_INT_P and MEM_P.
        (print_operand): Use CONST_INT_P, MEM_P and REG_P.
        (virtual_stack_registers_memory_p, rs6000_legitimate_address_p,
        mems_ok_for_quad_peep): Use CONST_INT_P and REG_P.
        (rs6000_secondary_reload_memory): Use CONST_INT_P and SUBREG_P.
        (small_data_operand, print_operand_address): Use CONST_INT_P and
        SYMBOL_REF_P.
        (split_stack_arg_pointer_used_p): Use HARD_REGISTER_P.
        (rs6000_init_hard_regno_mode_ok, direct_move_p):
        Use HARD_REGISTER_NUM_P.
        (rs6000_secondary_reload_gpr): Use HARD_REGISTER_NUM_P and MEM_P.
        (rs6000_secondary_reload_class): Use HARD_REGISTER_NUM_P, REG_P,
        SUBREG_P and SYMBOL_REF_P.
        (register_to_reg_type, rs6000_secondary_reload_inner): Use SUBREG_P
        and HARD_REGISTER_NUM_P.
        (rs6000_adjust_vec_address): Use HARD_REGISTER_NUM_P and
        reg_or_subregno.
        (rs6000_adjust_cost, find_mem_ref): Use MEM_P.
        (macho_lo_sum_memory_operand, rs6000_eliminate_indexed_memrefs): Use
        MEM_P and REG_P.
        (legitimate_indirect_address_p, legitimate_lo_sum_address_p,
        registers_ok_for_quad_peep, rs6000_output_function_epilogue,
        find_addr_reg): Use REG_P.
        (altivec_expand_vec_perm_const): Use REG_P and SUBREG_P.
        (rs6000_emit_le_vsx_move): Use SUBREG_P.
        (offsettable_ok_by_alignment, constant_pool_expr_p,
        legitimate_small_data_p, rs6000_output_dwarf_dtprel,
        rs6000_delegitimize_address, rs6000_const_not_ok_for_debug_p,
        rs6000_cannot_force_const_mem, rs6000_output_addr_const_extra,
        rs6000_assemble_integer, create_TOC_reference,
        rs6000_emit_allocate_stack, rs6000_xcoff_encode_section_info,
        rs6000_call_aix, rs6000_call_aix): Use SYMBOL_REF_P.
        (rs6000_split_vec_extract_var): Use reg_or_subregno.
        * config/rs6000/rtems.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P): Use
        CONST_DOUBLE_P, CONST_INT_P and SYMBOL_REF_P.
        * config/rs6000/sysv4.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P): Likewise.
        * config/rs6000/xcoff.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P): Likewise.
        * config/rs6000/rs6000.h (RS6000_SYMBOL_REF_TLS_P): Use SYMBOL_REF_P.
        (REGNO_OK_FOR_INDEX_P, REGNO_OK_FOR_BASE_P): Use HARD_REGISTER_NUM_P.
        (INT_REG_OK_FOR_INDEX_P, INT_REG_OK_FOR_BASE_P): Use HARD_REGISTER_P.
        (CONSTANT_ADDRESS_P): Use CONST_INT_P and SYMBOL_REF_P.
        * config/rs6000/rs6000.md (define_expands strlensi, mod<mode>3
        and cbranch<mode>4): Use CONST_INT_P.
        (multiple define_splits): Use REG_P and SUBREG_P.
        (define_expands call, call_value): Use MEM_P.
        (define_expands sibcall, sibcall_value): Use CONST_INT_P and  MEM_P.
        (define insn *mtcrfsi): Use CONST_INT_P and REG_P.
        * config/rs6000/vsx.md (*vsx_le_perm_load_<mode>,
        *vsx_le_perm_load_v8hi, *vsx_le_perm_load_v16qi): Use HARD_REGISTER_P
        and HARD_REGISTER_NUM_P.
        (multiple define_splits): Use HARD_REGISTER_NUM_P.

2019-01-24  Uroš Bizjak  <ubizjak@gmail.com>

        PR rtl-optimization/88948
        * rtl.h (prepare_copy_insn): New prototype.
        * gcse.c (prepare_copy_insn): New function, split out from
        process_insert_insn.
        (process_insert_insn): Use prepare_copy_insn.
        * store-motion.c (replace_store_insn): Use prepare_copy_insn
        instead of gen_move_insn.

2019-01-24  Jakub Jelinek  <jakub@redhat.com>

        PR debug/89006
        * config/i386/i386.c (ix86_pic_register_p): Return true for
        UNSPEC_SET_GOT too.

        PR tree-optimization/88964
        * gimple-loop-interchange.cc (loop_cand::analyze_induction_var): Also
        punt if HONOR_SNANS (chrec).

        PR middle-end/89015
        * tree-nested.c (convert_nonlocal_reference_stmt,
        convert_local_reference_stmt, convert_tramp_reference_stmt,
        convert_gimple_call) <case GIMPLE_OMP_TEAMS>: Treat
        gimple_omp_teams_host teams stmts like GIMPLE_OMP_PARALLEL
        or GIMPLE_OMP_TASK.

        PR tree-optimization/89027
        * tree-inline.c (add_clobbers_to_eh_landing_pad): Don't add clobbers
        for "omp simd array" variables.

2019-01-24  Richard Earnshaw  <rearnsha@arm.com>

        PR target/88469
        * profile-count.h (profile_count): On ARM systems using GCC 6/7/8
        force the alignment of m_val.

2019-01-24  Richard Biener  <rguenther@suse.de>

        PR lto/87187
        * tree-streamer-out.c (write_ts_decl_common_tree_pointers):
        When in "legacy" debug mode make sure to reset self-origins.

2019-01-24  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/88994
        * gcov-io.c (mangle_path): Do not allocate a bigger buffer,
        result will be always smaller or equal to the original.
        * gcov.c (mangle_name): Fix else branch where we should
        also copy to PTR and shift the pointer.

2019-01-24  Xiong Hu Luo  <luoxhu@linux.vnet.ibm.com>

        * tree-ssa-dom.c (test_for_singularity): Fix a comment typo.
        * vr-values.c (find_case_label_ranges): Fix a comment typo.

2019-01-23  Xuepeng Guo  <xuepeng.guo@intel.com>

        * common/config/i386/i386-common.c
        (OPTION_MASK_ISA_ENQCMD_SET,
        OPTION_MASK_ISA_ENQCMD_UNSET): New macros.
        (ix86_handle_option): Handle -menqcmd.
        * config.gcc (enqcmdintrin.h): New header file.
        * config/i386/cpuid.h (bit_ENQCMD): New bit.
        * config/i386/driver-i386.c (host_detect_local_cpu): Handle
        -menqcmd.
        * config/i386/i386-builtin-types.def ((INT, PVOID, PCVOID)): New
        function type.
        * config/i386/i386-builtin.def (__builtin_ia32_enqcmd,
        __builtin_ia32_enqcmds): New builtins.
        * config/i386/i386-c.c (__ENQCMD__): New macro.
        * config/i386/i386-option.c (ix86_target_string): Add
        -menqcmd.
        (ix86_valid_target_attribute_inner_p): Likewise.
        * config/i386/i386-expand.c
        (ix86_expand_builtin): Expand IX86_BUILTIN_ENQCMD and
        IX86_BUILTIN_ENQCMDS.
        * config/i386/i386.h (TARGET_ENQCMD): New.
        * config/i386/i386.md (UNSPECV_ENQCMD, UNSPECV_ENQCMDS): New.
        (@enqcmd<enqcmd_sfx>_<mode>): New insn pattern.
        (movdir64b_<mode>): Parameterize to enable share expansion code
        with ENQCMD in function ix86_expand_builtin.
        * config/i386/i386.opt: Add -menqcmd.
        * config/i386/immintrin.h: Include enqcmdintrin.h.
        * config/i386/enqcmdintrin.h: New intrinsic file.
        * doc/invoke.texi: Add -menqcmd.

2019-01-23  Bin Cheng  <bin.cheng@arm.com>
            Steve Ellcey  <sellcey@marvell.com>

        PR target/85711
        * recog.c (address_operand): Return false on wrong mode for address.
        (constrain_operands): Check for mode with 'p' constraint.

2019-01-23  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/88998
        * config/i386/sse.md (sse2_cvtpi2pd): Add SSE alternatives.
        Disparage MMX alternative.
        (sse2_cvtpd2pi): Ditto.
        (sse2_cvttpd2pi): Ditto.

2019-01-23  David Malcolm  <dmalcolm@redhat.com>

        PR driver/89014
        * config/aarch64/driver-aarch64.c (host_detect_local_cpu): Fix
        use-after-free of the result of
        aarch64_get_extension_string_for_isa_flags.

2019-01-23  Jakub Jelinek  <jakub@redhat.com>

        PR c/44715
        * doc/extend.texi: Document break and continue behavior in
        statement expressions.

2019-01-23  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89008
        * tree-ssa-reassoc.c (eliminate_using_constants): For * 0 do
        not leave another stray operand.

2019-01-23  Jakub Jelinek  <jakub@redhat.com>

        * BASE-VER: Bump to 9.0.1.

2019-01-23  Eric Botcazou  <ebotcazou@adacore.com>

        * cgraphunit.c (cgraph_node::expand_thunk): When expanding a GIMPLE
        thunk that returns by reference, use the type of the return object
        of the thunk instead of that of the alias to build the dereference.

2019-01-23  Vineet Gupta  <vgupta@synopsys.com>

        * config/arc/atomic.md: Add operand to DMB instruction.

2019-01-23  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/88964
        * gimple-loop-interchange.cc (loop_cand::analyze_induction_var): Use
        build_zero_cst instead of build_int_cst.  Return false for loop
        invariants which honor signed zeros.

2019-01-22  Segher Boessenkool  <segher@kernel.crashing.org>

        * doc/invoke.texi (-fsplit-paths): This is enabled by default at -O3.

2019-01-22  Jakub Jelinek  <jakub@redhat.com>

        PR target/88965
        * config/rs6000/rs6000.c: Include tree-vrp.h and tree-ssanames.h.
        (rs6000_gimple_fold_builtin): If MEM_REF address doesn't satisfy
        is_gimple_mem_ref_addr predicate, force it into a SSA_NAME first.

        PR middle-end/88968
        * gimplify.c (gimplify_omp_atomic): Handle bitfield atomics with
        non-integral DECL_BIT_FIELD_REPRESENTATIVEs.

        PR target/87064
        * config/rs6000/vsx.md (*vsx_reduc_<VEC_reduc_name>_v2df_scalar):
        Disable for little endian.

2019-01-22  Richard Earnshaw  <rearnsha@arm.com>

        PR target/88469
        * config/arm/arm.c (arm_needs_double_word_align): Check
        DECL_BIT_FIELD_TYPE.

2019-01-22  Hongtao Liu  <hongtao.liu@intel.com>
            H.J. Lu  <hongjiu.lu@intel.com>

        PR target/88909
        * config/i386/i386-builtin.def: Add mask2 to all builtin
        initializations.  Merge ARGS2 and SPECIAL_ARGS2 into ARGS and
        SPECIAL_ARGS.
        * config/i386/i386.c (BDESC): Add mask2 to the definition.
        (BDESC_FIRST): Likewise.
        (define_builtin): Add an argument for mask2.  Updated to handle
        both ix86_isa_flags and ix86_isa_flags2.
        (define_builtin_const): Likewise.
        (define_builtin_pure): Likewise.
        (define_builtin2): Deleted.
        (define_builtin_const2): Likewise.
        (builtin_description): Add a member, mask2.
        (bdesc_*): Add mask2 to builtin initializations.
        (ix86_init_mmx_sse_builtins): Update calls to def_builtin,
        def_builtin_const and def_builtin_pure.  Remove SPECIAL_ARGS2
        support.
        (ix86_get_builtin_func_type): Remove SPECIAL_ARGS2 support.

2019-01-22  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/88954
        * config/i386/i386.c (ix86_force_load_from_GOT_p): Also check
        noplt attribute.

2019-01-22  Richard Earnshaw  <rearnsha@arm.com>

        PR target/88469
        * config/arm/arm.c (arm_needs_doubleword_align): Return 2 if a record's
        alignment is dominated by a bitfield with 64-bit aligned base type.
        (arm_function_arg): Emit a warning if the alignment has changed since
        earlier GCC releases.
        (arm_function_arg_boundary): Likewise.
        (arm_setup_incoming_varargs): Likewise.

2019-01-22  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/88862
        * graphite-scop-detection.c
        (scop_detection::graphite_can_represent_scev): Reject ADDR_EXPR.

2019-01-22  Andrew Stubbs  <ams@codesourcery.com>

        * doc/extend.tex (AMD GCN Function Attributes): New section.
        * doc/install.texi (amdgcn-unknown-amdhsa): New instructions.
        * doc/invoke.texi (AMD GCN Options): New section.
        * doc/md.texi (Constraints for Particular Machines): Add AMD GCN.

2019-01-22  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.c (parc_delegitimize_address): Recognize the GOT
        register and decoded HIGH/LO_SUM combinations for labels in PIC mode.

2019-01-22  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/88044
        * tree-ssa-loop-niter.c (number_of_iterations_cond): If condition
        is false in the first iteration, but !every_iteration, return false
        instead of true with niter->niter zero.

        PR rtl-optimization/88904
        * cfgcleanup.c (thread_jump): Verify cond2 doesn't mention
        any nonequal registers before processing BB_END (b).

        PR target/88905
        * optabs.c (add_equal_note): Add op0_mode argument, use it instead of
        GET_MODE (op0).
        (expand_binop_directly, expand_doubleword_clz,
        expand_doubleword_popcount, expand_ctz, expand_ffs,
        expand_unop_direct, maybe_emit_unop_insn): Adjust callers.

