* dwarf2asm.c (dw2_asm_output_offset): Mark 'base' argument

[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog

2006-03-17  Steven Bosscher  <stevenb.gcc@gmail.com>

        * dwarf2asm.c (dw2_asm_output_offset): Mark 'base' argument
        with ATTRIBUTE_UNUSED.

2006-03-17  Alexandre Oliva  <aoliva@redhat.com>

        * dwarf2out.c (dwarf2out_stack_adjust): Always track the stack
        pointer, instead of assuming it is possible to derive the
        correct args size from a call insn.

2006-03-16  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

        * rtl.h (CONST_INT_P): Define.
        * config/vax/vax.c (print_operand_address): Use CONST_INT_P()
        instead of GET_CODE(x) == CONST_INT.
        (vax_rtx_costs): Likewise.
        (vax_output_int_move): Likewise.
        (vax_output_int_add): Likewise.
        (legitimate_constant_address_p): Likewise.
        (index_term_p): Likewise.
        * config/vax/vax.h (PRINT_OPERAND): Likewise.
        * config/vax/vax.md (and<mode>3): Likewise.
        (ashrsi3): Likewise.
        (extv): Likewise.
        (movstricthi): Likewise.
        (movstrictqi): Likewise.
        (rotrsi3): Likewise.
        (five unnamed insns): Likewise.

2006-03-16  Geoffrey Keating  <geoffk@apple.com>

        * doc/tm.texi (SDB and DWARF): Add extra parameter to
        ASM_OUTPUT_DWARF_OFFSET.  Use @var to indicate metavariables.
        * dwarf2asm.h (dw2_asm_output_offset): Add section parameter.
        * dwarf2asm.c (dw2_asm_output_offset): Add base section parameter.
        Pass to ASM_OUTPUT_DWARF_OFFSET.
        * dwarf2out.c (debug_frame_section): New.
        (output_call_frame_info): Use debug_frame_section.  Pass it to
        dw2_asm_output_offset.
        (output_die): Pass appropriate section to dw2_asm_output_offset.
        (output_compilation_unit_header): Likewise.
        (output_pubnames): Likewise.
        (output_aranges): Likewise.
        (enum dw_val_class): Break dw_val_class_lbl_offset into
        dw_val_class_lineptr and dw_val_class_macptr.
        (add_AT_lbl_offset): Delete.
        (add_AT_lineptr): New.
        (add_AT_macptr): New.
        (AT_lbl): Expect a lineptr or macptr.
        (print_die): Handle dw_val_class_lineptr and dw_val_class_macptr.
        (attr_checksum): Likewise.
        (same_dw_val_p): Likewise.
        (size_of_die): Likewise.
        (value_format): Likewise.
        (output_die): Likewise.
        (dwarf2out_finish): Call add_AT_lineptr and add_AT_macptr instead of
        add_AT_lbl_offset.
        * config/i386/cygming.h (ASM_OUTPUT_DWARF_OFFSET): Add extra parameter.
        * config/i386/i386.c (x86_file_start): Call darwin_file_start.
        * config/darwin-protos.h (darwin_file_start): New.
        (darwin_asm_output_dwarf_offset): New.
        * config/ia64/ia64.h (ASM_OUTPUT_DWARF_OFFSET): Add extra parameter.
        * config/rs6000/rs6000.c (rs6000_darwin_file_start): Call
        darwin_file_start.
        * config/darwin.c (darwin_emit_unwind_label): Don't output label
        if not EH section; simplify.
        (darwin_file_start): New.
        (darwin_asm_output_dwarf_offset): New.
        * config/darwin.h (DEBUG_FRAME_SECTION): In __DWARF segment,
        mark as 'debug'.
        (DEBUG_INFO_SECTION): Likewise.
        (DEBUG_ABBREV_SECTION): Likewise.
        (DEBUG_ARANGES_SECTION): Likewise.
        (DEBUG_MACINFO_SECTION): Likewise.
        (DEBUG_LINE_SECTION): Likewise.
        (DEBUG_LOC_SECTION): Likewise.
        (DEBUG_PUBNAMES_SECTION): Likewise.
        (DEBUG_STR_SECTION): Likewise.
        (DEBUG_RANGES_SECTION): Likewise.
        (FRAME_BEGIN_LABEL): Must start with 'L' in debug section.
        (ASM_OUTPUT_DWARF_OFFSET): New.

2006-03-16  Joseph S. Myers  <joseph@codesourcery.com>

        * config.gcc (tm_defines): Always add to previous value rather
        than replacing it.

2006-03-16  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/predicates.md (splittable_const_int_operand): New,
        split from move_operand.
        (splittable_symbolic_operand): New.
        (move_operand): Add commentary.  Use splittable_const_int_operand.
        Inline mips_atomic_symbolic_constant_p.
        * config/mips/mips.md: Add combine splitters for handling moves
        of splittable_const_int_operands and splittable_symbolic_operands.
        * config/mips/mips-protos.h (mips_atomic_symbolic_constant_p): Delete.
        (mips_split_symbol): Declare.
        (mips_move_integer): Declare.
        * config/mips/mips.c (mips_split_p): Make global.
        (TARGET_MIN_ANCHOR_OFFSET): Override default.
        (TARGET_MAX_ANCHOR_OFFSET): Likewise.
        (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
        (TARGET_USE_ANCHORS_FOR_SYMBOL_P): Likewise.
        (mips_offset_within_object_p): Handle block symbols.
        (mips_atomic_symbolic_constant_p): Delete.
        (mips_cannot_force_const_mem): Return false for constants that
        mips_legitimize_move can handle.
        (mips_use_blocks_for_constant_p): New function.
        (mips_split_symbol): Make global.
        (mips_move_integer): Likewise.  Add a temporary register argument.
        (mips_legitimize_const_move): Use splittable_const_int_operand and
        splittable_symbolic_operand.
        (mips_use_anchors_for_symbol_p): New function.
        * config/mips/mips.h: Protect externs with !USED_FOR_TARGET.
        (mips_split_p): Declare.  

2006-03-16  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (mips64*-*-linux*): Keep existing tm_defines.
        (mips*-*-linux*): Likewise.

2006-03-16  Roger Sayle  <roger@eyesopen.com>
            Daniel Speyer  <dspeyer@wam.umd.edu>

        PR middle-end/18259
        * tree-dump.c (dump_real): New function.
        (dequeue_and_dump) <REAL_CST>: Use it to dump FP constants.
        * Makefile.in (REAL_H): New macro for dependencies on real.h.
        (tree-dump.o): Add $(REAL_H) to the dependencies.

2006-03-16  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/21781
        * real.c (real_from_string): If the mantissa is zero, don't bother
        parsing the exponent as the result should always be zero.

2006-03-16  Andreas Krebbel  <krebbel1@de.ibm.com>

        * simplify-rtx.c (simplify_plus_minus): Simplify within CONST terms.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>

        * config/ia64/ia64.c (stops_p): Added explicit initialization.
        (ia64_first_cycle_multipass_dfa_lookahead_guard_spec,
        ia64_h_i_d_extended, ia64_set_sched_flags, ia64_speculate_insn,
        ia64_needs_block_p, ia64_gen_check, ia64_sched_init_global,
        ia64_sched_finish_global): New static functions to implement
        hooks from gcc_target.sched.
        (spec_check_no, max_uid, pending_data_specs): New static variables.
        (ia64_mode_to_int, ia64_gen_spec_insn, ia64_spec_check_p,
        ia64_spec_check_src_p): New static functions.
        (ia64_adjust_cost): Renamed to ia64_adjust_cost_2.
        (TARGET_SCHED_ADJUST_COST): Removed.
        (TARGET_SCHED_ADJUST_COST_2, TARGET_SCHED_INIT_GLOBAL,
        TARGET_SCHED_FINISH_GLOBAL, TARGET_SCHED_H_I_D_EXTENDED,
        TARGET_SCHED_SPECULATE_INSN, TARGET_SCHED_NEEDS_BLOCK_P,
        TARGET_SCHED_GEN_CHECK,
        TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
        TARGET_SCHED_SET_SCHED_FLAGS): New macros.
        (update_set_flags, group_barrier_needed, set_src_needs_barrier):
        Fixed to handle speculation checks.
        (rtx_needs_barrier): Fixed to handle speculative loads and
        their checks.
        (ia64_variable_issue): Added code to count speculative loads and their
        checks.
        (ia64_first_cycle_multipass_dfa_lookahead_guard): Fixed to handle
        speculative loads.
        (enum SPEC_MODES, enum SPEC_GEN_LD_MAP, SPEC_GEN_CHECK_OFFSET):
        New enumerations.
        (SPEC_GEN_EXTEND_OFFSET, SPEC_N, SPEC_GEN_CHECK_MUTATION_OFFSET):
        New constants.
        (ia64_ld_address_bypass_p): Fixed to handle speculative loads.
        (ia64_reorg): Reset stops_p to NULL after it is freed.
        * config/ia64/ia64.md (UNSPEC_LDA, UNSPEC_LDS, UNSPEC_LDSA,
        UNSPEC_LDCCLR, UNSPEC_CHKACLR, UNSPEC_CHKS): New constants.
        (itanium_class): chk_s renamed to chk_s_i.  New constants: chk_s_f,
        chk_a.
        (data_speculative, control_speculative, check_load): New attributes.
        (mov<mode>_advanced, mov<mode>_speculative,
        mov<mode>_speculative_advanced, zero_extend<mode>di2_advanced,
        zero_extend<mode>di2_speculative,
        zero_extend<mode>di2_speculative_advanced): New patterns for
        data and control speculative loads.
        (mov<mode>_clr, zero_extend<mode>di2_clr): New patterns for
        check loads.
        (advanced_load_check_clr_<mode>, speculation_check_<mode>):
        New pattern for data and control speculation checks.
        (MODE, MODE_FOR_EXTEND, output_a, output_s, output_sa, output_c_clr,
        ld_reg_constr, ldc_reg_constr, chk_reg_constr, mem_constr,
        reg_pred_prefix, ld_class, chka_class, chks_class, attr_yes):
        Auxiliary definitions for the patterns.
        * config/ia64/itanium1.md (1_fldc, 1_fldpc, 1_ldc, 1_chk_s_f, 1_chk_a,
        1b_fldc, 1b_fldpc, 1b_ldc, 1b_chk_s_f, 1b_chk_a): New resource
        constraints.
        (1_fld, 1_fldp, 1_ld, 1b_fld, 1b_fldp, 1b_ld): Add a condition
        for speculation.
        (1_chk_s, 1b_chk_s): Renamed to 1_chk_s_i, 1b_chk_s_i.
        * config/ia64/itanium2.md (2_flda, 2_fldc, 2_fldpc, 2_ldc, 2_chk_s_f,
        2_chk_a, 2b_flda, 2b_fldc, 2b_fldpc, 2b_ldc, 2b_chk_s_f, 2b_chk_a):
        New resource constraints.
        (2_fld, 2_fldp, 2_ld, 2b_fld, 2b_fldp, 2b_ld): Add a condition
        for speculation.
        (2_chk_s, 2b_chk_s): Renamed to 2_chk_s_i, 2b_chk_s_i.
        * config/ia64/ia64.opt (msched-br-data-spec, msched-ar-data-spec,
        msched-control-spec, msched-br-in-data-spec, msched-ar-in-data-spec,
        msched-in-control-spec, msched-ldc, msched-control-ldc,
        msched-spec-verbose, msched-prefer-non-data-spec-insns,
        msched-prefer-non-control-spec-insns,
        msched-count-spec-in-critical-path): New flags to tune speculative
        scheduling.
        * doc/invoke.texi (msched-br-data-spec, msched-ar-data-spec,
        msched-control-spec, msched-br-in-data-spec, msched-ar-in-data-spec,
        msched-in-control-spec, msched-ldc, msched-control-ldc,
        msched-spec-verbose, msched-prefer-non-data-spec-insns,
        msched-prefer-non-control-spec-insns,
        msched-count-spec-in-critical-path): Document new flags.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>

        * target.h (struct spec_info_def): New opaque declaration.
        (struct gcc_target.sched): New fields: adjust_cost_2, h_i_d_extended,
        speculate_insn, needs_block_p, gen_check,
        first_cycle_multipass_dfa_lookahead_guard_spec, set_sched_flags.
        * target-def.h (TARGET_SCHED_ADJUST_COST_2,
        TARGET_SCHED_H_I_D_EXTENDED, TARGET_SCHED_SPECULATE_INSN,
        TARGET_SCHED_NEEDS_BLOCK_P, TARGET_SCHED_GEN_CHECK,
        TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
        TARGET_SCHED_SET_SCHED_FLAGS): New macros to initialize fields in
        gcc_target.sched.
        (TARGET_SCHED): Use new macros.
        * rtl.h (copy_DEPS_LIST_list): New prototype.
        * sched-int.h (struct sched_info): Change signature of new_ready field,
        adjust all initializations. New fields: add_remove_insn,
        begin_schedule_ready, add_block, advance_target_bb, fix_recovery_cfg,
        region_head_or_leaf_p.
        (struct spec_info_def): New structure declaration.
        (spec_info_t): New typedef.
        (struct haifa_insn_data): New fields: todo_spec, done_spec, check_spec,
        recovery_block, orig_pat.
        (glat_start, glat_end): New variables declaraions.
        (TODO_SPEC, DONE_SPEC, CHECK_SPEC, RECOVERY_BLOCK, ORIG_PAT):
        New access macros.
        (enum SCHED_FLAGS): New constants: SCHED_RGN, SCHED_EBB,
        DETACH_LIFE_INFO, USE_GLAT.
        (enum SPEC_SCHED_FLAGS): New enumeration.
        (NOTE_NOTE_BB_P): New macro.
        (extend_dependency_caches, xrecalloc, unlink_bb_notes, add_block,
        attach_life_info, debug_spec_status, check_reg_live): New functions.
        (get_block_head_tail): Change signature to get_ebb_head_tail, adjust
        all uses in ddg.c, modulo-sched.c, haifa-sched.c, sched-rgn.c,
        sched-ebb.c
        (get_dep_weak, ds_merge): Prototype functions from sched-deps.c .
        * ddg.c (get_block_head_tail): Adjust all uses.
        * modulo-sched.c (get_block_head_tail): Adjust all uses.
        (sms_sched_info): Initialize new fields.
        (contributes_to_priority): Removed.
        * haifa-sched.c (params.h): New include.
        (get_block_head_tail): Adjust all uses.
        (ISSUE_POINTS): New macro.
        (glat_start, glat_end): New global variables.
        (spec_info_var, spec_info, added_recovery_block_p, nr_begin_data,
        nr_be_in_data, nr_begin_control, nr_be_in_control, bb_header,
        old_last_basic_block, before_recovery, current_sched_info_var,
        rgn_n_insns, luid): New static variables.
        (insn_cost1): New function.  Move logic from insn_cost to here.
        (find_insn_reg_weight1): New function.  Move logic from
        find_insn_reg_weight to here.
        (reemit_notes, move_insn, max_issue): Change signature.
        (move_insn1): Removed.
        (extend_h_i_d, extend_ready, extend_global, extend_all, init_h_i_d,
        extend_bb): New static functions to support extension of scheduler's
        data structures.
        (generate_recovery_code, process_insn_depend_be_in_spec,
        begin_speculative_block, add_to_speculative_block,
        init_before_recovery, create_recovery_block, create_check_block_twin,
        fix_recovery_deps): New static functions to support
        generation of recovery code.
        (fix_jump_move, find_fallthru_edge, dump_new_block_header,
        restore_bb_notes, move_block_after_check, move_succs): New static
        functions to support ebb scheduling.
        (init_glat, init_glat1, attach_life_info1, free_glat): New static
        functions to support handling of register live information.
        (associate_line_notes_with_blocks, change_pattern, speculate_insn,
        sched_remove_insn, clear_priorities, calc_priorities, bb_note,
        add_jump_dependencies): New static functions.
        (check_cfg, has_edge_p, check_sched_flags): New static functions for
        consistancy checking.
        (debug_spec_status): New function to call from debugger.
        (priority): Added code to handle speculation checks.
        (rank_for_schedule): Added code to distinguish speculative instructions.
        (schedule_insn): Added code to handle speculation checks.
        (unlink_other_notes, rm_line_notes, restore_line_notes, rm_other_notes):
        Fixed to handle ebbs.
        (move_insn): Added code to handle ebb scheduling.
        (max_issue): Added code to use ISSUE_POINTS of instructions.
        (choose_ready): Added code to choose between speculative and
        non-speculative instructions.
        (schedule_block): Added code to handle ebb scheduling and scheduling of
        speculative instructions.
        (sched_init): Initialize new variables.
        (sched_finish): Free new variables.  Print statistics.
        (try_ready): Added code to handle speculative instructions.
        * lists.c (copy_DEPS_LIST_list): New function.
        * sched-deps.c (extend_dependency_caches): New function.  Move logic
        from create_dependency_caches to here.
        (get_dep_weak, ds_merge): Make global.
        * genattr.c (main): Code to output prototype for
        dfa_clear_single_insn_cache.
        * genautomata.c (DFA_CLEAR_SINGLE_INSN_CACHE_FUNC_NAME): New macros.
        (output_dfa_clean_insn_cache_func): Code to output
        dfa_clear_single_insn_cache function.
        * sched-ebb.c (target_n_insns): Remove.  Adjust all users to use
        n_insns.
        (can_schedule_ready_p, fix_basic_block_boundaries, add_missing_bbs):
        Removed.
        (n_insns, dont_calc_deps, ebb_head, ebb_tail, last_bb):
        New static variables.
        (begin_schedule_ready, add_remove_insn, add_block1, advance_target_bb,
        fix_recovery_cfg, ebb_head_or_leaf_p): Implement hooks from
        struct sched_info.
        (ebb_sched_info): Initialize new fields.
        (get_block_head_tail): Adjust all uses.
        (compute_jump_reg_dependencies): Fixed to use glat_start.
        (schedule_ebb): Code to remove unreachable last block.
        (schedule_ebbs): Added code to update register live information.
        * sched-rgn.c (region_sched_info): Initialize new fields.
        (get_block_head_tail): Adjust all uses.
        (last_was_jump): Removed.  Adjust users.
        (begin_schedule_ready, add_remove_insn, insn_points, extend_regions,
        add_block1, fix_recovery_cfg, advance_target_bb, region_head_or_leaf_p):
        Implement new hooks.
        (check_dead_notes1): New static function.
        (struct region): New fields: dont_calc_deps, has_real_ebb.
        (RGN_DONT_CALC_DEPS, RGN_HAS_REAL_EBB): New access macros.
        (BB_TO_BLOCK): Fixed to handle EBBs.
        (EBB_FIRST_BB, EBB_LAST_BB): New macros.
        (ebb_head): New static variable.
        (debug_regions, contributes_to_priority): Fixed to handle EBBs.
        (find_single_block_regions, find_rgns, find_more_rgns): Initialize
        new fields.
        (compute_dom_prob_ps): New assertion.
        (check_live_1, update_live_1): Fixed to work with glat_start instead of
        global_live_at_start.
        (init_ready_list): New assertions.
        (can_schedule_ready_p): Split update code to begin_schedule_ready.
        (new_ready): Add support for BEGIN_CONTROL speculation.
        (schedule_insns): Fixed code that updates register live information
        to handle EBBs.
        (schedule_region): Fixed to handle EBBs.
        (init_regions): Use extend_regions and check_dead_notes1.
        * params.def (PARAM_MAX_SCHED_INSN_CONFLICT_DELAY,
        PARAM_SCHED_SPEC_PROB_CUTOFF): New parameters.
        * doc/tm.texi (TARGET_SCHED_ADJUST_COST_2, TARGET_SCHED_H_I_D_EXTENDED,
        TARGET_SCHED_SPECULATE_INSN, TARGET_SCHED_NEEDS_BLOCK_P,
        TARGET_SCHED_GEN_CHECK,
        TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
        TARGET_SCHED_SET_SCHED_FLAGS): Document.
        * doc/invoke.texi (max-sched-insn-conflict-delay,
        sched-spec-prob-cutoff): Document.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>

        * sched-int.h (struct haifa_insn_data): New fields: resolved_deps,
        inter_tick, queue_index.
        (struct sched_info): Change signature of init_ready_list field.
        Adjust all initializations.
        (RESOLVED_DEPS): New access macro.
        (ready_add): Remove prototype.
        (try_ready): Add prototype.
        * sched-rgn.c (init_ready_list): Use try_ready.
        (schedule_region): Initialize
        current_sched_info->{sched_max_insns_priority, queue_must_finish_empty}.
        * sched-ebb.c (new_ready): Remove.  Adjust ebb_sched_info.
        (init_ready_list): Use try_ready.
        (schedule_ebb): Initialize current_sched_info->sched_max_insns_priority.
        * lists.c (remove_list_elem): Remove `static'.
        (remove_free_INSN_LIST_elem): New function.
        * rtl.h (remove_list_elem, remove_free_INSN_LIST_elem): Add prototypes.
        * haifa-sched.c (INTER_TICK, QUEUE_INDEX): New macros.
        (INVALID_TICK, MIN_TICK, QUEUE_SCHEDULED, QUEUE_NOWHERE, QUEUE_READY):
        New constants.
        (readyp): New variable.
        (queue_remove, ready_remove_insn, fix_inter_tick, fix_tick_ready,
        change_queue_index, resolve_dep): New static functions.
        (try_ready): New function.  Adjust callers in sched-rgn.c and
        sched-ebb.c to use it instead of ready_add.
        (clock_var): Move at the begining of file.
        (rank_for_schedule): Fix typo.
        (queue_insn): Add assertion.  Handle QUEUE_INDEX.
        (ready_lastpos): Enforce assertion.
        (ready_add): Make it static.  Handle QUEUE_INDEX.  Add new argument,
        update all callers.
        (ready_remove_first, ready_remove): Handle QUEUE_INDEX.
        (schedule_insn): Rewrite to use try_ready and resolve_dep.
        (queue_to_ready): Use free_INSN_LIST_list.
        (early_queue_to_ready): Fix typo.
        (schedule_block): Init readyp.  Move init_ready_list call after the
        initialization of clock_var.  Fix error in rejecting insn by
        targetm.sched.dfa_new_cycle.  Add call to fix_inter_tick.  Remove code
        that previously corrected INSN_TICKs.  Add code for handling
        QUEUE_INDEX.
        (set_priorities): Fix typo.
        (sched_init): Initialize INSN_TICK, INTER_TICK and QUEUE_INDEX.
        Clarify comment and code that keeps current_sched_info->next_tail
        non-null.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>

        * sched-rgn.c (extend_rgns): New static function.
        (find_rgns): Use it.
        (gather_region_statistics, print_region_statistics): New static
        functions.
        * params.def (PARAM_MAX_SCHED_EXTEND_REGIONS_ITERS): New parameter.
        * doc/invoke.texi (max-sched-extend-regions-iters): Document.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
            Andrey Belevantsev <abel@ispras.ru>

        * ddg.c (build_intra_loop_deps): Adjust add_forward_dependence call.
        * lists.c (unused_deps_list): New variable.
        (free_list): Add assertions to verify the proper distinguishing 
        between INSN_LISTs and DEPS_LISTs.
        (find_list_elem, remove_list_elem, remove_list_node): New static
        functions.
        (alloc_DEPS_LIST, free_DEPS_LIST, free_DEPS_LIST_node,
        remove_free_INSN_LIST_elem, remove_free_DEPS_LIST_elem,
        remove_free_INSN_LIST_node, remove_free_DEPS_LIST_node): New functions.
        (alloc_INSN_LIST): Assert that the list we're working on is indeed
        an INSN_LIST.
        (free_INSN_LIST_node): Likewise.
        * modulo-sched.c (current_sched_info): Initialize flags field.
        * reg-notes.def: Exchange DEP_ANTI and DEP_OUTPUT.
        * rtl.def (DEPS_LIST): Define.
        * rtl.h: Declare new functions from lists.c.
        * sched-deps.c (spec_dependency_cache): New static variable.
        (maybe_add_or_update_back_dep_1, add_back_dep): New static functions.
        (add_dependence): Change return type to void.  Move the logic to ...
        (add_or_update_back_dep_1): ... here.  Handle speculative dependencies.
        (delete_all_dependences): Add comment about forward_dependency_cache.
        Handle spec_dependency_cache.  Handle DEPS_LISTs.
        (fixup_sched_groups): Clarify the change of priority of output
        and anti dependencies.
        (sched_analyze_2): Adjust add_dependence calls to create data
        speculative dependence.
        (add_forward_dependence): Renamed to add_forw_dep, change prototype.
        Adjust all callers.  Handle DEPS_LISTS.
        (compute_forward_dependences): Use add_forw_dep.  Sort LOG_LINKs in
        presence of speculation.
        (init_dependency_caches, free_dependency_caches):
        Handle spec_dependency_cache.
        (adjust_add_sorted_back_dep, adjust_back_add_forw_dep, delete_forw_dep,
        estimate_dep_weak, get_dep_weak, ds_merge, check_dep_status):
        New static functions.
        (add_or_update_back_dep, add_or_update_back_forw_dep,
        add_back_forw_dep, delete_back_forw_dep): New functions.
        * sched-int.h (ds_t, dw_t): New typedefs.
        (struct sched_info): Add new field flags.
        (struct haifa_insn_data): Add new bitfield has_internal_dep.
        Prototype new sched-deps.c functions.
        (HAS_INTERNAL_DEP, DEP_STATUS): New access macros.
        (BITS_PER_DEP_STATUS, BITS_PER_DEP_WEAK, DEP_WEAK_MASK, MAX_DEP_WEAK,
        MIN_DEP_WEAK, NO_DEP_WEAK, UNCERTAIN_DEP_WEAK, BEGIN_DATA, BE_IN_DATA,
        BEGIN_CONTROL, BE_IN_CONTROL, BEGIN_SPEC, DATA_SPEC, CONTROL_SPEC,
        SPECULATIVE, BE_IN_SPEC, FIRST_SPEC_TYPE, LAST_SPEC_TYPE,
        SPEC_TYPE_SHIFT, DEP_TRUE, DEP_OUTPUT, DEP_ANTI, DEP_TYPES, HARD_DEP):
        New constants.
        (enum SPEC_TYPES_OFFSETS, enum DEPS_ADJUST_RESULT, enum SCHED_FLAGS):
        New enums.
        * sched-rgn.c (current_sched_info): Initialize flags field.
        (schedule_insns): Initialize current_sched_info before the sched_init
        call.
        * sched-ebb.c (current_sched_info): Initialize flags field.
        (add_deps_for_risky_insns): Use control_flow_insn_p instead of JUMP_P.
        Call add_or_update_back_dep instead of add_dependence.
        Create control speculative dependencies.
        (schedule_insns): Initialize current_sched_info before the sched_init
        call.

