2012-05-18 Andrew Stubbs <ams@codesourcery.com>

[thirdparty/gcc.git] / gcc / ChangeLog

2012-05-18  Andrew Stubbs  <ams@codesourcery.com>

        * config/arm/arm-protos.h (arm_emit_coreregs_64bit_shift): New
        prototype.
        * config/arm/arm.c (arm_emit_coreregs_64bit_shift): New function.
        * config/arm/arm.md (ashldi3): Use arm_emit_coreregs_64bit_shift.
        (ashrdi3,lshrdi3): Likewise.
        (arm_cond_branch): Remove '*' to enable gen_arm_cond_branch.

2012-05-18  Meador Inge  <meadori@codesourcery.com>

        PR rtl-optimization/53352
        * cse.c (equiv_constant): Ignore paradoxical subregs.

2012-05-17  Steven Bosscher  <steven@gcc.gnu.org>

        PR rtl-optimization/53125
        * regstat.c (regstat_bb_compute_ri): Take new local_live_last_luid
        argument.  Simplify calculation of REG_LIVE_LENGTH for regnos that
        die in the basic block.  Correctly top off REG_FREQ and
        REG_FREQ_CALLS_CROSSED.
        Remove do_not_gen.
        (regstat_compute_ri): Allocate and free local_live_last_luid.
        Remove do_not_gen.
        (regstat_bb_compute_calls_crossed): Correctly top off
        REG_FREQ_CALLS_CROSSED.

2012-05-17  Jan Hubicka  <jh@suse.cz>

        * lto-symtab.c (lto_symtab_resolve_symbols): Preffer decl with constructor
        over decl without.
        * cgraph.c (cgraph_remove_node): Clear also body of unanalyzed nodes.
        * cgraph.h (varpool_can_remove_if_no_refs): Handle external correctly.
        * cgraphunit.c (process_function_and_variable_attributes): Finalize 
        extrnal decls.
        (mark_functions_to_output): Also accept bodies for functions with clones.
        (output_in_order): Skip external vars.
        * lto-cgraph.c (lto_output_node): External functions are never in other
        partition.
        (lto_output_varpool_node): Likewise.
        * lto-streamer-out.c (lto_write_tree): Always use error_mark_nodes for
        forgotten initializers.
        * ipa.c (process_references): Handle external vars.
        (symtab_remove_unreachable_nodes): Update to handle external vars.
        (varpool_externally_visible_p): External vars are externally visible.
        * gimple-fold.c (can_refer_decl_in_current_unit_p): Update.
        * varpool.c (varpool_remove_node): Remove constructor.
        (decide_is_variable_needed): Handle externals.
        (varpool_remove_unreferenced_decls): Likewise.

2012-05-17  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * opts.c (common_handle_option): -pedantic-errors enables -Wpedantic.
        (enable_warning_as_error): Do not special case Wuninitialized.
        * optc-gen.awk: Add sanity checks.

2012-05-17  Jan Hubicka   <jh@suse.cz>

        * ipa-reference.c (is_proper_for_analysis): Do not check flags
        that might change as result of global optimization.
        (analyze_function): Do not check analyzed and externally_visible
        flags; be happy about address dereferences.
        (propagate): Prune all_module_statics so it really contains just
        statics; prune all the local summaries.
        (ipa_reference_write_optimization_summary): Simplify.

2012-05-17  Kwok Cheung Yeung  <kcy@codesourcery.com>

        * config/m68k/m68k-devices.def: Add 51ag, 51je, 51jf, 51jg, 51mm,
        51qm.
        * config/m68k/m68k-tables.opt: Regenerated.
        * doc/invoke.texi (M680x0 Options): Document.

2012-05-16  Dave Boutcher  <daveboutcher@gmail.com>
            Patrick Marlier  <patrick.marlier@gmail.com>

        * trans-mem.c (ipa_tm_transform_clone): Transform functions with
        indirect calls.

2012-05-16  H.J. Lu  <hongjiu.lu@intel.com>

        * configure: Regenerated.

2012-05-16  Andrew Pinski  <apinski@cavium.com>

        * gimple-fold.c (get_maxval_strlen): Move COND_EXPR handling under
        GIMPLE_ASSIGN.

2012-05-16  David S. Miller  <davem@davemloft.net>

        * jump.c (delete_related_insns): If we remove a CALL, make sure
        we delete it's NOTE_INSN_CALL_ARG_LOCATION note too.

2012-05-16  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/53217
        * tree-ssa-reassoc.c (bip_map): New static variable.
        (possibly_move_powi): Move feeding multiplies with __builtin_powi call.
        (attempt_builtin_powi): Save feeding multiplies on a stack.
        (reassociate_bb): Create and destroy bip_map.

2012-05-16  Olivier Hainque  <hainque@adacore.com>

        * Makefile.in (install-no-fixedincludes): New target, former toplevel
        gcc-no-fixedincludes. Stash "include-fixed" in addition to "include".
        Add comments and improve stamp preservation across the whole sequence.
        (stmp-int-hdrs): Use move-if-change + cp -p to setup fix_dir/limits.h.

2012-05-16  Richard Guenther  <rguenther@suse.de>

        * tree-inline.c (insert_init_stmt): Do not call
        mark_symbols_for_renaming.
        (setup_one_parameter): Avoid initializing unused parameters.
        (declare_return_variable): Properly handle DECL_BY_REFERENCE
        return vars in SSA form.

2012-05-16  Richard Guenther  <rguenther@suse.de>

        * tree-flow.h (get_virtual_var): Remove.
        * tree-dfa.c (get_virtual_var): Likewise.

2012-05-16  Richard Guenther  <rguenther@suse.de>

        * tree-vect-loop-manip.c (slpeel_update_phi_nodes_for_guard1):
        Remove set-only bitmap of new names.
        (slpeel_tree_peel_loop_to_edge): Likewise.  Do not set
        CFG hooks.
        * tree-flow.h (ssa_names_to_replace): Remove.
        * tree-into-ssa.c (ssa_names_to_replace): Likewise.

2012-05-16  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53364
        * tree-ssa-alias.c (indirect_ref_may_alias_decl_p): Properly
        detect a view-conversion of the decl.

2012-05-16  Dodji Seketeli  <dodji@redhat.com>

        PR preprocessor/7263
        * c-tree.h (enum c_declspec_word): Declare new enum.
        (struct c_declspecs::locations): New member.
        (declspecs_add_qual, declspecs_add_scspec)
        (declspecs_add_addrspace, declspecs_add_alignas): Take a new
        location parameter.
        * c-decl.c (build_null_declspecs): Initialize the new struct
        c_declspecs::locations member.
        (declspecs_add_addrspace): Take a location parameter for the
        address space.  Store it onto declaration specifiers.
        (declspecs_add_qual): Likewise, take a location parameter for the
        qualifier.
        (declspecs_add_type): Likewise, take a location parameter for the
        type specifier.
        (declspecs_add_scspec): Likewise, take a location parameter for
        the storage class specifier.
        (declspecs_add_attrs): Likewise, take a location parameter for the
        first attribute.
        (declspecs_add_alignas): Likewise, take a location parameter for
        the alignas token.
        (finish_declspecs): For diagnostics, use the location of the
        relevant declspec, instead of the global input_location.
        * c-parser.c (c_parser_parameter_declaration): Pass the precise
        virtual location of the declspec to the declspecs-setters.
        (c_parser_declspecs): Likewise.  Avoid calling c_parser_peek_token
        repeatedly.

2012-05-16  Igor Zamyatin  <igor.zamyatin@intel.com>

        * configure.ac: Stack protector enabling for Android targets.
        * configure: Regenerate.

2012-05-16  Richard Sandiford  <r.sandiford@uk.ibm.com>

        * ira.c (pseudo_move_insn): Delete.
        (find_moveable_pseudos): Don't set it.
        (move_unallocated_pseudos): Use DF_REG_DEF_CHAIN to find
        the definitions of the original pseudo.  Delete all of them.

2012-05-16  Olivier Hainque  <hainque@adacore.com>

        * config/rs6000/rs6000-opts.h (enum processor_type): Add
        PROCESSOR_PPC8548.
        * config/rs6000/rs6000-cpus.def: Reference it for cpu="8548".
        * config/rs6000/rs6000.md (cpu attribute definition): Add ppc8548.
        * config/rs6000/8540.md: indicate that the units/patterns apply to
        ppc8548 as well.

        * config/rs6000/rs6000.c (rs6000_option_override_internal): Rename
        default_cpu into implicit_cpu, conveying what --with-cpu was passed at
        configure time. Treat implicit_cpu as have_CPU. Pick defaults for SPE
        related flags,  check that what is queried is supported by the selected
        configuration. Rework the single/double_float and MASK_STRING resets to
        hit for all the E500 cores (854x + E500MC variants). Select the ppc8540
        costs for PROCESSOR_PPC8548 as well.
        (rs6000_issue_rate): case CPU_PPC8548 together with CPU_PPC8540.
        (rs6000_use_sched_lookahead): Likewise, rewriting function as a case
        statement instead of a sequence of ifs.

        * config/rs6000/rs6000.h (TARGET_E500): Remove.
        (TARGET_NO_LWSYNC): Adjust accordingly.
        * config/rs6000/e500.h (TARGET_E500): Remove.
        (CHECK_E500_OPTIONS): Adjust accordingly.
        * config/rs6000/eabispe.h (SUBSUBTARGET_OVERRIDE_OPTIONS): Remove.
        (TARGET_DEFAULT): Reformat definition to match the one in linuxspe.h.
        * config/rs6000/linuxspe.h: Likewise.
        * config/rs6000/vxworks.h: Remove bogus TARGET_E500 overrides and
        superfluous comments.
        * config/rs6000/e500-double.h: Remove.

        * config.gcc (pick a default with_cpu): For powerpc*-*-*spe*,
        default to with_cpu=8548 if --enable-e500-double, and to 8540
        otherwise.
        (set misc flags section): For powerpc*|rs6000*, remove inclusion
        of e500-double.h for --enable-e500-double.

2012-05-16  Olivier Hainque  <hainque@adacore.com>

        * Makefile.in (s-header-vars): Resort to -n instead of trailing
        -e d in sed invocation.

2012-05-16  Hans-Peter Nilsson  <hp@axis.com>

        * doc/tm.texi.in (Type Layout) <SIZE_TYPE>: Update reference to
        source-code.
        * doc/tm.texi: Regenerate.

2012-05-15  Paolo Carlini  <paolo.carlini@oracle.com>

        * tree.h (EXPR_LOCATION): Use CAN_HAVE_LOCATION_P.

2012-05-15  Jakub Jelinek  <jakub@redhat.com>

        PR target/53358
        * config/i386/i386.md (*addqi_2 peephole with QImode addition): Check
        that operands[2] is either immediate, or q_regs_operand.

2012-05-15  Richard Guenther  <rguenther@suse.de>

        * cgraphunit.c (thunk_adjust): Use make_rename_temp.
        (assemble_thunk): Likewise.  Manually rename and register
        function arguments.

2012-05-15  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53355
        * tree-vrp.c (extract_range_from_binary_expr_1): Handle LSHIFT_EXPRs
        by constants.

2012-05-15  Tristan Gingold  <gingold@adacore.com>

      * tree-ssa-strlen.c (get_string_length): Convert lhs if needed.

2012-05-15  Richard Guenther  <rguenther@suse.de>

        * gimple.c (gimple_set_modified): Move ...
        * gimple.h (gimple_set_modified): ... here.

2012-05-15  Tristan Gingold  <gingold@adacore.com>

        * ira-color.c (move_spill_restore): Add a guard.

2012-05-15  Tristan Gingold  <gingold@adacore.com>

        * config/ia64/ia64.c (ia64_emit_probe_stack_range): Adjust calls to
        plus_constant.

2012-05-15  Eric Botcazou  <ebotcazou@adacore.com>

        * gimplify.c (gimplify_init_constructor): Do a block move for very
        small objects as well.

2012-05-15  Bernd Schmidt  <bernds@codesourcery.com>

        * ira.c (find_moveable_pseudos): Skip registers whose
        DF_REG_EQ_USE_COUNT is nonzero.

2012-05-15  Kenneth Zadeck  <zadeck@naturalbridge.com>

        * doc/md.texi (fma): Define to only be applicable for single
        rounding.

2012-05-14  Uros Bizjak  <ubizjak@gmail.com>

        PR target/46098
        * config/i386/i386.c (ix86_expand_special_args_builtin): Always
        generate target register for "load" class builtins.

        Revert:
        2010-10-22  Uros Bizjak  <ubizjak@gmail.com>

        PR target/46098
        * config/i386/sse.md (*avx_movu<ssemodesuffix><avxmodesuffix>):
        Rename from avx_movu<ssemodesuffix><avxmodesuffix>.
        (avx_movu<ssemodesuffix><avxmodesuffix>): New expander.
        (*<sse>_movu<ssemodesuffix>): Rename from <sse>_movu<ssemodesuffix>.
        (<sse>_movu<ssemodesuffix>): New expander.
        (*avx_movdqu<avxmodesuffix>): Rename from avx_movdqu<avxmodesuffix>.
        (avx_movdqu<avxmodesuffix>): New expander.
        (*sse2_movdqu): Rename from sse2_movdqu.
        (sse2_movdqu): New expander.

2012-05-14  Marc Glisse  <marc.glisse@inria.fr>

        PR target/52607
        * config/i386/i386.c (ix86_expand_vec_perm_const): Move code to ...
        (canonicalize_perm): ... new function.
        (expand_vec_perm_2vperm2f128_vshuf): New function.
        (ix86_expand_vec_perm_const_1): Call it.

2012-05-14  Andrew Pinski  <apinski@cavium.com>
            H.J. Lu  <hongjiu.lu@intel.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR target/53315
        * config/i386/i386.md (xbegin_1): Use + in constraint and match_dup.
        (xbegin): Updated.

2012-05-14  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (dwarf2out_define, dwarf2out_undef): Treat
        lineno 1 the same as lineno 0 before first start file directive.
        (optimize_macinfo_range): Likewise.

        * dwarf2out.c (have_macinfo): Define.
        (dwarf2out_finish): Don't emit DW_AT_GNU_macros or DW_AT_macro_info
        attribute, don't force empty compilation unit and don't emit any
        .debug_macinfo/.debug_macro section if macinfo_table is empty.

2012-05-14  Georg-Johann Lay  <avr@gjlay.de>

        PR target/53344
        * config/avr/avr.c (avr_const_address_lo16): Remove.
        (avr_assemble_integer):  Print ".byte lo8(x)",
        ".byte hi8(x)", ".byte hh8(x)" instead of emit an assembler
        .warning if 3-byte address is assembled. 
        * doc/extend.texi (AVR Named Address Spaces): Document that
        binutils 2.23 is needed to assemble 3-byte addresses.

2012-05-14  Richard Guenther  <rguenther@suse.de>

        * tree-vect-data-refs.c (vect_setup_realignment): Remove
        call to mark_symbols_for_renaming.
        (vect_permute_load_chain): Likewise.
        * tree-vect-loop.c (vect_is_slp_reduction): Update stmt
        instead of calling mark_symbols_for_renaming.
        * tree-vect-stmts.c (read_vector_array): Remove call to
        mark_symbols_for_renaming.
        (write_vector_array): Likewise.
        (vectorizable_call): Likewise.
        (vectorizable_store): Likewise.
        (vectorizable_load): Likewise.
        * matrix-reorg.c (transform_allocation_sites): Likewise.
        * tree-ssa-pre.c (create_expression_by_pieces): Likewise.
        (create_expression_by_pieces): Likewise.

2012-05-14  Richard Guenther  <rguenther@suse.de>

        * gimplify.c (gimple_regimplify_operands): Only mark the LHS
        of statements for renaming.
        (force_gimple_operand_1): Likewise, consistently for both
        calls to force_gimple_operand and force_gimple_operand_gsi.

2012-05-14  Richard Guenther  <rguenther@suse.de>

        * tree-dfa.c (make_rename_temp): Be forgiving if not in SSA form.
        * omp-low.c (expand_omp_taskreg): Properly conditionalize call
        to update_ssa.
        (expand_omp_for): Likewise.
        (expand_omp_for_generic): Adjust conditional add to referenced vars.
        Use make_rename_temp for temporaries that should be rewritten into
        SSA form.
        (expand_omp_for_static_nochunk): Likewise.
        (expand_omp_atomic_pipeline): Likewise.

2012-05-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53331
        * tree-vect-data-refs.c (vect_verify_datarefs_alignment): Ignore
        strided loads.
        * tree-vect-stmts.c (vect_model_load_cost): Handle strided loads.

2012-05-14  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR 53063
        * doc/options.texi: (LangEnabledBy): Document it.
        * optc-gen.awk: Handle LangEnabledBy.
        * opth-gen.awk: Generate declaration for lang-specific functions.
        * opt-read.awk: Record lang numbers.
        * opt-functions.awk (flag_set_p): Ignore the arguments of flags.
        (lang_sanitized_name): New.

2012-05-14  Bernd Schmidt  <bernds@codesourcery.com>

        * attribs.c (decl_attributes): Avoid emitting a warning if
        ATTR_FLAG_BUILT_IN.
        * doc/rtl.texi (CALL_INSN_FUNCTION_USAGE): Use lowercase for rtx
        codes.  Document meaning of sets inside CALL_INSN_FUNCTION_USAGE.
        * builtin-attrs.def (DEF_ATTR_FOR_STRING): Define.  Use it to
        define a string "1".
        (ATTR_RET1_NOTHROW_NONNULL_LEAF): New attr definition.
        * builtins.def (BUILT_IN_MEMCPY, BUILT_IN_MEMMOVE, BUILT_IN_MEMSET,
        BUILT_IN_STRCPY): Use it for these functions.
        * postreload.c (reload_combine): Deal with SETs inside
        CALL_INSN_FUNCTION_USAGE.
        * caller-save.c (setup_save_areas, save_call_clobbered_regs):
        Look for REG_RETURNED notes and use a cheap restore if possible.
        * ira-int.h (struct ira_allocno): New member cheap_calls_crossed_num.
        (ALLOCNO_CHEAP_CALLS_CROSSED_NUM): New macro.
        * ira-build.c (ira_create_allocno, create_cap_allocno,
        propagate_allocno_info, propagate_some_info_from_allocno,
        copy_info_to_removed_store_destination, ira_flattening): Handle it.
        * ira-lives.c (pseudo_regno_single_word_and_live_p,
        find_call_crossed_cheap_reg): New static functions.
        (process_bb_node_lives): Look for SETs in CALL_INSN_FUNCTION_USAGE,
        and set ALLOCNO_CHEAP_CALLS_CROSSED_NUM if possible.  Also make
        a REG_RETURNED note in that case.
        * ira.c (setup_reg_renumber): Change assert to allow cases where
        allocnos only cross calls for which they are cheap to restore.
        * ira-costs.c (ira_tune_allocno_costs): Compare
        ALLOCNO_CALLS_CROSSED_NUM to ALLOCNO_CHEAP_CALLS_CROSSED_NUM rather
        than 0.
        * reg-notes.def (REG_RETURNED): New note.
        * cse.c (cse_insn): Likewise.
        * sched-deps.c (sched_analyze_insn): Likewise.
        * expr.c (init_block_move_fn): Set a "fn spec" attribute.
        * calls.c (decl_return_flags): New static function.
        (expand_call): Generate a SET in CALL_INSN_FUNCTION_USAGE for
        functions that return one of their arguments.
        * regcprop.c (struct kill_set_value_data): New.
        (kill_set_value): Interpret data as a pointer to such a struct.
        Do nothing if the caller wants the register to be ignored.
        (copyprop_hardreg_forward_1): Handle SETs in CALL_INSN_FUNCTION_USAGE.

2012-05-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53340
        * tree-ssa-pre.c (op_valid_in_sets): Fix error in last commit.

2012-05-14  Richard Guenther  <rguenther@suse.de>

        * gimplify.c (gimplify_expr): Remove odd code.

2012-05-14  Eric Botcazou  <ebotcazou@adacore.com>

        * stor-layout.c (bit_from_pos): Distribute conversion to bitsizetype
        into a PLUS_EXPR byte offset.

        * tree-ssa-pre.c (can_value_number_call): Delete.
        (compute_avail): Skip all statements with side effects.
        <GIMPLE_CALL>: Skip calls to internal functions.

2012-05-13  Steven Bosscher  <steven@gcc.gnu.org>

        * config/pa/pa.md: Use define_c_enum for "unspec" and "unspecv".

2012-05-13  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * common.opt (Wtype-limits): Use EnabledBy.

2012-05-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*pushtf): Enable for TARGET_SSE.
        (pushtf splitter): Ditto.
        (movtf): Ditto.
        (*movtf_internal): Ditto. Use V4SFmode for !TARGET_SSE2.
        (<code>tf2): Enable for TARGET_SSE.
        (*absnegtf2_sse): Ditto.
        (copysign<mode>3): Enable TFmode for TARGET_SSE.
        (copysign<mode>3_const): Ditto.
        (copysign<mode>3_var): Ditto.
        * config/i386/sse.md (<code>tf3): Enable for TARGET_SSE.
        (*andnottf3): Ditto.  Use V4SFmode for !TARGET_SSE2.
        (*<code>tf3): Ditto.
        * config/i386/i386.c (struct builtin_description bdesc_args)
        <IX86_BUILTIN_FABSQ>: Enable for TARGET_SSE.
        <IX86_BUILTIN_COPYSIGNQ>: Ditto.
        (ix86_expand_builtin) <IX86_BUILTIN_FABSQ, IX86_BUILTIN_COPYSIGNQ>:
        Emit a normal call if SSE isn't available.

2012-05-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (<sse>_andnot<mode>3): Handle
        TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL.
        (<code><mode>3): Ditto.
        (*andnot<mode>3): Ditto.
        (*andnottf3): Ditto.
        (*<code><mode>3): Ditto.
        (<code>tf3): Ditto.

2012-05-13  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * optc-gen.awk: Error instead of warning for conflicting help.

2012-05-12  Jason Merrill  <jason@redhat.com>

        PR debug/53235
        * dwarf2out.c (build_local_stub): Prefer DW_AT_signature for
        comdat types.

2012-05-12  Eric Botcazou  <ebotcazou@adacore.com>

        * function.c (requires_stack_frame_p): If the function can throw
        non-call exceptions, return true if the insn can throw internally.

2012-05-12  Paolo Carlini  <paolo.carlini@oracle.com>

        * doc/generic.texi: Rename TYPE_PTRMEM_P to TYPE_PTRDATAMEM_P.

2012-05-12  Uros Bizjak  <ubizjak@gmail.com>

        * config/alpha/alpha.c (alpha_emit_conditional_branch): Handle
        ORDERED and UNORDERED conditions.

2012-05-11  Richard Guenther  <rguenther@suse.de>

        * tree-flow.h (referenced_var_check_and_insert): Remove.
        (find_new_referenced_vars): Likewise.
        * tree-dfa.c (referenced_var_check_and_insert): Make static.
        (find_new_referenced_vars_1, find_new_referenced_vars): Remove.
        * tree-inline.c (copy_bb): Use find_referenced_vars_in
        instead of find_new_referenced_vars.
        * gimple-fold.c (gimplify_and_update_call_from_tree): Likewise.

2012-05-11  Richard Guenther  <rguenther@suse.de>

        * tree-pass.h (pass_rest_of_compilation,
        pass_all_optimizations, pass_postreload, pass_all_early_optimizations):
        Remove.
        * passes.c (pass_all_optimizations, pass_postreload,
        pass_all_early_optimizations): Make static.
        (pass_rest_of_compilation): Likewise.  Make it an RTL_PASS.
        * tree-phinodes.c (init_phinodes, fini_phinodes): Remove.
        * tree-ssa.c (init_tree_ssa): Do not call init_phinodes.
        (delete_tree_ssa): Do not call fini_phinodes.
        * tree-flow.h (init_phinodes, fini_phinodes): Remove.

2012-05-11  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR 53063
        * doc/options.texi (EnabledBy): Document
        * opts.c: Include opts.h and options.h before tm.h.
        (finish_options): Do not handle some sub-options here...
        (common_handle_option): ... instead call common_handle_option_auto here.
        * optc-gen.awk: Handle EnabledBy.
        * opth-gen.awk: Declare common_handle_option_auto.
        * common.opt (Wuninitialized): Use EnabledBy. Delete Init.
        (Wmaybe-uninitialized): Likewise.
        (Wunused-but-set-variable): Likewise.
        (Wunused-function): Likewise.
        (Wunused-label): Likewise.
        (Wunused-value): Likewise.
        (Wunused-variable): Likewise.
        * opt-read.awk: Create opt_numbers array.

2012-05-11  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53295
        * tree-data-ref.h (stride_of_unit_type_p): Handle non-constant
        strides.
        * tree-data-ref.c (dr_analyze_innermost): Allow non-constant
        strides when analyzing data-references in a loop context.
        * tree-vect-data-refs.c (vect_mark_for_runtime_alias_test): Reject
        non-constant strides for now.
        (vect_enhance_data_refs_alignment): Ignore data references
        that are strided loads.
        (vect_analyze_data_ref_access): Handle non-constant strides.
        (vect_check_strided_load): Verify the data-reference is a load.
        (vect_analyze_data_refs): Restructure to make strided load
        support not dependent on gather support.
        * tree-vect-stmts.c (vectorizable_load): Avoid useless work
        when doing strided or gather loads.
        * tree-vect-loop-manip.c (vect_vfa_segment_size): Use
        integer_zerop to compare stride with zero.

2012-05-11  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/driver-i386.c (host_detect_local_cpu): Support RTM.

2012-05-11  Jan Hubicka  <jh@suse.cz>

        PR bootstrap/53300
        * varpool.c (varpool_assemble_decl): Also output constat pool entries
        that output_constant_pool missed.

2012-05-11  Mingjie Xing  <mingjie.xing@gmail.com>

        * config/mips/t-vxworks: Change MUTLILIB_EXTRA_OPTS to
        MULTILIB_EXTRA_OPTS.

2012-05-11  Uros Bizjak  <ubizjak@gmail.com>

        PR target/53291
        * config/i386/i386.md (xtest): Use NE condition in ix86_expand_setcc.

2012-05-11  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*movti_internal_rex64): Avoid MOVAPS size
        optimization for TARGET_AVX.
        (*movti_internal_sse): Ditto.
        (*movdi_internal_rex64): Handle TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL.
        (*movdi_internal): Ditto.
        (*movsi_internal): Ditto.
        (*movtf_internal): Avoid MOVAPS size optimization for TARGET_AVX.
        (*movdf_internal_rex64): Ditto.
        (*movfd_internal): Ditto.
        (*movsf_internal): Ditto.
        * config/i386/sse.md (mov<mode>): Handle TARGET_SSE_LOAD0_BY_PXOR.

2012-05-10  Eric Botcazou  <ebotcazou@adacore.com>

        * dwarf2out.c (add_byte_size_attribute) <RECORD_TYPE>: Handle variable
        reference as size attribute.

2012-05-10  Eric Botcazou  <ebotcazou@adacore.com>
            Tristan Gingold  <gingold@adacore.com>

        * doc/md.texi (Standard Names): Document probe_stack_address.
        * explow.c (emit_stack_probe): Handle probe_stack_address.
        * config/ia64/ia64.md (UNSPECV_PROBE_STACK_ADDRESS): New constant.
        (UNSPECV_PROBE_STACK_RANGE): Likewise.
        (probe_stack_address): New insn.
        (probe_stack_range): Likewise.
        * config/ia64/ia64.c: Include common/common-target.h.
        (ia64_compute_frame_size): Mark r2 and r3 as used if static stack
        checking is enabled.
        (ia64_emit_probe_stack_range): New function.
        (output_probe_stack_range): Likewise.
        (ia64_expand_prologue): Invoke ia64_emit_probe_stack_range if static
        builtin stack checking is enabled.
        (rtx_needs_barrier) <UNSPEC_VOLATILE>: Handle UNSPECV_PROBE_STACK_RANGE
        and UNSPECV_PROBE_STACK_ADDRESS.
        (unknown_for_bundling_p): New predicate.
        (group_barrier_needed): Use important_for_bundling_p.
        (ia64_dfa_new_cycle): Use unknown_for_bundling_p.
        (issue_nops_and_insn): Likewise.
        (bundling): Likewise.
        (final_emit_insn_group_barriers): Likewise.
        * config/ia64/ia64-protos.h (output_probe_stack_range): Declare.
        * config/ia64/hpux.h (STACK_CHECK_STATIC_BUILTIN): Define.
        (STACK_CHECK_PROTECT): Likewise.
        * config/ia64/linux.h (STACK_CHECK_STATIC_BUILTIN): Likewise.

2012-05-10  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (update_all_callee_keys): Remove.
        (inline_small_functions): Simplify priority updating.

2012-05-10  Jan Hubicka  <jh@suse.cz>

        * ipa.c (symtab_remove_unreachable_nodes): Fix marking of clones.

2012-05-10  Jan Hubicka  <jh@suse.cz>

        * cgraph.h (cgraph_remove_unreachable_nodes): Rename to ...
        (symtab_remove_unreachable_nodes): ... this one.
        * ipa-cp.c (ipcp_driver): Do not remove unreachable nodes.
        * cgraphunit.c (ipa_passes): Update.
        * cgraphclones.c (cgraph_materialize_all_clones): Update.
        * cgraph.c (cgraph_release_function_body): Only turn initial
        into error mark when initial was previously set.
        * ipa-inline.c (ipa_inline): Update.
        * ipa.c: Include ipa-inline.h
        (enqueue_cgraph_node, enqueue_varpool_node): Remove.
        (enqueue_node): New function.
        (process_references): Update.
        (symtab_remove_unreachable_nodes): Cleanup.
        * passes.c (execute_todo, execute_one_pass): Update.

2012-05-10  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/53125
        * ira.c (ira): Call find_moveable_pseudos and
        move_unallocated_pseudos if only ira_conflicts_p is true.

2012-05-10  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*movoi_internal_avx): Handle
        TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL and TARGET_SSE_TYPELESS_STORES.
        (*movti_internal_rex64): Handle TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL.
        (*movti_internal_sse): Ditto.
        (*movtf_internal): Ditto.
        * config/i386/sse.md (ssePSmode): New mode attribute.
        (*move<mode>_internal): Use ssePSmode.
        (*<sse>_movu<ssemodesuffix><avxsizesuffix>): Ditto.
        (*<sse2>_movdqu<avxsizesuffix>): Ditto.
        * config/i386/i386.c (standard_sse_constant_opcode): Do not handle
        TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL here.

2012-05-10  Eric Botcazou  <ebotcazou@adacore.com>

        * gimplify.c (gimplify_decl_expr): For a TYPE_DECL, also gimplify the
        DECL_ORIGINAL_TYPE if it is present.

2012-05-10  Nick Clifton  <nickc@redhat.com>

        PR target/53120
        * config/m32c/bitops.md (bset_qi): Change operand 2 from having
        a "0" constraint to being a (match_dup 0).

2012-05-10  Richard Guenther  <rguenther@suse.de>

        * stor-layout.c (byte_from_pos): Amend comment.

2012-05-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * doc/extend.texi (X86 Built-in Functions, __builtin_cpu_init):
        Document requirement to call in constructors.

        * config/i386/i386.c: Update comments for i386-cpuinfo.c name change.

2012-05-10  Richard Guenther  <rguenther@suse.de>

        * tree.h (TYPE_IS_SIZETYPE): Remove.
        * fold-const.c (int_const_binop_1): Remove TYPE_IS_SIZETYPE use.
        (extract_muldiv_1): Likewise.
        * gimple.c (gtc_visit): Likewise.
        (gimple_types_compatible_p): Likewise.
        (iterative_hash_canonical_type): Likewise.
        (gimple_canonical_types_compatible_p): Likewise.
        * gimplify.c (gimplify_one_sizepos): Likewise.
        * print-tree.c (print_node): Likewise.
        * stor-layout.c (initialize_sizetypes): Do not set TYPE_IS_SIZETYPE.

2012-05-09  Uros Bizjak  <ubizjak@gmail.com>

        PR target/52908
        * config/i386/sse.md (vec_widen_smult_hi_v4si): Expand using
        xop_pmacsdqh insn pattern instead of xop_mulv2div2di3_high.
        (vec_widen_smult_lo_v4si): Expand using xop_pmacsdql insn pattern
        instead of xop_mulv2div2di3_low.
        (xop_p<macs>dql): Fix vec_select selector.
        (xop_p<macs>dqh): Ditto.
        (xop_mulv2div2di3_low): Remove insn_and_split pattern.
        (xop_mulv2div2di3_high): Ditto.

2012-05-09  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR c++/53289
        * diagnostic.h (diagnostic_context): Add last_location.
        * diagnostic.c (diagnostic_initialize): Initialize it.
        (diagnostic_show_locus): Use it.

2012-05-09  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * doc/extend.texi (Function Attributes): Point xref to section
        about Pragmas.

2012-05-09  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (*movdf_internal_rex64): Remove
        TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL handling from asm output code.
        Calculate "mode" attribute according to
        TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL flag.
        (*movdf_internal): Ditto.

2012-05-09  Uros Bizjak  <ubizjak@gmail.com>

        PR target/44141
        * config/i386/i386.c (ix86_expand_vector_move_misalign): Do not handle
        128 bit vectors specially for TARGET_AVX.  Emit sse2_movupd and
        sse_movupd RTXes for TARGET_AVX, TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL
        or when optimizing for size.
        * config/i386/sse.md (*mov<mode>_internal): Remove
        TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL handling from asm output code.
        Calculate "mode" attribute according to optimize_function_for_size_p
        and TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL flag.
        (*<sse>_movu<ssemodesuffix><avxsizesuffix>): Choose asm template
        depending on the mode of the instruction.  Calculate "mode" attribute
        according to optimize_function_for_size_p, TARGET_SSE_TYPELESS_STORES
        and TARGET_SSE_PACKED_SINGLE_INSN_OPTIMAL flags.
        (*<sse2>_movdqu<avxsizesuffix>): Ditto.

2012-05-09  Georg-Johann Lay  <avr@gjlay.de>

        PR target/53256
        * config/avr/elf.h (ASM_DECLARE_FUNCTION_NAME): Remove.
        * config/avr/avr-protos.h (avr_asm_declare_function_name): Remove.
        * config/avr/avr.h (struct machine_function): Add attributes_checked_p.
        * config/avr/avr.c (avr_asm_declare_function_name): Remove.
        (expand_prologue): Move initialization of cfun->machine->is_naked,
        is_interrupt, is_signal, is_OS_task, is_OS_main from here to...
        (avr_set_current_function): ...this new static function.
        (TARGET_SET_CURRENT_FUNCTION): New define.
        (avr_function_ok_for_sibcall): Use cfun->machine->is_* instead of
        checking attributes of current_function_decl.
        (avr_regs_to_save): Ditto.
        (signal_function_p): Rename to avr_signal_function_p.
        (interrupt_function_p): Rename to avr_interrupt_function_p.

        * doc/extend.texi (Function Attributes): Better explanation of
        'interrupt' and 'signal' for AVR. Move 'ifunc' down to establish
        alphabetical order.

2012-05-09  Michael Matz  <matz@suse.de>

        PR tree-optimization/53185
        * tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Disable
        peeling when we see strided loads.

2012-05-09  Matthias Klose  <doko@ubuntu.com>

        * gcc-ar.c (main): Don't check for execute bits for the plugin.

2012-05-09  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        * tree-ssa-loop-ivopts.c (add_autoinc_candidates, get_address_cost):
        Replace use of HAVE_{POST/PRE}_{INCREMENT/DECREMENT} with
        USE_{LOAD/STORE}_{PRE/POST}_{INCREMENT/DECREMENT} appropriately.
        * config/arm/arm.h (ARM_AUTOINC_VALID_FOR_MODE_P): New.
        (USE_LOAD_POST_INCREMENT): Define.
        (USE_LOAD_PRE_INCREMENT): Define.
        (USE_LOAD_POST_DECREMENT): Define.
        (USE_LOAD_PRE_DECREMENT): Define.
        (USE_STORE_PRE_DECREMENT): Define.
        (USE_STORE_PRE_INCREMENT): Define.
        (USE_STORE_POST_DECREMENT): Define.
        (USE_STORE_POST_INCREMENT): Define.
        (arm_auto_incmodes): Add enumeration.
        * config/arm/arm-protos.h (arm_autoinc_modes_ok_p): Declare.
        * config/arm/arm.c (arm_autoinc_modes_ok_p): Define.

2012-05-09  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/53226
        * tree-ssa-forwprop.c (ssa_forward_propagate_and_combine): Remove
        prev and prev_initialized vars, gimple_set_plf (stmt, GF_PLF_1, false)
        before processing it and gimple_set_plf (stmt, GF_PLF_1, true) if it
        doesn't need to be revisited, look for earliest stmt with
        !gimple_plf (stmt, GF_PLF_1) if something changed.

2012-05-09  Terry Guo  <terry.guo@arm.com>

        * genmultilib: Update copyright dates.
        * doc/fragments.texi: Ditto.

2012-05-09  Terry Guo  <terry.guo@arm.com>

        * Makefile.in (s-mlib): Add new argument MULTILIB_REQUIRED.
        * genmultilib (MULTILIB_REQUIRED): New.
        * doc/fragments.texi: Document the MULTILIB_REQUIRED.

2012-05-09  Richard Guenther  <rguenther@suse.de>

        * tree-vectorizer.h (vect_loop_versioning): Adjust prototype.
        (vect_do_peeling_for_loop_bound): Likewise.
        (vect_do_peeling_for_alignment): Likewise.
        * tree-vect-loop-manip.c (conservative_cost_threshold): Remove.
        (vect_do_peeling_for_loop_bound): Get check_profitability and
        threshold as parameters.
        (vect_do_peeling_for_alignment): Likewise.
        (vect_loop_versioning): Likewise.
        * tree-vect-loop.c (vect_transform_loop): Compute check_profitability
        and threshold here.  Control where to put the check here.

2012-05-09  Richard Sandiford  <rdsandiford@googlemail.com>

        PR middle-end/53249
        * dwarf2out.h (get_address_mode): Move declaration to...
        * rtl.h: ...here.
        * dwarf2out.c (get_address_mode): Move definition to...
        * rtlanal.c: ...here.
        * var-tracking.c (get_address_mode): Delete.
        * combine.c (find_split_point): Use get_address_mode instead of
        targetm.addr_space.address_mode.
        * cselib.c (cselib_record_sets): Likewise.
        * dse.c (canon_address, record_store): Likewise.
        * emit-rtl.c (adjust_address_1, offset_address): Likewise.
        * expr.c (move_by_pieces, emit_block_move_via_loop, store_by_pieces)
        (store_by_pieces_1, expand_assignment, store_expr, store_constructor)
        (expand_expr_real_1): Likewise.
        * ifcvt.c (noce_try_cmove_arith): Likewise.
        * optabs.c (maybe_legitimize_operand_same_code): Likewise.
        * reload.c (find_reloads): Likewise.
        * sched-deps.c (sched_analyze_1, sched_analyze_2): Likewise.
        * sel-sched-dump.c (debug_mem_addr_value): Likewise.

2012-05-09  Maciej W. Rozycki  <macro@codesourcery.com>

        * config/mips/mips.c (mips16_gp_pseudo_reg): Remove line
        information from the instruction produced.

2012-05-09  Richard Guenther  <rguenther@suse.de>

        * stor-layout.c (bit_from_pos): Document.
        (byte_from_pos): Likewise.  Optimize.
        (pos_from_bit): Likewise.
        (normalize_offset): Use pos_from_bit instead of replicating it.

2012-05-09  Alan Modra  <amodra@gmail.com>

        PR target/53271
        * config/rs6000/rs6000.c (gen_frame_set): New function.
        (gen_frame_load, gen_frame_store): New functions.
        (rs6000_savres_rtx): Use the above.
        (rs6000_emit_epilogue, rs6000_emit_prologue): Here too.
        Correct mode used for CR2 in save/restore_world patterns.
        Don't emit instructions for eh_return frame unwind reg info.

2012-05-08  Jan Hubicka  <jh@suse.cz>

        * cgraphbuild.c (build_cgraph_edges): Do not finalize vars
        with VALUE_EXPR.
        * cgraph.h (varpool_can_remove_if_no_refs): Vars with VALUE_EXPR
        are removable.
        * toplev.c (wrapup_global_declaration_2): Vars with VALUE_EXPR
        need to wrapup.
        (compile_file): Do not output variables.
        * cgraphbuild.c (varpool_finalize_decl): When var is finalized late,
        output it.
        * langhooks.c: Include timevar.h
        (write_global_declarations): Finalize compilation unit after wrapup;
        set timevars correctly.
        * passes.c (rest_of_decl_compilation): Decls with VALUE_EXPR needs
        not to be added to varpool.
        * varpool.c (varpool_assemble_decl): Sanity check that we are called
        only on cases where it makes sense; skip constant pool and value expr
        vars.

2012-05-08  David S. Miller  <davem@davemloft.net>

        * config/sparc/linux.h (LINK_SPEC): Don't pass "-Y" option.
        * config/sparc/linux64.h (LINK_ARCH32_SPEC): Likewise.
        * config/sparc/linux64.h (LINK_ARCH64_SPEC): Likewise.

2012-05-08  Richard Sandiford  <rdsandiford@googlemail.com>

        PR rtl-optimization/53278
        * lower-subreg.c (decompose_multiword_subregs): Remove left-over
        speed_p code from earlier patch.

2012-05-08  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/51244
        * config/sh/sh.md (*branch_true, *branch_false): New insns.

2012-05-08  Teresa Johnson  <tejohnson@google.com>

        * gcov-io.h (__gcov_reset, __gcov_dump): Declare.
        * doc/gcov.texi: Add note on using __gcov_reset and __gcov_dump.

2012-05-08  Jan Hubicka  <jh@suse.cz>

        * cgraph.c (cgraph_call_edge_duplication_hooks): Export.
        (cgraph_create_node_1): Rename to ...
        (cgraph_create_empty_node): ... this one; export.
        (cgraph_create_node): Update.
        (cgraph_set_call_stmt_including_clones): Move to cgraphclones.c
        (cgraph_create_edge_including_clones): Likewise.
        (cgraph_find_replacement_node): Likewise.
        (cgraph_clone_edge): Likewise.
        (cgraph_clone_node): Likewise.
        (clone_function_name): Likewise.
        (cgraph_create_virtual_clone): Likewise.
        (cgraph_remove_node_and_inline_clones): Likewise.
        (cgraph_redirect_edge_call_stmt_to_callee): Move here from cgraphunit.c
        * cgraph.h: Reorder declarations so they match file of origin.
        (cgraph_create_empty_node): Declare.
        * cgraphunit.c (update_call_expr): Move to cgraphclones.c
        (cgraph_copy_node_for_versioning): Likewise.
        (cgraph_function_versioning): Likewise.
        (cgraph_materialize_clone): Likewise.
        (cgraph_redirect_edge_call_stmt_to_callee): Likewise.
        (cgraph_materialize_all_clones): Likewise.
        * cgraphclones.c: New file.
        * Makefile.in: Update for cgraphclones.

2012-05-08  Uros Bizjak  <ubizjak@gmail.com>

        PR target/53176
        * config/i386/i386.c (ix86_set_reg_reg_cost): New function.
        (ix86_rtx_costs): Handle SET.

2012-05-08  Michael Matz  <matz@suse.de>

        * basic-block.h (struct rtl_bb_info): Remove visited member and
        move head_ member to ...
        (struct basic_block_def.basic_block_il_dependent): ... the new
        member x, replacing but containing old member rtl.
        (enum bb_flags): New BB_VISITED flag.
        (BB_HEADER, BB_FOOTER): New macros.

        * jump.c (mark_all_labels): Adjust.
        * cfgcleanup.c (try_optimize_cfg): Adjust.
        * cfglayout.c (record_effective_endpoints): Adjust.
        (relink_block_chain): Ditto (and don't fiddle with visited).
        (fixup_reorder_chain): Adjust.
        (fixup_fallthru_exit_predecessor): Ditto.
        (cfg_layout_duplicate_bb): Ditto.
        * combine.c (update_cfg_for_uncondjump): Adjust.
        * bb-reorder.c (struct bbro_basic_block_data_def): Add visited member.
        (bb_visited_trace): New accessor.
        (mark_bb_visited): Move in front.
        (rotate_loop): Use bb_visited_trace.
        (find_traces_1_round): Ditto.
        (emit_barrier_after): Ditto.
        (copy_bb): Ditto, and initialize visited on resize.
        (reorder_basic_blocks): Initize visited member.
        (duplicate_computed_gotos): Clear bb flags at start, use
        BB_VISITED flags.

        * cfgrtl.c (try_redirect_by_replacing_jump): Adjust.
        (rtl_verify_flow_info_1): Ditto.
        (cfg_layout_split_block): Ditto.
        (cfg_layout_delete_block): Ditto.
        (cfg_layout_merge_blocks): Ditto.
        (init_rtl_bb_info): Adjust and initialize il.x.head_ member.

2012-05-08  Hans-Peter Nilsson  <hp@axis.com>

        PR target/53272
        * config/cris/cris.c (cris_normal_notice_update_cc): For TARGET_V32,
        when a constant source operand matches an "I" constraint, the "no
        CC0 change" applies to a register-destination only, not a
        strict_low_part-destination.

2012-05-08  Richard Guenther  <rguenther@suse.de>

        * fold-const.c (fold_binary_loc): Fold (X * CST1) & CST2
        to zero or to (X * CST1) & CST2' when CST1 has trailing zeros.

2012-05-08  Georg-Johann Lay  <avr@gjlay.de>

        * Makefile.in (TEXI_GCC_FILES): Add avr-mmcu.texi.

        * doc/avr-mmcu.texi: New auto-generated file.
        * doc/invoke.texi (AVR Options): Include avr-mmcu.texi in order
        to document all valid -mmcu= arguments.

        * config/avr/avr.h (arch_info_s): New struct definition.
        * config/avr/avr-devices.c (avr_texinfo): New variable.
        * config/avr/gen-avr-mmcu-texi.c: New file.
        * config/avr/t-avr: New rules and dependencies to build avr-mmcu.texi.

2012-05-08  Dehao Chen  <dehao@google.com>

        * predict.c (find_qualified_ssa_name): New.
        (find_ssa_name_in_expr): New.
        (find_ssa_name_in_assign_stmt): New.
        (is_comparison_with_loop_invariant_p): New.
        (is_bound_expr_similar): New.
        (predict_iv_comparison): New.
        (predict_loops): Add heuristic for loop-nested branches that compare an
        induction variable to a loop bound variable.
        * predict.def (PRED_LOOP_IV_COMPARE): New macro.

2012-05-08  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (has_dispatch): Use TARGET_BDVER1 and
        TARGET_BDVER2 defines where appropriate.

2012-05-07  Eric Botcazou  <ebotcazou@adacore.com>

        * configure.ac (PLUGIN_LD): Rename into...
        (PLUGIN_LD_SUFFIX): ...this and strip the target_alias triplet.
        * config.in: Regenerate.
        * configure: Likewise.
        * collect2.c (main): Set plugin_ld_suffix to PLUGIN_LD_SUFFIX.

2012-05-07  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-dfa.c (get_ref_base_and_extent) <ARRAY_REF>: Do the offset
        computation using the precision of the index type.
        * gimple-fold.c (fold_const_aggregate_ref_1) <ARRAY_REF>: Likewise.
        (fold_array_ctor_reference): Do index computations in the index type.

2012-05-07  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.c (avr_prologue_setup_frame): Fix mode passed
        down to plus_constant.
        (expand_epilogue): Ditto.

2012-05-07  Steven Bosscher  <steven@gcc.gnu.org>

        * postreload.c (reload_cse_regs): Make static.
        * reload.h (reload_cse_regs): Remove prototype.

2012-05-07  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.md (clear_cache): New pattern.

2012-05-07  Steven Bosscher  <steven@gcc.gnu.org>

        PR middle-end/53245
        * gimplify.c (preprocess_case_label_vec_for_gimple): If low or high
        is folded to a type boundary value, verify that the resulting case
        label is still a care range.

2012-05-07  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (ctz<mode>2): Emit rep;bsf
        only for TARGET_GENERIC, when not optimizing for size.
        (*ffs<mode>_1): Ditto.

2012-05-07  Steven Bosscher  <steven@gcc.gnu.org>

        * tree-cfg.c (verify_gimple_switch): Tighten checks.

2012-05-07  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/53239
        * tree-vrp.c (get_value_range): Set VR of SSA_NAME_IS_DEFAULT_DEF
        of DECL_BY_REFERENCE RESULT_DECL to nonnull.

2012-05-07  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53195
        * tree-inline.c (setup_one_parameter): Properly add referenced
        vars from the parameters new known value.

2012-05-07  Steven Bosscher  <steven@gcc.gnu.org>

        * config/m68k/m68k.c (m68k_sched_branch_type): Remove.
        (sched_branch_type): Remove.
        (m68k_sched_md_init_global): Don't allocate it.
        (m68k_sched_md_finish_global): Don't free it.
        * config/m68k/m68k.h (m68k_sched_branch_type): Remove prototype.
        * config/m68k/m68k.md: Set the type of insns using
        m68k_sched_branch_type to bcc directly.

2012-05-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/sol2.c (solaris_override_options): New function.
        * config/sol2-protos.h (solaris_override_options): Declare.
        * config/sol2.h (SUBTARGET_OVERRIDE_OPTIONS): Define.

2012-05-07  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-loop-prefetch.c (determine_loop_nest_reuse): Return
        whether we failed to compute data dependences.
        (loop_prefetch_arrays): Fail if we failed.

2012-05-07  Uros Bizjak  <ubizjak@gmail.com>
            Paolo Bonzini  <bonzini@gnu.org>

        * config/i386/i386.md (ctz<mode>2): Emit rep;bsf even for !TARGET_BMI.
        Emit bsf when optimizing for size.
        (*ffs<mode>_1): Ditto.

2012-05-07  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/53250
        * config/sh/sh.c (sh_rtx_costs): Handle SET.

2012-05-06  Uros Bizjak  <ubizjak@gmail.com>

        PR target/53227
        * config/i386/i386.md (swap<mode>): Rename from *swap<mode>.
        (bswapdi2): Split from bswap<mode>2.  Use nonnimediate_operand
        predicate for operand 1.  Force operand 1 to register for TARGET_BSWAP.
        (bswapsi2): Ditto.
        (*bswapdi2_doubleword): New insn pattern.
        (*bswap<mode>2): Rename from *bswap<mode>2_1.

2012-05-06  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.c (mips_set_reg_reg_piece_cost): New function.
        (mips_set_reg_reg_cost): Likewise.
        (mips_rtx_costs): Handle SET.

2012-05-06  Richard Sandiford  <rdsandiford@googlemail.com>

        * lower-subreg.c (shift_cost): Use set_src_cost, avoiding the SET.
        (compute_costs): Likewise for the zero extension.  Use set_rtx_cost
        to compute the cost of moves.  Set the mode of the target register.

2012-05-05  Richard Sandiford  <rdsandiford@googlemail.com>

        * rtl.h (plus_constant, plus_constant_mode): Merge into a single
        plus_constant function.
        * explow.c (plus_constant, plus_constant_mode): Likewise.  Assert
        that the mode is sensible.
        (use_anchored_address, round_push, allocate_dynamic_stack_space)
        (probe_stack_range, anti_adjust_stack_and_probe): Update calls to
        plus_constant.

        * alias.c (canon_rtx): Likewise.
        (init_alias_analysis): Likewise.
        * builtins.c (expand_builtin_return_addr)
        (expand_builtin_setjmp_setup, expand_builtin_longjmp)
        (expand_builtin_nonlocal_goto, expand_builtin_update_setjmp_buf)
        (expand_builtin_apply_args_1, expand_builtin_apply, expand_movstr)
        (expand_builtin_stpcpy): Likewise.
        * calls.c (save_fixed_argument_area, restore_fixed_argument_area)
        (compute_argument_addresses, internal_arg_pointer_based_exp)
        (expand_call, emit_library_call_value_1): Likewise.
        * cfgexpand.c (expand_one_stack_var_at, expand_debug_expr): Likewise.
        * combine-stack-adj.c (try_apply_stack_adjustment): Likewise.
        * combine.c (combine_simplify_rtx, force_to_mode): Likewise.
        * cse.c (insert_const_anchor, find_reg_offset_for_const)
        (use_related_value, fold_rtx): Likewise.
        * cselib.c (cselib_subst_to_values): Likewise.
        * dse.c (record_store, check_mem_read_rtx): Likewise.
        * dwarf2out.c (rtl_for_decl_location, gen_variable_die): Likewise.
        * emit-rtl.c (adjust_address_1): Likewise.
        * except.c (sjlj_emit_function_enter)
        (expand_builtin_extract_return_addr)
        (expand_builtin_frob_return_addr): Likewise.
        * expmed.c (expand_divmod): Likewise.
        * expr.c (move_by_pieces, store_by_pieces, store_by_pieces_1)
        (emit_move_resolve_push, push_block, emit_push_insn, store_expr)
        (expand_expr_addr_expr_1, expand_expr_real_1): Likewise.
        * function.c (assign_stack_local_1)
        (instantiate_virtual_regs_in_rtx): Likewise.
        * optabs.c (prepare_cmp_insn): Likewise.
        * recog.c (offsettable_address_addr_space_p): Likewise.
        * reload.c (find_reloads_address, form_sum)
        (find_reloads_subreg_address): Likewise.
        * reload1.c (init_reload, eliminate_regs_1)
        (eliminate_regs_in_insn): Likewise.
        * simplify-rtx.c (simplify_unary_operation_1)
        (simplify_binary_operation_1, simplify_plus_minus): Likewise.
        * var-tracking.c (compute_cfa_pointer, prepare_call_arguments)
        (vt_add_function_parameter): Likewise.

        * config/alpha/alpha.h (EH_RETURN_HANDLER_RTX): Likewise.
        * config/alpha/vms.h (EH_RETURN_HANDLER_RTX): Likewise.
        * config/alpha/alpha.c (alpha_legitimize_address_1)
        (get_unaligned_address, alpha_expand_unaligned_load)
        (alpha_expand_unaligned_store, alpha_expand_unaligned_load_words)
        (alpha_expand_unaligned_store_words, alpha_expand_block_clear)
        (alpha_expand_builtin_establish_vms_condition_handler)
        (alpha_setup_incoming_varargs, emit_frame_store_1)
        (alpha_expand_prologue, alpha_expand_epilogue)
        (alpha_use_linkage): Likewise.
        * config/alpha/alpha.md: Likewise.

        * config/arm/arm.c (arm_trampoline_init, legitimize_pic_address)
        (arm_load_pic_register, arm_pic_static_addr, arm_legitimize_address)
        (thumb_legitimize_address, arm_gen_load_multiple_1)
        (arm_gen_store_multiple_1, arm_gen_multiple_op, gen_ldm_seq)
        (gen_stm_seq, gen_const_stm_seq, arm_block_move_unaligned_straight)
        (arm_block_move_unaligned_loop, arm_gen_movmemqi, arm_reload_in_hi)
        (arm_reload_out_hi, arm_reorg, vfp_emit_fstmd, emit_multi_reg_push)
        (emit_sfm, thumb_set_frame_pointer, arm_expand_prologue)
        (thumb1_emit_multi_reg_push, thumb1_expand_prologue)
        (thumb_expand_movmemqi, arm_set_return_address)
        (thumb_set_return_address): Likewise.
        * config/arm/arm.md: Likewise.

        * config/avr/avr.c (avr_incoming_return_addr_rtx)
        (avr_prologue_setup_frame, expand_epilogue)
        (avr_const_address_lo16): Likewise.

        * config/bfin/bfin.h (EH_RETURN_HANDLER_RTX): Likewise.
        * config/bfin/bfin.c (setup_incoming_varargs, bfin_load_pic_reg)
        (bfin_expand_prologue, bfin_trampoline_init, bfin_expand_call)
        (bfin_output_mi_thunk): Likewise.

        * config/c6x/c6x.c (c6x_initialize_trampoline)
        (c6x_output_mi_thunk): Likewise.

        * config/cr16/cr16.h (EH_RETURN_HANDLER_RTX): Likewise.
        * config/cr16/cr16.c (cr16_create_dwarf_for_multi_push): Likewise.

        * config/cris/cris.c (cris_return_addr_rtx, cris_split_movdx)
        (cris_expand_prologue, cris_expand_epilogue, cris_gen_movem_load)
        (cris_emit_movem_store, cris_trampoline_init): Likewise.
        * config/cris/cris.md: Likewise.

        * config/darwin.c (machopic_indirect_data_reference)
        (machopic_legitimize_pic_address): Likewise.

        * config/epiphany/epiphany.c (epiphany_emit_save_restore)
        (epiphany_expand_prologue, epiphany_expand_epilogue)
        (epiphany_trampoline_init): Likewise.
        * config/epiphany/epiphany.md: Likewise.

        * config/fr30/fr30.c (fr30_move_double): Likewise.

        * config/frv/frv.c (frv_dwarf_store, frv_expand_prologue)
        (frv_expand_block_move, frv_expand_block_clear, frv_return_addr_rtx)
        (frv_index_memory, unspec_got_name, frv_find_base_term)
        (frv_output_dwarf_dtprel): Likewise.

        * config/h8300/h8300.c (h8300_push_pop, h8300_return_addr_rtx)
        (h8300_swap_into_er6, h8300_swap_out_of_er6): Likewise.

        * config/i386/i386.h (RETURN_ADDR_RTX): Likewise.
        * config/i386/i386.c (setup_incoming_varargs_64)
        (setup_incoming_varargs_ms_64, choose_baseaddr)
        (ix86_emit_save_reg_using_mov, ix86_adjust_stack_and_probe)
        (ix86_emit_probe_stack_range, ix86_expand_prologue)
        (ix86_emit_restore_reg_using_pop, ix86_emit_leave)
        (ix86_expand_epilogue, legitimize_pic_address, ix86_legitimize_address)
        (ix86_split_long_move, ix86_expand_movmem, ix86_expand_setmem)
        (ix86_static_chain, ix86_trampoline_init, x86_this_parameter)
        (x86_output_mi_thunk): Likewise.
        * config/i386/i386.md: Likewise.

        * config/ia64/ia64.c (ia64_expand_load_address)
        (ia64_expand_tls_address, ia64_expand_move, ia64_split_tmode)
        (do_spill, ia64_trampoline_init): Likewise.

        * config/iq2000/iq2000.c (iq2000_va_start)
        (iq2000_emit_frame_related_store, iq2000_expand_prologue)
        (iq2000_expand_eh_return, iq2000_setup_incoming_varargs)
        (iq2000_print_operand, iq2000_legitimize_address): Likewise.

        * config/lm32/lm32.c (lm32_setup_incoming_varargs): Likewise.

        * config/m32c/m32c.c (m32c_return_addr_rtx)
        (m32c_expand_insv): Likewise.

        * config/m32r/m32r.c (m32r_setup_incoming_varargs)
        (m32r_legitimize_pic_address, m32r_print_operand)
        (m32r_print_operand_address): Likewise.

        * config/m68k/linux.h (FINALIZE_TRAMPOLINE): Likewise.
        * config/m68k/m68k.h (RETURN_ADDR_RTX): Likewise.
        (EH_RETURN_HANDLER_RTX): Likewise.
        * config/m68k/m68k.c (m68k_emit_movem, m68k_expand_prologue)
        (m68k_expand_epilogue, legitimize_pic_address)
        (m68k_output_mi_thunk): Likewise.
        * config/m68k/m68k.md: Likewise.

        * config/mcore/mcore.c (mcore_expand_prolog): Likewise.
        (mcore_expand_epilog): Likewise.
        * config/mcore/mcore.md: Likewise.

        * config/mep/mep.c (mep_allocate_initial_value)
        (mep_expand_prologue, mep_expand_epilogue): Likewise.

        * config/microblaze/microblaze.c (double_memory_operand)
        (microblaze_block_move_loop): Likewise.

        * config/mips/mips.c (mips_strip_unspec_address, mips_add_offset)
        (mips_setup_incoming_varargs, mips_va_start, mips_block_move_loop)
        (mips_print_operand, mips16e_save_restore_reg, mips_save_restore_reg)
        (mips_expand_prologue, mips_epilogue_set_cfa)
        (mips_expand_epilogue): Likewise.
        * config/mips/mips.md: Likewise.

        * config/mmix/mmix.c (mmix_dynamic_chain_address, mmix_return_addr_rtx)
        (mmix_expand_prologue, mmix_expand_epilogue): Likewise.