        PR rtl-optimization/49429
        PR target/49454
        PR rtl-optimization/86334
        PR target/88906
        * expr.c (emit_block_move_hints): Move marking of MEM_EXPRs
        addressable from here...
        (emit_block_op_via_libcall): ... to here.

2019-01-22  Richard Biener  <rguenther@suse.de>

        * tree-vect-loop.c (vect_analyze_loop_operations): Use
        auto_vec for cost vector to fix memleak.
        (vectorize_fold_left_reduction): Properly gather SLP defs.
        (vectorizable_comparison): Do not swap operands to properly
        gather SLP defs.

2019-01-22  Alan Modra  <amodra@gmail.com>

        PR target/88614
        * config/rs6000/predicates.md (unspec_tls): Ensure GOT reg
        stays a reg.  Allow a const_int.
        * config/rs6000/rs6000-protos.h (rs6000_output_tlsargs): Declare.
        * config/rs6000/rs6000.h (IS_V4_FP_ARGS): Define.
        (IS_NOMARK_TLSGETADDR): Define.
        * config/rs6000/rs6000.c (edit_tls_call_insn): Delete.
        (rs6000_output_tlsargs): New function.
        (rs6000_legitimize_tls_address): Don't say a !TARGET_TLS_MARKERS
        __tls_get_addr call takes an arg.
        (rs6000_call_sysv): Generate sysv4 secure plt call pattern here..
        * config/rs6000/rs6000.md (call_nonlocal_sysv): ..rather than here,
        delete split..
        (call_value_nonlocal_sysv): ..or here, delete split.
        (tls_gdld_nomark): Delete.
        (call_value_indirect_nonlocal_sysv): Use unspec_tls as operand2
        predicate.  Call rs6000_output_tlsargs.  Adjust length to suit.
        (call_value_nonlocal_sysv): Likewise.
        (call_value_nonlocal_sysv_secure): Likewise.
        (call_value_nonlocal_aix): Likewise.
        (call_value_indirect_aix): Likewise.
        (call_value_indirect_elfv2): Likewise.
        (call_value_local32, call_value_local64): Disable for no-mark tls.
        (call_value_local_aix): Likewise.

2019-01-21  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/88938
        * config/i386/i386.c (ix86_expand_builtin) [case IX86_BUILTIN_BEXTRI32,
        case IX86_BUILTIN_BEXTRI64]: Sanitize operands.

2019-01-21  Michael Ploujnikov  <michael.ploujnikov@oracle.com>

        * hash-map-tests.c (test_map_of_strings_to_int): Show how to use
        string contents as hash_map keys.

2019-01-21  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR c/88928
        * c-warn.c (check_alignment_of_packed_member): Add a boolean parameter
        for rvalue context.  Handle rvalues correctly.  Use min_align_of_type
        instead of TYPE_ALIGN.
        (check_address_or_pointer_of_packed_member): Handle rvalues coorrectly.
        Use min_align_of_type instead of TYPE_ALIGN_UNIT.  Check for NULL
        pointer from TYPE_STUB_DECL.

2019-01-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/88934
        * tree-vect-slp.c (vect_mask_constant_operand_p): Always look
        at the possibly non-constant operand.
        (vect_get_constant_vectors): Adjust.

2019-01-21  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/71659
        * config/i386/adxintrin.h: Just check _IMMINTRIN_H_INCLUDED.
        * config/i386/clflushoptintrin.h: Check _IMMINTRIN_H_INCLUDED
        instead of _X86INTRIN_H_INCLUDED.
        * onfig/i386/clwbintrin.h: Likewise.
        * config/i386/pkuintrin.h: Likewise.
        * config/i386/prfchwintrin.h: Likewise.
        * config/i386/rdseedintrin.h: Likewise.
        * config/i386/wbnoinvdintrin.h: Likewise.
        * config/i386/xsavecintrin.h: Likewise.
        * config/i386/xsavesintrin.h: Likewise.
        * config/i386/fxsrintrin.h: Enable _IMMINTRIN_H_INCLUDED check.
        * config/i386/xsaveintrin.h: Likewise.
        * config/i386/xsaveoptintrin.h: Likewise.
        * config/i386/x86intrin.h: Move "#include" <rdseedintrin.h>,
        <prfchwintrin.h>, <fxsrintrin.h>, <xsaveintrin.h>,
        <xsaveoptintrin.h>, <adxintrin.h>, <clwbintrin.h>,
        <clflushoptintrin.h>, <xsavesintrin.h>, <xsavecintrin.h>,
        <wbnoinvdintrin.h> and <pkuintrin.h> to ...
        * config/i386/immintrin.h: Here.

2019-01-20  Martin Jambor  <mjambor@suse.cz>

        PR ipa/87615
        * ipa-prop.h (struct ipa_func_body_info): Replaced field aa_walked
        with aa_walk_budget.
        * cgraph.h (ipa_polymorphic_call_context::get_dynamic_type): Add
        aa_walk_budget_p parameter.
        * ipa-fnsummary.c (unmodified_parm_1): New parameter fbi.  Limit AA
        walk.  Updated all callers.
        (unmodified_parm): New parameter fbi, pass it to unmodified_parm_1.
        (eliminated_by_inlining_prob): New parameter fbi, pass it on to
        unmodified_parm.
        (will_be_nonconstant_expr_predicate): New parameter fbi, removed
        parameter info.  Extract info from fbi.  Pass fbi to recursive calls
        and to unmodified_parm.
        (phi_result_unknown_predicate): New parameter fbi, removed parameter
        info, updated call to will_be_nonconstant_expr_predicate.
        (param_change_prob): New parameter fbi, limit AA walking.
        (analyze_function_body): Initialize aa_walk_budget in fbi.  Update
        calls to various above functions.
        * ipa-polymorphic-call.c (get_dynamic_type): Add aa_walk_budget_p
        parameter.  Use it to limit AA walking.
        * ipa-prop.c (detect_type_change_from_memory_writes): New parameter
        fbi, limit AA walk.
        (detect_type_change): New parameter fbi, pass it on to
        detect_type_change_from_memory_writes.
        (detect_type_change_ssa): Likewise.
        (aa_overwalked): Removed.
        (parm_preserved_before_stmt_p): Assume fbi is never NULL, stream line
        accordingly, adjust to the neew AA limiting scheme.
        (parm_ref_data_preserved_p): Likewise.
        (ipa_compute_jump_functions_for_edge): Adjust call to
        get_dynamic_type.
        (ipa_analyze_call_uses): Likewise.
        (ipa_analyze_virtual_call_uses): Pass fbi to detect_type_change_ssa.
        (ipa_analyze_node): Initialize aa_walk_budget.
        (ipcp_transform_function): Likewise.
        * tree-ssa-sccvn.c (eliminate_dom_walker::eliminate_stmt): Update call
        to get_dynamic_type.

2019-01-19  Jakub Jelinek  <jakub@redhat.com>

        * config/aarch64/aarch64.c (aarch64_stack_protect_guard): Move
        outside of #if CHECKING_P code.

2019-01-19  Richard Sandiford  <richard.sandiford@arm.com>

        * gimple-loop-versioning.cc (loop_versioning::dump_inner_likelihood):
        New function, split out from...
        (loop_versioning::analyze_stride): ...here.
        (loop_versioning::find_per_loop_multiplication): Use gassign.
        (loop_versioning::analyze_term_using_scevs): Return a success code.
        (loop_versioning::analyze_arbitrary_term): New function.
        (loop_versioning::analyze_address_fragment): Use
        analyze_arbitrary_term if all else fails.

2019-01-18  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/88892
        * config/rs6000/rs6000.md (*movsi_from_df): Allow only register
        operands.

2019-01-18  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/88903
        * tree-vect-stmts.c (vectorizable_shift): Verify we see all
        scalar stmts a SLP shift amount is composed of when detecting
        shifts by scalars.

2019-01-18  Richard Earnshaw  <rearnsha@arm.com>

        PR target/88799
        * config/arm/arm-cpus.in (mp): New feature.
        (sec): New feature.
        (fgroup ARMv7ve): Add mp and sec features.
        (arch armv7-a): Add options to allow mp and sec extensions.
        (cpu generic-armv7-a): Add options to allow mp and sec extensions.
        (cpu cortex-a5, cpu cortex-7, cpu cortex-a9): Add mp and sec
        extenstions to the base architecture.
        (cpu cortex-a8): Add sec extension to the base architecture.
        (cpu marvell-pj4): Add mp and sec extensions to the base architecture.
        * config/arm/t-aprofile (MULTILIB_MATCHES): Map all armv7-a arch
        variants down to the base v7-a varaint.
        * config/arm/t-multilib (v7_a_arch_variants): New variable.
        * doc/invoke.texi (ARM Options): Add +mp and +sec to the list
        of permitted extensions for -march=armv7-a and for
        -mcpu=generic-armv7-a.

2019-01-18  Martin Liska  <mliska@suse.cz>

        * params.def: Fix comment.
        * tree-profile.c (gimple_init_gcov_profiler): Bump function
        name.
        (gimple_gen_ic_func_profiler): Likewise.

2019-01-18  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        * config/aarch64/aarch64-opts.h (enum stack_protector_guard): New
        * config/aarch64/aarch64.c (aarch64_override_options_internal): Handle
        and put in error checks for stack protector guard options.
        (aarch64_stack_protect_guard): New.
        (TARGET_STACK_PROTECT_GUARD): Define.
        * config/aarch64/aarch64.md (UNSPEC_SSP_SYSREG): New.
        (reg_stack_protect_address<mode>): New.
        (stack_protect_set): Adjust for SSP_GLOBAL.
        (stack_protect_test): Likewise.
        * config/aarch64/aarch64.opt (-mstack-protector-guard-reg): New.
        (-mstack-protector-guard): Likewise.
        (-mstack-protector-guard-offset): Likewise.

2019-01-18  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/86214
        * tree-inline.h (struct copy_body_data): Add
        add_clobbers_to_eh_landing_pads member.
        * tree-inline.c (add_clobbers_to_eh_landing_pad): New function.
        (copy_edges_for_bb): Call it if EH edge destination is <
        id->add_clobbers_to_eh_landing_pads.  Fix a comment typo.
        (expand_call_inline): Set id->add_clobbers_to_eh_landing_pads
        if flag_stack_reuse != SR_NONE and clear it afterwards.

2019-01-18  Christophe Lyon  <christophe.lyon@linaro.org>

        PR target/85596
        * doc/install.texi (with-multilib-list): Document for aarch64.

2019-01-18  Jakub Jelinek  <jakub@redhat.com>

        PR target/88734
        * config/arm/arm_neon.h: Fix #pragma GCC target syntax - replace
        (("..."))) with ("...").

2019-01-18  Sebastian Huber  <sebastian.huber@embedded-brains.de>

        * doc/extend.texi (Built-in Functions for Memory Model Aware
        Atomic Operations): Document atomic fetch and nand.

2019-01-18  Martin Liska  <mliska@suse.cz>
            Richard Biener  <rguenther@suse.de>

        PR middle-end/88587
        * cgraph.h (create_version_clone_with_body): Add new argument
        with attributes.
        * cgraphclones.c (cgraph_node::create_version_clone): Add
        DECL_ATTRIBUTES to a newly created decl.  And call
        valid_attribute_p so that proper cl_target_optimization_node
        is set for the newly created declaration.
        * multiple_target.c (create_target_clone): Set DECL_ATTRIBUTES
        for declaration.
        (expand_target_clones): Do not call valid_attribute_p, it must
        be already done.
        * tree-inline.c (copy_decl_for_dup_finish): Reset mode for
        vector types.

2019-01-17  Jakub Jelinek  <jakub@redhat.com>

        PR target/88734
        * config/aarch64/arm_neon.h: Fix #pragma GCC target syntax - replace
        (("..."))) with ("...").  Use arch=armv8.2-a+sha3 instead of
        arch=armv8.2-a+crypto for vsha512hq_u64 etc. intrinsics.

2019-01-17  Martin Sebor  <msebor@redhat.com>

        PR middle-end/88273
        * gimple-ssa-warn-restrict.c (builtin_memref::extend_offset_range):
        Handle anti-ranges the same as no range at all.

2018-01-17  Steve Ellcey  <sellcey@cavium.com>

        * config/aarch64/aarch64.c (cgraph.h): New include.
        (intl.h): New include.
        (supported_simd_type): New function.
        (currently_supported_simd_type): Ditto.
        (aarch64_simd_clone_compute_vecsize_and_simdlen): Ditto.
        (aarch64_simd_clone_adjust): Ditto.
        (aarch64_simd_clone_usable): Ditto.
        (TARGET_SIMD_CLONE_COMPUTE_VECSIZE_AND_SIMDLEN): New macro.
        (TARGET_SIMD_CLONE_ADJUST): Ditto.
        (TARGET_SIMD_CLONE_USABLE): Ditto.
        * config/i386/i386.c (ix86_simd_clone_adjust): Add definition check.
        * omp-simd-clone.c (expand_simd_clones): Add targetm.simd_clone.adjust
        call.

2019-01-17  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/88800
        * gimple-fold.c (gimple_fold_builtin_memory_op): Avoid checking
        NO_WARNING bit here.  Avoid folding out-of-bounds calls.
        * gimple-ssa-warn-restrict.c (maybe_diag_offset_bounds): Remove
        redundant argument.  Add new argument and issue diagnostics under
        its control.  Detect out-of-bounds access even with warnings
        disabled.
        (check_bounds_or_overlap): Change return type.  Add argument.
        (wrestrict_dom_walker::check_call): Adjust.
        * gimple-ssa-warn-restrict.h (check_bounds_or_overlap): Add argument.
        * tree-ssa-strlen.c (handle_builtin_strcpy): Adjust to change in
        check_bounds_or_overlap's return value.
        (handle_builtin_stxncpy): Same.
        (handle_builtin_strcat): Same.