2006-03-16  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/linux-unwind.h (shmedia_fallback_frame_state): Set
        fs->signal_frame.
        (sh_fallback_frame_state): Likewise.

2006-03-15  Geoffrey Keating  <geoffk@apple.com>

        * config.gcc (*-*-darwin*): Don't build crt2.o for all Darwin ports.
        Do switch on default_use_cxa_atexit.
        (powerpc*-*-darwin*): Build crt2.o on powerpc.
        * config/darwin-crt3.o: New.
        * config/darwin.h (LINK_SPEC): If -shared-libgcc, make linker default
        to 10.3.  Pass '-multiply_defined suppress' if crt3.o is in use.
        (STARTFILE_SPEC): Add crt3.o when -shared-libgcc and appropriate
        OS version.
        * config/rs6000/t-darwin: Move crt2.o building to here.
        * config/rs6000/darwin.h (C_COMMON_OVERRIDE_OPTIONS): Update
        Mac OS version for using __cxa_get_exception_ptr.  Don't test versions
        of __cxa_atexit.

2006-03-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

        * config/vax/vax.c (nonindexed_address_p): Change logical negation
        from '! xxx' to '!xxx' for coding-style conformance.
        * config/vax/vax.h (PCC_BITFIELD_TYPE_MATTERS): Likewise.
        (EXTRA_CONSTRAINT): Likewise.
        * config/vax/vax.md (four unnamed insns): Likewise.
        
2006-03-15  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (minipool_pad): New.
        (add_minipool_forward_ref): Include pool alignment padding in address
        calculation.
        (push_minipool_fix): Set minipool_pad.
        (minipool_pad): Ditto.

2006-03-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

        * config/vax/vax.c (split_quadword_operands): Use MEM_P()
        instead of GET_CODE() == MEM and REG_P() instead of
        GET_CODE() == REG.
        (print_operand_address): Likewise.
        (vax_address_cost): Likewise.
        (vax_rtx_costs): Likewise.
        (vax_notice_update_cc): Likewise.
        (vax_output_int_add): Likewise.
        (INDEX_REGISTER_P): Likewise.
        (BASE_REGISTER_P): Likewise.
        (nonindexed_address_p): Likewise.
        (vax_mode_dependent_address_p): Likewise.
        * config/vax/vax.h (EXTRA_CONSTRAINT): Likewise.
        (PRINT_OPERAND): Likewise.
        * config/vax/vax.md (ashlsi3): Likewise.
        (ashlsi3): Likewise.
        (some more unnamed insns): Likewise.

2006-03-15  Kazu Hirata  <kazu@codesourcery.com>

        * tree-ssa-dce.c (EXECUTE_IF_CONTROL_DEPENDENT): Make it an
        iterator-style macro.
        (mark_control_dependent_edges_necessary): Update the use of
        EXECUTE_IF_CONTROL_DEPENDENT.

2006-03-15  J"orn Rennecke <joern.rennecke@st.com>

        * config/sh/predicates.md (cache_address_operand): Special.
        (ua_address_operand): Likewise.

2006-03-15  Zdenek Dvorak <dvorakz@suse.cz>

        * haifa-sched.c (unlink_other_notes, reemit_notes): Do not handle
        loop notes.
        * sched-deps.c (sched_analyze_insn, sched_analyze): Ditto.

2006-03-15  Andreas Schwab  <schwab@suse.de>

        * gensupport.c (identify_predicable_attribute): Don't free p_false
        when it is still in use.

2006-03-15  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config.gcc (default with_cpu setting) <sparc*-*-*>: Do not modify
        the default setting here.

2006-03-14  Steven Bosscher  <stevenb.gcc@gmail.com>

        * tree-pass.h (pass_cfg): Remove.
        * alias.c (rest_of_handle_cfg, pass_cfg): Remove.
        * passes.c (pass_cfg): Don't run it.

2006-03-14  Kazu Hirata  <kazu@codesourcery.com>

        * Makefile.in (reg-stack.o): Don't depend on gt-reg-stack.h.
        * reg-stack.c (stack_regs_mentioned_data): Change the type to
        VEC(char,heap) *.
        (stack_regs_mentioned): Update the uses of
        stack_regs_mentioned_data.  Don't access the array beyond its
        end.
        (reg_to_stack): Update the uses of stack_regs_mentioned_data.
        Don't include gt-reg-stack.h.

        * config/bfin/bfin.h (UNALIGNED_WORD_ASM_OP): Remove.
        * system.h (UNALIGNED_WORD_ASM_OP): Poison.

        * combine.c (UWIDE_SHIFT_LEFT_BY_BITS_PER_WORD): Remove.

        PR middle-end/26684
        * reg-stack.c (stack_regs_mentioned_data): Put it undef #ifdef
        STACK_REGS.

2006-03-14  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Fix typo.

2006-03-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26672
        * tree-ssa-propagate.c (set_rhs): Don't walk DEFs if not in
        SSA form.

2006-03-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26667
        * ipa-inline.c (cgraph_check_inline_limits): Walk the correct
        node for the callees.  Always allow inlining if it will shrink
        the function size.

2006-03-14  Richard Guenther  <rguenther@suse.de>

        PR middle-end/26659
        * builtins.c (get_pointer_alignment): Prefer alignment
        information from decls over that from types.

2006-03-14  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/26657
        * config/darwin.h (LINK_COMMAND_SPEC): Handle -fopenmp.

2006-03-14  Joseph S. Myers  <joseph@codesourcery.com>

        * config/rs6000/rs6000.opt (mdlmzb): New option.
        (msched-prolog, msched-epilog): Use Var not Mask.
        * doc/invoke.texi (-mdlmzb): Document.
        * config/rs6000/rs6000.c (TARGET_DEFAULT_TARGET_FLAGS): Remove
        MASK_SCHED_PROLOG.
        (rs6000_override_options): Enable -mdlmzb for 405 and 440.
        * config/rs6000/rs6000.md: Add dlmzb support for 405 and 440.

2006-03-13  Uttam Pawar  <uttamp@us.ibm.com>

        PR rtl-optimization/25739
        * bt-load.c (augment_live_range): Free tos pointer.

        * gensupport.c (identify_predicable_attribute): Free
        p_false pointer.
        * gcov.c (create_file_names): Free name pointer.

2006-03-13  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/26557
        * stmt.c (emit_case_nodes): Handle the case where the index is a
        CONST_INT, where the comparison mode is specified by the index type.

2006-03-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Define when CRTSTUFFS_O
        is defined.

2006-03-13  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/mips.md (*branch_fp): Use %Z2 for the condition.
        (*branch_fp_inverted): Likewise.

2006-03-13  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/25989
        * omp-low.c (expand_omp_for_generic): Mark istart0
        and iend0 as addressable.

2006-03-13  Jie Zhang  <jie.zhang@analog.com>

        * config/bfin/uclinux.h: Define _GNU_SOURCE in CPLUSPLUS_CPP_SPEC.

2006-03-13  Jeff Law  <law@redhat.com>

        * tree-vrp.c (stmt_interesting_for_vrp): Some statements with
        virtual operands are interesting.
        (vrp_visit_stmt): Corresponding changes.

2006-03-13  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/lib1funcs.asm (___umodsi3): Use stack to save contents
        of RETS.
        * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): If
        TARGET_ID_SHARED_LIBRARY, define __ID_SHARED_LIB__.
        * config/bfin/crti.S: Use it instead of __PIC__.
        * config/bfin/crtn.S: Likewise.

        * config/bfin/bfin.md (call_value_symbol, sibcall_value_symbol,
        call_symbol, sibcall_symbol): Disallow if TARGET_ID_SHARED_LIBRARY,
        not if flag_pic.
        Lose 'G' modifier for call operand.
        * config/bfin/bfin.c (print_operand) <case SYMBOL_REF>: Don't
        recognize 'G' modifier.

2006-03-13  Eric Botcazou  <ebotcazou@adacore.com>

        PR middle-end/18859
        * gimplify.c (gimplify_switch_expr): Discard empty ranges.
        * stmt.c (expand_case): Likewise.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/26254
        * loop-invariant.c (seq_insns_valid_p): New function.
        (move_invariant_reg): Only emit new code if it is valid.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

        * cfgrtl.c (last_loop_beg_note, back_edge_of_syntactic_loop_p):
        Removed.
        (force_nonfallthru_and_redirect): Do not use last_loop_beg_note.
        (rtl_split_edge): Do not use back_edge_of_syntactic_loop_p.
        (commit_one_edge_insertion): Do not look for loop notes.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

        * jump.c (follow_jumps): Do not check for loop notes.  Move check for
        flag_test_coverage out of loop.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

        * final.c (shorten_branches): Remove outdated comment, and turn
        the if branch that guards it to continue.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

        * cfgloop.c (flow_loop_dump): Do not dump loop->invalid field.
        * cfgloop.h (struct loop): Remove unused fields.

2006-03-13  Kazu Hirata  <kazu@codesourcery.com>

        * doc/invoke.texi (-fdump-rtl-loop): Remove.
        (-dL, -fdump-rtl-loop2): Update the dump file names 

        * doc/invoke.texi: Update dump file names.

2006-03-12  Steven Bosscher  <stevenb.gcc@gmail.com>

        * predict.c (estimate_probability): Remove.
        * profile.c (rest_of_handle_branch_prob, pass_branch_prob): Remove.
        * basic-block.h (estimate_probability): Remove prototype.
        * passes.c (finish_optimization_passes): Dump branch prediction or
        profiling heuristics to the .profile tree dump.
        (init_optimization_passes): Unqueue pass_branch_prob.

        * doc/invoke.texi (-fdump-rtl-bp): Remove.

2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>

        * rtl.def (LABEL_REF): Remove the field for LABEL_NEXTREF.
        * rtl.h (LABEL_NEXTREF): Remove field accessor.

2006-03-11  Eric Botcazou  <ebotcazou@adacore.com>

        * function.h (frame_offset_overflow): Declare.
        * function.c (frame_offset_overflow): New function.
        (assign_stack_local_1): Call it to detect that the offset overflows.
        * cfgexpand.c (alloc_stack_frame_space): Likewise.

2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>

        * config/sh/sh.c: Include alloc-pool.h.
        (label_ref_list_pool): New alloc pool.
        (label_ref_list_t): New type for lists of labels.
        (struct pool_node): Make wend a label_ref_list_t.
        (add_constant): Use the new type, eradicate LABEL_NEXTREF
        references.
        (dump_table): Likewise.
        (sh_reorg): Set up the alloc pool before using add_constant and
        dump_table, and destroy it when finishing.

2006-03-11  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/mips.c: Remove redundant comment.

2006-03-10  Jason Merrill  <jason@redhat.com>

        PR c/26004
        * gimplify.c (gimplify_modify_expr_rhs): Don't do return slot opt if 
        the target was declared 'register'.

2006-03-10  Adam Nemet  <anemet@caviumnetworks.com>

        * genpreds.c (write_insn_constraint_len): Change definition of
        insn_constraint_len to return size_t to match the declaration.

2006-03-10  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Bit numbers
        start at zero.
        (m32c_expand_insv): Fix test for an AND mask.

2006-03-10  Richard Guenther  <rguenther@suse.de>

        PR middle-end/26565
        * builtins.c (get_pointer_alignment): Handle component
        references for field alignment.

2006-03-10  J"orn Rennecke <joern.rennecke@st.com>

        * config.gcc (sh*-superh-elf, sh*elf (newlib)): Use newlib.h
        when building with libgloss.
        (sh*elf): Implement --without-fp option.
        (sh64-superh-linux*): Don't multilib. 

2006-03-10  J"orn Rennecke <joern.rennecke@st.com>

        * struct-equiv.c (rtx_equiv_p): Fix POST_MODIFY case.

2006-03-09  Andrew Pinski  <pinskia@physics.uc.edu>

        * tree-ssa-phiopt.c (tree_ssa_phiopt): Add cfgchanged variable.
        Set it when one of the replacement functions returned true.
        Return TODO_cleanup_cfg if cfgchanged is true.
        (pass_phiopt) <todo_flags_finish>: Remove TODO_cleanup_cfg.

2006-03-09  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (simplify_shift_const_1): Use gen_lowpart_or_truncate
        instead of gen_lowpart.

2006-03-09  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/mips-protos.h (mips_output_conditional_branch): Change
        interface.
        (mips_output_order_conditional_branch): Declare.
        * config/mips/mips.h (MIPS_BRANCH): New macro.
        * config/mips/mips.c (gen_conditional_branch): Use VOIDmode
        for the comparison.  Use gen_condjump.
        (mips_output_conditional_branch): Rework interface to take the
        asm templates for a direct branch and the inverse of a direct branch.
        (mips_output_order_conditional_branch): New function.
        (mips_builtin_branch_and_move): New function.
        (mips_expand_builtin_compare): Use it.  Use VOIDmode for the
        branch condition.  Use gen_single_cc as the condition for
        __builtin_mips_upper_* or __builtin_mips_lower_*.
        (mips_expand_builtin_bposge): Use mips_builtin_branch_and_move.
        Use VOIDmode for the branch condition.
        * config/mips/predicates.md (order_operator): New predicate.
        * config/mips/mips.md (UNSPEC_SINGLE_CC): New constant.
        (branch_fp): Rename to...
        (*branch_fp): ...this.  Remove mode from comparison operator.
        Use new mips_output_conditional_branch interface.
        (branch_fp_inverted): Rename to...
        (*branch_fp_inverted): ...this and update as for *branch_fp.
        (*branch_zero<mode>): Rename to...
        (*branch_order<mode>): ...this.  Remove mode from comparison operator.
        Use mips_output_order_conditional_branch.  Only accept ordered
        comparisons.  
        (*branch_zero<mode>_inverted): Rename to...
        (*branch_order<mode>_inverted): ...this and update as for
        *branch_order<mode>.
        (*branch_equality<mode>): Accept zero as the second operand to
        the equality operator.  Use the new mips_output_conditional_branch
        interface.
        (*branch_equality<mode>_inverted): Likewise.
        (condjump): New expander.
        * config/mips/mips-dsp.md (mips_bposge): Remove mode from comparison
        operator.
        * config/mips/mips-ps-3d.md (bc1any4t, bc1any4f): Likewise.
        (bc1any2t, bc1any2f): Likewise.
        (single_cc): New expander.
        (*branch_upper_lower, *branch_upper_lower_inverted): New patterns.

2006-03-09  Richard Sandiford  <richard@codesourcery.com>

        * doc/md.texi: Update documentation of MIPS constraints.
        * config/mips/constraints.md: New file.
        * config/mips/mips.md: Include it.
        * config/mips/mips.c (mips_char_to_class): Delete.
        (override_options): Don't initialize mips_char_to_class.
        * config/mips/mips.h (mips_char_to_class): Delete.
        (REG_CLASS_FROM_LETTER): Delete.
        (CONST_OK_FOR_LETTER_P): Delete.
        (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
        (EXTRA_CONSTRAINT_Y): Delete.
        (EXTRA_CONSTRAINT_STR): Delete.
        (CONSTRAINT_LEN): Delete.
        (EXTRA_MEMORY_CONSTRAINT): Delete.

2006-03-09  Diego Novillo  <dnovillo@redhat.com>

        * tree-cfg.c (move_block_to_fn): Remove the statements from the
        original fn's eh regions.

2006-03-09  Eric Botcazou  <ebotcazou@adacore.com>

        * fold-const.c (build_range_check): Make sure to use a valid type to
        apply the "(c>=low) && (c<=high) into (c-low>=0) && (c-low<=high-low)"
        transformation.

        (range_predecessor): New static function.
        (range_successor): Likewise.
        (merge_ranges): Use them to compute predecessors and successors of
        range bounds.

2006-03-09  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/26561
        * fold-const.c (fold_div_compare): When optimizing X/C1 op C2 as
        X op C3, consider whether C3 overflows towards +Inf or -Inf.

2006-03-08  DJ Delorie  <dj@redhat.com>

        * config/m32c/addsub.md (addqi3): Disparage a0/a1.
        (addpsi3): Expand to include memory operands.  Remove
        reload-specific splits.
        * config/m32c/bitops.md (bset_qi, bset_hi, bclr_qi): New.
        (andqi3_16, andhi3_16, iorqi3_16, iorhi3_16): New.
        (andqi3_24, andhi3_24, iorqi3_24, iorhi3_24): New.
        (andqi3, andhi3, iorqi3, iorhi3): Convert to expanders.
        (shift1_qi, shift1_hi, insv): New.
        * config/m32c/cond.md (cbranchqi4, cbranchhi4): Remove.
        (cbranch<mode>4, stzx_16, stzx_24_<mode>, stzx_reversed,
        cmp<mode>, b<code>, s<code>, s<code>_24, movqicc, movhicc,
        cond_to_int): New.
        * config/m32c/m32c-protos.h: Update as needed.
        * config/m32c/m32c.c (m32c_reg_class_from_constraint): Don't
        default the Rcr, Rcl, Raw, and Ral constraints.  Add Ra0 and Ra1.
        Fail for unrecognized R* constraints.
        (m32c_cannot_change_mode_class): Be more picky about pseudos.
        (m32c_const_ok_for_constraint_p): Add Imb, Imw, and I00.
        (m32c_extra_constraint_p2): Allow (mem (plus (plus fb int) int)).
        Add Sp constraint.
        (m32c_init_libfuncs): New.
        (m32c_legitimate_address_p): Add debug wrapper.
        (m32c_rtx_costs): New.
        (m32c_address_cost): New.
        (conversions): Add 'B' prefix.
        (m32c_print_operand): 'h' and 'H' pick lower and upper halves of
        operands, or word regnames for QI operands.  'B' prints bit
        position.
        (m32c_expand_setmemhi): New.
        (m32c_expand_movmemhi): New.
        (m32c_expand_movstr): New.
        (m32c_expand_cmpstr): New.
        (m32c_prepare_shift): Shift counts are limited to 16 bits at a time.
        (m32c_expand_neg_mulpsi3): Handle non-ints.
        (m32c_cmp_flg_0): New.
        (m32c_expand_movcc): New.
        (m32c_expand_insv): New.
        (m32c_scc_pattern): New.
        * config/m32c/m32c.h (reg classes): Add AO_REGS and A1_REGS.  Take
        a0/a1 out of SIregs.
        (STORE_FLAG_VALUE): New.
        * config/m32c/m32c.md: Add unspecs for string moves.  Define various mode and
        code macros.
        (no_insn): New.
        * config/m32c/mov.md: Make constraints more liberal.
        (zero_extendqihi2): Optimize r0/r1 case.
        * config/m32c/muldiv.md (mulpsi3): Check for intvals.
        * config/m32c/predicates.md (m32c_any_operand): New.
        (m32c_nonimmediate_operand): New.
        (m32c_hl_operand): New.
        (m32c_r3_operand): New.
        (ap_operand): New.
        (ma_operand): New.
        (memsym_operand): New.
        (memimmed_operand): New.
        (a_qi_operand): New.
        (m32c_eqne_operator): New.
        (m32c_1bit8_operand): New.
        (m32c_1bit16_operand): New.
        (m32c_1mask8_operand): New.
        (m32c_1mask16_operand): New.
        * config/m32c/blkmov.md: New file.
        * config/m32c/t-m32c (MD_FILES): Add blkmov.

2006-03-08  Andreas Tobler  <a.tobler@schweiz.ch>

        * dwarf2out.c (expand_builtin_dwarf_sp_column): Make dwarf_regnum
        unsigned to fix signed/unsigned comparison issue in
        DWARF2_FRAME_REG_OUT.
        (expand_builtin_init_dwarf_reg_sizes): Make i unsigned to fix signed/
        unsigned comparison issue in DWARF2_FRAME_REG_OUT.

        * tree-ssa-operands.c (finalize_ssa_def_ops): Move the declaration
        of ptr into the ENABLE_CHECKING section.

2006-03-08  Jeff Law  <law@redhat.com>

        * tree-vrp.c (infer_value_range): Only count pointer uses
        and dereferences if -fdelete-null-pointer-checks is enabled.

        * tree-vrp.c (find_assert_locations): Infer value ranges for
        single use pointers, but do not create ASSERT_EXPRs for them.
        When a non-null range is inferred for a pointer, backwards
        propagate that range to other equivalent pointers through the
        use-def chain.

2006-03-08  Paolo Bonzini  <bonzini@gnu.org>

        PR bootstrap/26500
        * Makefile.in (dvi, html, install-info): Invoke the corresponding
        language hook targets.
        * ada/Make-lang.in, cp/Make-lang.in, objc/Make-lang.in,
        objcp/Make-lang.in: Create stub rules for dvi, html, install-info
        if language hook targets were missing.