        * config/mn10300/mn10300.c (mn10300_gen_multiple_store)
        (mn10300_builtin_saveregs, mn10300_trampoline_init): Likewise.

        * config/moxie/moxie.h (INCOMING_RETURN_ADDR_RTX): Likewise.
        (EH_RETURN_HANDLER_RTX): Likewise.
        * config/moxie/moxie.c (moxie_static_chain): Likewise.

        * config/pa/pa.c (legitimize_pic_address, hppa_legitimize_address)
        (store_reg, set_reg_plus_d, pa_expand_prologue, load_reg)
        (pa_return_addr_rtx, hppa_builtin_saveregs)
        (pa_trampoline_init): Likewise.
        * config/pa/pa.md: Likewise.

        * config/pdp11/pdp11.c (pdp11_expand_epilogue): Likewise.

        * config/picochip/picochip.c (picochip_static_chain): Likewise.

        * config/rs6000/rs6000.h (RS6000_SAVE_TOC): Likewise.
        * config/rs6000/rs6000.c (rs6000_legitimize_address)
        (setup_incoming_varargs, print_operand, rs6000_return_addr)
        (rs6000_emit_eh_reg_restore, rs6000_emit_probe_stack_range)
        (rs6000_emit_epilogue)
        (rs6000_machopic_legitimize_pic_address): Likewise.

        * config/rx/rx.c (gen_rx_rtsd_vector, gen_rx_popm_vector): Likewise.

        * config/s390/s390.h (INITIAL_FRAME_ADDRESS_RTX): Likewise.
        (DYNAMIC_CHAIN_ADDRESS): Likewise.
        * config/s390/s390.c (s390_decompose_address, legitimize_pic_address)
        (s390_delegitimize_address, print_operand, annotate_constant_pool_refs)
        (replace_constant_pool_ref, s390_return_addr_rtx, s390_back_chain_rtx)
        (save_fpr, restore_fpr, save_gprs, restore_gprs, s390_emit_prologue)
        (s390_emit_epilogue, s390_function_profiler): Likewise.
        * config/s390/s390.md: Likewise.

        * config/score/score.c (score_add_offset, score_prologue): Likewise.

        * config/sh/sh.c (expand_block_move, push_regs, sh_builtin_saveregs)
        (sh_output_mi_thunk): Likewise.
        * config/sh/sh.md: Likewise.

        * config/sparc/sparc.h (DYNAMIC_CHAIN_ADDRESS, FRAME_ADDR_RTX)
        (RETURN_ADDR_RTX, INCOMING_RETURN_ADDR_RTX): Likewise.
        * config/sparc/sparc.c (sparc_legitimize_pic_address)
        (sparc_emit_probe_stack_range, emit_save_or_restore_regs)
        (emit_window_save, sparc_flat_expand_prologue, sparc_struct_value_rtx)
        (emit_and_preserve): Likewise.
        * config/sparc/sparc.md: Likewise.

        * config/spu/spu.h (DYNAMIC_CHAIN_ADDRESS): Likewise.
        * config/spu/spu.c (spu_expand_insv, spu_machine_dependent_reorg)
        (spu_setup_incoming_varargs, ea_load_store_inline)
        (spu_expand_load): Likewise.

        * config/stormy16/stormy16.c (xstormy16_expand_prologue)
        (combine_bnp): Likewise.

        * config/tilegx/tilegx.h (DYNAMIC_CHAIN_ADDRESS): Likewise.
        * config/tilegx/tilegx.c (tilegx_setup_incoming_varargs)
        (tilegx_expand_unaligned_load, tilegx_trampoline_init): Likewise.

        * config/tilepro/tilepro.h (DYNAMIC_CHAIN_ADDRESS): Likewise.
        * config/tilepro/tilepro.c (tilepro_setup_incoming_varargs)
        (tilepro_expand_unaligned_load, tilepro_trampoline_init): Likewise.

        * config/v850/v850.c (expand_prologue, expand_epilogue): Likewise.
        * config/v850/v850.md: Likewise.

        * config/vax/elf.h (EH_RETURN_STACKADJ_RTX): Likewise.
        (EH_RETURN_HANDLER_RTX): Likewise.
        * config/vax/vax.h (DYNAMIC_CHAIN_ADDRESS, RETURN_ADDR_RTX): Likewise.
        * config/vax/vax.c (vax_add_reg_cfa_offset, vax_expand_prologue)
        (print_operand_address, vax_trampoline_init): Likewise.

        * config/xtensa/xtensa.c (xtensa_expand_prologue, xtensa_return_addr)
        (xtensa_function_value_regno_p): Likewise.

2012-05-04  Andrew Pinski  <apinski@cavium.com>

        * expr.c (get_def_for_expr_class): New function.
        (convert_tree_comp_to_rtx): New function.
        (expand_cond_expr_using_cmove): New function.
        (expand_expr_real_2 <case COND_EXPR>): Call
        expand_cond_expr_using_cmove first and return if it succeeds.
        Remove the check for HAVE_conditional_move since we should have
        already converted it to a conditional move.
        * config/i386/i386.c (ix86_expand_int_movcc): Disallow comparison
        modes of DImode for 32bits and TImode.

2012-05-04  Steven Bosscher  <steven@gcc.gnu.org>

        PR other/29442
        * read-md.c (fprint_md_ptr_loc, fprint_c_condition): New functions.
        (print_md_ptr_loc, print_c_condition): Use them.
        * read-md.h (fprint_md_ptr_loc, fprint_c_condition): New prototypes.
        * genattrtab.c (attr_file_name, dfa_file_name, latency_file_name,
        attr_file, dfa_file, latency_file): New global variables.
        (write_attr_valueq, write_attr_set, write_attr_case, write_attr_value,
        write_upcase, write_indent, write_length_unit_log, write_test_expr,
        write_attr_get, write_insn_cases, write_eligible_delay,
        write_const_num_delay_slots): Accept FILE pointer and toss it around.
        Update all callers.
        (write_header, open_outfile, handle_arg): New funcions.
        (make_automaton_attrs): Write prototypes as extern to the output
        files.
        (main): Use init_rtx_reader_args_cb with handle_arg to take 3 file
        names from the command line.  Open the output files and write out
        internal functions for DFA functions to dfa_file_name, insn latency
        functions to latency_file_name, and everything else to attr_file.
        * Makefile.in (OBJS): Add insn-dfatab.o and insn-latencytab.o.
        (BACKEND): Build libbackend first.
        (MOSTLYCLEANFILES): Add insn-dfatab.c and insn-latencytab.c.
        (.PRECIOUS): Likewise.
        (insn-dfatab.o): New rule.
        (insn-latencytab.o): New rule.
        (simple_rtl_generated_c): Do not include insn-attrtab.c.
        (s-attrtab): New rule.

2012-05-04  Steven Bosscher  <steven@gcc.gnu.org>

        * rtl.def (ATTR_FLAG): Remove probability indicating flags.
        * genattr.c (main): Remove ATTR_FLAG_likely, ATTR_FLAG_unlikely,
        ATTR_FLAG_very_likely, and ATTR_FLAG_very_unlikely.
        * reorg.c (get_jump_flags): Do not set the removed flags.

        * doc/md.texi (attr_flag): Update for abovementioned changes.

2012-05-04  Uros Bizjak  <ubizjak@gmail.com>

        PR target/53228
        * config/i386/i386.h (X86_ARCH_CMOV): Rename from X86_ARCH_CMOVE.
        (TARGET_CMOV): Rename from TARGET_CMOVE.
        (TARGET_CMOVE): New define.
        * config/i386/i386.c (ix86_option_override_internal): Use TARGET_CMOV.
        Do not set TARGET_CMOVE here.

2012-05-04  Dodji Seketeli  <dodji@redhat.com>

        Enable -Wunused-local-typedefs when -Wall or -Wunused is on
        * opts.c (finish_options): Activate -Wunused-local-typedefs if
        -Wunused is activated.
        * doc/invoke.texi: Update blurb of -Wunused-local-typedefs.

2012-05-04  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/s390.md (*movmem_short, *clrmem_short)
        (*cmpmem_short): Move the mode check from the insn condition to
        the match_scratch.

2012-05-04  Ulrich Weigand  <ulrich.weigand@linaro.org>

        PR tree-optimization/52633
        * tree-vect-patterns.c (vect_vect_recog_func_ptrs): Swap order of
        vect_recog_widen_shift_pattern and vect_recog_over_widening_pattern.
        (vect_recog_over_widening_pattern): Remove handling of code that was
        already detected as over-widening pattern.  Remove special handling
        of "unsigned" cases.  Instead, support general case of conversion
        of the shift result to another type.

2012-05-04  Ulrich Weigand  <ulrich.weigand@linaro.org>

        * tree-vect-patterns.c (vect_single_imm_use): New function.
        (vect_recog_widen_mult_pattern): Use it instead of open-coding loop.
        (vect_recog_over_widening_pattern): Likewise.
        (vect_recog_widen_shift_pattern): Likewise.

2012-05-04  Ulrich Weigand  <ulrich.weigand@linaro.org>

        * tree-vect-patterns.c (vect_same_loop_or_bb_p): New function.
        (vect_handle_widen_op_by_const): Use it instead of open-coding test.
        (vect_recog_widen_mult_pattern): Likewise.
        (vect_operation_fits_smaller_type): Likewise.
        (vect_recog_over_widening_pattern): Likewise.
        (vect_recog_widen_shift_pattern): Add to vect_same_loop_or_bb_p test.

2012-05-04  Richard Guenther  <rguenther@suse.de>

        PR lto/50602
        * lto-wrapper.c (merge_and_complain): Complain about mismatches
        of -freg-struct-return and -fpcc-struct-return.
        (run_gcc): Pass through -freg-struct-return and -fpcc-struct-return
        from the input file options and ignore those from the link
        command line.

2012-05-04  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53168
        * tree-ssa-pre.c (phi_translate_1): Only handle type-punned
        memory reads when the result is a constant we can pun.

2012-05-04  Richard Guenther  <rguenther@suse.de>

        * common.opt (flto-report): Do not mark as Optimization.

2012-05-04  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/48496
        * recog.c (constrain_operands): If extra constraints are present, also
        accept pseudo-registers with equivalent memory locations during reload.

2012-05-04  Olivier Hainque  <hainque@adacore.com>

        * collect2.c (may_unlink_output_file): New global.
        (maybe_unlink): Honor it.
        * collect2.h: Add extern for it.
        * tlink.c (do_tlink): Set it to true if the link succeeded.

2012-05-04  Olivier Hainque  <hainque@adacore.com>

        * gcc.c (eval_spec_function): Finalize/restore the current string
        obstack state as part of the context push/pop operations.

2012-05-04  Bin Cheng  <bin.cheng@arm.com>

        PR rtl-optimization/52804
        * reload1.c (reload_reg_reaches_end_p): Check whether successor
        reload with type RELOAD_FOR_INPUT_ADDRESS kills reload register
        of current one with type RELOAD_FOR_INPADDR_ADDRESS.
        Same stands for reloads with type RELOAD_FOR_OUTPUT_ADDRESS and
        RELOAD_FOR_OUTADDR_ADDRESS.

2012-05-04  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR c++/24985
        * tree-diagnostic.c (maybe_unwind_expanded_macro_loc): Show caret
        for macro expansion.

2012-05-03  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * flags.h (flag_permissive): Do not declare.
        * diagnostic.c (diagnostic_report_diagnostic): Handle fpermissive
        option specially.
        * toplev.c (flag_permissive): Do not define.
        * c-tree.h (system_header_p): Delete unused.

2012-05-03  David S. Miller  <davem@davemloft.net>

        PR target/52684
        * config/sparc/sparc.c (emit_soft_tfmode_libcall): If we pass a
        MEM directly into a libcall, mark it's MEM_EXPR as addressable.
        (sparc_emit_float_lib_cmp): Likewise.

2012-05-03  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/53199
        * config/rs6000/rs6000.md (bswapdi splitters): If
        -mavoid-indexed-addresses (or -mcpu=power6 which sets it by
        default) is used, generate an alternate sequence that does not
        depend on using indexed addressing.

2012-05-03  Jason Merrill  <jason@redhat.com>

        * gengtype.c (write_types): Fix warning message.
        (write_local): Likewise.

2012-05-02  Jason Merrill  <jason@redhat.com>

        * dwarf2out.c (struct external_ref, build_local_stub): New.
        (hash_external_ref, external_ref_eq, lookup_external_ref): New.
        (optimize_external_refs, optimize_external_refs_1): New.
        (change_AT_die_ref): New.
        (clone_as_declaration): Add DW_AT_signature when cloning a declaration.
        (build_abbrev_table): Take the external refs hashtable.
        (output_comp_unit): Get it from optimize_external_refs and pass it in.

2012-05-03  Jan Hubicka  <jh@suse.cz>

        PR middle-end/53093
        * tree-emutls.c (new_emutls_decl): Fix handling of aliases.

2012-05-03  Jan Hubicka  <jh@suse.cz>

        PR middle-end/53106
        * ipa.c (cgraph_remove_unreachable_nodes): Fix handling of clones.

2012-05-03  Jason Merrill  <jason@redhat.com>

        * dwarf2out.c (die_struct): Add comdat_type_p flag.  Use it instead of
        use_debug_types to discriminate the die_id union.
        (print_die, assign_symbol_names, copy_decls_walk): Likewise.
        (build_abbrev_table, output_die): Likewise.
        (prune_unused_types_walk_attribs): Likewise.
        (generate_type_signature, copy_declaration_context): Set it.
        (remove_child_or_replace_with_skeleton): Set it.
        (dwarf2out_start_source_file, dwarf2out_end_source_file): Don't
        check use_debug_types.
        (dwarf2out_finish): Do break_out_includes after .debug_types.

2012-05-03  Jason Merrill  <jason@redhat.com>

        * dwarf2out.c (modified_type_die): Use scope_die_for.
        (gen_type_die_with_usage, dwarf2out_finish): Likewise.
        (uses_local_type_r, uses_local_type): New.
        (scope_die_for): Keep a type that uses a local type in local scope.
        Use get_context_die for namespace and type scope.

2012-05-03  Jason Merrill  <jason@redhat.com>

        * config/i386/i386.c (ix86_code_end): Set DECL_IGNORED_P on the
        pc thunk.
        * dwarf2out.c (output_aranges): Skip DECL_IGNORED_P functions.
        (dwarf2out_finish): Likewise.

2012-05-03  Martin Jambor  <mjambor@suse.cz>

        * builtins.c (get_object_alignment_1): Return whether we can determine
        the alignment or conservatively assume byte alignment.  Return the
        alignment by reference.  Use get_pointer_alignment_1 for dereference
        alignment.
        (get_pointer_alignment_1): Return whether we can determine the
        alignment or conservatively assume byte alignment.  Return the
        alignment by reference.  Use get_ptr_info_alignment to get SSA name
        alignment.
        (get_object_alignment): Update call to get_object_alignment_1.
        (get_object_or_type_alignment): Likewise, fall back to type alignment
        only when it returned false.
        (get_pointer_alignment): Update call to get_pointer_alignment_1.
        * fold-const.c (get_pointer_modulus_and_residue): Update call to
        get_object_alignment_1.
        * ipa-prop.c (ipa_modify_call_arguments): Update call to
        get_pointer_alignment_1.
        * tree-sra.c (build_ref_for_offset): Likewise, fall back to the type
        of MEM_REF or TARGET_MEM_REF only when it returns false.
        * tree-ssa-ccp.c (get_value_from_alignment): Update call to
        get_object_alignment_1.
        (ccp_finalize): Use set_ptr_info_alignment.
        * tree.h (get_object_alignment_1): Update declaration.
        (get_pointer_alignment_1): Likewise.
        * gimple-pretty-print.c (dump_gimple_phi): Use get_ptr_info_alignment.
        (dump_gimple_stmt): Likewise.
        * tree-flow.h (ptr_info_def): Updated comments of fields align and
        misalign.
        (get_ptr_info_alignment): Declared.
        (mark_ptr_info_alignment_unknown): Likewise.
        (set_ptr_info_alignment): Likewise.
        (adjust_ptr_info_misalignment): Likewise.
        * tree-ssa-address.c (copy_ref_info): Use new access functions to get
        and set alignment of SSA names.
        * tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Call
        mark_ptr_info_alignment_unknown.
        * tree-ssanames.c (get_ptr_info_alignment): New function.
        (mark_ptr_info_alignment_unknown): Likewise.
        (set_ptr_info_alignment): Likewise.
        (adjust_ptr_info_misalignment): Likewise.
        (get_ptr_info): Call mark_ptr_info_alignment_unknown.
        * tree-vect-data-refs.c (vect_create_addr_base_for_vector_ref):
        Likewise.
        (bump_vector_ptr): Likewise.
        * tree-vect-stmts.c (create_array_ref): Use set_ptr_info_alignment.
        (vectorizable_store): Likewise.
        (vectorizable_load): Likewise.

2012-05-03  Michael Matz  <matz@suse.de>

        * basic-block.h (struct rtl_bb_info, struct gimple_bb_info): Move
        in front of basic_block_def.
        (struct basic_block_def): Make il.gimple the full struct, not a
        pointer.
        (__assert_gimple_bb_smaller_rtl_bb): Asserting typedef.

        * cfgexpand.c (expand_gimple_basic_block): Clear all il.gimple members.
        * gimple-iterator.c (gimple_stmt_iterator): Don't special case
        NULL il.gimple, which can't happen anymore.
        * gimple.h (bb_seq): il.gimple can't be NULL.
        (bb_seq_add): Ditto.
        (set_bb_seq): Adjust.
        (gsi_start_bb, gsi_last_bb): Tidy.
        * lto-streamer-in.c (make_new_block): Don't zero members that
        are zeroed already, don't allocate a gimple_bb_info.
        * tree-cfg.c (create_bb): Don't allocate a gimple_bb_info.
        (remove_bb): Clear all il.gimple members.
        (gimple_verify_flow_info): Adjust for flat il.gimple.
        * tree-flow-inline.h (phi_nodes, phi_nodes_ptr, set_phi_nodes): Adjust.

        * coretypes.h (const_gimple_seq): Remove typedef.
        * gimple.h (gimple_seq_first): Take gimple_seq.
        (gimple_seq_first_stmt): Ditto.
        (gimple_seq_last): Ditto.
        (gimple_seq_last_stmt): Ditto.
        (gimple_seq_empty_p): Ditto.

2012-05-03  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-pre.c (valid_in_sets): Remove checking of trapping
        operations.
        (prune_clobbered_mems): Do it here.  Do not uselessly sort expressions.
        (compute_avail): Do not add possibly trapping operations to
        EXP_GEN if they might not be executed in the block.

2012-05-03  Uros Bizjak  <ubizjak@gmail.com>

        * config/alpha/elf.h (MAX_OFILE_ALIGNMENT): Remove.

2012-05-03  Steven Bosscher  <steven@gcc.gnu.org>

        * tree-switch-conversion.c (gen_inbound_check): Free post-dominance
        information as early as possible.  Update dominance info instead of
        discarding it.

2012-05-03  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-pre.c (debug_bitmap_sets_for): New function.
        (union_contains_value): Remove.
        (vro_valid_in_sets): Likewise.
        (op_valid_in_sets): New function.
        (valid_in_sets): Use op_valid_in_sets.
        (insert_into_preds_of_block): Move dumping ...
        (do_regular_insertion): ... here.
        (do_partial_partial_insertion): ... and here.  Dump that
        we've found a partial partial redundancy.
        (insert): Dump the current insert iteration.

2012-05-03  Jakub Jelinek  <jakub@redhat.com>

        PR plugins/53126
        * gcc-ar.c (main): If GCC_EXEC_PREFIX is set in env,
        append program name to it and pass that as first argument
        to make_relative_prefix.  Always pass standard_libexec_prefix
        as last argument to make_relative_prefix.  If
        make_relative_prefix returns NULL, fall back to
        standard_libexec_prefix.

        PR debug/53174
        * tree-predcom.c (remove_stmt): Call reset_debug_uses on stmts being
        removed.

        PR target/53187
        * config/arm/arm.c (arm_select_cc_mode): If x has MODE_CC class
        mode, return that mode.

        PR target/53194
        * config/i386/i386-c.c (ix86_target_macros_internal): Don't
        define __ATOMIC_HLE_* macros here.
        (ix86_target_macros): But here, using cpp_define_formatted.

2012-05-03  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53144
        * tree-ssa-sccvn.c (vn_reference_lookup_or_insert_constant_for_pieces):
        Rename to ...
        (vn_reference_lookup_or_insert_for_pieces): ... this.  Properly deal
        with SSA name values.
        (vn_reference_lookup_3): Adjust callers.

2012-05-03  Ganesh Gopalasubramanian  <Ganesh.Gopalasubramanian@amd.com>

        * config/i386/driver-i386.c (host_detect_local_cpu): Reset
        has_fma4 for AMD processors with both fma3 and fma4 support.

2012-05-03  Kirill Yukhin  <kirill.yukhin@intel.com>

        PR target/53201
        * config/i386/driver-i386.c (host_detect_local_cpu): Add space to
        "-mno-hle".

2012-05-03  Michael Matz  <matz@suse.de>

        PR bootstrap/53197
        * tree-ssa-dse.c (dse_optimize_stmt): Take pointer to iterator.
        (dse_enter_block): Properly iterate the whole sequence even
        if the last statement was removed.

2012-05-02  Steven Bosscher  <steven@gcc.gnu.org>

        * config/alpha/vms.h (SUBTARGET_OVERRIDE_OPTIONS): For pic code,
        unset flag_jump_tables.
        * stmt.c (expand_case): Remove special flag_pic case conditional
        on ASM_OUTPUT_ADDR_DIFF_ELT not being defined.

2012-05-02  Ulrich Weigand  <ulrich.weigand@linaro.org>

        * common/config/s390/s390-common.c (s390_option_optimization_table):
        Enable -fsched-pressure using -fsched-pressure-algorithm=model by
        default when optimizing.

2012-05-02  Martin Jambor  <mjambor@suse.cz>

        PR lto/52605
        * dwarf2out.c (dwarf2out_decl): Only lookup die representing context
        of a variable when the contect is a function.

2012-05-02  Michael Matz  <matz@suse.de>

        * coretypes.h (gimple_seq, const_gimple_seq): Typedef as gimple.
        * gimple.h (struct gimple_seq_node_d, struct gimple_seq_d): Remove.
        (const_gimple_seq_node): Remove.
        (gimple_seq_node): Typedef as gimple.
        (struct gimple_statement_base): Add next and prev members,
        adjust all WORD markers in using structs.
        (union gimple_statement_d): Link via gsbase.next field for GC and PCH.
        (gimple_seq_first, gimple_seq_first_stmt, gimple_seq_last,
        gimple_seq_last_stmt): Adjust as gimple_seq, gimple_seq_node and
        gimple are the same.
        (gimple_seq_set_last, gimple_seq_set_first): Don't allocate
        gimple_seq, adjust.
        (gimple_init_singleton): New function.
        (gsi_start_1, gsi_last_1, gsi_end_p, gsi_one_before_end_p): Adjust.
        (gsi_next, gsi_prev): Adjust, handle prev cyclic list correctly.
        (gsi_stmt): Adjust.
        (gsi_stmt_ptr): Remove.
        (enum gimple_alloc_kind): Remove gimple_alloc_kind_seq member.

        * gimple-iterator.c (update_bb_for_stmts): Take last parameter
        again, adjust for above changes.
        (update_call_edge_frequencies): Adjust for above changes.
        (gsi_insert_seq_nodes_before): Rewrite for new data structure.
        (gsi_insert_seq_nodes_after): Ditto.
        (gsi_split_seq_after): Ditto.
        (gsi_set_stmt): Ditto.
        (gsi_split_seq_before): Ditto.
        (gsi_remove): Ditto.
        (gsi_insert_seq_before_without_update): Don't free sequence.
        (gsi_insert_seq_after_without_update): Ditto.
        (gsi_replace): Assert some more invariants.
        (gsi_insert_before_without_update, gsi_insert_after_without_update):
        Tidy.
        (gsi_for_stmt): Don't search for stmt.
        (gsi_insert_on_edge_immediate): Tidy.

        * gimple.c (gimple_alloc_k): Remove "sequences".
        (gimple_seq_cache): Remove.
        (gimple_alloc_stat): Make stmt a singleton sequence.
        (gimple_seq_alloc, gimple_seq_free): Remove.
        (gimple_assign_set_rhs_with_ops_1): Ensure new stmt is a singleton.
        (gimple_copy): Ditto.
        * gimplify.c (gimplify_cleanup_point_expr): Use gsi_set_stmt,
        create iterator from correct sequence.
        * tree-phinodes.c (make_phi_node): Make stmt a singleton.

2012-05-02  Michael Matz  <matz@suse.de>

        * gimple.h (gimple_stmt_iterator <seq>): Make it be pointer to
        gimple_seq.
        (gimple_seq_set_last, gimple_seq_set_first): Take pointer to
        sequence, lazily allocate it.
        (bb_seq_addr): New function.
        (gsi_start_1): Rename from gsi_start, but take pointer to sequence.
        (gsi_start): Macro to wrap gsi_start_1 taking pointer of argument.
        (gsi_none): New function.
        (gsi_start_bb): Adjust.
        (gsi_last_1): Rename from gsi_last, but take pointer to sequence.
        (gsi_last): Macro to wrap gsi_last_1 taking pointer of argument.
        (gsi_last_bb): Adjust.
        (gsi_seq): Adjust.
        * tree-flow-inline.h (phi_nodes_ptr): New function.

        * gimple-iterator.c (gsi_insert_seq_nodes_before): Adjust to
        datastructure and interface change.
        (gsi_insert_seq_before_without_update): Ditto.
        (gsi_insert_seq_nodes_after): Ditto.
        (gsi_insert_seq_after_without_update): Ditto.
        (gsi_split_seq_after): Ditto, don't use gimple_seq_alloc.
        (gsi_split_seq_before): Ditto.
        (gsi_start_phis): Adjust.
        * tree-vect-loop.c (vect_determine_vectorization_factor): Use gsi_none.
        (vect_transform_loop): Ditto.
        * gimple.c (gimple_seq_add_stmt, gimple_seq_add_seq,
        gimple_seq_copy): Don't use gimple_seq_alloc.
        * gimplify.c (gimple_seq_add_stmt_without_update): Ditto.
        (gimplify_seq_add_seq): Ditto.
        * lto-streamer-in.c (make_new_block): Ditto.
        * tree-cfg.c (create_bb): Ditto.
        * tree-sra.c (initialize_parameter_reductions): Ditto.

2012-05-02  Michael Matz  <matz@suse.de>

        * gimple.h (gimple_seq_first, gimple_seq_first_stmt, gimple_seq_last,
        gimple_seq_last_stmt, gimple_seq_set_last, gimple_seq_set_first,
        gimple_seq_empty_p, gimple_seq_alloc_with_stmt, bb_seq,
        set_bb_seq): Move down to after gimple_statement_d definition.

2012-05-02  Michael Matz  <matz@suse.de>

        * gimple-fold.c (gimplify_and_update_call_from_tree): Use
        gsi_replace_with_seq, instead of inserting itself.
        * gimple-iterator.c (gsi_replace_with_seq): New function.
        * tree-ssa-forwprop.c (forward_propagate_comparison): Take
        iterator instead of statement, advance it.
        (ssa_forward_propagate_and_combine): Adjust call to above.

2012-05-02  Michael Matz  <matz@suse.de>

        * tree-phinodes.c (add_phi_node_to_bb): Tidy, don't use
        gimple_seq_alloc.
        * omp-low.c (finalize_task_copyfn): Don't use gimple_seq_alloc.
        * tree-nested.c (walk_gimple_omp_for): Ditto.
        * trans-mem.c (lower_transaction): Ditto.
        * tree-eh.c (do_return_redirection): Ditto.
        (do_goto_redirection): Ditto.
        (lower_try_finally_switch): Ditto.
        * gimplify.c (gimplify_stmt): Ditto.
        (gimplify_scan_omp_clauses): Ditto.
        (gimplify_omp_for): Ditto.
        (gimplify_function_tree): Ditto.
        * gimple-fold.c (gimplify_and_update_call_from_tree): Ditto.
        * tree-mudflap.c (mf_decl_cache_locals): Ditto.
        (mf_build_check_statement_for): Ditto.
        (mx_register_decls): Ditto.
        * graphite-sese-to-poly.c (remove_invariant_phi): Ditto,
        and don't use itertors to append.
        (insert_stmts): Ditto.
        (insert_out_of_ssa_copy): Ditto.
        (insert_out_of_ssa_copy_on_edge): Ditto.

2012-05-02  Michael Matz  <matz@suse.de>

        * gimple.h (gimple_bind_body_ptr): New function.
        (gimple_bind_body): Use it.
        (gimple_catch_handler): Use gimple_catch_handler_ptr.
        (gimple_eh_filter_failure_ptr): New function.
        (gimple_eh_filter_failure): Use it.
        (gimple_eh_else_n_body_ptr): New function.
        (gimple_eh_else_n_body): Use it.
        (gimple_eh_else_e_body_ptr): New function.
        (gimple_eh_else_e_body): Use it.
        (gimple_try_eval_ptr): New function.
        (gimple_try_eval): Use it.
        (gimple_try_cleanup_ptr): New function.
        (gimple_try_cleanup): Use it.
        (gimple_wce_cleanup_ptr): New function.
        (gimple_wce_cleanup): Use it.
        (gimple_omp_body_ptr): New function.
        (gimple_omp_body): Use it.
        (gimple_omp_for_pre_body_ptr): New function.
        (gimple_omp_for_pre_body): Use it.
        (gimple_transaction_body_ptr): New function.
        (gimple_transaction_body): Use it.
        (gsi_split_seq_before): Adjust to return nothing and take pointer
        to sequence.
        (gsi_set_stmt): Declare.
        (gsi_replace_with_seq): Declare.
        (walk_gimple_seq_mod): Declare.
        * function.h (struct function <gimple_body>): Use typedef gimple_seq.

        * gimple-iterator.c (gsi_set_stmt): New function.
        (gsi_split_seq_before): Return new sequence via pointer argument.
        (gsi_replace): Use gsi_set_stmt.

        * tree-ssa-loop-im.c (move_computations_stmt): First remove
        then insert stmt.
        * tree-complex.c (update_complex_components_on_edge): Don't copy gsi.
        * tree-phinodes.c (resize_phi_node): Don't resize stmt in-place,
        return new stmt.
        (reserve_phi_args_for_new_edge): Change call to above,
        use gsi_set_stmt.

        * omp-low.c (lower_omp): Change prototype to take pointer to sequence.
        (lower_rec_input_clauses): Use gimple_seq_add_seq instead of
        iterators.  Adjust call to lower_omp.
        (lower_lastprivate_clauses): Adjust call to lower_omp.
        (lower_reduction_clauses): Ditto.
        (expand_omp_taskreg): Nullify non-cfg body of child_fn.
        (lower_omp_sections): Don't explicitely count sequence length,
        nullify lowered bodies earlier, ensure stmts are part of only
        one sequence, adjust call to lower_omp.
        (lower_omp_single): Ensure stmts are part of only one sequence,
        adjust call to lower_omp.
        (lower_omp_master): Ditto.
        (lower_omp_ordered): Ditto.
        (lower_omp_critical): Ditto.
        (lower_omp_for): Ditto.
        (lower_omp_taskreg): Ditto, tidy.
        (lower_omp_1): Adjust calls to lower_omp.
        (execute_lower_omp): Ditto.
        (lower_omp): Adjust to take pointer to sequence.
        (diagnose_sb_2): Use walk_gimple_seq_mod.
        (diagnose_omp_structured_block_errors): Ditto and set possibly
        changed function body.
        * gimple-low.c (lower_function_body): Set function body after
        it stabilizes.
        (lower_sequence): Adjust to take pointer to sequence.
        (lower_omp_directive): Ensure stmt isn't put twice into the
        sequence, adjust call to lower_sequence.
        (lower_stmt): Adjust calls to lower_sequence.
        (lower_gimple_bind): Ditto.
        (gimple_try_catch_may_fallthru): Call gsi_start with lvalue.
        * tree-nested.c (walk_body): Take pointer to sequence, use
        walk_gimple_seq_mod.
        (walk_function): Adjust call to walk_body, set possibly changed body.
        (walk_gimple_omp_for): Adjust calls to walk_body.
        (convert_nonlocal_omp_clauses): Ditto.
        (convert_nonlocal_reference_stmt): Ditto.
        (convert_local_omp_clauses): Ditto.
        (convert_local_reference_stmt): Ditto.
        (convert_tramp_reference_stmt): Ditto.
        (convert_gimple_call): Ditto.
        (convert_nl_goto_reference): Use local iterator copy.
        * gimple.c (walk_gimple_seq_mod): Renamed from walk_gimple_seq,
        but taking pointer to sequence, ensure gsi_start is called with
        callers lvalue.
        (walk_gimple_seq): New wrapper around walk_gimple_seq_mod,
        asserting that the sequence head didn't change.
        (walk_gimple_stmt): Replace all calls to walk_gimple_seq with
        walk_gimple_seq_mod.
        * trans-mem.c (lower_transaction): Use walk_gimple_seq_mod.
        (execute_lower_tm): Ditto, and set possibly changed body.
        * tree-eh.c (lower_eh_constructs_1): Take pointer to sequence,
        call gsi_start with that lvalue.
        (replace_goto_queue_stmt_list): Ditto.
        (replace_goto_queue_1): Adjust calls to replace_goto_queue_stmt_list.
        (replace_goto_queue): Ditto.
        (lower_try_finally_nofallthru): Adjust calls to lower_eh_constructs_1.
        (lower_try_finally_onedest): Ditto.
        (lower_try_finally_copy): Ditto.
        (lower_try_finally_switch): Ditto.
        (lower_try_finally): Ditto.
        (lower_eh_filter): Ditto.
        (lower_eh_must_not_throw): Ditto.
        (lower_cleanup): Ditto.
        (lower_eh_constructs_2): Ditto.
        (lower_catch): Ditto, and ensure gsi_start is called with lvalue.
        (lower_eh_constructs): Adjust calls to lower_eh_constructs_1, and
        set possibly changed body.
        (optimize_double_finally): Call gsi_start with lvalue.

        * tree-cfg.c (make_blocks): Adjust call to gsi_split_seq_before.
        (gimple_split_block): Ditto.
        (gimple_merge_blocks): Use gsi_start_phis.
        (move_stmt_r): Use walk_gimple_seq_mod.
        * tree-ssa-dse.c (dse_enter_block): Use gsi_last_bb.
        * cgraphbuild.c (build_cgraph_edges): Use gsi_start_phis.
        (rebuild_cgraph_edges): Ditto.
        (cgraph_rebuild_references): Ditto.
        * ipa-prop.c (ipa_analyze_params_uses): Ditto.
        * tree-inline.c (copy_phis_for_bb): Ditto.
        * tree-ssa-dce.c: Ditto.

        * cgraphunit.c (cgraph_analyze_function): Use gimple_has_body_p.

2012-05-02  Kirill Yukhin  <kirill.yukhin@intel.com>
            Andi Kleen <ak@linux.intel.com>

        * coretypes.h (MEMMODEL_MASK): New.
        * builtins.c (get_memmodel): Add val. Call target.memmodel_check
        and return new variable.
        (expand_builtin_atomic_exchange):  Mask memmodel values.
        (expand_builtin_atomic_compare_exchange): Ditto.
        (expand_builtin_atomic_load): Ditto.
        (expand_builtin_atomic_store): Ditto.
        (expand_builtin_atomic_clear): Ditto.
        * doc/extend.texi: Mention port-dependent memory model flags.
        * config/i386/cpuid.h (bit_HLE): New.
        * config/i386/driver-i386.c (host_detect_local_cpu): Detect
        HLE support.
        * config/i386/i386-protos.h (ix86_generate_hle_prefix): New.
        * config/i386/i386-c.c (ix86_target_macros_internal): Set HLE defines.
        (ix86_target_string)<-mhle>: New.
        (ix86_valid_target_attribute_inner_p) <OPT_mhle>: Ditto.
        * config/i386/i386.c (ix86_target_string) <OPTION_MASK_ISA_HLE>: New.
        (ix86_valid_target_attribute_inner_p) <OPT_mhle>: Ditto.
        (ix86_option_override_internal) <PTA_HLE>: New switch, set it
        enabled for generic, generic64 and core-avx2.
        (ix86_print_operand): Generate HLE lock prefixes.
        (ix86_memmodel_check): New.
        (TARGET_MEMMODEL_CHECK): Ditto.
        * config/i386/i386.h (OPTION_ISA_HLE): Ditto.
        (IX86_HLE_ACQUIRE): Ditto.
        (IX86_HLE_RELEASE): Ditto.
        * config/i386/i386.h (ix86_generate_hle_prefix): Ditto.
        * config/i386/i386.opt (mhle): Ditto.
        * config/i386/sync.md(atomic_compare_and_swap<mode>): Pass
        success model to instruction emitter.
        (atomic_fetch_add<mode>): Ditto.
        (atomic_exchange<mode>): Ditto.
        (atomic_add<mode>): Ditto.
        (atomic_sub<mode>): Ditto.
        (atomic_<code><mode>): Ditto.
        (*atomic_compare_and_swap_doubledi_pic): Ditto.
        (atomic_compare_and_swap_single<mode>): Define and use argument
        for success model.
        (atomic_compare_and_swap_double<mode>): Ditto.
        * configure.ac: Check if assembler support HLE prefixes.
        * configure: Regenerate.
        * config.in: Ditto.

2012-05-02  Steven Bosscher  <steven@gcc.gnu.org>

        PR middle-end/53153
        * gimplify.c (preprocess_case_label_vec_for_gimple): New function,
        split out from ...
        (gimplify_switch_expr): ... here.
        * gimple.h (preprocess_case_label_vec_for_gimple): Add prototype.
        * tree-ssa-forwprop.c (simplify_gimple_switch_label_vec): New function
        to clean up case labels with values outside the index type range.
        (simplify_gimple_switch): Call it if something changed.
        Remove strange and unnecessary assert.

2012-05-02  Richard Guenther  <rguenther@suse.de>

        * fold-const.c (div_if_zero_remainder): sizetypes no longer
        sign-extend.
        (int_const_binop_1): New worker for int_const_binop with
        overflowable parameter.  Pass it through to force_fit_type_double.
        (int_const_binop): Wrap around int_const_binop_1 with overflowable
        equal to one.
        (size_binop_loc): Call int_const_binop_1 with overflowable equal
        to minus one, forcing overflow detection for even unsigned types.
        (extract_muldiv_1): Remove bogus TYPE_IS_SIZETYPE special-casing.
        (fold_binary_loc): Call try_move_mult_to_index with signed offset.
        * stor-layout.c (initialize_sizetypes): sizetypes no longer
        sign-extend.
        (layout_type): For zero-sized arrays ignore overflow on the
        size calculations.
        * tree-ssa-ccp.c (bit_value_unop_1): Likewise.
        (bit_value_binop_1): Likewise.
        * tree.c (double_int_to_tree): Likewise.
        (double_int_fits_to_tree_p): Likewise.
        (force_fit_type_double): Likewise.
        (host_integerp): Likewise.
        (int_fits_type_p): Likewise.
        * varasm.c (output_constructor_regular_field): Sign-extend the
        field-offset to cater for negative offsets produced by the Ada
        frontend.
        * omp-low.c (extract_omp_for_data): Convert the loop step to
        signed for pointer adjustments.

2012-05-02  Richard Guenther  <rguenther@suse.de>

        * tree.c (valid_constant_size_p): New function.
        * tree.h (valid_constant_size_p): Declare.
        * cfgexpand.c (expand_one_var): Adjust check for too large
        variables by using valid_constant_size_p.
        * varasm.c (assemble_variable): Likewise.

        * c-decl.c (grokdeclarator): Properly check for sizes that
        cover more than half of the address-space.

2012-05-02  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/53163
        * tree-ssa-phiopt.c (cond_if_else_store_replacement): Don't ignore
        return value from compute_all_dependences.

        PR rtl-optimization/53160
        * ree.c (combine_reaching_defs): Handle the case where cand->insn
        has been modified by ree pass already.

2012-05-01  Ian Lance Taylor  <iant@google.com>

        PR c/37303
        * c-decl.c (build_compound_literal): Make the decl readonly if it
        an array of a readonly type.
        * gimplify.c (gimplify_compound_literal_expr): Add fallback
        parameter.  Change all callers.  If the decl is not addressable
        and is not an l-value, make it readonly.

2012-05-01  Bernd Schmidt  <bernds@codesourcery.com>

        * ira.c (allocated_reg_info_size): New static variable.
        (expand_reg_info): Manage it. Call
        setup_preferred_alternate_classes_for_new_pseudos.
        (ira): Don't do it here.  Remove local allocated_reg_info_size,
        set the global before calling find_moveable_pseudos.
        (find_moveable_pseudos): Call expand_reg_info rather than
        resize_reg_info.

2012-05-01  Richard Henderson  <rth@redhat.com>

        * common.opt (fsync-libcalls): New.
        * doc/invoke.texi: Document it.
        * optabs.c (init_sync_libfuncs): Honor it.

2012-05-01  Kenneth Zadeck  <zadeck@naturalbridge.com>
            Richard Sandiford  <r.sandiford@uk.ibm.com>

        PR rtl-optimization/52543
        * Makefile.in (lower-subreg.o, target-globals.o): Depend on
        lower-subreg.h.
        * lower-subreg.h: New file.
        * target-globals.h (this_target_lower_subreg): Declare.
        (target_globals): Add lower_subreg;
        (restore_target_globals): Restore this_target_lower_subreg.
        * target-globals.c: Include it.
        (default_target_globals): Add default_target_lower_subreg.
        (save_target_globals): Initialize target_lower_subreg.
        * rtl.h (init_lower_subreg): Added declaration.
        * toplev.c (backend_init_target): Call initializer for lower-subreg
        pass.
        * lower-subreg.c (LOG_COSTS, FORCE_LOWERING): New macros.
        (default_target_lower_subreg): New variable.
        (this_target_lower_subreg): Likewise.
        (twice_word_mode, choices): New macros.
        (shift_cost, compute_splitting_shift, compute_costs)
        (init_lower_subreg): New functions.
        (resolve_simple_move): Add speed_p argument.  Check choices.
        (find_pseudo_copy): Don't check the mode size here.
        (resolve_simple_move): Assert the mode size.
        (find_decomposable_shift_zext): Add speed_p argument and return
        a bool.  Check choices.
        (resolve_shift_zext): Add comment.
        (dump_shift_choices, dump_choices): New functions.
        (decompose_multiword_subregs): Dump list of profitable
        transformations.  Add code to skip non profitable transformations.
        Update calls to simple_move and find_decomposable_shift_zext.

2012-05-01  Ian Bolton  <ian.bolton@arm.com>
            Sameera Deshpande  <sameera.deshpande@arm.com>
            Greta Yorsh  <greta.yorsh@arm.com>

        * config/arm/arm-protos.h (thumb_unexpanded_epilogue): Rename to...
        (thumb1_unexpanded_epilogue): ...this.
        * config/arm/arm.c (thumb_unexpanded_epilogue): Rename to...
        (thumb1_unexpanded_epilogue): ...this.
        * config/arm/arm.md (thumb_unexpanded_epilogue): Rename to...
        (thumb1_unexpanded_epilogue): ...this.

2012-05-01  Richard Earnshaw  <rearnsha@arm.com>

        * arm/linux-eabi.h (GLIBC_DYNAMIC_LINKER_DEFAULT): Avoid ifdef
        comparing enumeration values.  Update comments.

2012-05-01  Alan Modra  <amodra@gmail.com>

        PR target/53038
        * config/rs6000/rs6000.c (load_lr_save, restore_saved_lr,
        load_cr_save, add_crlr_cfa_restore): New functions.
        (rs6000_restore_saved_cr): Rename to..
        (restore_saved_cr): ..this.  Add cfa_restore notes for cr.
        (rs6000_emit_epilogue): Use new functions.  Adjust condition
        for emitting lr and cr cfa_restore.  Emit cfa_restores for fp
        regs when using out-of-line restore only when shrink wrapping.

2012-04-30  Uros Bizjak  <ubizjak@gmail.com>

        PR middle-end/53136
        * ipa-prop.c (ipa_print_node_jump_functions): Wrap multiple
        calls to cgraph_node_name in xstrdup.
        (ipa_make_edge_direct_to_target): Ditto.
        * cgraph.c (dump_cgraph_node): Ditto.
        * tree-sra.c (convert_callers_for_node): Ditto.
        * lto-symtab.c (lto_cgraph_replace_node): Ditto.
        * ipa-cp.c (perhaps_add_new_callers): Ditto.
        * cgraphunit.c (cgraph_redirect_edge_call_stmt_to_callee): Ditto.
        (cgraph_materialize_all_clones): Ditto.
        * ipa-inline.c (report_inline_failed_reason): Ditto.
        (want_early_inline_function_p): Ditto.
        (edge_badness): Ditto.
        (update_edge_key): Ditto.
        (flatten_function): Ditto.
        (ipa_inline): Ditto.
        (inline_always_inline_functions): Ditto.
        (early_inline_small_functions): Ditto.

2012-04-30  Uros Bizjak  <ubizjak@gmail.com>

        PR target/53141
        * config/i386/i386.md (*umul<mode><dwi>3_1): Switch places of
        constraints 0 and 1.

012-04-30  Jan Hubicka  <jh@suse.cz>

        * cgraph.c (ld_plugin_symbol_resolution_names): Move to symtab.c
        (cgraph_asm_nodes, cgraph_asm_last_node): Move to cgraphunit.c
        (cgraph_add_to_same_comdat_group): Remove.
        (cgraph_add_asm_node): Move to cgraphunit.c.
        (cgraph_make_decl_local): Move to symtab.c
        (cgraph_make_node_local_1): Update.
        (cgraph_can_remove_if_no_direct_calls_and): Update.
        (used_from_object_file_p): Update.
        (resolution_used_from_other_file_p): Move to symtab.c
        (cgraph_used_from_object_file_p): move to symtab.c
        (verify_cgraph_node): Verify same comdat groups.
        * cgraph.h (cgraph_asm_node): Rename to ...
        (asm_node): ... this one.
        (cgraph_asm_nodes): Rename to ...
        (asm_nodes): ... this one.
        (symtab_add_to_same_comdat_group): New function.
        (symtab_dissolve_same_comdat_group_list): New function.
        (symtab_used_from_object_file_p): Declare.
        (symtab_make_decl_local): Declare.
        (cgraph_add_to_same_comdat_group): Remove.
        (cgraph_add_asm_node): Remove.
        (cgraph_used_from_object_file_p, varpool_used_from_object_file_p):
        Remove.
        (cgraph_finalize_compilation_unit): Rename to ...
        (finalize_compilation_unit): ... this one.
        (cgraph_optimize): Rename to ....
        (compile): ... this one.
        (add_asm_node): Declare.
        (fixup_same_cpp_alias_visibility): Declare.
        (cgraph_make_decl_local): Remove.
        (varpool_assemble_pending_decls): Rename to ...
        (varpool_output_variables): ... this one.
        (varpool_remove_unreferenced_decls): Remove.
        * ipa-inline-transform.c (clone_inlined_nodes): Dissolve comdat groups.
        (preserve_function_body_p): Make static.
        * toplev.c (compile_file): Update comments; update.
        * cgraphunit.c: Update comments.
        (cgraph_expand_all_functions): Rename to ...
        (expand_all_functions): ... this one; update.
        (cgraph_mark_functions_to_output): Rename to ...
        (mark_functions_to_output): ... this one; cleanup.
        (cgraph_output_pending_asms): Remove prototype.
        (asm_nodes, asm_last_node): New static vars.
        (cgraph_process_new_functions): Update.
        (cgraph_reset_node): Cleanup; add comment.
        (cgraph_add_new_function): Update.
        (cgraph_output_pending_asms): Rename to ...
        (output_asm_statements): ... this one.
        (add_asm_node): New function.
        (fixup_same_cpp_alias_visibility): New function based on code
        in cgraph_analyze_function.
        (cgraph_analyze_function): Use it.
        (cgraph_order_sort): Update.
        (cgraph_output_in_order): Update.
        (cgraph_function_versioning): Update.
        (cgraph_optimize): Rename to ...
        (compile): ... this one; initialize streamer hooks here.
        (cgraph_finalize_compilation_unit): Rename to ...
        (finalize_compilation_unit): ... this one; do not initialize streamer
        hook here.
        * lto-streamer-out.c (lto_output_toplevel_asms): Update.
        * dwarf2out.c: Update ocmment.
        * optimize.c (maybe_clone_body): Use symtab_add_to_same_comdat_group.
        * method.c (use_thunk): Likewise.
        * semantics.c (maybe_add_lambda_conv_op): Likewise.
        * decl2.c (maybe_emit_vtables): Likewise.
        (cp_write_global_declarations): Use finalize_compilation_unit.
        * parser.c (cp_parser_asm_definition): Use add_asm_node.
        * lto-streamer-in.c (lto_input_toplevel_asms): Use add_asm_node
        * c-decl.c (c_write_global_declarations): Use
        finalize_compilation_unit.
        * langhooks.c (write_global_declarations): Update.
        * ipa.c (cgraph_externally_visible_p): Update.
        (dissolve_same_comdat_group_list): Remove.
        (function_and_variable_visibility): Update.
        * symtab.c: Inlcude lto-streamer.h and rtl.h
        (ld_plugin_symbol_resolution_names): New.
        (symtab_add_to_same_comdat_group): New.
        (symtab_dissolve_same_comdat_group_list): New.
        (resolution_used_from_other_file_p): Move here from cgraph.c
        (symtab_used_from_object_file_p): New.
        (symtab_make_decl_local): New.
        * passes.c (register_pass): Update comments.
        * c-parser.c (c_parser_asm_definition): Update.
        * varpool.c (varpool_analyze_node): Use
        fixup_same_cpp_alias_visibility.
        (varpool_remove_unreferenced_decls): Make static.
        (varpool_assemble_pending_decls): Rename to ...
        (varpool_output_variables): ... this one; call
        varpool_remove_unreferenced_decls.
        (varpool_used_from_object_file_p): Remove.

2012-04-30  Marc Glisse  <marc.glisse@inria.fr>

        PR c++/51033
        * c-typeck.c (build_array_ref): Call
        convert_vector_to_pointer_for_subscript.
        * doc/extend.texi (Vector Extensions): Subscripting not just for C.

2012-04-30  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (and<mode>3): Change runtime operand mode checks
        to compile-time "mode == <MODE>mode" checks.
        (and splitter): Ditto.

2012-04-30  Richard Henderson  <rth@redhat.com>

        * config/arm/arm.md (UNSPEC_LL): New.
        * config/arm/sync.md (atomic_loaddi, atomic_loaddi_1): New.
        (arm_load_exclusivedi): Use %H0.

2012-04-30  Jason Merrill  <jason@redhat.com>

        * dwarf2out.c (comdat_symbol_id): Add const.
        (union die_symbol_or_type_node): Add const to die_symbol.
        (output_die_symbol, output_die, output_comp_unit): Adjust.

2012-04-30  Andrew Stubbs  <ams@codesourcery.com>

        * config/arm/arm.md (negdi2): Use gen_negdi2_neon.
        * config/arm/neon.md (negdi2_neon): New insn.
        Also add splitters for core and NEON registers.

2012-04-30  Andrew Stubbs  <ams@codesourcery.com>

        * config/arm/arm.c (neon_valid_immediate): Allow const_int.
        (arm_print_operand): Add 'x' format.
        * config/arm/constraints.md (Dn): Allow const_int.
        * config/arm/neon.md (neon_mov<mode>): Use VDX to allow DImode.
        Use 'x' format to print constants.
        * config/arm/predicates.md (imm_for_neon_mov_operand): Allow const_int.
        * config/arm/vfp.md (movdi_vfp): Disable for const_int when neon
        is enabled.
        (movdi_vfp_cortexa8): Likewise.

2012-04-30  Ian Bolton  <ian.bolton@arm.com>
            Sameera Deshpande  <sameera.deshpande@arm.com>
            Greta Yorsh  <greta.yorsh@arm.com>

        * config/arm/arm-protos.h (ldm_stm_operation_p): New declaration.
        * config/arm/arm.c (ldm_stm_operation_p): New function.
        * config/arm/predicates.md (load_multiple_operation): Update predicate.
        (store_multiple_operation): Likewise.

        * config/arm/arm-protos.h (ldm_stm_operation_p): New parameters.
        * config/arm/arm.c (ldm_stm_operation_p): New parameters.
        * config/arm/predicates.md (load_multiple_operation): Add arguments.
        (store_multiple_operation): Likewise.

2012-04-30  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (and<mode>3): Expand masking operations with
        0xff, 0xffff or 0xffffffff immediates to corresponding zero_extend RTX.
        (and splitter): Split to DImode zero_extend RTX for DImode operand[0].

2012-04-30  Dodji Seketeli  <dodji@redhat.com>

        Add -Wvarargs option
        * builtins.c (fold_builtin_next_arg):  Use OPT_Wvarargs as an
        argument for the various warning_at calls.
        * docs/invoke.texi: Update the documentation.

2012-04-30  Dodji Seketeli  <dodji@redhat.com>

        Switch -ftrack-macro-expansion=2 on by default.
        * docs/cppopts.texi: Adjust for enabling -ftrack-macro-expansion=2
        by default.

        Fix va_start related location
        * builtins.c (fold_builtin_next_arg): Unwinds to the first
        location in real source code.

        Make conversion warnings work on NULL with -ftrack-macro-expansion
        * input.h (expansion_point_location_if_in_system_header): Declare
        new function.
        * input.c (expansion_point_location_if_in_system_header): Define it.

        Fix -Wuninitialized for -ftrack-macro-expansion
        * tree-ssa.c (warn_uninit): Use the spelling location of the variable
        declaration.  Use linemap_location_before_p for source locations.

        Strip "<built-in>" loc from displayed expansion context
        * input.c (expand_location_1): When expanding to spelling location
        in a context of a macro expansion, skip reserved system header
        locations.  Update comments.  * tree-diagnostic.c
        (maybe_unwind_expanded_macro_loc): Likewise.

        Make expand_location resolve to locus in main source file
        * input.c (expand_location_1): New.  Takes a parameter to choose
        whether to resolve the location to spelling or expansion point.
        Was factorized from ...
        (expand_location): ... here.
        (expand_location_to_spelling_point): New.  Implemented in terms of
        expand_location_1.
        * diagnostic.c (diagnostic_build_prefix): Use the new
        expand_location_to_spelling_point instead of expand_location.

        Fix PCH crash on GTYed pointer-to-scalar field of a struct
        * gengtype.c (write_types_process_field): Force second argument of
        the call to the PCH object hierarchy walker to be 'x'.

2012-04-30  Eric Botcazou  <ebotcazou@adacore.com>

        * config/i386/i386.c (ix86_handle_struct_attribute): Use the proper
        predicate to discriminate types.

2012-04-30  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * doc/invoke.texi (Wmissing-format-attribute): Document as an
        alias of Wsuggest-attribute=format.
        * c-typeck.c (convert_for_assignment): Replace
        Wmissing-format-attribute with Wsuggest-attribute=format.
        (digest_init): Likewise.

2012-04-29  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * opts.c (finish_options): Do not handle -Wmissing-noreturn here.
        * common.opt (Wmissing-noreturn): Alias of
        -Wsuggest-attribute=noreturn.

2012-04-29  Hans-Peter Nilsson  <hp@axis.com>

        PR target/53156
        * config/cris/cris.md (andqu): New peephole2.
        (andu): Tweak head comment.

2012-04-28  Joern Rennecke  <joern.rennecke@embecosm.com>
            Steven Bosscher  <steven@gcc.gnu.org>
            Maxim Kuvyrkov  <maxim@codesourcery.com>

        PR tree-optimization/38785
        * common.opt (ftree-partial-pre): New option.
        * doc/invoke.texi: Document it.
        * opts.c (default_options_table): Initialize flag_tree_partial_pre.
        * tree-ssa-pre.c (do_partial_partial_insertion): Insert only if it will
        benefit speed path.
        (execute_pre): Use flag_tree_partial_pre.

2012-04-27  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/52999
        * config/pa/pa.c (pa_legitimate_constant_p): Don't put function labels
        in constant pool.

2012-04-27  Ollie Wild  <aaw@google.com>

        * doc/invoke.texi (Wliteral-suffix): Document new option.

2012-04-27  Tom Tromey  <tromey@redhat.com>

        * dwarf2out.c (dwarf_stack_op_name): Use get_DW_OP_name.
        (dwarf_tag_name): Use get_DW_TAG_name.
        (dwarf_attr_name): Use get_DW_AT_name.
        (dwarf_form_name): Use get_DW_FORM_name.
        * dwarf2cfi.c (dwarf_cfi_name): Use get_DW_CFA_name.

2012-04-27  Paolo Bonzini  <bonzini@gnu.org>

        * tree-ssa-phiopt.c (conditional_replacement): Replace PHIs whose
        arguments are -1 and 0, by negating the result of the conditional.

2012-04-27  Paolo Bonzini  <bonzini@gnu.org>

        PR target/53138
        * config/i386/i386.md (x86_mov<mode>cc_0_m1_neg): Add clobber.

2012-04-27  Richard Guenther  <rguenther@suse.de>

        * tree-flow.h (is_hidden_global_store): Remove.
        * tree-ssa-sink.c (is_hidden_global_store): Likewise.
        * tree-ssa-alias.h (ref_may_alias_global_p): Declare.
        (stmt_may_clobber_global_p): Likewise.
        * tree-ssa-alias.c (ref_may_alias_global_p): New function.
        (stmt_may_clobber_global_p): Likewise.
        * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Call
        stmt_may_clobber_global_p.
        * tree-ssa-dse.c (dse_possible_dead_store_p): Likewise.

2012-04-27  Steven Bosscher  <steven@gcc.gnu.org>

        * cfg.c (disconnect_src): Do df_mark_solutions_dirty in the right
        place.

        * tree-switch-conversion.c (struct switch_conv_info): Add range_max,
        reorganize some fields and update comments.  Rename bit_test_uniq
        and bit_test_count to uniq resp. count.  Remove bit_test_bb.
        (collect_switch_conv_info): New function, collects info about a
        GIMPLE_SWITCH into a struct switch_conv_info.
        (check_range): Simplify to use pre-recorded info.  Fix think-o in
        range-branch ratio check.
        (check_process_case): Remove function.
        (check_all_empty_except_final): New function, verifies that all
        non-final basic blocks are empty.
        (process_switch): Simplify to use pre-recorded info.  Call
        collect_switch_conv_info to do that.  Assert that degenerate switch
        statements have been cleaned up.

2012-04-27  Marc Glisse  <marc.glisse@inria.fr>

        PR middle-end/27139
        * tree-ssa-forwprop.c (combine_conversions): Handle INT->FP->INT.

2012-04-25  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR c/53130
        * c-typeck.c (pop_init_level): Use %qD instead of %qT.

2012-04-27  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/51879
        * tree-ssa-sccvn.h (struct vn_reference_s): Add result_vdef field.
        * tree-ssa-sccvn.c (mark_use_processed): New function, factored out
        of ...
        (defs_to_varying): ... here.  Don't set use_processed.
        (visit_reference_op_call): Handle gimple_vdef.
        Handle case that lhs is NULL_TREE.
        (visit_use): Use mark_use_processed.  Handle calls with side-effect
        using visit_reference_op_call.

2012-04-26  Richard Sandiford  <richard.sandiford@linaro.org>

        * sched-deps.c (fixup_sched_groups): Rename to...
        (chain_to_prev_insn): ...this.
        (chain_to_prev_insn_p): New function.
        (deps_analyze_insn): Use it instead of SCHED_GROUP_P.