2019-01-17  Andrew Stubbs  <ams@codesourcery.com>
            Kwok Cheung Yeung  <kcy@codesourcery.com>
            Julian Brown  <julian@codesourcery.com>
            Tom de Vries  <tom@codesourcery.com>

        * doc/sourcebuild.texi: Document dg-add-options sqrt_insn.

2019-01-17  Andrew Stubbs  <ams@codesourcery.com>

        * doc/sourcebuild.texi: Document dg-require-effective-target
        llvm_binutils and offload_gcn.

2019-01-17  Andrew Stubbs  <ams@codesourcery.com>
            Kwok Cheung Yeung  <kcy@codesourcery.com>
            Julian Brown  <julian@codesourcery.com>
            Tom de Vries  <tom@codesourcery.com>

        * doc/sourcebuild.texi: Document dg-required-effective-target
        exceptions.

2019-01-17  Andrew Stubbs  <ams@codesourcery.com>
            Kwok Cheung Yeung  <kcy@codesourcery.com>
            Julian Brown  <julian@codesourcery.com>
            Tom de Vries  <tom@codesourcery.com>
            Jan Hubicka  <hubicka@ucw.cz>
            Martin Jambor  <mjambor@suse.cz>

        * config.gcc: Add amdgcn*-*-amdhsa configuration.
        * configure.ac: Check for dlopen.
        * configure: Regenerate.

2019-01-17  Andrew Stubbs  <ams@codesourcery.com>
            Kwok Cheung Yeung  <kcy@codesourcery.com>
            Julian Brown  <julian@codesourcery.com>
            Tom de Vries  <tom@codesourcery.com>
            Jan Hubicka  <hubicka@ucw.cz>
            Martin Jambor  <mjambor@suse.cz>

        * common/config/gcn/gcn-common.c: New file.
        * config/gcn/driver-gcn.c: New file.
        * config/gcn/gcn-builtins.def: New file.
        * config/gcn/gcn-hsa.h: New file.
        * config/gcn/gcn-modes.def: New file.
        * config/gcn/gcn-opts.h: New file.
        * config/gcn/gcn-passes.def: New file.
        * config/gcn/gcn-protos.h: New file.
        * config/gcn/gcn-run.c: New file.
        * config/gcn/gcn-tree.c: New file.
        * config/gcn/gcn.c: New file.
        * config/gcn/gcn.h: New file.
        * config/gcn/gcn.opt: New file.
        * config/gcn/t-gcn-hsa: New file.

2019-01-17  Andrew Stubbs  <ams@codesourcery.com>
            Kwok Cheung Yeung  <kcy@codesourcery.com>
            Julian Brown  <julian@codesourcery.com>
            Tom de Vries  <tom@codesourcery.com>
            Jan Hubicka  <hubicka@ucw.cz>
            Martin Jambor  <mjambor@suse.cz>

        * config/gcn/constraints.md: New file.
        * config/gcn/gcn-valu.md: New file.
        * config/gcn/gcn.md: New file.
        * config/gcn/predicates.md: New file.

2019-01-17  Eric Botcazou  <ebotcazou@adacore.com>

        * gimple-ssa-isolate-paths.c (stmt_uses_name_in_undefined_way): Replace
        flag_non_call_exceptions with cfun->can_throw_non_call_exceptions.
        (stmt_uses_0_or_null_in_undefined_way): Likewise.
        * tree-ssa-alias.c (same_addr_size_stores_p): Likewise.

2019-01-17  Tamar Christina  <tamar.christina@arm.com>

        PR target/88851
        * config/aarch64/aarch64.md (STACK_CLASH_SVE_CFA_REGNUM): New.
        * config/aarch64/aarch64.c (aarch64_allocate_and_probe_stack_space): Use
        it and document registers.

2019-01-17  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.c (ares_tunings): Define.
        * config/aarch64/aarch64-cores.def (ares): Use the above.

2019-01-17  Wei Xiao  <wei3.xiao@intel.com>

        PR target/88794
        Revert:
        2018-11-06  Wei Xiao  <wei3.xiao@intel.com>

        * config/i386/avx512fintrin.h: Update VFIXUPIMM* intrinsics.
        (_mm512_fixupimm_round_pd): Update parameters and builtin.
        (_mm512_maskz_fixupimm_round_pd): Ditto.
        (_mm512_fixupimm_round_ps): Ditto.
        (_mm512_maskz_fixupimm_round_ps): Ditto.
        (_mm_fixupimm_round_sd): Ditto.
        (_mm_maskz_fixupimm_round_sd): Ditto.
        (_mm_fixupimm_round_ss): Ditto.
        (_mm_maskz_fixupimm_round_ss): Ditto.
        (_mm512_fixupimm_pd): Ditto.
        (_mm512_maskz_fixupimm_pd): Ditto.
        (_mm512_fixupimm_ps): Ditto.
        (_mm512_maskz_fixupimm_ps): Ditto.
        (_mm_fixupimm_sd): Ditto.
        (_mm_maskz_fixupimm_sd): Ditto.
        (_mm_fixupimm_ss): Ditto.
        (_mm_maskz_fixupimm_ss): Ditto.
        (_mm512_mask_fixupimm_round_pd): Update builtin.
        (_mm512_mask_fixupimm_round_ps): Ditto.
        (_mm_mask_fixupimm_round_sd): Ditto.
        (_mm_mask_fixupimm_round_ss): Ditto.
        (_mm512_mask_fixupimm_pd): Ditto.
        (_mm512_mask_fixupimm_ps): Ditto.
        (_mm_mask_fixupimm_sd): Ditto.
        (_mm_mask_fixupimm_ss): Ditto.
        * config/i386/avx512vlintrin.h:
        (_mm256_fixupimm_pd): Update parameters and builtin.
        (_mm256_maskz_fixupimm_pd): Ditto.
        (_mm256_fixupimm_ps): Ditto.
        (_mm256_maskz_fixupimm_ps): Ditto.
        (_mm_fixupimm_pd): Ditto.
        (_mm_maskz_fixupimm_pd): Ditto.
        (_mm_fixupimm_ps): Ditto.
        (_mm_maskz_fixupimm_ps): Ditto.
        (_mm256_mask_fixupimm_pd): Update builtin.
        (_mm256_mask_fixupimm_ps): Ditto.
        (_mm_mask_fixupimm_pd): Ditto.
        (_mm_mask_fixupimm_ps): Ditto.
        * config/i386/i386-builtin-types.def: Add new types and remove
        useless ones.
        * config/i386/i386-builtin.def: Update builtin definitions.
        * config/i386/i386.c: Handle new builtin types and remove useless ones.
        * config/i386/sse.md: Update VFIXUPIMM* patterns.
        (<avx512>_fixupimm<mode>_maskz<round_saeonly_expand_name>): Update.
        (<avx512>_fixupimm<mode><sd_maskz_name><round_saeonly_name>): Update.
        (<avx512>_fixupimm<mode>_mask<round_saeonly_name>): Update.
        (avx512f_sfixupimm<mode>_maskz<round_saeonly_expand_name>): Update.
        (avx512f_sfixupimm<mode><sd_maskz_name><round_saeonly_name>): Update.
        (avx512f_sfixupimm<mode>_mask<round_saeonly_name>): Update.
        * config/i386/subst.md:
        (round_saeonly_sd_mask_operand4): Add new subst_attr.
        (round_saeonly_sd_mask_op4): Ditto.
        (round_saeonly_expand_operand5): Ditto.
        (round_saeonly_expand): Update.

2019-01-17  Wei Xiao  <wei3.xiao@intel.com>

        PR target/88794
        Revert:
        2018-11-12  Wei Xiao  <wei3.xiao@intel.com>

        * config/i386/sse.md: Combine VFIXUPIMM* patterns
        (<avx512>_fixupimm<mode>_maskz<round_saeonly_expand_name>): Update.
        (<avx512>_fixupimm<mode><sd_maskz_name><round_saeonly_name>): Update.
        (<avx512>_fixupimm<mode>_mask<round_saeonly_name>): Remove.
        (avx512f_sfixupimm<mode>_maskz<round_saeonly_expand_name>): Update.
        (avx512f_sfixupimm<mode><sd_maskz_name><round_saeonly_name>): Update.
        (avx512f_sfixupimm<mode>_mask<round_saeonly_name>): Remove.

2019-01-17  Wei Xiao  <wei3.xiao@intel.com>

        PR target/88794
        Revert:
        2018-12-15  Jakub Jelinek  <jakub@redhat.com>

        PR target/88489
        * config/i386/sse.md (UNSPEC_SFIXUPIMM): New unspec enumerator.
        (avx512f_sfixupimm<mode><mask_name><round_saeonly_name>): Use it
        instead of UNSPEC_FIXUPIMM.

2019-01-17  Richard Biener  <rguenther@suse.de>

        PR lto/86736
        * dwarf2out.c (want_pubnames): Never generate pubnames sections
        and friends for the LTO part of debug info.

2019-01-17  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/86214
        * cfgexpand.c (add_stack_var_conflict): Don't add any conflicts
        if x == y.

        PR rtl-optimization/88870
        * dce.c (deletable_insn_p): Never delete const/pure calls that can
        throw if we can't alter the cfg or delete dead exceptions.
        (mark_insn): Don't call find_call_stack_args for such calls.

2019-01-17  Kewen Lin  <linkw@gcc.gnu.org>

        * doc/extend.texi: Add four new prototypes for vec_ld and seven new
        prototypes for vec_st.
        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Add entries
        for scalar address type variants of altivec_vec_ld/altivec_vec_st,
        mainly on signed/unsigned long long and double.

2019-01-16  David Malcolm  <dmalcolm@redhat.com>

        PR target/88861
        * combine.c (delete_noop_moves): Convert to "bool" return,
        returning true if any edges are eliminated.
        (combine_instructions): Also return true if delete_noop_moves
        returns true.

2019-01-16  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/aarch64-builtins.c (aarch64_simd_expand_args): Use
        correct max nunits for endian swap.
        (aarch64_expand_fcmla_builtin): Correct subreg code.
        * config/aarch64/aarch64-simd.md (aarch64_fcmla_lane<rot><mode>,
        aarch64_fcmla_laneq<rot>v4hf, aarch64_fcmlaq_lane<rot><mode>): Correct
        lane endianness.

2019-01-16  Uroš Bizjak  <ubizjak@gmail.com>

        * config/alpha/alpha.c (alpha_gimplify_va_arg):
        Handle split indirect COMPLEX_TYPE arguments.

2019-01-16  Richard Earnshaw  <rearnsha@arm.com>

        PR target/86891
        * config/aarch64/aarch64-modes.def: Add comment about how the carry
        bit is set by add and compare.
        (CC_ADC): New CC_MODE.
        * config/aarch64/aarch64.c (aarch64_select_cc_mode): Use variables
        to cache the code and mode of X.  Adjust the shape of a CC_Cmode
        comparison.  Add detection for CC_ADCmode.
        (aarch64_get_condition_code_1): Update code support for CC_Cmode.  Add
        CC_ADCmode.
        * config/aarch64/aarch64.md (uaddv<mode>4): Use LTU with CCmode.
        (uaddvti4): Comparison result is in CC_ADCmode and the condition is GEU.
        (add<mode>3_compareC_cconly_imm): Delete.  Merge into...
        (add<mode>3_compareC_cconly): ... this.  Restructure the comparison
        to eliminate the need for zero-extending the operands.
        (add<mode>3_compareC_imm): Delete.  Merge into ...
        (add<mode>3_compareC): ... this.  Restructure the comparison to
        eliminate the need for zero-extending the operands.
        (add<mode>3_carryin): Use LTU for the overflow detection.
        (add<mode>3_carryinC): Use CC_ADCmode for the result of the carry out.
        Reexpress comparison for overflow.
        (add<mode>3_carryinC_zero): Update for change to add<mode>3_carryinC.
        (add<mode>3_carryinC): Likewise.
        (add<mode>3_carryinV): Use LTU for carry between partials.
        * config/aarch64/predicates.md (aarch64_carry_operation): Update
        handling of CC_Cmode and add CC_ADCmode.
        (aarch64_borrow_operation): Likewise.

2019-01-16  Tamar Christina  <tamar.christina@arm.com>

        * config/arm/arm-protos.h (neon_vcmla_lane_prepare_operands):
        Remove patternmode.
        * config/arm/arm.c (neon_vcmla_lane_prepare_operands): Likewise.
        * config/arm/neon.md (neon_vcmla_lane<rot><mode>,
        neon_vcmla_laneq<rot><mode>, neon_vcmlaq_lane<rot><mode>):
        Remove endianness conversion.

2019-01-16  Martin Liska  <mliska@suse.cz>

        * Makefile.in: Set TOOL_INCLUDE_DIR and NATIVE_SYSTEM_HEADER_DIR
        for GCC driver.
        * config/gnu-user.h (TARGET_F951_OPTIONS): Add 'finclude%s/' as
        a new argument.
        * gcc.c (add_sysrooted_hdrs_prefix): New function.
        (path_prefix_reset): Move up in the source file.
        (find_fortran_preinclude_file): Make complex search for the
        fortran header files.

2019-01-15  Nikhil Benesch  <nikhil.benesch@gmail.com>

        * godump.c (go_output_typedef): When outputting a typedef, refer
        to the underlying type by its name and not its structure.