2006-03-07  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-opfinalize.h: Removed.
        * Makefile.in (tree-ssa-operands.o): Remove tree-ssa-opfinalize.h
        dependency.
        * tree-ssa-operands.c: Do not include tree-ssa-opfinalize.h.
        (ALLOC_OPTYPE, APPEND_OP_AFTER, MOVE_HEAD_AFTER, MOVE_HEAD_TO_FREELIST,
        INITIALIZE_USE, add_def_op, add_use_op, add_vuse_op, add_maydef_op,
        add_mustdef_op, finalize_ssa_def_ops, finalize_ssa_use_ops,
        finalize_ssa_v_may_def_ops, finalize_ssa_vuse_ops,
        finalize_ssa_v_must_def_ops): New.

2006-03-07  Kenneth Zadeck <zadeck@naturalbridge.com>

        * df-scan.c: (df_bb_refs_record): Fix obvious typo with wrong
        block as parameter.

2006-03-07  Geoffrey Keating  <geoffk@apple.com>

        * varasm.c (assemble_end_function): Say that 'fnname' is unused.

        * config/i386/i386.c (ix86_delegitimize_address): Handle Darwin
        addresses with offsets; reorganize.

        * dwarf2out.c (DWARF2_FRAME_REG_OUT): Move up in file.
        (expand_builtin_dwarf_sp_column): Call DWARF2_FRAME_REG_OUT.
        (expand_builtin_init_dwarf_reg_sizes): Likewise.

2006-03-08  David Billinghurst <David.Billinghurst@riotinto.com>

        PR target/26588
        * config/i386/cygwin.h (GOMP_SELF_SPECS): Define.

2006-03-08  Ben Elliston  <bje@au.ibm.com>

        * config/fp-bit.h (CMPtype): Typedef to a word mode integer.

2006-03-07  Aldy Hernandez  <aldyh@redhat.com>

        PR gomp/26238
        * doc/passes.texi (Tree-SSA passes): Document omp lowering and
        expansion.

2006-03-07  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26587
        * tree-ssa-structalias.c (handle_ptr_arith): Handle MINUS_EXPR.

2006-03-07  Richard Sandiford  <richard@codesourcery.com>

        * varasm.c (assemble_variable): Fix setting of DECL_IN_TEXT_SECTION.

2006-03-07  Richard Sandiford  <richard@codesourcery.com>

        * hooks.c (hook_bool_mode_rtx_true): New function.
        * hooks.h (hook_bool_mode_rtx_true): Declare.
        * toplev.c (compile_file): Call output_shared_constant_pool.
        * varasm.c (shared_constant_pool): New variable.
        (assemble_start_function, assemble_end_function): Remove arguments
        from call to output_constant_pool.
        (create_constant_pool): New function, split out from...
        (init_varasm_status): ...here.
        (force_const_mem): Choose between the shared and per-function constant
        pools.  Set current_function_uses_const_pool when reusing old entries
        as well as when creating new ones.
        (mark_constant): Ignore data argument.
        (mark_constants): Remove pool argument.
        (mark_constant_pool): Likewise.  Use current_function_uses_const_pool
        to decide whether the function uses a constant pool.
        (output_constant_pool_contents): New function, split out from...
        (output_constant_pool): ...here.
        (output_shared_constant_pool): New function.
        (init_varasm_once): Initialize shared_constant_pool.
        * output.h (output_constant_pool): Delete.
        (output_shared_constant_pool): Declare.
        * config/s390/s390-protos.h (s390_output_constant_pool): Delete.
        * config/i386/i386.c (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Override.

2006-03-06  Nick Clifton  <nickc@redhat.com>

        * config/m32r/m32r.h (OPTIMIZATION_OPTIONS): Remove reference to
        flag_strength_reduce.

2006-03-06  Ben Elliston  <bje@au.ibm.com>

        * config.gcc: Add t-dfprules to $tmake_file for i*86-*-linux* and
        x86_64-*-linux* configurations.

        * config/dfp-bit.h (CMPtype): Typedef to a word mode integer.
        (LIBGCC2_WORDS_BIG_ENDIAN): Define.

2006-03-05  Kazu Hirata  <kazu@codesourcery.com>

        * tree-ssa-threadupdate.c (rediscover_loops_after_threading):
        Remove.
        * basic-block.h: Remove the extern for
        rediscover_loops_after_threading.

        * cfgloop.c (cancel_loop): Make it static.
        * cfgloop.h: Remove the prototype for cancel_loop.

        * flow.c (recompute_reg_usage): Make it static.
        * rtl.h: Remove the prototype for recompute_reg_usage.

        * function.c (use_return_register): Make it static.
        * function.h: Remove the prototype.

2006-03-05  Kazu Hirata  <kazu@codesourcery.com>

        * recog.c (volatile_mem_p, validate_change_maybe_volatile):
        Remove.
        * recog.h: Remove the prototype for
        validate_change_maybe_volatile.

2006-03-05  Kazu Hirata  <kazu@codesourcery.com>

        * rtlanal.c (replace_reg): Remove.
        * rtl.h: Remove the prototype for replace_reg.

2006-03-05  Kazu Hirata  <kazu@codesourcery.com>

        * regclass.c (reg_scan_update): Remove.
        (reg_scan_mark_refs): Remove the last argument.
        * rtl.h: Remove the prototype for reg_scan_update.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

        * builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
        combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
        config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
        config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
        df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
        loop-invariant.c, omp-low.c, opts.c, passes.c,
        rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
        tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
        tree-ssa-structalias.c, tree-ssa-threadedge.c,
        tree-ssa-threadupdate.c, tree-vect-patterns.c,
        tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
        unwind-dw2.c: Fix comment typos.  Follow spelling conventions.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

        * dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
        * dwarf2out.h: Remove the prototype for
        dwarf2out_add_library_unit_info.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

        * tree.c (add_var_to_bind_expr): Remove.
        * tree.h: Remove the prototype for add_var_to_bind_expr.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

        * regclass.c (n_non_fixed_regs): Remove.
        (init_reg_sets_1, globalize_reg): Remove all uses of
        n_non_fixed_regs.
        * hard-reg-set.h: Remove the extern for n_non_fixed_regs.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

        * rtlanal.c (insns_safe_to_move_p): Remove.
        * rtl.h: Remove the prototype for insns_safe_to_move_p.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

        * expmed.c (expand_mult_add): Remove.
        * expr.h: Remove the prototype for expand_mult_add.

2006-03-04  Jakub Jelinek  <jakub@redhat.com>

        * unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
        and REG_SAVED_VAL_EXP constants.
        * unwind-dw2.c (struct _Unwind_Context): Add by_value array.
        (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
        Handle regs stored by value.
        (_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
        (execute_cfa_program): Handle DW_CFA_val_offset,
        DW_CFA_val_offset_sf and DW_CFA_val_expression.
        (uw_update_context_1): Handle REG_SAVED_REG with regs stored by
        value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
        (uw_install_context_1): Handle target regs stored by value.

2006-03-03  Daniel Berlin  <dberlin@dberlin.org>

        * tree-sra.c (tree_sra): Return todoflags;
        (generate_one_element): Set TODO_update_smt_usage if needed.
        (pass_sra): Remove TODO_update_smt_usage.
        * tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
        parameter.
        (tree_ssa_forward_propagate_single_use_vars): Return
        TODO_update_smt_usage if we need to update SMT usage.
        (pass_forwprop): Remove TODO_update_smt_usage.
        
2006-03-03  Diego Novillo  <dnovillo@redhat.com>

        * tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
        (correct_use_link): Remove reference to get_stmt_operands.
        (update_stmt_operands): Likewise.
        (get_modify_expr_operands): New function factored out of
        parse_ssa_operands and get_expr_operands.
        Try to create V_MUST_DEFs for LHS by default.
        (get_expr_operands) <case MODIFY_EXPR>: Call
        get_modify_expr_operands.
        <case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
        <case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
        (parse_ssa_operands) <case MODIFY_EXPR>: Call
        get_modify_expr_operands.

2006-03-03  Kazu Hirata  <kazu@codesourcery.com>

        * tree-dfa.c (referenced_var_lookup_if_exists): Remove.
        * tree-flow.h: Remove the prototype for
        referenced_var_lookup_if_exists.

2006-03-03  Steve Ellcey  <sje@cup.hp.com>

        PR rtl-optimization/26345
        PR target/19061
        * config/ia64/predicates.md (basereg_operand): Don't look in subregs.

2006-03-03  Roger Sayle  <roger@eyesopen.com>

        PR tree-optimization/26524
        * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
        fold_convert to create a constant of the appropriate type.

2006-03-03  Richard Sandiford  <richard@codesourcery.com>

        * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
        SYMBOL_REF_IN_BLOCK_P.
        * doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
        of SYMBOL_FLAG_IN_BLOCK.
        * gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
        instead of SYMBOL_REF_IN_BLOCK_P.
        * explow.c (use_anchored_address): Likewise.
        * rtl.c (rtx_size): Likewise.
        * varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
        instead of SYMBOL_FLAG_IN_BLOCK.
        (make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
        SYMBOL_REF_IN_BLOCK_P.
        (assemble_variable): Likewise.
        (output_constant_def_contents): Likewise.
        (output_constant_pool): Likewise.
        (default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
        instead of SYMBOL_FLAG_IN_BLOCK.
        * rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
        SYMBOL_REF_IN_BLOCK_P.
        (SYMBOL_REF_BLOCK): Likewise.
        (SYMBOL_REF_OFFSET): Likewise.
        (BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
        SYMBOL_REF_IN_BLOCK_P.
        (SYMBOL_FLAG_IN_BLOCK): Replace with...
        (SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
        (SYMBOL_REF_IN_BLOCK_P): Replace with...
        (SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.

2006-03-03  Jakub Jelinek  <jakub@redhat.com>

        * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.

2006-03-02  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (simplify_unary_operation): When simplifying
        (neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
        that we perform the right shift in the appropriate mode, and
        then extend or truncate the result to requested mode.

2006-03-03  Zdenek Dvorak <dvorakz@suse.cz>

        * gengtype.c (main): Handle double_int type.
        * tree.h (struct tree_int_cst): Make type of int_cst double_int.
        * double-int.c: New file.
        * double-int.h: New file.
        * system.h: Include doubleint.h.
        * Makefile.in (SYSTEM_H): Include double-int.h.
        (double-int.o): Add.

2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>

        PR bootstrap/26478
        * Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
        copying over it.

2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-vrp.c (remove_range_assertions): Do not update statements
        unnecessarily.

2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>

        * cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
        cleanup.
        * gcse.c (rest_of_handle_gcse): Ditto.
        * except.c (gate_handle_eh): Ditto.
        * cfgcleanup.c (rest_of_handle_jump2): Ditto.
        * basic-block.h (CLEANUP_PRE_LOOP): Remove.

2006-03-02  Eric Christopher  <echristo@apple.com>

        * config/i386/i386.c (machopic_output_stub): Add indirection to
        jump.

2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>

        * loop.c: Removed.

2006-03-02  David S. Miller  <davem@sunset.davemloft.net>

        Sun Niagara specific optimizations.
        * config.gcc: Recognize niagara as target.
        * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
        (TARGET_CPU_niagara): Define.
        (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
        (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
        (CPP_CPU_SPEC): Handle -mcpu=niagara.
        (ASM_CPU_SPEC): Likewise.
        (PROCESSOR_NIAGARA): New enum entry.
        (REGISTER_MOVE_COST): Handle Niagara.
        (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
        * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
        (sparc_override_options): Recognize "niagara", set appropriate
        default MASK_* values for it, and align functions to 32-bytes
        by default just like ULTRASPARC/ULTRASPARC3.
        (sparc_initialize_trampoline): Handle niagara like ultrasparc.
        (sparc64_initialize_trampoline): Likewise.
        (sparc_use_sched_lookahead): Use zero for niagara.
        (sparc_issue_rate): Use one for niagara.
        * config/sparc/niagara.md: New file.
        * config/sparc/sparc.md: Include it.
        * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
        ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
        when default cpu is niagara.
        (CPP_CPU_SPEC): Handle -mcpu=niagara.
        (ASM_CPU_SPEC): Likewise.
        * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
        when default cpu is niagara.
        (ASM_CPU_SPEC): Handle -mcpu=niagara.
        * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
        just like v9/ultrasparc/ultrasparc3.
        * doc/invoke.texi: Add documentation for "niagara" and improve
        existing documentation for ultrasparc variants.

2006-03-02  Diego Novillo  <dnovillo@redhat.com>

        * tree-ssa-operands.c (update_stmt_operands): Update documentation.

2006-03-02  Richard Sandiford  <richard@codesourcery.com>

        * doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
        (ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
        and say that only one is needed.
        * doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
        * target.h (have_switchable_bss_sections): New hook.
        * explow.c (use_anchored_address): Check that the symbol is in a block.
        * varasm.c (tls_comm_section, comm_section, lcomm_section)
        (bss_noswitch_section): New variables.
        (get_unnamed_section): Add SECTION_UNNAMED to the flags.
        (get_noswitch_section): New function.
        (get_block_for_section): Allow SECT to be null.
        (unlikely_text_section_p): Use SECTION_STYLE.
        (bss_initializer_p): New function.
        (get_variable_section): Move earlier in file.  Take a new argument,
        prefer_noswitch_p.  Move bss checks from assemble_variable to here.
        Return one of the new *_sections in such cases.
        (get_block_for_decl): New function, extracting some logic from
        use_blocks_for_decl_p.
        (change_symbol_section): Remove in favor of...
        (change_symbol_block): ...this new function.
        (use_blocks_for_decl_p): Remove checks now performed by
        get_block_for_decl.
        (make_decl_rtl): Use change_symbol_block and get_block_for_decl.
        (ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
        (emit_local, emit_bss, emit_common): ...these new functions.
        Return true if the alignment was honored.
        (emit_tls_common): New function.
        (asm_emit_uninitialised): Delete.
        (assemble_variable_noswitch): New function, split out from...
        (assemble_variable): ...here.  Don't make decisions about common
        variables here.  Globalize all public decls that go into non-common
        sections.  Check whether SYMBOL_REF_BLOCK is null.
        (output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
        (output_constant_pool): Likewise.
        (init_varasm_once): Initialize the new section variables.
        (have_global_bss_p): New function.
        (categorize_decl_for_section): Use bss_initializer_p.
        (switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
        (place_block_symbol): Assert that the symbol must be in a block.
        * target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
        (TARGET_INITIALIZER): Include it.
        * rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
        * output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
        (SECTION_MACH_DEP): Bump by two.
        (SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
        (unnamed_section): Mention SECTION_UNNAMED in comment.
        (named_section): Likewise SECTION_NAMED.
        (noswitch_section_callback): New type.
        (noswitch_section): New structure.
        (section): Add a noswitch_section alternative.
        (SECTION_STYLE): New macro.
        (tls_comm_section, comm_section, lcomm_section): Declare.
        (bss_noswitch_section, have_global_bss_p): Declare.
        * config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
        * config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
        Override.
        * config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
        * config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
        Override.

2006-03-02  Daniel Berlin <dberlin@dberlin.org>

        * gcc/tree-vrp.c (execute_vrp): Return value.
        * gcc/regrename.c (rest_of_handle_regrename): Ditto.
        * gcc/tree-into-ssa.c (rewrite_into_ssa): Ditto.
        * gcc/tree-complex.c (tree_lower_complex): Ditto.
        (tree_lower_complex_O0): Ditto.
        * gcc/tracer.c (rest_of_handle_tracer): Ditto.
        * gcc/postreload-gcse.c (rest_of_handle_gcse2): Ditto.
        * gcc/postreload.c (rest_of_handle_postreload): Ditto.
        * gcc/tree-tailcall.c (execute_tail_recursion): Ditto.
        (execute_tail_calls): Ditto.
        * gcc/tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
        * gcc/tree.h (init_function_for_compilation): Ditto.
        * gcc/ipa-cp.c (ipcp_driver): Ditto.
        * gcc/tree-scalar-evolution.c (scev_const_prop): Ditto.
        * gcc/tree-scalar-evolution.h (scev_const_prop): Ditto.
        * gcc/final.c (compute_alignments): Ditto.
        (rest_of_handle_final): Ditto.
        (rest_of_handle_shorten_branches): Ditto.
        (rest_of_clean_state): Ditto.
        * gcc/omp-low.c (execute_expand_omp): Ditto.
        (execute_lower_omp): Ditto.
        * gcc/tree-ssa-dse.c (tree_ssa_dse): Ditto.
        * gcc/ipa-reference.c (static_execute): Ditto.
        * gcc/tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
        * gcc/reorg.c (rest_of_handle_delay_slots): Ditto.
        (rest_of_handle_machine_reorg): Ditto.
        * gcc/cgraphunit.c (rebuild_cgraph_edges): Ditto.
        * gcc/flow.c (recompute_reg_usage): Ditto.
        (rest_of_handle_remove_death_notes): Ditto.
        (rest_of_handle_life): Ditto.
        (rest_of_handle_flow2): Ditto.
        * gcc/tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
        * gcc/tree-ssa-ccp.c (do_ssa_ccp): Ditto.
        (do_ssa_store_ccp): Ditto.
        (execute_fold_all_builtins): Ditto.
        * gcc/mode-switching.c (rest_of_handle_mode_switching): Ditto.
        * gcc/modulo-sched.c (rest_of_handle_sms): Ditto.
        * gcc/ipa-pure-const.c (static_execute): Ditto.
        * gcc/cse.c (rest_of_handle_cse): Ditto.
        (rest_of_handle_cse2): Ditto.
        * gcc/web.c (rest_of_handle_web): Ditto.
        * gcc/tree-stdarg.c (execute_optimize_stdarg): Ditto.
        * gcc/tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
        * gcc/tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
        * gcc/tree-nrv.c (tree_nrv): Ditto.
        (execute_return_slot_opt): Ditto.
        * gcc/tree-ssa-alias.c (compute_may_aliases): Ditto.
        (create_structure_vars): Ditto.
        * gcc/loop-init.c (rtl_loop_init): Ditto.
        (rtl_loop_done): Ditto.
        (rtl_move_loop_invariants): Ditto.
        (rtl_unswitch): Ditto.
        (rtl_unroll_and_peel_loops): Ditto.
        (rtl_doloop): Ditto.
        * gcc/gimple-low.c (lower_function_body): Ditto.
        (mark_used_blocks): Ditto.
        * gcc/tree-ssa-sink.c (execute_sink_code): Ditto.
        * gcc/ipa-inline.c (cgraph_decide_inlining): Ditto.
        (cgraph_early_inlining): Ditto.
        * gcc/global.c (rest_of_handle_global_alloc): Ditto.
        * gcc/jump.c (cleanup_barriers): Ditto.
        (purge_line_number_notes): Ditto.
        * gcc/ifcvt.c (rest_of_handle_if_conversion): Ditto.
        (rest_of_handle_if_after_reload): Ditto.
        * gcc/tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
        (tree_ssa_loop_im): Ditto.
        (tree_ssa_loop_unswitch): Ditto.
        (tree_vectorize): Ditto.
        (tree_linear_transform): Ditto.
        (tree_ssa_loop_ivcanon): Ditto.
        (tree_ssa_empty_loop): Ditto.
        (tree_ssa_loop_bounds): Ditto.
        (tree_complete_unroll): Ditto.
        (tree_ssa_loop_prefetch): Ditto.
        (tree_ssa_loop_ivopts): Ditto.
        (tree_ssa_loop_done): Ditto.
        * gcc/predict.c (tree_estimate_probability): Ditto.
        * gcc/recog.c (split_all_insns_noflow): Ditto.
        (rest_of_handle_peephole2): Ditto.
        (rest_of_handle_split_all_insns): Ditto.
        * gcc/tree-eh.c (lower_eh_constructs): Ditto.
        * gcc/regmove.c (rest_of_handle_regmove): Ditto.
        (rest_of_handle_stack_adjustments): Ditto.
        * gcc/local-alloc.c (rest_of_handle_local_alloc): Ditto.
        * gcc/function.c (instantiate_virtual_regs): Ditto.
        (init_function_for_compilation): Ditto.
        (rest_of_handle_check_leaf_regs): Ditto.
        * gcc/gcse.c (rest_of_handle_jump_bypass): Ditto.
        (rest_of_handle_gcse): Ditto.
        * gcc/ipa-type-escape.c (type_escape_execute): Ditto.
        * gcc/alias.c (rest_of_handle_cfg): Ditto.
        * gcc/tree-if-conv.c (main_tree_if_conversion): Ditto.
        * gcc/profile.c (rest_of_handle_branch_prob): Ditto.
        * gcc/tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
        * gcc/rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
        * gcc/bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
        * gcc/tree-dfa.c (find_referenced_vars): Ditto.
        * gcc/except.c (set_nothrow_function_flags): Ditto.
        (convert_to_eh_region_ranges): Ditto.
        (rest_of_handle_eh): Ditto.
        * gcc/emit-rtl.c (unshare_all_rtl): Ditto.
        (remove_unnecessary_notes): Ditto.
        * gcc/except.h (set_nothrow_function_flags): Ditto.
        (convert_to_eh_region_ranges): Ditto.
        * gcc/cfgexpand.c (tree_expand_cfg): Ditto.
        * gcc/tree-cfgcleanup.c (merge_phi_nodes): Ditto.
        * gcc/tree-ssa-pre.c (do_pre): Ditto.
        (execute_fre): Ditto.
        * gcc/cfgcleanup.c (rest_of_handle_jump): Ditto.
        (rest_of_handle_jump2): Ditto.
        * gcc/tree-sra.c (tree_sra): Ditto.
        * gcc/tree-mudflap.c (execute_mudflap_function_ops): Ditto.
        (execute_mudflap_function_decls): Ditto.
        * gcc/tree-ssa-copy.c (do_copy_prop): Ditto.
        (do_store_copy_prop): Ditto.
        * gcc/ipa-prop.h (ipcp_driver): Ditto.
        * gcc/cfglayout.c (insn_locators_initialize): Ditto.
        * gcc/tree-ssa-forwprop.c
        (tree_ssa_forward_propagate_single_use_vars): Ditto.
        * gcc/cfglayout.h (insn_locators_initialize): Ditto.
        * gcc/tree-ssa-dce.c (tree_ssa_dce): Ditto.
        * gcc/tree-ssa.c (execute_early_warn_uninitialized): Ditto.
        (execute_late_warn_uninitialized): Ditto.
        * gcc/rtl.h (cleanup_barriers): Ditto.
        (split_all_insns_noflow): Ditto.
        (purge_line_number_notes): Ditto.
        (unshare_all_rtl): Ditto.
        (remove_unnecessary_notes): Ditto.
        (recompute_reg_usage): Ditto.
        (variable_tracking_main): Ditto.
        * gcc/integrate.c (emit_initial_value_sets): Ditto.
        * gcc/integrate.h (emit_initial_value_sets): Ditto.
        * gcc/tree-optimize.c (execute_free_datastructures): Ditto
        (execute_free_cfg_annotations): Ditto.
        (execute_fixup_cfg): Ditto.
        (execute_cleanup_cfg_pre_ipa): Ditto.
        (execute_cleanup_cfg_post_optimizing): Ditto.
        (execute_init_datastructures): Ditto.
        * gcc/tree-object-size.c (compute_object_sizes): Ditto.
        * gcc/combine.c (rest_of_handle_combine): Ditto.
        * gcc/tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
        * gcc/bb-reorder.c (duplicate_computed_gotos): Ditto.
        (rest_of_handle_reorder_blocks): Ditto.
        (rest_of_handle_partition_blocks): Ditto.
        * gcc/var-tracking.c (variable_tracking_main): Ditto.
        * gcc/tree-profile.c (tree_profiling): Ditto.
        * gcc/tree-vect-generic.c (expand_vector_operations): Ditto.
        * gcc/reg-stack.c (rest_of_handle_stack_regs): Ditto.
        * gcc/sched-rgn.c (rest_of_handle_sched): Ditto.
        (rest_of_handle_sched2): Ditto.
        * gcc/basic-block.h (free_bb_insn): Ditto.
        * gcc/tree-ssa-structalias.c (ipa_pta_execute): Ditto.
        * gcc/tree-cfg.c (execute_build_cfg): Ditto.
        (remove_useless_stmts): Ditto.
        (split_critical_edges): Ditto.
        (execute_warn_function_return): Ditto.
        (execute_warn_function_noreturn): Ditto.
        * gcc/tree-ssa-reassoc.c (execute_reassoc): Ditto.
        * gcc/cfgrtl.c (free_bb_for_insn): Ditto.
        * gcc/passes.c (execute_one_pass): Run additional
        todos returned by execute function.
        * gcc/tree-pass.h (struct tree_opt_pass): Make execute
        return a value.