2012-04-26  Richard Sandiford  <richard.sandiford@linaro.org>

        * sched-int.h (_haifa_insn_data): Move priority_status.
        Add model_index.
        (INSN_MODEL_INDEX): New macro.
        * haifa-sched.c (insn_delay): New function.
        (sched_regno_pressure_class): Update commentary.
        (mark_regno_birth_or_death): Pass the liveness bitmap and
        pressure array as arguments, instead of using curr_reg_live and
        curr_reg_pressure.  Only update the pressure if the bit in the
        liveness set has changed.
        (initiate_reg_pressure_info): Always trust the live-in set for
        SCHED_PRESSURE_MODEL.
        (initiate_bb_reg_pressure_info): Update call to
        mark_regno_birth_or_death.
        (dep_list_size): Take the list as argument.
        (calculate_reg_deaths): New function, extracted from...
        (setup_insn_reg_pressure_info): ...here.
        (MODEL_BAR): New macro.
        (model_pressure_data, model_insn_info, model_pressure_limit)
        (model_pressure_group): New structures.
        (model_schedule, model_worklist, model_insns, model_num_insns)
        (model_curr_point, model_before_pressure, model_next_priority):
        New variables.
        (MODEL_PRESSURE_DATA, MODEL_MAX_PRESSURE, MODEL_REF_PRESSURE)
        (MODEL_INSN_INFO, MODEL_INSN): New macros.
        (model_index, model_update_limit_points_in_group): New functions.
        (model_update_limit_points, model_last_use_except): Likewise.
        (model_start_update_pressure, model_update_pressure): Likewise.
        (model_recompute, model_spill_cost, model_excess_group_cost): Likewise.
        (model_excess_cost, model_dump_pressure_points): Likewise.
        (model_set_excess_costs): Likewise.
        (rank_for_schedule): Extend SCHED_PRIORITY_WEIGHTED ordering to
        SCHED_PRIORITY_MODEL.  Use insn_delay.  Use the order in the model
        schedule as an alternative tie-breaker.  Update the call to
        dep_list_size.
        (ready_sort): Call model_set_excess_costs.
        (update_register_pressure): Update call to mark_regno_birth_or_death.
        Rely on that function to check liveness rather than doing it here.
        (model_classify_pressure, model_order_p, model_add_to_worklist_at)
        (model_remove_from_worklist, model_add_to_worklist, model_promote_insn)
        (model_add_to_schedule, model_analyze_insns, model_init_pressure_group)
        (model_record_pressure, model_record_pressures): New functions.
        (model_record_final_pressures, model_add_successors_to_worklist)
        (model_promote_predecessors, model_choose_insn): Likewise.
        (model_reset_queue_indices, model_dump_pressure_summary): Likewise.
        (model_start_schedule, model_finalize_pressure_group): Likewise.
        (model_end_schedule): Likewise.
        (schedule_insn): Say when we're scheduling the next instruction
        in the model schedule.
        (schedule_insn): Handle SCHED_PRESSURE_MODEL.
        (queue_to_ready): Do not add instructions that are
        MAX_SCHED_READY_INSNS beyond the current point of the model schedule.
        Always allow the next instruction in the model schedule to be added.
        (debug_ready_list): Print the INSN_REG_PRESSURE_EXCESS_COST_CHANGE
        and delay for SCHED_PRESSURE_MODEL too.
        (prune_ready_list): Extend SCHED_PRIORITY_WEIGHTED handling to
        SCHED_PRIORITY_MODEL, but also take the DFA into account.
        (schedule_block): Call model_start_schedule and model_end_schedule.
        Extend SCHED_PRIORITY_WEIGHTED stall handling to SCHED_PRIORITY_MODEL.
        (sched_init): Extend INSN_REG_PRESSURE_EXCESS_COST_CHANGE handling
        to SCHED_PRESSURE_MODEL, but don't allocate saved_reg_live or
        region_ref_regs.
        (sched_finish): Update accordingly.
        (fix_tick_ready): Extend INSN_REG_PRESSURE_EXCESS_COST_CHANGE handling
        to SCHED_PRESSURE_MODEL.
        (add_jump_dependencies): Update call to dep_list_size.
        (haifa_finish_h_i_d): Fix leak of max_reg_pressure.
        (haifa_init_insn): Extend INSN_REG_PRESSURE_EXCESS_COST_CHANGE handling
        to SCHED_PRESSURE_MODEL.
        * sched-deps.c (init_insn_reg_pressure_info): Likewise, but don't
        allocate INSN_MAX_REG_PRESSURE for SCHED_PRESSURE_MODEL.
        (sched_analyze_insn): Extend INSN_REG_PRESSURE_EXCESS_COST_CHANGE
        handling to SCHED_PRESSURE_MODEL.

2012-04-26  Richard Sandiford  <richard.sandiford@linaro.org>

        * common.opt (fsched-pressure-algorithm=): New option.
        * flag-types.h (sched_pressure_algorithm): New enum.
        * sched-int.h (sched_pressure_p): Replace with...
        (sched_pressure): ...this new variable.
        * haifa-sched.c (sched_pressure_p): Replace with...
        (sched_pressure): ...this new variable.
        (sched_regno_pressure_class, rank_for_schedule, ready_sort)
        (update_reg_and_insn_max_reg_pressure, schedule_insn)
        (debug_ready_list, prune_ready_list, schedule_block, sched_init)
        (sched_finish, fix_tick_ready, haifa_init_insn): Update accordingly.
        * sched-deps.c (init_insn_reg_pressure_info): Likewise.
        (sched_analyze_insn): Likewise.
        * sched-rgn.c (schedule_region): Likewise.
        * config/m68k/m68k.c (m68k_sched_variable_issue): Likewise.

2012-04-26  Bernd Schmidt  <bernds@codesourcery.com>

        * PR middle-end/52997
        * ira.c (find_moveable_pseudos): Call resize_reg_info.

        PR middle-end/52940
        * machmode.h (CLASS_HAS_WIDER_MODES_P): True for MODE_PARTIAL_INT.
        * expr.c (convert_move): Honor unsignedp when extending partial int
        modes.
        * genmodes.c (complete_mode): Don't clear component field of partial
        int modes.
        (emit_mode_inner): Don't emit it however.
        (calc_wider_mode): Partial int modes widen to their component.

2012-04-26  David S. Miller  <davem@davemloft.net>

        * config/sparc/niagara4.md: New file.
        * config/sparc/sparc.md: Include it.
        * config/sparc/sparc.c (niagara4_costs): New processor costs.
        (sparc_option_override): Use it.
        (sparc_use_sched_lookahead): Return 2 for niagara4.
        (sparc_issue_rate): Likewise.

        * config/sparc/sparc.md (attr type): Delete 'fgm_cmp'.
        (fpack16_vis, fpackfix_vis, fpack32_vis): Set type to fgm_pack.
        (fmul8x16_vis, fmul8x16au_vis, fmul8x16al_vis, fmul8sux16_vis,
        fmul8ulx16_vis, fmuld8sux16_vis, fmuld8ulx16_vis): Set type to fgm_mul.
        (alignaddrsi_vis, alignaddrdi_vis, alignaddrlsi_vis,
        alignaddrldi_vis): Set type to gsr.
        (pdist_vis, pdistn<mode>_vis): Set type to fgm_pdsit.
        (fcmp<code><GCM:gcm_name><P:mode>_vis, cmask8<P:mode>_vis,
        cmask16<P:mode>_vis, cmask32<P:mode>_vis, fchksm16_vis,
        v<vis3_shift_patname><mode>3, fmean16_vis,
        fp<plusminus_insn>64_vis, <vis3_addsub_ss_patname><mode>3,
        fucmp<code>8<P:mode>_vis): Set type to fga.
        * config/sparc/ultra1_2.md: Remove refrences to fgm_cmp.
        * config/sparc/niagara.md: Likewise.
        * config/sparc/niagara2.md: Likewise.
        * config/sparc/ultra3.md: Likewise, and fix type matching for
        us3_ialuX reservation.

2012-04-26  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * reload.c (find_reloads): Change the loop nesting when trying an
        alternative with swapped operands.

2012-04-26  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * tree-diagnostic.c (maybe_unwind_expanded_macro_loc): Fix
        comment. Delete unused parameter first_exp_point_map.
        (virt_loc_aware_diagnostic_finalizer): Update call.

2012-04-26  Michael Hope  <michael.hope@linaro.org>
            Richard Earnshaw  <rearnsha@arm.com>

        * config/arm/linux-eabi.h (GLIBC_DYNAMIC_LINKER_SOFT_FLOAT): Define.
        (GLIBC_DYNAMIC_LINKER_HARD_FLOAT): Define.
        (GLIBC_DYNAMIC_LINKER_DEFAULT): Define.
        (GLIBC_DYNAMIC_LINKER): Redefine to use the hard float path.

2012-04-25  Sriraman Tallam  <tmsriram@google.com>

        * doc/extend.texi: Document avx2 support.
        * config/i386/i386.c (fold_builtin_cpu): Add avx2.

2012-04-26  Hans-Peter Nilsson  <hp@axis.com>

        PR target/53120
        * config/cris/cris.md ("*andhi_lowpart_v32")
        ("*andqi_lowpart_v32"): Change first input-only operand from
        a (match_operand ...) to (match_dup 0).  Drop alternatives with
        const_int-matching constraints for redundancy.
        ("*andhi_lowpart_non_v32", "*andqi_lowpart_non_v32"): Ditto.  Drop
        three-operand alternative.

2012-04-25  Jakub Jelinek  <jakub@redhat.com>

        PR target/53110
        * config/i386/i386.md (and<mode>3): For andq $0xffffffff, reg
        instead expand it as zero extension.

2012-04-25  H.J. Lu  <hongjiu.lu@intel.com>

        PR debug/52857
        * dwarf2out.c (dbx_reg_number): Assert return value != INVALID_REGNUM.

2012-04-25  Jakub Jelinek  <jakub@redhat.com>

        * common.opt (flag_debug_types_section): Default to 0.
        (dwarf_version): Default to 4.
        (dwarf_record_gcc_switches): Default to 1.
        (dwarf_strict): Default to 0.
        * toplev.c (process_options): Don't handle dwarf_strict
        or dwarf_version here.
        * config/vxworks.c (vxworks_override_options): Don't
        test whether dwarf_strict or dwarf_version are negative,
        instead test !global_options_set.x_dwarf_*.
        * config/darwin.c (darwin_override_options): Default to
        dwarf_version 2.
        * doc/invoke.texi: Note that -gdwarf-4, -grecord-gcc-switches
        and -fno-debug-types-section are now the default.

2012-04-25  Jan Hubicka  <jh@suse.cz>

        * cgraphunit.c: Update toplevel comment.
        (tree_rest_of_compilation): Merge into cgraph_expand_function.
        (cgraph_analyze_function): Make static.
        (cgraph_decide_is_function_needed): Make static.
        (cgraph_add_new_function): Use expand_function instead of
        rest_of_compilation.
        (clone_of_p, verify_edge_count_and_frequency, cgraph_debug_gimple_stmt,
        verify_edge_corresponds_to_fndecl, verify_cgraph_node, verify_cgraph):
        Move to cgraph.c
        (cgraph_inline_p): Remove.
        (cgraph_preserve_function_body_p): Move to ipa-inline-transform.
        (init_cgraph): Add comment.
        * cgraphbuild.c (record_reference, mark_address, mark_load,
        mark_store): Do not call analyze_expr hook.
        * cgraph.c: Update toplevel comment.
        (clone_of_p, verify_edge_count_and_frequency, cgraph_debug_gimple_stmt,
        verify_edge_corresponds_to_fndecl, verify_cgraph_node, verify_cgraph):
        Move fere from cgraphunit.c
        (cgraph_mark_force_output_node): Move to cgraph.h
        * cgraph.h: Reorder so the comments match the function placement.
        (cgraph_analyze_function, cgraph_decide_is_function_needed): Remove.
        (cgraph_mark_force_output_node): Move here from cgraph.c
        * tree.c (free_lang_data): Do not clear analyze_expr hook.
        * ipa-inline-transform.c (preserve_function_body_p): New function.
        (inline_transform): Update.
        * langhooks.c (lhd_callgraph_analyze_expr): Remove.
        * langhooks.h (lang_hooks_for_callgraph): Remove.
        (lang_hooks): Remove callgraph.
        * tree-inline.c (expand_call_inline): Do not use cgraph_inline_p.
        * varpool.c: Remove out of date comment.
        * langhooks-def.h (lhd_callgraph_analyze_expr): Remove.
        (LANG_HOOKS_CALLGRAPH_ANALYZE_EXPR): Remove.

2012-04-25  Jan Hubicka  <jh@suse.cz>

        PR middle-end/53089
        * cgraphunit.c (referred_to_p): Move ahead in file to avoid
        forward declaration.
        (cgraph_finalize_function): Finalize them here.
        * symtab.c (dump_symtab): Dump ctors and dtors.

2012-04-25  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/52979
        * stor-layout.c (get_best_mode): Don't return mode with bitsize
        larger than maxbits.  Don't compute maxbits modulo align.
        Also check that unit bytes long store at bitpos / unit * unit
        doesn't affect bits beyond bitregion_end.
        * expmed.c (store_bit_field_1): Avoid trying insv if OP_MODE MEM
        would not fit into bitregion_start ... bitregion_end + 1 bit region.
        (store_split_bit_field): Decrease unit close to end of bitregion_end
        if access is restricted in order to avoid mutual recursion.

        PR tree-optimization/53058
        * double-int.h (double_int_max_value, double_int_min_value): New
        prototypes.
        * double-int.c (double_int_max_value, double_int_min_value): New
        functions.
        * tree-vrp.c (register_edge_assert_for_2): Compare mask for LE_EXPR
        or GT_EXPR with double_int_max_value instead of double_int_mask.

2012-04-25  Richard Guenther  <rguenther@suse.de>

        * tree-vectorizer.h (vect_loop_versioning): Adjust prototype.
        * tree-vect-loop.c (vect_transform_loop): Adjust.
        * tree-vect-loop-manip.c (vect_do_peeling_for_loop_bound): Record
        the maximum number of iterations for the epilogue loop.
        (vect_loop_versioning): Remove case re-using the peeled epilogue loop.

2012-04-25  Jakub Jelinek  <jakub@redhat.com>

        PR c/52880
        * c-typeck.c (set_nonincremental_init,
        set_nonincremental_init_from_string): Pass true instead of false
        as IMPLICIT to add_pending_init.

2012-04-25  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * c-typeck.c (pop_init_level): Improve diagnostics.

2012-04-25  Uros Bizjak  <ubizjak@gmail.com>

        * compare-elim.c (try_eliminate_compare): Also handle operands with
        implicit extensions.

2012-04-25  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000 (SAVE_INLINE_VRS, REST_INLINE_VRS,
        V_SAVE_INLINE, SAVRES_LR, SAVRES_SAVE, SAVRES_REG,
        SAVRES_GPR, SAVRES_FPR, SAVRES_VR): Define.
        (no_global_regs_above): Delete.
        (no_global_regs): New function.
        (rs6000_savres_strategy): Handle vector regs.  Use proper lr_save_p
        value for load multiple test.
        (savres_routine_syms): Increase size.
        (rs6000_savres_routine_name, rs6000_savres_routine_sym,
        ptr_regno_for_savres, rs6000_emit_savres_rtx): Pass in int selector
        rather than a number of boolean flags.  Update all callers.
        (rs6000_savres_routine_name): Generate vector save/restore names.
        (rs6000_savres_routine_sym): Handle vector regs.  Delete forward decl.
        (ptr_regno_for_savres, rs6000_emit_savres_rtx): Likewise.
        (rs6000_emit_prologue): Delete saving_FPRs_inline, saving_GPRs_inline
        and using_store_multiple.  Expand uses.  Don't always use r11 as
        frame reg when needed for out-of-line saves.  Set up initial offset
        for out-of-line vector saves when buying stack frame.  Handle pointer
        reg setup for out-of-line fp save.  Emit call to out-of-line vector
        save function.  Choose r11 or r12 for vrsave reg when available for
        better scheduling.
        (rs6000_output_function_prologue): Don't emit .extern for ELF.
        (rs6000_emit_epilogue): Choose a better frame reg when restoring
        from back-chain to suit out-of-line vector restore functions.  Emit
        call to out-of-line vector restore function.  Adjust register used
        for cr restore.  Tweak pointer register setup for gpr restore.
        * config/rs6000/rs6000.h (FIRST_SAVED_GP_REGNO): Take into account
        FIXED_R13.
        * config/rs6000/sysv4.h (FP_SAVE_INLINE, GP_SAVE_INLINE): Simplify.
        (V_SAVE_INLINE): Define.
        * config/rs6000/altivec.md (save_vregs_*, restore_vregs_*): New insns.

2012-04-25  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (rs6000_savres_strategy): Allow
        out-of-line save/restore for large frames.  Don't disable
        out-of-line saves on ABI_AIX when using static chain reg.
        (rs6000_emit_prologue): Adjust cr_save_regno on ABI_AIX to not
        clobber static chain reg, and tweak for out-of-line gpr saves
        that use r1.

2012-04-25  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (START_USE, END_USE, NOT_INUSE): Define.
        (rs6000_emit_prologue): Use the above to catch register overlap.

2012-04-25  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (rs6000_emit_stack_reset): Delete forward
        decl.  Move logic selecting update reg to callers.  Update all callers.
        (rs6000_emit_allocate_stack): Add copy_off param.
        (emit_frame_save): Don't handle reg+reg addressing.
        (ptr_regno_for_savres): New function, extracted from..
        (rs6000_emit_savres_rtx): ..here.  Add lr_offset param.
        (rs6000_emit_prologue): Generate frame_ptr_rtx as we need it.
        Set frame_reg_rtx to r11 whenever r11 is needed, and merge
        frame offset adjustment for out-of-line save with copy from sp.
        Simplify condition controlling whether cr is saved early or
        late.  Use ptr_regno_for_savres to verify correct reg is set
        up for out-of-line saves.  Pass the actual pointer reg used to
        rs6000_emit_savres_rtx so rtl matches insns in out-of-line
        function.  Rearrange spe vars so code is similar to that
        elsewhere in this function.  Don't update frame_off when spe
        save code will restore r11.  Use emit_frame_save for spe and
        gpr saves.  Consolidate darwin out-of-line gpr setup with that
        for other abis.  Don't assume frame_offset is zero and frame
        reg is sp when setting up altivec reg saves, and calculate
        exact offset requirement.
        (rs6000_emit_epilogue): Use HOST_WIDE_INT for frame_off.  Tidy
        spe restore code.  Consolidate darwin out-of-line gpr setup
        with that for other abis.

2012-04-25  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (rs6000_frame_related): Don't emit a
        REG_FRAME_RELATED_EXPR note when the instruction exactly matches
        the replacement.
        (emit_frame_save): Delete frame_ptr param.  Rename total_size to
        frame_reg_to_sp.
        (rs6000_emit_prologue): Add sp_off.  Update rs6000_frame_related
        and emit_frame_save calls.  Cope with possibly missing note.

2012-04-24  Sriraman Tallam  <tmsriram@google.com>

        * config/i386/i386.c (build_processor_model_struct): New function.
        (make_var_decl): New function.
        (fold_builtin_cpu): New function.
        (ix86_fold_builtin): New function.
        (make_cpu_type_builtin): New function.
        (ix86_init_platform_type_builtins): New function.
        (ix86_expand_builtin): Expand new builtins by folding them.
        (ix86_init_builtins): Make new builtins to detect CPU type.
        (TARGET_FOLD_BUILTIN): New macro.
        (IX86_BUILTIN_CPU_INIT): New enum value.
        (IX86_BUILTIN_CPU_IS): New enum value.
        (IX86_BUILTIN_CPU_SUPPORTS): New enum value.
        * config/i386/i386-builtin-types.def: New function type.
        * testsuite/gcc.target/builtin_target.c: New testcase.
        * doc/extend.texi: Document builtins.

2012-04-24  Olivier Hainque  <hainque@adacore.com>

        * common.opt (gdwarf-): Initialize dwarf_version to -1 instead of 2.
        * toplev.c (process_options): Default to dwarf_version 2.
        * config/vxworks.c (vxworks_override_options): Default to strict-dwarf
        and dwarf_version 2.

2012-04-24  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * tree-pretty-print.h (default_tree_printer): Do not declare.
        * tree-diagnostic.c: Include tree-pretty-print.h, tree-pass.h and
        intl.h.
        (default_tree_diagnostic_starter): Make static.
        (default_tree_printer): Move to here. Make static.
        (tree_diagnostics_defaults): New.
        * tree-diagnostic.h (default_tree_diagnostic_starter): Do not declare.
        * tree.c (free_lang_data): Use tree_diagnostics_defaults.
        * toplev.c: Do not include tree-pass.h.
        (default_tree_printer): Move from here.
        (general_init): Use tree_diagnostics_defaults.

2012-04-24  Chao-ying Fu  <fu@mips.com>

        * config.gcc (mips64*-*-linux*): Append mips/linux-common.h to tm_file.
        (mips*-*-linux*): Append mips/linux-common.h to tm_file.
        * config/mips/gnu-user.h
        (SUBTARGET_CC1_SPEC): Use GNU_USER_TARGET_CC1_SPEC directly.
        (GNU_USER_TARGET_LINK_SPEC): New define.
        (LINK_SPEC): Use GNU_USER_TARGET_LINK_SPEC.
        (LIB_SPEC): Use GNU_USER_TARGET_LIB_SPEC directly.
        (GNU_USER_TARGET_MATHFILE_SPEC): New define.
        (ENDFILE_SPEC): Use GNU_USER_TARGET_MATHFILE_SPEC and
        GNU_USER_TARGET_ENDFILE_SPEC.
        * config/mips/gnu-user64.h (LIB_SPEC): Remove.
        (GNU_USER_TARGET_LINK_SPEC): New define.
        (LINK_SPEC): Use GNU_USER_TARGET_LINK_SPEC.
        * config/mips/linux-common.h: New file.

2012-04-24  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR target/47197
        * config/rs6000/rs6000-c.c (fully_fold_convert): New function.
        (altivec_build_resolved_builtin): Call fully_fold_convert.

2012-04-24  Georg-Johann Lay  <avr@gjlay.de>

        PR target/53065
        * config/avr/avr.h (HARD_REGNO_CALL_PART_CLOBBERED): New hook define.

2012-04-24  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53085
        * tree-ssa-pre.c (eliminate): Do not eliminate volatile redundant
        stores.

2012-04-24  Richard Guenther  <rguenther@suse.de>

        * tree-if-conv.c (main_tree_if_conversion): Move bb under
        ENABLE_CHECKING.

2012-04-24  Jim Meyering  <meyering@redhat.com>

        * genattrtab.c (gen_attr): Avoid NULL-deref after diagnosing
        absence of an define_enum call.

2012-04-24  Richard Guenther  <rguenther@suse.de>

        * tree-vect-loop-manip.c (vect_do_peeling_for_loop_bound): If
        the epilogue loop is not re-used as unvectorized version
        record the its maximum number of iterations.

2012-04-24  Andrew Pinski  <apinski@cavium.com>

        * tree-ssa-forwprop.c (simplify_bitwise_binary):
        Don't directly use def1/def2.

2012-04-24  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53098
        * tree-vect-loop.c (vect_analyze_loop_operations): Fixup
        comparison sign.

2012-04-24  Andrew Pinski  <apinski@cavium.com>

        PR tree-opt/33512
        * tree-ssa-forwprop.c (defcodefor_name): New function.
        (simplify_bitwise_binary): Use defcodefor_name instead of manually
        Simplify "( X | Y) & X" to X and "( X & Y) | X" to X.
        Simplify "(~X | Y) & X" to "X & Y" and
        "(~X & Y) | X" to "X | Y".

2012-04-24  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * recog.c (insn_invalid_p): Add IN_GROUP parameter and use
        validate_change to add clobbers if IN_GROUP is nonzero.
        (verify_changes): Call insn_invalid_p with IN_GROUP set to true.
        * recog.h (insn_invalid_p): Add IN_GROUP parameter to function
        prototype.
        * gcse.c (process_insert_insn): Call insn_invalid_p with IN_GROUP
        set to false.
        * config/s390/s390.c (insn_invalid_p): Likewise.

2012-04-24  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/53084
        * varasm.c (compute_reloc_for_constant): Handle ADDR_EXPR of MEM_REF.
        (output_addressed_constants): Likewise.

        PR middle-end/52999
        * varasm.c (get_section): Don't ICE for section conflicts with
        built-in section kinds.

2012-04-23  DJ Delorie  <dj@redhat.com>

        * config/s390/s390.h (LINK_SPEC): Remove, no longer needed.
        (LIBSTDCXX): Change to CPP2.

2012-04-23  H.J. Lu  <hongjiu.lu@intel.com>

        PR bootstrap/52878
        * opth-gen.awk: Check if MASK_ and TARGET_ macros are defined for
        extra_masks.

2012-04-23  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*add<mode>_2): Add r/r/0 alternative.
        (*addsi_2_zext): Ditto.
        (*add<mode>_3): Ditto.
        (*addsi_3_zext): Ditto.
        (*add<mode>_5): Ditto.

2012-04-23  Andrew Pinski  <apinski@cavium.com>

        * tree-ssa-forwprop.c (simplify_bitwise_binary): Simplify (A & B) OP0
        (C & B) to (A OP0) & B.

2012-04-23  Martin Jambor  <mjambor@suse.cz>

        * expr.c (expand_expr_real_1): Remove setting parent's alias set for
        temporaries created for a bitfield (reverting revision 122014).

2012-04-23  Richard Guenther  <rguenther@suse.de>

        * tree-vect-loop-manip.c (slpeel_add_loop_guard): Gimplify
        the condition using is_gimple_condexpr and avoid the not necessary
        boolification.
        (set_prologue_iterations): Likewise.
        (vect_loop_versioning): Likewise.

2012-04-23  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53070
        * tree-if-conv.c (combine_blocks): Free predicates in all blocks.
        (main_tree_if_conversion): Verify we succeeded in that.

2012-04-23  Jan Hubicka  <jh@suse.cz>

        * lto-symtab.c (lto_cgraph_replace_node): Do not call
        mark_reahcable_node.
        * cgraph.c (cgraph_remove_node): Do not clear reachable.
        (cgraph_mark_reachable_node): Remove.
        (cgraph_mark_force_output_node): Do not set reachable.
        (dump_cgraph_node): Do not dump reachable.
        (cgraph_create_virtual_clone): Do not set reachable.
        * cgraph.h (cgraph_node): Remove reachable flag.
        (varpool_node): Remove reachable flag.
        (cgraph_mark_if_needed): Remove.
        (cgraph_mark_reachable_node): Remove.
        * tree-emutls.c (ipa_lower_emutls): Do not check reachable.
        * cgraphunit.c (cgraph_finalize_function): Do not mark node as
        reachable.
        (cgraph_add_new_function): Likewise.
        (cgraph_mark_if_needed): Remove.
        (cgraph_analyze_function): Do not set target as reachable.
        (process_function_and_variable_attributes): Do not care about
        dllexport.
        (cgraph_analyze_functions): Do not set reachable flags.
        (cgraph_mark_functions_to_output): Do not check reachability.
        (cgraph_copy_node_for_versioning): Do not set reachable flag.
        (dbxout_expand_expr): Update.
        * c-decl.c (merge_decls): Do not track changed externs.
        * ipa.c: Include pointer-set.h
        (enqueue_cgraph_node): Use reachable pointer set.
        (process_references): Likewise.
        (cgraph_remove_unreachable_nodes): Likewise.
        (whole_program_function_and_variable_visibility): Do not recompute
        reachable.
        * trans-mem.c (ipa_tm_execute): Do not check reachable flag.

2012-04-23  Georg-Johann Lay  <avr@gjlay.de>

        * doc/extend.texi (AVR Named Address Spaces): Fix typos.

2012-04-23  Richard Guenther  <rguenther@suse.de>

        PR c/53060
        * c-typeck.c (build_binary_op): Fix typo.

2012-04-23  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimizations/52891
        * tree-vect-patterns.c (adjust_bool_pattern): Use
        build_nonstandard_type even if rhs1 has unsigned INTEGER_TYPE,
        but with non-standard precision.

2012-04-22  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-loop-ivopts.c (expr_invariant_in_loop_p): Bail out at NULL
        tree refs.

2012-04-22  Jan Hubicka  <jh@suse.cz>

        * lto-symtab.c (lto_varpool_replace_node): Do not merge needed flags.
        * cgraphbuild.c (record_reference, record_type_list, mark_address,
        mark_load, mark_store): Do not mark varpool nodes as needed.
        * cgraph.c (cgraph_new_nodes): Remove.
        (cgraph_create_function_alias): Do not mark nodes as reachable.
        (cgraph_add_thunk): Likewise.
        (cgraph_mark_reachable_node): Do not manage the queue.
        * cgraph.h (cgraph_node): Remove next_needed.
        (varpool_nodes_queue): Remove next_needed and prev_needed.
        (x_cgraph_nodes_queue, x_cgraph_nodes_queue, cgraph_new_nodes): Remove.
        (cgraph_new_nodes): Declare.
        (x_varpool_nodes_queue, varpool_nodes_queue); Remove.
        (varpool_analyze_pending_decls): Remove.
        (varpool_analyze_node): New.
        (varpool_mark_needed_node): Remove.
        (varpool_first_variable, varpool_next_variable): New inlines.
        (varpool_first_static_initializer, varpool_next_static_initializer):
        Update.
        (FOR_EACH_STATIC_VARIABLE): Remove unused walker.
        (varpool_first_defined_variable): New inline.
        (varpool_next_defined_variable): New inline
        (FOR_EACH_VARIABLE): Reimplement.
        (FOR_EACH_DEFINED_VARIABLE): Reimplement.
        * toplev.c (wrapup_global_declaration_2): Use analyzed instead of
        needed flag.
        * cgraphunit.c (cgraph_new_nodes): Declare here.
        (enqueue_node): New function.
        (cgraph_process_new_functions): update for new
        node set; when constructing cgraph enqueue node for processing.
        (cgraph_add_new_function): Use new node set.
        (process_function_and_variable_attributes): Do not set varpool needed
        flags.
        (referred_to_p): New function.
        (varpool_finalize_decl): Move here from varpool.c; enqueue needed node
        when varpool is in construction.
        (cgraph_analyze_functions): Rewrite.
        (cgraph_expand_all_functions): Update.
        (cgraph_output_in_order): Do not analyze pending decls; do not set
        needed flags.
        (cgraph_optimize): Do not analyze pending decls.
        * lto-cgraph.c (input_varpool_node): Clear analyzed flag for objects
        in other partition; do not mark node as needed.
        * dwarf2out.c (reference_to_unused): Use analyzed flag.
        (premark_types_used_by_global_vars_helper): Likewise.
        * ipa.c (process_references): Do not call varpool_mark_needed_node.
        (cgraph_remove_unreachable_nodes): Do not rely on varpool and
        cgrpah queues.
        (function_and_variable_visibility): Do not mark node as needed.
        (whole_program_function_and_variable_visibility): Likewise.
        * Makefile.in (gt-varpool.h): No longer needed.
        * passes.c (execute_one_pass, execute_ipa_pass_list): Update.
        (ipa_write_summaries): Do not use needed flag.
        * varpool.c: Do not include gt-varpool.h
        (x_varpool_nodes_queue, x_varpool_last_needed_node,
        x_varpool_last_needed_node, x_varpool_first_unanalyzed_node,
        x_varpool_first_unanalyzed_node, varpool_assembled_nodes_queue):
        Remove.
        (varpool_remove_node): Do not update the lists.
        (dump_varpool_node): Do not dump needed flag.
        (varpool_enqueue_needed_node): Remove.
        (varpool_mark_needed_node): Remove.
        (varpool_reset_queue): Remove.
        (varpool_finalize_decl): Move to cgraphunit.c
        (varpool_analyze_node): New functions based on former
        varpool_analyze_pending_decls.
        (varpool_analyze_pending_decls): Remove.
        (varpool_assemble_decl): Do not update the lists.
        (enqueue_node): New function.
        (varpool_remove_unreferenced_decls): Rewrite.
        (varpool_empty_needed_queue): Remove.
        (add_new_static_var): Do not mark node as needed.
        (varpool_create_variable_alias): Handle expansion state
        creation.
        * except.c (output_ttype): Do not mark node as needed.
        * varasm.c (mark_decl_referenced): Do not use mark_needed_node.
        * tree-profile.c (init_ic_make_global_vars, init_ic_make_global_vars):
        Likewise.
        * tree-switch-conversion.c (build_one_array): Likewise.

2012-04-22  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR c/44774
        * doc/invoke.texi (pedantic): Rename to Wpedantic.
        * common.opt (Wpedantic): New.
        (pedantic): Alias Wpedantic.
        * diagnostic.c (warning_at): Likewise.
        * c-decl.c (diagnose_mismatched_decls): Likewise.
        (build_array_declarator): Likewise.
        (mark_forward_parm_decls):
        (check_bitfield_type_and_width): Likewise.
        (grokdeclarator): Likewise.
        (grokfield): Likewise.
        (finish_struct): Likewise.
        (build_enumerator): Likewise.
        (store_parm_decls_oldstyle): Likewise.
        (declspecs_add_qual): Likewise.
        (declspecs_add_type): Likewise.
        (finish_declspecs): Likewise.
        * c-typeck.c (composite_type): Likewise.
        (comp_target_types): Likewise.
        (build_array_ref): Likewise.
        (pointer_diff): Likewise.
        (build_unary_op): Likewise.
        (build_conditional_expr): Likewise.
        (build_c_cast): Likewise.
        (convert_for_assignment): Likewise.
        (maybe_warn_string_init): Likewise.
        (digest_init): Likewise.
        (pop_init_level): Likewise.
        (set_init_index): Likewise.
        (c_finish_goto_label): Likewise.
        (c_finish_return): Likewise.
        (do_case): Likewise.
        (build_binary_op): Likewise.
        * c-parser.c (static): Likewise.
        (c_parser_external_declaration): Likewise.
        (c_parser_declaration_or_fndef): Likewise.
        (c_parser_static_assert_declaration_no_se): Likewise.
        (c_parser_enum_specifier): Likewise.
        (c_parser_struct_or_union_specifier): Likewise.
        (c_parser_struct_declaration): Likewise.
        (c_parser_alignas_specifier): Likewise.
        (c_parser_braced_init): Likewise.
        (c_parser_initelt): Likewise.
        (c_parser_compound_statement_nostart): Likewise.
        (c_parser_conditional_expression): Likewise.
        (c_parser_alignof_expression): Likewise.
        (c_parser_postfix_expression): Likewise.
        (c_parser_postfix_expression_after_paren_): Likewise.
        (c_parser_objc_class_instance_variables): Likewise.
        (c_parser_objc_method_definition): Likewise.
        (c_parser_objc_methodprotolist): Likewise.

2012-04-22  Ian Lance Taylor  <iant@google.com>

        * godump.c (go_output_typedef): Dump size of structs.

2012-04-22  Razya Ladelsky  <razya@il.ibm.com>

        Correcting transform_to_exit_first_loop + fix to PR46886
        * tree-parloops.c (transform_to_exit_first_loop): Remove
        setting of number of iterations according to the loop pattern.
        Duplicate from entry to exit->src instead of loop->latch.
        (pallelize_loops): Remove the condition preventing do-while loops.
        * tree-cfg.c (bool bb_in_region_p): New.
        (gimple_duplicate_sese_tail): Adjust duplication of the the subloops.
        Adjust redirection of the duplicated iteration.

2012-04-21  Richard Sandiford  <rdsandiford@googlemail.com>

        PR bootstrap/53021
        * rtl.def (ADDRESS): Use "i" rather than "w".
        * rtl.h (find_base_term): Delete.
        (may_be_sp_based_p): Declare.
        * rtl.c (rtx_code_size): Remove ADDRESS special case.
        * alias.h (UNIQUE_BASE_VALUE_SP, UNIQUE_BASE_VALUE_ARGP)
        (UNIQUE_BASE_VALUE_FP, UNIQUE_BASE_VALUE_HFP): Move to...
        * alias.c: ...here.
        (find_base_term): Make static.
        (may_be_sp_based_p): New function.
        * dse.c (record_store): Use it.
        * store-motion.c (store_killed_in_insn): Likewise.

2012-04-21  Richard Sandiford  <rdsandiford@googlemail.com>

        * fold-const.c (fold_checksum_tree): Fix VECTOR_CST case.

2012-04-21  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR 35441
        * c-typeck.c (inform_declaration): New.
        (build_function_call_vec):  Do not pretty-print
        expressions when caret is enabled.
        (convert_arguments): Use inform_declaration.

2012-04-20  Jim Meyering  <meyering@redhat.com>

        * genmodes.c (make_complex_modes): Don't truncate a mode name of
        length 7 or more when prepending a "C".  Suggested by Richard Guenther.

2012-04-20  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR rtl-optimization/44214
        * fold-const.c (exact_inverse): New function.
        (fold_binary_loc): Fold vector and complex division by constant into
        multiply by recripocal with flag_reciprocal_math; fold vector division
        by constant into multiply by reciprocal with exact inverse.

2012-04-20  Jan Hubicka  <jh@suse.cz>

        * lto-symtab.c (lto_cgraph_replace_node): Merge needed instead of
        force flags.
        * cgraph.c (cgraph_add_thunk): Use mark_reachable_node.
        (cgraph_remove_node): Update.
        (cgraph_mark_needed_node): Remove.
        (cgraph_mark_force_output_node): New.
        (dump_cgraph_node): Do not dump needed flag.
        (cgraph_node_cannot_be_local_p_1): Update.
        (cgraph_can_remove_if_no_direct_calls_and_refs): Update.
        * cgraph.h (symtab_node_base): Add force_output flag.
        (cgraph_node): Remove needed flag.
        (varpool_node): Remove force_output flag.
        (cgraph_mark_needed_node): Remove.
        (cgraph_mark_force_output_node): New.
        (cgraph_only_called_directly_or_aliased_p,
        varpool_can_remove_if_no_refs, varpool_all_refs_explicit_p): Update.
        * ipa-cp.c (ipcp_generate_summary): Remove out of date assert.
        * cgraphunit.c (cgraph_decide_is_function_needed): rewrite.
        (cgraph_add_new_function): Update.
        (cgraph_mark_if_needed): Update.
        (verify_cgraph_node): Update.
        (cgraph_analyze_function): Alias target is reachable.
        (process_function_and_variable_attributes): Update: externally_visible
        flag makes function reachable.
        (cgraph_analyze_functions): Update dumping.
        * lto-cgraph.c (lto_output_node, lto_output_varpool_node,
        input_overwrite_node, input_varpool_node): Update streaming.
        * lto-streamer-out.c (produce_symtab): Use force_output.
        * ipa.c (process_references): Weakrefs must be processed.
        (cgraph_remove_unreachable_nodes): Likewise; update for new
        force_output flag.
        (varpool_externally_visible_p): Weakrefs are externally visible
        even if they are not.
        (function_and_variable_visibility): Update; when processing alias
        pair force the targets to be output.
        (whole_program_function_and_variable_visility): Use
        mark_reachable_node.
        * trans-mem.c (ipa_tm_mark_needed_node): Remove
        (ipa_tm_mark_force_output_node): New function.
        (ipa_tm_create_version_alias, ipa_tm_create_version): Update.
        * gimple-fold.c (can_refer_decl_in_current_unit_p): Be lax about
        aliases.
        * varasm.c (mark_decl_referenced): Update.
        (find_decl_and_mark_needed): Remove.
        (find_decl): New function.
        (weak_finish, finish_aliases_1, assemble_alias): Update; do not mark
        alias targets as needed.
        (dump_tm_clone_pairs): Update.
        * tree-inline.c (copy_bb): Update check.
        * symtab.c (dump_symtab_base): Dump force_output.
        * tree-ssa-structalias.c (ipa_pta_execute): Use force_output.
        * passes.c (execute_todo): Fix dumping.
        * varpool.c (decide_is_variable_needed, varpool_finalize_decl): Update.
        (varpool_analyze_pending_decls): Alias target is reachable.
        (varpool_create_variable_alias): Finalize weakrefs.

2012-04-20  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/53021
        * alias.h (UNIQUE_BASE_VALUE_SP, UNIQUE_BASE_VALUE_ARGP,
        UNIQUE_BASE_VALUE_FP, UNIQUE_BASE_VALUE_HFP): Define.
        * alias.c (init_alias_targets): Use UNIQUE_BASE_VALUE_*
        macros instead of constants.
        * dse.c (record_store): Check for SP ADDRESS by comparing
        XWINT to UNIQUE_BASE_VALUE_SP instead of expecting
        XEXP to be stack_pointer_rtx.

2012-04-20  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-copy.c (propagate_tree_value_into_stmt): Use
        update_call_from_tree when propagating into a call.

2012-04-20  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (rs6000_emit_savres_rtx): Formatting.
        (rs6000_emit_prologue, rs6000_emit_epilogue): Likewise.  Rename
        sp_offset to frame_off.  Move world save code earlier.

2012-04-20  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53050
        * tree-ssa-forwprop.c (ssa_forward_propagate_and_combine):
        Do only one transform on COND_EXPRs at the same time.

2012-04-19  Jan Hubicka  <jh@suse.cz>

        * symtab.c (dump_symtab_base): Revert accidental checkin.

2012-04-20  Alan Modra  <amodra@gmail.com>

        PR target/53040
        * config/rs6000/rs6000.c (rs6000_savres_strategy): When using
        static chain, set REST_INLINE_FPRS too.

2012-04-20  Thomas Schwinge  <thomas@codesourcery.com>

        * tree-dump.c (dequeue_and_dump) <BIT_FIELD_REF>: Dump the three child
        nodes.

2012-04-20  Richard Guenther  <rguenther@suse.de>

        * tree-vect-loop.c (vect_analyze_loop_operations): Do not vectorize
        loops that can never run more often than the vectorization factor.

2012-04-19  Jan Hubicka  <jh@suse.cz>

        * symtab.c (dump_symtab_base): Fix dumping of asm lists.

2012-04-19  David Edelsohn  <dje.gcc@gmail.com>

        * config/rs6000/sync.md (fetchop_name): Change ior attribute to "or".

2012-04-19  Jim Meyering  <meyering@redhat.com>

        * genmodes.c (make_complex_modes): Avoid unnecessary use of strncpy.
        We verified above that the string(including trailing NUL) fits in buf,
        so just use memcpy.

2012-04-19  Richard Guenther  <rguenther@suse.de>

        * symtab.c (dump_symtab_base): Use TREE_STRING_POINTER
        for dumping DECL_SECTION_NAME.

2012-04-19  Michael Matz  <matz@suse.de>

        PR middle-end/52977
        * tree.h (VECTOR_CST_NELTS): Use part number of types again.
        (struct tree_vector): Adjust GTY length.
        * tree.c (make_vector_stat): Don't set VECTOR_CST_NELTS.

        * gengtype.c (struct walk_type_data): Add in_record_p and loopcounter
        members.
        (walk_type, <TYPE_POINTER, TYPE_ARRAY>): Handle case where our
        caller emitted the length calulation already.
        (walk_type, <TYPE_UNION, TYPE_STRUCT>): Emit length calculations
        before handling any of the fields for structs.

2012-04-19  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53031
        * tree-vrp.c (adjust_range_with_scev): Revert back to
        using max_loop_iterations.

2012-04-19  Michael Matz  <matz@suse.de>

        * diagnostic.c (emit_diagnostic): Move va_end call after user
        of the va_list.
        (warning, warning_at, pedwarn, permerror): Ditto.

2012-04-19  Richard Guenther  <rguenther@suse.de>

        * ira-int.h (ira_allocno_object_iter_cond): Avoid out-of-bound
        array access.

2012-04-19  Georg-Johann Lay  <avr@gjlay.de>

        PR target/53033
        * config/avr/avr.c (avr_out_load_psi): Fix assembler template for
        the case *(X+const).

2012-04-19  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        * config/arm/sync.md (sync_optab): Change ior attribute to "or".

2012-04-19  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR c/52283/37985
        * stmt.c (warn_if_unused_value): Skip NOP_EXPR.
        * convert.c (convert_to_integer): Don't set TREE_NO_WARNING.

2012-04-19  Richard Guenther  <rguenther@suse.de>

        PR rtl-optimization/44688
        * loop-iv.c (determine_max_iter): Only return max_iter.
        (iv_number_of_iterations): Also use the recorded loop bound
        on the maximum number of iterations.
        * loop-unroll.c (decide_unroll_runtime_iterations): Use
        max_iter to avoid unrolling loops that do not roll.
        (decide_unroll_stupid): Likewise.

2012-04-18  Steven Bosscher  <steven@gcc.gnu.org>

        * targhooks.c (default_case_values_threshold): Fix code style nit.

        * stmt.c (add_case_node, expand_case): Move logic to remove/reduce
        case range and type folding from here...
        * gimplify.c (gimplify_switch_expr): ... to here.  Expect NULL_TREE
        type, as documented in tree.def.

2012-04-18  Jan Hubicka  <jh@suse.cz>

        * cgraph.h (verify_symtab, verify_symtab_node, verify_symtab_base):
        Declare.
        * cgraphunit.c (verify_cgraph_node): Verify symtab base; do not verify
        cgraph hash and same comdat groups.
        (cgraph_optimize): Verify symbol table.
        * ipa.c (cgraph_remove_unreachable_nodes): Verify symbol table.
        (dissolve_same_comdat_group_list): Work on symtab nodes.
        (function_and_variable_visibility): Dissolve variable same comdat group
        lists, too.
        * symtab.c: Include timevar.h
        (verify_symtab_base, verify_symtab_node, verify_symtab): New functions.

2012-04-18  Steven Bosscher  <steven@gcc.gnu.org>

        * tree-switch-conversion.c (info): Remove global pass info.
        (check_range, check_process_case, check_final_bb, create_temp_arrays,
        free_temp_arrays, gather_default_values, build_constructors,
        array_value_type, build_one_array, build_arrays, gen_def_assigns,
        fix_phi_nodes, gen_inbound_check): Pass info around from ...
        (process_switch): ... here.  Unify message format.  Return a const
        char pointer to the failure reason message.
        (do_switchconv): Unify message format.  Update process_switch usage.

        * tree.def (CASE_LABEL_EXPR): Fix documentation, mention all operands.
        * tree-cfg.c (edge_to_cases): Fix documentation.

2012-04-18  Uros Bizjak  <ubizjak@gmail.com>

        * config/alpha/sync.md (fetchop_name): Change ior attribute to "or".

2012-04-18  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/52976
        * tree-ssa-reassoc.c (add_to_ops_vec_max_rank): Delete.
        (possibly_move_powi): New function.
        (rewrite_expr_tree): Call possibly_move_powi.
        (rewrite_expr_tree_parallel): Likewise.
        (attempt_builtin_powi): Change call of add_to_ops_vec_max_rank to
        call add_to_ops_vec instead.

2012-04-18  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/52976
        * tree-ssa-reassoc.c (stmt_is_power_of_op): New function.
        (decrement_power): Likewise.
        (propagate_op_to_single_use): Likewise.
        (zero_one_operation): Handle __builtin_pow* calls in linearized
        expression trees; factor logic into propagate_op_to_single_use.
        (undistribute_ops_list): Allow operands with repeat counts > 1.

2012-04-18  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/44688
        * cfgloop.h (record_niter_bound): Declare.
        * tree-ssa-loop-niter.c (record_niter_bound): Export.
        Update the estimation with the upper bound here...
        (estimate_numbers_of_iterations_loop): ... instead of here.
        Do not forcefully reset a recorded upper bound.
        * tree-vect-loop-manip.c (vect_do_peeling_for_alignment):
        Record the maximum number of loop iterations of the prologue loop.

2012-04-18  Jan Hubicka  <jh@suse.cz>

        * lto-symtab.c (lto_cgraph_replace_node): Update.
        * cgraphbuild.c (record_reference, record_type_list,
        record_eh_tables, mark_address, mark_load, mark_store): Update.
        * cgraph.c (cgraph_same_body_alias, dump_cgraph_node,
        cgraph_create_virtual_clone, cgraph_for_node_thunks_and_aliases):
        Update.
        * cgraph.h (symtab_node_def, symtab_node, const_symtab_node): Remove.
        (cgraph_alias_aliased_node, varpool_alias_aliased_node): Update.
        * reload.c: Fix typo in comment.
        * rtlanal.c: Likewise.
        * tree-emultls.c (gen_emutls_addr): Update.
        * ipa-reference.c (analyze_function): Update.
        * cgraphunit.c (cgraph_analyze_function,
        cgraph_process_same_body_aliases, assemble_thunks_and_aliases):
        Update.
        * ipa-ref.c (ipa_record_reference): Reorg to avoid reference types.
        (ipa_remove_reference): Likewise.
        (ipa_remove_all_refering): Rename to ...
        (ipa_remove_all_referring): ... this one; update.
        (ipa_dump_references): Update.
        (ipa_dump_referring): Update.
        (ipa_clone_references): Update.
        (ipa_clone_refering): Rename to ...
        (ipa_clone_referring): ... this one; update.
        (ipa_ref_cannot_lead_to_return): Update.
        (ipa_ref_has_aliases_p): Update.
        * ipa-ref.h (symtab_node_def, symtab_node, const_symtab_node): New
        forward typedefs.
        (ipa_ref_type): Remove.
        (ipa_ref_ptr_u): Remove.
        (ipa_ref): Remove referencing, refered, refered_index, refering_type
        and refered_type; add referring, referred and referred_index.
        (ipa_ref_list): Rename refering to referring.
        (ipa_record_reference, ipa_remove_all_referring, ipa_dump_referring,
        ipa_clone_references, ipa_clone_referring): Update prototypes.
        * lto-cgraph.c (referenced_from_other_partition_p): Update.
        (lto_output_ref): Update.
        (add_references): Update.
        (input_varpool_node): Update.
        (input_refs): Update.
        * ipa-ref-inline.h (ipa_ref_node): Update.
        (ipa_ref_varpool_node): Update.
        (ipa_ref_referring_node): Update.
        (ipa_ref_referring_varpool_node): Update.
        (ipa_ref_referring_ref_list): Update.
        (ipa_ref_referred_ref_list): Update.
        (ipa_ref_list_first_referring): Update.
        (ipa_empty_ref_list): Update.
        (ipa_ref_list_refering_iterate): Rename to ...
        (ipa_ref_list_referring_iterate): ... this one.
        * cse.c: Update comment.
        * ipa-utils.c (ipa_reverse_postorder): Update.
        * tree-ssa-alias.c: Update.
        * ipa-inline.c (reset_edge_caches): Update.
        (update_caller_keys): Update.
        * ipa-inline.h: Update comments.
        * jump.c: Update comment.
        * alias.c: Likewise.
        * ipa.c (process_references): Update.
        (cgraph_remove_unreachable_nodes): Likewise.
        (ipa_discover_readonly_nonaddressable_var): Likewise.
        (cgraph_address_taken_from_non_vtable_p): Likewise.
        * trans-mem.c (ipa_tm_execute): Update.
        * simplify-rtx.c: Fix comment.
        * rtl.c: Fix comment.
        * symtab.c (symtab_unregister_node): Update.
        * varpool.c (dump_varpool_node): Update.
        (varpool_analyze_pending_decls): Update.
        (assemble_aliases): Update.
        (varpool_for_node_and_aliases): Update.

2012-04-18  Richard Guenther  <rguenther@suse.de>

        * cfgloop.h (estimate_numbers_of_iterations_loop): Remove
        use_undefined_p parameter.
        * tree-flow.h (estimate_numbers_of_iterations): Likewise.
        * tree-ssa-loop-niter.c (estimate_numbers_of_iterations_loop):
        Likewise.
        (estimate_numbers_of_iterations): Likewise.
        (estimated_loop_iterations): Adjust.
        (max_loop_iterations): Likewise.
        (scev_probably_wraps_p): Likewise.
        * tree-ssa-loop.c (tree_ssa_loop_bounds): Likewise.
        * tree-vrp.c (adjust_range_with_scev): Use max_stmt_executions,
        not max_loop_iterations.
        (execute_vrp): Remove explicit number of iterations estimation.

2012-04-18  Enkovich Ilya  <ilya.enkovich@intel.com>

        * config/i386/linux-common.h: New.

        * config.gcc: Add i386/linux-common.h before
        all i386/linux.h and i386/linux64.h usages.

        * config/i386/gnu-user.h (GNU_USER_TARGET_LINK_SPEC): New.
        (LINK_SPEC): Use GNU_USER_TARGET_LINK_SPEC.
        * config/i386/gnu-user64.h: Likewise.

        * config/i386/gnu-user.common.h (GNU_USER_TARGET_CC1_SPEC): New.
        (CC1_SPEC): Use GNU_USER_TARGET_CC1_SPEC.
        (GNU_USER_TARGET_MATHFILE_SPEC): New.
        (ENDFILE_SPEC): Use GNU_USER_TARGET_MATHFILE_SPEC.

2012-04-18  Jan Hubicka  <jh@suse.cz>

        * cgraph.c (cgraph_node_name): Remove.
        (dump_cgraph_node): Use dump_symtab_base; reformat.
        * cgraph.h (symtab_node_asm_name, symtab_node_name, dump_symtab,
        debug_symtab, dump_symtab_node, debug_symtab_node, dump_symtab_base):
        Declare.
        (cgraph_node_name, varpool_node_name): Remove.
        (cgraph_node_asm_name, varpool_node_asm_name,
        cgraph_node_name, varpool_node_name): New.
        * tree-pass.h (TODO_dump_cgraph): Rename to ...
        (TODO_dump_symtab): ... this one.
        * ipa-cp (pass_ipa_cp): Update.
        * ia-reference.c (generate_summary, read_write_all_from_decl,
        propagate, ipa_reference_read_optimization_summary): Update.
        * cgraphunit.c (cgraph_analyze_functions): Update.
        (cgraph_optimize): Update.
        * ipa-ref.c (ipa_dump_references): Update.
        (ipa_dump_refering): Update.
        * ipa-inline.c (pass_ipa_inline): Update.
        * matrix-reorg.c (pass_ipa_matrix_reorg): Update.
        * ipa.c (pass_ipa_function_visibility,
        pass_ipa_whole_program_visibility): Update.
        * tree-sra.c (pass_early_ipa_sra): Update.
        * symtab.c: Include langhooks.h
        (symtab_node_asm_name): New.
        (symtab_node_name): New.
        (symtab_type_names): New static var.
        (dump_symtab_base): New.
        (dump_symtab_node, dump_symtab): New.
        (debug_symtab_node,  debug_symtab): New.
        * tree-ssa-structalias.c: Dump symbol table.
        * pases.c (execute_todo): Handle TODO_dump_symtab instead
        of TODO_dump_cgraph.
        * varpoo.c (varpool_node_name): Remove.
        (dump_varpool_node): Use dump_symtab_base; reformat.

2012-04-18  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * doc/invoke.texi (Language Independent Options): @item should be
        before @opindex.

2012-04-17  Richard Sandiford  <rdsandiford@googlemail.com>

        PR bootstrap/53021
        * rtl.c (rtx_code_size): Handle ADDRESS.

2012-04-17  Tom de Vries  <tom@codesourcery.com>

        * tree-iterator.c (append_to_statement_list_1): Handle case that *list_p
        is not a STMT_LIST.

2012-04-17  Uros Bizjak  <ubizjak@gmail.com>

        PR target/53020
        * config/i386/sync.md (atomic_<code><mode>): Rename to
        atomic_<logic><mode>.

2012-04-17  Richard Sandiford  <rdsandiford@googlemail.com>

        * rtl.def (ADDRESS): Turn operand into a HOST_WIDE_INT.
        * alias.c (reg_base_value): Expand and update comment.
        (arg_base_value): New variable.
        (unique_id): Move up file.
        (unique_base_value, unique_base_value_p, known_base_value_p): New.
        (find_base_value): Use arg_base_value and known_base_value_p.
        (record_set): Document REG_NOALIAS handling.  Use unique_base_value.
        (find_base_term): Use known_base_value_p.
        (base_alias_check): Use unique_base_value_p.
        (init_alias_target): Initialize arg_base_value.  Use unique_base_value.
        (init_alias_analysis): Use 1 as the first id for REG_NOALIAS bases.

2012-04-17  Pat Haugen <pthaugen@us.ibm.com>

        * config/rs6000/rs6000.h (SLOW_UNALIGNED_ACCESS): Remove DImode.

2012-04-17  Michael Matz  <matz@suse.de>

        PR tree-optimization/18437
        * tree-vectorizer.h (_stmt_vec_info.stride_load_p): New member.
        (STMT_VINFO_STRIDE_LOAD_P): New accessor.
        (vect_check_strided_load): Declare.
        * tree-vect-data-refs.c (vect_check_strided_load): New function.
        (vect_analyze_data_refs): Use it to accept strided loads.
        * tree-vect-stmts.c (vectorizable_load): Ditto and handle them.

2012-04-17  Richard Guenther  <rguenther@suse.de>

        PR middle-end/53011
        * tree-eh.c (cleanup_empty_eh_merge_phis): Properly discard
        loops when redirecting an entry or latch edge.

2012-04-17  Bernd Schmidt  <bernds@codesourcery.com>

        * sel-sched.c (sel_global_init): Revert previous change.

2012-04-17  Richard Guenther  <rguenther@suse.de>

        * tree-flow.h (array_at_struct_end_p): Move declaration ...
        * tree.h (array_at_struct_end_p): ... here.
        * tree-ssa-loop-niter.c (array_at_struct_end_p): Move ...
        * expr.c (array_at_struct_end_p): ... here.  Rewrite.

2012-04-17  Steven Bosscher  <steven@gcc.gnu.org>

        * stmt.c (cost_table_, use_cost_table, cost_table_initialize,
        COST_TABLE): Remove.
        (estimate_case_costs): Remove.
        (expand_case): Do not call estimate_case_costs
        to set use_cost_table.
        (balance_case_nodes): Do not use use_cost_table.

2012-04-16  Jan Hubicka  <jh@suse.cz>

        * cgraph.c (cgraph_hash, assembler_name_hash): Remove.
        (hash_node, eq_node): Remove.
        (cgraph_create_node): Do not handle hashtable.
        (cgraph_get_node): Remove.
        (cgraph_insert_node_to_hashtable): Remove.
        (hash_node_by_assembler_name): Remove.
        (eq_assembler_name): Remove.
        (cgraph_node_for_asm): Rewrite.
        (cgraph_find_replacement_node): Break out from ...
        (cgraph_remove_node): ... here; do not maintain hashtables.
        (change_decl_assembler_name): Remove.
        (cgraph_clone_node): Do not maintain hashtables.
        * cgraph.h (const_symtab_node): New typedef.
        (cgraph_insert_node_to_hashtable): Remove.
        (symtab_get_node, symtab_node_for_asm,
        symtab_insert_node_to_hashtable): Declare.
        (cgraph_find_replacement_node): Declare.
        (cgraph_get_node, varpool_get_node): Turn into inlines.
        (cgraph, varpool): Work sanely on NULL pointers.
        (FOR_EACH_SYMBOL): New walker.
        * ipa-inline-transform.c (save_inline_function_body): Use
        symtab_insert_node_to_hashtable.
        * symtab.c: Include ggc.h and diagnostics.h
        (symtab_hash, assembler_name_hash): New static vars;
        (hash_node, eq_node, hash_node_by_assembler_name,
        eq_assembler_name, insert_to_assembler_name_hash,
        unlink_from_assembler_name_hash): New.
        (symtab_register_node): Update hashtables.
        (symtab_insert_node_to_hashtable): New.
        (symtab_unregister_node): Update hashtables.
        (symtab_get_node): New.
        (symtab_node_for_asm): New.
        (change_decl_assembler_name): New.
        * Makefile.in (symtab.o): Needs GTY.
        * varpool.c (varpool_hash): Remove.
        (hash_varpool_node, eq_varpool_node, varpool_get_node): Remove.
        (varpool_node): Rewrite using varpool_get_node.
        (varpool_remove_node): DO not maintain hashtables.
        (varpool_node_for_asm): Rewrite.

2012-04-16  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi:  Copy-edit to put verbs in the present tense
        when describing the current behavior of GCC.

2012-04-16  Richard Sandiford  <rdsandiford@googlemail.com>

        * genemit.c (gen_exp): Remove ADDRESS handling.
        * genoutput.c (scan_operands): Likewise.
        * genpeep.c (match_rtx): Likewise.
        * genrecog.c (add_to_sequence): Likewise.

2012-04-16  David Edelsohn  <dje.gcc@gmail.com>

        * doc/install.texi (Specific, *-ibm-aix*): Update assembler bug status.

2012-04-16  Martin Jambor  <mjambor@suse.cz>

        * tree-sra.c (build_ref_for_model): Create COMPONENT_REFs only for
        bit-fields.

2012-04-16  Ulrich Weigand  <ulrich.weigand@linaro.org>

        PR target/51819
        * config/arm/arm.c (arm_print_operand): Fix invalid alignment
        hints for 'A' operand types.