2019-01-15  David Malcolm  <dmalcolm@redhat.com>

        PR c++/88795
        * tree.c (build_function_type): Assert that arg_types is not
        error_mark_node.

2019-01-15  Richard Sandiford  <richard.sandiford@arm.com>

        PR inline-asm/52813
        * doc/extend.texi: Document that listing the stack pointer in the
        clobber list of an asm is a deprecated feature.
        * common.opt (Wdeprecated): Moved from c-family/c.opt.
        * cfgexpand.c (asm_clobber_reg_is_valid): Issue a -Wdeprecated
        warning instead of an error for clobbers of the stack pointer.
        Add a note explaining why.

2019-01-15  Richard Biener  <rguenther@suse.de>

        PR debug/88046
        * dwarf2out.c (gen_member_die): Do not generate inheritance
        DIEs late.

2019-01-15  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/88855
        * tree-if-conv.c (combine_blocks): Collect
        SSA_NAME_OCCURS_IN_ABNORMAL_PHI from propagated out virtuals.

2019-01-15  Tom de Vries  <tdevries@suse.de>

        PR target/80547
        * config/nvptx/nvptx.c (nvptx_goacc_reduction_init): Handle
        lhs == NULL_TREE for gang-level reduction.

2019-01-15  Richard Biener  <rguenther@suse.de>
            Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR ipa/88788
        * ipa-pure-const.c (malloc_candidate_p_1): Add parameter visited and
        return true if SSA_NAME is already marked in visited bitmap.
        (malloc_candidate_p): Pass visited to malloc_candidate_p_1.

2019-01-15  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/88775
        * match.pd (cmp (convert1?@2 addr@0) (convert2? addr@1)): Optimize
        equal == 0 equality pointer comparisons some more if compared in
        integral types and either one points to an automatic var and the
        other to a global, or we can prove at least one points to the middle
        or both point to start or both point to end.

2019-01-14  Andi Kleen  <ak@linux.intel.com>

        * Makefile.in: Lower autofdo sampling rate by 10x.
        * Makefile.tpl: Dito.

2019-01-14  Tom Honermann  <tom@honermann.net>

        * defaults.h: Define CHAR8_TYPE.

2019-01-14  Martin Sebor  <msebor@redhat.com>

        PR target/88638
        * doc/extend.texi (Darwin Format Checks): Clarify.

2019-01-14  Richard Biener  <rguenther@suse.de>

        * genmatch.c (dt_simplify::gen_1): Change dumping dependent on
        whether we are in (simplify ...) or (match ...) context.

2019-01-14  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/88796
        * emit-rtl.h (struct rtl_data): Add stack_protect_guard_decl field.
        * cfgexpand.c (stack_protect_prologue): Initialize
        crtl->stack_protect_guard_decl.
        * function.c (stack_protect_epilogue): Use it instead of calling
        targetm.stack_protect_guard again.
        * dse.c (check_mem_read_rtx): Ignore MEM_VOLATILE_P reads from
        MEMs with MEM_EXPR equal to crtl->stack_protect_guard or
        crtl->stack_protect_guard_decl.
        * config/i386/i386.c (ix86_stack_protect_guard): Set TREE_THIS_VOLATILE
        on the returned MEM_EXPR.

2019-01-12  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (nvptx_goacc_validate_dims_1): Alow setting
        vector length using -fopenacc-dim.

2019-01-12  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (nvptx_goacc_validate_dims): Take larger vector
        lengths into account.

2019-01-12  Svante Signell  <svante.signell@gmail.com>

        * config/i386/gnu.h (TARGET_THREAD_SSP_OFFSET): Define.
        (TARGET_CAN_SPLIT_STACK): Define.
        (TARGET_THREAD_SPLIT_STACK_OFFSET): Define.

2019-01-05  Jan Hubicka  <hubicka@ucw.cz>

        * params.def (inline-unit-growth): Set to 40.

2019-01-12  Jakub Jelinek  <jakub@redhat.com>

        * tree-ssa-loop-ivopts.c (find_inv_vars): Fix a comment typo.

2019-01-12  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (nvptx_goacc_validate_dims_1): In offloading
        region calling vector-partitionable routine, set default_vector_length
        to WARP_SIZE.

2019-01-12  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (nvptx_goacc_validate_dims_1): Add an use new
        variable default_vector_length.

2019-01-12  Tom de Vries  <tdevries@suse.de>

        PR middle-end/88703
        * config/nvptx/nvptx.c (nvptx_goacc_validate_dims_1): Apply defaults
        from oacc_default_dims, as oacc_validate_dims would do it, and apply
        dimensions limits.

2019-01-12  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (nvptx_goacc_validate_dims_1)
        (nvptx_goacc_validate_dims): Add used parameter.
        * doc/tm.texi: Regenerate.
        * omp-offload.c (oacc_parse_default_dims, oacc_validate_dims): Add
        argument to call to targetm.goacc.validate_dims.
        (default_goacc_validate_dims): Add used
        parameter.
        * target.def (validate_dims): Add used parameter in DEFHOOK.
        * targhooks.h (default_goacc_validate_dims): Add used parameter.

2019-01-11  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/85956
        PR lto/88733
        * tree-inline.h (struct copy_body_data): Add adjust_array_error_bounds
        field.
        * tree-inline.c (remap_type_1): Formatting fix.  If TYPE_MAX_VALUE of
        ARRAY_TYPE's TYPE_DOMAIN is newly error_mark_node, replace it with
        a dummy "omp dummy var" variable if id->adjust_array_error_bounds.
        * omp-low.c (new_omp_context): Set cb.adjust_array_error_bounds.

2019-01-11  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/87305
        * lra-assigns.c
        (setup_live_pseudos_and_spill_after_risky_transforms): Add code
        for little endian pseudos used as paradoxical subreg.

2019-01-11  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/88693
        * tree-ssa-strlen.c (get_min_string_length): Don't set *full_string_p
        for STRING_CSTs that don't contain any NUL characters in the first
        TREE_STRING_LENGTH bytes.

2019-01-11  Alan Modra  <amodra@gmail.com>

        PR 88777
        PR 88614
        * genattrtab.c (min_fn): Don't translate values.
        (min_attr_value): Return INT_MAX when the value can't be calculated.
        Return minimum among any values that can be calculated.
        (max_attr_value): Adjust.

2019-01-11  Jakub Jelinek  <jakub@redhat.com>

        * Makefile.in (PLUGIN_HEADERS): Add $(INSN_ATTR_H).

2019-01-11  Steve Ellcey  <sellcey@marvell.com>

        * config/aarch64/aarch64.c (aarch64_simd_call_p): New function.
        (aarch64_hard_regno_call_part_clobbered): Add insn argument.
        (aarch64_return_call_with_max_clobbers): New function.
        (TARGET_RETURN_CALL_WITH_MAX_CLOBBERS): New macro.
        * config/avr/avr.c (avr_hard_regno_call_part_clobbered): Add insn
        argument.
        * config/i386/i386.c (ix86_hard_regno_call_part_clobbered): Ditto.
        * config/mips/mips.c (mips_hard_regno_call_part_clobbered): Ditto.
        * config/rs6000/rs6000.c (rs6000_hard_regno_call_part_clobbered): Ditto.
        * config/s390/s390.c (s390_hard_regno_call_part_clobbered): Ditto.
        * cselib.c (cselib_process_insn): Add argument to
        targetm.hard_regno_call_part_clobbered call.
        * ira-conflicts.c (ira_build_conflicts): Ditto.
        * ira-costs.c (ira_tune_allocno_costs): Ditto.
        * lra-constraints.c (inherit_reload_reg): Ditto.
        * lra-int.h (struct lra_reg): Add call_insn field, remove call_p field.
        * lra-lives.c (check_pseudos_live_through_calls): Add call_insn
        argument.  Call targetm.return_call_with_max_clobbers.
        Add argument to targetm.hard_regno_call_part_clobbered call.
        (calls_have_same_clobbers_p): New function.
        (process_bb_lives): Add call_insn and last_call_insn variables.
        Pass call_insn to check_pseudos_live_through_calls.
        Modify if stmt to check targetm.return_call_with_max_clobbers.
        Update setting of flush variable.
        (lra_create_live_ranges_1): Set call_insn to NULL instead of call_p
        to false.
        * lra.c (initialize_lra_reg_info_element): Set call_insn to NULL.
        * regcprop.c (copyprop_hardreg_forward_1): Add argument to
        targetm.hard_regno_call_part_clobbered call.
        * reginfo.c (choose_hard_reg_mode): Ditto.
        * regrename.c (check_new_reg_p): Ditto.
        * reload.c (find_equiv_reg): Ditto.
        * reload1.c (emit_reload_insns): Ditto.
        * sched-deps.c (deps_analyze_insn): Ditto.
        * sel-sched.c (init_regs_for_mode): Ditto.
        (mark_unavailable_hard_regs): Ditto.
        * targhooks.c (default_dwarf_frame_reg_mode): Ditto.
        * target.def (hard_regno_call_part_clobbered): Add insn argument.
        (return_call_with_max_clobbers): New target function.
        * doc/tm.texi: Regenerate.
        * doc/tm.texi.in (TARGET_RETURN_CALL_WITH_MAX_CLOBBERS): New hook.
        * hooks.c (hook_bool_uint_mode_false): Change to
        hook_bool_insn_uint_mode_false.
        * hooks.h (hook_bool_uint_mode_false): Ditto.

2019-01-11  Steve Ellcey  <sellcey@marvell.com>

        * config/aarch64/aarch64.c (aarch64_simd_call_p): New function.
        (aarch64_remove_extra_call_preserved_regs): New function.
        (TARGET_REMOVE_EXTRA_CALL_PRESERVED_REGS): New macro.
        * doc/tm.texi.in (TARGET_REMOVE_EXTRA_CALL_PRESERVED_REGS): New hook.
        * doc/tm.texi: Regenerate.
        * final.c (get_call_reg_set_usage): Call new hook.
        * target.def (remove_extra_call_preserved_regs): New hook.
        * targhooks.c (default_remove_extra_call_preserved_regs): New function.
        * targhooks.h (default_remove_extra_call_preserved_regs): New function.

2019-01-11  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/88714
        * passes.c (finish_optimization_passes): Call print_combine_total_stats
        inside of pass_combine_1 dump rather than pass_profile_1.

2019-01-11  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (PTX_CTA_NUM_BARRIERS, PTX_PER_CTA_BARRIER)
        (PTX_NUM_PER_CTA_BARRIER, PTX_FIRST_PER_WORKER_BARRIER)
        (PTX_NUM_PER_WORKER_BARRIERS): Define.
        (nvptx_apply_dim_limits): Prevent vector_length 64 and
        num_workers 16.

2019-01-11  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (PTX_CTA_SIZE): Move up.

2019-01-11  Jan Beulich  <jbeulich@suse.com>

        * config/i386/i386.md (rex64suffix): Add L suffix for SI.
        * config/i386/sse.md (cvtusi2<ssescalarmodesuffix>32<round_name>,
        sse2_cvtsi2sd): Add {l}.
        (sse2_cvtsi2sdq<round_name>): Make q conditional upon AT&T
        syntax.

2019-01-10  Jakub Jelinek  <jakub@redhat.com>

        PR target/88785
        * config/i386/sse.md (float<floatunssuffix>v2div2sf2): Turn into
        define_expand.
        (*float<floatunssuffix>v2div2sf2): New define_insn.
        (float<floatunssuffix>v2div2sf2_mask): Turn into define_expand.
        (*float<floatunssuffix>v2div2sf2_mask): New define_insn.
        (*float<floatunssuffix>v2div2sf2_mask_1): Replace
        subrtxes (const_vector:V2SF [(const_int 0) (const_int 0)]) with
        match_operands with "const0_operand" "C".

2019-01-10  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/aarch64-builtins.c
        (aarch64_init_builtins): Move aarch64_init_fcmla_laneq_builtins...
        (aarch64_init_simd_builtins): ...Here

2019-01-10  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/87305
        * lra-assigns.c
        (setup_live_pseudos_and_spill_after_risky_transforms): Check
        allocation for big endian pseudos used as paradoxical subregs and
        spill them if it is wrong.
        * lra-constraints.c (lra_constraints): Add a comment.

2019-01-10  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/88792
        * tree-ssa-pre.c (get_representative_for): Do not return a
        value-number here.

2019-01-10  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/84877
        PR bootstrap/88450
        * function.c (assign_stack_local_1): Revert the 2018-11-21 changes.
        (assign_parm_setup_block): Do the argument slot realignment here
        instead.

2019-01-10  Stefan Agner  <stefan@agner.ch>

        PR target/88648
        * config/arm/arm.c (arm_option_override_internal): Force
        opts->x_inline_asm_unified to true only if TARGET_THUMB2_P.

2019-01-10  Jakub Jelinek  <jakub@redhat.com>

        PR c/88568
        * attribs.c (handle_dll_attribute): Clear TREE_STATIC after setting
        DECL_EXTERNAL.