2006-03-02  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-alias.c (find_used_portions): Consider taking
        the address as making the variable not write-only.

2006-03-02  Nick Clifton  <nickc@redhat.com>

        * config.gcc (default_use_cxa_atexit): Extend the description of
        this configure variable.  Set its default value to "yes" for
        Linux, NetBSD and ELF targets on the assumption that they will
        use C libraries with the __cxa_atexit function.

2006-03-02  Ben Elliston  <bje@au.ibm.com>

        * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
        parameter as unused to suppress a build warning.

2006-03-02  Ben Elliston  <bje@au.ibm.com>

        * mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
        config/dfp-bit.c.

2006-03-01  Roger Sayle  <roger@eyesopen.com>

        PR other/26489
        * gthr-posix.h (__gthrw2): Define to take three parameters, the
        declared name, the weak reference name, and the typeof name.
        (__gthrw): Avoid expanding the declared name suffix.
        (__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.

2006-03-01  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
        from DWARF 3.
        (DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
        DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
        DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
        DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
        DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
        (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
        (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
        DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
        (DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
        DW_DS_leading_separate, DW_DS_trailing_separate): New.
        (DW_END_default, DW_END_big, DW_END_little): New.
        (DW_END_lo_user, DW_END_hi_user): Define.
        (DW_LNE_lo_user, DW_LNE_hi_user): Define.
        (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
        (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
        DW_LANG_D): New.

2006-03-01  Diego Novillo  <dnovillo@redhat.com>

        * tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
        Update all users.
        * tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
        Update all users.
        (TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
        Update all users.
        * tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
        Update all users.
        * tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
        to 'symbol_mem_tag'.
        Update all users.
        * doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
        rename.

2006-03-01  Roger Sayle  <roger@eyesopen.com>

        * builtins.c (fold_builtin_copysign): Delete unreachable code.

2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/25761
        * config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
        MACHO_DYNAMIC_NO_PIC_P.
        (MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.

2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/26389
        * config/darwin-protos.h (darwin_asm_output_anchor):
        Declare.
        * config/darwin-sections.def (cstring_section):
        Add SECTION_MERGE to the flags.
        (literal4_section): Likewise.
        (literal8_section): Likewise.
        (objc_selector_refs_section): Likewise.
        (objc_cls_refs_section): Likewise.
        * config/darwin.c (darwin_asm_output_anchor): New
        function.
        * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.

2006-03-01  Daniel Berlin  <dberlin@dberlin.org>

        Fix PR tree-optimization/26443
        * tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
        to todo and PROP_tmt_usage to properties_destroyed.
        * tree-ssa-ccp.c (pass_ccp): Ditto.
        (pass_store_ccp): Ditto.
        * tree-ssa-dom.c (pass_dominator): Ditto.

2006-03-01  Diego Novillo  <dnovillo@redhat.com>

        * tree-ssa-operands.c: Cleanup whitespace.
        (get_asm_expr_operands): Move before first invocation.
        (get_indirect_ref_operands): Likewise.
        (get_tmr_operands): Likewise.
        (get_call_expr_operands): Likewise.
        (append_def): Likewise.
        (append_use): Likewise.
        (append_v_may_def): Likewise.
        (append_v_must_def): Likewise.
        (add_call_clobber_ops): Likewise.
        (add_call_read_ops): Likewise.
        (add_stmt_operand): Likewise.
        (add_virtual_operand): Likewise.
        (build_ssa_operands): Likewise.

2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>

        PR middle-end/26022
        Revert:
        PR middle-end/24437
        * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
        with a call expr to ...
        * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.

2006-03-01  Diego Novillo  <dnovillo@redhat.com>

        * tree-vrp.c (extract_range_from_assert): Remove special
        handling for types with super-types.

2006-03-01  Ben Elliston  <bje@au.ibm.com>

        * config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
        and powerpc64-*-linux* configurations.
        * config/t-dfprules: New file.

        * mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
        Compile dfp-bit.c from the source directory using -DWIDTH and
        $DFP_CFLAGS to control the compilation of that file, rather than
        generating width-specific versions in the build directory.
        * Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
        (LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].

2006-02-28  Zack Weinberg  <zackw@panix.com>

        * doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
        continues to work.

2006-02-28  Eric Christopher  <echristo@apple.com>

        * config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
        Set up IN_LIBGCC definition of TARGET_64BIT.
        * config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.

2006-02-28  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/14752
        * c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
        BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
        cases via the construction of "expr != 0".

2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>

        * alias.c (alias_invariant, alias_invariant_size): Remove.
        (record_base_value): Remove.
        (memrefs_conflict_p): Don't look at alias_invariant.
        (end_alias_analysis): Don't free it.
        * alias.h (record_base_value): Remove prototype.

2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
            Adam Nemet  <anemet@caviumnetworks.com>

        * rtl.h (truncated_to_mode): Declare it.
        (struct rtl_hooks): Add reg_truncated_to_mode hook.
        * rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
        (RTL_HOOKS_INITIALIZER): Include it.
        * rtlhooks.c (reg_truncated_to_mode_general): New function.
        * combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
        reg_truncated_to_mode.
        * rtlanal.c (truncated_to_mode): Define it.
        * simplify-rtx.c (simplify_unary_operation_1): Use it.

2006-02-28  Jeff Law  <law@redhat.com>

        * tree-chrec.c (chrec_convert_aggressive): Do not eliminate
        conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
        the range allowed by TYPE_PRECISION.

        * tree.h (strct phi_arg_d): Remove unused NONZERO field.

2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/26419
        * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
        values of n.

2006-02-27  Zack Weinberg  <zackw@panix.com>

        * doc/md.texi: Fix typo in previous change.

2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>

        * df.c: Remove.

2006-02-27  Zack Weinberg  <zackw@panix.com>

        * rtl.def (define_constraint, define_register_constraint)
        (define_memory_constraint, define_address_constraint): New MD forms.
        * gensupport.c (process_rtx): Put define_constraint etc on the
        predicate queue.
        * genpreds.c (process_define_predicate): Adjust comment.  Validate
        the name, and call validate_exp to validate the expression.
        (mark_mode_tests, write_extract_subexp): Can assume correct input.
        (write_predicate_expr): Likewise.  NAME argument no longer necessary;
        all callers changed.
        (validate_exp, needs_variable, struct constraint_data)
        (constraints_by_letter_table, first_constraint, last_constraint_ptr)
        (FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
        (const_dbl_constraints, constraint_max_namelen)
        (have_register_constraints, have_memory_constraints)
        (have_address_constraints, have_address_constraints)
        (have_extra_constraints, have_const_int_constraints)
        (have_const_dbl_constraints, mangle, add_constraint)
        (process_define_constraint, process_define_register_constraint)
        (write_enum_constraint_num, write_lookup_constraint)
        (write_insn_constraint_len, write_regclass_for_constraint)
        (write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
        (write_insn_extra_memory_constraint)
        (write_insn_extra_address_constraint)
        (write_satisfies_constraint_fns): New.
        (write_tm_preds_h): If we have new-style constraint definitions,
        prototype the functions generated from them, and define the
        old constraint interface (still used by generic code) in terms of
        those functions.
        (write_insn_preds_c): If we have new-style constraint definitions,
        generate all relevant functions from those definitions.
        (main): Handle define_constraint etc.
        * genoutput.c (struct constraint_data, indep_constraints)
        (mdep_constraint_letters, constraints_by_letter_table, note_constraint)
        (mdep_constraint_len): New data structures and functions, defined
        #ifdef USE_MD_CONSTRAINTS.
        (check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
        (validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
        use new logic to validate operand constraints against constraint
        definitions.
        (main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
        defined.
        * defaults.h: If none of the old-style constraint macros are
        defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
        old-style macros; and poison REG_CLASS_FROM_LETTER,
        CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
        EXTRA_CONSTRAINT.
        * recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
        * doc/md.texi: Document new constraint-definition mechanism and the
        C interface it provides.  Remove references to old mechanism
        elsewhere in the document.
        (Machine Constraints): Use pathnames relative to gcc directory,
        i.e. config/ARCH/FILE.  Change i386 section to refer to
        config/i386/predicates.md; update that section to match docstrings.
        * doc/tm.texi: Move all documentation of the old constraint-
        definition macros to their own section, clearly mark as obsolete.

        * config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
        (u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
        definitions.
        * config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
        (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
        * config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
        constraint strings.
        (splits and peepholes): Use satisfies_constraint_*.
        * config/i386/i386.c (memory_address_length)
        (ix86_attr_length_immediate_default): Use satisfies_constraint_*.

2006-02-27  Daniel Berlin  <dberlin@dberlin.org>

        * lambda-code.c (can_convert_to_perfect_nest): Allow any type of
        scalar operation to be put back into the loop.

2006-02-27  Jakub Jelinek  <jakub@redhat.com>

        PR other/26208
        * unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
        (extract_cie_info): Handle S flag in augmentation string.
        (execute_cfa_program): If context->signal_frame, execute also
        fs->pc == context->ra instructions.
        (uw_frame_state_for): If context->signal_frame, don't subtract one
        from context->ra to find FDE.
        (uw_update_context_1): Set context->signal_frame to
        fs->signal_frame.
        (_Unwind_GetIPInfo): New function.
        * unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
        * unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
        of _Unwind_GetIP.
        * unwind-sjlj.c (_Unwind_GetIPInfo): New function.
        * unwind-generic.h (_Unwind_GetIPInfo): New prototype.
        * unwind-compat.c (_Unwind_GetIPInfo): New function.
        * libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
        * config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
        * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
        * config/i386/linux-unwind.h (x86_fallback_frame_state,
        x86_64_fallback_frame_state): Set fs->signal_frame.
        * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
        (MD_FROB_UPDATE_CONTEXT): Define unconditionally.
        (frob_update_context): Likewise.  Workaround missing S flag in
        Linux 2.6.12 - 2.6.16 kernel vDSOs.
        * config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
        Remove the psw_addr + 1 hack.

2006-02-27  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-structalias.c (get_constraint_for): Move code to deal
        with aggregates here.
        (find_func_aliases): Remove code for &<aggregate> from here.

2006-02-26  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (~X & C) eq/ne 0 as
        (X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
        Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
        as (X & C) ne/eq 0.

2006-02-26  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/19983
        * real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.

2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>

        * opts.c (decode_options): Do not handle flag_strength_reduce.
        (common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
        and OPT_fstrength_reduce.
        * tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
        flag_prefetch_loop_arrays for being nonzero.
        * common.opt (floop-optimize, frerun-loop-opt): Resurrected as
        no-ops.
        (fprefetch-loop-arrays-rtl): Removed.
        (flag_prefetch_loop_arrays): Do not specify the value.

        * doc/passes.texi: Update documentation of loop optimizer
        passes.
        * doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
        -frerun-loop-opt): Remove.

2006-02-26  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26421
        * tree-ssa-alias.c (find_used_portions): Don't treat parameters
        in function calls that are ADDR_EXPRs as using the whole structure.

2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>

        * common.opt (-floop-optimize, -frerun-loop-opt): Remove.
        * tree-pass.h (pass_loop_optimize): Remove.
        * passes.c (pass_loop_optimize): Never run it.
        * toplev.c (backend_init): Don't call init_loop.
        * opts.c (flag_loop_optimize_set): Remove.
        (decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
        (common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
        the old RTL loop optimizer when profiling enabled.
        * predict.c (tree_estimate_probability): Always strip builtin_expect.
        * cfgcleanup.c (try_forward_edges): Don't avoid killing loop
        pre-headers for the sake of the old RTL loop optimizer.
        * Makefile.in: Remove all references to loop.o.

        * doc/invoke.texi: Remove all references to -floop-optimize
        and -frerun-loop-opt.

2006-02-26  Zack Weinberg  <zackw@panix.com>

        * doc/md.texi (Machine Constraints): Refer to all files with paths
        relative to gcc directory (i.e. config/CPU/file).  Add missing
        @table @code ... @end table to M32C subsection.

2006-02-26  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
        (X & 1) == 0.
        <BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.

2006-02-26  Roger Sayle  <roger@eyesopen.com>
            James A. Morrison  <phython@gcc.gnu.org>

        PR middle-end/21137
        * fold-const.c (fold_binary) <EQ_EXPR>:  Fold ((X>>C1)&C2) eq/ne 0,
        when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
        new constant C2<<C1, or as (X<0) or (X,false) depending upon the
        signedness of the shift operation.

2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/26359
        * tree-ssa-alias.c (new_type_alias): Set fields for new tag.

2006-02-25  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (simplify_relational_operation_1):  Simplify
        (X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
        as X == 0, and some symmetry related transformations.
        Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.

2006-02-25  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/23673
        * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (X^Y) == 0 as X == Y
        and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
        symmetry related transformations.  Fold (X^C1) == C2 as
        X == (C1^C2).

2006-02-25  Juergen Weigert  <jw@suse.de>
        Richard Guenther  <rguenther@suse.de>

        * scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.

2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (gen_lowpart_or_truncate): Call
        simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.

2006-02-24  Diego Novillo  <dnovillo@redhat.com>

        * doc/invoke.texi: Move -fopenmp description to "Options for
        Code Generation".
        Remove reference to -lgomp.

2006-02-24  David Edelsohn  <edelsohn@gnu.org>

        * doc/install.texi: Require GNU tar version 1.14.

2006-02-24  Geoffrey Keating  <geoffk@apple.com>

        * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
        * doc/invoke.texi (C++ Dialect Options): Document
        -fno-use-cxa-get-exception-ptr.
        * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
        * configure: Regenerate.
        * c.opt (fuse-cxa-get-exception-ptr): New.
        * c-opts.c (c_common_handle_option): Handle
        OPT_fuse_cxa_get_exception_ptr.
        * c-common.c (flag_use_cxa_atexit): Update documentation.
        (flag_use_cxa_get_exception_ptr): New.
        * c-common.h (flag_use_cxa_get_exception_ptr): New.
        * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
        documentation.
        (C_COMMON_OVERRIDE_OPTIONS): New.

2006-02-24  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/24952
        * combine.c (try_combine): Explicitly check whether GET_CODE is
        a SET or a CLOBBER, instead on checking that it isn't a USE.

2006-02-24  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_comparison): New subroutine of fold_binary
        containing transformations common to both the equality and
        ordering relational operators, factored out of fold_binary.
        (fold_binary): Separate out the equality operators (EQ_EXPR
        and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
        LE_EXPR and GE_EXPR), calling fold_comparison to perform the
        transformations common to both.
        (fold_div_compare): Fix latent bugs in the previously unreachable
        LT_EXPR and GE_EXPR cases.

2006-02-24  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (rs6000_init_builtins): Change
        decl libname for clog to __clog on AIX.

        * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.

2006-02-24  Alan Modra  <amodra@bigpond.net.au>

        PR target/26453
        * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
        output traceback table for thunks.  Localise rs6000_stack_info call.

2006-02-23  Roger Sayle  <roger@eyesopen.com>
            Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * gthr-posix.h (__gthrw): Fix typo in comment.

2006-02-23  Geoffrey Keating  <geoffk@apple.com>

        * doc/cpp.texi (Character sets): Document that we do support
        input files to be in any character set.

2006-02-23  Jeff Law  <law@redhat.com>

        * tree.h (PHI_ARG_NONZERO): Remove.
        * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
        (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
        node to the new node.

        PR tree-optimization/26425
        * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
        min/max, then assume its varying.

2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/26316
        * rtlanal.c (enum may_trap_p_flags): New.
        (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
        MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
        (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
        (may_trap_after_code_motion_p): New function.
        * loop-invariant.c (find_identical_invariants): Fix dump formating.
        (find_invariant_insn): Use may_trap_after_code_motion_p.
        * rtl.h (may_trap_after_code_motion_p): Declare.

2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>

        * emit-rtl.c (immed_double_const): Cleanup.

2006-02-23  Daniel Berlin  <dberlin@dberlin.org>

        Fix PR tree-optimization/26376
        * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
        remove assert.

2006-02-23  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/26412
        * gimplify.c (omp_add_variable): Guard variable size decl test with
        DECL_SIZE (decl) check.

2006-02-23  Richard Guenther  <rguenther@suse.de>

        PR middle-end/26439
        * tree-ssa-structalias.c (find_func_aliases): Handle complex types
        like aggregate types.

2006-02-23  Jakub Jelinek  <jakub@redhat.com>

        * configure.ac: Add --with{,out}-long-double-128 configure option.
        (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
        * configure: Rebuilt.
        * config.in: Rebuilt.
        * doc/install.texi (Options specification): Document
        --with-long-double-128.

        * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
        (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
        * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
        (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.

2006-02-23  Aldy Hernandez  <aldyh@redhat.com>

        * config/s390/s390.c (override_options): Handle
        TARGET_DEFAULT_LONG_DOUBLE_128.

        * config/alpha/alpha.c (override_options): Handle
        TARGET_DEFAULT_LONG_DOUBLE_128.

        * config/sparc/sparc.c (sparc_override_options): Handle
        TARGET_DEFAULT_LONG_DOUBLE_128.

2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>

        * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
        (real-install-headers-tar, real-install-headers-cpio)
        (real-install-headers-cp): New targets.

2006-02-22  Richard Sandiford  <richard@codesourcery.com>

        * tree.h (variable_section): Delete.
        * varasm.c (variable_section): Delete.

2006-02-22  Paolo Bonzini  <bonzini@gnu.org>

        * install.texi: Add notes on install.texi2html.
        (Building in parallel): Do not use footnotes.

2006-02-21  Aldy Hernandez  <aldyh@redhat.com>

        PR libgomp/26234
        * doc/install.texi (Configuration): Document --disable-libgomp.

2006-02-21  Geoffrey Keating  <geoffk@apple.com>

        * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.

2006-02-21  Alexandre Oliva  <aoliva@redhat.com>

        * config/i386/sse.md (vec_extractv2df_1_sse): New.
        (vec_extractv2df_0_sse): New.

2006-02-21  Alexandre Oliva  <aoliva@redhat.com>

        * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
        * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
        * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
        * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
        to the result of the expression.
        (def_cfa_1): Adjust.
        (frame_pointer_cfa_offset): Rename to...
        (frame_pointer_fb_offset): ... this.  Adjust all uses.
        (convert_cfa_to_loc_list): Rename to...
        (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
        Pass it on to build_cfa_loc.
        (compute_frame_pointer_to_cfa_displacement): Rename to...
        (compute_frame_pointer_to_fb_displacement): ... this.  New
        offset parameter.  Use it in computation.
        (gen_subprogram_die): Compute cfa_fb_offset with the new
        macro, and use it to compute the fb loc list and the
        displacement.

2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
        replaced with register_operand.
        * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
        non-DREG is expensive.
        * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
        * config/bfin/bfin.md (movbi): Fix constraints and template for moves
        involving memory.

2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>

        * doc/install.texi2html: Use set -e.

2006-02-21  Richard Sandiford  <richard@codesourcery.com>

        * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
        (ASM_OUTPUT_SHARED_LOCAL): Delete.
        * doc/invoke.texi (-fshared-data): Delete.
        * common.opt (fshared-data): Delete.
        * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
        (assemble_static_space): Remove #if 0 code.
        * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
        (ASM_OUTPUT_SHARED_LOCAL): Poison.
        * config/cris/cris.h: Remove FIXME.

2006-02-21  Paolo Bonzini  <bonzini@gnu.org>

        * doc/sourcebuild.texi (Front End Directory): No more double-colon
        hooks.

2006-02-21  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/26379
        * combine.c (simplify_shift_const_1): Disable nested shifts
        optimization for vector shifts.

2006-02-20  Roger Sayle  <roger@eyesopen.com>

        PR tree-optimization/26361
        * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
        of unsigned integer types.

2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>

        * tree-chrec.c (eq_evolutions_p): New.
        * tree-chrec.h (eq_evolutions_p): Declared.
        * tree-data-ref.c: Fix formatting.
        (datadep_stats, dependence_stats): New.
        (gcd): Moved...
        (print_direction_vector): New.
        (dump_data_dependence_relation): Use print_direction_vector.
        (object_analysis, create_data_ref): Handle COMPONENT_REF.
        (compute_subscript_distance): Static.
        (initialize_data_dependence_relation): Static.  Get the number
        of loops surrounding the references from the callers, and initialize
        DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
        base_object_differ_p analyzers.
        (analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
        compute_overlap_steps_for_affine_1_2,
        analyze_subscript_affine_affine): Count the classified dependences.
        Print a message when a test failed.
        (can_use_analyze_subscript_affine_affine): New.
        (analyze_siv_subscript): Compute the data dependences on symbolic
        scevs that verify can_use_analyze_subscript_affine_affine.
        (chrec_steps_divide_constant_p): Returns true, false, or unknown.
        (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
        Handle symbolic scevs.
        (analyze_overlapping_iterations): Let symbolic affine scevs to be
        analyzed.
        (subscript_dependence_tester): Moved...
        (build_classic_dist_vector, build_classic_dir_vector): Don't use
        lambda_vector_clear on newly allocated vectors.  Get nb_loops from
        DDR_SIZE_VECT instead of getting it in parameter.
        (subscript_dependence_tester): ... here.  Take as a parameter
        loop_nest_depth.  Call build_classic_dist_vector and
        build_classic_dir_vector.
        (compute_affine_dependence): Update subscript_dependence_tester
        parameters.  Update datadep_stats counters.  Call
        compute_subscript_distance.
        (compute_self_dependence): Save the dist and dir vectors.  Call
        compute_subscript_distance.
        (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
        (compute_all_dependences): Reorder parameters as they were before
        conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
        compute_subscript_distance.  Update the use of
        compute_affine_dependence and initialize_data_dependence_relation.
        (find_data_references_in_loop): Handle COMPONENT_REF.
        (compute_data_dependences_for_loop): Initialize dependence_stats.
        Don't call build_classic_dist_vector and build_classic_dir_vector.
        Update the parameters of initialize_data_dependence_relation and
        compute_all_dependences.  Print the statistics from datadep_stats.
        (analyze_all_data_dependences): Static.  Not used until the pass for
        checking the data dependences is contributed.
        * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
        DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
        (initialize_data_dependence_relation, compute_affine_dependence,
        analyze_all_data_dependences, compute_subscript_distance): Removed.
        (print_direction_vector): New.
        * lambda.h (gcd): ... here.
        (lambda_vector_gcd): Moved here from gcd_vector.
        * lambda-code.c (gcd, gcd_vector): Removed.
        (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
        * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.

2006-02-20  Diego Novillo  <dnovillo@redhat.com>

        * ipa-type-escape.c: Tidy some comments and white space.
        * tree-ssa-operands.c: Likewise.

2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/25879
        * tree-pretty-print.c (debug_tree_chain): Walk the chains.
        (dump_decl_name): Do not walk the decl tree chains.
        * tree-pass.h (TDF_CHAIN): Remove.