2012-04-16  Jan Hubicka  <jh@suse.cz>

        * cgraph.h (symtab_node_base): Add next and previous pointers.
        (cgraph_node): Remove next and preivous pointers.
        (varpool_node): Likewise; remove next/previous GTY marker;
        it is not type safe.
        (symtab_node_def): Update GTY marker
        (x_cgraph_nodes, cgraph_nodes): Remove.
        (symtab_nodes): New function.
        (cgraph_order): Rename to ...
        (symtab_order): ... this one.
        (symtab_register_node, symtab_unregister_node, symtab_remove_node):
        Declare.
        (x_varpool_nodes, varpool_nodes): Remove.
        (FOR_EACH_STATIC_VARIABLE): Update.
        (symtab_function_p, symtab_variable_p): New function.
        (FOR_EACH_VARIABLE): Update.
        (varpool_first_variable, varpool_next_variable): New functions.
        (FOR_EACH_VARIABLE): Update.
        (cgraph_first_defined_function): Update.
        (cgraph_next_defined_function, cgraph_next_defined_function): Update.
        (FOR_EACH_DEFINED_FUNCTION, FOR_EACH_FUNCTION): Update.
        (cgraph_first_function, cgraph_next_function): New.
        (FOR_EACH_FUNCTION): Update.
        (cgraph_first_function_with_gimple_body,
        cgraph_next_function_with_gimple_body): Update.
        * symtab.c: New file.
        * cgraph.c: Update copyright dates.
        (x_cgraph_nodes, cgraph_order): Remove.
        (NEXT_FREE_NODE): Update.
        (SET_NEXT_FREE_NODE): New.
        (cgraph_create_node_1): Remove common code.
        (cgraph_create_node): Remove common code; call symtab_register_node.
        (cgraph_remove_node): Remove common code; call symtab_unregister-node.
        (cgraph_add_asm_node): Update.
        (cgraph_clone_node): Register new node.
        * cgraphunit.c (process_function_and_variable_attributes): Update.
        (cgraph_analyze_functions): Update.
        (cgraph_analyze_functions): Update.
        (cgraph_output_in_order): Update.
        * lto-cgraph.c (input_node, input_varpool_node, input_cgraph_1):
        Update.
        * ipa-inline.c (recursive_inlining): Update.
        * lto-streamer-in.c (lto_input_toplevel_asms): Update.
        * ipa.c (cgraph_remove_unreachable_nodes): Update.
        * Makefile.in: Add symtab.o
        * varpool.c (x_varpool_nodes): Remove
        (varpool_node): Remove common code; call symtab_register_node.
        (varpool_remove_node): Remove common code; call symtab_unregister_node.

2012-04-16  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52977
        * tree.h (VECTOR_CST_NELTS): Adjust.
        (struct tree_vector): Add explicit length field.
        (make_vector_stat): Declare.
        (make_vector): Define.
        * tree.c (make_vector_stat): New function.
        (build_vector_stat): Use it.
        * tree-streamer-in.c (streamer_alloc_tree): Likewise.

2012-04-16  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/52976
        * tree-ssa-reassoc.c (add_to_ops_vec_max_rank): New function.
        (undistribute_ops_list): Ops with repeat counts aren't eligible for
        undistribution.
        (attempt_builtin_powi): Call add_to_ops_vec_max_rank.

2012-04-16  Jan Hubicka  <jh@suse.cz>

        * cgraph.h (FOR_EACH_VARIABLE, FOR_EACH_VARIABLE, FOR_EACH_FUNCTION):
        New macros.
        * lto-symtab.c (lto_symtab_merge_cgraph_nodes): Use FOR_EACH
        walkers to walk cgraph and varpool.
        * cgraph.c (cgraph_node_for_asm): Likewise.
        (dump_cgraph): Likewise.
        * value-prof.c (init_node_map): Likewise.
        * tree.c (free_lang_data_in_cgraph): Likewise.
        * tree-emutls.c: (ipa_lower_emutls): Likewise.
        * ipa-reference.c (generate_summary, propagate): Likewise.
        * cgraphunit.c (verify_cgraph, cgraph_process_same_body_aliases,
        cgraph_mark_functions_to_output, cgraph_output_in_order,
        output_weakrefs, cgraph_materialize_all_clones,
        cgraph_optimize): Likewise.
        * lto-cgraph.c (merge_profile_summaries): Likewise.
        (input_cgraph): Likewise.
        * ipa-pure-const.c (generate_summary): Likewise.
        (propagate): Likwise.
        * ipa-utils.c (ipa_reduced_postorder): Likewise.
        (ipa_free_postorder_info): Likewise.
        (ipa_reverse_postorder): Likewise.
        * ipa-inline.c (ipa_inline): Likewise.
        * matrix-reorg.c (find_matrices_decl): Likewise.
        (matrix_reorg): Likewise.
        * tree-vectorizer.c (increase_alignment): Likewise.
        * ipa.c (cgraph_remove_unreachable_nodes): Likewise.
        (function_and_variable_visibility): Likewise.
        (whole_program_function_and_variable_visibility): Likewise.
        (ipa_cdtor_merge): Likewise.
        * trans-mem.c (ipa_tm_execute): Likewise.
        * ipa-inline-analysis.c (dump_inline_summaries): Likewise.
        * ipa-prop.c (ipa_print_all_jump_functions): Likewise.
        (ipa_print_all_params): Likewise.
        (ipa_update_after_lto_read): Likewise.
        * tree-profie.c (tree_profiling): Likewise.
        * tree-ssa-structalias.c (ipa_pta_execute): Likewise.
        * passes.c (dump_passes): Likewise.
        (do_per_function): Likewise.
        (ipa_write_summaries): Likewise.
        * varpool.c (dump_varpool): Likewise.
        (varpool_node_for_asm): Likewise.
        (varpool_assemble_pending_decls): Likewise.

2012-04-16  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52975
        * tree-if-conv.c (predicate_bbs): Do not simplify inverted
        condition but always mark it with TRUTH_NOT_EXPR.

2012-04-16  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52975
        * tree-ssa-forwprop.c (combine_cond_exprs): New function.
        (ssa_forward_propagate_and_combine): Call it for COND_EXPRs
        and VEC_COND_EXPRs.  Also combine into VEC_COND_EXPRs condition.
        * fold-const.c (operand_equal_p): Handle TARGET_MEM_REF.

2012-04-14  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (ssse3_plusminus): New code iterator.
        (avx2_ph<plusminus_mnemonic>wv16hi3): Macroize insn from
        avx2_ph{add,adds,sub,subs}wv16hi3 using ssse3_plusminus code iterator.
        (ssse3_ph<plusminus_mnemonic>wv8hi3): Macroize insn from
        ssse3_ph{add,adds,sub,subs}wv8hi3 using ssse3_plusminus code iterator.
        (ssse3_ph<plusminus_mnemonic>wv4hi3): Macroize insn from
        ssse3_ph{add,adds,sub,subs}wv4hi3 using ssse3_plusminus code iterator.

        (avx2_ph<plusminus_mnemonic>dv8si3): Macroize insn from
        avx2_ph{add,adds,sub,subs}dv8si3 using plusminus code iterator.
        (ssse3_ph<plusminus_mnemonic>dv4si3): Macroize insn from
        ssse3_ph{add,adds,sub,subs}dv4si3 using plusminus code iterator.
        (ssse3_ph<plusminus_mnemonic>dv2si3): Macroize insn from
        ssse3_ph{add,adds,sub,subs}dv2si3 using plusminus code iterator.

        (xop_plus): New code iterator.
        (macs): New code attribute.
        (macds): Ditto.
        (xop_p<macs><ssemodesuffix><ssemodesuffix>): Macroize insn from
        xop_pmacs{,s}{ww,dd} using xop_plus code iterator and VI24_128 mode
        iterator.
        (xop_p<macs>dql): Macroize insn from xop_pmacs{,s}dql using
        xop_plus code iterator.
        (xop_p<macs>dqh): Macroize insn from xop_pmacs{,s}dqh using
        xop_plus code iterator.
        (xop_p<macs>wd): Macroize insn from xop_pmacs{,s}wd using
        xop_plus code iterator.
        (xop_p<madcs>wd): Macroize insn from xop_pmadcs{,s}wd using
        xop_plus code iterator.

        (xop_phadd<u>bw): Macroize insn from xop_phadd{,u}bw usign
        any_extend code iterator.
        (xop_phadd<u>bd): Macroize insn from xop_phadd{,u}bd usign
        any_extend code iterator.
        (xop_phadd<u>bq): Macroize insn from xop_phadd{,u}bq usign
        any_extend code iterator.
        (xop_phadd<u>wd): Macroize insn from xop_phadd{,u}wd usign
        any_extend code iterator.
        (xop_phadd<u>wq): Macroize insn from xop_phadd{,u}wq usign
        any_extend code iterator.
        (xop_phadd<u>dq): Macroize insn from xop_phadd{,u}dq usign
        any_extend code iterator.

2012-04-14  Tom de Vries  <tom@codesourcery.com>

        * cfgcleanup.c (try_optimize_cfg): Replace call to delete_insn_chain by
        call to delete_insn.  Remove code to reorder BASIC_BLOCK note and
        DELETED_LABEL note, and move it to ...
        * cfgrtl.c (delete_insn): ... here.  Change return type to void.
        (delete_insn_and_edges): Likewise.
        (delete_insn_chain): Handle new return type of delete_insn.  Delete
        chain backwards rather than forwards.
        * rtl.h (delete_insn, delete_insn_and_edges): Change return type to
        void.
        * cfglayout.c (fixup_reorder_chain): Delete unused label.

2012-04-14  Jan Hubicka  <jh@suse.cz>

        * cgraph.h: Update copyrights;
        (symtab_node): Turn to union typedef.
        (symtab_node_base): New structure.
        (symtab_type): Add SYMTAB_SYMBOL tag.
        (cgraph_node): Annotate some pinters with nested_ptr.
        (varpool_node): Likewise.
        (cgraph_local_info): Remove lto_file_data
        and externally_visible.
        (cgraph_node): Remove decl; same_comdat_group list;
        aux; ref_list; order; address_taken; reachable_from_other_parittion,
        in_other_partition; resolution.
        (varpool_node): Remove decl; same_comdat_group;
        ref_list; lto_file_data; aux; order; resolution; externally_visible;
        used_from_other_partition; in_other_partition.
        (symtab_node_def): New union.
        (cgraph, varpool): Update.
        (varpool_first_static_initializer, varpool_next_static_initializer,
        cgraph_only_called_directly_or_aliased_p,
        varpool_can_remove_if_no_refs, varpool_can_remove_if_no_refs,
        varpool_all_refs_explicit_p, cgraph_alias_aliased_node,
        varpool_alias_aliased_node, cgraph_edge_recursive_p): Update
        field references.
        * cgraph.c: Likewise.
        (cgraph_hash, assembler_name_hash): Turn into symtab_node.
        * cgraphbuild.c: Likewise.
        * lto-symtab.c: Likewise.
        * c-gimplify.c: Likewise.
        * value-prof.c: Likewise.
        * tree.c: Likewise.
        * ipa-cp.c: Likewise.
        * tree-emutls.c: Likewise.
        * ipa-inline-transform.c: Likwise.
        * ipa-reference.c: Likewise.
        * cgraphunit.c: Likewise.
        * ipa-ref.c: Likewise.
        * lto-cgraph.c: Likewise.
        * ipa-ref-inline.h: Likewise.
        * ipa-pure-const.c: Likewise.
        * lto-streamer-out.c: Likewise.
        * ipa-utils.c: Likewise.
        * ipa-inline.c: Likewise.
        * matrix-reorg.c: Likewise.
        * tree-eh.c: Likewise.
        * tree-vectorizer.c: Likewise.
        * ipa-split.c: Likewise.
        * ipa.c: Likewise.
        * trans-mem.c: Likewise.
        * ipa-inline-analysis.c: Likewise.
        * gimplify.c: Likewise.
        * cfgexpand.c: Likewise.
        * tree-sra.c: Likewise.
        * ipa-prop.c: Likewise.
        * varasm.c: Likewise.
        * tree-nested.c: Likewise.
        * tree-inline.c: Likewise.
        * tree-profile.c: Likewise.
        * tree-ssa-structalias.c: Likewise.
        * passes.c: Likewise.
        * varpool.c: Likewise.

2012-04-14  Tom de Vries  <tom@codesourcery.com>

        * tree-ssa-tail-merge.c (stmt_local_def): New function, factored out of
        same_succ_hash, with local_def inlined.  Use SINGLE_SSA_DEF_OPERAND.
        Use FOR_EACH_IMM_USE_FAST instead of FOR_EACH_IMM_USE_STMT.  Remove use
        of find_edge.
        (gsi_advance_fw_nondebug_nonlocal): New function.
        (local_def): Removed function.
        (same_succ_hash): Use stmt_local_def.
        (same_succ_equal): Use gsi_advance_fw_nondebug_nonlocal.
        (gsi_advance_bw_nondebug_nonlocal): Use stmt_local_def.

2012-04-13  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386-c.c (ix86_target_macros): Define _ILP32
        and __ILP32__ for x32.

2012-04-13  Martin Jambor  <mjambor@suse.cz>

        PR middle-end/52939
        * gimple-fold.c (gimple_get_virt_method_for_binfo): Bail out if
        fold_ctor_reference returns a zero constant.

2012-04-13  Enkovich Ilya  <ilya.enkovich@intel.com>

        * config.gcc: Add i386/gnu-user-common.h before all
        i386/gnu-user.h and i386/gnu-user64.h usages.

        * config/i386/gnu-user-common.h: New.

        * config/i386/gnu-user.h (CPP_SPEC): Moved to gnu-user-common.h.
        (CC1_SPEC): Likewise.
        (ENDFILE_SPEC): Likewise.
        (DEFAULT_PCC_STRUCT_RETURN): Likewise.
        (TARGET_TLS_DIRECT_SEG_REFS_DEFAULT): Likewise.
        (TARGET_OS_CPP_BUILTINS): Likewise.
        (LIBGCC2_HAS_TF_MODE): Likewise.
        (LIBGCC2_TF_CEXT): Likewise.
        (TF_SIZE): Likewise.
        (TARGET_ASM_FILE_END): Likewise.
        (STACK_CHECK_MOVING_SP): Likewise.
        (STACK_CHECK_STATIC_BUILTIN): Likewise.
        * config/i386/gnu-user64.h: Likewise.

2012-04-13  Martin Jambor  <mjambor@suse.cz>

        * expr.c (expand_expr_real_1): Pass type, not the expression, to
        set_mem_attributes for a memory temporary. Do not call the function
        for the memory temporary created for a bitfield.

2012-04-13  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/48866
        * df.h (enum debug_temp_where): New.
        (dead_debug_init, dead_debug_finish) Declare.
        (dead_debug_add, dead_debug_insert_temp): Declare.
        (struct dead_debug_use, struct dead_debug): Moved from...
        * df-problems.c: ... here.
        (df_set_unused_notes_for_mw): Bind debug uses of unused regno
        to a debug temp.
        (df_create_unused_note): Likewise.
        (df_set_dead_notes_for_mw): Move comment where it belongs.
        (dead_debug_init): Export.
        (dead_debug_reset_uses): New, factored out of...
        (dead_debug_finish): ...this.  Export.
        (dead_debug_reset): Remove.
        (dead_debug_add): Export.
        (dead_debug_insert_before): Rename to...
        (dead_debug_insert_temp): ... this.  Add where argument.  Export.
        Locate stored value for BEFORE_WITH_VALUE.  Avoid repeat inserts.
        Return insertion count.
        (df_note_bb_compute): Adjust.
        * dce.c (word_dce_process_block): Adjust dead debug uses.
        (dce_process_block): Likewise.

2012-04-13  Alexandre Oliva  <aoliva@redhat.com>

        * df-problems.c (df_note_bb_compute): Do not take note of
        debug uses for whose REGs we won't emit DEAD or UNUSED notes.

2012-04-13  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/51570
        * var-tracking.c (expand_depth): New type.
        (onepart_aux, expand_loc_callback_data): Change depth type to it.
        (loc_exp_dep_alloc): Adjust initializer.
        (update_depth): Use new type.  Add entryvals.
        (vt_expand_var_loc_chain): Take note of expansions with
        ENTRY_VALUEs, but don't accept them right away.  Run an optional
        second pass accepting the minimum ENTRY_VALUE count found in the
        first pass.
        (vt_expand_loc_callback, INIT_ELCD): Adjust.

2012-04-13  Tom de Vries  <tom@codesourcery.com>

        * tree-ssa-tail-merge.c (gsi_advance_bw_nondebug_nonlocal): Add
        parameters vuse and vuse_escaped.
        (find_duplicate): Init vuse1, vuse2 and vuse_escaped.  Pass to
        gsi_advance_bw_nondebug_nonlocal.  Return if vuse_escaped and
        vuse1 != vuse2.

2012-04-13  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52969
        * tree-if-conv.c (predicate_mem_writes): Properly gimplify
        the condition for the COND_EXPR and handle predicate negation
        by swapping the COND_EXPR arms.

2012-04-13  Nick Clifton  <nickc@redhat.com>

        * config/rl78/rl78.c (rl78_devirt_pass): Remove use of
        TODO_dump_func flag.

2012-04-13  Andrey Belevantsev  <abel@ispras.ru>

        PR rtl-optimization/52203
        PR rtl-optimization/52715

        Revert the 2012-03-07 fix for PR 52203.
        * sel-sched.c (reset_sched_cycles_in_current_ebb): Check that
        the insn does not modify DFA right before issuing, adjust
        issue_rate accordingly.

2012-04-13  Richard Guenther  <rguenther@suse.de>

        PR c/52549
        * c-typeck.c (pointer_diff): Remove bogus assert.

2012-04-13  Richard Guenther  <rguenther@suse.de>

        PR c/52862
        * convert.c (convert_to_pointer): Remove special-casing of zero.

2012-04-13  Joey Ye  <joey.ye@arm.com>

        * config/arm/constraints.md (Pe): New constraint.
        * config/arm/arm.md: New split for imm 256-510.

2012-04-13  Terry Guo  <terry.guo@arm.com>

        * config/arm/arm-cores.def: Added core cortex-m0plus.
        * config/arm/arm-tune.md: Regenerated.
        * config/arm/arm-tables.opt: Regenerated.
        * doc/invoke.texi: Added entry for cpu ARM cortex-m0plus.

2012-04-13  Alan Modra  <amodra@gmail.com>

        PR target/52828
        * config/rs6000/rs6000.c (rs6000_emit_stack_tie): Rewrite with
        tie regs on destination of sets.  Delete forward declaration.
        (rs6000_emit_stack_reset): Update rs6000_emit_stack_tie calls.
        (rs6000_emit_prologue): Likewise.
        (rs6000_emit_epilogue): Likewise.  Use in place of gen_frame_tie
        and gen_stack_tie.
        (is_mem_ref): Use tie_operand to recognise stack ties.
        * config/rs6000/predicates.md (tie_operand): New.
        * config/rs6000/rs6000.md (restore_stack_block): Generate new
        stack tie rtl.
        (restore_stack_nonlocal): Likewise.
        (stack_tie): Update.
        (frame_tie): Delete.

2012-04-12  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * tree-ssa-reassoc.c (attempt_builtin_powi_stats): Change %ld to
        HOST_WIDE_INT_PRINT_DEC in format strings.

2012-04-12  Uros Bizjak  <ubizjak@gmail.com>

        PR target/52932
        * config/i386/avx2intrin.h (_mm256_permutevar8x32_ps): Change second
        argument type to __m256i.  Update call to __builtin_ia32_permvarsf256.
        * config/i386/sse.md (UNSPEC_VPERMVAR): New.
        (UNSPEC_VPERMSI, UNSPEC_VPERMSF): Remove.
        (avx2_permvarv8sf, avx2_permvarv8si): Switch operands 1 and 2.
        (avx2_permvar<mode>): Macroize insn from avx2_permvarv8sf and
        avx2_permvarv8si using VI4F_256 mode iterator.
        * config/i386/i386.c (bdesc_args) <__builtin_ia32_permvarsf256>:
        Update builtin type to V8SF_FTYPE_V8SF_V8SI.
        (ix86_expand_vec_perm): Update calls to gen_avx2_permvarv8si and
        gen_avx2_permvarv8sf.
        (expand_vec_perm_pshufb): Ditto.

2012-04-12  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/52775
        * config/rs6000/rs6000.h (TARGET_FCFID): Add TARGET_PPC_GPOPT to
        the list of options to enable the FCFID instruction.
        (TARGET_EXTRA_BUILTINS): Adjust comment.

2012-04-12  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/18589
        * tree-ssa-reassoc.c (reassociate_stats): Add two fields.
        (operand_entry): Add count field.
        (add_repeat_to_ops_vec): New function.
        (completely_remove_stmt): Likewise.
        (remove_def_if_absorbed_call): Likewise.
        (remove_visited_stmt_chain): Remove feeding builtin pow/powi calls.
        (acceptable_pow_call): New function.
        (linearize_expr_tree): Look for builtin pow/powi calls and add operand
        entries with repeat counts when found.
        (repeat_factor_d): New struct and associated typedefs.
        (repeat_factor_vec): New static vector variable.
        (compare_repeat_factors): New function.
        (get_reassoc_pow_ssa_name): Likewise.
        (attempt_builtin_powi): Likewise.
        (reassociate_bb): Call attempt_builtin_powi.
        (fini_reassoc): Two new calls to statistics_counter_event.

2012-04-12  Richard Guenther  <rguenther@suse.de>

        * Makefile.in (cgraphunit.o): Add $(EXCEPT_H) dependency.
        * cgraph.h (tree_rest_of_compilation): Remove.
        * cgraph.c (cgraph_add_new_function): Move ...
        * cgraphunit.c (cgraph_add_new_function): ... here.
        (tree_rest_of_compilation): Make static.
        (cgraph_expand_function): Do not set cgraph_function_flags_ready.
        * tree-optimize.c (gate_all_optimizations, pass_all_optimizations,
        gate_all_early_local_passes, execute_all_early_local_passes,
        pass_early_local_passes, gate_all_early_optimizations,
        pass_all_early_optimizations): Move ...
        * passes.c (gate_all_optimizations, pass_all_optimizations,
        gate_all_early_local_passes, execute_all_early_local_passes,
        pass_early_local_passes, gate_all_early_optimizations,
        pass_all_early_optimizations): ... here.
        * tree-optimize.c (execute_free_datastructures): Remove.
        * tree-flow.h (execute_free_datastructures): Remove.
        * tree-optimize.c (execute_init_datastructures,
        pass_init_datastructures): Move ...
        * tree-ssa.c (execute_init_datastructures,
        pass_init_datastructures): ... here.
        * cfgexpand.c (gimple_expand_cfg): Inline-expand call to
        execute_free_datastructures.

2012-04-12  Bernd Schmidt  <bernds@codesourcery.com>

        * dbgcnt.def (ira_move): New counter.
        * ira-int.h (ira_create_new_reg): Declare function.
        (first_moveable_pseudo, last_moveable_pseudo): Declare variables.
        * ira-emit.c (ira_create_new_reg): Renamed from craete_new_reg and
        no longer static.  All callers changed.
        * ira.c: Include "dbgcnt.h".
        (rtx_moveable_p, insn_dominated_by_p, find_moveable_pseudos,
        move_unallocated_pseudos): New static functions.
        (first_moveable_pseudo, last_moveable_pseudo): New global variables.
        (pseudo_replaced_reg, pseudo_move_insn): New static variables.
        (ira): Call find_moveable_pseudos and move_unallocated_pseudos.
        * ira-costs.c (find_costs_and_classes): Assign a memory cost of zero
        to the pseudos generated in find_moveable_pseudos.
        * Makefile.in (ira.o): Add $(DBGCNT_H).

2012-04-12  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52943
        * tree-chrec.h (chrec_is_positive): Remove.
        * tree-scalar-evolution.c (chrec_is_positive): Move ...
        * tree-data-ref.c (chrec_is_positive): ... here.  Make static.
        Return false for a constant zero instead of negative.
        (analyze_siv_subscript_cst_affine): Handle zero difference
        in the initial condition explicitely.

2012-04-12  Richard Guenther  <rguenther@suse.de>

        * tree-parloops.c (parallelize_loops): Also consult the upper
        bound for the number of iterations.
        * tree-ssa-loop-prefetch.c (determine_loop_nest_reuse): Likewise.
        (loop_prefetch_arrays): Likewise.

2012-04-12  Richard Guenther  <rguenther@suse.de>

        * cfgloop.h (estimated_loop_iterations_int): Ditch
        'conservative' parameter.
        (max_stmt_executions_int): Likewise.
        (estimated_loop_iterations): Likewise.
        (max_stmt_executions): Likewise.
        (max_loop_iterations): Declare.
        (max_loop_iterations_int): Likewise.
        (estimated_stmt_executions): Likewise.
        (estimated_stmt_executions_int): Likewise.
        * tree-ssa-loop-niter.c (estimated_loop_iterations):
        Split parts to ...
        (max_loop_iterations): ... this.
        (estimated_loop_iterations_int): Split parts to ...
        (max_loop_iterations_int): ... this.
        (max_stmt_executions_int): Split parts to ...
        (estimated_stmt_executions_int): ... this.
        (max_stmt_executions): Split parts to ...
        (estimated_stmt_executions): ... this.
        * graphite-sese-to-poly.c (build_loop_iteration_domains): Adjust.
        * predict.c (predict_loops): Likewise.
        * tree-data-ref.c (max_stmt_executions_tree): Likewise.
        (analyze_siv_subscript_cst_affine): Likewise.
        (compute_overlap_steps_for_affine_1_2): Likewise.
        (analyze_subscript_affine_affine): Likewise.
        (init_omega_for_ddr_1): Likewise.
        * tree-parloops.c (parallelize_loops): Likewise.
        * tree-ssa-loop-ivopts.c (avg_loop_niter): Likewise.
        (may_eliminate_iv): Likewise.
        * tree-ssa-loop-prefetch.c (determine_loop_nest_reuse): Likewise.
        (loop_prefetch_arrays): Likewise.
        * tree-vrp.c (adjust_range_with_scev): Likewise.

2012-04-12  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh.h (RETURN_ADDR_RTX): Use NULL_RTX instead of 0.
        * config/sh/sh.c (INSN_REGMODE_WEIGHT, CURR_REGMODE_PRESSURE):
        Fix line width.
        (dump_table): Use bool type for need_align and have_df variables.
        (find_barrier, sfunc_uses_reg): Use NULL_RTX instead of 0.
        (regs_used): Remove register modifier.
        (barrier_align): Move variables slot, credit, jump_to_next
        into if block above for loop.  Use bool type for jump_to_next.
        (sh_function_arg): Use NULL_RTX instead of 0.

2012-04-11  Andreas Schwab  <schwab@linux-m68k.org>

        * config/m68k/m68k.md (rotrhi3+1): Name it rotrhi_lowpart.
        (bswapsi2): New expander.

2012-04-11  H.J. Lu  <hongjiu.lu@intel.com>

        * config/host-linux.c (TRY_EMPTY_VM_SPACE): Defined to
        0x60000000 if __x86_64 is defined and __LP64__ isn't defined.

2012-04-11  H.J. Lu  <hongjiu.lu@intel.com>

        PR rtl-optimization/52876
        * emit-rtl.c (set_reg_attrs_from_value): Handle arbitrary value.
        Don't call mark_reg_pointer for incompatible pointer sign extension.

        * reginfo.c (reg_scan_mark_refs): Call set_reg_attrs_from_value
        directly.

2012-04-11  Bernd Schmidt  <bernds@codesourcery.com>

        * fold-const.c (fold_unary_loc): Use GET_MODE_PRECISION for
        comparisons against TYPE_PRECISION.
        * tree-ssa-forwprop.c (combine_conversions): Likewise.

2012-04-11  Xinliang David Li  <davidxl@google.com>

        * tree-passes.h: Remove TODO_dump_func.
        * tree-ssa-tail-merge.c (tail_merge_optimize): Remove TODO_dump_func.
        * trans-mem.c: Remove TODO_dump_func.
        * ira.c: Remove TODO_dump_func.

2012-04-11  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (ix86_option_override_internal): Check
        SUBTARGET_OVERRIDE_OPTIONS and SUBSUBTARGET_OVERRIDE_OPTIONS
        after TARGET_64BIT is updated.

2012-04-11  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh.h: Remove old secondary reload code.

2012-04-11  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh.c (SCHED_REORDER): Merge macro into ...
        (ready_reorder): ... this function.

2012-04-11  Bernd Schmidt  <bernds@codesourcery.com>

        * sel-sched.c (sel_global_init): Swap order of sched_rgn_init and
        sched_init calls.

        * haifa-sched.c (prune_ready_list): Rework handling of SCHED_GROUP_P
        insns so that no other insn is queued for a time before them.

        * config/c6x/c6x.md (load_got_gotoff): Set op_pattern attribute to
        unknown.

2012-04-11  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52621
        * tree-chrec.c (evolution_function_is_invariant_rec_p): Properly
        consider loop nesting.
        (evolution_function_is_univariate_p): Properly check the remainder
        for chrecs.

2012-04-11  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52918
        * except.c (sjlj_emit_dispatch_table): Properly update loop structure.

2012-04-11  Nick Clifton  <nickc@redhat.com>

        * config/rl78/rl78.c (rl78_expand_prologue): Set stack use
        information, if requested.

        * config/rx/rx.c (rx_expand_prologue): Likewise.

2012-04-11  Peter Bergner  <bergner@vnet.ibm.com>
            Michael Matz  <matz@suse.de>

        PR target/16458
        * rtlanal.c (unsigned_reg_p): New function.
        Update copyright notice dates.
        * rtl.h (unsigned_reg_p): Prototype it.
        Update copyright notice dates.
        * config/rs6000/rs6000.c (rs6000_generate_compare): Use it.
        Update comment.
        * expr.c (expand_expr_real_1): Set register attributes.
        * stmt.c (expand_case): Likewise.

2012-04-11  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/50751
        * config/sh/sh-protos.h (sh_legitimate_index_p): Add new arguments
        consider_sh2a and allow_zero.
        * config/sh/sh.c (sh_legitimate_index_p): Likewise.
        (disp_addr_displacement): New function.
        (sh_address_cost): Use disp_addr_displacement function instead
        of DISP_ADDR_OFFSET.
        (sh_legitimate_address_p): Adapt to changed
        sh_legitimate_index_p declaration.
        (sh_find_mov_disp_adjust): Remove HImode check.
        (sh_secondary_reload): Add HImode case.  Use satisfies_constraint_Sdd,
        disp_addr_displacement and max_mov_insn_displacement.
        (max_mov_insn_displacement): Remove HImode check.
        * config/sh/sh.h (CONST_OK_FOR_K04, CONST_OK_FOR_K12,
        DISP_ADDR_P, DISP_ADDR_OFFSET): Remove.
        * config/sh/constraints.md (K05, K13): New constraints.
        (K12): Correct comment.
        (Sdd): Do not use DISP_ADDR_P macro.
        (Snd, Sbw): Use satisfies_constraint_Sdd.
        * config/sh/sh.md (extendhisi2): Remove constraints from expander.
        (*extendhisi2_compact, movhi_i): Remove.
        (*extendhisi2_compact_reg, *extendhisi2_compact_mem_disp,
        *extendhisi2_compact_mem_disp, *extendhisi2_compact_snd,
        *movhi_reg_reg, *movhi_store_mem_disp05, *movhi_store_mem_disp13,
        *movhi_load_mem_disp, *movhi_load_mem_disp, *movhi): New insns.
        (*extendqisi2_compact_mem_disp, *extendqisi2_compact_mem_disp,
        *movqi_store_mem_disp04, *movqi_store_mem_disp12, *movqi_load_mem_disp,
        *movqi_load_mem_disp): Use sh_legitimate_index_p instead of
        CONST_OK_FOR_Kxx.
        Add new peepholes for HImode displacement addressing.

2012-04-11  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh.h (SIDI_OFF): Remove.
        * config/sh/sh.md: Use gen_highpart and gen_lowpart to access
        DImode subregs instead of gen_rtx_REG or simplifly_gen_subreg
        or operand_subword.

2012-04-11  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/52624
        * doc/extend.texi (Other Builtins): Document __builtin_bswap16.
        (PowerPC AltiVec/VSX Built-in Functions): Remove it.
        * doc/md.texi (Standard Names): Add bswap.
        * builtin-types.def (BT_UINT16): New primitive type.
        (BT_FN_UINT16_UINT16): New function type.
        * builtins.def (BUILT_IN_BSWAP16): New.
        * builtins.c (expand_builtin_bswap): Add TARGET_MODE argument.
        (expand_builtin) <BUILT_IN_BSWAP16>: New case.  Pass TARGET_MODE to
        expand_builtin_bswap.
        (fold_builtin_bswap): Add BUILT_IN_BSWAP16 case.
        (fold_builtin_1): Likewise.
        (is_inexpensive_builtin): Likewise.
        * optabs.c (expand_unop): Deal with bswap in HImode specially.  Add
        missing bits for bswap to libcall code.
        * tree.c (build_common_tree_nodes): Build uint16_type_node.
        * tree.h (enum tree_index): Add TI_UINT16_TYPE.
        (uint16_type_node): New define.
        * config/rs6000/rs6000-builtin.def (RS6000_BUILTIN_BSWAP_HI): Delete.
        * config/rs6000/rs6000.c (rs6000_expand_builtin): Remove handling of
        above builtin.
        (rs6000_init_builtins): Likewise.
        * config/rs6000/rs6000.md (bswaphi2): Add TARGET_POWERPC predicate.

2012-04-11  Tristan Gingold  <gingold@adacore.com>

        * doc/extend.texi (Type Attributes): Move paragraph.

2012-04-11  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR 24985
        * diagnostic.h (show_caret): Declare.
        (caret_max_width): Declare.
        (diagnostic_show_locus): Declare.
        * diagnostic.c (diagnostic_initialize): Initialize to false.
        (diagnostic_show_locus): New.
        (diagnostic_report_diagnostic): Call it.
        (getenv_columns): New.
        (adjust_line): New.
        (diagnostic_set_caret_max_width): New.
        * input.c (read_line): New.
        (location_get_source_line): New.
        * input.h (location_get_source_line): Declare.
        * toplev.c (general_init): Initialize show_caret from options.
        * dwarf2out.c (gen_producer_string): Handle fdiagnostics-show-caret.
        * opts.c (common_handle_option): Likewise.
        * pretty-print.h (pp_get_prefix): New.
        (pp_base_get_prefix): New.
        * common.opt (fdiagnostics-show-caret): New option.
        * doc/invoke.texi (fdiagnostics-show-caret): Document it.

2012-04-11  Richard Guenther  <rguenther@suse.de>

        PR rtl-optimization/52881
        * ifcvt.c (find_if_case_2): Avoid speculating loop latches.

2012-04-11  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52912
        * tree-ssa-threadupdate.c (thread_block): Tell the cfg
        manipulation code we are threading through a loop header
        to an exit destination.

2012-04-10  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * tree.h (warn_if_unused_value): Move declaration from here.
        * stmt.c (warn_if_unused_value): Move definition from here.

2010-04-10  Michael Matz  <matz@suse.de>

        * tree-vectorizer.h (_loop_vec_info.strided_stores): Rename to
        grouped_stores.
        (LOOP_VINFO_STRIDED_STORES): Rename to LOOP_VINFO_GROUPED_STORES.
        (struce _bb_vec_info.strided_stores): Rename to grouped_stores.
        (BB_VINFO_STRIDED_STORES): Rename to BB_VINFO_GROUPED_STORES.
        (STMT_VINFO_STRIDED_ACCESS): Rename to STMT_VINFO_GROUPED_ACCESS.
        (vect_strided_store_supported): Rename to vect_grouped_store_supported.
        (vect_strided_load_supported): Rename to vect_grouped_load_supported.
        (vect_transform_strided_load): Rename to vect_transform_grouped_load.
        (vect_record_strided_load_vectors): Rename to
        vect_record_grouped_load_vectors.
        * tree-vect-data-refs.c (vect_update_misalignment_for_peel):
        Rename use of above macros.
        (vect_verify_datarefs_alignment): Ditto.
        (vector_alignment_reachable_p): Ditto.
        (vect_peeling_hash_get_lowest_cost): Ditto.
        (vect_enhance_data_refs_alignment): Ditto.
        (vect_analyze_group_access): Ditto and rename stride to groupsize.
        (vect_analyze_data_ref_access): Rename "strided" to "grouped".
        (vect_strided_store_supported): Rename to vect_grouped_store_supported.
        (vect_strided_load_supported): Rename to vect_grouped_load_supported.
        (vect_transform_strided_load): Rename to vect_transform_grouped_load.
        (vect_record_strided_load_vectors): Rename to
        vect_record_grouped_load_vectors.
        * tree-vect-loop.c (new_loop_vec_info): Rename use of above macros.
        (destroy_loop_vec_info): Ditto.
        (vect_transform_loop): Ditto and rename strided_store to grouped_store.
        * tree-vect-slp.c (vect_build_slp_tree): Rename use of above macros.
        (vect_analyze_slp): Ditto.
        (new_bb_vec_info): Ditto.
        (destroy_bb_vec_info): Ditto.
        (vect_schedule_slp_instance): Ditto and rename strided_store to
        grouped_store.
        * tree-vect-stmts.c (vect_cost_strided_group_size): Rename to
        vect_cost_group_size.
        (vect_model_store_cost): Rename use of above macros and call
        to vect_cost_strided_group_size.
        (vect_model_load_cost): Ditto.
        (vectorizable_store): Ditto, rename strided_store to grouped_store
        and calls to renamed tree-vectorizer.h functions.
        (vectorizable_load): Ditto.
        (vect_transform_stmt): Rename use of above macros and strided_store
        to grouped_store.

2012-04-10  Jan Hubicka  <jh@suse.cz>

        * cgraph.h: Remove misledaing comment on ipa-ref.h.
        (symtab_type): New enum.
        (symtab_node): New structure.
        (cgraph_node, varpool_node): Add symbol base type.
        (cgraph, varpool): New accestor functions.
        * cgraph.c (cgraph_create_node_1): Set symbol type.
        * varpool.c (varpool_node): Set symbol type.

2012-04-10  Ulrich Weigand  <ulrich.weigand@linaro.org>
            Richard Sandiford  <rdsandiford@googlemail.com>

        * fwprop.c (propagate_rtx): Also set PR_CAN_APPEAR for subregs.

2012-04-10  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52888
        * gimple-low.c (gimple_check_call_args): Properly account for
        compatible aggregate types.

2012-04-10  Richard Guenther  <rguenther@suse.de>

        * toplev.h (tree_rest_of_compilation): Remove.
        * tree-optimize.c (tree_rest_of_compilation): Likewise.
        * cgraph.h (tree_rest_of_compilation): Declare.
        * tree-optimize.c (tree_rest_of_compilation): Move ...
        * cgraphunit.c (tree_rest_of_compilation): ... here.
        * cgraph.c (cgraph_add_new_function): Adjust.
        * Makefile.in (tree-optimize.o): Adjust.
        (cgraphunit.o): Likewise.

2012-04-10  Ulrich Weigand  <ulrich.weigand@linaro.org>

        PR tree-optimization/52870
        * tree-vect-patterns.c (vect_recog_widen_mult_pattern): Verify that
        presumed pattern statement is within the same loop or basic block.

2012-04-10  Tristan Gingold  <gingold@adacore.com>

        * gengtype.c (main): Make uintptr_t a known type.

2012-04-10  Richard Guenther  <rguenther@suse.de>

        * tree-pass.h (tree_lowering_passes): Remove.
        * tree-optimize.c (tree_lowering_passes): Remove.
        * cgraph.c (cgraph_add_new_function): Inline relevant parts
        of tree_lowering_passes, avoid redundant call of early local passes.
        * cgraphunit.c (cgraph_lower_function): Fold into ...
        (cgraph_analyze_function): ... its single caller.  Inline
        relevant parts of tree_lowering_passes.

2012-04-09  H.J. Lu  <hongjiu.lu@intel.com>

        PR other/52777
        * config/pa/pa.opt: Remove SIO and GNU_LD.

2012-04-09  Jan Hubicka  <jh@suse.cz>

        PR lto/52722
        PR lto/51765
        PR lto/52634
        * lto-cgraph.c (compute_ltrans_boundary): When alias is in the
        boundary, add its target too.
        * lto.c (add_references_to_partition): Add also aliased nodes.
        (add_cgraph_node_to_partition,
        add_varpool_node_to_partition): Work on nodes, not functions/variables;
        when adding alias, add also the aliased object.

2012-04-09  Uros Bizjak  <ubizjak@gmail.com>

        PR target/52883
        * config/i386/predicates.md (x86_64_zext_general_operand): Prevent
        VOIDmode immediate operands.
        * config/i386/constraints.md (Wz): New constraint.
        * config/i386/i386.md (*zero_extendsidi2_rex64): Use Wz instead of Z.

2012-04-09  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/52717
        * config/sparc/sparc.c (sparc_file_end): Set TREE_PUBLIC explicitly on
        the DECL generated for the special GOT helper.

2012-04-09  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/constraints.md: Update list of constraints in
        comment block.
        (Sr0): Remove unused memory constraint.

2012-04-08  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * tree-pretty-print.h: Update comment.

2012-04-08  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh.md: Use braced string notation where applicable.
        (*prefetch_i4, prefetch_m2a): Merge into ...
        (*prefetch): ... this new insn.

2012-04-07  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh.h (high_life_started): Remove
        * config/sh/predicates.md (general_movdst_operand): Use
        'reload_in_progress' instead of 'high_life_started'.
        * config/sh/sh.md (divsi_inv_call, *divsi_inv_call_combine,
        divsi_inv_fp): Likewise.

2012-04-07  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh-protos.h (prepare_move_operands): Return void
        instead of int.
        * config/sh/sh.c (prepare_move_operands): Likewise.
        * config/sh/sh.md: Remove return value checks of prepare_move_operands.

2012-04-07  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh-protos.h (fp_int_operand, symbol_ref_operand,
        general_movsrc_operand, general_movdst_operand, arith_reg_operand,
        fp_arith_reg_operand, arith_operand, arith_reg_or_0_operand,
        logical_operand, fpscr_operand, fpul_operand, expand_fp_branch,
        commutative_float_operator, noncommutative_float_operator,
        sh_handle_pragma): Remove.

2012-04-06  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi:  Clean up Texinfo markup throughout the file.
        Use @option markup on command-line options.  Use @samp markup on
        literal keywords to options.  Use @code markup on code fragments.
        Use other markup in preference to quotation marks in the text.
        Add markup to some passages without any.

2012-04-06  Mike Stump  <mikestump@comcast.net>

        * gimple-fold.c (gimple_fold_stmt_to_constant_1): Avoid warning.

2012-04-06  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh.c (hi_const): Remove.
        (find_barrier, sh_reorg): Use satisfies_constraint_I16 instead
        of hi_const.

2012-04-06  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh-protos.h (sh_expand_t_scc): Change return type from int
        to bool.
        * config/sh/sh.c (sh_expand_t_scc): Likewise.
        * config/sh/sh.md (cstoresi4, cstoredi4): Remove GET_CODE checks before
        calling sh_expand_t_scc.

2012-04-06  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh-protos.h (fp_zero_operand, fp_one_operand,
        nonpic_symbol_mentioned_p, expand_block_move, expand_ashiftrt,
        sh_dynamicalize_shift_p, gen_shl_and, gen_shl_sext, system_reg_operand,
        reg_unused_after, sh_can_redirect_branch, sh_need_epilogue, fldi_ok,
        sh_hard_regno_rename_ok, sh_cfun_interrupt_handler_p,
        sh_cfun_resbank_handler_p, sh_attr_renesas_p, sh_cfun_attr_renesas_p,
        check_use_sfunc_addr, sh_contains_memref_p, sh_loads_bankedreg_p,
        sh2a_is_function_vector_call): Use bool as return type.
        (sh_pass_in_reg_p): Remove.
        * config/sh/sh.c (broken_move, mova_p, noncall_uses_reg, high_pressure,
        flow_dependent_p, sh2a_function_vector_p, expand_block_move,
        expand_ashiftrt, sh_dynamicalize_shift_p, gen_shl_and, gen_shl_sext,
        sh_need_epilogue, sh2a_is_function_vector_call, sh_attr_renesas_p,
        sh_cfun_attr_renesas_p, sh_cfun_interrupt_handler_p,
        sh_cfun_resbank_handler_p, system_reg_operand, fp_zero_operand,
        fp_one_operand, fldi_ok, reg_unused_after, sh_can_redirect_branch,
        sh_hard_regno_rename_ok, check_use_sfunc_addr, sh_contains_memref_p,
        sh_loads_bankedreg_p): Use bool as return type.
        (nonpic_symbol_mentioned_p): Use bool as return type.  Remove
        'register' modifier.

2012-04-06  Matt Turner  <mattst88@gmail.com>

        * doc/install.texi: Correct typo "-mno-lsc" -> "-mno-llsc".

2012-04-06  Eric Botcazou  <ebotcazou@adacore.com>

        * config/ia64/ia64.c (ia64_load_pair_ok): Return 0 if the second member
        of the destination isn't also a FP_REGS register.

2012-04-05  Teresa Johnson  <tejohnson@google.com>
            H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.h (ix86_tune_indices): Add X86_TUNE_LCP_STALL.
        * config/i386/i386.md (move immediate to memory peephole2):
        Add cases for HImode move when LCP stall avoidance is needed.
        * config/i386/i386.c (initial_ix86_tune_features): Initialize
        X86_TUNE_LCP_STALL entry.

2012-04-05  Uros Bizjak  <ubizjak@gmail.com>

        PR target/52882
        * config/i386/i386.c (ix86_decompose_address): Allow VOIDmode
        CONST_INT operands, zero-extended with AND.

2012-04-05  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/50751
        * config/sh/sh.c (sh_find_mov_disp_adjust): Take machine_mode as the
        first argument instead of mode size.  Move displacement calculations
        to ...
        (mov_insn_size, max_mov_insn_displacement, mov_insn_alignment_mask):
        ... these new functions.
        (disp_adjust): Remove max_mov_disp field.
        (sh_legitimate_index_p): Use max_mov_insn_displacement and
        mov_insn_alignment_mask.
        (sh_address_cost): Use max_mov_insn_displacement.

2012-04-05  Andrew Stubbs  <ams@codesourcery.com>

        * config/arm/arm.md (arch): Add neon_onlya8 and neon_nota8.
        (arch_enabled): Handle new arch types.
        (one_cmpldi2): Add NEON support.

2012-04-05  Richard Guenther  <rguenther@suse.de>

        * gimple.c (walk_gimple_op): Compute val_only for the LHS
        of an assigment in the canonical way, avoiding is_gimple_mem_rhs.
        (is_gimple_mem_rhs, is_gimple_reg_rhs, is_gimple_stmt): Move ...
        * gimplify.c (is_gimple_mem_rhs, is_gimple_reg_rhs, is_gimple_stmt):
        ... here and make static.
        * gimple.h (is_gimple_mem_rhs, is_gimple_reg_rhs, is_gimple_stmt):
        Remove.

2012-04-05  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-dse.c (dse_optimize_stmt): Remember the stmt
        basic-block before removing it.

2012-04-05  Richard Guenther  <rguenther@suse.de>

        * tree-ssanames.c (release_dead_ssa_names): Compact the SSA
        version namespace as we release the freelist.

2012-04-05  Richard Guenther  <rguenther@suse.de>

        * tree-nrv.c (tree_nrv): Release VDEFs.
        * tree-sra.c (sra_modify_constructor_assign): Likewise.
        (sra_modify_assign): Likewise.
        * tree-vect-stmts.c (vect_remove_stores): Likewise.
        * tree-vect-loop.c (vect_transform_loop): Likewise.
        * tree-ssa-dom.c (optimize_stmt): Likewise.
        * tree-vect-slp.c (vect_schedule_slp): Likewise.
        * tree-ssa-math-opts.c (execute_cse_sincos): Likewise.

2012-04-05  Richard Guenther  <rguenther@suse.de>

        * gimple-iterator.c (gsi_remove): Return whether EH edges need to be
        cleanup.
        * gimple.h (gsi_remove): Adjust.
        * tree-ssa-operands.c (unlink_stmt_vdef): Optimize.
        * tree-ssa-dom.c (optimize_stmt): Use gsi_remove result.
        * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
        * tree-ssa-forwprop.c (remove_prop_source_from_use): Likewise.
        * tree-ssa-math-opts.c (execute_optimize_widening_mul): Likewise.
        * tree-ssa-pre.c (eliminate): Likewise.

2012-04-04  Mike Stump  <mikestump@comcast.net>

        * doc/rtl.texi (const_double): Document as sign-extending.
        * expmed.c (expand_mult): Ensure we don't use shift incorrectly.
        * emit-rtl.c (immed_double_int_const): Refine to state the
        value is signed.
        * simplify-rtx.c (mode_signbit_p): Add a fixme for wider than
        CONST_DOUBLE integers.
        (simplify_const_unary_operation, UNSIGNED_FLOAT): Ensure no
        negative values are converted.  Fix conversions bigger than
        HOST_BITS_PER_WIDE_INT.
        (simplify_binary_operation_1): Ensure we don't use shift incorrectly.
        (simplify_immed_subreg): Sign-extend CONST_DOUBLEs.
        * explow.c (plus_constant_mode): Add.
        (plus_constant): Implement with plus_constant_mode.
        * rtl.h (plus_constant_mode): Add.

2012-04-04  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52808
        * tracer.c (tail_duplicate): Do not tail-duplicate loop header blocks.
        * Makefile.in (tracer.o): Depend on $(CFGLOOP_H).

2012-04-04  Tristan Gingold  <gingold@adacore.com>

        * expr.c (expand_expr_real_2): Handle larger sizetype in
        POINTER_PLUS_EXPR.

2012-04-03  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/t-sh (MULTILIB_MATCHES): Match m2a-single-only
        to m2a-single instead of m2e.

2012-04-03  Eric Botcazou  <ebotcazou@adacore.com>

        * expr.c (get_bit_range): Add OFFSET parameter and adjust BITPOS.
        Change type of BITOFFSET to signed.  Make sure the lower bound of
        the computed range is non-negative by adjusting OFFSET and BITPOS.
        (expand_assignment): Adjust call to get_bit_range.

2012-04-03  Sandeep Kumar Singh  <Sandeep.Singh2@kpitcummins.com>

        * h8300/h8300.c (h8300_current_function_monitor_function_p):
        New function. Added to check monitor functions.
        (h8300_option_override): Modified to generate error/warning
        messages for invalid combinations of different command line
        options.
        * h8300/h8300.md: Generate 'rte' for monitor functions. Do not
        save EXR on stack for monitor function in case of H8S target
        when "-mno-exr" is passed.
        * h8300/h8300-protos.h (h8300_current_function_monitor_function_p):
        Add prototype.
        * doc/invoke.texi: Document H8S options.

2012-04-03  Tristan Gingold  <gingold@adacore.com>

        * configure.ac: Use GCC_AC_FUNC_MMAP_BLACKLIST instead
        of gcc_AC_FUNC_MMAP_BLACKLIST.
        * acinclude.m4 (gcc_AC_FUNC_MMAP_BLACKLIST): Remove.
        * Makefile.in (aclocal_deps): Add mmap.m4.
        * configure: Regenerate.
        * aclocal.m4: Regenerate.

2012-04-03  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52808
        * tracer.c (tail_duplicate): Return whether we have duplicated
        any block.
        (tracer): If we have duplicated any block, cleanup the CFG.
        * cfghooks.c (duplicate_block): If we duplicated a loop
        header but not its loop, destroy the loop because it now has
        multiple entries.
        * tree-ssa-threadupdate.c (thread_through_loop_header): Tell
        the cfg manipulation routines we are not creating a multiple
        entry loop.

2012-04-03  Tristan Gingold  <gingold@adacore.com>

        * config/vms/vms-c.c (vms_pragma_nomember_alignment): Handle
        'byte' alignment.
        (vms_c_common_override_options): Allow parameterless variadic
        functions.

2012-04-03  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/52835
        * tree-data-ref.c (build_rdg): Return NULL if
        compute_data_dependences_for_loop failed.

2012-04-03  Eric Botcazou  <ebotcazou@adacore.com>

        * varasm.c (initializer_constant_valid_for_bitfield_p): Return true
        for REAL_CST as well.
        (output_constructor): Use RECORD_OR_UNION_TYPE_P predicate.
        In the bitfield case, if the value is a REAL_CST, convert it first to
        an INTEGER_CST.

2012-04-02  H.J. Lu  <hongjiu.lu@intel.com>

        * config.gcc: Use i386/biarchx32.h instead of i386/biarch64.h
        for --with-abi={x32|mx32} or --with-multilib-list=mx32.
        (supported_defaults): Add abi for i[34567]86-*-* and x86_64-*-*.

        * config/i386/biarchx32.h: New.

2012-04-02  Anatoly Sokolov  <aesok@post.ru>

        * config/arm/arm.h (PREFERRED_RELOAD_CLASS): Remove.
        * config/arm/arm.c (TARGET_PREFERRED_RELOAD_CLASS): Define.
        (arm_preferred_reload_class): New function.

2012-04-02  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52756
        * tree-ssa-threadupdate.c (def_split_header_continue_p): New function.
        (thread_through_loop_header): After threading through the loop latch
        remove the split part from the loop and clear further threading
        opportunities that would create a multiple entry loop.

2012-04-02  Richard Guenther  <rguenther@suse.de>

        PR rtl-optimization/52800
        * cprop.c (execute_rtl_cprop): Call cleanup_cfg with
        CLEANUP_CFG_CHANGED.

2012-04-02  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52803
        * loop-init.c (gate_handle_loop2): Destroy loops here if
        we don't enter RTL loop optimizers.

2012-04-02  Uros Bizjak  <ubizjak@gmail.com>

        Partially revert:
        2012-03-29  Richard Guenther  <rguenther@suse.de>

        * rtl.h (extended_count): Remove.
        * combine.c (extended_count): Remove.

2012-04-02  Dodji Seketeli  <dodji@redhat.com>

        PR c++/40942
        * pt.c (more_specialized_fn):  Don't apply decay conversion to
        types of function parameters.

2012-04-02  Tristan Gingold  <gingold@adacore.com>

        * ggc-page.c (PAGE_L1_SIZE, PAGE_L2_SIZE, LOOKUP_L1, LOOKUP_L2)
        (ggc_allocated_p, lookup_page_table_entry, set_page_table_entry)
        (alloc_page, init_ggc, clear_marks, struct ggc_pch_data)
        (ggc_pch_this_base): Use uintptr_t instead of size_t.

2012-03-31  H.J. Lu  <hongjiu.lu@intel.com>

        PR bootstrap/52784
        * config/i386/i386.c (ix86_option_override_internal): Don't
        check TARGET_64BIT if TARGET_64BIT_DEFAULT is false.

2012-03-31  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-cfg.c (call_can_make_abnormal_goto): New predicate.
        (stmt_can_make_abnormal_goto): Use it.
        (is_ctrl_altering_stmt): Likewise.

2012-03-30  Naveen H.S  <naveen.S@kpitcummins.com>
            Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.c (push_regs): Skip banked registers when
        resbank attribute is specified.
        (sh_expand_epilogue): Likewise.

2012-03-30  Richard Henderson  <rth@redhat.com>

        PR debug/52727
        * combine-stack-adj.c (prev_active_insn_bb): New.
        (next_active_insn_bb): New.
        (force_move_args_size_note): New.
        (combine_stack_adjustments_for_block): Use it.

2012-03-30  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (struct expand_vec_perm_d): Add one_operand_p.
        (ix86_expand_vector_init_duplicate): Initialize it.
        (expand_vec_perm_palignr): Likewise.
        (ix86_expand_vec_perm_const): Likewise.
        (ix86_vectorize_vec_perm_const_ok): Likewise.
        (expand_vec_perm_blend): Use it.
        (expand_vec_perm_vpermil): Likewise.
        (expand_vec_perm_pshufb): Likewise.
        (expand_vec_perm_1): Likewise.
        (expand_vec_perm_pshuflw_pshufhw): Likewise.
        (expand_vec_perm_interleave2): Likewise.
        (expand_vec_perm_vpermq_perm_1): Likewise.
        (expand_vec_perm_vperm2f128): Likewise.
        (expand_vec_perm_interleave3): Likewise.
        (expand_vec_perm_vperm2f128_vblend): Likewise.
        (expand_vec_perm_vpshufb2_vpermq): Likewise.
        (expand_vec_perm_vpshufb2_vpermq_even_odd): Likewise,.
        (expand_vec_perm_broadcast): Likewise.
        (expand_vec_perm_vpshufb4_vpermq2): Likewise.

2012-03-30  Richard Henderson  <rth@redhat.com>

        * dwarf2out.c (gen_variable_die): Initialize off.

2012-03-30  Tristan Gingold  <gingold@adacore.com>

        * config/vms/vms-f.c: New file.
        * config/vms/t-vms (vms-f.o): New rule.
        * config.gcc (*-*-*vms*): Define fortran_target_objs.

2012-03-30  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52754
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Only
        propagate arbitrary addresses into really plain dereferences.

2012-03-30  Richard Guenther <rguenther@suse.de>

        PR middle-end/52772
        * except.c (emit_to_new_bb_before): Move loop updating ...
        (dw2_build_landing_pads): ... here.  Use a proper block for
        querying the loop father.

2012-03-30  Tristan Gingold  <gingold@adacore.com>

        * config/ia64/ia64.c (ia64_section_type_flags): Remove
        common_object attribute handling.
        (SECTION_VMS_OVERLAY): Remove
        (ia64_vms_common_object_attribute): Replace abort with an assert.
        Do not set DECL_SECTION_NAME.
        (ia64_vms_output_aligned_decl_common): Handle common_object
        attribute.
        (ia64_vms_elf_asm_named_section): Remove.
        * config/ia64/vms.h (TARGET_ASM_NAMED_SECTION): Remove.

2012-03-30  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52786
        * double-int.c (rshift_double): Remove not needed cast.

2012-03-30  Richard Guenther  <rguenther@suse.de>

        * tree-affine.h (print_aff): Remove.
        * tree-affine.c (print_aff): Make static.
        * tree-data-ref.h (access_matrix_get_index_for_parameter): Remove.
        (get_references_in_stmt): Likewise.
        (print_direction_vector): Likewise.
        (print_dir_vectors): Likewise.
        (print_dist_vectors): Likewise.
        (dump_subscript): Likewise.
        (dump_ddrs): Likewise.
        (dump_dist_dir_vectors): Likewise.
        (dump_data_references): Likewise.
        (dump_data_dependence_relation): Likewise.
        (dump_data_dependence_direction): Likewise.
        (dump_rdg_vertex): Likewise.
        (dump_rdg_component): Likewise.
        (debug_ddrs): Declare.
        (struct data_ref_loc_d): Move ...
        * tree-data-ref.c (struct data_ref_loc_d): ... here.
        (get_references_in_stmt): Make static.
        (dump_data_references): Likewise.
        (dump_subscript): Likewise.
        (print_direction_vector): Likewise.
        (print_dir_vectors): Likewise.
        (print_dist_vectors): Likewise.
        (dump_data_dependence_relation): Likewise.
        (dump_dist_dir_vectors): Likewise.
        (dump_ddrs): Likewise.
        (dump_rdg_vertex): Likewise.
        (dump_rdg_component): Likewise.
        (debug_ddrs): New function.
        (access_matrix_get_index_for_parameter): Remove.

2012-03-30  Tristan Gingold  <gingold@adacore.com>

        * config/vms/vms.c (VMS_CRTL_FLOAT32): Rename.
        (VMS_CRTL_FLOAT64, VMS_CRTL_FLOAT64_VAXD): New.
        (VMS_CRTL_FLOAT128, VMS_CRTL_DPML, VMS_CRTL_NODMPL)
        (VMS_CRTL_32ONLY, VMS_CRTL_G_MASK, VMS_CRTL_G_NONE)
        (VMS_CRTL_GA, VMS_CRTL_GL, VMS_CRTL_FLOATV2): New.
        (vms_patch_builtins): Handle new flags
        * config/vms/vms-crtlmap.map: Completed using nm on
        c and math system libraries.
        * config/vms/make-crtlmap.awk: Handle any number of flags.

2012-03-30  Martin Jambor  <mjambor@suse.cz>

        * tree-ssa-ccp.c (insert_clobbers_for_var): Do not assert that there
        is a builtin_stack_save in a dominating BB.

2012-03-29  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (avx_h<plusminus_insn>v4df3): Fix results
        crossing 128bit lane boundary.

2012-03-29  Vladimir Makarov  <vmakarov@redhat.com>

        * ira-color.c (setup_left_conflict_sizes_p): Process all
        conflicting objects.

2012-03-29  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/52760
        * tree-vect-slp.c (vect_get_constant_vectors): Convert constant_p
        shift count for {L,R}{SHIFT,ROTATE}_EXPR to TREE_TYPE (vector_type).