2019-01-10  Tamar Christina  <tamar.christina@arm.com>

        * config/arm/arm-builtins.c
        (enum arm_type_qualifiers): Add qualifier_lane_pair_index.
        (MAC_LANE_PAIR_QUALIFIERS): New.
        (arm_expand_builtin_args): Use it.
        (arm_expand_builtin_1): Likewise.
        * config/arm/arm-protos.h (neon_vcmla_lane_prepare_operands): New.
        * config/arm/arm.c (neon_vcmla_lane_prepare_operands): New.
        * config/arm/arm-c.c (arm_cpu_builtins): Add __ARM_FEATURE_COMPLEX.
        * config/arm/arm_neon.h:
        (vcadd_rot90_f16): New.
        (vcaddq_rot90_f16): New.
        (vcadd_rot270_f16): New.
        (vcaddq_rot270_f16): New.
        (vcmla_f16): New.
        (vcmlaq_f16): New.
        (vcmla_lane_f16): New.
        (vcmla_laneq_f16): New.
        (vcmlaq_lane_f16): New.
        (vcmlaq_laneq_f16): New.
        (vcmla_rot90_f16): New.
        (vcmlaq_rot90_f16): New.
        (vcmla_rot90_lane_f16): New.
        (vcmla_rot90_laneq_f16): New.
        (vcmlaq_rot90_lane_f16): New.
        (vcmlaq_rot90_laneq_f16): New.
        (vcmla_rot180_f16): New.
        (vcmlaq_rot180_f16): New.
        (vcmla_rot180_lane_f16): New.
        (vcmla_rot180_laneq_f16): New.
        (vcmlaq_rot180_lane_f16): New.
        (vcmlaq_rot180_laneq_f16): New.
        (vcmla_rot270_f16): New.
        (vcmlaq_rot270_f16): New.
        (vcmla_rot270_lane_f16): New.
        (vcmla_rot270_laneq_f16): New.
        (vcmlaq_rot270_lane_f16): New.
        (vcmlaq_rot270_laneq_f16): New.
        (vcadd_rot90_f32): New.
        (vcaddq_rot90_f32): New.
        (vcadd_rot270_f32): New.
        (vcaddq_rot270_f32): New.
        (vcmla_f32): New.
        (vcmlaq_f32): New.
        (vcmla_lane_f32): New.
        (vcmla_laneq_f32): New.
        (vcmlaq_lane_f32): New.
        (vcmlaq_laneq_f32): New.
        (vcmla_rot90_f32): New.
        (vcmlaq_rot90_f32): New.
        (vcmla_rot90_lane_f32): New.
        (vcmla_rot90_laneq_f32): New.
        (vcmlaq_rot90_lane_f32): New.
        (vcmlaq_rot90_laneq_f32): New.
        (vcmla_rot180_f32): New.
        (vcmlaq_rot180_f32): New.
        (vcmla_rot180_lane_f32): New.
        (vcmla_rot180_laneq_f32): New.
        (vcmlaq_rot180_lane_f32): New.
        (vcmlaq_rot180_laneq_f32): New.
        (vcmla_rot270_f32): New.
        (vcmlaq_rot270_f32): New.
        (vcmla_rot270_lane_f32): New.
        (vcmla_rot270_laneq_f32): New.
        (vcmlaq_rot270_lane_f32): New.
        (vcmlaq_rot270_laneq_f32): New.
        * config/arm/arm_neon_builtins.def (vcadd90, vcadd270, vcmla0, vcmla90,
        vcmla180, vcmla270, vcmla_lane0, vcmla_lane90, vcmla_lane180,
        vcmla_lane270, vcmla_laneq0, vcmla_laneq90, vcmla_laneq180,
        vcmla_laneq270, vcmlaq_lane0, vcmlaq_lane90, vcmlaq_lane180,
        vcmlaq_lane270): New.
        * config/arm/neon.md (neon_vcmla_lane<rot><mode>,
        neon_vcmla_laneq<rot><mode>, neon_vcmlaq_lane<rot><mode>): New.
        * config/arm/arm.c (arm_arch8_3, arm_arch8_4): New.
        * config/arm/arm.h (TARGET_COMPLEX, arm_arch8_3, arm_arch8_4): New.
        (arm_option_reconfigure_globals): Use them.
        * config/arm/iterators.md (VDF, VQ_HSF): New.
        (VCADD, VCMLA): New.
        (VF_constraint, rot, rotsplit1, rotsplit2): Add V4HF and V8HF.
        * config/arm/neon.md (neon_vcadd<rot><mode>, neon_vcmla<rot><mode>):
        New.
        * config/arm/unspecs.md (UNSPEC_VCADD90, UNSPEC_VCADD270,
        UNSPEC_VCMLA, UNSPEC_VCMLA90, UNSPEC_VCMLA180, UNSPEC_VCMLA270): New.

2019-01-10  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/aarch64-builtins.c (enum aarch64_type_qualifiers):
        Add qualifier_lane_pair_index.
        (emit-rtl.h): Include.
        (TYPES_QUADOP_LANE_PAIR): New.
        (aarch64_simd_expand_args): Use it.
        (aarch64_simd_expand_builtin): Likewise.
        (AARCH64_SIMD_FCMLA_LANEQ_BUILTINS, aarch64_fcmla_laneq_builtin_datum):
        New.
        (FCMLA_LANEQ_BUILTIN, AARCH64_SIMD_FCMLA_LANEQ_BUILTIN_BASE,
        AARCH64_SIMD_FCMLA_LANEQ_BUILTINS, aarch64_fcmla_lane_builtin_data,
        aarch64_init_fcmla_laneq_builtins, aarch64_expand_fcmla_builtin): New.
        (aarch64_init_builtins): Add aarch64_init_fcmla_laneq_builtins.
        (aarch64_expand_buildin): Add AARCH64_SIMD_BUILTIN_FCMLA_LANEQ0_V2SF,
        AARCH64_SIMD_BUILTIN_FCMLA_LANEQ90_V2SF,
        AARCH64_SIMD_BUILTIN_FCMLA_LANEQ180_V2SF,
        AARCH64_SIMD_BUILTIN_FCMLA_LANEQ2700_V2SF,
        AARCH64_SIMD_BUILTIN_FCMLA_LANEQ0_V4HF,
        AARCH64_SIMD_BUILTIN_FCMLA_LANEQ90_V4HF,
        AARCH64_SIMD_BUILTIN_FCMLA_LANEQ180_V4HF,
        AARCH64_SIMD_BUILTIN_FCMLA_LANEQ270_V4HF.
        * config/aarch64/iterators.md (FCMLA_maybe_lane): New.
        * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins):
        Add __ARM_FEATURE_COMPLEX.
        * config/aarch64/aarch64-simd-builtins.def (fcadd90, fcadd270, fcmla0,
        fcmla90, fcmla180, fcmla270, fcmla_lane0, fcmla_lane90, fcmla_lane180,
        fcmla_lane270, fcmla_laneq0, fcmla_laneq90, fcmla_laneq180,
        fcmla_laneq270, fcmlaq_lane0, fcmlaq_lane90, fcmlaq_lane180,
        fcmlaq_lane270): New.
        * config/aarch64/aarch64-simd.md (aarch64_fcmla_lane<rot><mode>,
        aarch64_fcmla_laneq<rot>v4hf, aarch64_fcmlaq_lane<rot><mode>,
        aarch64_fcadd<rot><mode>, aarch64_fcmla<rot><mode>): New.
        * config/aarch64/arm_neon.h:
        (vcadd_rot90_f16): New.
        (vcaddq_rot90_f16): New.
        (vcadd_rot270_f16): New.
        (vcaddq_rot270_f16): New.
        (vcmla_f16): New.
        (vcmlaq_f16): New.
        (vcmla_lane_f16): New.
        (vcmla_laneq_f16): New.
        (vcmlaq_lane_f16): New.
        (vcmlaq_rot90_lane_f16): New.
        (vcmla_rot90_laneq_f16): New.
        (vcmla_rot90_lane_f16): New.
        (vcmlaq_rot90_f16): New.
        (vcmla_rot90_f16): New.
        (vcmlaq_laneq_f16): New.
        (vcmla_rot180_laneq_f16): New.
        (vcmla_rot180_lane_f16): New.
        (vcmlaq_rot180_f16): New.
        (vcmla_rot180_f16): New.
        (vcmlaq_rot90_laneq_f16): New.
        (vcmlaq_rot270_laneq_f16): New.
        (vcmlaq_rot270_lane_f16): New.
        (vcmla_rot270_laneq_f16): New.
        (vcmlaq_rot270_f16): New.
        (vcmla_rot270_f16): New.
        (vcmlaq_rot180_laneq_f16): New.
        (vcmlaq_rot180_lane_f16): New.
        (vcmla_rot270_lane_f16): New.
        (vcadd_rot90_f32): New.
        (vcaddq_rot90_f32): New.
        (vcaddq_rot90_f64): New.
        (vcadd_rot270_f32): New.
        (vcaddq_rot270_f32): New.
        (vcaddq_rot270_f64): New.
        (vcmla_f32): New.
        (vcmlaq_f32): New.
        (vcmlaq_f64): New.
        (vcmla_lane_f32): New.
        (vcmla_laneq_f32): New.
        (vcmlaq_lane_f32): New.
        (vcmlaq_laneq_f32): New.
        (vcmla_rot90_f32): New.
        (vcmlaq_rot90_f32): New.
        (vcmlaq_rot90_f64): New.
        (vcmla_rot90_lane_f32): New.
        (vcmla_rot90_laneq_f32): New.
        (vcmlaq_rot90_lane_f32): New.
        (vcmlaq_rot90_laneq_f32): New.
        (vcmla_rot180_f32): New.
        (vcmlaq_rot180_f32): New.
        (vcmlaq_rot180_f64): New.
        (vcmla_rot180_lane_f32): New.
        (vcmla_rot180_laneq_f32): New.
        (vcmlaq_rot180_lane_f32): New.
        (vcmlaq_rot180_laneq_f32): New.
        (vcmla_rot270_f32): New.
        (vcmlaq_rot270_f32): New.
        (vcmlaq_rot270_f64): New.
        (vcmla_rot270_lane_f32): New.
        (vcmla_rot270_laneq_f32): New.
        (vcmlaq_rot270_lane_f32): New.
        (vcmlaq_rot270_laneq_f32): New.
        * config/aarch64/aarch64.h (TARGET_COMPLEX): New.
        * config/aarch64/iterators.md (UNSPEC_FCADD90, UNSPEC_FCADD270,
        UNSPEC_FCMLA, UNSPEC_FCMLA90, UNSPEC_FCMLA180, UNSPEC_FCMLA270): New.
        (FCADD, FCMLA): New.
        (rot): New.
        * config/arm/types.md (neon_fcadd, neon_fcmla): New.

2019-01-09  Sandra Loosemore  <sandra@codesourcery.com>

        PR other/16615

        * config/pa/pa.c: Change "can not" to "cannot".
        * gimple-ssa-evrp-analyze.c: Likewise.
        * ipa-icf.c: Likewise.
        * ipa-polymorphic-call.c: Likewise.
        * ipa-pure-const.c: Likewise.
        * lra-constraints.c: Likewise.
        * lra-remat.c: Likewise.
        * reload1.c: Likewise.
        * reorg.c: Likewise.
        * tree-ssa-uninit.c: Likewise.