2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>

        * Makefile.in (C): Remove
        (PROTO): Remove
        (.PHONY): Remove C and PROTO

2006-02-20  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/26236
        * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
        deprecated CHAR_TYPE tree code.

2006-02-20  Paolo Bonzini  <bonzini@gnu.org>

        * configure.ac (target_list): Add install-info, dvi, html.
        * configure: Regenerate.

        * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
        java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
        treelang/Make-lang.in: Do not use double-colon rules.

2006-02-20  Daniel Berlin  <dberlin@dberlin.org>

        * tree.h (struct tree_memory_tag): Add is_used_alone member.
        (TMT_USED_ALONE): New macro.
        * tree-pass.h (PROP_tmt_usage): New property.
        (TODO_update_tmt_usage): New todo.
        * tree-ssa-alias.c (updating_used_alone): New variable.
        (recalculate_used_alone): New function.
        (compute_may_aliases): Set updating_used_alone, call
        recalculate_used_alone.
        * tree-sra.c (pass_sra): Note that this pass destroys
        PROP_tmt_usage, and add TODO_update_tmt_usage.
        * tree-ssa-forwprop.c (pass_forwprop): Ditto.
        * tree-flow.h (updating_used_alone): Prototype.
        (recalculate_used_alone): Ditto.
        * passes.c (execute_todo): Add code to set updating_used_alone,
        and call recalculate.
        * tree-ssa-operands.c (add_virtual_operand): Only append bare def
        for clobber if used alone, and add assert to verify used_alone
        status.

2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>

        * config/s390/s390.c (legitimize_pic_address): Assertions checking
        for non tls symbols added.
        (legitimize_address): Do nothing for PLUS expressions if one of the
        addends is a tls symbol reference.

2006-02-20  Paolo Bonzini  <bonzini@gnu.org>

        PR bootstrap/25476

        * Makefile.in (LDFLAGS): Define from autoconf substitution.

        * Makefile.in (BOOTSTRAPPING): New.
        (quickstrap): New definition if BOOTSTRAPPING=yes.

        * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
        * configure.ac: Substitute all_selected_languages with the languages
        that were configured.  For all the other variables except
        lang_specs_files, include all the languages in the tree.
        * configure: Regenerate.

        * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
        if there is one.  Run the commands to run fixincludes in the same
        subshell.

        * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
        * doc/install.texi: Document exact conventions for searching target tools.
        Document --with-build-time-tools.  Document toplevel bootstrap.  Document
        something more about building an Ada cross-compiler.  Don't list GNU Make
        requirements which affect all platforms.

2006-02-19  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/19543
        * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
        only equivalent if the have both the same mode and precision.

2006-02-20  Ben Elliston  <bje@au.ibm.com>

        * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.

2006-02-19  Roger Sayle  <roger@eyesopen.com>
            Steven Bosscher  <stevenb.gcc@gmail.com>

        * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
        constant pool references to identify stack mode constants.
        * rtlanal.c (constant_pool_constant_p): New predicate to check
        whether operand is a floating point constant in the pool.
        * rtl.h (constant_pool_constant_p): Prototype here.
        * loop.c (scan_loop): Avoid hoisting constants from the constant
        pool on STACK_REGS targets.
        (load_mems): Likewise.
        * loop-invariant.c (get_inv_cost): Make hoisting constant pool
        loads into x87 registers expensive in terms of register pressure.

2006-02-19  Roger Sayle  <roger@eyesopen.com>

        * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
        __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.

2006-02-19  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
        * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.

2006-02-19  Daniel Berlin  <dberlin@dberlin.org>

        * doc/invoke.texi: Document -fipa-pta.
        * common.opt: Add ipa-pta option.
        * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
        (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
        (do_ds_constraint): Ditto.
        (get_constraint_for): Only add to referenced_vars if
        referenced_vars exists.
        (insert_into_field_list): Rewrite to do this unsorted.
        (insert_into_field_list_sorted): Rename old insert_into_field_list
        to this.
        (create_function_info_for): Use insert_into_field_list_sorted.
        (create_variable_info_for): Rewrite so it uses unsorted version,
        since the field list is sorted.
        (intra_create_variable_infos): Only add to referenced_vars if
        referenced_vars exists.
        (ipa_pta_execute): Init heapvars, and delete when done.
        * passes.c (init_optimization_passes): Add call to pass_ipa_pta.

2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * doc/install.texi: Add missing `@samp'.

2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>

        * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
        Use the arguments.

2006-02-18  Mark Wielaard  <mark@klomp.org>

        * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
        who added new 4.1 features, bug fixes and integration support.

2006-02-18  David Edelsohn  <edelsohn@gnu.org>

        PR target/26350
        * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
        MEM for ABI_V4 pic.

2006-02-18  Richard Sandiford  <richard@codesourcery.com>

        * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
        * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
        (copy_insn_1): Likewise.  Don't copy each field individually.
        Reindent.
        * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
        of RTX_SIZE.
        * reload1.c (eliminate_regs): Use shallow_copy_rtx.
        * rtl.c (rtx_size): Rename variable to...
        (rtx_code_size): ...this.
        (rtx_size): New function.
        (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
        (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
        Reindent.
        (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
        * rtl.h (rtx_code_size): New variable.
        (rtx_size): Change from a variable to a function.
        (RTX_SIZE): Rename to...
        (RTX_CODE_SIZE): ...this.

        PR target/9703
        PR tree-optimization/17106
        * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
        (Anchored Addresses): New section.
        * doc/invoke.texi (-fsection-anchors): Document.
        * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
        (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
        (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
        * hooks.c (hook_bool_mode_rtx_false): New function.
        * hooks.h (hook_bool_mode_rtx_false): Declare.
        * gengtype.c (create_optional_field): New function.
        (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
        SYMBOL_REF_IN_BLOCK_P is true.
        * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
        (min_anchor_offset, max_anchor_offset): Likewise.
        (use_anchors_for_symbol_p): New hook.
        * toplev.c (compile_file): Call output_object_blocks.
        (target_supports_section_anchors_p): New function.
        (process_options): Check that -fsection-anchors is only used on
        targets that support it and when -funit-at-a-time is in effect.
        * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
        if the decl doesn't have one.
        * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
        * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
        of force_const_mem through use_anchored_address.
        (expand_expr_constant): New function.
        (expand_expr_addr_expr_1): Call it.  Use the same modifier when
        calling expand_expr for INDIRECT_REF.
        (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
        for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
        * expr.h (use_anchored_address): Declare.
        * loop-unroll.c: Don't declare rtx vectors here.
        * explow.c: Include output.h.
        (validize_mem): Call use_anchored_address.
        (use_anchored_address): New function.
        * common.opt (-fsection-anchors): New switch.
        * varasm.c (object_block_htab, anchor_labelno): New variables.
        (hash_section, object_block_entry_eq, object_block_entry_hash)
        (use_object_blocks_p, get_block_for_section, create_block_symbol)
        (use_blocks_for_decl_p, change_symbol_section): New functions.
        (get_variable_section): New function, split out from assemble_variable.
        (make_decl_rtl): Create a block symbol if use_object_blocks_p and
        use_blocks_for_decl_p say so.  Use change_symbol_section if the
        symbol has already been created.
        (assemble_variable_contents): New function, split out from...
        (assemble_variable): ...here.  Don't output any code for
        block symbols; just pass them to place_block_symbol.
        Use get_variable_section and assemble_variable_contents.
        (get_constant_alignment, get_constant_section, get_constant_size): New
        functions, split from output_constant_def_contents.
        (build_constant_desc): Create a block symbol if use_object_blocks_p
        says so.  Or into SYMBOL_REF_FLAGS.
        (assemble_constant_contents): New function, split from...
        (output_constant_def_contents): ...here.  Don't output any code
        for block symbols; just pass them to place_section_symbol.
        Use get_constant_section and get_constant_alignment.
        (force_const_mem): Create a block symbol if use_object_blocks_p and
        use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
        (output_constant_pool_1): Add an explicit alignment argument.
        Don't switch sections here.
        (output_constant_pool): Adjust call to output_constant_pool_1.
        Switch sections here instead.  Don't output anything for block symbols;
        just pass them to place_block_symbol.
        (init_varasm_once): Initialize object_block_htab.
        (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
        (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
        (place_block_symbol, get_section_anchor, output_object_block)
        (output_object_block_htab, output_object_blocks): New functions.
        * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
        (TARGET_ASM_OUT): Include it.
        (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
        (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
        (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
        (TARGET_INITIALIZER): Include them.
        * rtl.c (rtl_check_failed_block_symbol): New function.
        * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
        (block_symbol, object_block): New structures.
        (rtx_def): Add a block_symbol field to the union.
        (BLOCK_SYMBOL_CHECK): New macro.
        (rtl_check_failed_block_symbol): Declare.
        (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
        (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
        (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
        (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
        * output.h (output_section_symbols): Declare.
        (object_block): Name structure.
        (place_section_symbol, get_section_anchor, default_asm_output_anchor)
        (default_use_anchors_for_symbol_p): Declare.
        * Makefile.in (RTL_BASE_H): Add vec.h.
        (explow.o): Depend on output.h.
        * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
        (TARGET_MAX_ANCHOR_OFFSET): Likewise.
        (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
        (rs6000_use_blocks_for_constant_p): New function.

2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.

2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/25680
        * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
        IMAGPART_EXPR.

2006-02-18  Diego Novillo  <dnovillo@redhat.com>

        * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
        is_aliased.
        Update all users.

2006-02-18  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/26334
        * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
        instead of DECL_REGISTER.

2006-02-18  Olivier Hainque  <hainque@adacore.com>

        PR ada/13408
        * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.

2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>

        PR target/24837
        * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
        * opth-gen.awk: Handle Var and InverseMask together.
        * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
        * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
        (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
        (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
        used together.
        (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
        LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
        * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
        UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
        LINUX_DYNAMIC_LINKER): Define.
        (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
        * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
        TARGET_GLIBC.
        * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
        (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
        * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
        (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
        (TARGET_C99_FUNCTIONS): Don't define.
        * config/i386/linux.h (DYNAMIC_LINKER): Rename to
        GLIBC_DYNAMIC_LINKER.
        (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
        * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
        GLIBC_DYNAMIC_LINKER64): Define.
        (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
        LINUX_DYNAMIC_LINKER64.
        * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
        (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
        * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
        (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
        * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
        (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
        * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
        GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
        UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
        (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
        and LINUX_DYNAMIC_LINKER32.
        * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
        (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
        * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
        (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
        * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
        TARGET_GLIBC.
        * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
        (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
        UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
        CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
        LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
        (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
        (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
        * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
        UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
        LINUX_DYNAMIC_LINKER): Define.
        (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
        * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
        GLIBC_DYNAMIC_LINKER64): Define.
        (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
        LINUX_DYNAMIC_LINKER64.
        * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
        (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
        * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
        UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
        LINUX_DYNAMIC_LINKER): Define.
        (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
        (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
        * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
        GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
        UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
        LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
        (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
        (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
        (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
        * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
        (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
        * doc/invoke.texi (-muclibc): Remove caveat about supported
        targets.

2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>

        * doc/cpp.texi (__TIMESTAMP__): Document.

2006-02-17  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/25600
        * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
        C is one less than the width of X (and related transformations).
        * simplify-rtx.c (simplify_unary_operation_1): Transform
        (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
        depending on STORE_FLAG_VALUE, were C is one less then the
        width of X.

2006-02-17  Daniel Berlin  <dberlin@dberlin.org>

        Fix PR tree-optimization/26341
        * tree-ssa-operands.c (add_virtual_operand): Remove assert
        about NAME_MEMORY_TAG's.

2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/26255
        * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
        with hardware float support, and software float support.  Add fcpy
        alternative to hardware patterns.  Add alternatives to copy between
        general and floating-point registers to the 32-bit pattern.
        * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
        secondary reload to load a QI or HI mode constant into a floating
        point register.
        * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
        * pa64-regs.h (VALID_FP_MODE_P): Likewise.

2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/26272
        * config/rs6000/darwin.md (load_macho_picbase_si): Add
        pc to the pattern.
        (load_macho_picbase_di): Likewise.

2006-02-16  Jeff Law  <law@redhat.com>

        * tree-vrp.c (set_value_range_to_nonnegative): New function.
        (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
        (ssa_name_nonzero_p): Likewise.
        (get_value_range): Return NULL if VRP is not running.
        (extract_range_from_expr): Fallback to tree_expr_XXX_p if
        VRP routines do not discover a range.
        (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
        * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
        * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
        (tree_expr_nonnegative_p): Similarly.
        * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
        (restore_nonzero_vars_to_original_value): Remove.
        (unsafe_associative_fp_binop): Remove.
        (tree_ssa_dominator_optimize): Remove initialization and
        finalization of nonzero_vars and nonzero_vars_stack.
        (dom_opt_initialize_block): No longer push marker on
        nonzero_vars_stack.
        (dom_opt_finalize_block): No longer call
        restore_nonzero_vars_to_original_value.
        (record_equivalences_from_phis): No longer look for
        nonzero PHI arguments.
        (cprop_into_successor_phis): No longer propagate nonzero
        property into PHI arguments.  Lose unused argument.  Caller
        updated.
        (record_equivalences_from_stmt): No longer record nonzero
        values for SSA_NAMEs.
        (lookup_avail_expr): No longer use nonzero_vars.

        * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
        for sizetype when sizetype is unsigned.

2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>

        PR rtl-optimization/25603
        * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
        (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
        * reload1.c (choose_reload_regs): Added call of regno_clobbered_p
        with new meaning of SETS.

2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>

        PR target/20353
        PR target/24578
        PR target/24837
        * config/linux.opt: New file.
        * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
        LINUX_DYNAMIC_LINKER): Define.
        (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
        * config.gcc (*-*-linux*): Define extra_options.
        (*-*-*uclibc*): Define UCLIBC_DEFAULT.
        (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
        * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
        GLIBC_DYNAMIC_LINKER.
        * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
        (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
        * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
        (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
        * doc/invoke.texi (GNU/Linux Options): New section.

2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config/sparc/sparc.md (setjmp): Rewrite.
        (setjmp_32): Delete.
        (setjmp_64): Likewise.

2006-02-16  Daniel Berlin <dberlin@dberlin.org>

        * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
         previous change.

2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>

        * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
        read-write uses.

2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/26296
        * Makefile.in (loop-invariant.c): Add except.h dependency.
        * loop-invariant.c: Include except.h.
        (find_invariant_insn): Ignore insns satisfying can_throw_internal.

2005-02-16  Paul Brook  <paul@codesourcery.com>

        * reload1.c (emit_reload_insns): Invalidate dead input registers used
        for reloads.

2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>

        PR rtl-optimization/25636
        * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
        when deciding whether an insn is an initializing insn.

2006-02-15 Daniel Berlin  <dberlin@dberlin.org>

        * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
        (tree_code_size): Ditto.
        * tree.h (struct tree_memory_tag): Remove parent_var.
        (struct tree_struct_field_tag): New.
        (SFT_OFFSET): New.
        (SFT_SIZE): New.
        (union tree_node): Add sft member.
        * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
        specially here.
        (create_sft): Add size and offset argument, set SFT_OFFSET and
        SFT_SIZE.
        (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
        * treestruct.def: Add TS_STRUCT_FIELD_TAG.
        * tree-flow-inline.h (get_subvar_at): Update for
        SFT_OFFSET/SFT_SIZE.
        (var_can_have_subvars): Ditto.
        (overlap_subvar): Ditto.
        * print-tree.c (print_node): Print out interesting things for
        SFT's.
        * tree-flow.h (struct subvar): Remove offset and size members.
        * tree-ssa-operands.c (get_expr_operands): Update for
        get_indirect_ref_operands changes.
        (get_indirect_ref_operands): Call add_virtual_operand instead of
        add_stmt_operand.  Only recurse on base var if requested.
        (access_can_touch_variable): New function.
        (add_stmt_operand): Split virtual operand handling into ...
        (add_virtual_operand): Here.  Add offset, size, and for_clobber
        arguments.  Prune alias sets.
        (add_call_clobber_ops): Call add_virtual_operand.

2006-02-15  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/26300
        * combine.c (make_extraction): Bail out if ORIG_POS is negative.

        * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
        than TREE_CODE as index into omp_clause_num_ops array.

2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>

        PR rtl-optimization/26184
        * modulo-sched.c (generate_reg_moves): Free bitmap vector
        uses_of_defs.
        * modulo-sched.c (sms_schedule): Free g_arr pointer.
        * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
        must_precede, must_follow and tobe_scheduled.

        PR other/26147
        * opts.c (common_handle_option): Free new_option pointer.
        * df-core.c (df_analyze): Free postorder pointer.

2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>

        * Makefile.in: Fix the examples about the use of stamps

2006-02-15  Michael Matz  <matz@suse.de>

        PR middle-end/22275

        * stor-layout.c (layout_decl): Zero-width bitfields aren't
        influenced by maximum_field_alignment or DECL_PACKED.
        (update_alignment_for_field): Ditto.
        (place_field): Ditto.
        * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
        this behaviour.

2006-02-15  Paolo Bonzini  <bonzini@gnu.org>

        * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
        (debug_flow_info): Pass it.
        * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
        * bb-reorder.c (reorder_basic_blocks): Likewise.
        * cfgcleanup.c (rest_of_handle_jump2): Likewise.
        * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
        * flow.c (life_analysis, recompute_reg_usage): Likewise.
        * gcse.c (gcse_main, bypass_jumps): Likewise.
        * ifcvt.c (rest_of_handle_if_conversion): Likewise.
        * local-alloc.c (rest_of_handle_local_alloc): Likewise.
        * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
        * profile.c (compute_branch_probabilities, branch_prob): Likewise.
        * rtl.h (dump_flow_info): Adjust prototype.
        * tracer.c (rest_of_handle_tracer, tracer): Likewise.
        * var-tracking.c (variable_tracking_main): Likewise.
        * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
        * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
        options.

2006-02-15  Marcin Dalecki <martin@dalecki.de>

        * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
        construction.

2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/26209
        * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
        * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
        eh edges.
        * tree-cfg.c (replace_uses_by): Do not alter cfg.

2006-02-14  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/23670
        * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
        (X,Y) and the corresponding symmetry related transformations.
        (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
        (X,Y) and its symmetry related transformations.

2006-02-14  Roger Sayle  <roger@eyesopen.com>

        * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
        and GEU.

2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>

        * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.

2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        PR bootstrap/26053
        * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
        support COMDAT group.
        * configure: Regenerate.

2006-02-14  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/26279
        PR middle-end/26280
        PR middle-end/26283
        * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.

2006-02-14  Daniel Berlin  <dberlin@dberlin.org>

        Fix PR tree-optimization/26260

        * doc/invoke.texi (max-fields-for-field-sensitive): Document
        param.
        * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
        * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
        * tree-ssa-structalias.c (create_variable_info_for): Use
        MAX_FIELDS_FOR_FIELD_SENSITIVE.

2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>

        * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
        Document.
        * tree-ssa-loop-niter.c (number_of_iterations_ne,
        number_of_iterations_lt, number_of_iterations_cond): Remember the shape
        of the ending condition.
        * tree-ssa-loop-manip.c: Include params.h.
        (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
        tree_unroll_loop): New functions.
        * tree-pass.h (pass_loop_prefetch): Declare.
        * loop.c (rest_of_handle_loop_optimize): Test for
        -fprefetch-loop-arrays-rtl.
        * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
        * timevar.def (TV_TREE_PREFETCH): New timevar.
        * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
        pass_loop_prefetch): New.
        * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
        (cleanup_tree_cfg_loop): Call scev_reset.
        * common.opt (fprefetch-loop-arrays-rtl): Add.
        * tree-ssa-loop-prefetch.c: New file.
        * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
        (new_temp_expr_table): Initialize expr_vars.
        (free_temp_expr_table): Cleanup expr_vars.
        (check_replaceable, find_replaceable_in_bb): Prevent accumulating
        expressions from being merged into one.
        * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
        (struct tree_niter_desc): Add control, bound and cmp fields.
        (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
        Declare.
        * Makefile.in (tree-ssa-loop-prefetch.o): Add.
        (tree-cfgcleanup.o): Add SCEV_H dependency.
        (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
        * passes.c (init_optimization_passes): Add pass_loop_prefetch.

2006-02-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26258
        * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
        in PHI argument processing.

2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>

        * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
        new expression in the requested machine mode.

2006-02-13  Roger Sayle  <roger@eyesopen.com>

        * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
        directly, instead let do_compare_rtx_and_jump handle this for us.
        * expr.c (expand_expr_real_1): Likewise.
        * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
        before do_jump_by_parts_greater.
        (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
        * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.

2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa/quadlib.c: Use defines instead of enum qfcmp_magic.

2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/26235
        * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
        (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
        format.

2006-02-13  Jeff Law  <law@redhat.com>

        * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
        TRUTH_XOR_EPR.

2006-02-13  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/26092
        * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
        twice if decl is a builtin.  When trying again, call get_callee_fndecl
        first to verify it is still a builtin.

2006-02-13  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (base_type_die): Don't add AT_name here.
        (subrange_type_die): Don't add AT_name here.
        (modified_type_die): Rearrange code flow.  Do add AT_name here.

2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/26247
        PR rtl-optimization/26248
        * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.

2006-02-13  Richard Sandiford  <richard@codesourcery.com>

        * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
        * config/fixtfdi.c: Likewise.
        * config/fixunstfdi.c: Likewise.
        * config/floatditf.c: Likewise.

2006-02-13  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/24427
        * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
        into (X,C2) if C1 is a subset of the bits of C2.  Transform
        (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
        (X&(C1&~C2))|C2.
        <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).

2006-02-13  Josh Conner  <jconner@apple.com>

        PR target/25376
        * varasm.c (function_section): Check for section name before
        calling select_section on targets that define
        USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
        unlikely_text_section instead of hot_function_section if
        first_function_block_is_cold.

2006-02-13  J"orn Rennecke <joern.rennecke@st.com>

        PR middle-end/25335
        * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.

2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/26222
        * function.c (assign_stack_temp_for_type): Do not reuse stack slots
        after tree->rtl expansion.
        * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
        before passing it to emit_move_insn.

2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>

        * doc/invoke.texi (-Write-strings): Document that it is enabled by
        default.
        * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
        Clarify documentation.
        * c-common.h (warn_write_strings): Remove.
        * c-common.c (warn_write_strings): Likewise.
        * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
        default for C++.

2006-02-12  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/25724
        * dojump.c (do_jump): Call do_compare_rtx_and_jump.
        (do_jump_parts_zero_rtx): New function renamed from
        do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
        (do_jump_parts_equality_rtx): New function split out from
        do_jump_parts_equality.  Old implementation renamed as above.
        Call do_jump_parts_zero_rtx if either operand is zero.
        (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
        do all of the heavy lifting.
        (do_compare_rtx_and_jump): Handle multi-word comparisons by
        calling either do_jump_by_parts_greater_rtx or
        do_jump_by_parts_equality_rtx.
        * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
        * expmed.c (do_cmp_and_jump): Now multi-word optimization has
        moved to do_compare_rtx_and_jump, call it directly.
        * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
        mode argument.  Call do_compare_rtx_and_jump.
        (emit_case_nodes): Update calls to do_jump_if_equal.

2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/26225
        * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.

2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/26232
        * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.

2006-02-11  Jason Merrill  <jason@redhat.com>

        PR tree-opt/24365
        * tree-inline.c (declare_return_variable): Just don't use the
        modify target if it's a gimple complex reg and the return slot
        isn't.

2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * doc/contrib.texi: Update my entry.

2006-02-10  Geoffrey Keating  <geoffk@apple.com>

        * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.

2006-02-10  Diego Novillo  <dnovillo@redhat.com>

        * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
        expensive.