2012-03-29  Richard Guenther  <rguenther@suse.de>

        * cgraph.h (cgraph_materialize_all_clones): Remove.
        (reset_inline_failed): Likewise.
        * cgraphunit.c (cgraph_materialize_all_clones): Make static.
        * cgraphbuild.c (reset_inline_failed): Remove.
        * rtl.h (cse_main): Remove.
        (extended_count): Likewise.
        * cse.c (dump_class): Mark as DEBUG_FUNCTION.
        (cse_main): Make static.
        * combine.c (extended_count): Remove.
        (dump_combine_stats): Mark as DEBUG_FUNCTION.
        * basic-block.h (reorder_basic_blocks): Remove.
        * bb-reorder.c (reorder_basic_blocks): Make static.
        * Makefile.in (dse.o): Remove dse.h dependency.
        * dse.h: Remove.
        * dse.c (gate_dse): Remove.
        (clear_alias_mode_eq): Likewise.
        (clear_alias_mode_hash): Likewise.
        (dse_record_singleton_alias_set): Likewise.
        (dse_invalidate_singleton_alias_set): Likewise.

2012-03-29  H.J. Lu  <hongjiu.lu@intel.com>

        * config/linux-android.h (ANDROID_STARTFILE_SPEC): Use
        crtbegin_so%O%s for -shared.
        (ANDROID_ENDFILE_SPEC): Use crtend_so%O%s for -shared.

2012-03-29  Richard Guenther  <rguenther@suse.de>

        * tree-flow.h (struct pre_expr_d): Remove forward declaration.
        (add_to_value): Remove.
        (print_value_expressions): Likewise.
        * tree-ssa-pre.c (add_to_value): Make static.
        (print_value_expressions): Likewise.
        * gimple.h (gimple_adjust_this_by_delta): Remove.
        * gimple-fold.c (gimple_adjust_this_by_delta): Likewise.

2012-03-29  Richard Guenther  <rguenther@suse.de>

        PR middle-end/50708
        * double-int.h (rshift_double): Remove.
        * double-int.c (lshift_double): Use absu_hwi to make count positive.
        (rshift_double): Make static, take unsigned count argument,
        remove handling of negative count argument.
        (double_int_rshift): Dispatch to lshift_double.

2012-03-28  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/biarch64.h (TARGET_64BIT_DEFAULT): Add
        OPTION_MASK_ABI_64.

        * config/i386/gnu-user64.h (SPEC_64): Support TARGET_BI_ARCH == 2.
        (SPEC_X32): Likewise.
        (MULTILIB_DEFAULTS): Likewise.

        * config/i386/i386.c (isa_opts): Remove -m64.
        (ix86_target_string): Properly handle -m32/-m64/-mx32.
        (ix86_option_override_internal): Properly
        set OPTION_MASK_ISA_64BIT and OPTION_MASK_ISA_X32 as well as
        handle -m32, -m64 and -mx32.

        * config/i386/i386.h (TARGET_X32): Replace OPTION_ISA_X32
        with OPTION_ABI_X32.  Moved after TARGET_LP64.
        (TARGET_LP64): Changed to OPTION_ABI_64.

        * config/i386/i386.opt (m64): Replace ISA_64BIT with ABI_64.
        (mx32): Replace ISA_X32 with ABI_X32.

2012-03-28  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.c (tree_size) <VECTOR_CST>: New case.

2012-03-28  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_modes_tieable_p): Handle 32bit AVX modes.
        (ix86_expand_vector_move_misalign): Remove un-needed gen_lowpart calls.

2012-03-28  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/52691
        * tree-ssa-ccp.c (optimize_stdarg_builtin): Optimize
        __builtin_va_start to __builtin_next_arg if the latter is
        builtin_decl_explicit_p rather than when it is not.

        PR middle-end/52750
        * tree-vect-generic.c (vector_element): Perform multiplication
        for pos in bitsizetype type instead of idx type.

2012-03-28  Richard Guenther  <rguenther@suse.de>

        * loop-init.c (loop_optimizer_init): If loops are preserved
        perform incremental initialization of required loop features.
        (loop_optimizer_finalize): If loops are to be preserved only
        clean up optional loop features.
        (rtl_loop_done): Forcefully free loops here.
        * cgraph.c (cgraph_release_function_body): Forcefully free loops.
        * cfgexpand.c (expand_gimple_cond): Properly add new basic-blocks
        to existing loops.
        (construct_init_block): Likewise.
        (construct_exit_block): Likewise.
        (gimple_expand_cfg): Clear LOOP_CLOSED_SSA loop state.  Cleanup
        the CFG after expanding.
        * cfgloop.c (verify_loop_structure): Calculate or verify dominators.
        If we needed to calculate them, free them afterwards.
        * tree-pass.h (PROP_loops): New define.
        * tree-ssa-loop.c (pass_tree_loop_init): Provide PROP_loops.
        * basic-block.h (CLEANUP_CFG_CHANGED): New.
        * cfgcleanup.c (merge_blocks_move): Protect loop latches.
        (cleanup_cfg): If we did something and have loops around, fix them up.
        * cse.c (rest_of_handle_cse_after_global_opts): Call cleanup_cfg
        with CLEANUP_CFG_CHANGED.
        * cfghooks.c (merge_blocks): If we merge a loop header into
        its predecessor, update the loop structure.
        (duplicate_block): If we copy a loop latch, adjust loop state
        to note we may have multiple latches.
        (delete_basic_block): Mark loops for fixup if we remove a loop.
        * cfganal.c (forwarder_block_p): Protect loop latches, headers
        and preheaders.
        * cfgrtl.c (rtl_can_merge_blocks): Protect loop latches.
        (cfg_layout_can_merge_blocks_p): Likewise.
        * cprop.c (bypass_block): If we create a loop with multiple
        entries, mark it for removal.
        * except.c (emit_to_new_bb_before): Add the new basic-block
        to existing loops.
        * tree-eh.c (lower_resx): Likewise.
        * omp-low.c (finalize_task_copyfn): Do not copy PROP_loops.
        (expand_omp_taskreg): Likewise.
        * tree-inline.c (initialize_cfun): Likewise.
        * tree-mudflap.c (add_bb_to_loop): Prototype.
        (mf_build_check_statement_for): Properly add new basic-blocks
        to existing loops.
        * tree-ssa-threadupdate.c (thread_block): Mark loops for fixup
        if we remove a loop.
        (thread_through_loop_header): Likewise.
        * trans-mem.c (tm_log_emit_save_or_restores): Properly add
        new basic-blocks to existing loops.
        (expand_transaction): Likewise.
        * Makefile.in (except.o): Add $(CFGLOOP_H).
        (expr.o): Likewise.
        (cgraph.o): Likewise.
        (cprop.o): Likewise.
        (cfgexpand.o): Likewise.
        (cfganal.o): Likewise.
        (trans-mem.o): Likewise.
        (tree-eh.o): Likewise.

2012-03-28  Georg-Johann Lay  <avr@gjlay.de>

        PR target/52692
        * config/avr/avr.c (TARGET_BUILTIN_DECL): New define.
        (avr_builtin_decl): New static function.
        (struct avr_builtin_description, avr_bdesc): Move up.
        Add GTY marker. Add field fndecl. Remove redundant field id.
        (avr_init_builtins): Initialize avr_bdesc[ID].fndecl.
        (avr_expand_builtin): Code cleanup because .id is removed.

2012-03-28  Georg-Johann Lay  <avr@gjlay.de>

        PR target/52737
        * config.gcc (tm_file): Remove avr/multilib.h.

        * doc/invoke.texi (AVR Options): Adjust documentation of -mtiny-stack.

        * config/avr/genmultilib.awk: Remove code to generate multilib.h.
        (BEGIN): Use -msp8 as multilib option instead of -mtiny-stack.
        * config/avr/t-avr: Remove generation of multilib.h.
        * config/avr/t-multilib: Regenerate.
        * config/avr/multilib.h: Remove.
        * config/avr/avr.opt (-msp8): New option.
        (avr_sp8): New variable.
        * config/avr/driver-avr.c (avr_device_to_sp8): New function.
        * config/avr/avr.h (AVR_HAVE_SPH): New define.
        (AVR_HAVE_8BIT_SP): Also set by avr_sp8 i.e. -msp8.
        (avr_device_to_sp8): New prototype.
        (EXTRA_SPEC_FUNCTIONS): Add { "device_to_sp8", avr_device_to_sp8 }
        (DRIVER_SELF_SPECS): New define.
        * config/avr/avr-c.c (avr_cpu_cpp_builtins): New built-in defines:
        __AVR_SP8__, __AVR_HAVE_SPH__.
        * config/avr/avr.c (output_movhi): Use AVR_HAVE_SPH instead of
        AVR_HAVE_8BIT_SP to decide if SP_H is present.
        (avr_file_start): Ditto.

2012-03-28  Jakub Jelinek  <jakub@redhat.com>

        PR target/52736
        * config/i386/sse.md (sse2_loadlpd splitter): Use offset 0
        instead of 8 in adjust_address.

2012-03-27  Aurelien Buhrig  <aurelien.buhrig.gcc@gmail.com>

        PR middle-end/51893
        * expmed.c (store_bit_field_1): Fix wordnum value for big-endian
        targets.

2012-03-27  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/50751
        * config/sh/sh.c (sh_legitimize_address, sh_legitimize_reload_address):
        Rearrange conditional logic.  Move displacement address calculations
        to ...
        (sh_find_mov_disp_adjust): ... this new function.

2012-03-27  H.J. Lu  <hongjiu.lu@intel.com>

        * config/arm/arm.opt (mapcs): Remove MaskExists.
        * config/cris/linux.opt (mno-gotplt): Likewise.
        * config/i386/i386.opt (mhard-float): Likewise.
        (msse4): Likewise.
        (mno-sse4): Likewise.
        * config/m68k/m68k.opt (mhard-float): Likewise.
        * config/mep/mep.op (mcop32): Likewise.
        * config/pa/pa-hpux.opt (msio): Likewise.
        * config/pa/pa64-hpux.opt (mgnu-ld): Likewise.
        * config/picochip/picochip.opt (mlittle): Likewise.
        * config/sh/sh.opt (mrenesas): Likewise.
        * config/sparc/long-double-switch.opt (mlong-double-128): Likewise.
        * config/sparc/sparc.opt (mhard-float): Likewise.
        * config/v850/v850.opt (mv850es): Likewise.
        * config/vax/vax.opt (mg-float): Likewise.

2012-03-27  Martin Jambor  <mjambor@suse.cz>

        PR middle-end/52693
        * tree-sra.c (sra_modify_assign): Do not call
        load_assign_lhs_subreplacements when working with an unscalarizable
        region.

2012-03-27  Uros Bizjak  <ubizjak@gmail.com>

        PR target/52698
        * config/i386/i386-protos.h (ix86_legitimize_reload_address):
        New prototype.
        * config/i386/i386.h (LEGITIMIZE_RELOAD_ADDRESS): New define.
        * config/i386/i386.c: Include reload.h.
        (ix86_legitimize_reload_address): New function.

2012-03-27  H.J. Lu  <hongjiu.lu@intel.com>

        * opth-gen.awk: Allocated a bit for Mask and InverseMask if it
        hasn't been allocated.  Define a target macro for Mask and
        InverseMask if it hasn't been defined.  Remove MaskExists handling.

        * doc/options.texi: Remove MaskExists.

2012-03-27  Chung-Lin Tang  <cltang@codesourcery.com>

        PR target/52667
        * config/sh/sh.c (find_barrier): Add equality check of last_got
        to avoid going above orig insn. Update comments.

2012-03-27  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52720
        * fold-const.c (try_move_mult_to_index): Handle &x.array more
        explicitely.

2012-03-27  Eric Botcazou  <ebotcazou@adacore.com>

        * expmed.c (store_bit_field): Assert that BITREGION_START is a multiple
        of a unit before computing the offset in units.
        * expr.c (get_bit_range): Return the null range if the enclosing record
        is part of a larger bit field.

2012-03-27  Tristan Gingold  <gingold@adacore.com>

        * config/ia64/vms.h (CASE_VECTOR_MODE): Define.
        * config/ia64/ia64.md: Remove mode in template.
        Sign extend operand in expand_simple_binop.
        * config/ia64/ia64.h (ASM_OUTPUT_ADDR_DIFF_ELT): Use
        CASE_VECTOR_MODE instead of TARGET_ILP32.
        (ADDR_VEC_ALIGN): Make it depends on CASE_VECTOR_MODE.

2012-03-26  Steven Bosscher  <steven@gcc.gnu.org>

        * varasm.c (assemble_external): #if 0 out the new assert from the
        previous commit, it breaks the Java and Go front ends.

2012-03-26  Steven Bosscher  <steven@gcc.gnu.org>

        * toplev.c (check_global_declaration_1): Do not call assemble_external.
        * expr.c (emit_block_move_libcall_fn): Likewise.
        (clear_storage_libcall_fn): Likewise.
        (expand_expr_addr_expr_1): Likewise.
        (expand_expr_real_1): Likewise.
        * calls.c (rtx_for_function_call): Likewise.

        * varasm.c (assemble_external): Assert this function is only called
        during or after expanding to RTL.

2012-03-26  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/50052
        * tree-sra.c (tree_non_aligned_mem_p): Removed.
        (tree_non_aligned_mem_for_access_p): Likewise.
        (build_accesses_from_assign): Removed strict alignment requirements
        checks.
        (access_precludes_ipa_sra_p): Likewise.

2012-03-26  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52701
        * tree-vect-loop.c (vect_analyze_scalar_cycles_1): Always
        compute and set the evolution part of PHI nodes.

2012-03-26  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52721
        * tree-vect-stmts.c (vect_init_vector): Handle scalars.

2012-03-26  Ulrich Weigand  <ulrich.weigand@linaro.org>

        PR tree-optimization/52686
        * tree-vect-data-refs.c (vect_get_smallest_scalar_type): Handle
        WIDEN_LSHIFT_EXPR.

2012-03-26  Tristan Gingold  <gingold@adacore.com>

        * config/alpha/vms.h (LINK_SPEC): Simplify.
        (STARTFILE_SPEC): Remove -mvms-return-codes handling.
        (NAME__MAIN, SYMBOL__MAIN): Remove.
        (VMS_DEBUG_MAIN_POINTER): Remove.
        * config/ia64/vms.h: Likewise.
        * config/alpha/alpha.c (alpha_start_function): Move vms_debug_main
        code to vms.c.  Call vms_start_function.
        * config/ia64/ia64.c (ia64_start_function): Likewise.
        * config/vms/vms-protos.h (vms_start_function): Declare.
        * config/vms/vms.c (vms_start_function): New function.
        * config/vms/vms.h (MATH_LIBRARY): Define.
        (VMS_DEBUG_MAIN_POINTER): Define.

2012-03-26  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/52629
        * reload1.c (count_pseudo): Short-circuit common case.
        (count_spilled_pseudo): Return early for pseudos without hard regs.
        Assert that the pseudo has got a hard reg before manipulating it.

2012-03-24  Jan Hubicka  <jh@suse.cz>

        PR lto/51663
        * varpool.c (varpool_finalize_decl): Handle toplevel_reorder here.
        (decide_is_variable_needed): Do not handle toplevel reorder here.
        * cgraph.h (varpool_can_remove_if_no_refs): Likewise.
        * ipa.c (cgraph_remove_unreachable_nodes): Remove unreachable vars
        even at -O0.

2012-03-24  Eric Botcazou  <ebotcazou@adacore.com>

        * expr.c (optimize_bitfield_assignment_op) <BIT_IOR_EXPR>: Use str_mode
        and str_bitsize instead of more convoluted expressions.

2012-03-24  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/52610
        * config/sparc/sparc.h (ASM_CPU_SPEC): Pass -Av8 if -mcpu=leon.

2012-03-24  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/52656
        * config/sparc/sparc.c (sparc_handle_vis_mul8x16): Fix pasto.

2012-03-23  Martin Jambor  <mjambor@suse.cz>

        * tree-sra.c (build_accesses_from_assign): Remove FIXME comment.

2012-03-23  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52678
        * tree-vectorizer.h (struct _stmt_vec_info): Add
        loop_phi_evolution_part member.
        (STMT_VINFO_LOOP_PHI_EVOLUTION_PART): New define.
        * tree-vect-loop.c (vect_analyze_scalar_cycles_1): Initialize
        STMT_VINFO_LOOP_PHI_EVOLUTION_PART.
        * tree-vect-loop-manip.c (vect_update_ivs_after_vectorizer):
        Use the cached evolution part and the PHI nodes value from
        the loop preheader edge instead of re-analyzing the evolution.

2012-03-22  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * config/mips/mips-tables.opt: Update.
        * config/mips/mips.md (processor): Add xlp.
        * config/mips/mips-cpus.def: Add xlp.
        * config/mips/mips.c (mips_rtx_cost_data): Add costs for XLP, copy from
        5KF for now.
        * config/mips/mips.h (MIPS_ISA_LEVEL_SPEC): Handle xlp.
        * doc/invoke.texi: Mention XLP.

2012-03-22  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/52547
        * tree-nested.c (convert_tramp_reference_stmt): Call declare_vars
        on any new_local_var_chain vars declared during recursing on
        GIMPLE_OMP_PARALLEL or GIMPLE_OMP_TASK body.

2012-03-22  Uros Bizjak  <ubizjak@gmail.com>

        * config/alpha/alpha.h (ASM_OUTPUT_ALIGN): Move to config/alpha/elf.h
        (ASM_OUTPUT_SKIP): Move to config/alpha/vms.h
        (ASM_OUTPUT_LOCAL): Ditto.
        (ASM_OUTPUT_COMMON): Remove.
        * config/alpha/elf.h (ASM_OUTPUT_DEF_FROM_DECLS): Use ASM_OUTPUT_DEF.
        * config/alpha/vms.h (ASM_OUTPUT_ALIGN): Do not undefine before define.

2012-03-22  Jan Hubicka  <jh@suse.cz>

        PR middle-end/51737
        * cgraph.c (cgraph_remove_node_and_inline_clones): Add FORBIDDEN_NODE
        parameter.
        * cgraph.h (cgraph_remove_node_and_inline_clones): Update prototype.
        * ipa-inline-transform.c (save_inline_function_body): Remove
        copied clone if needed.
        * tree-inline.c (delete_unreachable_blocks_update_callgraph): Update.

2012-03-22  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52666
        * fold-const.c (fold_ternary_loc): Fix typo.

2012-03-22  Georg-Johann Lay  <avr@gjlay.de>

        PR target/52496
        * config/avr/avr.md (unspec): Remove UNSPEC_MEMORY_BARRIER.
        (unspecv): Add UNSPECV_MEMORY_BARRIER.
        (cli_sei): Use unspec_volatile instead of unspec for memory barrier.
        (delay_cycles_1, delay_cycles_2): Ditto.
        (delay_cycles_3, delay_cycles_4): Ditto.
        (nopv, *nopv): Ditto.
        (sleep, *sleep): Ditto.
        (wdr, *wdr): Ditto.

2012-03-22  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52548
        * tree-ssa-pre.c (valid_in_sets): Remove handling of invalidation
        because of clobbers.
        (prune_clobbered_mems): New function.
        (compute_antic_aux): Use it to prune ANTIC_OUT.
        (compute_partial_antic_aux): Use it to prune PA_IN.
        (compute_avail): Only insert expressions into EXP_GEN that are not
        invalidated when translated up to the beginning of the block.

2012-03-22  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52638
        * tree-vect-stmts.c (vect_init_vector_1): New function, split
        out from ...
        (vect_init_vector): ... here.  Handle scalar vector inits.
        (vect_get_vec_def_for_operand): Adjust.
        (vectorizable_load): Likewise.

2012-03-22  Uros Bizjak  <ubizjak@gmail.com>

        * config.gcc (alpha*-*-linux*): Add elfos.h to tm_file.
        (alpha*-*-freebsd*): Ditto.
        (alpha*-*-netbsd*): Ditto.
        (alpha*-*-openbsd*): Ditto.
        * config/alpha/elf.h (OBJECT_FORMAT_ELF): Remove.
        (DWARF2_DEBUGGING_INFO): Remove.
        (PREFERRED_DEBUGGING_TYPE): Remove.
        (ASM_FINAL_SPEC): Remove.
        (IDENT_ASM_OP): Remove.
        (ASM_OUTPUT_IDENT): Remove.
        (SKIP_ASM_OP): Remove.
        (ASM_OUTPUT_SKIP): Remove.
        (ALIGN_ASM_OP): Remove.
        (ASM_OUTPUT_BEFORE_CASE_LABEL): Remove.
        (ASM_OUTPUT_CASE_LABEL): Remove.
        (ASM_OUTPUT_EXTERNAL_LIBCALL): Remove.
        (COMMON_ASM_OP): Remove.
        (ASM_OUTPUT_ALIGNED_COMMON): Remove.
        (ASCII_DATA_ASM_OP): Remove.
        (READONLY_DATA_SECTION_ASM_OP): Remove.
        (INIT_SECTION_ASM_OP): Remove.
        (FINI_SECTION_ASM_OP): Remove.
        (ASM_SECTION_START_OP): Remove.
        (ASM_OUTPUT_SECTION_START_FILE): Remove.
        (TARGET_ASM_NAMED_SECTION): Remove.
        (TARGET_ASM_SELECT_SECTION): Remove.
        (MAKE_DECL_ONE_ONLY): Remove.
        (TYPE_ASM_OP): Remove.
        (SIZE_ASM_OP): Remove.
        (ASM_WEAKEN_LABEL): Remove.
        (TYPE_OPERAND_FMT): Remove.
        (ASM_DECLARE_RESULT): Remove.
        (ASM_DECLARE_OBJECT_NAME): Remove.
        (ASM_FINISH_DECLARE_OBJECT): Remove.
        (ELF_ASCII_ESCAPES): Remove.
        (ELF_STRING_LIMIT): Remove.
        (STRING_ASM_OP): Remove.
        (ASM_OUTPUT_EXTERNAL): Remove.
        (TARGET_ASM_FILE_START_FILE_DIRECTIVE): Redefine to false.
        * config/alpha/alpha.h (PCC_BITFIELD_TYPE_MATTERS): Undefine
        before define.
        (ASM_DECLARE_FUNCTION_NAME): Ditto.
        (ASM_DECLARE_FUNCTION_SIZE): Ditto.
        (ASM_GENERATE_INTERNAL_LABEL): Ditto.
        (ASM_OUTPUT_SKIP): Ditto.
        (READONLY_DATA_SECTION_ASM_OP): Remove.
        (USER_LABEL_PREFIX): Remove.
        (ASM_OUTPUT_ASCII): Remove.
        (ASM_OUTPUT_CASE_LABEL): Remove.
        (NO_DOLLAR_IN_LABEL): Undefine.

2012-03-22  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52459
        * tree-ssa-pre.c (inhibit_phi_insertion): Do not inhibit
        PHI insertion for calls.

2012-03-21  Steven Bosscher  <steven@gcc.gnu.org>

        * cse.c (invalidate_from_sets_and_clobbers, try_back_substitute_reg,
        find_sets_in_insn, canonicalize_insn): Split out from ...
        (cse_insn): ... here.
        (invalidate_from_clobbers): Take an insn instead of the pattern.

2012-03-21  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/52479
        * config/sh/sh-protos.h (sh_fsca_df2int): Remove.
        * config/sh/sh.c (sh_fsca_df2int_rtx, sh_fsca_df2int): Remove.
        * config/sh/sh.md (sindf2, cosdf2): Remove.

2012-03-21  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/52642
        * config/sh/sh.c (sh_expand_prologue): Emit blockage at the end of
        prologue for unwinder and profiler.

2012-03-21  Andreas Tobler  <andreast@fgznet.ch>

        * configure.ac (HAVE_LD_NO_DOT_SYMBOLS): Add powerpc64-*-freebsd*.
        Introduce emul_name to select the right linker emulation for
        powerpc64-*-freebsd*.
        * configure: Regenerate.
        * config.gcc: Add bits to support powerpc64-*-freebsd*.
        * config/rs6000/freebsd.h (POWERPC_FREEBSD): Define.
        * config/rs6000/freebsd64.h: New file.
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Use
        POWERPC_FREEBSD.
        (rs6000_savres_strategy): Likewise.
        (rs6000_savres_routine_name): Likewise.
        (rs6000_elf_file_end): Likewise.
        * config/rs6000/t-freebsd64: New file.
        * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Set the
        rs6000_current_abi for 64-bit FreeBSD to ABI_AIX.

        * config/rs6000/freebsd64.h: Remove duplicated entries from last
        commit.
        * config/rs6000/t-freebsd64: Likewise.

2012-03-21  Georg-Johann Lay  <avr@gjlay.de>

        PR rtl-optimization/52543
        PR target/52461
        * config/avr/avr-protos.h (avr_load_lpm): New prototype.
        * config/avr/avr.c (avr_mode_dependent_address_p): New function.
        (TARGET_MODE_DEPENDENT_ADDRESS_P): New define.
        (avr_load_libgcc_p): Restrict to __flash loads.
        (avr_out_lpm): Only handle 1-byte loads from __flash.
        (avr_load_lpm): New function.
        (avr_find_unused_d_reg): Remove.
        (avr_out_lpm_no_lpmx): Remove.
        (adjust_insn_length): Handle ADJUST_LEN_LOAD_LPM.
        * config/avr/avr.md (unspec): Add UNSPEC_LPM.
        (load_<mode>_libgcc): Use UNSPEC_LPM instead of MEM.
        (load_<mode>, load_<mode>_clobber): New insns.
        (mov<mode>): For multi-byte move from non-generic
        16-bit address spaces: Expand to load_<mode> resp.
        load_<mode>_clobber.
        (load<mode>_libgcc): Remove expander.
        (split-lpmx): Remove split.

2012-03-21  Richard Earnshaw  <rearnsha@arm.com>

        * neon.md (neon_vget_lanev2di): Use gen_lowpart and gen_highpart.
        * config/arm/neon.ml (Fixed_return_reg): Renamed to fixed_vector_reg.
        All callers changed.
        (Fixed_core_reg): New feature.
        (Vget_lane [sizes S64 and U64]): Add Fixed_core_reg.  Allow fmrrd in
        disassembly.
        * neon-testgen.ml: Handle Fixed_core_reg.

2012-03-21  Andrew Stubbs  <ams@codesourcery.com>

        * config/arm/arm.c (thumb2_reorg): Add complete support
        for 16-bit instructions.
        * config/arm/thumb2.md: Delete obsolete flag-clobbering peepholes.

2012-03-21  Richard Guenther  <rguenther@suse.de>

        PR tree-optimizer/52636
        * tree-vect-slp.c (vect_get_constant_vectors): Convert constants
        to the appropriate type.

2012-03-21  Richard Guenther  <rguenther@suse.de>

        * Makefile.in (cfgexpand.o): Add $(REGS_H) and $(INTEGRATE_H)
        dependencies.
        * cfgexpand.c (gimple_expand_cfg): Fold in pass_init_function,
        pass_jump, pass_initial_value_sets and pass_unshare_all_rtl.
        * passes.c (init_optimization_passes): Remove pass_init_function,
        pass_jump, pass_initial_value_sets and pass_unshare_all_rtl.
        * tree-pass.h (pass_init_function): Remove.
        (pass_jump): Remove.
        (pass_initial_value_sets): Remove.
        (pass_unshare_all_rtl): Remove.
        * integrate.c (pass_initial_value_sets): Remove.
        * emit-rtl.c (pass_unshare_all_rtl): Remove.
        * tree.h (init_function_for_compilation): Remove.
        * function.c (init_function_for_compilation): Remove.
        (pass_init_function): Remove.
        * cfgcleanup.c (rest_of_handle_jump): Remove.
        (pass_jump): Remove.

2012-03-20  Jason Merrill  <jason@redhat.com>

        * tree-streamer-in.c (streamer_alloc_tree): Call
        ggc_alloc_zone_cleared_tree_node instead of
        ggc_alloc_zone_cleared_tree_node_stat.

2012-03-20  Jonathan Wakely  <jwakely.gcc@gmail.com>

        * doc/extend.texi (Template Instantiation): Remove anachronisms.

2012-03-20  Jakub Jelinek  <jakub@redhat.com>

        PR target/52607
        * config/i386/i386.c (expand_vec_perm_vperm2f128): New function.
        (ix86_expand_vec_perm_const_1): Call it.

        * config/i386/i386.c (vselect_insn): New variable.
        (init_vselect_insn): New function.
        (expand_vselect, expand_vselect_insn): Add testing_p argument.
        Call init_vselect_insn if vselect_insn is NULL.  Adjust
        PATTERN (vselect_insn), instead of creating a new insn each time,
        only emit a copy of it if not testing and recog has been successful.
        (expand_vec_perm_pshufb, expand_vec_perm_1,
        expand_vec_perm_pshuflw_pshufhw, expand_vec_perm_broadcast_1): Adjust
        callers.

        PR target/52607
        * config/i386/i386.md ("isa" attribute): Add avx2 and noavx2.
        ("enabled" attribute): Handle avx2 and noavx2 isas.
        * config/i386/sse.md (avx2_vec_dupv8sf_1, avx2_pbroadcast<mode>_1):
        New insns.
        (vec_dup<mode>): Add avx2 =x,x alternative.
        (vec_dup<mode> splitter): Don't split if TARGET_AVX2.
        (*avx_vperm_broadcast_<mode>): Don't split V4DFmode if TARGET_AVX2.
        For TARGET_AVX2, V8SFmode and elt == 0 split into vbroadcastss.
        * config/i386/i386.c (expand_vec_perm_pshufb): Emit also vpermps
        for V8SFmode.
        (expand_vec_perm_1): For broadcasts, use avx2_pbroadcast<mode>_1
        if possible, handle also V8SFmode.

2012-03-20  Richard Earnshaw  <rearnsha@arm.com>

        * arm/predicates.md (zero_operand, reg_or_zero_operand): New predicates.
        * arm/neon.md (neon_vceq<mode>, neon_vcge<mode>): Use
        reg_or_zero_operand predicate.
        (neon_vcle<mode>, neon_vclt<mode>): Use zero_operand predicate.

2012-03-20  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.c (ix86_decompose_address) <case ZERO_EXTEND>:
        If operand isn't UNSPEC, return 0.

2012-03-20  Richard Guenther  <rguenther@suse.de>

        * tree-pass.h (pass_rtl_eh): Remove.
        * except.c (gate_handle_eh): Likewise.
        (rest_of_handle_eh): Likewise.
        (pass_rtl_eh): Likewise.
        (finish_eh_generation): Export.
        * except.h (finish_eh_generation): Declare.
        * passes.c (init_optimization_passes): Remove pass_rtl_eh.
        * cfgexpand.c (gimple_expand_cfg): Call finish_eh_generation
        after expanding stack alignment.  Instead of compacting blocks
        call cleanup_cfg.

2012-03-20  Richard Guenther  <rguenther@suse.de>

        * stor-layout.c (finish_bitfield_representative): Fallback
        to conservative maximum size if the padding up to the next
        field cannot be computed as a constant.
        (finish_bitfield_layout): If we cannot compute the distance
        between the start of the bitfield representative and the
        bitfield member start a new representative.
        * expr.c (get_bit_range): The distance between the start of
        the bitfield representative and the bitfield member is zero
        if the field offsets are not constants.

2012-03-20  Tristan Gingold  <gingold@adacore.com>

        * tree.h (enum size_type_kind): Add stk_ prefix to constants,
        convert in lowercase.
        (sizetype_tab, sizetype, bitsizetype, ssizetype, sbitsizetype)
        (size_int, ssize_int, bitsize_int, sbitsize_int): Adjust.
        * stor-layout.c (sizetype_tab): Adjust.
        (initialize_sizetypes): Use SIZETYPE instead of SIZE_TYPE.
        * tree-streamer.c (preload_common_nodes): Use stk_type_kind_last
        instead of type_kind_last.
        * tree-scalar-evolution.c (interpret_rhs_expr): Use size_int
        instead of size_int_kind.
        * doc/tm.texi.in (Type Layout): Document SIZETYPE.
        * doc/tm.texi: Regenerate.
        * defaults.h (SIZETYPE): Provide a default value.
        * config/vms/vms.h (SIZE_TYPE): Define as "unsigned int".
        (SIZETYPE): Define.

2012-03-20  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh.md: Use braced string notation where applicable.

2012-03-19  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (allocate_stack): Simplify.

2012-03-19  Uros Bizjak  <ubizjak@gmail.com>

        * builtins.c (expand_builtin_cexpi): Use copy_addr_to_reg instead of
        copy_to_mode_reg (Pmode, ...).
        (expand_builtin_frame_address): Ditto.
        * expr.c (emit_block_move_via_libcall): Ditto.
        (set_storage_via_libcall): Ditto.

        * config/i386/i386.c (ix86_expand_movmem): Ditto.
        (ix86_expand_setmem): Ditto.
        (ix86_trampoline_init): DItto.
        * config/i386/i386.md (cmpstrnsi): Ditto.

2012-03-19  Sandra Loosemore  <sandra@codesourcery.com>

        * config/sh/sh.opt (madjust-unroll): Mark as ignored/obsolete.
        * config/sh/sh.h (TARGET_OPT_DEFAULT): Don't use MASK_ADJUST_UNROLL.
        * doc/invoke.texi (Option Summary): Remove -madjust-unroll.
        (SH Options): Likewise.

2012-03-19  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (get_thread_pointer): Add tp_mode argument.
        Generate ZERO_EXTEND in place if GET_MODE (tp) != tp_mode.
        (legitimize_tls_address) <TLS_MODEL_INITIAL_EXEC>: Always generate
        DImode UNSPEC_GOTNTPOFF references on TARGET_64BIT.
        (ix86_decompose_address): Allow zero extended UNSPEC_TP references.

        Revert:
        2012-03-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (TARGET_TLS_INDIRECT_SEG_REFS): New.
        * config/i386/i386.c (ix86_decompose_address): Use
        TARGET_TLS_INDIRECT_SEG_REFS to prevent %fs:(%reg) addresses.
        (legitimize_tls_address): Use TARGET_TLS_INDIRECT_SEG_REFS to load
        thread pointer to a register.

        Revert:
        2012-03-10  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (ix86_decompose_address): Disallow fs:(reg)
        if Pmode != word_mode.
        (legitimize_tls_address): Call gen_tls_initial_exec_x32 if
        Pmode == SImode for TARGET_X32.

        * config/i386/i386.md (UNSPEC_TLS_IE_X32): New.
        (tls_initial_exec_x32): Likewise.

2012-03-19  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/50751
        * config/sh/sh.h (CONST_OK_FOR_K04, CONST_OK_FOR_K12, DISP_ADDR_P,
        DISP_ADDR_OFFSET): New macros.
        * config/sh/sh.c (sh_address_cost): Add SH2A special case.
        (sh_legitimate_index_p): Allow QImode displacements for non-SH2A.
        (sh_legitimize_address): Add QImode displacement handling.
        (sh_cannot_change_mode_class): Disallow GENERAL_REGS for SFmode
        vector subregs.
        (sh_secondary_reload): Add QImode displacement handling.
        * config/sh/predicates.md (movsrc_no_disp_mem_operand): New predicate.
        * config/sh/constraints.md (K04, Snd, Sdd): New constraints.
        * config/sh/sh.md (extendqisi2): Remove constraints from expander.
        (*extendqisi2_compact): Rename to *extendqisi2_compact_reg, restrict
        to register operands only.
        (*extendqisi2_compact_mem_disp, *extendqisi2_compact_snd): New insns.
        (extendqihi2): Change insn to expander.
        (*extendqihi2_compact_reg): New insn.
        (movqi_i, movqi): Replace with ...
        (movqi, *movqi_reg_reg, *movqi_store_mem_disp12,
        *movqi_load_mem_disp, *movqi_load_mem_disp): ... these.
        Add new peepholes for QImode displacement addressing.

2012-03-19  Paolo Carlini  <paolo.carlini@oracle.com>

        PR c++/14710
        * doc/invoke.texi: Document -Wuseless-cast.

2012-03-19  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.def (REALPART_EXPR, IMAGPART_EXPR, VIEW_CONVERT_EXPR): Move.
        * tree.h (handled_component_p): Reorder cases.
        * dwarf2out.c (loc_list_for_address_of_addr_expr_of_indirect_ref): Do
        not initialize unsignedp.
        (loc_list_from_tree): Likewise.
        (fortran_common): Likewise.
        * simplify-rtx.c (delegitimize_mem_from_attrs): Likewise.

2012-03-19  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_expand_prologue) <CM_LARGE_PIC>: Use Pmode
        mode consistently.  Use ix86_gen_add3.  Assert that Pmode == DImode.
        (ix86_expand_split_stack_prologue): Use ix86_gen_add3.
        (ix86_split_long_move): Ditto.
        (legitimize_tls_address): Use ix86_gen_sub3.
        (construct_plt_address): Assert that Pmode == DImode.

2012-03-18  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md: Remove empty predicates and/or constraints.
        * config/i386/sync.md: Ditto.
        * config/i386/sse.md: Ditto.
        * config/i386/mmx.md: Ditto.
        * config/i386/pentium.md: Ditto.
        * config/i386/athlon.md: Ditto.

2012-03-16  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52603
        * tree-vect-data-refs.c (vect_can_force_dr_alignment_p): Clarify
        comment.

        Revert
        2012-03-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52571
        * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Move
        flag_section_anchors check ...
        (vect_can_force_dr_alignment_p): ... here.

2012-03-16  Martin Jambor  <mjambor@suse.cz>

        * expr.c (expand_expr_real_1): Handle misaligned scalar reads from
        memory through MEM_REFs by calling extract_bit_field.

2012-03-16  Richard Guenther  <rguenther@suse.de>

        * fold-const.c (native_interpret_expr): Also support POINTER_TYPE
        and REFERENCE_TYPE interpretations.
        (can_native_interpret_type_p): New function.
        (fold_ternary_loc): Use native encode/interpret to fold
        BIT_FIELD_REFs of constants.

2012-03-16  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52584
        * fold-const.c (fold_ternary_loc): Fold vector typed BIT_FIELD_REFs
        of vector constants and constructors.

2012-03-16  Richard Guenther  <rguenther@suse.de>

        * tree-vect-stmts.c (vect_get_vec_def_for_operand): Use
        VIEW_CONVERT_EXPR to convert constants.
        (vect_is_simple_use): Treat all constants as vec_constant_def.

2012-03-16  Richard Guenther  <rguenther@suse.de>
            Kai Tietz  <ktietz@redhat.com>

        PR middle-end/48814
        * gimplify.c (gimplify_self_mod_expr): Evaluate postfix
        side-effects completely in the pre-queue and use a temporary
        for the result.

2012-03-16  Richard Guenther  <rguenther@suse.de>

        * stor-layout.c (finish_bitfield_representative): Fall back
        to the conservative maximum size if we cannot compute the
        size of the tail padding.

2012-03-16  Tristan Gingold  <gingold@adacore.com>

        * config/vms/vms.h (TARGET_OS_CPP_BUILTINS): Define
        __CRTL_VER and __VMS_VER.
        * config/vms/vms-protos.h: Declare vms_c_get_crtl_ver
        and vms_c_get_vms_ver.
        * config/vms/vms-c.c (vms_c_get_crtl_ver, vms_c_get_vms_ver): New
        functions.
        * config/alpha/vms.h (VMS_DEFAULT_CRTL_VER)
        (VMS_DEFAULT_VMS_VER): Define.
        * config/ia64/vms.h (VMS_DEFAULT_CRTL_VER)
        (VMS_DEFAULT_VMS_VER): Define.

2012-03-16  Richard Guenther  <rguenther@suse.de>

        * tree-vect-loop.c (get_initial_def_for_induction): Use
        build_constructor directly.
        * tree-vect-stmts.c (vect_get_vec_def_for_operand): Use
        build_vector_from_val.
        * tree.c (build_vector_from_val): Avoid creating a constructor
        first when we want a constant vector.

2012-03-16  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * doc/install.texi (Specific, *-*-solaris2*): Improve wording.

2012-03-16  Richard Guenther  <rguenther@suse.de>

        * tree.h (TREE_VECTOR_CST_ELTS): Remove.
        (VECTOR_CST_NELTS, VECTOR_CST_ELTS, VECTOR_CST_ELT): New defines.
        (struct tree_vector): Remove elements member, add variable size
        elts array member.
        (build_vector_stat): Declare.
        (build_vector): Define in terms of build_vector_stat.
        * tree.c (build_vector): Rename to ...
        (build_vector_stat): ... this.  Take array of trees as parameter.
        (build_vector_from_ctor): Adjust.
        (integer_zerop, integer_onep, integer_all_onesp, iterative_hash_expr,
        initializer_zerop): Adjust.
        * cfgexpand.c (expand_debug_expr): Likewise.
        * expr.c (categorize_ctor_elements_1, expand_expr_real_1,
        const_vector_from_tree): Likewise.
        * fold-const.c (const_binop, operand_equal_p, native_encode_vector,
        native_interpret_vector, fold_unary_loc, vec_cst_ctor_to_array,
        fold_vec_perm, fold_binary_loc, fold_ternary_loc): Likewise.
        * tree-streamer-in.c (streamer_alloc_tree): Handle TS_VECTOR.
        (lto_input_ts_vector_tree_pointers): Adjust.
        * tree-streamer-out.c (streamer_write_tree_header): Handle TS_VECTOR.
        (write_ts_vector_tree_pointers): Adjust.
        * varasm.c (const_hash_1, compare_constant, copy_constant,
        output_constant): Adjust.
        * gimple-fold.c (gimple_fold_stmt_to_constant_1): Adjust.
        * print-tree.c (print_node): Adjust.
        * tree-pretty-print.c (dump_generic_node): Adjust.
        * tree-vect-generic.c (uniform_vector_p, vector_element,
        lower_vec_perm): Adjust.
        * tree-vect-loop.c (get_initial_def_for_reduction): Adjust.
        * tree-vect-slp.c (vect_get_constant_vectors,
        vect_transform_slp_perm_load): Adjust.
        * tree-vect-stmts.c (vect_gen_perm_mask): Adjust.
        * expmed.c (make_tree): Adjust.
        * config/i386/i386.c (ix86_expand_builtin): Adjust.
        * config/sparc/sparc.c (sparc_handle_vis_mul8x16): Adjust interface
        and implementation.
        (sparc_fold_builtin): Adjust.

2012-03-16  Tristan Gingold  <gingold@adacore.com>

        * config.gcc (*-*-*vms*): Define use_gcc_stdint and tm_file.
        * config/vms/vms-stdint.h: New file.

2012-03-16  Tristan Gingold  <gingold@adacore.com>

        * config.host (alpha64-dec-*vms*, alpha*-dec-*vms*)
        (ia64-hp-*vms*): Replaced by ...
        (*-*-*vms*): ... This new entry.

2012-03-15  Jakub Jelinek  <jakub@redhat.com>

        PR target/52568
        * config/i386/i386.c (expand_vec_perm_vperm2f128_vblend): New function.
        (ix86_expand_vec_perm_const_1): Use it.

        PR target/52568
        * config/i386/sse.md (UNSPEC_VPERMDF): Remove.
        (avx2_permv4df): Remove.
        (avx2_permv4di): Macroize into...
        (avx2_perm<mode>): ... this using VI8F_256 iterator.
        (avx2_permv4di_1): Macroize into...
        (avx2_perm<mode>_1): ... this using VI8F_256 iterator.

2012-03-15  Ulrich Weigand  <ulrich.weigand@linaro.org>

        * combine.c (apply_distributive_law): Do not distribute SUBREG.

2012-03-15  Ira Rosen  <irar@il.ibm.com>
            Ulrich Weigand  <ulrich.weigand@linaro.org>

        * tree-vect-patterns.c (widened_name_p): Rename to ...
        (type_conversion_p): ... this.  Add new argument to determine
        if it's a promotion or demotion operation.  Check for
        CONVERT_EXPR_CODE_P instead of NOP_EXPR.
        (vect_recog_dot_prod_pattern): Call type_conversion_p instead
        widened_name_p.
        (vect_recog_widen_mult_pattern, vect_recog_widen_sum_pattern,
        vect_operation_fits_smaller_type, vect_recog_widen_shift_pattern):
        Likewise.
        (vect_recog_mixed_size_cond_pattern): Likewise and allow
        non-constant then and else clauses.

2012-03-15  Ira Rosen  <irar@il.ibm.com>
            Ulrich Weigand  <ulrich.weigand@linaro.org>

        * tree-vectorizer.h (vect_pattern_recog): Add new argument.
        * tree-vect-loop.c (vect_analyze_loop_2): Update call to
        vect_pattern_recog.
        * tree-vect-patterns.c (widened_name_p): Pass basic block
        info to vect_is_simple_use.
        (vect_recog_dot_prod_pattern): Fail for basic blocks.
        (vect_recog_widen_sum_pattern): Likewise.
        (vect_handle_widen_op_by_const): Support basic blocks.
        (vect_operation_fits_smaller_type,
        vect_recog_over_widening_pattern): Likewise.
        (vect_recog_vector_vector_shift_pattern): Support basic blocks.
        Update call to vect_is_simple_use.
        (vect_recog_mixed_size_cond_pattern): Support basic blocks.
        Add printing.
        (check_bool_pattern): Add an argument, update call to
        vect_is_simple_use and the recursive calls.
        (vect_recog_bool_pattern): Update relevant function calls.
        Add printing.
        (vect_mark_pattern_stmts): Update calls to new_stmt_vec_info.
        (vect_pattern_recog_1): Check for reduction only in loops.
        (vect_pattern_recog): Add new argument.  Support basic blocks.
        * tree-vect-stmts.c (vectorizable_conversion): Pass basic block
        info to vect_is_simple_use_1.
        * tree-vect-slp.c (vect_get_and_check_slp_defs): Support basic blocks.
        (vect_slp_analyze_bb_1): Call vect_pattern_recog.

2012-03-15  Jakub Jelinek  <jakub@redhat.com>
            Andrew Pinski  <apinski@cavium.com>

        PR middle-end/52592
        * builtins.c (expand_builtin_int_roundingfn_2): If expanding
        BUILT_IN_IR{INT,OUND}* using optab fails, emit lr{int,ound}*
        calls instead of __builtin_ir{int,ound}*.

2012-03-15  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

        * doc/sourcebuild.texi (cleanup-modules, keep-modules): Update
        documentation.

2012-03-15  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        * config.gcc (target_type_format_char): New. Document it. Set it for
        arm*-*-* .
        * configure.ac (gnu_unique_option): Use target_type_format_char
        in test.  Comment rationale.
        * configure: Regenerate .

2012-03-15  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/52267
        * tree-vrp.c (masked_increment): New function.
        (register_edge_assert_for_2): Derive ASSERT_EXPRs
        from (X & CST1) cmp CST2 tests.

2012-03-15  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52580
        * tree-data-ref.c (subscript_dependence_tester_1): Check
        all dimensions for non-conflicting access functions.

2012-03-15  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR c++/44783
        * doc/invoke.texi [C++ Language Options]: Document
        -ftemplate-backtrace-limit.

2012-03-15  Tristan Gingold  <gingold@adacore.com>

        * c-parser.c (c_parser_parameter_declaration): Handle #pragma
        before a parameter.

2012-03-15  Tristan Gingold  <gingold@adacore.com>

        * dwarf2out.c (gen_subprogram_die): Require dwarf unwinding to
        use DW_OP_call_frame_cfa.

2012-03-14  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/50797
        * config/i386/i386-opts.h (pmode): New.

        * config/i386/i386.c (ix86_option_override_internal): Properly
        check and set ix86_pmode.

        * config/i386/i386.h (Pmode): Check ix86_pmode instead of TARGET_64BIT.

        * config/i386/i386.opt (maddress-mode=): New.

        * doc/invoke.texi: Document -maddress-mode=short|long for x86.

2012-03-14  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * dwarf2cfi.c (def_cfa_0): Remove MIPS_DEBUGGING_INFO handling.
        (dwarf2out_do_cfi_asm): Likewise.
        * dwarf2out.c (output_call_frame_info): Remove MIPS_DEBUGGING_INFO
        handling.
        (add_data_member_location_attribute): Likewise.
        (gen_array_type_die): Likewise.
        (gen_subprogram_die): Likewise.
        (gen_producer_string): Likewise.
        * sdbout.c (sdbout_begin_prologue): Declare unconditionally.
        Remove MIPS_DEBUGGING_INFO handling.
        (sdb_debug_hooks): Likewise.
        (sdbout_begin_block): Likewise.
        (sdbout_end_block): Likewise.
        (sdbout_begin_prologue): Likewise.
        (sdbout_start_source_file): Likewise.
        (sdbout_end_source_file): Likewise.
        (sdbout_init): Likewise.
        * system.h (MIPS_DEBUGGING_INFO): Poison.

2012-03-14  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/alpha/alpha.c [HAVE_STAMP_H]: Remove.
        (alpha_file_start) [MS_STAMP]: Remove.

        * config/alpha/elf.h (TARGET_GAS): Remove.
        * config/alpha/freebsd.h (TARGET_DEFAULT): Remove.
        * config/alpha/linux.h (TARGET_DEFAULT): Remove.
        * config/alpha/netbsd.h (TARGET_DEFAULT): Remove.
        * config/alpha/vms.h (TARGET_DEFAULT): Remove.
        * config.gcc (alpha*-*-linux*): Remove target_cpu_default.
        (alpha*-*-freebsd*): Likewise.
        (alpha*-*-netbsd*): Likewise.
        (alpha*-*-openbsd*): Likewise.
        (alpha*-*-*): Remove target_cpu_default2.
        * config/alpha/alpha.c (alpha_output_filename): Remove !TARGET_GAS
        handling.
        * config/alpha/alpha.h (TARGET_AS_CAN_SUBTRACT_LABELS): Remove.
        (TARGET_AS_SLASH_BEFORE_SUFFIX): Remove.
        * config/alpha/alpha.c (print_operand): Always assume
        TARGET_AS_SLASH_BEFORE_SUFFIX.
        * config/alpha/alpha.md ("*builtin_setjmp_receiver_er_sl_1"):
        Remove TARGET_AS_CAN_SUBTRACT_LABELS.
        ("*builtin_setjmp_receiver_er_1"): Remove.
        * config/alpha/alpha.opt (malpha-as): Remove.
        (mgas): Ignore.
        * doc/invoke.texi (Option Summary, DEC Alpha Options): Remove
        -malpha-as, -mgas.
        Remove DEC Unix reference.

        * config/alpha/alpha.h (OBJECT_FORMAT_COFF): Remove.
        (EXTENDED_COFF): Remove.
        * config/alpha/elf.h (OBJECT_FORMAT_COFF): Don't undef.
        (EXTENDED_COFF): Don't undef.
        * config/alpha/alpha.c (alpha_file_start): Always assume
        OBJECT_FORMAT_ELF.
        Don't set targetm.asm_file_start_file_directive.
        [!OBJECT_FORMAT_ELF]: Remove.
        (TARGET_ASM_FILE_START_FILE_DIRECTIVE): Remove.

        * config/alpha/alpha.h (SDB_DEBUGGING_INFO): Remove.
        (DBX_DEBUGGING_INFO): Remove.
        (MIPS_DEBUGGING_INFO): Remove.
        (PREFERRED_DEBUGGING_TYPE): Remove.
        (DBX_OUTPUT_SOURCE_LINE): Remove.
        (SDB_OUTPUT_SOURCE_LINE): Remove.
        (DBX_CONTIN_LENGTH): Remove.
        (NO_DBX_FUNCTION_END): Remove.
        (ASM_STABS_OP): Remove.
        (ASM_STABN_OP): Remove.
        (ASM_STABD_OP): Remove.
        (SDB_ALLOW_FORWARD_REFERENCES): Remove.
        (SDB_ALLOW_UNKNOWN_REFERENCES): Remove.
        (PUT_SDB_DEF): Remove.
        (PUT_SDB_PLAIN_DEF): Remove.
        (PUT_SDB_TYPE): Remove.
        (sdb_label_count): Remove.
        (PUT_SDB_BLOCK_START): Remove.
        (PUT_SDB_BLOCK_END): Remove.
        (PUT_SDB_FUNCTION_START): Remove.
        (PUT_SDB_FUNCTION_END): Remove.
        (PUT_SDB_EPILOGUE_END): Remove.
        * config/alpha/elf.h (SDB_DEBUGGING_INFO): Don't undef.
        (MIPS_DEBUGGING_INFO): Don't undef.
        (DBX_DEBUGGING_INFO): Don't undef.
        * config/alpha/vms.h (SDB_DEBUGGING_INFO): Don't undef.
        (MIPS_DEBUGGING_INFO): Don't undef.
        (DBX_DEBUGGING_INFO): Don't undef.
        * config/alpha/freebsd.h (DBX_CONTIN_CHAR): Remove.
        * config/alpha/alpha.c (alpha_option_override): Remove SDB_DEBUG
        handling.
        (alpha_start_function): Likewise.
        (sdb_label_count): Remove.
        (alpha_output_filename): Remove DBX_DEBUG handling.
        (alpha_file_start): Likewise.

2012-03-14  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config.gcc (enable_obsolete): Remove *-*-solaris2.8*.
        (*-*-solaris2.[0-8], *-*-solaris2.[0-8].*): Mark unsupported.
        (i[34567]86-*-solaris2*, x86_64-*-solaris2.1[0-9]*): Remove
        Solaris 8 support.
        * configure.ac (gcc_cv_ld_hidden): Remove *-*-solaris2.8*.
        (ld_tls_support): Remove Solaris 8 references.
        (lwp_dir, lwp_spec): Remove support for alternate thread library.
        * acinclude.m4 (gcc_cv_initfini_array): Remove *-*-solaris2.* tests.
        * configure: Regenerate.
        * config.in: Regenerate.

        * config/sol2.h (LINK_SPEC): Remove LIB_THREAD_LDFLAGS_SPEC.
        * config/i386/sol2.h: Remove Solaris 8 references.

        * doc/install.texi (Specific, i?86-*-solaris2.[89]): Rename to ...
        (i?86-*-solaris2.9): ... this.
        Remove Solaris 8 references.
        (Specific, *-*-solaris2*): Document Solaris 8 removal.
        Remove Solaris 8 references.

2012-03-14  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config.gcc (enable_obsolete): Remove mips-sgi-irix6.5.
        (mips-sgi-irix6.5*): Remove.
        * config.host (mips-sgi-irix*): Remove.
        * configure.ac (enable_fixed_point): Remove mips*-sgi-irix*.
        (set_have_as_tls): Remove *-*-irix6*.
        (gcc_cv_ld_static_dynamic): Remove mips-sgi-irix6*.
        * configure: Regenerate.

        * config/mips/iris6.h: Remove.
        * config/mips/iris6.opt: Remove.
        * config/mips/t-irix6: Remove.

        * config/mips/mips.h (TARGET_GPWORD): Remove IRIX 6 N64 handling.
        (TARGET_IRIX6): Remove.
        (TARGET_CPU_CPP_BUILTINS): Remove IRIX 6 handling.
        Don't define LANGUAGE_C, _LANGUAGE_C for Objective-C.
        * config/mips/mips.c (mips_build_builtin_va_list): Remove IRIX 6
        handling.
        (mips_file_start): Likewise.
        * config/mips/mips-protos.h (irix_asm_output_align): Remove.

        * config/mips/driver-native.c [__sgi__]: Remove.
        (host_detect_local_cpu) [__sgi__]: Remove.

        * config/mips/gnu-user.h: Remove iris5.h reference.

        * config/mips/mips-modes.def: Remove IRIX 6 reference.
        * config/mips/gnu-user64.h (MIPS_TFMODE_FORMAT): Remove.
        * config/mips/mips.c (mips_option_override) [MIPS_TFMODE_FORMAT]:
        Remove.

        * gcc.c (main): Move asm_debug initialization ...
        (asm_debug): ... here.

        * ginclude/stddef.h (__STDDEF_H__): Don't define.

        * defaults.h (LINK_ELIMINATE_DUPLICATE_LDIRECTORIES): Remove.
        * system.h (LINK_ELIMINATE_DUPLICATE_LDIRECTORIES): Poison.
        * collect2.c [LINK_ELIMINATE_DUPLICATE_LDIRECTORIES]: Remove.
        (main) [LINK_ELIMINATE_DUPLICATE_LDIRECTORIES]: Remove.
        [LINK_ELIMINATE_DUPLICATE_LDIRECTORIES] (is_in_args): Remove.
        * doc/tm.texi.in (Driver, LINK_ELIMINATE_DUPLICATE_LDIRECTORIES):
        Remove.
        * doc/tm.texi: Regenerate.

        * doc/invoke.texi (Debugging Options, -gdwarf-<version>): Remove
        IRIX 6 reference.
        (MIPS Options, -march): Remove IRIX reference.
        * doc/install.texi (Binaries, SGI IRIX): Remove.
        (Specific, mips-sgi-irix6): Document IRIX 6.5 removal, remove rest
        of section.
        * doc/trouble.texi (Interoperation): Remove -lgl_s handling.

2012-03-14  Martin Jambor  <mjambor@suse.cz>

        * expr.c (expand_assignment): Use expand_expr with EXPAND_WRITE
        when expanding MEM_REFs, MEM_TARGET_REFs and handled_component bases.
        (expand_expr_real_1): Do not handle misalignment if modifier is
        EXPAND_WRITE.

2012-03-14  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52584
        * tree-vect-generic.c (type_for_widest_vector_mode): Take
        element type instead of mode, use build_vector_type_for_mode
        instead of the langhook, build a vector of proper signedness.
        (expand_vector_operations_1): Adjust.

2012-03-14  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52582
        * gimple-fold.c (canonicalize_constructor_val): Make sure we have
        a cgraph node for a FUNCTION_DECL that comes from a constructor.
        (gimple_get_virt_method_for_binfo): Likewise.

2012-03-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52571
        * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Move
        flag_section_anchors check ...
        (vect_can_force_dr_alignment_p): ... here.  Do not re-align
        DECL_COMMON variables.

2012-03-14  Richard Guenther  <rguenther@suse.de>

        * tree.h (DECL_BIT_FIELD_REPRESENTATIVE): New define.
        * stor-layout.c (start_bitfield_representative): New function.
        (finish_bitfield_representative): Likewise.
        (finish_bitfield_layout): Likewise.
        (finish_record_layout): Call finish_bitfield_layout.
        * tree.c (free_lang_data_in_decl): Only free DECL_QUALIFIER
        for QUAL_UNION_TYPE fields.
        * tree-streamer-in.c (lto_input_ts_field_decl_tree_pointers):
        Stream DECL_BIT_FIELD_REPRESENTATIVE.
        * tree-streamer-out.c (write_ts_field_decl_tree_pointers): Likewise.

        PR middle-end/52080
        PR middle-end/52097
        PR middle-end/48124
        * expr.c (get_bit_range): Unconditionally extract bitrange
        from DECL_BIT_FIELD_REPRESENTATIVE.
        (expand_assignment): Adjust call to get_bit_range.

2012-03-14  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52578
        * fold-const.c (fold_unary_loc): Fold (T1)(T2)x to (T1)x if
        the outermost conversion is a sign-change only.
        (fold_binary_loc): Disregard widening and sign-changing
        conversions when we determine if two variables are equal
        for reassociation.
        * tree-ssa-forwprop.c (combine_conversions): Fold (T1)(T2)x to
        (T1)x if the outermost conversion is a sign-change only.

2012-03-14  Uros Bizjak  <ubizjak@gmail.com>

        Revert:
        2012-03-14  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/predicates.md (constant_call_address_operand): Declare
        as special predicate.  Update all uses.

2012-03-13  Jakub Jelinek  <jakub@redhat.com>

        PR c/52577
        * c-parser.c (c_parser_postfix_expression)
        <case RID_BUILTIN_SHUFFLE>: Call mark_exp_read on argument values.

        * config/i386/smmintrin.h: Avoid /* within a comment.
        * config/i386/nmmintrin.h: Likewise.

2012-03-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (xbegin): Remove constraint from expander.

2012-03-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/predicates.md (constant_call_address_operand): Declare
        as special predicate.  Update all uses.
        * config/i386/i386.md: Remove mode from constant_call_address_operand
        predicates.
        * config/i386/i386.c (ix86_output_call_insn): Call
        constant_call_address_operand with VOIDmode.

2012-03-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_decompose_address): Handle subregs of
        AND zero extended address correctly.

2012-03-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/predicates.md (tls_symbolic_operand): Declare as
        special predicate.
        (tls_modbase_operand): Ditto.
        * config/i386/i386.md: Remove mode from tls_symbolic_operand and
        tls_modbase_operand predicates.

2012-03-13  Martin Jambor  <mjambor@suse.cz>

        * expr.c (expand_assignment): Handle misaligned scalar writes to
        memory through top-level MEM_REFs by calling store_bit_field.