2019-01-09  Sandra Loosemore  <sandra@codesourcery.com>

        PR other/16615

        * Makefile.in: Mechanically replace "can not" with "cannot".
        * alias.c: Likewise.
        * builtins.c: Likewise.
        * calls.c: Likewise.
        * cgraph.c: Likewise.
        * cgraph.h: Likewise.
        * cgraphclones.c: Likewise.
        * cgraphunit.c: Likewise.
        * combine-stack-adj.c: Likewise.
        * combine.c: Likewise.
        * common/config/i386/i386-common.c: Likewise.
        * config/aarch64/aarch64.c: Likewise.
        * config/alpha/sync.md: Likewise.
        * config/arc/arc.c: Likewise.
        * config/arc/predicates.md: Likewise.
        * config/arm/arm-c.c: Likewise.
        * config/arm/arm.c: Likewise.
        * config/arm/arm.h: Likewise.
        * config/arm/arm.md: Likewise.
        * config/arm/cortex-r4f.md: Likewise.
        * config/csky/csky.c: Likewise.
        * config/csky/csky.h: Likewise.
        * config/darwin-f.c: Likewise.
        * config/epiphany/epiphany.md: Likewise.
        * config/i386/i386.c: Likewise.
        * config/i386/sol2.h: Likewise.
        * config/m68k/m68k.c: Likewise.
        * config/mcore/mcore.h: Likewise.
        * config/microblaze/microblaze.md: Likewise.
        * config/mips/20kc.md: Likewise.
        * config/mips/sb1.md: Likewise.
        * config/nds32/nds32.c: Likewise.
        * config/nds32/predicates.md: Likewise.
        * config/pa/pa.c: Likewise.
        * config/rs6000/e300c2c3.md: Likewise.
        * config/rs6000/rs6000.c: Likewise.
        * config/s390/s390.h: Likewise.
        * config/sh/sh.c: Likewise.
        * config/sh/sh.md: Likewise.
        * config/spu/vmx2spu.h: Likewise.
        * cprop.c: Likewise.
        * dbxout.c: Likewise.
        * df-scan.c: Likewise.
        * doc/cfg.texi: Likewise.
        * doc/extend.texi: Likewise.
        * doc/fragments.texi: Likewise.
        * doc/gty.texi: Likewise.
        * doc/invoke.texi: Likewise.
        * doc/lto.texi: Likewise.
        * doc/md.texi: Likewise.
        * doc/objc.texi: Likewise.
        * doc/rtl.texi: Likewise.
        * doc/tm.texi: Likewise.
        * dse.c: Likewise.
        * emit-rtl.c: Likewise.
        * emit-rtl.h: Likewise.
        * except.c: Likewise.
        * expmed.c: Likewise.
        * expr.c: Likewise.
        * fold-const.c: Likewise.
        * genautomata.c: Likewise.
        * gimple-fold.c: Likewise.
        * hard-reg-set.h: Likewise.
        * ifcvt.c: Likewise.
        * ipa-comdats.c: Likewise.
        * ipa-cp.c: Likewise.
        * ipa-devirt.c: Likewise.
        * ipa-fnsummary.c: Likewise.
        * ipa-icf.c: Likewise.
        * ipa-inline-transform.c: Likewise.
        * ipa-inline.c: Likewise.
        * ipa-polymorphic-call.c: Likewise.
        * ipa-profile.c: Likewise.
        * ipa-prop.c: Likewise.
        * ipa-pure-const.c: Likewise.
        * ipa-reference.c: Likewise.
        * ipa-split.c: Likewise.
        * ipa-visibility.c: Likewise.
        * ipa.c: Likewise.
        * ira-build.c: Likewise.
        * ira-color.c: Likewise.
        * ira-conflicts.c: Likewise.
        * ira-costs.c: Likewise.
        * ira-int.h: Likewise.
        * ira-lives.c: Likewise.
        * ira.c: Likewise.
        * ira.h: Likewise.
        * loop-invariant.c: Likewise.
        * loop-unroll.c: Likewise.
        * lower-subreg.c: Likewise.
        * lra-assigns.c: Likewise.
        * lra-constraints.c: Likewise.
        * lra-eliminations.c: Likewise.
        * lra-lives.c: Likewise.
        * lra-remat.c: Likewise.
        * lra-spills.c: Likewise.
        * lra.c: Likewise.
        * lto-cgraph.c: Likewise.
        * lto-streamer-out.c: Likewise.
        * postreload-gcse.c: Likewise.
        * predict.c: Likewise.
        * profile-count.h: Likewise.
        * profile.c: Likewise.
        * recog.c: Likewise.
        * ree.c: Likewise.
        * reload.c: Likewise.
        * reload1.c: Likewise.
        * reorg.c: Likewise.
        * resource.c: Likewise.
        * rtl.def: Likewise.
        * rtl.h: Likewise.
        * rtlanal.c: Likewise.
        * sched-deps.c: Likewise.
        * sched-ebb.c: Likewise.
        * sched-rgn.c: Likewise.
        * sel-sched-ir.c: Likewise.
        * sel-sched.c: Likewise.
        * shrink-wrap.c: Likewise.
        * simplify-rtx.c: Likewise.
        * symtab.c: Likewise.
        * target.def: Likewise.
        * toplev.c: Likewise.
        * tree-call-cdce.c: Likewise.
        * tree-cfg.c: Likewise.
        * tree-complex.c: Likewise.
        * tree-core.h: Likewise.
        * tree-eh.c: Likewise.
        * tree-inline.c: Likewise.
        * tree-loop-distribution.c: Likewise.
        * tree-nrv.c: Likewise.
        * tree-profile.c: Likewise.
        * tree-sra.c: Likewise.
        * tree-ssa-alias.c: Likewise.
        * tree-ssa-dce.c: Likewise.
        * tree-ssa-dom.c: Likewise.
        * tree-ssa-forwprop.c: Likewise.
        * tree-ssa-loop-im.c: Likewise.
        * tree-ssa-loop-ivcanon.c: Likewise.
        * tree-ssa-loop-ivopts.c: Likewise.
        * tree-ssa-loop-niter.c: Likewise.
        * tree-ssa-phionlycprop.c: Likewise.
        * tree-ssa-phiopt.c: Likewise.
        * tree-ssa-propagate.c: Likewise.
        * tree-ssa-threadedge.c: Likewise.
        * tree-ssa-threadupdate.c: Likewise.
        * tree-ssa-uninit.c: Likewise.
        * tree-ssanames.c: Likewise.
        * tree-streamer-out.c: Likewise.
        * tree.c: Likewise.
        * tree.h: Likewise.
        * vr-values.c: Likewise.

2019-01-09  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386-protos.h (ix86_expand_xorsign): New prototype.
        (ix86_split_xorsign): Ditto.
        * config/i386/i386.c (ix86_expand_xorsign): New function.
        (ix86_split_xorsign): Ditto.
        * config/i386/i386.md (UNSPEC_XORSIGN): New unspec.
        (xorsign<mode>3): New expander.
        (xorsign<mode>3_1): New insn_and_split pattern.
        * config/i386/sse.md (xorsign<mode>3): New expander.

2019-01-09  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.md (*tablejump_sp32): Merge into...
        (*tablejump_sp64): Likewise.
        (*tablejump<P:mode>): ...this.
        (*call_address_sp32): Merge into...
        (*call_address_sp64): Likewise.
        (*call_address<P:mode>): ...this.
        (*call_symbolic_sp32): Merge into...
        (*call_symbolic_sp64): Likewise.
        (*call_symbolic<P:mode>): ...this.
        (call_value): Remove constraint and add predicate.
        (*call_value_address_sp32): Merge into...
        (*call_value_address_sp64): Likewise.
        (*call_value_address<P:mode>): ...this.
        (*call_value_symbolic_sp32): Merge into...
        (*call_value_symbolic_sp64): Likewise.
        (*call_value_symbolic<P:mode>): ...this.
        (*sibcall_symbolic_sp32): Merge into...
        (*sibcall_symbolic_sp64): Likewise.
        (*sibcall_symbolic<P:mode>): ...this.
        (sibcall_value): Remove constraint and add predicate.
        (*sibcall_value_symbolic_sp32): Merge into...
        (*sibcall_value_symbolic_sp64): Likewise.
        (*sibcall_value_symbolic<P:mode>): ...this.
        (window_save): Minor tweak.
        (*branch_sp32): Merge into...
        (*branch_sp64): Likewise.
        (*branch<P:mode>): ...this.

2019-01-09  Eric Botcazou  <ebotcazou@adacore.com>
            James Clarke  <jrtc27@jrtc27.com>

        PR target/84010
        * config/sparc/sparc.c (sparc_legitimize_tls_address): Only use Pmode
        consistently in TLS address generation and adjust code to the renaming
        of patterns.  Mark calls to __tls_get_addr as const.
        * config/sparc/sparc.md (tgd_hi22): Turn into...
        (tgd_hi22<P:mode>): ...this and use Pmode throughout.
        (tgd_lo10): Turn into...
        (tgd_lo10<P:mode>): ...this and use Pmode throughout.
        (tgd_add32): Merge into...
        (tgd_add64): Likewise.
        (tgd_add<P:mode>): ...this and use Pmode throughout.
        (tldm_hi22): Turn into...
        (tldm_hi22<P:mode>): ...this and use Pmode throughout.
        (tldm_lo10): Turn into...
        (tldm_lo10<P:mode>): ...this and use Pmode throughout.
        (tldm_add32): Merge into...
        (tldm_add64): Likewise.
        (tldm_add<P:mode>): ...this and use Pmode throughout.
        (tldm_call32): Merge into...
        (tldm_call64): Likewise.
        (tldm_call<P:mode>): ...this and use Pmode throughout.
        (tldo_hix22): Turn into...
        (tldo_hix22<P:mode>): ...this and use Pmode throughout.
        (tldo_lox10): Turn into...
        (tldo_lox10<P:mode>): ...this and use Pmode throughout.
        (tldo_add32): Merge into...
        (tldo_add64): Likewise.
        (tldo_add<P:mode>): ...this and use Pmode throughout.
        (tie_hi22): Turn into...
        (tie_hi22<P:mode>): ...this and use Pmode throughout.
        (tie_lo10): Turn into...
        (tie_lo10<P:mode>): ...this and use Pmode throughout.
        (tie_ld64): Use DImode throughout.
        (tie_add32): Merge into...
        (tie_add64): Likewise.
        (tie_add<P:mode>): ...this and use Pmode throughout.
        (tle_hix22_sp32): Merge into...
        (tle_hix22_sp64): Likewise.
        (tle_hix22<P:mode>): ...this and use Pmode throughout.
        (tle_lox22_sp32): Merge into...
        (tle_lox22_sp64): Likewise.
        (tle_lox22<P:mode>): ...this and use Pmode throughout.
        (*tldo_ldub_sp32): Merge into...
        (*tldo_ldub_sp64): Likewise.
        (*tldo_ldub<P:mode>): ...this and use Pmode throughout.
        (*tldo_ldub1_sp32): Merge into...
        (*tldo_ldub1_sp64): Likewise.
        (*tldo_ldub1<P:mode>): ...this and use Pmode throughout.
        (*tldo_ldub2_sp32): Merge into...
        (*tldo_ldub2_sp64): Likewise.
        (*tldo_ldub2<P:mode>): ...this and use Pmode throughout.
        (*tldo_ldsb1_sp32): Merge into...
        (*tldo_ldsb1_sp64): Likewise.
        (*tldo_ldsb1<P:mode>): ...this and use Pmode throughout.
        (*tldo_ldsb2_sp32): Merge into...
        (*tldo_ldsb2_sp64): Likewise.
        (*tldo_ldsb2<P:mode>): ...this and use Pmode throughout.
        (*tldo_ldub3_sp64): Use DImode throughout.
        (*tldo_ldsb3_sp64): Likewise.
        (*tldo_lduh_sp32): Merge into...
        (*tldo_lduh_sp64): Likewise.
        (*tldo_lduh<P:mode>): ...this and use Pmode throughout.
        (*tldo_lduh1_sp32): Merge into...
        (*tldo_lduh1_sp64): Likewise.
        (*tldo_lduh1<P:mode>): ...this and use Pmode throughout.
        (*tldo_ldsh1_sp32): Merge into...
        (*tldo_ldsh1_sp64): Likewise.
        (*tldo_ldsh1<P:mode>): ...this and use Pmode throughout.
        (*tldo_lduh2_sp64): Use DImode throughout.
        (*tldo_ldsh2_sp64): Likewise.
        (*tldo_lduw_sp32): Merge into...
        (*tldo_lduw_sp64): Likewise.
        (*tldo_lduw<P:mode>): ...this and use Pmode throughout.
        (*tldo_lduw1_sp64): Use DImode throughout.
        (*tldo_ldsw1_sp64): Likewise.
        (*tldo_ldx_sp64): Likewise.
        (*tldo_stb_sp32): Merge into...
        (*tldo_stb_sp64): Likewise.
        (*tldo_stb<P:mode>): ...this and use Pmode throughout.
        (*tldo_sth_sp32): Merge into...
        (*tldo_sth_sp64): Likewise.
        (*tldo_sth<P:mode>): ...this and use Pmode throughout.
        (*tldo_stw_sp32): Merge into...
        (*tldo_stw_sp64): Likewise.
        (*tldo_stw<P:mode>): ...this and use Pmode throughout.
        (*tldo_stx_sp64): Use DImode throughout.

2018-01-09  Sudakshina Das  <sudi.das@arm.com>

        * config/aarch64/aarch64.c (aarch64_override_options): Add case to
        check configure option to set BTI and Return Address Signing.
        * configure.ac: Add --enable-standard-branch-protection and
        --disable-standard-branch-protection.
        * configure: Regenerated.
        * doc/install.texi: Document the same.

2018-01-09  Sudakshina Das  <sudi.das@arm.com>
            Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        * config.gcc (aarch64*-*-*): Add aarch64-bti-insert.o.
        * config/aarch64/aarch64.h: Update comment for TRAMPOLINE_SIZE.
        * config/aarch64/aarch64.c (aarch64_asm_trampoline_template): Update
        if bti is enabled.
        * config/aarch64/aarch64-bti-insert.c: New file.
        * config/aarch64/aarch64-passes.def (INSERT_PASS_BEFORE): Insert bti
        pass.
        * config/aarch64/aarch64-protos.h (make_pass_insert_bti): Declare the
        new bti pass.
        * config/aarch64/aarch64.md (unspecv): Add UNSPECV_BTI_NOARG,
        UNSPECV_BTI_C, UNSPECV_BTI_J and UNSPECV_BTI_JC.
        (bti_noarg, bti_j, bti_c, bti_jc): New define_insns.
        * config/aarch64/t-aarch64: Add rule for aarch64-bti-insert.o.

2018-01-09  Sudakshina Das  <sudi.das@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_bti_enabled): Declare.
        * config/aarch64/aarch64.c (aarch64_handle_no_branch_protection):
        Disable bti for -mbranch-protection=none.
        (aarch64_handle_standard_branch_protection): Enable bti for
        -mbranch-protection=standard.
        (aarch64_handle_bti_protection): Enable bti for "bti" in the string to
        -mbranch-protection.
        (aarch64_bti_enabled): Check if bti is enabled.
        * config/aarch64/aarch64.opt: Declare target variable.
        * doc/invoke.texi: Add bti to the -mbranch-protection documentation.

2018-01-09  Sudakshina Das  <sudi.das@arm.com>

        * config/aarch64/aarch64.c (aarch64_expand_prologue): Use new
        epilogue/prologue scratch registers EP0_REGNUM and EP1_REGNUM.
        (aarch64_expand_epilogue): Likewise.
        (aarch64_output_mi_thunk): Likewise.
        * config/aarch64/aarch64.h (REG_CLASS_CONTENTS): Change
        TAILCALL_ADDR_REGS to x16 and x17.
        * config/aarch64/aarch64.md: Define EP0_REGNUM and EP1_REGNUM.

2018-01-09  Sudakshina Das  <sudi.das@arm.com>

        * config/aarch64/aarch64-option-extensions.def: Define
        AARCH64_OPT_EXTENSION for memtag, rng, sb, ssbs and predres.
        * config/aarch64/aarch64.h (AARCH64_FL_RNG): New.
        (AARCH64_FL_MEMTAG, ARCH64_FL_SB, AARCH64_FL_SSBS): New.
        (AARCH64_FL_PREDRES): New.
        (AARCH64_FL_FOR_ARCH8_5): Add AARCH64_FL_SB, AARCH64_FL_SSBS and
        AARCH64_FL_PREDRES by default.
        * doc/invoke.texi: Document rng, memtag, sb, ssbs and predres.