2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>

        * doc/invoke.texi (-floop-optimize2): Removed.
        * toplev.c (process_options): Remove handling of flag_loop_optimize2.
        * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
        Test flag_branch_on_count_reg only if HAVE_doloop_end.
        * common.opt (floop-optimize2): Removed.
        (fmove-loop-invariants): Enabled by default.

2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>

        * tree-if-conv.c (combine_blocks): Free the result of
        get_loop_exit_edges.

2006-02-10  Jeff Law  <law@redhat.com>

        * fold-const.c (tree_expr_nonzero_p): Fix thinko.

        PR tree-optimization/26213
        * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
        loop trying to follow SSA_NAME_VALUE chains.

2006-02-10  Richard Guenther  <rguenther@suse.de>

        * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
        deal with structures that end in implicitly variable sized arrays.

2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/24762
        * df-scan.c (df_bb_refs_record): Record correct registers defined on
        eh edges.

2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
        (struct ivopts_data): Add regs_used field.
        (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
        (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
        instead of loop_data->regs_used;
        (free_loop_data): Do not free aux fields for loops.
        (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
        and tree_ssa_iv_optimize_finalize.

2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.

2006-02-09  J"orn Rennecke <joern.rennecke@st.com>

        PR target/26141
        * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
        computing the effective result type.

2006-02-09  J"orn Rennecke <joern.rennecke@st.com>

        PR inline-asm/16194
        * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
        (tree_overlaps_hard_reg_set): Declare.
        * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
        type and signature to match function type expected by walk_tree.
        (tree_overlaps_hard_reg_set): New function.
        (decl_conflicts_with_clobbers_p): Rename to:
        (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
        Use tree_overlaps_hard_reg_set.  Changed caller.
        * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
        decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
        * cris.c (cris_md_asm_clobbers): Likewise.

2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>

        * reload1.c (emit_input_reload_insns): Delete code that tries to
        inherit using find_equiv_reg.

2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>

        * c-common.h (flag_const_strings): Don't declare.
        * c-common.c (flag_const_strings): Remove.
        * c.opt (fconst_strings): Remove.
        * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
        <OPT_Wwrite_strings>: Don't set flag_const_strings.
        (c_common_init_options): Don't set flag_const_strings.
        * doc/invoke.texi (-fno-const-strings): Remove documentation.

2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>

        * arm.md (tlobits_cbranch): New pattern.
        * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
        testing a single bit.

2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/26179
        * tree-ssa-pre.c (create_component_ref_by_pieces):
        Handle RETURN_DECL like VAR_DECL.

2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>

        PR middle-end/26134
        * fold-const.c (fold_indirect_ref_1): Fold
        "*(foo *)&complexfoo" to "__real__ complexfoo"
        and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".

2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>

        * tree-flow-inline.h (var_can_have_subvars):
        Volatile variables should not have subvariables.

2006-02-09  Diego Novillo  <dnovillo@redhat.com>

        PR 26180
        * tree-vrp.c (vrp_int_const_binop): Detect overflow when
        multiplying unsigned values.
        Tidy comments.

2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config/sparc/sparc.c (tls_call_delay): Fix oversight.

2006-02-08  Jason Merrill  <jason@redhat.com>

        PR c++/25979
        * tree.def: Elaborate on difference from MODIFY_EXPR.
        * doc/c-tree.texi (INIT_EXPR): Likewise.
        * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
        (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
        (gimplify_target_expr): Likewise.
        (gimplify_cond_expr): Remove target handling.
        (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
        (gimplify_expr): Clobber it here.
        (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
        Do return slot optimization if we have an INIT_EXPR.

        PR tree-opt/24365
        * tree-inline.c (declare_return_variable): Also clear
        DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.

        PR c++/16405
        * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.

        PR middle-end/22439
        * gimplify.c (gimplify_one_sizepos): Fix typo.

2006-02-08  Jeff Law  <law@redhat.com>

        PR tree-optimization/21417
        * tree-ssa-threadedge.c (thread_across_edge): Reject threading
        across a backedge if the control statement at the end of the
        block is data dependent on other statements in the same block.
        (record_temporary_equivalences_from_stmts): Remove over-conservative
        test for threading across backedges.

        * tree-ssa-dce.c (remove_dead_statement): When removing a dead
        control statement, handle all three special cases in the same
        manner as they all have the same desired solution.  No longer
        special case edge flag updating when the post dominator is
        the exit block.

2006-02-08  Roger Sayle  <roger@eyesopen.com>

        * tree.def (CHAR_TYPE): Remove.
        * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
        * dwarf2out.c (base_type_die, is_base_type): Likewise.
        (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
        (gen_string_type_die): Delete unreachable function.

        * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
        * tree.c (build_int_cst_wide, type_contains_placeholder_1,
        type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
        * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
        * builtins.c (type_to_class): Likewise.
        * fold-const.c (fold_convert, build_range_check,
        merge_ranges): Likewise.
        * expr.c (count_type_elements): Likewise.
        * c-pretty-print.c (pp_c_type_specifier): Likewise.
        * stor-layout.c (layout_type): Likewise.
        * ipa-type-escape.c (type_to_consider): Likewise.
        * gimplify.c (omp_firstprivatize_type_sizes,
        gimplify_type_sizes): Likewise.
        * explow.c (promote_mode): Likewise.
        * tree-sra.c (is_sra_scalar_type): Likewise.
        * varasm.c (output_constant): Likewise.
        * tree-inline.c (remap_type_1): Likewise.
        * convert.c (convert_to_pointer, convert_to_real,
        convert_to_integer, convert_to_complex): Likewise.

2006-02-08  Daniel Berlin  <dberlin@dberlin.org>

        * df-scan.c (df_def_record_1): A set destination may
        be a parallel regardless of mode.

2006-02-08  Roger Sayle  <roger@eyesopen.com>

        PR target/22209
        * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
        * config/mips/_tilib.c: Remove.
        * config/fixtfdi.c: New libgcc source file.
        * config/fixunstfdi.c: New source file.
        * config/floatditf.c: New source file.
        * config/floatunditf.c: New souce file.
        * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
        files above instead of config/mips/_tilib.c.
        * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.

2006-02-08  Jeff Law  <law@redhat.com>

        PR tree-optimization/26169
        * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
        threading jumps.

2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>

        * df.h (DF_REG_SIZE): Return the length of the initialized
        part of the array.

2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>

        * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
        __muldf3): Return a correctly signed zero.

2006-02-08  Paolo Bonzini  <bonzini@gnu.org>

        * passes.c (register_one_dump_file): Accept the current properties
        instead of pass number.  Adjust call to dump_register.  Remove
        duplicated code.
        (register_dump_files): Now a wrapper around...
        (register_dump_files_1): ... this one.  Do not modify the pass
        structure.
        (next_pass_1): Cosmetic fix.
        (execute_todo): Keep second parameter only.  Use curr_properties
        instead of fetching it from the pass structure.  Check and set
        last_verified.
        (execute_one_pass): Handle TODO_set_props.  Use curr_properties
        instead of fetching it from the pass structure.  Fix calls to
        execute_todo.  Update curr_properties and initialize .vcg RTL dump
        after running the pass.  Reset last_verified.
        * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
        at the beginning.
        (FIRST_AUTO_NUMBERED_DUMP): New.
        (dump_register): Remove "num" parameter, assign it within the
        function.
        (get_dump_file_name): Modify template for dumps.
        * tree-dump.h (dump_register): Adjust prototype.
        * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
        (PROP_trees): Add PROP_gimple_lomp.
        (TODO_set_props): New.
        * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
        * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
        * cfgexpand.c (pass_expand): Destroy PROP_trees.

2006-02-08  Jakub Jelinek  <jakub@redhat.com>

        * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
        (sparc64-*-linux*): Likewise.
        * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
        * config/sparc/t-linux: New file.
        * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
        __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
        (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
        -m32 -mlong-double-128.

        * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
        * config/alpha/t-linux: New file.
        * config/alpha/libgcc-alpha-ldbl.ver: New file.

        * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
        __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
        (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
        * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
        __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
        (CPP_ARCH32_SPEC): Remove.

2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>

        PR tree-optimization/26145
        * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
        bbs pointer.

2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/26109
        * pa.c (attr_length_indirect_call): Don't return length 8 for distances
        >= 240000 when generating code for SOM runtime.
        (output_indirect_call): Don't use "b,l" instruction for indirect calls
        to $$dyncall when generating code for SOM runtime..

2006-02-07  Dirk Mueller  <dmueller@suse.com>

        PR c++/18150
        * doc/invoke.texi (-Wsequence-point): Update documentation
        that -Wsequence-point is implemented for C++ as well.

2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
        * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
        (LIB_SPEC): Likewise.
        * doc/invoke.texi (SPARC options): Document -pthread.

2006-02-07  Geoffrey Keating  <geoffk@apple.com>

        * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
        PIC addresses.

2006-02-07  Roger Sayle  <roger@eyesopen.com>

        * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
        Correct comment describing BOOLEAN_TYPE.

2006-02-07  Dirk Mueller  <dmueller@suse.com>

        * c.opt: C++ frontend supports -Wdiv-by-zero.
        * c-opts.c (c_common_handle_option): Remove dead case.

2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * configure.ac (TLS assembler check): Do not enable TLS by
        default on SPARC/Solaris before version 10.
        * configure: Regenerate.

2006-02-07  David Edelsohn  <edelsohn@gnu.org>

        * doc/invoke.texi (xl-compat): Document conversion and support
        routine names.

2006-02-07  Jeff Law  <law@redhat.com>

        * tree-vrp.c (find_conditional_asserts): Update comments.
        (simplify_stmt_for_jump_threading): New.
        (identify_jump_threads, finalize_jump_threads): New.
        (vrp_finalize): Call identify_jump_threads.
        (execute_vrp): Call finalize_jump_threads.
        * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
        (vrp_element, vrp_data, vrp_element_p): Remove.
        (vrp_hash_elt, vrp_variables_stack): Remove.
        (vrp_hash, vrp_eq, record_range): Remove.
        (simplify_cond_and_lookup_avail_expr): Remove.
        (extract_range_from_cond): Remove.
        (thread_across_edge): Relocated into tree-ssa-threadedge.c.
        (simplify_stmt_for_jump_threading): New.
        (dom_thread_across_edge): New wrapper.
        (tree_ssa_dominator_optimize): No longer initialize or
        finalize any of the VRP datastructures.  Remove iteration
        step and simplify as a result of removal of iteration step.
        (pass_dominator): Perform a cfg cleanup after DOM.
        (dom_opt_finalize_block): Use the new common routines
        for threading jumps.  Simplify stack management slightly.
        No longer need to unwind VRP state.
        (record_equivalences_from_incoming_edge): No longer record
        VRP information.
        (eliminate_redundant_computations): No longer call
        simplify_cond_and_lookup_avail_expr.
        * tree-flow.h (potentially_threadable_block): Prototype.
        (thread_across_edge): Likewise.
        * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
        (tree-ssa-threadedge.o): Add dependencies.
        * tree-ssa-threadedge.c: New file.
        * passes.c (init_optimization_passes): Merge PHIs before
        calling VRP.  Run VRP again late in the SSA optimization pipeline.

2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * df-core.c (df_set_blocks): Do not dereference function pointers.
        (df_finish1): Likewise.
        (df_hybrid_search_forward): Likewise.
        (df_hybrid_search_backward): Likewise.
        (df_iterative_dataflow): Likewise.
        (df_analyze_problem): Likewise.
        (df_compact_blocks): Likewise.
        (df_dump): Likewise.
        * df-scan.c (df_rescan_blocks): Likewise.
        (df_record_entry_block_defs): Likewise.

        * genconditions.c (write_conditions): Guard the definition of
        'insn_conditions' with the check on GCC version.
        (write_writer): Guard the traversal 'insn_conditions' with
        the check on GCC version.

2006-02-07  Richard Guenther  <rguenther@suse.de>

        PR c++/26140
        Revert
        2006-01-30  Richard Guenther  <rguenther@suse.de>
        PR c++/23372
        * gimplify.c (gimplify_target_expr): Handle easy cases
        without creating a temporary.

2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>

        * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
        use of float in probability computations.  Use edge probabilities
        in place of statically computed probabilities.
        (min_spec_prob): New static variable.
        (schedule_insns): Initialize it.
        (GET_SRC_PROB): Removed.
        * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.

2006-02-07  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/24444
        * config/ia64/unwind-ia64.c: Revert last change.
        * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
        (INCOMING_FRAME_SP_OFFSET): Define.

2006-02-06  Roger Sayle  <roger@eyesopen.com>

        * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.

2006-02-07  Ben Elliston  <bje@au.ibm.com>

        * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
        (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
        (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
        (ix86_return_in_memory): Handle TDmode.
        (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
        (ix86_value_regno): Return non-TDmode decimal float modes in %eax.

2006-02-06  Richard Sandiford  <richard@codesourcery.com>

        * reorg.c (dbr_schedule): Use dump_file instead of file.

2006-02-06  Steve Ellcey  <sje@cup.hp.com>

        PR target/25917
        * config/ia64/predicates.md (extr_len_operand): New predicate.
        * config/ia64/ia64.md (extv): Tighten constraints.
        (extzv): Ditto.
        (*tbit_and_2): Ditto.
        (*tbit_and_3): Ditto.
        (*tbit_or_2): Ditto.
        (*tbit_or_3): Ditto.
        (*bit_zero): Ditto.
        (*bit_one): Ditto.

2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/23359
        * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.

2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-vrp.c (execute_vrp): Do not pass dump argument to.
        loop_optimizer_init and loop_optimizer_finalize
        * tree-ssa-sink.c (execute_sink_code): Ditto.
        * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
        * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
        tree_ssa_loop_done): Ditto.
        * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
        * sched-ebb.c: Include output.h.
        (schedule_ebbs): Do not use dump argument.
        * value-prof.h (struct profile_hooks): Remove profile_dump_file.
        * loop.c (loop_dump_stream): Removed.
        (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
        argument.
        (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
        emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
        final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
        loop_iterations, strength_reduce, record_biv, record_giv,
        final_giv_value, check_final_value, check_ext_dependent_givs,
        combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
        try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
        dump_file instead of loop_dump_stream.
        * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
        argument dump_file.
        * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
        dump argument.
        * flow.c (life_analysis, rest_of_handle_life): Ditto.
        * haifa-sched.c: Include output.h
        (schedule_insns, sched_init): Do not use dump argument.
        * mode-switching.c (optimize_mode_switching): Ditto.
        * modulo-sched.c (stats_file): Removed.
        (print_node_sched_params): Do not call argument dump_file.
        (sms_schedule_by_order, loop_canon_p, sms_schedule,
        rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
        of stats_file.
        * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
        use dump argument.
        * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
        rtl_loop_init, rtl_loop_done): Ditto.
        * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
        * predict.c (combine_predictions_for_bb, tree_estimate_probability):
        Ditto.
        * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
        * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
        * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
        rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
        * emit-rtl.c (renumber_insns): Ditto.
        * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
        expand_gimple_basic_block, tree_expand_cfg): Ditto.
        * regclass.c (regclass): Ditto.
        * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
        remove_ssa_form, rewrite_out_of_ssa): Ditto.
        * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
        convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
        Ditto.
        * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
        * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
        to regclass.
        * gcse.c (gcse_file, debug_stderr): Removed.
        (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
        rest_of_handle_gcse): Do not use dump argument.
        (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
        one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
        pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
        compute_code_hoist_vbeinout, compute_code_hoist_data,
        one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
        compute_store_table, build_store_vectors, insert_insn_start_bb,
        insert_store, remove_reachable_equiv_notes, replace_store_insn,
        store_motion): Use dump_file instead of gcse_file.
        * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
        * profile.c (profile_dump_file): Removed.
        (branch_prob): Use dump_file instead of profile_dump_file.
        * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
        dump_file.
        * tree-ssa-copy.c (dump_copy_of): Ditto.
        * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
        dump file to life_analysis.
        * bt-load.c (branch_target_load_optimize): Ditto.
        * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
        renumber_insns.
        * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
        regclass, dbr_schedule): Declaration changed.
        * sched-int.h (sched_init): Declaration changed.
        * tree-profile.c (tree_profile_dump_file): Removed.
        (tree_profile_hooks): Removed profile_dump_file hook.
        * rtl-profile (rtl_profile_dump_file): Removed.
        (rtl_profile_hooks): emoved profile_dump_file hook.
        * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
        changed.
        * c-gimplify.c (c_genericize): Do not call local variable dump_file.
        * tree-cfg.c (build_tree_cfg): Ditto.
        * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
        * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
        Declaration changed.
        * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
        life_analysis and schedule_insns.
        * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
        life_analysis.
        * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
        dbr_schedule.
        * config/mips/mips.c (mips_reorg): Ditto.
        * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
        schedule_ebbs.

2006-02-06  Aldy Hernandez  <aldyh@redhat.com>

        * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
        (s390_mangle_fundamental_type): New.
        * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
        Define.

        * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
        (alpha_mangle_fundamental_type): New.
        * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
        Define.

        * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
        Define.
        * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
        Define.
        * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
        (sparc_mangle_fundamental_type): New.

2006-02-06  Jakub Jelinek  <jakub@redhat.com>

        * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
        (s390x-*-linux*): Likewise.
        * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
        * config/s390/t-linux: New file.

2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
        sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.

2006-02-06  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
        (ANTIC_SAFE_LOADS): New macro.
        (find_or_generate_expression): Add prototype.
        (set_contains_value): Allow null set for sake of not always having
        to allocate ANTIC_SAFE_LOADS.
        (phi_translate): Move placement of AGGREGATE_TYPE_P check.
        Allow COMPONENT_REF too.
        (valid_in_set): Allow COMPONENT_REF.
        Check ANTIC_SAFE_LOADS too.
        (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
        (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
        rename.
        (can_PRE_operation): Add COMPONENT_REF.
        (create_component_ref_by_pieces): New function.
        (create_expression_by_pieces): Use create_component_ref_by_pieces.
        (insert_aux): Move AGGREGATE_TYPE_P check here.
        (compute_avail): Set bb local stmt uids.
        (pass_pre): Use TODO_update_ssa_only_virtuals.

2006-02-06  Ben Elliston  <bje@au.ibm.com>

        * configure.ac: Unconditionally disable decimal float by default.
        * configure: Regenerate.

2006-02-06  Ben Elliston  <bje@au.ibm.com>

        * read-rtl.c (read_name): Terminate reading on EOF.

2006-02-06  Ben Elliston  <bje@au.ibm.com>

        * dfp.c (decimal_real_arithmetic): Change second argument type
        from int to enum tree_code. Do not always return true, but now
        return result of any call to decimal_do helper functions.
        * dfp.h (decimal_real_arithmetic): Update prototype.

2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.

2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/25251
        * tree-cfg.c (cleanup_dead_labels): Also don't remove
        forced labels.

2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-vrp.c (cfg_loops): Removed.
        (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
        Use current_loops instead of cfg_loops.  Pass flags to
        loop_optimizer_init.
        * cfgloopmanip.c (fix_loop_structure): Update only available
        information.
        * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
        loop_optimizer_init.
        * modulo-sched.c (build_loops_structure): Removed.
        (sms_schedule): Use loop_optimizer_init.
        * loop-init.c (loop_optimizer_init): Use flags to determine
        which properties of loops to prepare.
        (rtl_loop_init): Pass flags to loop_optimizer_init.
        * tree-ssa-sink.c (execute_sink_code): Ditto.
        * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
        * tree-ssa-pre.c (init_pre): Ditto.
        * cfgloop.h (LOOPS_NORMAL): New.
        (loop_optimizer_init): Declaration changed.

2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
        * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
        pa/t-pa.
        * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
        pa/t-pa.
        * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
        pa/x-ada.
        * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
        * pa/t-pa64: Delete quadlib.c rule.
        * pa/x-ada: Revert last change.
        * pa/t-pa: Revert last change.  Delete quadlib.c rule.

2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/26087
        * rtlanal.c (canonicalize_condition): Do not cross basic block
        boundaries.

2006-02-04  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/24444
        * config/ia64/ia64.c: Include debug.h.
        (MAX_ARTIFICIAL_LABEL_BYTES): New.
        (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
        (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
        (process_epilogue, process_set, process_for_unwind_directive):
        Output unwind info only if requested.  Add CFA info if requested.
        Add new arguments as needed.  Adjust callers.
        * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
        incorrect default.
        (DWARF2_FRAME_INFO): Define to zero.
        * config/ia64/unwind-ia64.c: Remove code that compensated for
        the CFA offset error fixed above.
        * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
        * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
        (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
        -funwind-tables and -fexceptions to enable frame info.
        (dwarf2out_frame_init): Define initial CFA even if
        DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
        DWARF2_UNWIND_INFO is nonzero, not just defined.
        (dwarf2out_frame_finish): Output non-EH call frame info only
        if DWARF2_FRAME_INFO is nonzero.
        (convert_cfa_to_loc_list,
        compute_frame_pointer_to_cfa_displacement): Define even if
        unwind info is not supported.
        (gen_subprogram_die): Use the above unconditionally.  Remove
        legacy alternate code.
        * toplev.c (compile_file): Compile in call to
        dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
        (lang_dependent_init): Ditto for dwarf2out_frame_init.

2006-02-04  David Edelsohn  <edelsohn@gnu.org>
            Jakub Jelinek  <jakub@redhat.com>

        * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
        IBM extended float format long double as "g" on powerpc*-linux.

2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/25926
        * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
        * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.

2006-02-03  Jason Merrill  <jason@redhat.com>

        PR c++/25979
        * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.

        PR middle-end/25977
        * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
        on the return slot if it's an NRV.

2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
        (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
        rewrite_use): Do not handle USE_OUTER.
        (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
        add_iv_outer_candidates, may_replace_final_value,
        determine_use_iv_cost_outer, rewrite_use_outer): Removed.
        (find_interesting_uses_op): Functionality of
        find_interesting_uses_outer_or_nonlin moved here.
        (find_interesting_uses_outside): Use find_interesting_uses_op.

2006-02-03  Alan Modra  <amodra@bigpond.net.au>

        PR target/25960
        * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.

2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
            Ulrich Weigand  <uweigand@de.ibm.com>

        PR target/25864
        * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
        "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
        * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
        * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr
        and dxr fields.
        (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
        (s390_rtx_costs): Use the new fields to calculate rtx costs.
        (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
        Define secondary reloads for TFmode moves.
        (constant_modes): Add TFmode.
        (NR_C_MODES): Set to 8.
        * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
        builtin define.
        (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
        (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
        (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
        CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
        * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf,
        fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
        (FPR mode macro): Add TFmode.
        (DSF mode macro): New.
        (<de>, <dee> mode attributes): Removed.
        (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
        ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs",
        "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee",
        "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3",
        "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm",
        "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly",
        "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
        "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc",
        "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm",
        "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
        "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly",
        "*negabs<mode>2", "sqrt<mode>2"):
        Changed <de> to <xde>. R constraint replaced by <Rf>.
        ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by
        <Rf>.
        ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
        ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
        ("*movtf_64", "*movtf_31"): New insn definitions followed by 5
        splitters.
        ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2",
        "extenddftf2", "extendsftf2"): New expanders.
        ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
        "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
        "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
        * config/s390/s390.opt (mlong-double-128, mlong-double-64):
        New options.
        * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
        * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2,
        __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
        __floatditf): Add a GCC_4.1.0 symbol version tag.
        * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
        the new options.

2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/25377
        * config/i386/i386.c (ix86_function_ok_for_sibcall):
        Use targetm.binds_local_p instead of TREE_PUBLIC.