2012-03-13  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52134
        * fold-const.c (fold_binary_loc): Fold (X * Y) & -(1 << CST) to X * Y
        if Y is a constant multiple of 1 << CST.

2012-03-13  Georg-Johann Lay  <avr@gjlay.de>

        PR target/52488
        * config/avr/avr.c (avr_prologue_setup_frame): Cut down stack
        offset (size) to a value the insns can deal with.
        (expand_epilogue): Ditto.

2012-03-13  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

        * config/arm/neon.ml (ops): Fixup expected instructions for
        unsigned vector compares.

2012-03-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_decompose_address): Prevent %fs:(%reg)
        addresses only when %reg is not in word mode.

2012-03-13  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/microblaze/microblaze.md: Fix typo.
        * tree-if-conv.c: Likewise.
        * tree-vect-patterns.c: Likewise.

2012-03-13  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config.gcc (extra_passes): Remove.
        * configure.ac (extra_passes): Don't substitute.
        * configure: Regenerate.
        * Makefile.in (EXTRA_PASSES): Remove.
        (GCC_PASSES): Remove $(EXTRA_PASSES).
        (MOSTLYCLEANFILES): Likewise.
        (native): Likewise.
        (install-common): Likewise.

2012-03-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (TARGET_TLS_INDIRECT_SEG_REFS): New.
        * config/i386/i386.c (ix86_decompose_address): Use
        TARGET_TLS_INDIRECT_SEG_REFS to prevent %fs:(%reg) addresses.
        (legitimize_tls_address): Use TARGET_TLS_INDIRECT_SEG_REFS to load
        thread pointer to a register.

2012-03-12  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.md (*tls_global_dynamic_64_<mode>): Remove :P
        on tls_symbolic_operand.
        (tls_global_dynamic_64_<mode>): Likewise.

2012-03-12  Georg-Johann Lay  <avr@gjlay.de>

        PR other/52545
        * output.h (SECTION_EXCLUDE, SECTION_MACH_DEP): Don't use
        SECTION_MACH_DEP reserved bits for SECTION_EXCLUDE.

2012-03-12  Georg-Johann Lay  <avr@gjlay.de>

        PR target/52499
        * config/avr/avr.c (avr_mode_code_base_reg_class): Change return
        type from reg_class_t to enum reg_class.
        * config/avr/avr-protos.h (avr_mode_code_base_reg_class): Ditto.

2012-03-12  Andrew Pinski  <apinski@cavium.com>

        * tree-ssa-phiopt.c (single_non_singleton_phi_for_edges): New function.
        (tree_ssa_phiopt_worker): Use single_non_singleton_phi_for_edges.
        (value_replacement): Likewise.
        (empty_block_p): Check also if the PHIs for the block are empty.

2012-03-12  Georg-Johann Lay  <avr@gjlay.de>

        PR target/52148
        * config/avr/avr.c (avr_out_movmem): Fix typo in output template
        for the case ADDR_SPACE_FLASH and AVR_HAVE_LPMX introduced in
        r184615 from 2012-02-28.

2012-03-12  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (ix86_gen_tls_global_dynamic_64): New.
        (ix86_gen_tls_local_dynamic_base_64): Likewise.
        (ix86_option_override_internal): Set ix86_gen_tls_global_dynamic_64
        and ix86_gen_tls_local_dynamic_base_64.
        (legitimize_tls_address): Use ix86_gen_tls_global_dynamic_64 and
        ix86_gen_tls_local_dynamic_base_64.

        * config/i386/i386.md (*tls_global_dynamic_64): Renamed to ...
        (*tls_global_dynamic_64_<mode>): This.
        (tls_global_dynamic_64): Renamed to ...
        (tls_global_dynamic_64_<mode>): This.
        (*tls_local_dynamic_base_64): Renamed to ...
        (*tls_local_dynamic_base_64_<mode>): This.
        (tls_local_dynamic_base_64): Renamed to ...
        (tls_local_dynamic_base_64_<mode>): This.

2012-03-12  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (ix86_option_override_internal): Properly
        set ix86_gen_leave and ix86_gen_monitor.  Check Pmode == DImode,
        instead of TARGET_64BIT, to set ix86_gen_add3, ix86_gen_sub3,
        ix86_gen_one_cmpl2, ix86_gen_andsp, ix86_gen_allocate_stack_worker,
        ix86_gen_adjust_stack_and_probe and ix86_gen_probe_stack_range.

        * config/i386/sse.md (sse3_monitor64): Renamed to ...
        (sse3_monitor64_<mode>): This.

2012-03-12  Tristan Gingold  <gingold@adacore.com>

        * config/ia64/ia64.c (ia64_function_arg_1): Move code around.
        (ia64_function_arg_advance): Ditto.

2012-03-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config.gcc (mips*-*-openbsd*): Remove.
        * config/mips/openbsd.h: Remove.
        * config/mips/sdb.h: Remove.

        * config/mips/mips.h (SDB_OUTPUT_SOURCE_LINE): Remove.
        * config/mips/mips.c (sdb_label_count): Remove.
        (mips_debugger_offset): Remove #if 0 code.
        (mips_output_function_prologue) [SDB_DEBUGGING_INFO]: Remove.
        * config/mips/sde.h (SDB_DEBUGGING_INFO): Don't undef.

2012-03-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * doc/install.texi (Specific, i?86-*-solaris2.[89]): Update
        binutils reference.
        (Specific, i?86-*-solaris2.10): Remove GCC 4.0 reference.
        Update binutils references.
        (Specific, *-*-solaris2*): Mention bundled GCC in Solaris 10 and 11.
        Update binutils reference.
        Update Sun as/GNU ld caveat.
        Document binutils largefile requirement for LTO plugin.
        Remove reference to alternate libpthread.

2012-03-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config.gcc (alpha*-dec-osf5.1*): Remove.
        * config.host (alpha*-dec-osf*): Remove.
        * configure.ac (*-*-osf*): Remove.
        (alpha*-dec-osf*): Remove.
        * configure: Regenerate.

        * config/alpha/host-osf.c, config/alpha/osf5.h, config/alpha/osf5.opt,
        config/alpha/va_list.h, config/alpha/x-osf: Remove.

        * config/alpha/alpha.h (TARGET_LD_BUGGY_LDGP): Remove.
        * config/alpha/alpha.c (struct machine_function): Update comment.
        (alpha_start_function): Remove Tru64 UNIX as handling for
        max_frame_size.
        * config/alpha/alpha.md ("exception_receiver"): Remove
        TARGET_LD_BUGGY_LDGP.
        ("*exception_receiver_2"): Likewise.
        * except.c (finish_eh_generation): Remove Tru64 reference.
        * ginclude/stdarg.h [_HIDDEN_VA_LIST]: Don't undef _VA_LIST.
        * system.h (TARGET_HANDLE_PRAGMA_EXTERN_PREFIX): Poison.
        * target.def (handle_pragma_extern_prefix): Remove.

        * Makefile.in (mips-tfile.o-warn): Remove.
        (ALL_HOST_BACKEND_OBJS): Remove mips-tfile.o, mips-tdump.o.
        (mips-tfile, mips-tfile.o, mips-tdump, mips-tdump.o): Remove.
        * mips-tdump.c, mips-tfile.c: Remove.

        * doc/extend.texi (Symbol-Renaming Pragmas): Remove #pragma
        extern_prefix.
        * doc/install.texi (Binaries): Remove Tru64 UNIX reference.
        (Specific, alpha*-dec-osf5.1): Note removal.
        * doc/tm.texi.in (Misc, TARGET_HANDLE_PRAGMA_EXTERN_PREFIX):
        Remove.
        * doc/tm.texi: Regenerate.
        * doc/trouble.texi (Cross-Compiler Problems): Remove.

2012-03-12  Richard Guenther  <rguenther@suse.de>

        * config/arm/arm.c (neon_dereference_pointer): Do not call
        covert during RTL expansion.

2012-03-12  Tristan Gingold  <gingold@adacore.com>

        * doc/invoke.texi (VMS Options): Merge Alpha/VMS and IA-64/VMS
        Options.  Mention -mpointer-size.

2012-03-12  Richard Guenther  <rguenther@suse.de>

        * config/alpha/alpha.c (alpha_gimplify_va_arg): Use
        build_nonstandard_integer_type.

2012-03-12  Richard Guenther  <rguenther@suse.de>

        * tree.c (signed_or_unsigned_type_for): Use
        build_nonstandard_integer_type.
        (signed_type_for): Adjust documentation.
        (unsigned_type_for): Likewise.
        * tree-pretty-print.c (dump_generic_node): Use standard names
        for non-standard integer types if available.

2012-03-12  Tristan Gingold  <gingold@adacore.com>

        * config/vms/vms.opt: Add vms-opts.h header.
        (mmalloc64): Use flag_vms_malloc64 flag instead of MALLOC64
        target mask.
        (-mvms-return-codes): Document.
        (-mpointer-size): New option.
        (vms_pointer_size): Add enumeration.
        * config/vms/vms-opts.h: New file.
        * config/vms/vms.h (TARGET_OS_CPP_BUILTINS): Define
        __INITIAL_POINTER_SIZE.
        (POINTER_SIZE, SIZE_TYPE, PTRDIFF_TYPE): Adjust definition.
        (C_COMMON_OVERRIDE_OPTIONS): Define.
        (DWARF2_ADDR_SIZE): Define.
        * config/vms/vms.c (vms_patch_builtins): Adjust condition.
        * config/vms/vms-protos.h (vms_c_common_override_options):
        New prototype.
        * config/vms/vms-c.c (vms_pragma_pointer_size): Ignore pragma
        if -mno-pointer-size.
        (vms_c_common_override_options): New function.
        * config/ia64/vms.h (TARGET_DEFAULT): Remove MASK_MALLOC64.
        * config/alpha/vms.h (TARGET_DEFAULT): Remove MASK_MALLOC64.
        (MALLOC_ABI_ALIGNMENT): Use flag_vms_malloc64
        and flag_vms_pointer_size.
        (MASK_RETURN_ADDR): Set according to flag_vms_pointer_size.
        * config.gcc (*-*-*vms*): Define xm_file.
        (alpha*-dec-*vms*): Do not define xm_file.
        (alpha64-dec-*vms*): Remove.
        (ia64-hp-*vms*): Do not define xm_file.  Simplify tm_file
        and tmake_file.

2012-03-12  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/51721
        * tree-vrp.c (register_edge_assert_for_2): Add asserts for unsvar
        if (int) unsvar cmp CST.

2012-03-12  Richard Guenther  <rguenther@suse.de>

        * tree-sra.c (create_access_replacement): Only rename the replacement
        if we can rewrite it into SSA form.  Properly mark register typed
        replacements that we cannot rewrite with TREE_ADDRESSABLE.
        * tree-cfg.c (verify_expr): Fix BIT_FIELD_REF verification
        for aggregate or BLKmode results.

2012-03-12  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/52533
        * tree-vrp.c (register_edge_assert_for_2): Use double_int
        type for mask, only handle shifts by non-zero in-range
        shift count, for LE_EXPR and GT_EXPR if new_val is
        maximum, don't add the assertion.

2012-02-12  Kirill Yukhin  <kirill.yukhin@intel.com>

        * doc/invoke.texi: Document -mrtm option.
        * common/config/i386/i386-common.c (OPTION_MASK_ISA_RTM_SET): New.
        (OPTION_MASK_ISA_RTM_UNSET): Ditto.
        (ix86_handle_option): Handle OPT_mrtm.
        * config.gcc (i[34567]86-*-*): Add rtmintrin.h and
        xtestintrin.h.
        (x86_64-*-*): Ditto.
        * i386-builtin-types.def (INT_FTYPE_VOID): New.
        * config/i386/i386-c.c (ix86_target_macros_internal): Define
        __RTM__ if needed.
        (ix86_target_string): Define -mrtm option.
        (PTA_RTM): New.
        (ix86_option_override_internal): Extend "corei7-avx" with RTM option.
        Handle new option.
        (ix86_valid_target_attribute_inner_p): Add OPT_mrtm.
        (ix86_builtins): Add IX86_BUILTIN_XBEGIN, IX86_BUILTIN_XEND,
        IX86_BUILTIN_XTEST.
        (bdesc_special_args): Ditto.
        (ix86_init_mmx_sse_builtins): Add IX86_BUILTIN_XABORT.
        (ix86_expand_special_args_builtin): Handle new built-in type.
        (ix86_expand_builtin): Handle XABORT instruction.
        * config/i386/i386.h (TARGET_RTM): New.
        * config/i386/i386.md (UNSPECV_XBEGIN): New.
        (UNSPECV_XEND): Ditto.
        (UNSPECV_XABORT): Ditto.
        (UNSPECV_XTEST): Ditto.
        (xbegin): Ditto.
        (xbegin_1): Ditto.
        (xend): Ditto.
        (xabort): Ditto
        (xtest): Ditto.
        (xtest_1): Ditto.
        * config/i386/i386.opt (mrtm): New.
        * config/i386/immintrin.h: Include rtmintrin.h and xtestintrin.h.
        * config/i386/rtmintrin.h: New header.
        * config/i386/xtestintrin.h: Ditto.

2012-03-12  Tristan Gingold  <gingold@adacore.com>

        * ginclude/stddef.h: Adjust previous patch.
        Use __VMS__ instead of VMS.

2012-03-12  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (setcc + movzbl to xor + setcc peephole2):
        Also convert sequences with CC setting arithmetic instruction.

2012-03-11  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi (Option Summary): Move -no-integrated-cpp
        from C Language Options to Preprocessor Options.
        (C Dialect Options): Move -no-integrated-cpp documentation
        from here...
        (Preprocessor Options): ...to here.  Rewrite the description
        so it makes more sense, and remove discussion of merging front ends.

2012-03-11  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (ix86_expand_movmem): Use word_mode for size
        needed for loop.
        (ix86_expand_setmem): Likewise.

2012-03-11  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_zero_extend_to_Pmode): Rewrite using
        convert_to_mode.

2012-03-11  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (ix86_trampoline_init): Use movl for 64bit if
        ptr_mode == SImode.  Replace DImode with Pmode or ptr_mode.

2012-03-11  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (x86_this_parameter): Replace DImode with Pmode.

2012-03-11  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.md (lwp_slwpcb): Check Pmode instead of
        TARGET_64BIT.

2012-03-11  H.J. Lu  <hongjiu.lu@intel.com>
            Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/predicates.md (call_insn_operand): Allow
        constant_call_address_operand in Pmode only.
        (sibcall_insn_operand): Ditto.
        * config/i386/i386.md (*call): Use W mode iterator instead of P mode.
        (*call_vzeroupper): Ditto.
        (*sibcall): Ditto.
        (*sibcall_vzeroupper): Ditto.
        (*call_value): Ditto.
        (*call_value_vzeroupper): Ditto.
        (*sibcall_value): Ditto.
        (*sibcall_value_vzeroupper): Ditto.
        (*indirect_jump): Ditto.
        (*tablejump_1): Ditto.
        (indirect_jump): Convert memory address to word mode for TARGET_X32.
        (tablejump): Ditto.
        * config/i386/i386.c (ix86_expand_call): Convert indirect operands
        to word mode.

2012-03-11  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/51244
        * config/sh/sh.md (movnegt): Expand into respective insns immediately.
        Use movrt_negc instead of negc pattern for non-SH2A.
        (*movnegt): Remove.
        (*movrt_negc, *negnegt, *movtt, *movt_qi): New insns and splits.

2012-03-10  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (ix86_decompose_address): Disallow fs:(reg)
        if Pmode != word_mode.
        (legitimize_tls_address): Call gen_tls_initial_exec_x32 if
        Pmode == SImode for TARGET_X32.

        * config/i386/i386.md (UNSPEC_TLS_IE_X32): New.
        (tls_initial_exec_x32): Likewise.

2012-03-10  Chung-Lin Tang  <cltang@codesourcery.com>

        PR rtl-optimization/52528
        * combine.c (can_combine_p): Add setting of subst_low_luid
        before call to expand_field_assignment().

2012-03-09  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi: Use correct names/markup for "GCC", "GDB", "ld",
        and related program names.

2012-03-09  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi: Use correct names for "DWARF", "stabs", and "ELF".

2012-03-09  Uros Bizjak  <ubizjak@gmail.com>

        PR target/52530
        * config/i386/i386.c (ix86_print_operand): Handle 'E' operand modifier.
        (ix86_print_operand_address): Handle UNSPEC_LEA_ADDR. Do not fallback
        to set code to 'q'.
        * config/i386/i386.md (UNSPEC_LEA_ADDR): New unspec.
        (*movdi_internal_rex64): Use %E operand modifier for lea.
        (*movsi_internal): Ditto.
        (*lea_1): Ditto.
        (*lea<mode>_2): Ditto.
        (*lea_{3,4,5,6}_zext): Ditto.
        (*tls_global_dynamic_32_gnu): Ditto.
        (*tls_global_dynamic_64): Ditto.
        (*tls_dynamic_gnu2_lea_32): Ditto.
        (*tls_dynamic_gnu2_lea_64): Ditto.
        (pro_epilogue_adjust_stack_<mode>_add): Ditto.

2012-03-09  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/linux64.h (OPTION_TARGET_CPU_DEFAULT): Do not
        redefine to be NULL if the current bit-size is different from the
        configured bit-size.

        * config/rs6000/rs6000.c (rs6000_option_override_internal): If the
        cpu is defaulted, use PROCESSOR_DEFAULT and PROCESSOR_DEFAULT64 to
        set the default tuning.  Add asserts to make sure the cpu and tune
        indexes are defined.  Fix tests for cpu/tune index to use >= 0 to
        test whether the index is set, instead of > 0.
        (rs6000_file_start): Do not reset the default cpu if the current
        bit-size is different from the configured bit-size.

2012-03-09  Tristan Gingold  <gingold@adacore.com>

        * config/vms/vms-crtlmap.map: Add comments.
        Add entries needed to build Ada RTS.

2012-03-09  Tristan Gingold  <gingold@adacore.com>

        * ginclude/stddef.h: Do not define __size_t on VMS.

2012-03-09  Tristan Gingold  <gingold@adacore.com>

        * c-tree.h (c_default_pointer_mode): New variable.
        * c-decl.c (c_default_pointer_mode): New variable.
        (c_build_pointer_type): New function.
        (grokdeclarator): Call c_build_pointer_type instead
        of build_pointer_type.

        * config/vms/vms-c.c: Include c-tree.h
        (saved_pointer_mode): New variable.
        (handle_pragma_pointer_size): New function.
        (vms_pragma_pointer_size, vms_pragma_required_pointer_size): Likewise.
        (vms_c_register_pragma): Register __pointer_size and
        __required_pointer_size pragmas.

2012-03-09  Tristan Gingold  <gingold@adacore.com>

        * config/vms/vms-c.c (vms_construct_include_filename): New function.
        (vms_c_register_includes): Reference it.

2012-03-09  Andrew Pinski  <apinski@cavium.com>

        PR middle-end/51988
        * tree-ssa-phiopt.c: Include tree-pretty-print.h for
        print_generic_expr.
        (tree_ssa_phiopt_worker): Go through all the PHIs for
        value_replacement instead of just the singleton one.
        (value_replacement): Change return type to int.  Return 0 instead of
        false.
        Allow the middle basic block to contain more than just the defining
        statement.
        Handle non empty middle basic blocks.
        * Makefile.in (tree-ssa-phiopt.o): Add tree-pretty-print.h.

2012-03-09  Jiangning Liu  <jiangning.liu@arm.com>

        * tree-scalar-evolution (interpret_rhs_expr): generate chrec for
        array reference and component reference.
        (analyze_scalar_evolution_for_address_of): New.

2012-03-08  Jie Zhang  <jzhang918@gmail.com>

        PR target/49862
        * config/bfin/bfin.c (hwloop_optimize): Fix unused variable warnings.
        (hwloop_pattern_reg): Fix set but not used warning.
        (bfin_reorg_loops): Remove unused parameter.
        (bfin_reorg): Update use of bfin_reorg_loops.

2012-03-08  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (setup_incoming_varargs_64): Use word_mode
        with integer parameters in registers.
        (gen_push): Push register in word_mode instead of Pmode.
        (ix86_emit_save_regs): Likewise.
        (ix86_emit_save_regs_using_mov): Save integer registers in word_mode.
        (gen_pop): Pop register in word_mode instead of Pmode.
        (ix86_emit_restore_regs_using_pop): Likewise.
        (ix86_expand_prologue): Replace Pmode with word_mode for push
        immediate.  Use ix86_gen_pro_epilogue_adjust_stack.  Save and
        restore RAX and R10 in word_mode.
        (ix86_emit_restore_regs_using_mov): Restore integer registers
        in word_mode.
        (ix86_expand_split_stack_prologue): Save R10_REG and restore in
        word_mode.
        (ix86_split_to_parts): Use word_mode with PUT_MODE for push.
        (ix86_split_long_move): Likewise.

        * config/i386/i386.md (W): New.
        (*push<mode>2_prologue): Replace :P with :W.
        (*pop<mode>1): Likewise.
        (*pop<mode>1_epilogue): Likewise.
        (push/pop peephole2): Use word_mode scratch registers.

2012-03-08  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/predicates.md (indirect_branch_operand): Simplify.

2012-03-08  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md (*addhi3, addhi3_clobber): Add "w" alternative
        for constants in [-63,63].

2012-03-08  Uros Bizjak  <ubizjak@gmail.com>

        PR target/52530
        Revert:
        2012-03-04  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (ix86_print_operand_address): Only handle
        zero-extended DImode addresses.

2012-03-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * configure.ac (gcc_cv_as_ix86_tlsldmplt): Add label.
        * configure: Regenerate.

2012-03-08  Georg-Johann Lay  <avr@gjlay.de>

        PR target/52496
        * config/avr/avr.c (avr_mem_clobber): New static function.
        (avr_expand_delay_cycles): Add memory clobber operand to
        delay_cycles_1, delay_cycles_2, delay_cycles_3, delay_cycles_4.
        * config/avr/avr.md (unspec): Add UNSPEC_MEMORY_BARRIER.
        (enable_interrupt, disable_interrupt): New expander.
        (nopv, sleep, wdr): New expanders.
        (delay_cycles_1): Add memory clobber.
        (delay_cycles_2): Add memory clobber.
        (delay_cycles_3): Add memory clobber.
        (delay_cycles_4): Add memory clobber.
        (cli_sei): New insn from former "enable_interrupt",
        "disable_interrupt" with memory clobber.
        (*wdt): New insn from former "wdt" with memory clobber.
        (*nopv): Similar, but for "nopv".
        (*sleep): Similar, but for "sleep".

2012-03-07  Oleg Endo  <olegendo@gcc.gnu.org>
            Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/52503
        * config/sh/sh.opt (msoft-atomic): Use Var instead of Mask.
        * config/sh/linux.h (TARGET_DEFAULT): Remove MASK_SOFT_ATOMIC.
        (SUBTARGET_OVERRIDE_OPTIONS): Define.

2012-03-07  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/predicates.md (x86_64_zext_general_operand): New.
        * config/i386/i386.md (*zero_extendsidi2_rex64): Change operand 1
        predicate to x86_64_zext_general_operand.  Accept "Z" constraint.

2012-03-07  Walter Lee  <walt@tilera.com>

        * config/tilegx/tilegx.c (tilegx_expand_prologue): Don't generate
        REG_CFA_* notes for the stack pointer.
        (tilegx_expand_epilogue): Restore stack pointer by adjusting it by
        EH_RETURN_STACKADJ_RTX.
        * config/tilepro/tilepro.c (tilepro_expand_prologue): Don't
        generate REG_CFA_* notes for the stack pointer.
        (tilepro_expand_epilogue): Restore stack pointer by adjusting it
        by EH_RETURN_STACKADJ_RTX.

2012-03-07  Georg-Johann Lay  <avr@gjlay.de>

        * doc/invoke.texi (AVR Built-in Macros): Correct condition for
        when __AVR_3_BYTE_PC__ is defined.

2012-03-07  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_print_operand_punct_valid_p): Add '^'.
        (ix86_print_operand): Handle '^'.
        * config/i386/i386.md (*strmovdi_rex_1): Macroize memory operands
        using P mode iterator.  Add %^ to asm template to conditionally emit
        addr32 prefix.
        (*rep_movdi_rex64): Ditto.
        (*strsetdi_rex_1): Ditto.
        (*rep_stosdi_rex64): Ditto.
        (*strmov{si,hi,qi}_1): Add %^ to asm template to
        conditionally emit addr32 prefix.
        (*rep_mov{si,qi}): Ditto.
        (*strset{si,hi,qi}): Ditto.
        (*rep_stos{si,qi}): Ditto.
        (*cmpstrnqi_nz_1): Ditto.
        (*cmpstrnqi_1): Ditto.
        (*strlenqi_1): Ditto.

2012-03-07  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (function_value_64): Return pointers in
        word_mode instead of Pmode.
        (ix86_promote_function_mode): Likewise.

2012-03-07  Richard Guenther  <rguenther@suse.de>

        * coverage.c (get_gcov_type): Use type_for_mode.
        (get_gcov_unsigned_t): Likewise.
        * expr.c (store_constructor): Use type_for_mode.
        (try_casesi): Likewise.
        * tree-ssa-loop-ivopts.c (add_standard_iv_candidates_for_size): Remove.
        (add_standard_iv_candidates): Use standard type trees.
        * dojump.c (do_jump): Remove dead code.

2012-03-07  Richard Guenther  <rguenther@suse.de>

        * c-typeck.c (pointer_diff): Use c_common_type_for_size.

2012-03-07  Richard Guenther  <rguenther@suse.de>

        * convert.c (strip_float_extensions): Move ...
        * tree.c (strip_float_extensions): ... here.

2012-03-07  Georg-Johann Lay  <avr@gjlay.de>

        PR target/52484
        * config/avr/avr.md (xload<mode>_A): Add R22... to register footprint.

2012-03-07  Richard Guenther  <rguenther@suse.de>

        * omp-low.c (extract_omp_for_data): Use signed_type_for.
        (expand_omp_for_generic): Likewise.
        (expand_omp_for_static_nochunk): Likewise.
        (expand_omp_for_static_chunk): Likewise.
        * tree-vect-stmts.c (vect_gen_perm_mask): Use type_for_mode.
        * tree-vect-slp.c (vect_transform_slp_perm_load): Likewise.
        * tree-vect-loop-manip.c (vect_gen_niters_for_prolog_loop):
        Use unsigned_type_for.
        (vect_create_cond_for_align_checks): Use signed_type_for.

2012-03-07  Andrey Belevantsev  <abel@ispras.ru>

        PR rtl-optimization/52203
        * sel-sched.c (estimate_insn_cost): New parameter pempty.  Adjust
        all callers to pass NULL except ...
        (reset_sched_cycles_in_current_ebb): ... here, save the value
        in new variable 'empty'.  Increase issue_rate only for
        non-empty insns.

2012-03-07  Ralf Corsépius  <ralf.corsepius@rtems.org>

        PR target/51417
        * Makefile.in: Let install-gcc-ar depend on installdirs,
        gcc-ar$(exeext), gcc-nm$(exeext), gcc-ranlib$(exeext).
        Don't double canonicalize if cross-compiling.

2012-03-07  Georg-Johann Lay  <avr@gjlay.de>

        PR target/52506
        * gcc/config/avr/avr.c (expand_epilogue): Fix order of restoration
        to: RAMPZ, RAMPY, RAMPX, RAMPD.
        (expand_prologue): Only clear RAMPZ if it has effect on RAM-read.

2012-03-07  Georg-Johann Lay  <avr@gjlay.de>

        PR target/52505
        * config/avr/avr.c (avr_out_xload): Don't read unintentionally
        from RAM.
        * config/avr/avr.md (xload_8): Adjust insn length.

2012-03-07  Georg-Johann Lay  <avr@gjlay.de>

        PR target/52461
        * gcc/config/avr/avr.c (avr_out_lpm): Clear RAMPZ after usage
        if RAMPZ affects reading from RAM.

2012-03-07  Richard Guenther  <rguenther@suse.de>

        PR pch/52518
        PR pch/38987
        * doc/invoke.texi (Precompiled Headers): Remove sentence that
        suggests you can include PCHs from inside another header.

2012-03-07  Richard Sandiford  <rdsandiford@googlemail.com>

        PR middle-end/52515
        * rtl.h (pc_rtx, cc0_rtx, ret_rtx, simple_return_rtx): Add GTY markers.

2012-03-07  Kai Tietz  <ktietz@redhat.com>

        * doc/invoke.texi (fwritable-relocated-rdata): Document
        new Cygwin/MinGW target option.
        * config/i386/winnt.c (i386_pe_unique_section): Ignore
        reloc if flag -fwritable-relocated-rdata is not set.
        (i386_pe_section_type_flags): Likewise.
        * config/i386/cygming.opt (fwritable-relocated-rdata):
        Add new flag variable flag_writable_rel_rdata.

2012-03-07  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-math-opts.c (convert_mult_to_widen): Check actual
        precision against gimple constraints.

2012-03-06  Richard Sandiford  <rdsandiford@googlemail.com>

        PR middle-end/52372
        * rtl.h (pc_rtx, ret_rtx, simple_return_rtx, cc0_rtx): Redefine as
        variables.
        (GR_PC, GR_CC0, GR_RETURN, GR_SIMPLE_RETURN): Delete.
        * emit-rtl.c (pc_rtx, ret_rtx, simple_return_rtx, cc0_rtx): New
        variables.
        (init_emit_regs): Move associated initialization to...
        (init_emit_once): ...here.

2012-03-06  Richard Henderson  <rth@redhat.com>

        * config/m68k/m68k.h (ISA_HAS_TAS): New.
        * config/m68k/sync.md (atomic_test_and_set): Use it.
        (atomic_test_and_set_1): Likewise.

2012-03-06  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/50310
        * config/rs6000/vector.md (vector_uneq<mode>): Add support for
        UNEQ, LTGT, ORDERED, and UNORDERED IEEE vector comparisons.
        (vector_ltgt<mode>): Likewise.
        (vector_ordered<mode>): Likewise.
        (vector_unordered<mode>): Likewise.
        * config/rs6000/rs6000.c (rs6000_emit_vector_compare_inner): Likewise.

2012-03-06  Aldy Hernandez  <aldyh@redhat.com>

        * trans-mem.c: New typedef for tm_region_p.
        Define vector types for tm_region_p.
        (tm_region_init): Replace region_worklist to a vector called
        bb_regions.

2012-03-06  Richard Guenther  <rguenther@suse.de>

        * fold-const.c (build_fold_addr_expr_with_type_loc): Fold
        MEM_REF with constant pointer operand.

2012-03-06  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52493
        * tree-ssa-alias.c (ptr_derefs_may_alias_p): Robustify.

2012-03-06  Tristan Gingold  <gingold@adacore.com>

        * config/vms/vms-c.c (vms_pragma_nomember_alignment): Handle octaword.
        (external_model_kind): Improve documentation.
        (vms_pragma_extern_model): Handle relaxed_redef.
        (vms_c_register_pragma): Allow expansion for nomember_alignment.

2012-03-06  Georg-Johann Lay  <avr@gjlay.de>

        * doc/invoke.texi (AVR Options): -mmcu=: Document the XMEGA cores.
        Explain RAMPD, RAMPX, RAMPDY, RAMPZ usage by avr-gcc.
        Some more notes on EIND usage and reorder EIND subsection.

2012-03-06  Tristan Gingold  <gingold@adacore.com>

        * config/vms/vms.c (VMS_CRTL_LDBL): Rename from VMS_CRTL_PRNTF.
        * config/vms/vms-crtlmap.map: Rename PRNTF to LDBL.

2012-03-06  Tristan Gingold  <gingold@adacore.com>

        * config/vms/t-vmsnative (version): Define.
        * config/vms/t-vms (STMP_FIXPROTO, STMP_FIXINC, version): Remove.

2012-03-06  Andrey Belevantsev  <abel@ispras.ru>

        PR rtl-optimization/52250
        * sel-sched-ir.c (maybe_tidy_empty_bb): Try harder to find a bb
        to put note list into.  Unconditionally call move_bb_info.
        (move_bb_info): Do not assert the blocks being in the same region,
        just drop the note list if they are not.

2012-03-06  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/51244
        * config/sh/sh.c (sh_expand_t_scc): Remove SH2A special case
        and use unified expansion logic.
        * config/sh/sh.md (xorsi3_movrt): Rename to movrt.  Move
        closer to the existing movt insn.
        (negc): Rename insn to *negc.  Add new expander.
        (movnegt): Use xor pattern for T bit negation.  Reserve helper
        constant for negc pattern.
        (*movnegt): New insn and splitter.

2012-03-05  Bernd Schmidt  <bernds@codesourcery.com>

        * c-typeck.c (pointer_diff): Check for POINTER_PLUS_EXPR, not
        PLUS_EXPR.

2012-03-05  Richard Henderson  <rth@redhat.com>

        * genemit.c (main): Include "target.h" in insn-emit.c.
        * Makefile.in (insn-emit.o): Depend on TARGET_H.
        * config/sh/sync.md (atomic_test_and_set): Reference
        targetm.atomic_test_and_set_trueval instead of
        TARGET_ATOMIC_TEST_AND_SET_TRUEVAL.

2012-03-05  Joern Rennecke  <joern.rennecke@embecosm.com>

        * config/epiphany/epiphany.c (epiphany_function_value_regno_p):
        Make static.

2012-03-05  Steven Bosscher  <steven@gcc.gnu.org>

        * langhooks.c (add_builtin_type): New function.
        * langhooks.h (add_builtin_type): Export it.
        * config/mep/mep.c (mep_init_builtins): Use it.
        * config/rs6000/rs6000.c (rs6000_init_builtins): Use it.

2012-03-05  Jakub Jelinek  <jakub@redhat.com>

        PR debug/51902
        * tree.h (BLOCK_SAME_RANGE): Define.
        * function.c (block_fragments_nreverse): Clear BLOCK_SAME_RANGE
        if BLOCK_FRAGMENT_CHAIN is non-NULL, but has it cleared.
        Also clear BLOCK_SAME_RANGE if fragment chain's supercontext fragment
        isn't equal to supercontext fragment's fragment chain.
        Adjust BLOCK_SUPERCONTEXT to point to supercontext fragment's
        fragment origin.
        (blocks_nreverse_all): Likewise.
        (reorder_blocks_1): Compute BLOCK_SAME_RANGE bits.  Set
        BLOCK_SUPERCONTEXT to supercontext fragment instead of
        supercontext fragment's fragment origin.
        * dwarf2out.c (add_high_low_attributes): If stmt has the same
        range as its parent (or parents thereof etc.), use the parent's
        DW_AT_ranges value instead of creating a new .debug_ranges range.

2012-03-05  Richard Henderson  <rth@redhat.com>

        PR tree-opt/52242
        Revert: 2011-11-26  Richard Henderson  <rth@redhat.com>
        * omp-low.c (expand_omp_atomic): Assume anything aligned to
        BIGGEST_ALIGNMENT is aligned.

2012-03-05  Richard Henderson  <rth@redhat.com>

        * config/sh/sh.h (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): Move...
        * config/sh/sh.c: ... here.

2012-03-05  Richard Henderson  <rth@redhat.com>

        PR target/52481
        * config/m68k/sync.md (atomic_test_and_set): Use expand_simple_unop
        instead of calling negqi2 directly.

2012-03-05  Aldy Hernandez  <aldyh@redhat.com>

        PR middle-end/52463
        * trans-mem.c (tm_region_init): Use last_basic_block.

2012-03-05  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh.h (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New hook.
        * config/sh/sync.md (atomic_test_and_set): New expander.
        (tasb, atomic_test_and_set_soft): New insns.
        * config/sh/sh.opt (menable-tas): New option.
        * doc/invoke.texi (SH Options): Document it.

2012-03-05  Richard Guenther  <rguenther@suse.de>

        * cfgloop.c (verify_loop_structure): Verify dominators before
        using them.
        * graphite-clast-to-gimple.c (graphite_verify): Do not verify
        dominators from here.
        * graphite-scop-detection.c (create_sese_edges): Likewise.
        * loop-doloop.c (doloop_optimize_loops): Likewise.
        * loop-init.c (loop_optimizer_init): Likewise.
        * loop-unroll.c (unroll_and_peel_loops): Likewise.
        * loop-unswitch.c (unswitch_loops): Likewise.
        * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Likewise.
        * tree-parloops.c (parallelize_loops): Likewise.  Verify
        only when checking is enabled.
        * tree-loop-distribution.c (tree_loop_distribution): Likewise.

2012-03-05  Bernd Schmidt  <bernds@codesourcery.com>

        * genautomata.c (parse_automata_opt): New static function.
        (initiate_automaton_gen): Remove all option handling code.  Remove
        argc argument.  All callers changed.
        (main): Call init_rtx_reader_args_cb with the new function as argument.

2012-03-05  Richard Guenther  <rguenther@suse.de>

        * cfgexpand.c (gimple_expand_cfg): Free dominator info.
        * tree-if-conv.c (combine_blocks): Free post-dominator info
        after breaking it.
        * tree-parloops.c (create_parallel_loop): Free and re-compute
        dominator info after breaking it.

2012-03-05  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52353
        * optabs.h (trapv_unoptab_p): New function.
        (trapv_binoptab_p): Likewise.
        * optabs.c (expand_binop): Use emit_libcall_block_1 with
        a proper equiv_may_trap argument.
        (expand_unop): Likewise.
        (emit_libcall_block_1): Take extra argument whether the
        instruction may trap.  Renamed from ...
        (emit_libcall_block): ... this.  New wrapper.

2012-03-05  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/51721
        * tree-vrp.c (register_edge_assert_for_2): If comparing
        lhs of right shift by constant with an integer constant,
        add ASSERT_EXPRs for the rhs1 of the right shift.

        * cfgrtl.c (cfg_layout_merge_blocks): Cleanup.

2012-03-05  Richard Guenther  <rguenther@suse.de>

        * tree.c (integer_zerop): Handle VECTOR_CSTs.
        (integer_onep): Likewise.
        (integer_all_onesp): Likewise.

2012-03-05  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md (*umaddqihi4.2): New insn-and-split.

2012-03-04  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (pro_epilogue_adjust_stack): Check Pmode
        instead of TARGET_64BIT.

2012-03-04  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (ix86_expand_prologue): Check Pmode to set
        adjust_stack_insn.

2012-03-04  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (ix86_print_operand_address): Only handle
        zero-extended DImode addresses.

2012-03-04  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_print_operand) <case '+'>: Declare
        taken and cputaken as bool.

2012-03-04  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/constraints.md (Ya): New internal constraint.
        * config/i386/i386.md (zero_extendsidi2): Remove expansion.
        (*zero_extendsidi2_rex64): Add x,x alternative.
        (*zero_extendsidi2): Ditto.  Add o,0 alternative.
        Remove flags reg clobber.  Adjust corresponding splits.
        (zero_extend<mode>si2): Macroize expander from zero_extendhisi2 and
        zero_extendqisi2 expanders using SWI12 mode iterator.
        (zero_extend<mode>si2_and): Macroize insn from
        zero_extendhisi2_and and zero_extendqisi2_and.  Merge corresponding
        splitters.
        (*zero_extend<mode>si2):  Macroize insn from
        *zero_extendhisi2_movzbl and *zero_extendqisi2_movzbl.
        (*zero_extend*2_movzbl_and): Remove insn patterns.
        (zero_extendqihi2_and): Merge corresponding splitter.
        (*zero_extendqihi2): Rename from *zero_extendqihi2_movzbl.
        (*zero_extend*2_movzbl_and): Remove insn patterns.
        (*anddi_1): Split TYPE_IMOVX instructions.
        (*andsi_1): Use Ya for alternative 2.  Split TYPE_IMOVX instructions.
        (*andhi_1): Ditto.
        (and->zext splitter): Add splitter pattern.
        (zero extend with andsi3 splitter): Adjust zero_extend pattern.

2012-03-04  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi (C++ Dialect Options): Minor copy-edits to
        x86-specific text.
        (Debugging Options): Likewise.
        (Optimize Options): Likewise.
        (i386 and x86-64 Options): Discuss -march before -mtune, consistently
        with other architectures.  Use official processor names with correct
        spelling/capitalization.  Fix formatting and grammar issues.
        (i386 and x86-64 Windows Options): Similar cleanup here.

2012-03-03  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.md (abssi2): Add TARGET_SH1 condition.

2012-03-03  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.c (sh_dwarf_register_span): Don't apply
        DBX_REGISTER_NUMBER.

2012-03-03  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.c (shiftcosts): Return MAX_COST when the first
        operand is CONST_INT.  Take COSTS_N_INSNS into account.
        (sh_rtx_costs): Don't apply COSTS_N_INSNS to the return value
        of shiftcosts.

2012-03-02  Richard Henderson  <rth@redhat.com>

        * optabs.c (expand_atomic_test_and_set): Honor
        atomic_test_and_set_trueval even when atomic_test_and_set
        optab is not in use.

2012-03-02  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/48596
        PR target/48806
        * config/sh/sh.c (sh_register_move_cost): Increase cost between
        GENERAL_REGS and FP_REGS for SImode.

2012-03-02  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/49486
        * config/sh/sh.md (negdi2): Add TARGET_SH1 condition.
        (absdi2): New expander.
        (*absdi2, *negabsdi2, negdi_cond): New insns and splits.

2012-03-02  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sync.md (atomic_exchange<mode>): New expander.
        (atomic_exchange<mode>_soft): New insn.

2012-03-02  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sync.md: Update copyright notice dates.
        (atomic_compare_and_swap<mode>): Use SImode for return value instead
        of QImode.
        (atomic_compare_and_swap<mode>_soft): Likewise.

2012-03-02  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/31640
        * config/sh/sh.h (LOOP_ALIGN): Move logic to sh_loop_align.
        * config/sh/sh.c: Update copyright notice dates.
        (sh_loop_align): Add logic from LOOP_ALIGN.  Don't disable loop
        alignment for TARGET_HARD_SH4.
        (sh_option_override): Reduce default function alignment.  Set
        loop alignment to 4 bytes when not optimizing for size.

2012-03-02  Maxim Kuvyrkov  <maxim@codesourcery.com>

        PR middle-end/50335
        * doc/invoke.texi (floop-flatten): Remove.
        * toplev.c (process_options): Remove references to flag_loop_flatten.
        * tree-ssa-loop.c (gate_graphite_transform): Same.
        * common.opt (floop-flatten): Obsolete.
        * graphite-poly.c (apply_poly_transforms): Remove reference to
        flag_loop_flatten.
        * Makefile.in (graphite-flattening.o): Remove.
        * graphite-flattening.c: Remove.

2012-03-02  Uros Bizjak  <ubizjak@gmail.com>

        * compare-elim.c (find_comparisons_in_bb): Eliminate only compares
        having mode compatible with the mode of previous compare.  Substitute
        compare mode of previous compare with the mode, compatible
        with eliminated and previous compare.

2012-03-02  Peter Bergner  <bergner@vnet.ibm.com>

        * config/rs6000/dfp.md (floatdidd2): New define_insn.

2012-03-02  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_cc_modes_compatible): Declare CCZmode
        compatible with CCGOCmode and CCGCmode.

2012-03-02  Peter Bergner  <bergner@vnet.ibm.com>

        * config/rs6000/vsx.md (vsx_set_<mode>): Reorder operands.

2012-03-02  Ulrich Weigand  <ulrich.weigand@linaro.org>

        * config/arm/arm.c (arm_sat_operator_match): New function.
        * config/arm/arm-protos.h (arm_sat_operator_match): Add prototype.
        * config/arm/arm.md ("insn" attribute): Add "sat" value.
        ("SAT", "SATrev"): New code iterators.
        ("SATlo", "SAThi"): New code iterator attributes.
        ("*satsi_<SAT:code>"): New pattern.
        ("*satsi_<SAT:code>_shift"): Likewise.
        * config/arm/arm-fixed.md ("arm_ssatsihi_shift"): Add "insn"
        and "shift" attributes.
        ("arm_usatsihi"): Add "insn" attribute.
        * config/arm/predicates.md (sat_shift_operator): Allow multiplication
        by powers of two.  Do not allow shift by 32.

2012-03-02  Uros Bizjak  <ubizjak@gmail.com>

        PR target/46716
        * config/i386/i386.c (construct_container): Use gen_reg_or_parallel
        to pass the argument in the register of "natural" mode.

2012-03-02  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52406
        * tree-data-ref.h: Update documentation about DR_BASE_OBJECT.
        (struct indices): Add unconstrained_base member.
        (struct dr_alias): Remove unused vops member.
        (DR_UNCONSTRAINED_BASE): New define.
        * tree-data-ref.c (dr_analyze_indices): For COMPONENT_REFs
        add indices to allow their disambiguation.  Make DR_BASE_OBJECT
        be an artificial access that covers the whole indexed object,
        or mark it with DR_UNCONSTRAINED_BASE if we cannot do so.  Canonicalize
        plain decl base-objects to their MEM_REF variant.
        (dr_may_alias_p): When the base-object of either data reference
        has unknown size use only points-to information.
        (compute_affine_dependence): Make dumps easier to read and
        more verbose.
        * tree-vect-data-ref.c (vector_alignment_reachable_p): Use
        DR_REF when looking for packed references.
        (vect_supportable_dr_alignment): Likewise.

2012-03-02  Greta Yorsh  <Greta.Yorsh@arm.com>

        * config/arm/arm-ldmstm.ml (write_ldm_commutative_peephole):
        Improve conditions for peepholes of loads followed by commutative
        operators.
        * config/arm/ldmstm.md: Regenerated.

2012-03-02  Richard Guenther  <rguenther@suse.de>

        * BASE-VER: Set to 4.8.0.

2012-03-01  Richard Earnshaw  <rearnsha@arm.com>

        * config.gcc (obsolete): Add all ARM targets using the FPA.
        (with_fpu): Obsolete selection of the FPA or Maverick on ARM.
        * doc/install.texi: Avoid references to obsolete ARM ports.

2012-03-01  Joern Rennecke  <joern.rennecke@embecosm.com>

        * config/epiphany/epiphany.md (movmisalign<mode>): New patterns.

2012-03-01  Jeremy Bennett  <jeremy.bennett@embecosm.com>
            Joern Rennecke  <joern.rennecke@embecosm.com>

        * doc/extend.texi: Expand and update information on interrupt
        attribute for Epiphany.

2012-03-01  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh-protos.h: Update copyright notice dates.
        * config/sh/sh.h: Likewise.
        * config/sh/sh.md: Likewise.
        * config/sh/constraints.md: Likewise.
        * config/sh/predicates.md: Likewise.

2012-03-01  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh-protos.h (tertiary_reload_operand): Remove dead function.
        * config/sh/sh.c (tertiary_reload_operand): Likewise.

2012-03-01  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/constraints.md: Fix comment typo.

2012-03-01  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/52408
        * config/pa/pa.md (zvdep_imm32): Change type of variable x from int to
        unsigned HOST_WIDE_INT.
        (zvdep_imm64): Likewise.
        (vdepi_ior): Change type of variable x from int to HOST_WIDE_INT.
        (vdepi_and): Likewise.
        Likewise for unamed 64-bit patterns.
        * config/pa/predicates.md (lhs_lshift_cint_operand): Update comment.

2012-03-01  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/52001
        PR rtl-optimization/52417
        * cselib.c (cselib_any_perm_equivs): New variable.
        (cselib_reset_table): Check that it's not set when not
        preserving constants.
        (cselib_add_permanent_equiv): Set it.
        (cselib_have_permanent_equivalences): New.
        (cselib_init, cselib_finish): Reset it.
        * cselib.h (cselib_have_permanent_equivalences): Declare.
        * alias.c (get_addr): Restore earlier behavior when there
        aren't permanent equivalences.

2012-03-01  Steven Bosscher  <steven@gcc.gnu.org>

        * config/mn10300/mn10300-modes.def: Fix copyright notice.
        * config/v850/v850-modes.def: Fix copyright notice.

2012-03-01  Georg-Johann Lay  <avr@gjlay.de>

        * doc/extend.texi (AVR Built-in Functions): Document
        __builtin_avr_flash_segment.

        * config/avr/builtins.def (__builtin_avr_flash_segment): New entry.
        * config/avr/avr.md (flash_segment, flash_segment1): New expanders.
        (*split.flash_segment): New insn-and-split.
        * config/avr/avr.c (avr_init_builtins): Add local variables:
        const_memx_void_node, const_memx_ptr_type_node,
        char_ftype_const_memx_ptr.

2012-03-01  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/52445
        * tree-ssa-phiopt.c (struct name_to_bb): Remove ssa_name field,
        add ssa_name_ver, offset and size fields and change store field
        to bool.
        (name_to_bb_hash, name_to_bb_eq): Adjust for the above changes.
        (add_or_mark_expr): Likewise.  Only consider previous stores
        with the same size and offset.
        (nt_init_block): Only look at gimple_assign_single_p stmts,
        doesn't look at rhs2.

2012-03-01  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52443
        * tree-cfg.c (verify_gimple_assign_unary): Allow any
        conversions from integral types to pointer types.

2012-03-01  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr-c.c (avr_cpu_cpp_builtins): Restore built-in
        defines for __UINT24_MAX__, __INT24_MAX__, __INT24_MIN__
        unintentionally removed in r184616.

2012-03-01  Venkataramanan Kumar  <venkataramanan.kumar@amd.com>

        * doc/invoke.texi: Document AMD bdver2 and remove mentioning
        3DNow from bdver1.

2012-02-29  Jakub Jelinek  <jakub@redhat.com>
            Uros Bizjak  <ubizjak@gmail.com>

        PR target/52437
        * config/i386/sse.md (vec_set<mode>_0): Swap "*r" and "fF"
        alternatives, add "e" constraint to the new last alternative
        and ! to last 3 alternatives.

2012-02-29  Eric Botcazou  <ebotcazou@adacore.com>

        * dwarf2out.c (modified_type_die): Set DW_AT_GNAT_descriptive_type and
        DW_AT_artificial attributes at the end of the processing.
        (gen_array_type_die): Likewise.
        (gen_enumeration_type_die): Likewise.
        (gen_struct_or_union_type_die): Likewise.
        (add_gnat_descriptive_type_attribute): Do not suppress debug info for
        the parent type.

2012-02-29  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/52419
        * expr.c (expand_assignment): If doing misaligned store that doesn't
        cover all mode bits, perform a RMW cycle.

        PR tree-optimization/52429
        * tree-parloops.c (separate_decls_in_region_debug): Return early
        if var is LABEL_DECL.

2012-02-29  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/52424
        * tree-ssa-dom.c (dom_opt_leave_block): Push a marker before
        calling dom_thread_across_edge.

2012-02-29  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.c: Move definition of TARGET macros to end of file.

2012-02-29  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr-protos.h (avr_output_bld): Remove unused prototype.
        * config/avr/avr.c (avr_output_bld): Remove unused function.
        (avr_out_sbxx_branch): Use "%T" to print bit position.

2012-02-29  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md: Untabify.

2012-02-29  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md (eqne): New code iterator.
        (*dec-and-branchsi): Use it in text peephole's condition.
        (*dec-and-branchhi): Ditto.
        (*dec-and-branchqi): Ditto.

2012-02-29  Georg-Johann Lay  <avr@gjlay.de>

        PR target/49939
        * config/avr/avr.h (ASM_SPEC): Add -mno-skip-bug if we know that
        the device does not have the skip-bug.

2012-02-29  Oleg Endo  <olegendo@gcc.gnu.org>

        * doc/invoke.texi (-msoft-atomic): Add more detailed description.
        (-mbranch-cost, -mcbranchdi -mcmpeqdi -mfused-madd
        -mpretend-cmove): New.

2012-02-29  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/52397
        * df.h (struct df_d): Adjust comment that hard_regs_live_count
        doesn't count DEBUG_INSN refs.
        * df-scan.c (df_ref_create_structure): Don't set DF_HARD_REG_LIVE
        for DEBUG_INSN refs.

2012-02-28  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        Partially revert:

        2012-02-20  Richard Guenther  <rguenther@suse.de>
        PR tree-optimization/52298
        * tree-vect-stmts.c (vectorizable_load): Properly use
        STMT_VINFO_DR_STEP instead of DR_STEP when vectorizing outer loops.

2012-02-28  Aldy Hernandez  <aldyh@redhat.com>

        PR middle-end/51752
        * gimple.h (gimple_in_transaction): New.
        (gimple_set_in_transaction): New.
        (struct gimple_statement_base): Add in_transaction field.
        * tree-ssa-loop-im.c: (movement_possibility): Restrict movement of
        transaction loads.
        (tree_ssa_lim_initialize): Compute transaction bits.
        * tree.h (compute_transaction_bits): Protoize.
        * trans-mem.c (tm_region_init): Use the heap to store BB
        auxilliary data.
        (compute_transaction_bits): New.

2012-02-28  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

        * gcc.c (display_help): Document --help=common and sort entries
        alphabetically.

2012-02-28  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

        * doc/install.texi: Document check-$LANG specific shortcuts

2012-02-28  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

        PR target/51534
        * config/arm/arm.c (neon_builtin_data): Add entries for vcgeu
        and vcgtu.
        * config/arm/arm_neon.h: Regenerate.
        * config/arm/neon.md (unspec): Add UNSPEC_VCGEU, and UNSPEC_VCGTU.
        (neon_vcgeu): New insn.
        (neon_vcgtu): Likewise.
        * config/arm/neon.ml (s_8_32, u_8_32): New lists.
        (ops): Unsigned comparison intrinsics call a different builtin.

2012-02-28  Richard Guenther  <rguenther@suse.de>

        PR target/52407
        * config/i386/i386.c (ix86_expand_vector_set): Fix element
        ordering for the VEC_CONCAT for two element vectors for
        V2SFmode, V2SImode and V2DImode.

2012-02-28  Richard Earnshaw  <rearnsha@arm.com>

        PR target/49448
        * config.gcc (arm*-*-linux*): Use an unambiguous pattern for
        detecting big-endian triplets.

2012-02-28  Richard Earnshaw  <rearnsha@arm.com>

        * arm.c (aapcs_vfp_is_call_or_return_candidate): Only use the machine
        mode if there is no type information available.

2012-02-28  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR tree-optimization/53207
        * doc/invoke.texi: Document as experimental and relying on graphite.

2012-02-28  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr-devices.c (avr_mcu_type): Adjust NULL part
        of initializer to changes from r184614.

2012-02-28  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52395
        * tree-sra.c (build_ref_for_offset): Also look at the base
        TYPE_ALIGN when figuring out the alignment of the replacement.

2012-02-28  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52402
        * ipa-prop.c (ipa_modify_call_arguments): Properly use
        mis-aligned types when creating the accesses at the call site.

2012-02-28  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/builtins.def: New file.
        * config/avr/t-avr (avr.o, avr-c.o): Depend on it.
        * config/avr/avr.c (enum avr_builtin_id): Use it.
        (avr_init_builtins): Use it. And use avr_bdesc.
        (bdesc_1arg): Remove.
        (bdesc_2arg): Remove.
        (bdesc_3arg): Remove.
        (struct avr_builtin_description): Add field n_args.
        (avr_bdesc): New static variable using builtins.def.
        (avr_expand_builtin): Use it.
        Don't call avr_expand_delay_cycles if op0 is not CONST_INT.
        (avr_fold_builtin): Fold AVR_BUILTIN_SWAP.
        Don't fold AVR_BUILTIN_INSERT_BITS if arg0 is not INTEGER_CST.

2012-02-28  Georg-Johann Lay  <avr@gjlay.de>

        PR target/52148
        * config/avr/avr.md (movmem_<mode>): Replace match_operand that
        match only one single hard register with respective hard reg rtx.
        (movmemx_<mode>): Ditto.
        * config/avr/avr.c (avr_emit_movmemhi): Adapt expanding to new
        insn anatomy of movmem[x]_<mode>.
        (avr_out_movmem): Same for printing assembler and operand usage.

2012-02-28  Georg-Johann Lay  <avr@gjlay.de>

        PR target/49868
        PR target/52261
        * doc/extend.texi (AVR Named Address Spaces): No more try to fix
        address spaces located outside of device flash.

        * config/avr/avr.h (base_arch_s): Remove field n_segments.
        (mcu_type_s): Add field n_flash.
        * config/avr/avr-devices.c (avr_arch_types): Remove .n_segments.
        Set .have_elpm and .have_elpmx to 1 for avrxmega4 and avrxmega5.
        (AVR_MCU): Add N_FLASH argument.
        * config/avr/avr-mcus.def (AVR_MCU): Add initializer for .n_flash.
        * config/avr/avr-c.c (avr_cpu_cpp_builtins): Only define built-in
        macro __FLASH<n> if that address space makes sense for the device.
        * config/avr/avr.c (avr_out_lpm): Don't try to fix address spaces
        outside of target flash.
        (avr_asm_named_section): Ditto.
        (avr_asm_select_section): Ditto.
        (avr_addr_space_convert): Ditto.
        (avr_emit_movmemhi): Ditto.
        (avr_nonconst_pointer_addrspace, avr_pgm_check_var_decl): Error if
        address space is outside of device flash.
        (avr_insert_attributes): Ditto.
        (avr_xload_libgcc_p): Use avr_current_device->n_flash instead of
        avr_current_arch->n_segments.

2012-02-27  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/52352
        * config/i386/i386.md (*movabs<mode>_1): Enable only for TARGET_LP64.
        (*movabs<mode>_2): Likewise.

2012-02-27  Jakub Jelinek  <jakub@redhat.com>

        PR target/52375
        * config/arm/neon.md (vashr<mode>3, vlshr<mode>3): Use
        s_register_operand in the test instead of REG_P.  Don't call
        gen_reg_rtx if it won't be used.

        PR tree-optimization/52376
        * ipa-split.c (split_function): Ignore CLOBBER stmts.

2012-02-27  Stuart Henderson  <shenders@gcc.gnu.org>

        * ifcvt.c (noce_get_condition): Check condition variable is not
        small_register_classes_for_mode_p before accepting.

2012-02-27  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*movabs<mode>_1): Fix operand 1 constraints.

2012-02-27  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

        Revert:
        2012-01-09  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
        * config/arm/arm-cores.def (cortex-a15): Use cortex_a15_tune for
        tuning parameters.
        * config/arm/arm.c (arm_cortex_a15_tune): New static variable.

2012-02-27  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh.h: Delete dead GO_IF_LEGITIMATE_INDEX macro.

2012-02-26  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/predicates.md: Remove blank lines.
        * config/sh/sh.c: Fix typos in comments.
        * config/sh/constraints.md: Likewise.
        * config/sh/sh.md: Remove blank lines.
        Fix typos in comments.  Use ;; as comment characters.

2012-02-26  Walter Lee  <walt@tilera.com>

        * config/tilegx/tilegx.c (match_pcrel_step2): Fix instruction pattern.
        (replace_mov_pcrel_step2): Ditto.

2012-02-25  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/52001
        * alias.c (refs_newer_value_cb, refs_newer_value_p): New.
        (get_addr): Walk canonical value's locs.  Avoid returning VALUEs
        and locs that reference values newer than the non-canonical value
        at hand.  Return the canonical value as a worst case.
        (memrefs_conflict_p): Walk canonical value's locs.

        PR debug/52001
        * cselib.c (preserve_only_constants): Rename to...
        (preserve_constants_and_equivs): ... this.  Split out...
        (invariant_or_equiv_p): ... this.  Preserve plus expressions
        of other preserved expressions too.
        (cselib_reset_table): Adjust.
        * var-tracking.c (reverse_op): Use canonical value to build
        reverse operation.

2012-02-23  Kai Tietz  <ktietz@redhat.com>

        * config/i386/i386.c (ix86_delegitimize_address): Handle
        UNSPEC_PCREL plus displacement.

2012-02-24  Georg-Johann Lay  <avr@gjlay.de>

        PR target/52261
        * config/avr/avr.c (avr_out_movhi_mr_r_xmega): Use base
        to test for unusedness in st X addressing.

2012-02-24  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52361
        * gimple.c (walk_gimple_op): Use predicates with less redundant tests.
        (is_gimple_reg_type): Move inline ...
        * gimple.h (is_gimple_reg_type): ... here.

2012-02-24  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52361
        * passes.c (execute_function_todo): When verifying SSA form
        verify gimple form first.
        * tree-ssa.c (verify_ssa): Do not verify gimple form here.

2012-02-24  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52355
        * fold-const.c (fold_addr_of_array_ref_difference): New function.
        (fold_binary_loc): Use it to extend the existing &a[i] - &a[j] folding.

2012-02-13  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

        * tree-if-conv (predicate_scalar_phi): Commentary typo fix.