2018-01-09  Sudakshina Das  <sudi.das@arm.com>

        * config/aarch64/aarch64-arches.def: Define AARCH64_ARCH for
        ARMv8.5-A.
        * config/aarch64/aarch64.h (AARCH64_FL_V8_5): New.
        (AARCH64_FL_FOR_ARCH8_5, AARCH64_ISA_V8_5): New.
        * doc/invoke.texi: Document ARMv8.5-A.

2019-01-09  Alejandro Martinez  <alejandro.martinezvicente@arm.com>

        * config/aarch64/aarch64-sve.md (copysign<mode>3): New define_expand.
        (xorsign<mode>3): Likewise.

2019-01-09  Jelinek  <jakub@redhat.com>

        PR middle-end/88758
        * tree.c (initializer_each_zero_or_onep) <case VECTOR_CST>: Use
        vector_cst_elt instead of VECTOR_CST_ENCODED_ELT.

        PR rtl-optimization/88331
        * function.c (assign_stack_local_1): Don't set dynamic_align_addr if
        not currently_expanding_to_rtl.

2019-01-09  Eric Botcazou  <ebotcazou@adacore.com>

        * doc/invoke.texi (-Os): Remove trailing spaces.
        (-finline-functions): Remove reference to -O2.

2019-01-08  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/79593
        * config/i386/i386.md (reg = mem; mem = reg): New define_peephole2.

        * config/rs6000/rs6000.c (rs6000_delegitimize_address): Delegitimize
        UNSPEC_FUSION_GPR to its argument.  Formatting fixes.

2019-01-08  Eric Botcazou  <ebotcazou@adacore.com>

        PR bootstrap/88721
        * config/sparc/sparc.c (function_arg_slotno): Set *PPREGNO & *PPADDING
        to -1 on entry.

        PR debug/88723
        * config/sparc/sparc.c (sparc_delegitimize_address): Deal with naked
        UNSPECs and UNSPEC_MOVE_GOTDATA specifically.

2019-01-08  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/88717
        * config/i386/i386.c (ix86_avx_u128_mode_exit): Call
        ix86_avx_u128_mode_entry.

2019-01-08  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/88753
        * tree-switch-conversion.c (switch_conversion::build_one_array):
        Come up with local variable constructor.  Convert first to
        type of constructor values.

2019-01-08  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/86554
        * tree-ssa-sccvn.c (eliminate_dom_walker, rpo_elim,
        rpo_avail): Move earlier.
        (visit_nary_op): When value-numbering to expressions
        with different overflow behavior make sure there's an
        available expression on the path.

2019-01-08  Sam Tebbs  <sam.tebbs@arm.com>

        * config/aarch64/aarch64.c (BRANCH_PROTECT_STR_MAX,
        aarch64_parse_branch_protection,
        struct aarch64_branch_protect_type,
        aarch64_handle_no_branch_protection,
        aarch64_handle_standard_branch_protection,
        aarch64_validate_mbranch_protection,
        aarch64_handle_pac_ret_protection,
        aarch64_handle_attr_branch_protection,
        accepted_branch_protection_string,
        aarch64_pac_ret_subtypes,
        aarch64_branch_protect_types,
        aarch64_handle_pac_ret_leaf): Define.
        (aarch64_override_options_after_change_1, aarch64_override_options):
        Add check for accepted_branch_protection_string.
        (aarch64_option_save): Save accepted_branch_protection_string.
        (aarch64_option_restore): Save accepted_branch_protection_string.
        * config/aarch64/aarch64.c (aarch64_attributes): Add branch-protection.
        * config/aarch64/aarch64.opt: Add mbranch-protection. Deprecate
        msign-return-address.
        * doc/invoke.texi: Add mbranch-protection.

2019-01-08  Alan Modra  <amodra@gmail.com>

        PR target/88614
        * genattrtab.c (max_attr_value, min_attr_value, or_attr_value):
        Delete "unknownp" parameter.  Adjust callers.  Handle
        CONST_INT, PLUS, MINUS, and MULT.
        (attr_value_aligned): Renamed from or_attr_value.
        (min_attr_value): Return INT_MIN for unhandled rtl case..
        (min_fn): ..and translate to INT_MAX here.
        (write_length_unit_log): Modify to cope without "unknown".
        (write_attr_value): Handle IF_THEN_ELSE.

2019-01-07  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-vect-stmts.c (vectorizable_store): Don't use the dataref_offset
        optimization for masked stores.

2019-01-07  Richard Sandiford  <richard.sandiford@arm.com>

        PR middle-end/88567
        * tree-vect-loop.c (get_initial_defs_for_reduction): Pass the
        output vector directly to duplicate_and_interleave instead of
        going through a temporary.  Postpone insertion of ctor_seq to
        the end of the loop.

2019-01-07  Richard Earnshaw  <rearnsha@arm.com>

        PR target/86891
        * config/aarch64/aarch64.c (aarch64_expand_subvti): New parameter
        unsigned_p.  Handle signed and unsigned overflow correction as
        required.
        * config/aarch64/aarch64-protos.h (aarch64_expand_subvti): Update
        prototype.
        * config/aarch64/aarch64.md (addv<mode>4): Use aarch64_plus_operand
        for operand 2.
        (add<mode>3_compareV_imm): Make this callable for expanding.
        (subv<GPI:mode>4): Use register_operand for operand 1.  Use
        aarch64_plus_operand for operand 2.
        (subv<GPI:mode>_insn): New insn pattern.
        (subv<GPI:mode>_imm): Likewise.
        (negv<GPI:mode>3): New expand pattern.
        (negv<GPI:mode>_insn): New insn pattern.
        (negv<GPI:mode>_cmp_only): Likewise.
        (cmpv<GPI:mode>_insn): Likewise.
        (subvti4): Use register_operand for operand 1.  Update call to
        aarch64_expand_subvti.
        (usubvti4): Likewise.
        (negvti3): New expand pattern.
        (negdi_carryout): New insn pattern.
        (negvdi_carryinV): New insn pattern.
        (sub<mode3>_compare1_imm): Delete named insn pattern, make anonymous
        version the named version.
        (peepholes to convert to sub<mode3>_compare1_imm): Adjust order of
        operands.
        (usub<GPI:mode>3_carryinC, usub<GPI:mode>3_carryinC_z1): New insn
        patterns.
        (usub<GPI:mode>3_carryinC_z2, usub<GPI:mode>3_carryinC): New insn
        patterns.
        (sub<mode>3_carryinCV, sub<mode>3_carryinCV_z1_z2): Delete.
        (sub<mode>3_carryinCV_z1, sub<mode>3_carryinCV_z2): Delete.
        (sub<mode>3_carryinCV): Delete.
        (sub<GPI:mode>3_carryinV): New expand pattern.
        sub<mode>3_carryinV, sub<mode>3_carryinV_z2): New insn patterns.

2019-01-07  Richard Biener  <rguenther@suse.de>

        * tree-ssa-uncprop.c (ssa_equip_hash_traits): Remove in favor
        of tree_operand_hash.

2019-01-07  Richard Sandiford  <richard.sandiford@arm.com>

        PR tree-optimization/88598
        * tree.h (single_nonzero_element): Declare.
        * tree.c (single_nonzero_element): New function.
        * match.pd: Fold certain reductions of X & CST to X[I] & CST[I]
        if I is the only nonzero element of CST.

2019-01-07  Richard Sandiford  <richard.sandiford@arm.com>

        PR tree-optimization/88598
        * tree.h (initializer_each_zero_or_onep): Declare.
        * tree.c (initializer_each_zero_or_onep): New function.
        (signed_or_unsigned_type_for): Handle float types too.
        (unsigned_type_for, signed_type_for): Update comments accordingly.
        * match.pd: Fold x * { 0 or 1, 0 or 1, ...} to
        x & { 0 or -1, 0 or -1, ... }.

2019-01-07  Jonathan Wakely  <jwakely@redhat.com>

        * doc/install.texi: Replace references to x86_64-unknown-linux-gnu
        with x86_64-pc-linux-gnu.

2019-01-07  Tom de Vries  <tdevries@suse.de>

        PR target/85486
        * config/nvptx/nvptx.c (has_vector_partitionable_routine_calls_p): New
        function.
        (nvptx_goacc_validate_dims): Force vl32 if calling vector-partitionable
        routines.

2019-01-07  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (vec_extract<mode><ssehalfvecmodelower>): Use
        V_256_512 iterator instead of V_512 and TARGET_AVX instead of
        TARGET_AVX512F as condition.

        PR debug/88723
        * dwarf2out.c (const_ok_for_output_1): Remove redundant call to
        const_not_ok_for_debug_p target hook.
        (mem_loc_descriptor) <case UNSPEC>: Only call const_ok_for_output_1
        on UNSPEC and subexpressions thereof if all subexpressions of the
        UNSPEC are CONSTANT_P.

        PR tree-optimization/88676
        * tree-ssa-phiopt.c (two_value_replacement): New function.
        (tree_ssa_phiopt_worker): Call it.

        PR sanitizer/88619
        * cfgexpand.c (expand_stack_vars): Only align prev_offset to
        ASAN_MIN_RED_ZONE_SIZE, not to maximum of that and alignb.

        PR c++/85052
        * tree-vect-generic.c: Include insn-config.h and recog.h.
        (expand_vector_piecewise): Add defaulted ret_type argument,
        if non-NULL, use that in preference to type for the result type.
        (expand_vector_parallel): Formatting fix.
        (do_vec_conversion, do_vec_narrowing_conversion,
        expand_vector_conversion): New functions.
        (expand_vector_operations_1): Call expand_vector_conversion
        for VEC_CONVERT ifn calls.
        * internal-fn.def (VEC_CONVERT): New internal function.
        * internal-fn.c (expand_VEC_CONVERT): New function.
        * fold-const-call.c (fold_const_vec_convert): New function.
        (fold_const_call): Use it for CFN_VEC_CONVERT.
        * doc/extend.texi (__builtin_convertvector): Document.

2019-01-07  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx-protos.h (nvptx_output_red_partition): Declare.
        * config/nvptx/nvptx.c (vector_red_size, vector_red_align,
        vector_red_partition, vector_red_sym): New global variables.
        (nvptx_option_override): Initialize vector_red_sym.
        (nvptx_declare_function_name): Restore red_partition register.
        (nvptx_file_end): Emit code to declare the vector reduction variables.
        (nvptx_output_red_partition): New function.
        (nvptx_expand_shared_addr): Add vector argument. Use it to handle
        large vector reductions.
        (enum nvptx_builtins): Add NVPTX_BUILTIN_VECTOR_ADDR.
        (nvptx_init_builtins): Add VECTOR_ADDR.
        (nvptx_expand_builtin): Update call to nvptx_expand_shared_addr.
        Handle nvptx_expand_shared_addr.
        (nvptx_get_shared_red_addr): Add vector argument and handle large
        vectors.
        (nvptx_goacc_reduction_setup): Add offload_attrs argument and handle
        large vectors.
        (nvptx_goacc_reduction_init): Likewise.
        (nvptx_goacc_reduction_fini): Likewise.
        (nvptx_goacc_reduction_teardown): Likewise.
        (nvptx_goacc_reduction): Update calls to nvptx_goacc_reduction_{setup,
        init,fini,teardown}.
        (nvptx_init_axis_predicate): Initialize vector_red_partition.
        (nvptx_set_current_function): Init vector_red_partition.
        * config/nvptx/nvptx.md (UNSPECV_RED_PART): New unspecv.
        (nvptx_red_partition): New insn.
        * config/nvptx/nvptx.h (struct machine_function): Add red_partition.

2019-01-07  Tom de Vries  <tdevries@suse.de>

        PR target/85381
        * config/nvptx/nvptx.c (nvptx_process_pars): Don't emit barriers for
        empty loops.

2019-01-07  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (oacc_bcast_partition): Declare.
        (nvptx_option_override): Init oacc_bcast_partition.
        (nvptx_init_oacc_workers): New function.
        (nvptx_declare_function_name): Call nvptx_init_oacc_workers.
        (nvptx_needs_shared_bcast): New function.
        (nvptx_find_par): Generalize to enable vectors to use shared-memory
        to propagate state.
        (nvptx_shared_propagate): Initialize vector bcast partition and
        synchronization state.
        (nvptx_single): Generalize to enable vectors to use shared-memory
        to propagate state.
        (nvptx_process_pars): Likewise.
        (nvptx_set_current_function): Initialize oacc_broadcast_partition.
        * config/nvptx/nvptx.h (struct machine_function): Add
        bcast_partition and sync_bar members.

2019-01-07  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (nvptx_welformed_vector_length_p)
        (nvptx_apply_dim_limits): New function.
        (nvptx_goacc_validate_dims_1): Allow PTX_MAX_VECTOR_LENGTH larger than
        PTX_WARP_SIZE.

2019-01-07  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (nvptx_goacc_validate_dims_1): Move warnings to
        as late as possible.

2019-01-07  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (PTX_VECTOR_LENGTH): Remove.
        (PTX_DEFAULT_VECTOR_LENGTH, PTX_MAX_VECTOR_LENGTH): Define.
        (nvptx_goacc_validate_dims_1, nvptx_dim_limit)
        (nvptx_goacc_reduction_fini): Use PTX_DEFAULT_VECTOR_LENGTH,
        PTX_MAX_VECTOR_LENGTH and PTX_WARP_SIZE instead of PTX_VECTOR_LENGTH.