2006-02-02  Roger Sayle  <roger@eyesopen.com>

        * tree.h (TYPE_STRING_FLAG): Document that this field may be used
        on INTEGER_TYPEs to indicate that it denotes a character type.
        * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
        signed_char_type_node, unsigned_char_type_node and char_type_node.
        * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
        INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
        a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.

2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
            Daniel Berlin  <dberlin@dberlin.org>

        * tree-tailcall.c (arg_needs_copy_p): New function.
        (eliminate_tail_call): Use arg_needs_copy_p.
        (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
        (add_virtual_phis): New function.

2006-02-02  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.c (sparc_output_scratch_registers): Use
        #ignore instead of #scratch for %g7 .register directive.

2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>

        * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
        object files.

2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>

        * flow.c (calculate_global_regs_live): Assert that there aren't any
        EDGE_FAKE edges.

2006-02-02  Paolo Bonzini  <bonzini@gnu.org>

        * tree-flow-inline.h (bsi_after_labels): Rewrite, return
        what its name says.
        * lambda-code.c (perfect_nestify): Use bsi_insert_before on
        bsi_after_labels iterator.
        * tree-if-conv.c (find_phi_replacement_condition,
        replace_phi_with_cond_modify_expr): Likewise.
        * tree-scalar-evolution.c (scev_const_prop): Likewise.
        * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.

2006-02-02  Diego Novillo  <dnovillo@redhat.com>

        * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.

2006-02-02  Diego Novillo  <dnovillo@redhat.com>

        PR 25990
        * tree-cfg.c (move_block_to_fn): Clear out the basic block
        array after growing it.

2006-02-01  Steve Ellcey  <sje@cup.hp.com>

        PR middle-end/24901
        * fold-const.c (fold_checksum_tree): Change type of buf.

2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>

        * reload.c (push_secondary_reload): Initialize t_icode.

2006-02-01  Jakub Jelinek  <jakub@redhat.com>

        * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
        -msoft-float -mlong-double-128 only issue a warning, but don't
        swich to DFmode long double.

2006-02-01  Hans-Peter Nilsson  <hp@axis.com>

        * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
        has a constant equivalent, iterate over equivalents for arg0,
        calling simplify_relational_operation and if there's a result
        cheaper than X, apply fold_rtx and return the result.

2006-02-01  Jan Hubicka  <jh@suse.cz>

        * opts.c (no_unit_at_a_time_default): New global variable.
        (decode_options): Use it.
        * opts.h (no_unit_at_a_time_default): Declare.

2006-02-01  Paul Brook  <paul@codesourcery.com>

        * function.c (assign_parm_setup_reg): Use function argument promotion
        rules.
        * expr.c (expand_expr_real_1): Use function argument promotion rules
        for PARM_DECLs.

2006-02-01  Steve Ellcey  <sje@cup.hp.com>

        * gcc.c (process_command): Change j to 'unsigned int'.

2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>

        PR middle-end/26001
        * expr.c (expand_expr_real_1) <case ARRAY_REF>:
        Use the corrected index for the character
        out of the string constant.

2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>

        * mode-switching.c (optimize_mode_switching): Fix size
        allocated for bb_info[n_entities].

2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>

        * gcc.c (main): Correct type that is allocated for
        explicit_link_files.

2006-01-31  Jakub Jelinek  <jakub@redhat.com>

        * config/s390/s390.c (init_alignment_context): Set
        ALIAS_SET_MEMORY_BARRIER on the MEM.
        * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.

2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>

        PR middle-end/25933
        * loop-unroll.c (unroll_loop_runtime_iterations): Free
        dom_bbs pointer.
        * tree-ssa-live.c (type_var_init): Allocate bitmap after
        call to tpa_init.

2006-01-31  Marcin Dalecki  <martin@dalecki.de>

        * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
        * regrename.c: Ditto.
        * tree-ssa-loop-im.c: Ditto.
        * tree-dump.c: Ditto.
        * tree-complex.c: Ditto.
        * genrecog.c: Ditto.
        * tree-ssa-threadupdate.c: Ditto.
        * tracer.c: Ditto.
        * java/class.c: Ditto.
        * java/jcf-parse.c: Ditto.
        * java/resource.c: Ditto.
        * java/except.c: Ditto.
        * java/jvspec.c: Ditto.
        * java/jcf-write.c: Ditto.
        * java/jcf-path.c: Ditto.
        * java/gjavah.c: Ditto.
        * java/zextract.c: Ditto.
        * java/jcf-io.c: Ditto.
        * java/jcf.h: Ditto.
        * java/buffer.c: Ditto.
        * java/lang.c: Ditto.
        * java/parse-scan.y: Ditto.
        * java/lex.c: Ditto.
        * java/lex.h: Ditto.
        * cfgloopmanip.c: Ditto.
        * postreload-gcse.c: Ditto.
        * tree-ssa-loop-manip.c: Ditto.
        * postreload.c: Ditto.
        * tree-ssa-loop-ch.c: Ditto.
        * loop.c: Ditto.
        * ipa-cp.c: Ditto.
        * cppspec.c: Ditto.
        * diagnostic.c: Ditto.
        * final.c: Ditto.
        * genoutput.c: Ditto.
        * gcc.c: Ditto.
        * cfghooks.c: Ditto.
        * cfgloopanal.c: Ditto.
        * objc/objc-act.c: Ditto.
        * gcov.c: Ditto.
        * genextract.c: Ditto.
        * genautomata.c: Ditto.
        * pretty-print.c: Ditto.
        * genemit.c: Ditto.
        * cgraphunit.c: Ditto.
        * flow.c: Ditto.
        * df-scan.c: Ditto.
        * haifa-sched.c: Ditto.
        * dominance.c: Ditto.
        * dbxout.c: Ditto.
        * tree-ssa-loop-ivopts.c: Ditto.
        * df-core.c: Ditto.
        * mode-switching.c: Ditto.
        * modulo-sched.c: Ditto.
        * graph.c: Ditto.
        * ipa-pure-const.c: Ditto.
        * cse.c: Ditto.
        * fix-header.c: Ditto.
        * web.c: Ditto.
        * tree-stdarg.c: Ditto.
        * ipa-utils.c: Ditto.
        * loop-init.c: Ditto.
        * ipa-inline.c: Ditto.
        * cfganal.c: Ditto.
        * global.c: Ditto.
        * alloc-pool.c: Ditto.
        * dwarf2out.c: Ditto.
        * opts.c: Ditto.
        * genattrtab.c: Ditto.
        * tree-ssa-loop-ivcanon.c: Ditto.
        * predict.c: Ditto.
        * timevar.c: Ditto.
        * lcm.c: Ditto.
        * fortran/gfortranspec.c: Ditto.
        * regmove.c: Ditto.
        * local-alloc.c: Ditto.
        * langhooks.c: Ditto.
        * function.c: Ditto.
        * tree-vectorizer.c: Ditto.
        * gcse.c: Ditto.
        * ipa-type-escape.c: Ditto.
        * alias.c: Ditto.
        * tree-if-conv.c: Ditto.
        * profile.c: Ditto.
        * ipa.c: Ditto.
        * tree-data-ref.c: Ditto.
        * loop-unroll.c: Ditto.
        * treelang/treetree.c: Ditto.
        * calls.c: Ditto.
        * bt-load.c: Ditto.
        * ggc-common.c: Ditto.
        * except.c: Ditto.
        * coverage.c: Ditto.
        * cselib.c: Ditto.
        * tree-cfgcleanup.c: Ditto.
        * tree-ssa-pre.c: Ditto.
        * cfgcleanup.c: Ditto.
        * loop-invariant.c: Ditto.
        * loop-iv.c: Ditto.
        * ipa-prop.c: Ditto.
        * print-tree.c: Ditto.
        * conflict.c: Ditto.
        * ggc-page.c: Ditto.
        * sched-deps.c: Ditto.
        * regclass.c: Ditto.
        * tree-object-size.c: Ditto.
        * combine.c: Ditto.
        * bb-reorder.c: Ditto.
        * resource.c: Ditto.
        * var-tracking.c: Ditto.
        * cfgloop.c: Ditto.
        * df-problems.c: Ditto.
        * reg-stack.c: Ditto.
        * tlink.c: Ditto.
        * gccspec.c: Ditto.
        * sched-rgn.c: Ditto.
        * tree-ssa-structalias.c: Ditto.
        * tree-ssa-reassoc.c: Ditto.
        * config/darwin-c.c: Ditto.
        * config/darwin.c: Ditto.
        * config/arm/arm.c: Ditto.
        * cfgrtl.c: Ditto.
        * collect2.c: Ditto.
        * reload1.c: Ditto.

2006-01-31  Nicolas Pitre  <nico@cam.org>

        * arm.md (smaxsi3): Make aware of smax_m1.
        (smax_m1): New.

2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>

        * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.

2006-01-31  Richard Guenther  <rguenther@suse.de>

        * doc/invoke.texi (-msselibm): Document.
        * target.h (expand_library_builtin): New target hook.
        * builtins.c (expand_builtin): Use expand_library_builtin.
        (default_expand_library_builtin): New function.
        * gcc.c (LINK_GCC_MATH_SPEC): Define.
        (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
        (link_gcc_math_spec): Declare.
        (static_specs): Add link_gcc_math_spec.
        * expr.h (default_expand_library_builtin): Declare.
        * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
        (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
        * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
        * config/i386/i386.opt (msselibm): New target option.
        * config/i386/i386.c (ix86_builtin_function_variants): New array.
        (ix86_init_sse_abi_builtins): New function.
        (ix86_expand_library_builtin): Likewise.
        (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
        (override_options): Handle error conditions wrt -msselibm.
        (ix86_builtins): Add function codes for SSE2 ABI builtins.
        (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
        * doc/extend.texi (__builtin_sse2_*): Document new target specific
        builtins.

2006-01-31  Richard Guenther  <rguenther@suse.de>
        Paolo Bonzini  <bonzini@gnu.org>

        * doc/install.texi (--disable-libgcc-math): Document.

2006-01-30  Marcin Dalecki  <martin@dalecki.de>

        * expr.h (expand_normal): new inline function.
        * builtins.c: use it, use EXPAND_NORMAL explicitely.
        * dojump.c: use it.
        * dwarf2out.c: use it.
        * expr.c: use it.
        * calls.c: use it.
        * expmed.c: use it.
        * except.c: use it.
        * config/sparc/sparc.c: use it.
        * config/i386/i386.c: use it.
        * config/rs6000/rs6000.c: use it.
        * config/arm/arm.c: use it.
        * config/mips/mips.c: use it.
        * stmt.c: use it, use EXPAND_NORMAL explicitely.

2006-01-30  Roger Sayle  <roger@eyesopen.com>

        * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
        argv to the appropriate type.

2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
        unreachable code.

2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>

        PR target/26018
        * config/s390/s390.c (struct machine_function): New flag
        decomposed_literal_pool_addresses_ok_p.
        (s390_reorg): Set it before final stage of literal pool transforms.
        (s390_decompose_address): Only accept displacements of the form
        (minus (label_ref ...) (label_ref ...)) if that flag is set.

2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>

        * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
        the comparison routine return.

2006-01-30  Michael Matz  <matz@suse.de>

        * global.c (find_reg): Only evict for global regs.
        Take n_refs into account and dump more info.

2006-01-30  J"orn Rennecke <joern.rennecke@st.com>

        PR target/14798:
        * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
        (pragma_trap, pragma_nosave_low_regs): Likewise.
        (current_function_anonymous_args): Likewise.
        (sh_deferred_function_attributes): New variable.
        (sh_deferred_function_attributes_tail): Likewise.
        (print_operand): For '@', look up trap_exit attribute.
        (calc_live_regs): Look up trapa_handler attribute.  For trapa
        handlers, save/restore fpscr, but don't do any other
        interrupt-specific saves.
        Don't save r0..r7 if the nosave_low_regs attribute is in effect.
        Fix check for partially saved registers to check for SHmedia.
        (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
        (sh_output_function_epilogue): Don't clear any of the removed
        variables.
        (sh_insert_attributes): Don't check pragma_interrupt.
        Insert deferred attributes.  Check that interrupt attribute is
        present for other attributes that require its presence.
        (sh_attribute_table): Add new attributes trapa_handler and
        nosave_low_regs.
        (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
        Don't check for pragma_interrupt.  Don't store argument.
        * sh.h (pragma_interrupt, sp_switch): Don't declare.
        (sh_deferred_function_attributes): Declare.
        (sh_deferred_function_attributes_tail): Likewise.
        * sh.md (sp_switch_1): Add operand.  Change generator caller.
        (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
        (*return_i): Don't use when trap_exit attribute is in effect.
        (*return_trapa): New insn pattern.
        * sh-c.c: New file.
        * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
        setting c_target_objs and cxx_target_objs.
        * t-sh: Add rule for sh-c.o.

2006-01-30  Richard Guenther  <rguenther@suse.de>

        PR c++/23372
        * gimplify.c (gimplify_target_expr): Handle easy cases
        without creating a temporary.

2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>

        * vec.h (safe_grow): Remove duplicated line.

2006-01-29  Diego Novillo  <dnovillo@redhat.com>

        PR 25874
        * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
        (expand_omp): ... here.
        (expand_omp_parallel): Only remove barriers for combined
        parallel+workshare constructs.

2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>

        Revert

        2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
        * tree.c (build_qualified_type): Chain the new type to the original
        type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
        a POINTER_TYPE or a REFERENCE_TYPE respectively.
        (build_pointer_type_for_mode): Only return unqualified types.
        (build_reference_type_for_mode): Likewise.

2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>

        * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
        * Makefile.in (CXX_COMPAT_WARN): Define.
        * configure: Regenerate.

2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-opt/25911
        * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
        to an if check.

2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>

        * toplev.c: Fix thinko.

2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
            Marcin Dalecki  <martin@dalecki.de>

        * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
        (push_srcloc): Use XNEW.
        (init_asm_output, default_get_pch_validity): Use XNEWVEC.

2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>

        * df-core.c (df_set_blocks): Deleted all variable.

2006-01-28  Ian Lance Taylor  <ian@airs.com>

        * cgraphunit.c (cgraph_assemble_pending_functions): Call
        cgraph_output_pending_asms.

2006-01-28  Zack Weinberg  <zackw@panix.com>

        * c.opt: Add -W(no-)overlength-strings.
        * doc/invoke.texi: Document it.
        * c-opts.c (c_common_handle_option): -pedantic implies
        -Woverlength-strings, if not explicitly disabled already.
        (c_common_post_options): -Woverlength-strings defaults to off, and
        is always off for C++.
        * c-common.c (fix_string_type): Issue warning about strings longer
        than is portable only if warn_overlength_strings.  Rearrange code
        a little for clarity.
        * configure.in: Check for -Wno-overlength-strings as well before
        enabling -pedantic in stage 1.
        * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
        (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.

        * genconditions.c (write_header, write_one_condition)
        (write_conditions, write_writer): Consolidate very long strings
        that were broken up to fit in C89 portable limit.  Don't use
        printf when fputs will do.

2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (simplify_comparison <AND>): Check
        TRULY_NOOP_TRUNCATION before start using a subreg.

        * config/mips/mips.md (*branch_zero<mode>,
        *branch_zero<mode>_inverted, *branch_equality<mode>,
        *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
        Remove mode check from comparisons.

2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>

        * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.

2006-01-28  Kazu Hirata  <kazu@codesourcery.com>

        * expmed.c (const_mult_add_overflow_p): Remove.
        * expr.h: Remove the prototype for const_mult_add_overflow_p.

        * recog.c (validate_replace_rtx_subexp): Remove.
        * recog.h: Remove the prototype for
        validate_replace_rtx_subexp.

        * integrate.h: Remove the prototype for
        copy_decl_for_inlining.
        * rtl.h: Remove the prototype for mark_constant_function.
        * tree-vectorizer.h: Remove the prototype for
        vect_strip_conversion.

        * modulo-sched.c (create_partial_schedule,
        free_partial_schedule, reset_partial_schedule): Make them
        static.

        * hooks.c (hook_bool_rtx_int_false): Remove.
        * hooks.h: Remove the prototype for hook_bool_rtx_int_false.

2006-01-28  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
        and -mlong-double-128 are incompatible.
        * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
        * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
        (TARGET_LIBGCC2_CFLAGS): Define.
        * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
        (TARGET_LIBGCC2_CFLAGS): Same.
        * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.

2006-01-28  Kazu Hirata  <kazu@codesourcery.com>

        PR c/19606.
        * c-typeck.c (build_binary_op): Perform implicit casts of
        operands before shortening them.

        * cfgloopmanip.c (split_loop_bb): Remove.
        * cfgloop.h: Remove the prototype for split_loop_bb.

        * cfgloop.c (flow_loop_outside_edge_p): Remove.
        * cfgloop.h: Remove the prototype for
        flow_loop_outside_edge_p.

        * emit-rtl.c (init_virtual_regs): Make it static.
        * function.h: Remove the prototype for init_virtual_regs.

        * recog.c (peephole2_optimize): Make it static.
        * recog.h: Remove the prototype for peephole2_optimize.

2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>

        * df-scan.c (df_record_entry_block_defs): Check if
        INCOMING_RETURN_ADDR_RTX is defined.

2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
            Kenneth Zadeck <zadeck@naturalbridge.com>

        PR rtl-optimization/24762
        * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
        * targhooks.c (hook_void_bitmap): New hook prototype.
        * targhoohs.h (hook_void_bitmap): Ditto.
        * bitmap.h (bitmap_head_def): Moved to coretypes.h.
        * coretypes.h (bitmap_head_def): Moved from bitmap.h.
        * target.h (live_on_entry): New function pointer.
        * df-scan.c (df_all_hard_regs): Removed.
        (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
        (df_scan_free_internal): Added df->entry_block_defs.
        (df_scan_alloc): Ditto.
        (df_scan_dump): Ditto.
        (df_uses_record): Plumbed flag field properly thru calls.
        Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
        This part fixes PR24762.
        (df_bb_refs_record): Added code to make the frame and arg
        pointers live in EH blocks.
        (df_refs_record): Added call to df_record_entry_block_defs.
        (df_record_entry_block_defs): New function.
        * df-core.c: Added comments to describe new artifical defs.
        * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
        (entry_block_defs): New field in struct df.
        (df_all_hard_regs): Deleted.
        * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
        * df-problems.c (df_ru_bb_local_compute_process_def):
        Added code to handle artifical defs in the entry to a function.
        (df_ru_bb_local_compute): Ditto.
        (df_rd_bb_local_compute_process_def):  Ditto.
        (df_rd_bb_local_compute): Ditto.
        (df_lr_bb_local_compute): Ditto.
        (df_ur_bb_local_compute): Ditto.
        (df_urec_bb_local_compute):  Ditto.
        (df_chain_create_bb):  Ditto.
        (df_ur_local_finalize): Removed entry.
        (df_urec_init): Ditto.
        (df_urec_local_finalize): Ditto.
        (df_ri_bb_compute): Added detection of last use of pseudos.
        * Makefile.in (df-scan.o): Updated dependencies.
        * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
        * config/mips/mips.c (mips_set_live_on_entry): Added.
        * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
        for target hook.
        * dce.c (marked_insn_p): Added code to handle artifical defs.

2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
        intrinsic.
        (_mm_cvtsi128_si64): Likewise.
        (_mm_cvtsd_si64): Likewise.
        (_mm_cvttsd_si64): Likewise.
        (_mm_cvtsi64_sd): Likewise.
        (_mm_cvtsi64_si128): Likewise.
        * config/i386/mmintrin.h (_m_from_int64): Likewise.
        (_mm_cvtsi64_m64): Likewise.
        (_m_to_int64): Likewise.
        (_mm_cvtm64_si64): Likewise.
        * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
        (_mm_cvttss_si64): Likewise.
        (_mm_cvtsi64_ss): Likewise.
        (_mm_cvtss_f32): Likewise.

2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>

        * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
        for pragma redefine_extname.

2006-01-27  Jakub Jelinek  <jakub@redhat.com>

        PR target/25864
        * libgcc-std.ver: Add GCC_4.1.0 symbol version.
        * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
        -mno-minimal-toc to previous content.
        (bispecs): Remove goal.
        * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
        * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
        compatibility aliases on powerpc-*-*gnu*.
        * config/rs6000/libgcc-ppc-glibc.ver: New file.
        * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
        libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
        (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
        (ldblspecs): New goal.
        * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
        * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
        _df_to_tf.
        * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
        L_sf_to_tf or L_df_to_tf is defined.

2006-01-27  David Edelsohn  <edelsohn@gnu.org>
            Alan Modra  <amodra@bigpond.net.au>

        PR target/25864
        * config/rs6000/linux.h (POWERPC_LINUX): Define.
        * config/rs6000/linux64.h (POWERPC_LINUX): Define.
        * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
        * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
        * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
        * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
        (rs6000_override_options): Initialize rs6000_ieeequad.
        Initialize TFmode format to ibm_extended_format if not
        TARGET_IEEEQUAD.
        (rs6000_handle_option): Accept -mabi= ibmlongdouble and
        ieeelongdouble.
        (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
        (rs6000_return_in_memory): Only return IEEEQUAD in memory.
        (function_arg_advance): IBM long double passed in two FPRs, not
        split.
        (function_arg): IBM long double passed in FPRs.
        (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
        (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
        Only multireg GPR aligned.
        (rs6000_init_libfuncs): Enable IBM long double functions if not
        IEEEQUAD.
        (rs6000_generate_compare): Use IBM long double compare if not
        TARGET_IEEEQUAD.
        * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
        (TARGET_IEEEQUAD): Define.
        (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
        not TARGET_IEEEQUAD.
        * config/rs6000/rs6000.md: Enable TFmode patterns if
        !TARGET_IEEEQUAD.
        * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
        * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
        and -mlong-double-128 are incompatible.
        * doc/invoke.texi (-mabi): Collect options together.  Add
        ibmlongdouble and ieeelongdouble.

2006-01-27  Richard Sandiford  <richard@codesourcery.com>

        * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
        opaque type.
        * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
        * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
        (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
        * rtl.h (rtunion_def): Remove rt_ptr.
        (X0PTR): Delete.
        (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
        (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
        * config/i386/winnt.c (i386_pe_mark_dllexport)
        (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.

2006-01-27 Gabor Loki <loki@gcc.gnu.org>

        * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.

2006-01-26 Alexandre Oliva  <aoliva@redhat.com>

        PR other/24829
        PR target/24831
        * gthr-dce.h: Do not gthrw-ify pthread_once_init,
        pthread_key_delete.  From John David Anglin.  gthrw-ify
        pthread_getunique_np only if it it's not a macro.  Delete
        UNUSED macro.
        (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
        __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
        __gthread_objc_condition_signal, __gthread_key_delete): Add
        "__attribute__ ((__unused__))" to unused arguments.
        (__gthread_recursive_mutex_init_function): Add missing return.
        * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
        gthr-posix95.h: Use macro-based approach for name redirection
        on targets missing weakref.

2006-01-26  Zack Weinberg  <zackw@panix.com>

        * genconditions.c (write_header): In generated code, #ifdef out
        all includes and fake declarations, except includes of bconfig.h
        and system.h, unless GCC_VERSION >= 3001.  Do not include
        gensupport.h in any case.
        (write_conditions): Generate a definition of struct c_test.  Add
        a comment to the generated #endif.
        (write_one_condition): Escape backslashes in string too.
        (write_writer): Generated code must escape backslashes and quote
        marks (but not newlines) in the strings it writes.
        * Makefile.in (build/gencondmd.o): Update dependencies.

2006-01-26  Steve Ellcey  <sje@cup.hp.com>

        PR target/25961
        * Makefile.in (insn-automata.o): Add header file dependencies.
        * genautomata.c: Add includes.

2006-01-26  Steve Ellcey  <sje@cup.hp.com>

        PR target/25961
        * Makefile.in (insn-automata.o): Add -Wno-error flag.