2012-02-23  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

        * tree-phinodes.c (make_phi_node): Mark static.
        * tree-flow.h (make_phi_node): Remove extern decl.
        * doc/gimple.texi (make_phi_node): Remove documentation.

2012-02-23  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

        * tree-into-ssa (update_ssa): Avoid trailing whitespace in dump_file.
        * tree-ssa-sccvn.c (print_scc): Ditto.

2012-02-23  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

        * doc/passes.texi (Full redundancy elimination): Fix typo.

2012-02-23  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

        * doc/invoke.texi (-fdse, -fdce): Remove duplicate entries.

2012-02-23  Eric Botcazou  <ebotcazou@adacore.com>

        PR bootstrap/52287
        * haifa-sched.c (rank_for_schedule): Stabilize sort for debug insns.

2012-02-23  Uros Bizjak  <ubizjak@gmail.com>

        PR c/52290
        * c-decl.c (start_function): Exit early if decl1 is not FUNTION_DECL.

2012-02-23  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md (code_stdname): Add ior, xor.
        (xior): New code iterator.
        (*<code_stdname><mode>qi.byte0): Use xior instead of ior.
        (*<code_stdname><mode>qi.byte1-3): Ditto.

2012-02-23  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/52019
        * ipa-split.c (find_return_bb, find_retval, visit_bb): Ignore
        CLOBBER stmts.

2012-02-23  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        * acinclude.m4: Use HAVE_INITFINI_ARRAY_SUPPORT instead of
        HAVE_INITFINI_ARRAY to work around namespace pollution in
        certain versions of newlib system headers.
        * config.in: Regenerate.
        * configure: Regenerate.
        * config/initfini-array.h: Use HAVE_INITFINI_ARRAY_SUPPORT
        instead of HAVE_INITFINI_ARRAY.

2012-02-22  Uros Bizjak  <ubizjak@gmail.com>

        PR target/52330
        * config/i386/i386.c (ix86_print_operand) <case 'H'>: Error out if x
        is not offsettable memory reference.

2012-02-22  Georg-Johann Lay  <avr@gjlay.de>

        PR target/18145
        * config/avr/avr.c (avr_asm_output_aligned_decl_common): Skip
        setting avr_need_clear_bss_p for __gnu_lto* symbols.

2012-02-22  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.h (avr_accumulate_outgoing_args): Return int.
        * config/avr/avr.c (avr_accumulate_outgoing_args): Return int.

2012-02-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * configure.ac (LIB_TLS_SPEC): Enforce use of alternate thread
        library on Solaris 8 even without TLS support.
        * configure: Regenerate.

2012-02-22  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52329
        * gimple-fold.c (fold_stmt_1): Also canonicalize ADDR_EXPRs
        for GIMPLE_DEBUG stmts.

2012-02-22  Martin Jambor  <mjambor@suse.cz>

        PR middle-end/51782
        * emit-rtl.c (set_mem_attributes_minus_bitpos): Set address space
        according to the base object.

2012-02-22  Georg-Johann Lay  <avr@gjlay.de>

        PR rtl-optimization/50063
        * config/avr/avr.md (movhi_sp_r): Handle -1 (unknown IRQ state)
        and 2 (8-bit SP) in operand 2.
        * config/avr/avr.c (avr_prologue_setup_frame): Adjust prologue
        setup to use movhi_sp_r instead of vanilla move to write SP.
        Adjust REG_CFA notes to superseed unspec.
        (expand_epilogue): Adjust epilogue setup to use movhi_sp_r instead
        of vanilla move.
        As function body might contain CLI or SEI: Use irq_state 0 (IRQ
        known to be off) only with TARGET_NO_INTERRUPTS. Never use
        irq_state 1 (IRQ known to be on) here.

2012-02-21  Bernd Schmidt  <bernds@codesourcery.com>

        * ira.c (check_allocation): Use REG_WORDS_BIG_ENDIAN, not
        WORDS_BIG_ENDIAN.
        * ira-color.c (setup_profitable_hard_regs, check_hard_reg_p,
        assign_hard_reg): Likewise.

2012-02-21  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md (neghi2): Remove "!d,0" alternative. Tweak "r,0".

2012-02-21  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md
        (*dec-and-branchhi!=-1.d.clobber): New text peephole.
        (*dec-and-branchhi!=-1.l.clobber): New text peephole.

2012-02-21  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr-protos.h (avr_accumulate_outgoing_args): Move
        prototype from here to...
        * config/avr/avr.h: ...here.

2012-02-21  Richard Earnshaw  <rearnsha@arm.com>

        PR target/52294
        * thumb2.md (thumb2_shiftsi3_short): Split register and
        immediate shifts.  For register shifts tie operands 0 and 1.
        (peephole2 for above): Check that register-controlled shifts
        have suitably tied operands.

2012-02-21  Quentin Neill  <quentin.neill@amd.com>

        PR target/52137
        * config/i386/bdver1.md (bdver1_call, bdver1_push,
        bdver1_pop, bdver1_leave, bdver1_lea, bdver1_imul_DI, bdver1_imul,
        bdver1_imul_mem_DI, bdver1_imul_mem, bdver1_idiv, bdver1_idiv_mem,
        bdver1_str, bdver1_idirect, bdver1_ivector, bdver1_idirect_loadmov,
        bdver1_idirect_load, bdver1_ivector_load, bdver1_idirect_movstore,
        bdver1_idirect_both, bdver1_ivector_both, bdver1_idirect_store,
        bdver1_ivector_store, bdver1_fldxf, bdver1_fld, bdver1_fstxf,
        bdver1_fst, bdver1_fist, bdver1_fmov_bdver1, bdver1_fadd_load,
        bdver1_fadd, bdver1_fmul_load, bdver1_fmul, bdver1_fsgn,
        bdver1_fdiv_load, bdver1_fdiv, bdver1_fpspc_load, bdver1_fpspc,
        bdver1_fcmov_load, bdver1_fcmov, bdver1_fcomi_load,
        bdver1_fcomi, bdver1_fcom_load, bdver1_fcom,
        bdver1_fxch, bdver1_ssevector_avx128_unaligned_load,
        bdver1_ssevector_avx256_unaligned_load,
        bdver1_ssevector_sse128_unaligned_load,
        bdver1_ssevector_avx128_load, bdver1_ssevector_avx256_load,
        bdver1_ssevector_sse128_load, bdver1_ssescalar_movq_load,
        bdver1_ssescalar_vmovss_load, bdver1_ssescalar_sse128_load,
        bdver1_mmxsse_load, bdver1_sse_store_avx256, bdver1_sse_store,
        bdver1_mmxsse_store_short, bdver1_ssevector_avx256,
        bdver1_movss_movsd, bdver1_mmxssemov, bdver1_sselog_load_256,
        bdver1_sselog_256, bdver1_sselog_load, bdver1_sselog,
        bdver1_ssecmp_load, bdver1_ssecmp, bdver1_ssecomi_load,
        bdver1_ssecomi, bdver1_vcvtX2Y_avx256_load, bdver1_vcvtX2Y_avx256,
        bdver1_ssecvt_cvtss2sd_load, bdver1_ssecvt_cvtss2sd,
        bdver1_sseicvt_cvtsi2sd_load, bdver1_sseicvt_cvtsi2sd,
        bdver1_ssecvt_cvtpd2ps_load, bdver1_ssecvt_cvtpd2ps,
        bdver1_ssecvt_cvtdq2ps_load, bdver1_ssecvt_cvtdq2ps,
        bdver1_ssecvt_cvtdq2pd_load, bdver1_ssecvt_cvtdq2pd,
        bdver1_ssecvt_cvtps2pd_load, bdver1_ssecvt_cvtps2pd,
        bdver1_ssecvt_cvtsX2si_load, bdver1_ssecvt_cvtsX2si,
        bdver1_ssecvt_cvtpd2pi_load, bdver1_ssecvt_cvtpd2pi,
        bdver1_ssecvt_cvtpd2dq_load, bdver1_ssecvt_cvtpd2dq,
        bdver1_ssecvt_cvtps2pi_load, bdver1_ssecvt_cvtps2pi,
        bdver1_ssemuladd_load_256, bdver1_ssemuladd_256,
        bdver1_ssemuladd_load, bdver1_ssemuladd, bdver1_sseimul_load,
        bdver1_sseimul, bdver1_sseiadd_load, bdver1_sseiadd,
        bdver1_ssediv_double_load_256, bdver1_ssediv_double_256,
        bdver1_ssediv_single_load_256, bdver1_ssediv_single_256,
        bdver1_ssediv_double_load, bdver1_ssediv_double,
        bdver1_ssediv_single_load, bdver1_ssediv_single, bdver1_sseins):
        Add "bdver2" attribute.

2012-02-21  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/s390.c (s390_option_override): Make -mhard-dfp the
        default if possible and not specified otherwise.

2012-02-21  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52314
        * gimplify.c (create_tmp_from_val): Use the main variant type
        for the type of the temporary we create.

2012-02-21  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52324
        * gimplify.c (gimplify_expr): When re-gimplifying expressions
        do not gimplify a MEM_REF address operand if it is already
        in suitable form.

2012-02-21  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/s390.md ("fixuns_trunc<mode>si2"): Replace
        TARGET_HARD_FLOAT with TARGET_HARD_DFP.

2012-02-21  Richard Guenther  <rguenther@suse.de>

        * tree-vect-stmts.c (vectorizable_load): Use pre-computed
        nested_in_vect_loop.

2012-02-21  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/52318
        * gimple-fold.c (gimplify_and_update_call_from_tree): Add
        vdef also to non-pure/const call stmts in the sequence.

2012-02-21  Tristan Gingold  <gingold@adacore.com>

        * config/vms/vms-ld.c (main): Fix IDENTIFICATION padding.

2012-02-20  David S. Miller  <davem@davemloft.net>

        * config/sparc/sparc.md (load_pcrel_sym<P:mode>): Explain why we
        don't use the "rd %pc" instruction on v9 for PIC register loads.

2012-02-20  Aldy Hernandez  <aldyh@redhat.com>

        PR middle-end/52141
        * trans-mem.c (ipa_tm_scan_irr_block): Error out on GIMPLE_ASM's
        in a transaction safe function.

2012-02-20  Kai Tietz  <ktietz@redhat.com>

        PR target/52238
        * stor-layout.c (place_field): Handle desired_align for
        ms-bitfields, too.

2012-02-20  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52298
        * tree-vect-stmts.c (vectorizable_store): Properly use
        STMT_VINFO_DR_STEP instead of DR_STEP when vectorizing
        outer loops.
        (vectorizable_load): Likewise.
        * tree-vect-data-refs.c (vect_analyze_data_ref_access):
        Access DR_STEP after ensuring it is not NULL.

2012-02-20  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/52286
        * fold-const.c (fold_binary_loc): For (X & C1) | C2
        optimization use double_int_to_tree instead of build_int_cst_wide,
        rewrite to use double_int vars.

2012-02-20  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR target/50166
        * acinclude.m4 (gcc_AC_INITFINI_ARRAY): Require gcc_SUN_LD_VERSION.
        Define _start.
        Remove -e 0 from $gcc_cv_ld invocation.
        Only use __GLIBC_PREREQ if defined.
        Enable on Solaris since Solaris 8 patch.
        (gcc_SUN_LD_VERSION): New macro.
        * configure.ac (ld_ver) <*-*-solaris2*>: Refer to
        gcc_SUN_LD_VERSION for version number format.
        * configure: Regenerate.
        * varasm.c (get_elf_initfini_array_priority_section): Set
        SECTION_NOTYPE for non-default priority.
        Use get_section instead of get_unnamed_section to emit
        .init_array/.fini_array with default priority.

2012-02-19  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.c (mips_need_mips16_rdhwr_p): New variable.
        (mips_get_tp): Set it.  Record that __mips16_rdhwr binds locally.
        (mips_start_unique_function, mips_output_mips16_rdhwr)
        (mips_code_end): New functions.
        (TARGET_ASM_CODE_END): Define.

2012-02-19  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.c (mips16_build_call_stub): Add CFI information
        to stubs with non-sibling calls.

2012-02-18  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi (-fira-* options): Copy-edit.
        (ira-* parameters): Copy-edit.

2012-02-17  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi: Minor copy-edits to bring into conformance with
        GCC coding conventions.

2012-02-17  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi: Consistently hyphenate "big-endian"/"little-endian"
        when used as adjectives.

2012-02-16  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi: Clean up "that"/"which" confusion.

2012-02-17  Steven Bosscher  <steven@gcc.gnu.org>

        * system.h: Poison SMALL_REGISTER_CLASSES
        * config/rl78/rl78.h: Replace SMALL_REGISTER_CLASSES with hook.
        * config/rx/rx.h: Remove SMALL_REGISTER_CLASSES.

2012-02-16  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/52285
        * tree-tailcall.c (find_tail_calls): Ignore gimple_clobber_p stmts
        when deciding if a call is a tail call or tail recursion.

2012-02-16  Kai Tietz  <ktietz@redhat.com>

        * config/i386/i386.c (legitimate_pic_address_disp_p): Allow
        interger-constant displacement for UNSPEC_PCREL.

2012-02-16  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/52208
        * ira-costs.c (scan_one_insn): Don't decrease mem_cost
        for MEMs with REG_EQUIV, if the MEM isn't general_operand.

        PR tree-optimization/52255
        * tree-vect-loop-manip.c (slpeel_tree_peel_loop_to_edge): If
        loop->header has virtual PHI, but exit_e->dest doesn't, add
        virtual PHI to exit_e->dest and adjust all uses after the loop.

        PR debug/52260
        * dwarf2out.c (copy_decls_walk): Fill in *slot before traversing
        children with clone_tree_hash, not after it.

2012-02-16  Iain Sandoe  <iains@gcc.gnu.org>

        * config/darwin.h (ASM_OUTPUT_LABELREF): Add user label prefix for
        extended identifiers.

2012-02-16  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/51929
        * cgraphunit.c (verify_edge_corresponds_to_fndecl): If node is
        a same_body_alias, also test whether e->callee isn't a former
        or current clone of the decl this is a same body alias of.

        PR translation/52264
        * cgraphunit.c (verify_cgraph_node): Fix a typo.

2012-02-15  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi: Clean up "n-bit/byte/word" modifiers.

2012-02-15  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/52199
        * config/rs6000/rs6000.c (rs6000_expand_vector_init): Use
        force_reg instead of copy_to_reg for better optimization.  Force
        non-register or memory operands into a register.

2012-02-15  Andrew MacLeod  <amacleod@redhat.com>

        * extend.texi: Reserve upper bits of memory model for future use.

2012-01-15  Georg-Johann Lay  <avr@gjlay.de>
            Anatoly Sokolov <aesok@post.ru>
            Eric Weddington <eric.weddington@atmel.com>

        PR target/52261
        * config/avr/avr-devices.c (avr_arch_types): Add avrxmega2,
        avrxmega4, avrxmega5, avrxmega6, avrxmega7.
        Rewrite initializers for .macro.
        * config/avr/avr-mcus.def (AVR_MCU): Add known MCUs:
        avrxmega2: atxmega16a4, atxmega16d4, atxmega16x1, atxmega32a4
        atxmega32d4, atxmega32x1.
        avrxmega4: atxmega64a3, atxmega64d3.
        avrxmega5: atxmega64a1, atxmega64a1u.
        avrxmega6: atxmega128a3, atxmega128d3, atxmega192a3, atxmega192d3,
        atxmega256a3, atxmega256a3b, atxmega256a3bu, atxmega256d3.
        avrxmega7: atxmega128a1, atxmega128a1u.
        * config/avr/avr.h (enum avr_arch): Add: ARCH_AVRXMEGA2,
        ARCH_AVRXMEGA4, ARCH_AVRXMEGA5, ARCH_AVRXMEGA6, ARCH_AVRXMEGA7.
        (struct base_arch_s): Rename reserved to xmega_p.
        Rename reserved2 to have_rampd.
        (AVR_XMEGA): New define.
        (AVR_HAVE_RAMPD, AVR_HAVE_RAMPX, AVR_HAVE_RAMPY): New defines.
        (AVR_HAVE_RAMPZ): Change definition to fit xmega.
        * config/avr/predicates.md (io_address_operand): Take into
        account SFR offset.
        (low_io_address_operand): Ditto.
        (high_io_address_operand): Ditto.
        * config/avr/avr.md (isa): Add alternatives no_xmega, xmega.
        (enabled, movhi_sp_r): Use them.
        * config/avr/avr-c.c (avr_cpu_cpp_builtins): Use
        cpp_define_formatted to built-in define __AVR_ARCH__.
        (__AVR_XMEGA__): New built-in define.
        (__AVR_HAVE_RAMPD__): New built-in define.
        (__AVR_HAVE_RAMPX__): New built-in define.
        (__AVR_HAVE_RAMPY__): New built-in define.
        (__AVR_HAVE_RAMPZ__): Change condition when to built-in define it.

        * config/avr/avr.c (avr_addr_t): Add ccp, rampd, rampx, rampy.
        (avr_option_override): Initialize them.
        (sreg_rtx, rampd_rtx, rampx_rtx, rampy_rtx): New GTY rtx.
        (avr_init_expanders): Initialize them. No more block several calls.
        (emit_push_sfr): New static function.
        (avr_prologue_setup_frame): Use it to push SREG, RAMPD/X/Y/Z as needed.
        Handle AVR_XMEGA.
        (expand_epilogue): Handle AVR_XMEGA. Pop RAMPD/X/Y/Z as needed.
        (avr_print_operand): Print addreeses as symbols for
        RAMPX, RAMPY, RAMPD, CCP.
        (output_movhi): Handle AVR_XMEGA when writing to SP.
        (avr_out_movhi_mr_r_xmega): New static function.
        (out_movhi_mr_r): Forward to avr_out_movhi_mr_r_xmega for AVR_XMEGA.
        (avr_file_start): Print symbol defines for __RAMPX__,  __RAMPY__,
        __RAMPD__,  __CCP__ as needed.

        * config/avr/multilib.h: Regenerate.
        * config/avr/t-multilib: Regenerate.
        * config/avr/avr-tables.opt: Regenerate.

2012-02-15  Tobias Grosser <grosser@fim.uni-passau.de>

        PR tree-optimization/50561
        * graphite-flattening.c (lst_project_loop): Do not
        remove old scattering dimensions after flattening.
        (lst_do_flatten): Likewise.

2012-02-15  Georg-Johann Lay  <avr@gjlay.de>

        * doc/extend.texi (AVR Built-in Functions): Remove doc for
        __builtin_avr_map8, __builtin_avr_map16.
        Document __builtin_avr_insert_bits.

        * config/avr/avr.md (map_bitsqi, map_bitshi): Remove.
        (insert_bits): New insn.
        (adjust_len.map_bits): Rename to insert_bits.
        (UNSPEC_MAP_BITS): Rename to UNSPEC_INSERT_BITS.
        * avr-protos.h (avr_out_map_bits): Remove.
        (avr_out_insert_bits, avr_has_nibble_0xf): New.
        * config/avr/constraints.md (Cxf,C0f): New.
        * config/avr/avr.c (avr_cpu_cpp_builtins): Remove built-in
        defines __BUILTIN_AVR_MAP8, __BUILTIN_AVR_MAP16.
        New built-in define __BUILTIN_AVR_INSERT_BITS.
        * config/avr/avr.c (TARGET_FOLD_BUILTIN): New define.
        (enum avr_builtin_id): Add AVR_BUILTIN_INSERT_BITS.
        (avr_move_bits): Rewrite.
        (avr_fold_builtin, avr_map_metric, avr_map_decompose): New static
        functions.
        (avr_map_op_t): New typedef.
        (avr_map_op): New static variable.
        (avr_out_insert_bits, avr_has_nibble_0xf): New functions.
        (adjust_insn_length): Handle ADJUST_LEN_INSERT_BITS.
        (avr_init_builtins): Add definition for __builtin_avr_insert_bits.
        (bdesc_3arg, avr_expand_triop_builtin): New.
        (avr_expand_builtin): Use them. And handle AVR_BUILTIN_INSERT_BITS.
        (avr_revert_map, avr_swap_map, avr_id_map, avr_sig_map): Remove.
        (avr_map_hamming_byte, avr_map_hamming_nonstrict): Remove.
        (avr_map_equal_p, avr_map_sig_p): Remove.
        (avr_out_swap_bits, avr_out_revert_bits, avr_out_map_bits): Remove.
        (bdesc_2arg): Remove AVR_BUILTIN_MAP8, AVR_BUILTIN_MAP16.
        (adjust_insn_length): Remove handling for ADJUST_LEN_MAP_BITS.
        (enum avr_builtin_id): Remove AVR_BUILTIN_MAP8, AVR_BUILTIN_MAP16.
        (avr_init_builtins): Remove __builtin_avr_map8, __builtin_avr_map16.
        (avr_expand_builtin): Remove AVR_BUILTIN_MAP8, AVR_BUILTIN_MAP16.

2012-02-14  Bernd Schmidt  <bernds@codesourcery.com>

        * config/c6x/c6x.md (reserve_cycles): New attribute.
        * config/c6x/c6x.c (c6x_sched_reorder_1): Ensure insns we predicate
        don't reserve functional units after the branch occurs.

2012-02-14  Aldy Hernandez  <aldyh@redhat.com>

        PR middle-end/52142
        * ipa-inline.c (can_inline_edge_p): Do not inline tm_pure
        functions into non-tm_pure functions.

2012-02-14  Eric Botcazou  <ebotcazou@adacore.com>

        PR lto/52178
        * gimple.c (iterative_hash_gimple_type): Use RECORD_OR_UNION_TYPE_P.
        (iterative_hash_canonical_type): Likewise.
        * tree-ssa-pre.c (fini_pre): Clean up the CFG only after purging all
        the dead edges.

2012-02-14  Bernd Schmidt  <bernds@codesourcery.com>

        * haifa-sched.c (prune_ready_list): Ensure that if there is a
        sched-group insn, it either remains alone or the entire list is pruned.

2012-02-14  Jonathan Wakely  <jwakely.gcc@gmail.com>

        * doc/install.texi (Prerequisites): Fix grammar.
        (Configuration): Likewise.

2012-02-14  Jonathan Wakely  <jwakely.gcc@gmail.com>

        * doc/install.texi (Prerequisites): Suggest building GMP, MPFR and
        MPC as part of GCC before describing configuring with --with-gmp etc.
        (Installing GCC: Configuration): --with-gmp etc. aren't needed if
        sources are present.

2012-02-14  Jakub Jelinek  <jakub@redhat.com>

        PR debug/51950
        * dwarf2out.c (clone_tree_hash): New function.
        (copy_decls_walk): Use it instead of clone_tree.

2012-02-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52244
        PR tree-optimization/51528
        * tree-sra.c (analyze_access_subtree): Only create INTEGER_TYPE
        replacements for integral types.

2012-02-14  Walter Lee  <walt@tilera.com>

        * config.gcc: Handle tilegx and tilepro.
        * configure.ac (gcc_cv_as_dwarf2_debug_line): Enable test for
        tilegx and tilepro.
        Add HAVE_AS_TLS check for tilegx and tilepro.
        * configure: Regenerate.
        * doc/contrib.texi: Add Mat Hostetter and self.
        * doc/extend.texi (TILE-Gx Built-in Functions): New node.
        Document instruction intrinsics and network accessing intrinsics.
        (TILEPro Built-in Functions): New node.  Document instruction
        intrinsics and network accessing intrinsics.
        * doc/install.texi (Specific, tilegx-*-linux*): Document it.
        (Specific, tilepro-*-linux*): Likewise.
        * doc/invoke.texi (TILE-Gx Options): New section.
        (TILEPro Options): New section.
        * doc/md.texi (TILE-Gx): New section.
        (TILEPro): New section.
        * common/config/tilegx/tilegx-common.c: New file.
        * common/config/tilepro/tilepro-common.c: New file.
        * config/tilegx/constraints.md: New file.
        * config/tilegx/linux.h: New file.
        * config/tilegx/mul-tables.c: New file.
        * config/tilegx/predicates.md: New file.
        * config/tilegx/sync.md: New file.
        * config/tilegx/t-tilegx: New file.
        * config/tilegx/tilegx-builtins.h: New file.
        * config/tilegx/tilegx-c.c: New file.
        * config/tilegx/tilegx-generic.md: New file.
        * config/tilegx/tilegx-modes.def: New file.
        * config/tilegx/tilegx-multiply.h: New file.
        * config/tilegx/tilegx-protos.h: New file.
        * config/tilegx/tilegx.c: New file.
        * config/tilegx/tilegx.h: New file.
        * config/tilegx/tilegx.md: New file.
        * config/tilegx/tilegx.opt: New file.
        * config/tilepro/constraints.md: New file.
        * config/tilepro/gen-mul-tables.cc: New file.
        * config/tilepro/linux.h: New file.
        * config/tilepro/mul-tables.c: New file.
        * config/tilepro/predicates.md: New file.
        * config/tilepro/t-tilepro: New file.
        * config/tilepro/tilepro-builtins.h: New file.
        * config/tilepro/tilepro-c.c: New file.
        * config/tilepro/tilepro-generic.md: New file.
        * config/tilepro/tilepro-modes.def: New file.
        * config/tilepro/tilepro-multiply.h: New file.
        * config/tilepro/tilepro-protos.h: New file.
        * config/tilepro/tilepro.c: New file.
        * config/tilepro/tilepro.h: New file.
        * config/tilepro/tilepro.md: New file.
        * config/tilepro/tilepro.opt: New file.

2012-02-14  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/52210
        * tree-vect-slp.c (vect_get_and_check_slp_defs): Call
        vect_model_simple_cost with two entry vect_def_type array instead
        of an address of dt.

2012-02-14  Richard Guenther  <rguenther@suse.de>

        PR lto/52178
        * tree-streamer-in.c (lto_input_ts_field_decl_tree_pointers):
        Do not stream DECL_QUALIFIER.
        * tree-streamer-out.c (write_ts_field_decl_tree_pointers): Likewise.
        * tree.c (free_lang_data_in_decl): Free DECL_QUALIFIER.
        (find_decls_types_r): Do not walk DECL_QUALIFIER.

2012-02-14  Jakub Jelinek  <jakub@redhat.com>

        PR c/52181
        * c-decl.c (merge_decls): Copy DECL_USER_ALIGN bit from olddecl to
        newdecl.

2012-02-13  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/52172
        * cselib.h (cselib_subst_to_values_from_insn): New prototype.
        * cselib.c (cselib_subst_to_values_from_insn): New function.
        * sched-deps.c (add_insn_mem_dependence,
        sched_analyze_1, sched_analyze_2): Use it.

2012-02-13  Jan Hubicka  <jh@suse.cz>

        PR middle-end/52214
        * predict.c (predict_paths_for_bb): Fix thinko in prevoius patch.

2012-02-13  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc.c (LINK_COMMAND_SPEC): Deal with -fgnu-tm.
        (GTM_SELF_SPECS): Define if not already defined.
        (driver_self_specs): Add GTM_SELF_SPECS.
        * config/darwin.h (LINK_COMMAND_SPEC_A): Deal with -fgnu-tm.
        (GTM_SELF_SPECS): Define.
        * config/i386/cygwin.h (GTM_SELF_SPECS): Likewise.
        * config/i386/mingw32.h (GTM_SELF_SPECS): Likewise.

2012-02-13  Jakub Jelinek  <jakub@redhat.com>

        * cselib.c (expand_loc): Return sp, fp, hfp or cfa base reg right
        away if seen.

        * cselib.c (dump_cselib_val): Don't assume l->setting_insn is non-NULL.

        PR middle-end/52230
        * omp-low.c (expand_omp_for): If a static schedule without chunk size
        has NULL region->cont, force fd.chunk_size to be integer_zero_node.

2012-02-13  Andrew MacLeod  <amacleod@redhat.com>

        PR c/52190
        * doc/extend.texi : Fix another __atomic_compare_exchange typo.

2012-02-13  Richard Guenther  <rguenther@suse.de>

        PR translation/52211
        * passes.c (enable_disable_pass): Fix typo.

2012-02-13  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/52209
        * expr.c (expand_expr_real_2) <case BIT_NOT_EXPR>: Only expand using
        XOR for reduce_bit_field if type is unsigned.

2012-02-12  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.h (CANNOT_CHANGE_MODE_CLASS): In 64-bit mode,
        disallow changes from SFmode to mode with different size in FP regs.

2012-02-12  Robert Millan  <rmh@gnu.org>
            Gerald Pfeifer <gerald@pfeifer.com>

        * ginclude/stddef.h [__FreeBSD_kernel__] (__size_t): Do not define.
        Tweak comment.

2012-02-11  Richard Sandiford  <rdsandiford@googlemail.com>

        PR rtl-optimization/52175
        * reorg.c (fill_slots_from_thread): Don't apply add/sub optimization
        to frame-related instructions.

2012-02-10  Jason Merrill  <jason@redhat.com>

        PR c++/51910
        * tlink.c (demangled_hash_entry): Change mangled to a VEC.
        (demangle_new_symbols): Fill it.
        (scan_linker_output): Walk it.
        (start_tweaking): Split out from scan_linker_output.
        (maybe_tweak): Update sym->chosen.
        * Makefile.in (COLLECT2_OBJS): Add vec.o and gcc-none.o

2012-02-11  Jakub Jelinek  <jakub@redhat.com>

        PR debug/52132
        * reg-stack.c (subst_stack_regs_in_debug_insn): Don't use get_true_reg.

2012-02-11  Uros Bizjak  <ubizjak@gmail.com>

        * compare-elim.c (find_comparisons_in_bb): Eliminate only compares
        having the same mode as previous compare.

2012-02-10  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.c (sparc_flat_expand_prologue): Use emit_use.
        * config/sparc/sparc.md (UNSPECV_GOTO): Delete.
        (nonlocal_goto_internal): Likewise.
        (nonlocal_goto): Emit a use and an indirect jump directly.

2012-02-10  Andrew MacLeod  <amacleod@redhat.com>

        PR c/52190
        * doc/extend.texi : Update comments for __atomic_compare_exchange and
        __atomic_{is,always}_lock_free.

2012-02-10  Uros Bizjak  <ubizjak@gmail.com>

        PR target/52146
        * config/i386/i386.c (ix86_legitimate_address_p): Disallow
        negative constant address for TARGET_X32.

2012-02-10  Richard Henderson  <rth@redhat.com>

        * tree-ssa-dce.c (propagate_necessity): Handle GIMPLE_TRANSACTION.
        * tree-ssa-operands.c (parse_ssa_operands): Add virtual operands
        for GIMPLE_TRANSACTION.  Tidy if's into a switch.

2012-02-10  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
            Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/50031
        * targhooks.c (default_builtin_vectorization_cost): Handle
        vec_promote_demote.
        * target.h (enum vect_cost_for_stmt): Add vec_promote_demote.
        * tree-vect-loop.c (vect_get_single_scalar_iteraion_cost): Handle
        all types of reduction and pattern statements.
        (vect_estimate_min_profitable_iters): Likewise.
        * tree-vect-stmts.c (vect_model_promotion_demotion_cost): New function.
        (vect_get_load_cost): Use vec_perm for permutations; add dump logic
        for explicit realigns.
        (vectorizable_conversion): Call vect_model_promotion_demotion_cost.
        * config/spu/spu.c (spu_builtin_vectorization_cost): Handle
        vec_promote_demote.
        * config/i386/i386.c (ix86_builtin_vectorization_cost): Likewise.
        * config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost): Update
        vec_perm for VSX and handle vec_promote_demote.

2012-02-10  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/52177
        * builtins.c (fold_builtin_atomic_always_lock_free,
        expand_builtin_atomic_always_lock_free,
        fold_builtin_atomic_is_lock_free, expand_builtin_atomic_is_lock_free):
        Return and/or test boolean_true_node/boolean_false_node instead of
        integer_one_node/integer_zero_node.

2012-02-10  Jan Hubicka  <jh@suse.cz>

        PR middle-end/48600
        * predict.c (predict_paths_for_bb): Prevent looping.
        (predict_paths_leading_to_edge, predict_paths_leading_to): Update.

2012-02-10  Roman Zhuykov  <zhroma@ispras.ru>

        * config/arm/arm.c (output_move_double): In one case properly
        count number of instructions that will be emitted.

2012-02-10  Richard Guenther  <rguenther@suse.de>

        PR translation/52193
        * cgraphunit.c (cgraph_mark_functions_to_output): Fix typo.

2012-02-09  Peter Bergner  <bergner@vnet.ibm.com>

        PR middle-end/52140
        * dojump.c (do_compare_rtx_and_jump): Use SCALAR_FLOAT_MODE_P.

2012-02-09  Jakub Jelinek  <jakub@redhat.com>

        PR debug/52165
        * var-tracking.c (emit_note_insn_var_location): If
        EMIT_NOTE_BEFORE_INSN and insn is NOTE_INSN_CALL_ARG_LOCATION,
        emit it before next non-NOTE_INSN_CALL_ARG_LOCATION
        non-NOTE_DURING_CALL_P insn.

2012-02-09  Bin Cheng  <bin.cheng@arm.com>

        PR middle-end/51867
        * builtins.c (expand_builtin): Don't check DECL_ASSEMBLER_NAME_SET_P.

2012-02-08  Magnus Granberg  <zorry@gentoo.org>

        PR driver/48524
        * gcc.c (switch_matches) Support switches with separated form,
        -D and -U.

2012-02-08  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md (SREG_ADDR): Remove constant definition.
        (SP_ADDR): Ditto.
        (RAMPZ_ADDR): Ditto.
        * config/avr/avr.c (avr_addr_t): New typedef.
        (avr_addr): New struct to hold RAM address of SPL, SPH, RAMPZ, SREG.
        (avr_init_expanders): Initialize it.
        (expand_prologue): Use avr_addr instead of RAMPZ_ADDR, SP_ADDR,
        SREG_ADDR.
        (expand_epilogue): Ditto.
        (avr_print_operand): Ditto.
        (avr_file_start): Ditto.
        (avr_emit_movmemhi): Ditto.

2012-02-08  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/46886
        * tree-flow.h (do_while_loop_p): Declare.
        * tree-ssa-loop-ch.c (do_while_loop_p): Export.
        * tree-parloops.c (parallelize_loops): Only parallelize do-while loops.

2012-02-08  Andrew MacLeod  <amacleod@redhat.com>

        * optabs.c (expand_atomic_load): Do not assume compare_and_swap will
        always succeed for integers larger than a native word.

2012-02-08  Richard Guenther  <rguenther@suse.de>

        PR rtl-optimization/52170
        * simplify-rtx.c (simplify_plus_minus): Use CONSTM1_RTX to
        properly handle integer vector modes.

2012-02-08  Jakub Jelinek  <jakub@redhat.com>

        PR gcov-profile/52150
        * coverage.c: Include target.h.
        (build_var): Call targetm.strip_name_encoding on the assembler name.
        Change one _ into . or $ if the target allows it.
        * Makefile.in (coverage.o): Depend on $(TARGET_H).

        PR rtl-optimization/52139
        * cfgrtl.c (cfg_layout_merge_blocks): If BB_END
        is a BARRIER after emit_insn_after_noloc, move BB_END
        to the last non-BARRIER insn before it.

2012-02-07  Richard Sandiford  <rdsandiford@googlemail.com>

        PR middle-end/24306
        * config/mips/mips.c (mips_std_gimplify_va_arg_expr): New function.
        (mips_gimplify_va_arg_expr): Call it instead of
        std_gimplify_va_arg_expr.

2012-02-07  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_trampoline_init): Fix error
        message for -mno-pointers-to-nested-function.

2012-02-07  Eric Botcazou  <ebotcazou@adacore.com>

        PR middle-end/51994
        * expr.c (get_inner_reference): If there is an offset, add a negative
        bit position to it (if any).

2012-02-07  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/52060
        * combine.c (try_combine): Add i0src_copy and i0src_copy2 variables,
        copy i1src to i1src_copy whenever added_sets_2 && i1_feeds_i2_n already
        before i1dest -> i1src substitution in newpat, copy i0src to i0src_copy
        and/or i0src_copy2 when needed.

2012-02-07  Jakub Jelinek  <jakub@redhat.com>

        * gcc.c (main): Don't look for lto-wrapper or lto-wrapper
        or LTOPLUGINSONAME if have_c.

        * config/freebsd-spec.h: Add comment about what macros can be defined
        in this header.
        (LINK_EH_SPEC, LINK_SSP_SPEC, USE_LD_AS_NEEDED): Don't define here.
        * config/freebsd.h (LINK_EH_SPEC, LINK_SSP_SPEC, USE_LD_AS_NEEDED): But
        here instead.

2012-02-07  Richard Guenther  <rguenther@suse.de>

        * gimple-pretty-print.c (dump_gimple_phi): Avoid excessive
        newline in -alias dumps.

2012-02-07  Kai Tietz  <ktietz@redhat.com>
            Dave Korn  <dave.korn.cygwin@gmail.com>

        PR target/40068
        * config/i386/winnt-cxx.c (i386_pe_adjust_class_at_definition):
        Take care that typinfo gets dllexport-attribute.

2012-02-07  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/52074
        * expr.c (expand_expr_addr_expr_1): For CONSTANT_CLASS_P or CONST_DECL
        if modifier < EXPAND_SUM call force_operand on the result.

2012-02-07  Joern Rennecke  <joern.rennecke@embecosm.com>

        * config/epiphany/epiphany.h (ASM_DECLARE_FUNCTION_SIZE): Redefine,
        adding __forwarder_dst__ prefix if a forwarder_section attribute is
        present.
        (epiphany_function_type): Replace types for specific interrupts with
        EPIPHANY_FUNCTION_INTERRUPT.
        (EPIPHANY_INTERRUPT_P): Update.
        * config/epiphany/epiphany.c (epiphany_handle_forwarder_attribute):
        New static function.
        (epiphany_attribute_table) <interrupt>: min_len is 0, max_len is 9.
        <disinterrupt>: Affects type identity.
        (epiphany_handle_interrupt_attribute): Handle variable number of
        arguments.
        (epiphany_compute_function_type): Update for new
        epiphany_function_type definition.
        (epiphany_expand_prologue): Don't save (reg:DI GPR_0) for interrupt
        handlers with a longcall forwarder.
        (epiphany_start_function): Handle multiple interrupt arguments and/or
        forwarder_section attribute.

        * config/epiphany/epiphany.h (LIB_SPEC): Link libc again after
        libgloss.

2012-02-07  Alan Modra  <amodra@gmail.com>

        PR target/52107
        * config/rs6000/rs6000.c (rs6000_emit_move): Don't create DImode
        subregs of TFmode.

2012-02-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/50969
        * tree-vect-stmts.c (vect_model_store_cost): Correct statement cost to
        use vec_perm rather than vector_stmt.
        (vect_model_load_cost): Likewise.
        * config/i386/i386.c (ix86_builtin_vectorization_cost): Change cost of
        vec_perm to be the same as other vector statements.
        * config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost): Revise
        cost of vec_perm for TARGET_VSX.

2012-02-06  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52115
        * tree-sra.c (access_has_replacements_p): New function.
        (sra_modify_assign): Use it to decide whether a use is uninitialized.

2012-02-06  Patrick Marlier  <patrick.marlier@gmail.com>

        PR middle-end/52047
        * trans-mem.c (expand_call_tm): Add an assertion.
        * calls.c (flags_from_decl_or_type): Add ECF_TM_PURE to 'no vops'
        functions.

2012-02-06  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/50955
        * tree-ssa-loop-ivopts.c (get_computation_cost_at): Artificially
        raise cost of expressions that replace an address with an
        expression based on a different pointer.

2012-02-06  Jakub Jelinek  <jakub@redhat.com>

        PR target/52129
        * calls.c (mem_overlaps_already_clobbered_arg_p): If val is
        CONST_INT_P, subtract resp. add crtl->args.pretend_args_size to it.

2012-02-06  Jonathan Wakely  <jwakely.gcc@gmail.com>

        PR c++/48680
        * doc/invoke.texi (C++ Dialect Options): Use @option markup for
        -Weffc++ and specify guidelines come from second edition.

2012-02-05  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.md (sibcall_internal, sibcall_value_internal)
        (sibcall_value_multiple_internal, call_split, call_internal_direct)
        (call_direct_split, call_value_split, call_value_internal_direct)
        (call_value_direct_split, call_value_multiple_split): Use jal and
        jal_macro attributes.

2012-02-05  Richard Sandiford  <rdsandiford@googlemail.com>

        * reload1.c (reload_regs_reach_end_p): Replace with...
        (reload_reg_rtx_reaches_end_p): ...this function.
        (new_spill_reg_store): Update commentary.
        (emit_input_reload_insns): Don't clear new_spill_reg_store here.
        (emit_output_reload_insns): Check reload_reg_rtx_reaches_end_p
        before setting new_spill_reg_store.
        (emit_reload_insns): Use a separate loop to clear new_spill_reg_store.
        Use reload_reg_rtx_reaches_end_p instead of reload_regs_reach_end_p.
        Also use reload_reg_rtx_reaches_end_p when reading new_spill_reg_store
        for non-spill reload registers.

2012-02-05  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/52091
        * tree-vectorizer.h (vect_is_simple_use): Add an argument.
        (vect_is_simple_use_1): Likewise.
        * tree-vect-loop.c (vectorizable_reduction): Update calls
        to vect_is_simple_use_1 and vect_is_simple_use.
        (vectorizable_live_operation): Likewise.
        * tree-vect-patterns.c (widened_name_p,
        vect_recog_vector_vector_shift_pattern, check_bool_pattern): Likewise.
        * tree-vect-stmts.c (process_use, vect_get_vec_def_for_operand,
        vectorizable_call, vectorizable_conversion, vectorizable_assignment,
        vectorizable_shift,vectorizable_operation, vectorizable_store,
        vectorizable_load): Likewise.
        (vect_is_simple_cond): Add an argument, pass it to
        vect_is_simple_use_1.
        (vectorizable_condition): Update calls to vect_is_simple_cond,
        vect_is_simple_use.
        (vect_is_simple_use): Add an argument, the statement in which
        OPERAND is used.  Check that if OPERAND's def stmt is a double
        reduction phi node, the use is a phi node too.
        (vect_is_simple_use_1): Add an argument, pass it to
        vect_is_simple_use.
        * tree-vect-slp.c (vect_get_and_check_slp_defs): Update a call
        to vect_is_simple_use.

2012-02-04  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/52095
        * modulo-sched.c (dump_insn_locator): New function.
        (loop_canon_p, sms_schedule): Use it.

        PR rtl-optimization/52113
        * lower-subreg.c (decompose_multiword_subregs): Call recog_memoized
        even for decomposable shift/zext insns.

2012-02-03  Jakub Jelinek  <jakub@redhat.com>
            Zdenek Dvorak  <ook@ucw.cz>

        PR rtl-optimization/52092
        * loop-unswitch.c (unswitch_single_loop): Call copy_rtx_if_shared
        on get_iv_value result.

2012-02-02  Andrew Pinski  <apinski@cavium.com>

        PR middle-end/47982
        PR middle-end/43967
        * doc/libgcc.texi (__udivmoddi4/__udivmodti4): Fix documentation typo.

2012-02-02  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/48071
        * diagnostic.c (diagnostic_finish): Remove trailing newlines.

2012-02-02  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/49800
        * haifa-sched.c (sched_init): Call regstat_init_n_sets_and_refs.
        (sched_finish): Call regstat_free_n_sets_and_refs.

2012-02-02  Jia Liu  <proljc@gmail.com>

        * config/mips/mips-dspr2.md (mips_prepend): Mask operand 3 rather
        than operand 2.

2012-02-02  Jan Hubicka  <jh@suse.cz>
            Tom de Vries  <tom@codesourcery.com>

        PR middle-end/51998
        * cgraphunit.c (cgraph_analyze_function): Break cyclic aliases.
        * varpool.c (varpool_analyze_pending_decls): Likewise.

2012-02-02  Sumanth G <sumanth.gundapaneni@kpitcummins.com>
            Jayant R Sonar <jayant.sonar@kpitcummins.com>

        * config.gcc: Add cr16-* support.

        * doc/extend.texi: Document cr16 extensions.
        * doc/install.texi: Document cr16 install.
        * doc/invoke.texi: Document cr16 options.
        * doc/md.texi: Document cr16 constraints.

        * common/config/cr16/cr16-common.c: New file.
        * config/cr16/cr16.c: New file.
        * config/cr16/cr16.h: New file.
        * config/cr16/cr16.md: New file.
        * config/cr16/cr16.opt: New file.
        * config/cr16/cr16-protos.h: New file.
        * config/cr16/predicates.md: New file.
        * config/cr16/constraints.md: New file.
        * config/cr16/t-cr16: New file.

2012-02-02  Jakub Jelinek  <jakub@redhat.com>

        PR target/52086
        * config/i386/i386.md (*addqi_2 peephole with SImode addition): Check
        that operands[2] is either immediate, or q_regs_operand.

        PR tree-optimization/52073
        * tree-vect-stmts.c (vect_mark_relevant): When checking uses of
        a pattern stmt for pattern uses, ignore uses outside of the loop.

2012-02-01  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.c: Resolve all AS1 and AS2 macros.
        * config/avr/avr.h (AS1, AS2, AS2C, AS3): Remove.
        (OUT_AS1, OUT_AS2): Remove.

2012-02-01  Georg-Johann Lay  <avr@gjlay.de>

        PR rtl-optimization/51374
        * combine.c (can_combine_p): Don't allow volatile_refs_p insns
        to cross other volatile_refs_p insns.

2012-02-01  Richard Guenther  <rguenther@suse.de>

        * doc/invoke.texi (fno-inline): Clarify documentation.
        (finline-small-functions): Likewise.
        (finline-functions): Likewise.
        * common.opt (finline): Adjust comment and documentation.
        (finline-small-functions): Clarify documentation.
        (finline-functions): Likewise.
        (finline-functions-called-once): Likewise.

2012-02-01  Tristan Gingold  <gingold@adacore.com>

        * c-typeck.c (composite_type): Keep mode for pointers.

2012-01-31  Richard Sandiford  <rdsandiford@googlemail.com>

        * function.h (regno_reg_rtx): Adjust comment.
        * reginfo.c (init_reg_modes_target): Only use the previous mode
        if it fits within one register.  Remove MIPS comment.

2012-01-31  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/52058
        * combine.c (do_SUBST_LINK, SUBST_LINK): Guard with #ifndef HAVE_cc0.

2012-01-31  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/s390.md ("*ashr<mode>3_and"): Add missing z196 flag
        to srak instruction.

2012-01-31  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

        * config/arm/thumb2.md (thumb2_mov_notscc): Use MVN for true condition.

2012-01-31  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/52041
        PR bootstrap/52039
        PR target/51974
        * ipa-prop.c (detect_type_change_1): Call ao_ref_init.

2012-01-31  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/51528
        * tree-sra.c (sra_modify_assign): Avoid copy-in/out for aggregate
        assigns.

2012-01-31  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/52041
        PR bootstrap/52039
        PR target/51974
        * ree.c (add_removable_extension): Change def_map argument
        to unsigned *, store in def_map 1 + offset into *insn_list vector
        instead of pointers into the vector.
        (find_removable_extensions): Adjust caller.

2012-01-30  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md: Resolve all AS1 and AS2 macros.
        Transform all "* quoted-c-code" to { c-code }.
        Remove redundant test for "optimize" in combine patterns.
        Move (include "avr-dimode.md") to end of file.

2012-01-30  Bin Cheng  <bin.cheng@arm.com>

        PR target/51835
        * config/arm/arm.c (arm_libcall_uses_aapcs_base): Use correct ABI
        for __aeabi_d2iz/__aeabi_d2uiz with hard-float.

2012-01-30  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52028
        * tree-loop-distribution.c (ldist_gen): Properly update
        virtual SSA form.

2012-01-30  Jakub Jelinek  <jakub@redhat.com>

        PR debug/52027
        * dwarf2out.c (dwarf2out_switch_text_section): Don't call
        set_cur_line_info_table if not emitting debug info.

        PR tree-optimization/52046
        * tree-vect-patterns.c (check_bool_pattern): Give up if
        a comparison could throw.

        PR debug/52048
        * tree-ssa-tail-merge.c (local_def): Ignore debug uses.

2012-01-30  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52045
        * tree-optimize.c (execute_cleanup_cfg_post_optimizing): Update
        SSA form if cfgcleanup did anything.

2012-01-30  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52045
        * ipa-inline-transform.c (inline_transform): Call execute_fixup_cfg
        before computing final todo.

2012-01-30  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/51528
        * tree-sra.c (sra_modify_assign): Re-factor in preparation
        for PR51528 fix.

2012-01-30  Paolo Bonzini  <bonzini@gnu.org>

        * df-problems.c (df_kill_notes): Check that the use refers
        to the note under examination.

2012-01-30  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/51920
        * config/sparc/sparc.c (vector_init_fpmerge): Remove INNER_MODE
        parameter and use short-lived pseudos.
        (vector_init_faligndata): Remove INNER_MODE parameter and use loop.
        (sparc_expand_vector_init): Const-ify local variables and adjust
        calls to above functions.

2012-01-30  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.c (out_movqi_mr_r): Fix length computation.

2012-01-29  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi: Make usage of "compile time" and
        "run time"/"runtime" consistent throughout the file.

2012-01-29  Uros Bizjak  <ubizjak@gmail.com>

        * config/alpha/alpha.c (alpha_option_override): Default to
        full IEEE compliance mode for Go language.

2011-01-29  Tijl Coosemans  <tijl@coosemans.org>

        * config/freebsd-spec.h [TARGET_LIBC_PROVIDES_SSP]
        (LINK_SSP_SPEC): Define.

2012-01-28  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/51871
        * config/pa/pa.c (pa_return_addr_rtx): Add support for PA2.0 export
        stubs.

2012-01-28  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi: Correct hyphenation of "floating point",
        "double precision", and related terminology throughout the file.

2012-01-28  Jakub Jelinek  <jakub@redhat.com>

        PR target/52006
        * config/arm/arm.md (pic_add_dot_plus_eight peephole2): Use
        arm_general_register_operand predicate for operand 2 instead of
        register_operand.

2012-01-27  Ian Lance Taylor  <iant@google.com>

        PR go/47656
        * builtins.def (BUILT_IN_INIT_HEAP_TRAMPOLINE): Define.
        * builtins.c (expand_builtin_init_trampoline): Add onstack
        parameter.  Change caller.
        (expand_builtin): Handle BUILT_IN_INIT_HEAP_TRAMPOLINE.
        * tree.c (build_common_builtin_nodes): Declare
        __builtin_init_heap_trampoline.

2012-01-27  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr-protos.h (lpm_reg_rtx, lpm_addr_reg_rtx,
        tmp_reg_rtx, zero_reg_rtx, all_regs_rtx, rampz_rtx): Make global.
        * config/avr/avr.c: Ditto.
        (avr_regnames): Remove because unused.
        * config/avr/avr.md (*cpse.ne): New peephole.
        (*cpse.eq): New peephole from former cpse peepholes.

2012-01-27  Michael Eager  <eager@eagercon.com>

        * config/microblaze.c (microblaze_emit_compare): Correct
        test after pcmp instruction.

2012-01-27  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52020
        * tree-sra.c (sra_modify_assign): Do not transform clobbers.

2012-01-27  Richard Guenther  <rguenther@suse.de>

        * ipa-pure-const.c (check_stmt): Clobbers do not make a
        function non-const/pure.

2012-01-27  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/50444
        * tree-sra.c (build_ref_for_offset): Properly adjust the
        MEM_REF type for unaligned accesses.

2012-01-27  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/50444
        * expr.c (mem_ref_refers_to_non_mem_p): New function.
        (expand_assignment): Use it.  Properly handle misaligned
        bases when expanding stores to component references.
        (expand_expr_real_1): Use mem_ref_refers_to_non_mem_p and
        refactor that case.

2012-01-27  Andrey Belevantsev  <abel@ispras.ru>

        PR middle-end/51389
        * Makefile.in (tree-data-ref.o): Depend on $(PARAMS_H).
        * tree-data-ref.h (find_data_references_in_loop): Remove declaration.
        * tree-data-ref.c (find_data_references_in_loop): Make static.
        (compute_all_dependences): Change return type to bool.  Bail out
        for too many datarefs in a loop.  Move the hunk resetting the data
        dependences vector from ...
        (compute_data_dependences_for_loop): ... here.  Account for
        compute_all_dependences returning false.
        (compute_data_dependences_for_bb): Likewise.
        * params.def (PARAM_LOOP_MAX_DATAREFS_FOR_DATADEPS): New param.
        * doc/invoke.texi (loop-max-datarefs-for-datadeps): Document it.

2012-01-27  Richard Guenther  <rguenther@suse.de>

        PR middle-end/51959
        * expr.c (store_field): Use the alias-set of the scratch memory
        for storing to it.

2012-01-27  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/51990
        * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Handle
        WITH_SIZE_EXPR.
        * tree-ssa-pre.c (create_component_ref_by_pieces_1): Same.

2012-01-27  Jakub Jelinek  <jakub@redhat.com>

        PR debug/52001
        * var-tracking.c (reverse_op): Don't add any reverse operation
        if V already has any constant locations.

2012-01-27  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi: Correct usage of "command line" (noun)
        vs "command-line" (adjective) throughout.

2012-01-27  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi (Language Independent Options): Move
        -Wcoverage-mismatch blurb from here....
        (Warning Options): ...to here.

2012-01-27  Peter Bergner  <bergner@vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_option_override_internal):
        Set rs6000_always_hint to false for 476.

2012-01-27  Matthias Klose  <doko@ubuntu.com>

        * gcc.c (add_sysrooted_prefix): Remove trailing dir separator from
          system root.
        * incpath.c (add_standard_paths): Likewise.

2012-01-27  Richard Henderson  <rth@redhat.com>

        * config/m68k/m68k.c (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
        * config/m68k/sync.md (atomic_test_and_set): Rename from
        sync_test_and_setqi and adjust the operands.
        (atomic_test_and_set_1): Rename from sync_test_and_setqi_1
        and unconditionally enable.

2012-01-27  Richard Henderson  <rth@redhat.com>

        * config/sparc/sparc.c (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
        * config/sparc/sync.md (atomic_test_and_set): Only handle QImode.
        (ldstub): Rename from ldstubqi.
        (ldstub<I24MODE>): Remove.

2012-01-27  Richard Henderson  <rth@redhat.com>

        * target.def (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
        * c-cppbuiltin.c (cpp_atomic_builtins): Define
        __GCC_ATOMIC_TEST_AND_SET_TRUEVAL.
        * doc/tm.texi.in (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): Add doc hook.
        * doc/tm.texi: Rebuild.

2012-01-27  Richard Henderson  <rth@redhat.com>

        * optabs.c (gen_atomic_test_and_set): Remove default.
        (maybe_emit_atomic_test_and_set): Use maybe_expand_insn.

2012-01-26  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/51978
        * ree.c (make_defs_and_copies_lists): Change set_pat type to const_rtx.
        (combine_reaching_defs): Likewise.
        (struct re_info): Remove.
        (add_removable_extension): Remove x and data arguments,
        add insn, insn_list and def_map.  Use the arguments directly
        instead of using struct re_info.
        (find_removable_extensions): Don't call add_removable_extension
        through note_stores, instead just call it with single_set
        result if non-NULL.
        (find_and_remove_re): Pass curr_cand->expr instead of
        PATTERN (curr_cand->insn) as set_pat argument to combine_reaching_defs.

2012-01-26  Michael Matz  <matz@suse.de>

        PR tree-optimization/46590
        * cfgexpand.c: Revert last change (r183305).
        * gimplify.c (gimplify_bind_expr): Add clobbers for all non-gimple
        regs.
        * tree-eh.c (cleanup_empty_eh): Try to optimize clobbers before
        checking for emptiness.

2012-01-26  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/51895
        * expr.c (expand_expr_real_1): Handle BLKmode MEM_REF of
        non-addressable non-BLKmode base correctly.

2012-01-26  Michael Matz  <matz@suse.de>

        PR tree-optimization/48794
        * tree-eh.c (remove_unreachable_handlers_no_lp): Don't remove
        regions referenced from RESX/EH_DISPATCH.

2012-01-26  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/s390.h: Make BRANCH_COST an option.
        * config/s390/s390.opt: New option -mbranch-cost.

2012-01-26  Richard Henderson  <rth@redhat.com>

        Revert 2012-01-24 change:
        * trans-mem.c (requires_barrier): Do not instrument thread local
        variables and emit save/restore for them.

2012-01-25  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/51986
        * sched-deps.c (sched_get_condition_with_rev_uncached): Don't test
        for pat == 0.

2012-01-25  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.c (mips_small_data_pattern_1): Don't process
        ASM_OPERANDS.

2012-01-25  Georg-Johann Lay  <avr@gjlay.de>

        PR target/49868
        Rename __pgm to __flash.
        Rename __pgm1 to __flash1.
        Rename __pgm2 to __flash2.
        Rename __pgm3 to __flash3.
        Rename __pgm4 to __flash4.
        Rename __pgm5 to __flash5.
        Rename __pgmx to __memx.
        * doc/extend.texi (AVR Named Address Spaces)
        Rename address space names as indicated above.
        * config/avr/avr.c (avr_addrspace): Ditto.

        * config/avr/avr-protos.h
        (avr_mem_pgmx_p): Rename to avr_mem_memx_p.
        (avr_mem_pgm_p): Rename to avr_mem_flash_p.
        * config/avr/predicates.md: Ditto.
        * config/avr/avr.c Ditto, and
        (avr_decl_pgmx_p): Rename to avr_decl_memx_p.
        (avr_decl_pgm_p): Rename to avr_decl_flash_p.

        * config/avr/avr.h (ADDR_SPACE_PGM): Rename to ADDR_SPACE_FLASH.
        (ADDR_SPACE_PGM1): Rename to ADDR_SPACE_FLASH1.
        (ADDR_SPACE_PGM2): Rename to ADDR_SPACE_FLASH2.
        (ADDR_SPACE_PGM3): Rename to ADDR_SPACE_FLASH3.
        (ADDR_SPACE_PGM4): Rename to ADDR_SPACE_FLASH4.
        (ADDR_SPACE_PGM5): Rename to ADDR_SPACE_FLASH5.
        (ADDR_SPACE_PGMX): Rename to ADDR_SPACE_MEMX.
        * config/avr/avr.c: Ditto.
        * config/avr/avr.md: Ditto.

2012-01-25  Jason Merrill  <jason@redhat.com>

        PR c++/51992
        * tree.c (find_decls_types_in_node): Walk gimple_call_fntype.

2012-01-25  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/51987
        * tree-data-ref.c (get_references_in_stmt): Handle references in
        non-volatile GIMPLE_ASM.

2012-01-25  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-sccvn.c (vn_reference_eq): Also compare if both
        bases are dereferenced.

2012-01-25  Andrey Belevantsev  <abel@ispras.ru>

        PR rtl-optimization/48374
        * sel-sched-ir.h (get_all_loop_exits): Check for zero successors.

2012-01-25  Andrey Belevantsev  <abel@ispras.ru>

        * tree-predcom.c (tree_predictive_commoning_loop): Bail out when
        compute_data_dependences_for_loop returns false.
        * tree-parloops.c (loop_parallel_p): Likewise.

2012-01-25  Richard Guenther  <rguenther@suse.de>

        * tree.h (get_pointer_alignment_1): Declare.
        * builtins.c (get_pointer_alignment_1): New function.
        (get_pointer_alignment): Use it.

2012-01-25  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        PR rtl-optimization/48308
        * combine.c (enum undo_kind): Add UNDO_LINKS.
        (struct undo): Add member l to other_contents and where.
        (do_SUBST_LINK): New.
        (SUBST_LINK): New.
        (try_combine): Handle LOG_LINKS for the dummy i1 case.
        (undo_all): Handle UNDO_LINKS.

2012-01-25  Richard Henderson  <rth@redhat.com>

        * optabs.c (maybe_emit_atomic_test_and_set): Allow non-QImode
        mem inputs.

2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>

        * optabs.c (gen_atomic_test_and_set): Use each argument.

2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips-ps-3d.md (mips_addr_ps, reduc_splus_v2sf)
        (mips_cvt_pw_ps, mips_cvt_ps_pw, mips_mulr_ps, mips_cabs_cond_<fmt>)
        (mips_cabs_cond_4s, mips_cabs_cond_ps, bc1any4t, bc1any4f, bc1any2t)
        (bc1any2f, mips_rsqrt1_<fmt>, mips_rsqrt2_<fmt>, mips_recip1_<fmt>)
        (mips_recip2_<fmt>): Require TARGET_MIPS3D rather than
        TARGET_PAIRED_SINGLE_FLOAT.