2019-01-07  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (nvptx_goacc_validate_dims): Add asserts.

2019-01-07  Tom de Vries  <tdevries@suse.de>

        * omp-offload.c (oacc_get_min_dim): New function.
        * omp-offload.h (oacc_get_min_dim): Declare.

2018-12-26  Mateusz B  <mateuszb@poczta.onet.pl>

        PR target/88521
        * config/i386/i386.c (function_value_ms_64): Return small sturct in
        AX_REG and float/double in FIRST_SSE_REG for 4 or 8 byte modes.

2019-01-05  Jan Hubicka  <hubicka@ucw.cz>

        PR tree-opt/86020
        Revert:
        2017-05-22  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-inline.c (edge_badness): Use inlined_time instead of
        inline_summaries->get.

2019-01-05  Jan Hubicka  <hubicka@ucw.cz>

        * opts.c (enable_fdo_optimizations): Enable
        version-loops-for-strides, loop-interchange, unrol-and-jam
        and tree-loop-distribution.
        * invoke.texi: Document newly enabled options.

2019-01-05  Jan Hubicka  <hubicka@ucw.cz>

        * doc/invoke.texi (max-inline-insns-small): New parameters.
        * ipa-inline.c (want_early_inline_function_p): simplify.
        (want_inline_small_function_p): Fix pasto from previous patch;
        use max-inline-insns-small bound.
        * params.def (max-inline-insns-small): New param.
        * ipa-fnsummary.c (analyze_function_body): Initialize time/size
        variables correctly.

2019-01-05  Jan Hubicka  <hubicka@ucw.cz>

        * doc/invoke.texi: Document max-inline-insns-size,
        uninlined-function-insns, uninlined-function-time,
        uninlined-thunk-insns and uninlined-thunk-time.
        * params.def: Add max-inline-insns-size,
        uninlined-function-insns, uninlined-function-time,
        uninlined-thunk-insns and uninlined-thunk-time.
        * ipa-fnsummary.c (compute_fn_summary, analyze_function_body): Use
        new parameters.
        * ipa-inline.c (can_inline_edge_by_limits_p,
        want_inline_small_function_p): Use new parameters.

2019-01-05  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-fnsummary.c (analyze_function_body): Fix accounting of time.

2019-01-05  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/82564
        PR target/88620
        * expr.c (expand_assignment): For calls returning VLA structures
        if to_rtx is not a MEM, force it into a stack temporary.

        PR debug/88635
        * dwarf2out.c (const_ok_for_output_1): Reject MINUS that contains
        SYMBOL_REF, CODE_LABEL or UNSPEC in subexpressions of second argument.
        Reject PLUS that contains SYMBOL_REF, CODE_LABEL or UNSPEC in
        subexpressions of both operands.
        (mem_loc_descriptor): Handle UNSPEC if target hook acks it and all the
        subrtxes are CONSTANT_P.
        * config/i386/i386.c (ix86_const_not_ok_for_debug_p): Revert
        2018-11-09 changes.

2019-01-04  Jan Hubicka  <hubicka@ucw.cz>

        * params.def (hot-bb-count-ws-permille): Set to 990.

2019-01-04  Martin Sebor  <msebor@redhat.com>

        PR c/88546
        * attribs.c (decls_mismatched_attributes): Avoid warning for attribute
        leaf.

2019-01-04  Martin Sebor  <msebor@redhat.com>

        PR c/88363
        * doc/extend.texi (attribute alloc_align, alloc_size): Update.

2019-01-04  Jakub Jelinek  <jakub@redhat.com>

        * gdbinit.in: Turn off pagination for the skip commands, restore
        it to previous state afterwards.

2019-01-04  Jakub Jelinek  <jakub@redhat.com>

        PR target/88594
        * config/i386/i386.c (ix86_expand_divmod_libfunc): Use mode instead
        of GET_MODE (opN) as modes of the libcall arguments.

2019-01-04  Jan Beulich  <jbeulich@suse.com>

        * config/i386/sse.md
        (<avx512>_cmp<mode>3<mask_scalar_merge_name><round_saeonly_name>,
        <avx512>_cmp<mode>3<mask_scalar_merge_name>,
        <avx512>_ucmp<mode>3<mask_scalar_merge_name>,
        <avx512>_ucmp<mode>3<mask_scalar_merge_name>,
        avx512f_vmcmp<mode>3<round_saeonly_name>,
        avx512f_vmcmp<mode>3_mask<round_saeonly_name>,
        avx512f_maskcmp<mode>3,
        <avx512>_cvt<ssemodesuffix>2mask<mode>,
        <avx512>_cvt<ssemodesuffix>2mask<mode>,
        *<avx512>_cvtmask2<ssemodesuffix><mode>,
        *<avx512>_cvtmask2<ssemodesuffix><mode>,
        <avx512>_eq<mode>3<mask_scalar_merge_name>_1,
        <avx512>_eq<mode>3<mask_scalar_merge_name>_1,
        <avx512>_gt<mode>3<mask_scalar_merge_name>,
        <avx512>_gt<mode>3<mask_scalar_merge_name>,
        <avx512>_testm<mode>3<mask_scalar_merge_name>,
        <avx512>_testnm<mode>3<mask_scalar_merge_name>,
        *<avx512>_testm<VI1248_AVX512VLBW:mode>3_zext,
        *<avx512>_testm<VI1248_AVX512VLBW:mode>3_zext_mask,
        *<avx512>_testnm<VI1248_AVX512VLBW:mode>3_zext,
        *<avx512>_testnm<VI1248_AVX512VLBW:mode>3_zext_mask,
        avx512cd_maskb_vec_dup<mode>,
        avx512cd_maskw_vec_dup<mode>,
        avx512dq_fpclass<mode><mask_scalar_merge_name>,
        avx512dq_vmfpclass<mode>,
        avx512vl_vpshufbitqmb<mode><mask_scalar_merge_name>): Use =k
        instead of =Yk.

2019-01-03  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/88659
        * calls.c (maybe_warn_nonstring_arg): Avoid assuming maxlen is set.

2019-01-03  Aaron Sawdey  <acsawdey@linux.ibm.com>

        * config/rs6000/rs6000-string.c (expand_block_move): Don't use
        unaligned vsx and avoid lxvd2x/stxvd2x.
        (gen_lvx_v4si_move): New function.

2019-01-03  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (MACH_VECTOR_LENGTH, MACH_MAX_WORKERS): Define.
        (init_axis_dim, nvptx_mach_max_workers, nvptx_mach_vector_length): New
        function.
        * config/nvptx/nvptx.h (struct machine_function): Add axis_dims.

2019-01-03  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (struct offload_attrs): New.
        (populate_offload_attrs): New function.  Factor mask extraction out of
        nvptx_reorg.  Add extraction of dimensions.
        (nvptx_reorg): Use populate_offload_attrs.

2019-01-03  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (nvptx_goacc_validate_dims_1): Add early-out
        cases for oacc_min_dims_p and routine_p.  Add asserts for
        oacc_default_dims_p and offload_region_p.

2019-01-03  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (nvptx_goacc_validate_dims_1): New function,
        factored out of ...
        (nvptx_goacc_validate_dims): ... here.

2019-01-03  Jan Hubicka  <hubicka@ucw.cz>

        PR tree-optimization/85574
        * tree-ssa-uncprop.c (struct equiv_hash_elt): Remove unused
        structure.
        (struct ssa_equip_hash_traits): Declare.
        (val_ssa_equiv): Use custom hash traits using operand_equal_p.

2019-01-03  Jakub Jelinek  <jakub@redhat.com>

        PR debug/88644
        * dwarf2out.c (modified_type_die): If type is equal to sizetype,
        change it to qualified_type.

2019-01-03  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-utils.c (scale_ipa_profile_for_fn): Break out from ...
        (ipa_merge_profiles): ... here; do not ICE on thunks and aliases.

2019-01-02  Martin Sebor  <msebor@redhat.com>
            Jeff Law  <law@redhat.com>

        * gimple-fold.c (strlen_range_kind): Remove SRK_LENRANGE_2.
        (get_range_strlen_tree): Update appropriately.
        (get_range_strlen)
        * gimple-fold.h (get_range_strlen): Drop unused last argument.

        * gimple-fold.c (gimple_fold_builtin_strlen): Use set_strlen_range
        rather than set_range_info.
        * tree-ssa-strlen.c (set_strlen_range): Extracted from
        maybe_set_strlen_range.  Handle potentially boundary crossing
        cases more conservatively.
        (maybe_set_strlen_range): Parts refactored into set_strlen_range.
        Call set_strlen_range.
        * tree-ssa-strlen.h (set_strlen_range): Add prototype.

        PR middle-end/88663
        * gimple-fold.c (get_range_strlen): Update prototype to no longer
        need the flexp argument.
        (get_range_strlen_tree): Drop flexp argument.  Drop flexp argument
        from calls to get_range_strlen.  Update comments.  Just update
        VAL for an unterminated const char array and let the reset of the
        code handle it normally.  No longer try to set *flexp.  Adjust
        return value.
        (get_range_strlen): Update for the new get_range_strlen API.
        (get_maxval_strlen): Similarly.
        (gimple_fold_builtin_strlen): Handle update meaning of return value
        from get_range_strlen.
        * gimple-ssa-sprintf.c (get_string_length): Update for the new
        get_range_strlen API.

2019-01-02  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/88130
        * varpool.c (varpool_node::ctor_useable_for_folding_p): Also return
        false at WPA time when body was removed.

2019-01-02  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/88650
        * predict.c (set_even_probabilities): Calculate probability
        remainer only when really used.

2019-01-02  Richard Biener  <rguenther@suse.de>

        PR middle-end/88651
        * tree-data-ref.c (analyze_subscript_affine_affine): Use
        widest_ints when mangling max_stmt_execution results.

2019-01-02  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/88621
        * tree-ssa-loop-im.c (gather_mem_refs_stmt): Fix pastos, avoid
        bitfields when canoncalizing.

2019-01-02  Richard Biener  <rguenther@suse.de>

        PR target/87545
        * config/i386/x86-tune-costs.h (intel_cost): Adjust
        cost of cheap SSE instruction.

2019-01-02  Richard Biener  <rguenther@suse.de>

        PR ipa/85574
        * ipa-icf.h (sem_item_optimizer::sort_congruence_split): Declare.
        * ipa-icf.c (sem_item_optimizer::sort_congruence_split): New
        function.
        (sem_item_optimizer::do_congruence_step_f): Sort the congruence
        set after UIDs before splitting them.

2019-01-01  Martin Sebor  <msebor@redhat.com>
            Jeff Law  <law@redhat.com>

        * gimple-fold.c (get_range_strlen_tree): Record if the computed
        length is optimistic.  If it is, then arrange to compute the
        conservative length as well.

        * gimple-fold.h (get_range_strlen): Update prototype.
        * builtins.c (check_access): Update call to get_range_strlen to use
        c_strlen_data pointer.   Change various variable accesses to instead
        pull data from the c_strlen_data structure.
        (check_strncat_sizes, expand_builtin_strncat): Likewise.
        * calls.c (maybe_warn_nonstring_arg): Likewise.
        * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Likewise.  Reset
        minimum length if maximum lengh is unknown.
        * gimple-ssa-sprintf.c (get_string_length): Likewise.  Drop code
        that used c_strlen, it's no longer needed.  Restructure slightly.
        (format_string): Set unlikely range appropriately.
        * gimple-fold.c (get_range_strlen): Update comments.  Fix minor
        formatting issues.
        (get_range_strlen): Accept c_strlen_data pointer for external
        call sites as well.  Pass through to call to internal get_range_strlen.
        Adjust minlen, maxlen and maxbound as needed.
        (get_maxval_strlen): Update comments.
        (gimple_fold_builtin_strlen): Update call to get_range_strlen
        to use c_strlen_data pointer.  Change variable accesses to instead
        use c_strlen_data data members.

        * gimple-fold.c (get_range_strlen): Update prototype.
        (get_range_strlen_tree): Update prototype.  Drop minlen/maxlen
        local variables.  Use pdata to return information to caller.
        Update calls to get_range_strlen.  Update pdata->maxbound.
        (get_range_strlen -- static version): Similarly.
        (get_range_strlen -- extern version): Update for internal
        get_range_strlen API change.  Convert to external data format.
        (get_maxval_strlen): Similarly.

2019-01-01  Jan Hubicka  <hubicka@ucw.cz>

        * coverage.c (get_coverage_counts): Use current_function_decl.
        * profile.c (read_thunk_profile): New function.
        (branch_prob): Add THUNK parameter.
        * tree-profile.c (tree_profiling): Handle thunks.
        * value-prof.c (init_node_map): Handle thunks.
        * value-prof.h (branch_prob): Upate prototype.
        (read_thunk_profile): Declare.

2019-01-01  Jakub Jelinek  <jakub@redhat.com>

        Update copyright years.

        * gcc.c (process_command): Update copyright notice dates.
        * gcov-dump.c (print_version): Ditto.
        * gcov.c (print_version): Ditto.
        * gcov-tool.c (print_version): Ditto.
        * gengtype.c (create_file): Ditto.
        * doc/cpp.texi: Bump @copying's copyright year.
        * doc/cppinternals.texi: Ditto.
        * doc/gcc.texi: Ditto.
        * doc/gccint.texi: Ditto.
        * doc/gcov.texi: Ditto.
        * doc/install.texi: Ditto.
        * doc/invoke.texi: Ditto.
\f
Copyright (C) 2019 Free Software Foundation, Inc.

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are permitted in any medium without royalty provided the copyright
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