re PR target/51244 ([SH] Inefficient conditional branch and code around T bit)

[thirdparty/gcc.git] / gcc / ChangeLog

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
Copyright (C) 2012 Free Software Foundation, Inc.

Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.