2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>

        * doc/rtl.texi (MEM_IN_STRUCT_P, MEM_SCALAR_P): Delete.
        (in_struct, return_val): Remove MEM documentation.
        * rtl.h (rtx_def): Remove MEM meanings from in_struct and return_val.
        (MEM_IN_STRUCT_P, MEM_SCALAR_P): Delete.
        (MEM_COPY_ATTRIBUTES): Remove references to MEM_IN_STRUCT_P
        and MEM_SCALAR.
        * emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
        * cfgexpand.c (add_alias_set_conflicts): Likewise.
        * expr.c (store_field): Likewise.
        * function.c (assign_stack_temp_for_type): Likewise.
        * ifcvt.c (noce_try_cmove_arith): Likewise.
        * reload1.c (reload): Likewise.
        * config/alpha/alpha.c (alpha_set_memflags_1): Likewise.
        (alpha_set_memflags): Likewise.
        * config/m32c/m32c.c (m32c_immd_dbl_mov): Nullify.

2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>

        * rtl.h (true_dependence, canon_true_dependence): Remove varies
        parameter.
        * alias.c (fixed_scalar_and_varying_struct_p): Delete.
        (true_dependence_1, write_dependence_p, may_alias_p): Don't call it.
        (true_dependence_1, true_dependence, canon_true_dependence): Remove
        varies parameter.
        * cselib.c (cselib_rtx_varies_p): Delete.
        (cselib_invalidate_mem): Update call to canon_true_dependence.
        * dse.c (record_store, check_mem_read_rtx): Likewise.
        (scan_reads_nospill): Likewise.
        * cse.c (check_dependence): Likewise.
        (cse_rtx_varies_p): Delete.
        * expr.c (safe_from_p): Update call to true_dependence.
        * ira.c (validate_equiv_mem_from_store): Likewise.
        (memref_referenced_p): Likewise.
        * postreload-gcse.c (find_mem_conflicts): Likewise.
        * sched-deps.c (sched_analyze_2): Likewise.
        * store-motion.c (load_kills_store): Likewise.
        * config/frv/frv.c (frv_registers_conflict_p_1): Likewise.
        * gcse.c (mems_conflict_for_gcse_p): Likewise.
        (compute_transp): Update call to canon_true_dependence.

2012-01-25  Richard Henderson  <rth@redhat.com>

        * optabs.c (CODE_FOR_atomic_test_and_set): Provide default.
        (maybe_emit_atomic_test_and_set): New.
        (expand_sync_lock_test_and_set): Use it.
        (expand_atomic_test_and_set): Likewise.
        * doc/extend.texi (__atomic_test_and_set): Adjust the docs to match
        the implementation; clarify implementation defined details.
        * doc/md.texi (atomic_test_and_set): Document.

2012-01-25  Richard Henderson  <rth@redhat.com>

        * config/sparc/predicates.md (zero_or_v7_operand): Use match_code.

2012-01-25  Richard Henderson  <rth@redhat.com>

        PR target/51968
        * config/arm/arm.c (neon_split_vcombine): Emit deleted note
        to effect no-op split.

2012-01-24  Aldy Hernandez  <aldyh@redhat.com>

        PR lto/51698
        * builtin-types.def: (BT_CONST_DOUBLE_PTR): New.
        (BT_FN_VOID_PTR_CONST_PTR_SIZE): New.
        (BT_FN_VOID_PTR_INT_SIZE): New.
        (BT_FN_UINT_UINT_VAR): Remove.
        (BT_FN_UINT32_UINT32_VAR): New.
        (BT_FN_DOUBLE_VPTR): Remove.
        (BT_FN_DOUBLE_CONST_DOUBLE_PTR): New.

        * gtm-builtins.def (_ITM_abortTransaction): Set return type to void.
        (_ITM_changeTransactionMode): Same.
        (_ITM_memmoveRtWt): Change return type to void.
        (_ITM_memcpyRtWt): Same.
        (_ITM_memsetW): Same.
        (_ITM_RaRD): Change types to double.
        (_ITM_RD): Same.
        (_ITM_RaWD): Same.
        (_ITM_RfWD): Same.

        * builtins.def (DEF_TM_BUILTIN): Set BOTH_P to true.

2012-01-24  Aldy Hernandez  <aldyh@redhat.com>
            Patrick Marlier  <patrick.marlier@gmail.com>

        * trans-mem.c (requires_barrier): Do not instrument thread local
        variables and emit save/restore for them.

2012-01-24  Jason Merrill  <jason@redhat.com>

        PR c++/51812
        * cgraphunit.c (cgraph_decide_is_function_needed): Don't always
        output static aliases.

2012-01-24  Jakub Jelinek  <jakub@redhat.com>

        PR driver/47249
        * common.opt (-pie, -shared, pie, shared): Change from Common to
        Driver.
        * gcc.c (display_help): Display help for -pie and -shared.

2012-01-24  Georg-Johann Lay  <avr@gjlay.de>

        PR target/49868
        * doc/extend.texi (AVR Named Address Spaces): Move sample code up.
        Remove note on size/offset limitation.
        (AVR Variable Attributes): Add example how to read data located
        with progmem.  Refer to named address spaces.
        * doc/invoke.texi (AVR Options): Fix typo.

2012-01-24  Richard Guenther  <rguenther@suse.de>

        Forward-port to trunk
        2010-09-21  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/45678
        * expr.c (expand_expr_real_1) <case VIEW_CONVERT_EXPR>: If
        op0 isn't sufficiently aligned and there is movmisalignM
        insn for mode, use it to load op0 into a temporary register.

2012-01-24  Jakub Jelinek  <jakub@redhat.com>

        PR target/51957
        * target.def (const_not_ok_for_debug_p): New hook.
        * doc/tm.texi.in (TARGET_CONST_NOT_OK_FOR_DEBUG_P): New hook
        documentation.
        * doc/tm.texi: Regenerated.
        * dwarf2out.c (const_ok_for_output_1): If
        targetm.const_not_ok_for_debug_p returns true, fail.
        * config/rs6000/rs6000.c (rs6000_const_not_ok_for_debug_p): New
        function.
        (TARGET_CONST_NOT_OK_FOR_DEBUG_P): Redefine.

2012-01-23  Kai Tietz  <ktietz@redhat.com>

        PR target/51900
        * config/i386/predicates.md (symbolic_operand): Allow
        UNSPEC_PCREL as PIC expression for lea.
        * config/i386/winnt.c (i386_pe_binds_local_p): Reworked.
        * config/i386/i386.c (ix86_delegitimize_address): Handle
        UNSPEC_PCREL for none-MEM, too.

2012-01-23  Aldy Hernandez  <aldyh@redhat.com>

        * trans-mem.c (ipa_tm_create_version): Set externally_visible.
        (ipa_tm_create_version_alias): Same.

2012-01-23  Uros Bizjak  <ubizjak@gmail.com>

        PR libitm/51830
        * builtin-types.def (BT_FN_UINT_UINT_VAR): New.
        * gtm-builtins.def (BUILT_IN_TM_START): Declare as BT_FN_UINT_UINT_VAR.

2012-01-23  Aldy Hernandez  <aldyh@redhat.com>
            Patrick Marlier  <patrick.marlier@gmail.com>
            Iain Sandoe  <developer@sandoe-acoustics.co.uk>

        PR lto/51916
        * lto-wrapper.c (run_gcc): Pass the LTO section name to
        simple_object_start_read.

2012-01-23  Richard Guenther  <rguenther@suse.de>


        PR tree-optimization/51895
        * tree-sra.c (decide_one_param_reduction): Avoid sub-optimal
        parameter decomposition into BLKmode components.

2012-01-23  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-structalias.c (intra_create_variable_infos): Do not create
        fake variables for restrict-qualified pointers whose pointed-to type
        contains a placeholder.

2012-01-23  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/51949
        * ipa-split.c (execute_split_functions): Do not split malloc functions.

2012-01-23  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/51933
        * ree.c (transform_ifelse): Return true right away if dstreg is
        already wider or equal to cand->mode.
        (enum ext_modified_kind, struct ext_modified, ext_state): New types.
        (make_defs_and_copies_lists): Remove defs_list and copies_list
        arguments, add state argument, just truncate state->work_list
        instead of always allocating and freeing the vector.  Assert that
        get_defs succeeds instead of returning 2.  Changed return type to bool.
        (merge_def_and_ext): Add state argument.  If SET_DEST doesn't
        have ext_src_mode, see if it has been modified already with the
        right kind of extension and has been extended before from the
        ext_src_mode.  If SET_DEST is already wider or equal to cand->mode,
        just return true.  Remember the original mode in state->modified array.
        (combine_reaching_defs): Add state argument.  Don't allocate and
        free here def_list, copied_list and vec vectors, instead just
        VEC_truncate the vectors in *state.  Don't handle outcome == 2 here.
        (find_and_remove_re): Set DF_DEFER_INSN_RESCAN df flag.
        Add state variable, clear vectors in it, initialize state.modified
        if needed.  Free all the vectors at the end and state.modified too.
        Don't skip a candidate if the extension expression has been modified.

2012-01-22  Douglas B Rupp  <rupp@gnat.com>

        PR target/47096
        * config.gcc: (i[34567]86-*-interix3*): Remove from obsolete
         configurations. Change triplet to i[34567]86-*-interix[3-9]*.
        (extra_options) interix.opt -> i386/interix.opt"
        (extra_objs):Add winnt-stubs.o
        * configure.ac: Add interix to target_os .comm on PE check.
        * configure: Regenerate.
        * config/interix3.h: Delete and move bits to..
        * config/interix.h: Delete and move bits to..
        * config/i386/i386-interix3.h: Delete and move bits to..
        * config/i386/i386-interix.h: ..here.
        (TARGET_CPU_DEFAULT): Remove redefinition.
        (TARGET_ASM_CONSTRUCTOR): Undefine.
        (SUBTARGET_SWITCHES): Define for ms-bitfields.
        (TARGET_OS_CPP_BUILTINS): Remove __OPENNT. Add __declspec.
        (PTRDIFF_TYPE): Define.
        (LONG_DOUBLE_TYPE_SIZE): Define.
        (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Define.
        (SUBTARGET_OVERRIDE_OPTIONS): Remove.
        (TARGET_SECTION_TYPE_FLAGS): Define.
        (ASM_DECLARE_FUNCTION_NAME): Define.
        (ASM_OUTPUT_EXTERNAL): Define.
        (ASM_OUTPUT_EXTERNAL_LIBCALL): Define.
        (ASM_OUTPUT_ALIGNED_BSS): Define.
        (PCC_BITFIELD_TYPE_MATTERS): Define.
        (USE_CONST_SECTION): Define.
        (SUBTARGET_ENCODE_SECTION_INFO): Remove.
        (TARGET_ASM_FUNCTION_RODATA_SECTION): Remove.
        (SUPPORTS_ONE_ONLY): Remove.
        (I386_PE_STRIP_ENCODING): Define.
        * config/interix.opt: Delete and move bits to..
        * config/i386/interix.opt: ..here. New.
        (mpe-aligned-commons): Add.
        * config/i386/t-interix: Add copyright header.
        (winnt-stubs.o): Add rule.

2012-01-22  Jason Merrill  <jason@redhat.com>

        PR c++/51832
        * varpool.c (varpool_analyze_pending_decls): Copy DECL_EXTERNAL
        for extra name aliases.

2012-01-22  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/51924
        * ree.c (combine_set_extension): Improve debugging message.
        (combine_reaching_defs): Likewise.
        (get_defs): Rename confusingly named variable.
        (find_and_remove_re): Skip a candidate if the extension expression has
        been modified.

2012-01-21  Robert Millan  <rmh@gnu.org>
            Gerald Pfeifer  <gerald@pfeifer.com>

        * config/kfreebsd-gnu.h (GNU_USER_DYNAMIC_LINKERX32): New macro.
        (GNU_USER_DYNAMIC_LINKER): Adjust indentation.

2012-01-20  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/51914
        * tree-vect-stmts.c (vectorizable_conversion): For
        cvt_type && modifier == WIDEN, put temporary with cvt_type
        at the beginning of vec_dsts and set vec_dest to temporary
        with vectype_out.

2012-01-20  Eric Botcazou  <ebotcazou@adacore.com>

        * cfgrtl.c (rtl_dump_bb): Do not dump insns for {ENTRY|EXIT}_BLOCK.

2011-01-20  Tijl Coosemans  <tijl@coosemans.org>

        * config/i386/i386.c: Fix checks for !TARGET_MACHO.
        * config/rs6000/rs6000.c: Likewise.

2012-01-20  Jakub Jelinek  <jakub@redhat.com>

        PR target/51915
        * config/arm/arm.c (arm_count_output_move_double_insns): Call
        output_move_double on a copy of operands array.

2012-01-20  Cary Coutant  <ccoutant@google.com>
            Dodji Seketeli  <dodji@redhat.com>

        PR debug/45682
        * dwarf2out.c (copy_declaration_context): Return ref to parent
        of declaration DIE, if necessary.
        (remove_child_or_replace_with_skeleton): Add new parameter; update
        caller.  Place skeleton DIE under parent DIE of original declaration.
        Move call to copy_declaration_context to here ...
        (break_out_comdat_types): ... from here.

2012-01-20  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        PR rtl-optimization/51856
        * reload.c (find_reloads_subreg_address): Set the address_reloaded
        flag to reloaded.

2012-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        PR target/51819
        * config/arm/arm.c (arm_print_operand): Correct output of alignment
        hints for neon loads and stores.

2012-01-20  Georg-Johann Lay  <avr@gjlay.de>

        PR target/49868
        PR target/50887
        * doc/extend.texi (Named Address Spaces): Split into subsections.
        (AVR Named Address Spaces): New subsection.
        (M32C Named Address Spaces): New subsection.
        (RL78 Named Address Spaces): New subsection.
        (SPU Named Address Spaces): New subsection.
        (Variable Attributes): New anchor "AVR Variable Attributes".
        (AVR Variable Attributes): Rewrite and avoid wording
        "address space" in this context.
        * doc/invoke.texi (AVR Options): Rewrite and add documentation
        for -maccumulate-args, -mbranch-cost=, -mrelax, -mshort-calls.
        (AVR Built-in Macros): New subsubsection therein.
        * doc/md.texi (AVR constraints): Remove "C04", "R".

2012-01-20  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/51903
        * tree-ssa-pre.c (eliminate): Properly purging of EH edges
        when removing stmts.

2012-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        PR target/50313
        * config/arm/arm.c (arm_load_pic_register): Use
        gen_pic_load_addr_unified. Delete calls to gen_pic_load_addr_32bit
        , gen_pic_add_dot_plus_eight and gen_pic_add_dot_plus_four.
        (arm_pic_static_addr): Likewise.
        (arm_rtx_costs_1): Adjust cost for UNSPEC_PIC_UNIFIED.
        (arm_note_pic_base): Handle UNSPEC_PIC_UNIFIED.
        * config/arm/arm.md (UNSPEC_PIC_UNIFIED): Define.
        (pic_load_addr_unified): New.

2012-01-20  Andrey Belevantsev  <abel@ispras.ru>

        PR target/51106
        * function.c (instantiate_virtual_regs_in_insn): Use
        delete_insn_and_edges when removing a wrong asm insn.

2012-01-19  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/40761
        * ira-int.h (struct ira_loop_tree_node): Add comment for member loop.
        Add new member loop_num.
        (IRA_LOOP_NODE_BY_INDEX): Modify the check.
        (ira_build): Remove the parameter.

        * ira.c (ira_print_disposition): Use loop_num instead of loop->num.
        (ira.c): Do not build CFG loops for one region allocation.  Remove
        argument from ira_build call.

        * ira-build.c (init_loop_tree_node): New function.
        (create_loop_tree_nodes): Use it.  Separate the case when CFG
        loops are not built.
        (more_one_region_p): Check current_loops.
        (finish_loop_tree_nodes): Separate the case when CFG loops are not
        built.
        (add_loop_to_tree): Process loop equal to NULL too.
        (form_loop_tree): Separate the case when CFG loops are not built.
        Use explicitly number for the root.
        (rebuild_regno_allocno_maps, create_loop_tree_node_allocnos): Add
        an assertion.
        (ira_print_expanded_allocno, loop_compare_func): Use loop_num
        instead of loop->num.
        (mark_loops_for_removal): Ditto.  Use loop_num instead of loop->num.
        (mark_all_loops_for_removal): Ditto.
        (remove_unnecessary_regions): Separate the case when CFG loops
        are not built.
        (ira_build): Remove the parameter.  Use explicit number of regions
        when CFG loops are not built.

        * ira-color.c (print_loop_title): Separate the case for the root node.
        Use loop_num instead of loop->num.
        (move_spill_restore): Use loop_num instead of loop->num.

        * ira-emit.c (setup_entered_from_non_parent_p): Add an assertion.
        (change_loop): Ditto.
        (change_loop): Use loop_num instead of loop->num.

        * ira-lives.c (process_bb_node_lives): Ditto.

        * ira-costs.c (print_allocno_costs, find_costs_and_classes): Ditto.

        * ira-conflicts.c (print_allocno_conflicts): Ditto.

2012-01-19  Jakub Jelinek  <jakub@redhat.com>

        PR libmudflap/40778
        * tree-mudflap.c (mf_artificial): New function.
        (execute_mudflap_function_ops, execute_mudflap_function_decls,
        mx_register_decls, mudflap_enqueue_decl): Use it.

        PR target/51876
        * config/arm/neon.md (*neon_vswp<mode>): Fix up operand
        numbers in the insn pattern.

2012-01-19  Michael Matz  <matz@suse.de>

        PR tree-optimization/46590
        * cfgexpand.c (add_scope_conflicts_1): New old_conflicts argument,
        use it in remembering which conflicts we already created.
        (add_scope_conflicts): Adjust call to above, (de)allocate helper
        bitmap.

2012-01-19  Aldy Hernandez  <aldyh@redhat.com>

        PR lto/51280
        * lto-wrapper.c (run_gcc): Pass -fgnu_tm on.
        (merge_and_complain): Same.

2012-01-19  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/50237
        * config/initfini-array.h: Guard content of the header
        with #ifdef HAVE_INITFINI_ARRAY.
        * configure.ac: Move gcc_AC_INITFINI_ARRAY much later into the file.
        Add initfini-array.h to tm_file here.
        * acinclude.m4 (gcc_AC_INITFINI_ARRAY): For non-ia64 do a linker test.
        * config.gcc: Don't add initfini-array.h to tm_file here.
        * configure: Regenerated.

2012-01-19  Andrey Belevantsev  <abel@ispras.ru>

        PR rtl-optimization/51505
        * df-problems.c (df_kill_notes): New parameter live. Update comment.
        Remove REG_EQUAL/REG_EQUIV notes referring to dead registers.
        (df_note_bb_compute): Update the call to df_kill_notes.

2012-01-18  Aldy Hernandez  <aldyh@redhat.com>

        * trans-mem.c (requires_barrier): Remove call to is_global_var.

2012-01-18  Richard Guenther  <rguenther@suse.de>

        * tree-ssa.c (useless_type_conversion_p): Remove special-casing
        of conversions to void *.

2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
            Richard Sandiford  <rdsandiford@googlemail.com>

        PR middle-end/50325
        PR middle-end/51192
        * optabs.h (simplify_expand_binop): Declare.
        * optabs.c (simplify_expand_binop): Make global.
        * expmed.c (store_bit_field_1): Use simplify_expand_binop on big
        endian targets if the source cannot be exactly covered by word
        mode chunks.

2012-01-17  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/51872
        * hard-reg-set.h (struct hard_reg_set_container): New type.
        * target.h (struct hard_reg_set_container): Forward declare.
        * target.def (set_up_by_prologue): New target hook.
        * doc/tm.texi.in (TARGET_SET_UP_BY_PROLOGUE): Document it.
        * doc/tm.texi: Regenerated.
        * function.c (thread_prologue_and_epilogue_insns): Change
        set_up_by_prologue HARD_REG_SET into struct hard_reg_set_container.
        Call targetm.set_up_by_prologue on it.
        * config/rs6000/rs6000.c (rs6000_set_up_by_prologue): New function.
        (TARGET_SET_UP_BY_PROLOGUE): Redefine to it.

2012-01-17  Nick Clifton  <nickc@redhat.com>

        * config/rx/rx.c (rx_can_use_simple_return): New function.
        * config/rx/rx-protos.h (rx_can_use_simple_return): Prototype.
        * config/rx/rx.md (return): Predicate on rx_can_use_simple_return.

2012-01-17  Richard Guenther  <rguenther@suse.de>

        PR middle-end/51782
        * expr.c (expand_assignment): Take address-space information
        from the address operand of MEM_REF and TARGET_MEM_REF.
        (expand_expr_real_1): Likewise.

2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * ira.c (do_reload): Make sure ira_dump_file is re-set if no
        reload dump is requested.

2012-01-17  Aldy Hernandez  <aldyh@redhat.com>

        PR other/51165
        * trans-mem.c (requires_barrier): Call may_be_aliased.

2012-01-17  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/51877
        * tree-ssa-tail-merge.c (gimple_equal_p): Don't return true whenever
        call arguments and fndecls compare equal, instead return false if they
        don't.  Return true only if lhs1 and lhs2 are either both NULL, or
        both SSA_NAMEs that are valueized the same, or they satisfy
        operand_equal_p.

2012-01-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * configure.ac (gcc_cv_target_dl_iterate_phdr): Only check on
        Solaris 11+.
        * configure: Regenerate.

2012-01-16  Jan Hubicka  <jh@suse.cz>

        PR c/12245
        PR c++/14179
        * convert.c (convert_to_integer): Use fold_convert for
        converting an INTEGER_CST to integer type.

2012-01-16  Jason Merrill  <jason@redhat.com>

        PR c++/14179
        * vec.c (vec_gc_o_reserve_1): Use ggc_round_alloc_size.

2012-01-16  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/51860
        * config/s390/s390.c (s390_chunkify_start): Don't skip
        call insns followed by NOTE_INSN_CALL_ARG_LOCATION note.  Skip
        NOTE_INSN_VAR_LOCATION and NOTE_INSN_CALL_ARG_LOCATION notes.
        If insn is followed by NOTE_INSN_VAR_LOCATION or
        NOTE_INSN_CALL_ARG_LOCATION notes, insert jump after all those notes.
        Don't use location of note insns.

        PR tree-optimization/51865
        * tree-inline.c (tree_function_versioning): Call remap_decl
        on DECL_RESULT whenever it has VOID_TYPE_P type.

2012-01-15  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.c (mips16_build_call_stub): Don't use a stub
        for calls to locally-binding MIPS16 functions if only the return
        type uses float regs.

2012-01-15  Chung-Lin Tang  <cltang@codesourcery.com>
            Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips-protos.h (SYMBOL_FORCE_TO_MEM): Delete.
        (SYMBOL_32_HIGH): Likewise.
        (mips_output_tls_reloc_directive): Declare.
        * config/mips/mips.h (PIC_FUNCTION_ADDR_REGNUM): Move to mips.md.
        (mips_use_pcrel_pool_p, mips_lo_relocs, mips_hi_relocs): Declare.
        * config/mips/mips.c (mips_use_pcrel_pool_p): New variable.
        (mips_lo_relocs, mips_hi_relocs): Make extern.
        (mips16_stub_function): Move up file.
        (mips_classify_symbol): Remove SYMBOL_FORCE_TO_MEM handling.
        (mips_symbolic_constant_p): Likewise.  Remove SYMBOL_32_HIGH too.
        (mips_symbol_insns_1): Likewise.  Check mips_use_pcrel_pool_p.
        (mips_cannot_force_const_mem): Use mips_use_pcrel_pool_p instead of
        SYMBOL_FORCE_TO_MEM.  Only check mips_tls_symbol_ref_1 if it's false.
        (mips_get_tp): Add MIPS16 support.
        (mips_legitimize_tls_address): Remove MIPS16 sorry().
        Generalize DTPREL and TPREL handling.
        (mips_init_relocs): Initialize mips_use_pcrel_pool_p.
        Add MIPS16 TLS support.
        (mips_output_tls_reloc_directive): New function.
        (mips16_rewrite_pool_refs): Ignore UNSPEC_TLS_GET_TPs.
        * config/mips/predicates.md (symbolic_operand_with_high)
        (tls_reloc_operand): New predicates.
        (force_to_mem_operand): Use mips_use_pcrel_pool_p.
        * config/mips/mips.md (UNSPEC_UNSHIFTED_HIGH): New unspec.
        (PIC_FUNCTION_ADDR_REGNUM): Moved from mips.h.
        (*unshifted_high): New instruction.  Use it for MIPS16 high splitter.
        (consttable_tls_reloc, tls_get_tp_mips16_<mode>): New patterns.
        (*tls_get_tp_mips16_call_<mode>): Likewise.

2012-01-15  Uros Bizjak  <ubizjak@gmail.com>

        PR rtl-optimization/51821
        * recog.c (peep2_find_free_register): Determine clobbered registers
        from insn pattern.

2012-01-14  Denis Chertykov  <chertykov@gmail.com>

        PR target/50925
        * config/avr/avr-protos.h: Revert change of 2012-01-09.
        * config/avr/avr.c: Likewise.
        * config/avr/avr.h: Likewise.

2012-01-13  Ian Lance Taylor  <iant@google.com>

        PR c++/50012
        * tree.h (TYPE_QUALS): Add cast to int.
        (TYPE_QUALS_NO_ADDR_SPACE): Likewise.

2012-01-13  Ian Lance Taylor  <iant@google.com>

        * ipa-cp.c (ipa_get_indirect_edge_target): Add typecasts when
        comparing param_index to VEC_length result.

2012-01-13  Steven Bosscher  <steven@gcc.gnu.org>

        * c-decl.c: Do not include tree-mudflap.h
        * tree-optimize.c: Likewise.
        * Makefile.in: Update dependencies.

2012-01-13  Richard Guenther  <rguenther@suse.de>

        PR middle-end/8081
        * gimplify.c (gimplify_modify_expr_rhs): For calls with a
        variable-sized result always use RSO.

2012-01-12  DJ Delorie  <dj@redhat.com>

        * cfgexpand.c (convert_debug_memory_address): Allow any valid
        pointer type, not just the default pointer type.

2012-01-09  Richard Henderson  <rth@redhat.com>
            Denis Chertykov  <chertykov@gmail.com>

        PR target/50925
        * config/avr/avr-protos.h (avr_hard_regno_nregs): Declare.
        * config/avr/avr.c (avr_can_eliminate): Simplify.
        (avr_initial_elimination_offset): Likewise.
        (avr_prologue_setup_frame): Use hard_frame_pointer_rtx.
        (expand_epilogue): Likewise.
        (avr_legitimize_address): Gut.
        (avr_legitimize_reload_address): Use hard_frame_pointer_rtx.
        (avr_hard_regno_nregs): New.
        (avr_hard_regno_ok): Allow only Pmode for arg and frame_pointers.
        (avr_regno_mode_code_ok_for_base_b): Handle arg and frame pointers.
        * config/avr/avr.h (FIXED_REGISTERS): Adjust arg pointer,
        add soft frame pointer.
        (CALL_USED_REGISTERS): Likewise.
        (REG_CLASS_CONTENTS): Likewise.
        (REGISTER_NAMES): Likewise.
        (HARD_REGNO_NREGS): Use avr_hard_regno_nregs.
        (HARD_FRAME_POINTER_REGNUM): New.
        (FRAME_POINTER_REGNUM): Use soft frame pointer.
        (ELIMINABLE_REGS): Eliminate from the soft frame pointer,
        remove the HARD_FRAME_POINTER self-elimination.

2012-01-12  Georg-Johann Lay  <avr@gjlay.de>

        PR target/51756
        * config/avr/avr.c (avr_encode_section_info): Test for absence of
        DECL_EXTERNAL when checking for initializers of progmem variables.

2012-01-12  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/51799
        * tree-vect-patterns.c (vect_recog_over_widening_pattern): Check
        that the last operation is a type demotion.

2012-01-12  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*zero_extendsidi2_rex64): Correct movl template.
        (x86_shift<mode>_adj_1): Remove operand constraint from operand 3.

2012-01-11  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/51796
        * combine.c (distribute_notes): If i3 is a noreturn call,
        allow old_size to be equal to args_size and make sure the
        noreturn call gets REG_ARGS_SIZE note.
        * expr.c (fixup_args_size_notes): Put REG_ARGS_SIZE notes
        on noreturn calls even when the delta is 0.

2012-01-11  Nathan Sidwell  <nathan@acm.org>

        * gcov.c (STRING_SIZE): Remove.
        (generate_results): Erase annotations for source files with no
        coverage information.
        (read_line): New.
        (output_lines): Use it.

2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>

        * gimple.h (gimplify_body): Remove first argument.
        * gimplify.c (copy_if_shared): Add DATA argument.  Do not create the
        pointer set here, instead just pass DATA to walk_tree.
        (unshare_body): Remove BODY_P argument and adjust.  Create the pointer
        set here and invoke copy_if_shared on the size trees of DECL_RESULT.
        (unvisit_body): Likewise, but with unmark_visited.
        (gimplify_body): Remove BODY_P argument and adjust.
        (gimplify_function_tree): Adjust call to gimplify_body.
        * omp-low.c (finalize_task_copyfn): Likewise.

2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.h (build_function_decl_skip_args): Add boolean parameter.
        (build_function_type_skip_args): Delete.
        * tree.c (build_function_type_skip_args): Make static and add
        SKIP_RETURN parameter.  Fix thinko in the handling of variants.
        (build_function_decl_skip_args): Add SKIP_RETURN parameter and
        pass it to build_function_type_skip_args.
        * cgraph.h (cgraph_function_versioning): Add boolean parameter.
        (tree_function_versioning): Likewise.
        * cgraph.c (cgraph_create_virtual_clone): Adjust call to
        build_function_decl_skip_args.
        * cgraphunit.c (cgraph_function_versioning): Add SKIP_RETURN parameter
        and pass it to build_function_decl_skip_args/tree_function_versioning.
        (cgraph_materialize_clone): Adjust call to tree_function_versioning.
        * ipa-inline-transform.c (save_inline_function_body): Likewise.
        * trans-mem.c (ipa_tm_create_version): Likewise.
        * tree-sra.c (modify_function): Ditto for cgraph_function_versioning.
        * tree-inline.c (declare_return_variable): Remove always-true test.
        (tree_function_versioning): Add SKIP_RETURN parameter.  If the function
        returns non-void and SKIP_RETURN, create a void-typed RESULT_DECL.
        * ipa-split.c (split_function): Skip the return value for the split
        part if it doesn't return.

2012-01-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/49642
        * ipa-split.c (forbidden_dominators): New variable.
        (check_forbidden_calls): New function.
        (dominated_by_forbidden): Likewise.
        (consider_split): Check for forbidden dominators.
        (execute_split_functions): Initialize and free forbidden
        dominators info; call check_forbidden_calls.

2012-01-11  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

        * config/arm/arm.md (mov_notscc): Use MVN for false condition.

2012-01-11  Nick Clifton  <nickc@redhat.com>

        * config/rx/rx.md (return): Define pattern.

2012-01-11  Richard Guenther  <rguenther@suse.de>

        * doc/extend.texi (malloc attribute): Adjust according to
        implementation.

2012-01-10  Aldy Hernandez  <aldyh@redhat.com>
            Patrick Marlier  <patrick.marlier@gmail.com>

        PR middle-end/51516
        * trans-mem.c (get_cg_data): Traverse aliases if requested.
        (ipa_tm_scan_calls_block): Update parameters to get_cg_data.
        (ipa_tm_note_irrevocable): Same.
        (ipa_tm_scan_irr_block): Same.
        (ipa_tm_decrement_clone_counts): Same.
        (ipa_tm_scan_irr_function): Same.
        (ipa_tm_create_version_alias): Same.
        (ipa_tm_create_version): Same.
        (ipa_tm_transform_calls_redirect): Same.
        (ipa_tm_transform_calls): Same.
        (ipa_tm_transform_transaction): Same.
        (ipa_tm_execute): Same.

2012-01-10  Richard Guenther  <rguenther@suse.de>

        PR middle-end/51806
        * opts.c (common_handle_option): Handle -Werror.

2012-01-10  Andreas Schwab  <schwab@linux-m68k.org>

        * config/m68k/sync.md ("atomic_compare_and_swap<mode>_1"): Fix
        operand number.

2012-01-10  Jason Merrill  <jason@redhat.com>

        * doc/invoke.texi (C++ Dialect Options): Update -fabi-version=6
        information.

2012-01-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * configure.ac (gcc_cv_as_ix86_tlsgdplt): Check if linker
        supports R_386_TLS_GD_PLT reloc.
        (gcc_cv_as_ix86_tlsldmplt): Check if linker
        supports R_386_TLS_LDM_PLT reloc.
        * configure: Regenerate.
        * config.in: Regenerate.

2012-01-10  Georg-Johann Lay  <avr@gjlay.de>

        PR target/49868
        Extend __pgmx semantics to linearize memory.
        * config/avr/avr.md (mov<mode>): Use avr_xload_libgcc_p to
        determine if code comes inline or from libgcc.
        (MOVMEM_r_d:HI): Add "w" to constraint for better preference.
        (movmem_qi, movmem_qi): Set constraint #2 to "n".
        (movmem_qi_elpm, movmem_hi_elpm): Remove insns.
        (movmemx_qi, movmemx_hi): New insns.
        (xload_<mode>_libgcc): Rewrite to new insn condition.
        (xload_<mode>): Remove insns.
        * config/avr/avr.c (avr_out_xload): Rewrite: Only need to handle
        cases that don't satisfy avr_xload_libgcc_p().
        (avr_addr_space_convert): Allow converting in any direction.
        (avr_addr_space_subset_p): Return always true.
        (avr_xload_libgcc_p): Rewrite to fit new __pgmx semantics.
        (avr_emit_movmemhi): Ditto.
        (avr_out_lpm): No need to handle ADDR_SPACE_PGMX any more.
        (avr_out_movmem): Ditto.
        (AVR_SYMBOL_FLAG_PROGMEM): New macro.
        (AVR_SYMBOL_SET_ADDR_SPACE): New macro.
        (AVR_SYMBOL_GET_ADDR_SPACE): New macro.
        (avr_encode_section_info): Encode 'progmem' in symbol flags.
        (output_reload_in_const): Don't zero-extend any 24-bit symbols.

2012-01-10  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/50913
        * graphite-scop-detection.c (stmt_has_simple_data_refs_p):
        Require data-refs to be representable by Graphite with respect
        to any loop nest.

2012-01-10  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/constraints.md ("L"): Return true for 0xffffffff.
        * config/i386/i386.c (*anddi_1): Emit AND with 0xffffffff as MOV.

2012-01-10  Tom de Vries  <tom@codesourcery.com>

        PR rtl-optimization/51271
        * dwarf2cfi.c (scan_trace): Save and restore cur_row->reg_save when
        handling annulled branch.

2012-01-10  Richard Henderson  <rth@redhat.com>

        * config/arm/arm.c (arm_vectorize_vec_perm_const_ok,
        TARGET_VECTORIZE_VEC_PERM_CONST_OK, neon_split_vcombine, MAX_VECT_LEN,
        struct expand_vec_perm_d, arm_expand_vec_perm_1, arm_expand_vec_perm,
        arm_evpc_neon_vuzp, arm_evpc_neon_vzip, arm_evpc_neon_vrev,
        arm_evpc_neon_vtrn, arm_evpc_neon_vtbl, arm_expand_vec_perm_const_1,
        arm_expand_vec_perm_const): New.
        * config/arm/arm-protos.h: Update.
        * config/arm/neon.md (UNSPEC_VCONCAT): New.
        (*neon_vswp<VDQX>): New.
        (neon_vcombine<VDX>): Use neon_split_vcombine.
        (neon_vtbl1v16qi, neon_vtbl2v16qi, neon_vcombinev16qi): New.
        * config/arm/vec-common.md (vec_perm_const<VALL>): New.
        (vec_perm<VE>): New.

2012-01-10  Richard Henderson  <rth@redhat.com>

        * config/arm/arm.c (arm_gen_compare_reg): Add scratch argument;
        use it if reload_completed.
        (arm_legitimize_sync_memory, arm_emit, arm_insn_count, arm_count,
        arm_output_asm_insn, arm_process_output_memory_barrier,
        arm_output_memory_barrier, arm_ldrex_suffix, arm_output_ldrex,
        arm_output_strex, arm_output_it, arm_output_op2, arm_output_op3,
        arm_output_sync_loop, arm_get_sync_operand, FETCH_SYNC_OPERAND,
        arm_process_output_sync_insn, arm_output_sync_insn,
        arm_sync_loop_insns, arm_call_generator, arm_expand_sync): Remove.
        (arm_pre_atomic_barrier, arm_post_atomic_barrier): New.
        (arm_emit_load_exclusive, arm_emit_store_exclusive): New.
        (emit_unlikely_jump): New.
        (arm_expand_compare_and_swap, arm_split_compare_and_swap): New.
        (arm_split_atomic_op): New.
        * config/arm/arm-protos.h: Update.
        * config/arm/arm.h (enum arm_sync_generator_tag): Remove.
        (struct arm_sync_generator): Remove.
        * config/arm/arm.md (VUNSPEC_SYNC_COMPARE_AND_SWAP, VUNSPEC_SYNC_LOCK,
        VUNSPEC_SYNC_OP, VUNSPEC_SYNC_NEW_OP, VUNSPEC_SYNC_OLD_OP): Remove.
        (VUNSPEC_ATOMIC_CAS, VUNSPEC_ATOMIC_XCHG, VUNSPEC_ATOMIC_OP): New.
        (VUNSPEC_LL, VUNSPEC_SC): New.
        (sync_result, sync_memory, sync_required_value, sync_new_value,
        sync_t1, sync_t2, sync_release_barrier, sync_op): Remove.
        (attr length): Don't use arm_sync_loop_insns.
        (cbranch_cc, cstore_cc): Update call to arm_gen_compare_reg.
        (movsfcc, movdfcc): Likewise.
        * config/arm/constraints.md (Ua): New.
        * config/arm/prediates.md (mem_noofs_operand): New.
        (sync_compare_and_swap<QHSD>, sync_lock_test_and_set<QHSD>): Remove.
        (sync_clobber, sync_t2_reqd): Remove.
        (sync_<syncop><QHSD>, sync_nand<QHSD>): Remove.
        (sync_new_<syncop><QHSD>, sync_new_nand<QHSD>): Remove.
        (sync_old_<syncop><QHSD>, sync_old_nand<QHSD>): Remove.
        (arm_sync_compare_and_swap<SIDI>): Remove.
        (arm_sync_compare_and_swap<NARROW>): Remove.
        (arm_sync_lock_test_and_set<SIDI>): Remove.
        (arm_sync_lock_test_and_set<NARROW>): Remove.
        (arm_sync_new_<syncop><SIDI>): Remove.
        (arm_sync_new_<syncop><NARROW>): Remove.
        (arm_sync_new_nand<SIDI>): Remove.
        (arm_sync_new_nand<NARROW>): Remove.
        (arm_sync_old_<syncop><SIDI>): Remove.
        (arm_sync_old_<syncop><NARROW>): Remove.
        (arm_sync_old_nand<SIDI>): Remove.
        (arm_sync_old_nand<NARROW>): Remove.
        (*memory_barrier): Merge arm_output_memory_barrier.
        (atomic_compare_and_swap<QHSD>): New.
        (atomic_compare_and_swap<NARROW>_1): New.
        (atomic_compare_and_swap<SIDI>_1): New.
        (atomic_exchange<QHSD>): New.
        (cas_cmp_operand, cas_cmp_str): New.
        (atomic_op_operand, atomic_op_str): New.
        (atomic_<syncop><QHSD>, atomic_nand<QHSD>): New.
        (atomic_fetch_<syncop><QHSD>, atomic_fetch_nand<QHSD>): New.
        (atomic_<syncop>_fetch<QHSD>, atomic_nand_fetch<QHSD>): New.
        (arm_load_exclusive<NARROW>): New.
        (arm_load_exclusivesi, arm_load_exclusivedi): New.
        (arm_store_exclusive<QHSD>): New.

2012-01-09  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Add DF
        reload patterns if -mvsx-scalar-memory.

        * config/rs6000/vsx.md (vsx_xscvspdp): Allow xscvspdp to be
        generated, even -mno-vsx-scalar-double was used.
        (vsx_xscvdpsp_scalar): Likewise.
        (vsx_xscvspdp_scalar2): Likewise.

2012-01-09  Tom de Vries  <tom@codesourcery.com>
            Andrew Pinski  <apinski@cavium.com>

        PR debug/51471
        * reorg.c (fill_slots_from_thread): Don't speculate
        frame-related insns.

2012-01-09  Richard Sandiford  <rdsandiford@googlemail.com>

        * sched-int.h (bb_note): Move to...
        * basic-block.h: ...here.
        * haifa-sched.c (bb_note): Move to...
        * cfgrtl.c: ...here.
        * function.c (next_block_for_reg): New function.
        (move_insn_for_shrink_wrap): Likewise.
        (prepare_shrink_wrap): Rewrite to use the above.

2012-01-09  Aldy Hernandez  <aldyh@redhat.com>

        * gimple.c (is_gimple_non_addressable): Remove.
        * gimple.h: Remove is_gimple_non_addressable.
        * gimplify.c (gimplify_modify_expr_rhs): Use is_gimple_reg instead of
        is_gimple_non_addressable.
        * trans-mem.c (expand_assign_tm): Same.

2012-01-09  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/51775
        * tree-ssa-sccvn.c (visit_use): Value-number throwing stmts.
        * tree-ssa-pre.c (eliminate): Properly fixup EH info.

2012-01-09  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

        * config/arm/arm-cores.def (cortex-a15): Use cortex_a15_tune for
        tuning parameters.
        * config/arm/arm.c (arm_cortex_a15_tune): New static variable.

2012-01-09  Richard Guenther  <rguenther@suse.de>

        * tree-streamer-out.c (write_ts_optimization): Fix spelling.

2012-01-08  Jan Hubicka  <jh@suse.cz>

        PR tree-optimize/51680
        * ipa-inline-analyss.c (evaluate_properties_for_edge): Fix condition
        on when known_vals needs to be computed; cleanup.

2012-01-08  Jan Hubicka  <jh@suse.cz>

        PR tree-optimize/51694
        * ipa-cp.c (ipa_get_indirect_edge_target): Add bounds checks.

2012-01-08  Jonathan Wakely  <jwakely.gcc@gmail.com>

        * doc/cpp.texi (Predefined Macros): __STRICT_ANSI__ is defined
        for -std=c++98 and -std=c++11 too.

2012-01-08  Chung-Lin Tang  <cltang@codesourcery.com>

        * cfgloop.c (cancel_loop): Add free() of bbs array.

2012-01-07  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/51600
        * ipa-inline-analysis.c (estimate_edge_devirt_benefit): Disable code
        that benefits small functions.

2012-01-07  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (want_inline_small_function_p): Fix formating.

2012-01-07  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/51680
        * ipa-inline.c (want_inline_small_function_p): Be more lax on functions
        whose inlining reduce unit size.

2012-01-07  Alexandre Oliva  <aoliva@redhat.com>

        PR bootstrap/51725
        * cselib.c (new_elt_loc_list): Promote addr_list to canonical node.
        Add canonical node to containing_mem chain after the non-canonical
        one, even if there weren't any locs to propagate.
        (remove_useless_values): Keep only canonical values.
        (add_mem_for_addr, cselib_lookup_mem): Canonicalize addr.
        (cselib_invalidate_mem): Likewise.  Ensure v is canonical, and
        canonicalize mem_chain elements that are not discarded.

2012-01-06  Jakub Jelinek  <jakub@redhat.com>

        PR target/47333
        * cgraphunit.c (cgraph_optimize): Call output_weakrefs
        before emitting functions.

        PR gcov-profile/50127
        * bb-reorder.c (partition_hot_cold_basic_blocks): Call
        clear_aux_for_blocks.

2012-01-06  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/51746
        * cselib.c (cselib_hash_rtx): Hash incoming VALUEs too.

2012-01-06  Arnaud Charlet  <charlet@adacore.com>

        * c-decl.c (ext_block): Moved up.
        (collect_all_refs, for_each_global_decl): Take ext_block into account.

2012-01-06  Han Shen  <shenhan@google.com>

        Translate built-in include paths for sysroot.
        * Makefile.in (gcc_gxx_include_dir_add_sysroot): New.
        (PREPROCESSOR_DEFINES): Define GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT.

        * cppdefault.c (cpp_include_defaults): Replace hard coded "0" with
        GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT for "add_sysroot" field.

        * configure.ac (AC_SUBST): Add gcc_gxx_include_dir_add_sysroot to
        control whether sysroot should be prepended to gxx include dir.

        * configure: Regenerate.

2012-01-06  Torvald Riegel  <triegel@redhat.com>

        PR rtl-optimization/51771
        * builtin-attrs.def (ATTR_RETURNS_TWICE, ATTR_TM_NOTHROW_RT_LIST): New.
        * gtm-builtins.def (BUILT_IN_TM_START): Add returns-twice attrib.

2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>

        PR tree-optimization/51315
        * tree-sra.c (tree_non_aligned_mem_for_access_p): New predicate.
        (build_accesses_from_assign): Use it instead of tree_non_aligned_mem_p.

2012-01-05  Uros Bizjak  <ubizjak@gmail.com>

        PR target/51681
        * config/ia64/ia64.c (expand_vec_perm_shrp): Use correct operands
        for shrp pattern.  Correctly handle and fixup shift variable.
        Return false when shift > nelt for BYTES_BIG_ENDIAN target.

2012-01-05  Jakub Jelinek  <jakub@redhat.com>

        PR debug/51762
        * calls.c (emit_call_1): For noreturn calls force a REG_ARGS_SIZE
        note when !ACCUMULATE_OUTGOING_ARGS.

2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-vrp.c (extract_range_from_binary_expr_1): Remove duplicated
        condition.
        (extract_range_from_unary_expr_1): Avoid useless computations.

2012-01-05  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/51767
        * cfgrtl.c (force_nonfallthru_and_redirect): Force addition
        of jump_block and add an extra edge for degenerated asm gotos.

        PR middle-end/51768
        * stmt.c (check_unique_operand_names): Don't ICE during error
        reporting if i is from labels chain.

        PR middle-end/44777
        * profile.c (branch_prob): Split bbs that have exit edge
        and need a fake entry edge too.

2012-01-05  Jan Hubicka  <jh@suse.cz>

        PR middle-end/49710
        * cfgloopmanip.c (remove_path): Walk loop hiearchy upwards when
        unlooping loops.

2012-01-05  Richard Guenther  <rguenther@suse.de>

        PR lto/50490
        * tree-streamer-out.c (write_ts_optimization): New function.
        (streamer_write_tree_body): Call it.
        * tree-streamer-in.c (lto_input_ts_optimization): New function.
        (streamer_read_tree_body): Call it.
        * lto-streamer-out.c (lto_is_streamable): Handle OPTIMIZATION_NODE.

2012-01-05  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/51761
        * gimple.h (struct gimplify_ctx): Add in_cleanup_point_expr field.
        * gimplify.c (gimplify_cleanup_point_expr): Save and set
        in_cleanup_point_expr before gimplify_stmt call and restore it
        afterwards.
        (gimplify_target_expr): Don't add {CLOBBER} cleanup if
        in_cleanup_point_expr is false.

2012-01-05  Richard Guenther  <rguenther@suse.de>

        PR middle-end/51764
        * common.opt (Wmudflap, fmudflap, fmudflapth, fmudflapir): Move
        to c.opt.
        * toplev.c (process_options): Reject combining mudflap and LTO.
        * tree-nomudflap.c (nogo): Use sorry instead of internal_error.

2012-01-05  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/51760
        * tree-ssa-ccp.c (likely_value): Drop UNDEFINED to CONSTANT,
        not VARYING.
        (bit_value_unop): Handle UNDEFINED operands.
        (bit_value_binop): Likewise.

2012-01-05  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.c (avr_replace_prefix): Remove.
        (avr_asm_named_section): Use ACONCAT instead of avr_replace_prefix.
        (avr_asm_function_rodata_section): Ditto.
        (avr_asm_select_section): Ditto.

2012-01-05  Marcus Shawcroft  <marcus.shawcroft@arm.com>

        * reload.c (find_reloads): Adjust LABEL_NUSES on REG_LABEL_OPERAND
        insertion.

2012-01-05  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/51648
        * tree-cfg.c (need_fake_edge_p): Return true also for noreturn
        calls that have any non-fake successor edges.

        PR debug/51746
        * var-tracking.c (add_stores): For COND_EXEC allow oval to be NULL.

2012-01-04  Eric Botcazou  <ebotcazou@adacore.com>

        PR tree-optimization/51624
        * tree-sra.c (build_ref_for_model): When replicating a chain of
        COMPONENT_REFs, stop as soon as the offset would become negative.

2012-01-04  Jakub Jelinek  <jakub@redhat.com>

        PR debug/51695
        * dwarf2out.c (output_loc_list): For now drop >= 64KB expressions
        in .debug_loc on the floor.

2012-01-04  Andrew Pinski  <apinski@cavium.com>

        * doc/invoke.texi (-march=@var{arch}): Add octeon+ and octeon2.

2012-01-04  Andrew Pinski  <apinski@cavium.com>
            Adam Nemet  <anemet@caviumnetworks.com>

        * config/mips/mips.md (size): Add SI and DI.
        (SIZE): New mode attribute.
        (U): New code attribute.
        * config/mips/mips-dsp.md (mips_lbux): Use gen_mips_lbux_extsi.
        (mips_lbux_<mode>): Delete.
        (mips_l<SHORT:size><u>x_ext<GPR:mode>_<P:mode>): New pattern.
        (mips_lhx): Use gen_mips_lhx_extsi.
        (mips_lhx_<mode>): Delete.
        (mips_lwx): Delete.
        (mips_l<size>x): New expand.
        (mips_lwx_<mode>): Delete.
        (mips_l<GPR:size>x_<P:mode>): New pattern.
        (*mips_lw<u>x_<P:mode>_ext): Likewise.
        * config/mips/mips-ftypes.def: Add DI f(POINTER, SI) function type.
        * config/mips/mips.c (mips_lx_address_p): New function.
        (mips_rtx_costs <case MEM>): Call mips_lx_address_p.
        (dsp64): New availability predicate.
        (mips_builtins): Add an entry for __builtin_mips_ldx.
        * config/mips/mips.h (ISA_HAS_LBX): New define.
        (ISA_HAS_LBUX): Likewise.
        (ISA_HAS_LHX): Likewise.
        (ISA_HAS_LHUX): Likewise.
        (ISA_HAS_LWX): Likewise.
        (ISA_HAS_LWUX): Likewise.
        (ISA_HAS_LDX): Likewise.
        * doc/extend.texi (__builtin_mips_ldx): Document.

2012-01-04  Tristan Gingold  <gingold@adacore.com>

        * config/vms/xm-vms.h (HOST_LONG_FORMAT, HOST_PTR_PRINTF): Define
        when long pointers are used.
        * config.build (*-*-*vms*): Handle all OpenVMS targets.
        (alpha64-dec-*vms*, alpha*-dec-*vms*)
        (ia64-hp-*vms*): Remove.
        * config/vms/xm-vms64.h: Delete.

2012-01-04  Aldy Hernandez  <aldyh@redhat.com>

        PR middle-end/51472
        * trans-mem.c (expand_assign_tm): Handle TM_MEMMOVE loads correctly.

2012-01-04  Aldy Hernandez  <aldyh@redhat.com>

        * opts.c (finish_options): Remove duplicate sorry.

2012-01-04  Aldy Hernandez  <aldyh@redhat.com>

        PR middle-end/51696
        * trans-mem.c (diagnose_tm_1): Display indirect calls with no name
        correctly.

2012-01-04  Richard Guenther  <rguenther@suse.de>

        PR middle-end/51750
        * tree.c (size_low_cst): New function.
        * tree.h (size_low_cst): Declare.
        * fold-const.c (fold_comparison): Use it to extract the low
        part of the POINTER_PLUS_EXPR offset.

2012-01-04  Georg-Johann Lay  <avr@gjlay.de>

        Fix clearing ZERO_REG
        * config/avr/avr.md (cc): Add alternative "ldi".
        (movqi_insn): Use it in cc attribute.
        * config/avr/avr.c (notice_update_cc): Handle CC_LDI.
        (output_reload_in_const): Use CLR to move 0 to ZERO_REG.
        (output_reload_insisf): Use ZERO_REG to pre-clear register.

2012-01-04  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * configure: Regenerate.

2012-01-04  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/49651
        * tree-ssa-structalias.c (type_can_have_subvars): New function.
        (var_can_have_subvars): Use it.
        (get_constraint_for_1): Only consider subfields if there can be any.

2012-01-03  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/51725
        * cselib.c (new_elt_loc_list): When moving locs from one cselib_val
        to its new canonical_cselib_val and the cselib_val was in
        first_containing_mem chain, but the canonical_cselib_val was not,
        add the latter into the chain.
        (cselib_invalidate_mem): Compare canonical_cselib_val of
        addr_list chain elt with v.

        PR pch/51722
        * dwarf2out.c (dwarf2out_start_source_file, dwarf2out_define,
        dwarf2out_undef): Allocate e.info using ggc_strdup instead
        of xstrdup.
        (output_macinfo_op): Don't ggc_strdup fd->filename.
        (optimize_macinfo_range): Allocate grp_name using XALLOCAVEC,
        then ggc_strdup it.  Don't free inc->info or cur->info.
        (output_macinfo): Don't free ref->info or file->info.

2012-01-03  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/51269
        * tree-vect-loop-manip.c (set_prologue_iterations): Make
        first_niters a pointer.
        (slpeel_tree_peel_loop_to_edge): Likewise.
        (vect_do_peeling_for_loop_bound): Update call to
        slpeel_tree_peel_loop_to_edge.
        (vect_gen_niters_for_prolog_loop): Don't compute wide_prolog_niters
        here.  Remove it from the parameters list.
        (vect_do_peeling_for_alignment): Update calls and compute
        wide_prolog_niters.

2012-01-03  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/51070
        * tree-loop-distribution.c (stmt_has_scalar_dependences_outside_loop):
        Properly handle calls.

2012-01-03  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/51692
        * tree-ssa-dce.c (eliminate_unnecessary_stmts): Do not remove
        the LHS of allocation stmts.

2012-01-03  Olivier Hainque  <hainque@adacore.com>

        * system.h: Prior to #define, #undef fopen and freopen unconditionally.

2012-01-03  Olivier Hainque  <hainque@adacore.com>

        * collect2.c (main): In AIX specific computations for vector
        insertions, use CONST_CAST2 to cast from char ** to const char **.

2012-01-03  Richard Guenther  <rguenther@suse.de>

        PR debug/51650
        * dwarf2out.c (dwarf2out_finish): Always create a DIE for
        the context of a limbo DIE when it does not already exist.

2012-01-03  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/51719
        * value-prof.c (gimple_ic): When indirect call isn't noreturn,
        but direct call is, clear direct call's lhs and don't add fallthrough
        edge from dcall_bb to join_bb and PHIs.

2012-01-03  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/s390.md ("*cmp<mode>_ccs"): Fix comment mentioning
        the instructions emitted by the pattern.
        ("*TDC_insn_<mode>"): Add comment.

2012-01-03  Richard Guenther  <rguenther@suse.de>

        PR middle-end/51730
        * fold-const.c (fold_comparison): Properly canonicalize
        tree offset and HOST_WIDE_INT bit position.

2012-01-02  Uros Bizjak  <ubizjak@gmail.com>

        * config/ia64/ia64.c (expand_vec_perm_broadcast): Use correct
        operands for extzv pattern.

2012-01-02  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/51725
        * cselib.c (add_mem_for_addr): Call canonical_cselib_val
        on mem_elt first.

2012-01-02  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi (-flto and related options): Copy-edit.

2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.md (loadgp_newabi_<mode>): Add missing earlyclobber.

2012-01-02  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (*avx2_gatherdi<mode>_3, *avx2_gatherdi<mode>_4):
        New patterns.

2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>

        * expr.h (move_by_pieces_ninsns): Declare.
        * expr.c (move_by_pieces_ninsns): Make external.
        * config/mips/mips-protos.h (mips_move_by_pieces_p): Declare.
        (mips_store_by_pieces_p): Likewise.
        * config/mips/mips.h (MOVE_BY_PIECES_P): Call mips_move_by_pieces_p.
        (STORE_BY_PIECES_P): Likewise mips_store_by_pieces_p.
        * config/mips/mips.c (mips_move_by_pieces_p): New function.
        (mips_store_by_pieces_p): Likewise.

2012-01-02  Jakub Jelinek  <jakub@redhat.com>

        * passes.c (register_one_dump_file): Free full_name.

        * reload1.c (reload): Don't allocate reg_max_ref_width here.
        (calculate_elim_costs_all_insns): Free offsets_at and
        offsets_known_at at the end and clear the pointers.

2012-01-02  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.opt (-mbranch-cost): Fix double definition of
        this option introduced in r180739.

2012-01-02  Georg-Johann Lay  <avr@gjlay.de>

        PR target/51345
        * config.gcc (tm_file target=avr]): Add avr/avr-multilib.h
        (tmake_file target=avr): Add avr/t-multilib.

        * config/avr/avr-c.c (avr_cpu_cpp_builtins): Use AVR_HAVE_8BIT_SP
        to built-in define __AVR_HAVE_8BIT_SP__, __AVR_HAVE_16BIT_SP__.
        * config/avr/genmultilib.awk: New file.
        * config/avr/t-multilib: New auto-generated file.
        * config/avr/multilib.h: New auto-generated file.
        * config/avr/t-avr (AVR_MCUS): New variable.
        (genopt.sh): Use it.
        (s-mlib): Depend on t-multilib.
        (t-multilib, multilib.h): New dependencies.
        (s-avr-mlib): New rule to build t-multilib, multilib.h from AVR_MCUS.
        (MULTILIB_OPTIONS): Remove.
        (MULTILIB_MATCHES): Remove.
        (MULTILIB_DIRNAMES): Remove.
        (MULTILIB_EXCEPTIONS): Remove:
        * config/avr/genopt.sh: Don't use hard coded file name;
        pass AVR_MCUS from t-avr instead.

2012-01-02  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.c (avr_out_ashrpsi3): Fix "case 31" to "case 23".

2012-01-02  Georg-Johann Lay  <avr@gjlay.de>

        Implement light-weight DImode support.
        * config/avr/avr-dimode.md: New file.
        * config/avr/avr.md: Include it.
        (adjust_len): Add plus64, compare64.
        (HIDI): Remove code iterator.
        (code_stdname): New code attribute.
        (rotx, rotsmode): Remove DI.
        (rotl<mode>3, *rotw<mode>, *rotb<mode>): Use HISI instead of HIDI
        as code iterator.
        * config/avr/avr-protos.h (avr_have_dimode): New.
        (avr_out_plus64, avr_out_compare64): New.
        * config/avr/avr.c (avr_out_compare): Handle DImode.
        (avr_have_dimode): New variable definition and initialization.
        (avr_out_compare64, avr_out_plus64): New functions.
        (avr_out_plus_1): Use simplify_unary_operation to negate xval.
        (adjust_insn_length): Handle ADJUST_LEN_COMPARE64, ADJUST_LEN_PLUS64.
        (avr_compare_pattern): Skip DImode comparisons.

2012-01-02  Revital Eres  <revital.eres@linaro.org>

        * ddg.c (def_has_ccmode_p): New function.
        (add_cross_iteration_register_deps,
        create_ddg_dep_from_intra_loop_link): Call it.

2012-01-02  Richard Guenther  <rguenther@suse.de>

        PR other/51679
        * invoke.texi (fassociative-math): Remove spurious paranthesis.

2012-01-01  Jakub Jelinek  <jakub@redhat.com>

        * gcc.c (process_command): Update copyright notice dates.
        * gcov.c (print_version): Likewise.
        * gcov-dump.c (print_version): Likewise.
        * mips-tfile.c (main): Likewise.
        * mips-tdump.c (main): Likewise.

2012-01-01  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/51704
        * tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Check that
        a use is inside the basic block or loop before accessing its vect info.

2012-01-01  Jan Hubicka  <jhjh@suse.cz>

        PR rtl-optimization/51069
        * cfgloopmanip.c (remove_path): Removing path making irreducible
        region unconditional makes BB part of the region.

2012-01-01  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/51683
        * tree-ssa-propagate.c (substitute_and_fold): Don't optimize away
        calls with side-effects.
        * tree-ssa-ccp.c (ccp_fold_stmt): Likewise.
\f
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