2006-01-26  Paolo Bonzini  <bonzini@gnu.org>

        * configure.ac: Expect target tools paths to be passed from the toplevel
        and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
        AS_SET_VAR_IF.
        * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.

2006-01-26  Alexandre Oliva  <aoliva@redhat.com>

        PR c/25892
        * c.opt (Wpointer-sign): Init to -1.
        * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
        OPT_pedantic, to 0 otherwise.
        * doc/invoke.texi: Update.

2006-01-26  Paolo Bonzini  <bonzini@gnu.org>

        * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
        constants provided by 80387 instructions in the destination mode.

2006-01-26  Richard Guenther  <rguenther@suse.de>
            Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/21470
        partial PR tree-opt/17064
        * tree-ssa-structalias.c (intra_create_variable_infos):
        Create heap variables for incoming parameters if
        flag_argument_noalias > 1.
        (find_what_p_points_to): Look through default defs of
        parameter decls.

2006-01-26  Jeff Law  <law@redhat.com>

        PR ada/25900
        * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
        with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
        within the VR_RANGE, use the VR_RANGE as the result, not the
        VR_ANTI_RANGE.
        (adjust_range_with_scev): Reject ranges from SCEV which are out of
        bounds for the type.

2006-01-26  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-alias.c (maybe_create_global_var): Change
        subvar walking to an assertion that we don't have subvar'd variables.

2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>

        PR C/25861
        * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
        Use a new variable, inner.  PARM_DECLs are always non-weak.

2006-01-26  Shantonu Sen  <ssen@opendarwin.org>

        * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
        --disable-checking.

2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>

        * config/mips/mips.md (*clear_upper32): New combiner pattern.

2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>

        * arm.md (smaxsi3, sminsi3): Convert to define_expand.
        (smax_insn, smin_insn, smax_0, smin_0): New.

2006-01-26  Hans-Peter Nilsson  <hp@axis.com>

        PR target/25947
        * config/cris/cris.c (cris_order_for_addsi3): New function.
        * config/cris/cris-protos.h: Prototype it.
        * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
        (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
        (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
        (split for "op.S1 [rx=rx+i],ry (swapped)")
        (split for "op(s|u).S1 [rx=rx+i],ry")
        (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
        Apply cris_order_for_addsi3 when generating addsi3 insns.

2006-01-25  Diego Novillo  <dnovillo@redhat.com>

        * tree.h (TREE_RANGE_CHECK): Fix range predicate.
        (TREE_BLOCK): Add call to EXPR_CHECK.

2006-01-25  Diego Novillo  <dnovillo@redhat.com>

        PR 25886
        * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
        * tree-pretty-print.c (dump_omp_clause): Extract from ...
        (dump_omp_clauses): ... here.
        (dump_generic_node): Handle OMP_CLAUSE.
        * tree.c (omp_clause_num_ops): New.
        (omp_clause_code_name): New.
        (tree_code_size): Handle OMP_CLAUSE.
        (tree_size): Likewise.
        (make_node): Document handling of OMP_CLAUSE.
        (tree_node_structure): Handle OMP_CLAUSE.
        (omp_clause_check_failed): New.
        (omp_clause_range_check_failed): New.
        (omp_clause_operand_check_failed): New.
        (build_omp_clause): New.
        (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
        * tree.h (enum omp_clause_code): Declare.
        (OMP_CLAUSE_SUBCODE_CHECK): Define.
        (OMP_CLAUSE_RANGE_CHECK): Define.
        (OMP_CLAUSE_ELT_CHECK): Define.
        (omp_clause_check_failed): Declare.
        (omp_clause_operand_check_failed): Declare.
        (omp_clause_range_check_failed): Declare.
        (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
        (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
        (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
        (OMP_CLAUSE_LASTPRIVATE): Likewise.
        (OMP_CLAUSE_IF_EXPR): Likewise.
        (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
        (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
        (OMP_CLAUSE_REDUCTION_CODE): Likewise.
        (OMP_CLAUSE_REDUCTION_INIT): Likewise.
        (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
        (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
        Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
        (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
        (OMP_CLAUSE_DEFAULT_KIND): Likewise.
        (OMP_CLAUSE_CODE): Define.
        (OMP_CLAUSE_SET_CODE): Define.
        (OMP_CLAUSE_CODE): Define.
        (OMP_CLAUSE_OPERAND): Define.
        (struct tree_omp_clause): Declare.
        (union tree_node): Add field 'omp_clause'.
        * treestruct.def (TS_OMP_CLAUSE): Define.
        * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
        OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
        OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
        OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
        OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
        OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
        (OMP_CLAUSE): Define.
        * print-tree.c (print_node): Handle OMP_CLAUSE.
        * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
        * c-typeck.c: Likewise.
        * gimplify.c: Likewise.
        * c-omp.c: Likewise.
        * tree-nested.c: Likewise.
        * tree-inline.c: Likewise.
        * c-parser.c: Likewise.
        * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
        clauses.

2006-01-25  Roger Sayle  <roger@eyesopen.com>

        PR rtl-optimization/25703
        * combine.c (try_combine): Handle zero_extract and strict_low_part
        of non-lowpart SUBREGs for constant reg_subword_p set optimization.

2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>

        * global.c: Fix comment typos.

2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/25758
        * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
        Use output_addr_const instead of assemble_name.

2006-01-25  Paolo Bonzini  <bonzini@gnu.org>

        * Makefile.in (sched-vis.o): Update dependencies.
        * haifa-sched.c (sched_finish): Clear current_sched_info.
        * cfg.c (dump_bb_info): New, split from dump_flow_info.
        (dump_flow_info): Call it.
        * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
        a slim RTL dump.
        * basic-block.h (dump_bb_info): Declare.
        * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
        option, and apply options only for dump files whose TDF_RTL,
        TDF_TREE, or TDF_IPA bits match.
        * rtl.h: Declare new functions exported from sched-vis.c.
        * sched-vis.c: Enable also if scheduling is not used.
        (print_value): Print the mode of registers if not inside scheduling.
        (print_insn): Make it work outside the scheduler.  Beautify the output
        a bit.
        (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.

2006-01-25  Richard Sandiford  <richard@codesourcery.com>

        * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
        * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
        a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
        depending on the value of CONSTANT_POOL_ADDRESS_P.
        * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
        SYMBOL_REF_DECL.
        * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
        rather than SYMBOL_REF_DECL.
        (rtx_constant_pool): Remove const_rtx_sym_htab.
        (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
        (init_varasm_status): Don't initialize const_rtx_sym_htab.
        (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
        Remove handling of const_rtx_sym_htab.
        (find_pool_constant): Delete.
        (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
        rather than find_pool_constant.
        (get_pool_constant_for_function): Delete.
        (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
        find_pool_constant.
        * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
        (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
        (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
        (SYMBOL_REF_CONSTANT): New macro.
        (get_pool_constant_for_function): Delete.
        * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
        rather than SYMBOL_REF_DECL.
        (i386_pe_mark_dllimport): Likewise.
        * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
        rather than SYMBOL_REF_DECL.
        * config/darwin.c (machopic_indirect_data_reference): Likewise.
        (machopic_indirect_call_target): Likewise.

2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>

        * flow.c (delete_noop_moves): Add missing EOL to dump message.

2006-01-25  Richard Sandiford  <richard@codesourcery.com>

        * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.

2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.

2006-01-24  David Daney  <ddaney@avtrex.com>

        PR java/25816
        * configure.ac (enable_tls): New enable option.
        (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
        * configure: Regenerate.
        * doc/install.texi (--enable-tls): Document new option.
        (--disable-tls): Ditto.

2006-01-24  Richard Henderson  <rth@redehat.com>

        * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
        * alias.c (true_dependence): Respect it.
        (canon_true_dependence, write_dependence_p): Likewise.
        * builtins.c (get_builtin_sync_mem): Set it.

2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>

        * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
        efficient way.

2006-01-24  DJ Delorie  <dj@redhat.com>

        * expmed.c (store_bit_field): Don't arbitrarily deny using insv
        for storing constants in single-bit bitfields.

2006-01-25  Ben Elliston  <bje@au.ibm.com>

        * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.

2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/25860
        * tree-ssa-pre.c (phi_translate): Return NULL
        for AGGREGATE_TYPE's.

2006-01-24  Zack Weinberg  <zackw@panix.com>

        * genautomata.c (process_state_for_insn_equiv_partition):
        Use xcalloc for insn_arcs_array.
        * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
        (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.

2006-01-24  Richard Henderson  <rth@redhat.com>

        * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
        update all callers.

2006-01-23  Paolo Bonzini  <bonzini@gnu.org>

        PR rtl-optimization/25890
        PR rtl-optimization/25905
        * combine.c (expand_compound_operation, expand_field_assignment):
        Fail if the bitfield's final position is out of bounds.

2006-01-24  Ian Lance Taylor  <ian@airs.com>

        PR middle-end/25930
        * cgraphunit.c (cgraph_output_in_order): Don't clear
        cgraph_asm_nodes until after asm strings have been output.

2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>

        * fix-header.c (read_scan_file): Add new parameter imultilib when
        calling register_include_chains.

2006-01-23  Diego Novillo  <dnovillo@redhat.com>

        * omp-low.c: Update documentation.

2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
            Daniel Berlin  <dberlin@dberlin.org>

        PR tree-opt/25315
        PR tree-opt/25857
        * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
        return from the function.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * rtl.def (match_code): Add second argument.
        * genpreds.c (write_extract_subexp): New function.
        (write_match_code): Add path argument.  Use write_extract_subexp.
        (write_predicate_expr): Pass path to write_match_code.
        (mark_mode_tests): MATCH_CODE applied to a subexpression does
        not perform a mode test.
        * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
        a subexpression does not constrain the top-level code set.
        * read-rtl.c (read_rtx_variadic): New function.
        (read_rtx_1): Use it; allow AND and IOR to be variadic.
        * doc/md.texi: Document new notation.
        * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
        (cmpsi_operand): ... here, using new notation.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * varray.c: Remove GENERATOR_FILE #ifdefs.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * genautomata.c (output_reserved_units_table): Emit nothing if
        description->query_units_num is zero.  Remove extra blank line.
        (output_cpu_unit_reservation_p): Short circuit
        if description->query_units_num is zero.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
        and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
        nor any of the random handful of variables that used to be necessary
        when this program was linked with rtlanal.o.  Prune set of forward
        function declarations.
        (struct attr_desc): Remove static_p field.
        (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
        (check_attr_test, make_internal_attr, make_numeric_value): Make static.
        (attr_string): Do not read the character one past the length of
        the string.
        (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
        (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
        (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
        (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
        (make_automaton_attrs): New.
        (main): Do not call into genautomata.  Call local gen_bypass
        and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
        Remove special case for insn_alts.
        * genautomata.c: Include gensupport.h; not genattrtab.h nor
        varray.h (leftover from previous change).  Prune set of forward
        function declarations.  Remove state_alts fields from all
        structures.  Remove state_alts_table from struct automaton.
        Make everything except main static.  Do not maintain num_dfa_decls.
        Do not maintain state_alts fields of various structures.
        (process_decls): Don't validate condexp for dm_insn_reserv decls.
        (add_arc): Remove state_alts argument.  All callers updated.
        (output_reserved_units_table): Emit #ifdef here...
        (output_tables): ...not here.  Don't generate state_alts tables.
        (expand_automata): Don't generate attributes.
        (write_automata): Don't generate state_alts functions.
        (main): New function.
        (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
        (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
        (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
        (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
        (BYPASS_P_FUNC_NAME, output_state_alts_table)
        (output_automata_list_state_alts_code, output_internal_state_alts_func)
        (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
        (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
        Delete.
        * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
        * genattrtab.h: Delete file.
        * Makefile.in (OBJS-common): Add insn-automata.o.
        (insn-automata.o): New rule.
        (simple_generated_c): Add insn-automata.c.
        (build/genattrtab.o, build/genautomata.o): Update dependencies.
        (genprogmd): Add automata.
        (build/genattrtab): Needs no extra objects nor libraries.
        (build/genautomata): Needs build/vec.o and -lm.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * genautomata.c (process_state_longest_path, max_dfa_issue_rate)
        (output_dfa_max_issue_rate, locked_states_num): Delete.
        (struct automaton): Add locked_states field.
        (output_dead_lock_vect): Save number of locked states in
        automaton->locked_states.  If it is zero, don't print anything.
        (output_max_insn_queue_index_def): Define max_insn_queue_index const.
        (output_internal_dead_lock_func): Only test the dead_lock_vect
        for automata that have locked states.
        (output_statistics): Always print the number of locked states for
        each automaton.  Calculate total number of locked states here.
        (write_automata): Don't call output_dfa_max_issue_rate.
        * genattrtab.c: Define length_unit_log as a const variable.
        * genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
        max_insn_queue_index const.
        * final.c (length_unit_log): Declare const.
        * doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * genautomata.c:  Include vec.h, not varray.h.
        Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
        VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
        VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
        VEC_* macros operating on appropriately typed vectors, or to
        malloced arrays when the size is known in advance.  Const-ify
        many char* variables and function arguments.  No functional changes.
        * Makefile.in (build/varray.o): Delete rule.
        (build/genattrtab): Depend on build/vec.o instead of build/varray.o.
        (build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * gensupport.c: Define get_insn_name and record_insn_name here.
        (read_md_rtx): Call record_insn_name as appropriate.
        * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
        * genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
        * genpreds.c, genrecog.c: Don't define get_insn_name nor
        record_insn_name.
        * Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
        (BUILD_VARRAY): Delete.
        (genprognormal): Rename genprogmd.  Fold in all programs from
        genprognoprint; also attrtab.
        (build/genattrtab): Just mention genautomata.o and varray.o.
        Reorganize a bit, add comments to make the categories clearer.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * genconditions.c (condition_table, add_condition): Delete.
        (write_conditions): Don't emit n_insn_conditions nor
        insn_elision_unavailable.  Issue the gcc version #ifdef here,
        inside the table, with no #else clause ...
        (write_header): ...not here.
        (write_writer): New function.
        (main): Don't initialize condition_table.  Use add_c_test.
        Call write_writer.
        * gensupport.c (init_md_reader_args_cb): Handle multiple input
        files on the command line.
        (maybe_eval_c_test): Don't check insn_elision_unavailable.
        Return -1 if there is no entry in the table, don't abort.
        (add_c_test, traverse_c_tests): New functions.
        * gensupport.h (insn_elision_unavailable, insn_conditions)
        (n_insn_conditions): Delete declarations.
        (add_c_test, traverse_c_tests): Declare.
        * read-rtl.c: Include gensupport.h.
        (read_conditions): New function.
        (read_rtx): If read_rtx_1 returns 0, treat as EOF.
        (read_rtx_1): If we get EOF when we were looking for an initial
        open paren, return 0.  Call read_conditions when appropriate.
        * Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
        dummy-conditions.o.  Eliminate references to insn-conditions.o,
        or change them to build/gencondmd.o, as appropriate.  Remove
        insn-constants.h from $(simple_generated_h) and insn-conditions.c
        from $(simple_generated_c).  For all files remaining in those
        two lists, add insn-conditions.md to the generator command line.
        Give insn-constants.h/s-constants their own rules.  Add rules
        for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
        (build/read-rtl.o): Depend on gensupport.h.
        (genprognormal): Include preds.
        (genprogearly): Rename genprognoprint; only difference is now that
        they don't link with $(BUILD_PRINT).
        * dummy-conditions.c: Delete.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * genextract.c: Don't include insn-config.h.  Do include vec.h.
        Declare vectors of int, char, and locstr.
        (locstr): New typedef.
        (struct extraction): Make all array fields into bare pointers.
        (insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
        (insn_code_number): Delete.
        (accum_extract): New struct.
        (VEC_safe_set_locstr, VEC_char_to_string): New functions.
        (gen_insn): Take insn_code_number as an argument.  Use an
        accum_extract structure instead of loading data directly into
        a struct extraction, and having to know how big it might get.
        (walk_rtx): Operate entirely on an accum_extract structure.
        (print_path): Avoid unnecessary use of printf.
        (print_header): New function, split out of main.  Distinguish
        more carefully between an unrecognizable insn and an insn that
        has the code number of a define_expand.
        (main): Pass insn_code_number to gen_insn.  Call print_header
        only after parsing.  Avoid unnecessary use of printf.
        * Makefile.in (build/vec.o): New rule.
        (build/genextract): Depend on build/vec.o.
        (build/genextract.o): Don't depend on insn-config.h.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
        $(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
        practical.  Eliminate per-generator-program link rules.

2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>

        PR middle-end/24437
        * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
        with a call expr to ...
        * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.

2006-01-23  Richard Guenther  <rguenther@suse.de>

        * cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
        before make_edge with conditional EDGE_TRUE_VALUE.

2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
        Jan Hubicka  <jh@suse.cz>
        Richard Guenther  <rguenther@suse.de>

        PR rtl-optimization/25654
        * cfgexpand.c (aggregate_contains_union_type): New function.
        (add_alias_set_conflicts): Call it.  Make sure to add conflicts
        for structure variables that contain a union type.

2006-01-23  Richard Sandiford  <richard@codesourcery.com>

        * gengtype.c (new_structure): Return the structure.
        (create_option): Add an extra "next" argument.
        (create_field): New function.
        (adjust_field_rtx_def): Use create_option and create_field.
        Remove a now-unnecessary call to find_structure.
        (adjust_field_tree_def): Likewise.
        (note_yacc_type): Remove an unnecessary call to find_structure.
        * gengtype.h (new_structure): Return the structure.
        (create_option): Add an extra argument.
        * gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
        (option): Adjust calls to create_option.

2006-01-22  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/aix.h (STACK_BOUNDARY): Define.

2006-01-22  Paul Brook  <paul@codesourcery.com>
        Peter Barada  <peter@the-baradas.com>

        * config/m68k/m68k.md: Add Coldfire FPU support.
        Define FP mode macro and associated attributes.
        Use it for float mode patterns.
        * config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
        (LIBCALL_VALUE): Use m68k_libcall_value.
        * config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
        (m68k_function_value): Ditto.
        (emit_move_sequence): Ditto.
        * config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
        * config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
        * config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
        (MULTILIB_EXCEPTIONS): Ditto.
        * config/m68k/m68k.opt: Add mcfv4e.
        * config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
        (m68k_compute_frame_layout): Include space for ColdFire FPU regs.
        (m68k_output_function_prologue): Save ColdFire FPU registers.
        (m68k_output_function_epilogue): Restore ColdFire FPU registers.
        (force_mode, fp_reg_operand, emit_move_sequence): New functions.
        (m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
        ColdFire FPU registers.
        (m68k_libcall_value, m68k_function_value): New functions.
        * config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
        (LIBCALL_VALUE): Use m68k_libcall_value.
        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
        (MASK_COLDFIRE): Add MASK_CFV4E.
        (TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
        (MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
        (REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
        (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
        (GO_IF_LEGITIMATE_ADDRESS): Use it.
        (LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
        * doc/invoke.tex: Document -mcfv4e on m68k.

2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>

        * doc/contribute.texi: Change CVS to SVN and update the corresponding
        URL.

2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>

        PR c++/16190
        * c-opts.c (c_common_handle_option): Don't include
        -Wnon-virtual-dtor in -Wall; enable if -Weffc++.
        * doc/invoke.texi (C++ Dialect Options): Document that
        -Wnon-virtual-dtor is no longer included in -Wall.

2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>

        * gcov.c (print_version), gcov-dump.c (print_version),
        mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
        dates.

2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>

        * df-scan.c (problem_SCAN): Added NULL reset function.
        (df_scan_reset_blocks): Added code to call reset block function
        (df_bb_refs_delete) Fixed comment.
        (df_insn_refs_delete): Made tolerant of deleting non existent info
        for dataflow problems that need to be reset.
        * df-core.c (df_set_blocks): Ditto.
        * df.h (struct df_problem): Added reset_fun.
        * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
        problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
        (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
        functions to clear out all references to def-use or use-def chains.

2006-01-21  Ben Elliston  <bje@au.ibm.com>

        * varasm.c (assemble_real): Initialise data array.

2006-01-20  Paul Brook  <paul@codesourcery.com>

        Merge from csl-arm-branch.
        2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
        * config/arm/arm.md (movdi): Force operands[1] to a register
        if we have a non-register source.
        (*arm_movdi, *movdf_soft_insn): Require that one of the
        operands be a register.
        * config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
        * config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.

2006-01-20  DJ Delorie  <dj@redhat.com>

        * varasm.c (initialize_constant_valid_p): Allow pointers
        initialized from integer constants of lesser precision.
        (output_constant): Allow non-int-sized pointer modes to be
        initialized from integer constants.

2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>

        PR libstdc++/25524
        * cppdefault.h (struct default_include): Add multilib flag.
        * cppdefault.c (cpp_include_defaults): Set it.
        * c.opt (-imultilib): New option.
        * c-opts.c (imultilib): New.
        (c_common_handle_option): Handle -imultilib.
        (c_common_post_options): Likewise.
        * c-incpath.c (add_standard_paths, register_include_chains):
        Likewise.
        * c-incpath.h (register_include_chains): Add extra parameter.
        * gcc.c (do_spec_1): Generate -imultilib option.
        (The Specs Language): Update %I description.
        (process_command): Update copyright notice.
        * doc/cppopts.texi (-imultilib): Document.
        * doc/invoke.texi (-imultilib): Include in option summary.
        (%I): Update specs documentation.

2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>

        * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.

2006-01-20  Richard Sandiford  <richard@codesourcery.com>

        * stmt.c (case_bit_test_cmp): Stabilize the sort using code
        label numbers.

2006-01-20  Richard Guenther  <rguenther@suse.de>
        Steven Bosscher <stevenb.gcc@gmail.com>

        PR rtl-optimization/24626
        * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
        EDGE_TRUE_VALUE if in RTL mode.

        Revert
        2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
        * cfgrtl.c (rtl_verify_flow_info_1): Fix.

2006-01-20  Dirk Mueller  <dmueller@suse.com>

        PR c++/5520
        * c-parser.c (c_parser_if_body): Use build_empty_stmt()
        instead of a special NOP marker.
        * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
        NOP marker handling.
        * c-common.h (empty_body_warning): Add forward declaration.
        * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
        Now uses IS_EMPTY_STMT() instead of special NOP markers.

2006-01-20  Paul Brook  <paul@codesourcery.com>

        * Makefile.in (lang_checks): Keep going if mkdir fails.

2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>

        * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
        be able to clean out basic block when not necessary.
        (df_scan_free): Fixed to properly delete information if df is
        unused before calling df_finish.
        (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
        df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
        or comment typos.
        (df_bb_refs_delete): New function.
        (df_refs_delete): Moved per block code to df_bb_refs_delete.
        * df-core.c (df_set_blocks): Added code to properly clean out
        unused blocks if they are not part of the blocks to consider.
        Added additional null check.
        (df_compact_blocks): Added basic block parameter to free_bb_fun to
        be able to clean out basic block when not necessary
        * df.h (df_free_bb_function): Ditto.
        (df_bb_refs_delete): New function.
        * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
        df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
        basic block parameter to be able to clean out basic block when not
        necessary.
        (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
        (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
        Fixed to properly delete information if df is unused before
        calling df_finish.

2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>

        PR rtl-optimization/25799
        * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
        Corrected confluence operator to remove bits from op2 before oring
        with op1 rather than removing bits from op1.
        (df_ru_transfer_function): Corrected test on wrong bitmap which
        caused infinite loop.  Both of these problems were introduced in
        the dataflow rewrite.

2006-01-19  DJ Delorie  <dj@redhat.com>

        * reload1.c (find_reload_regs): Note the details of reload
        failures in the dump file.
        (spill_failure): Likewise.

2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>

        * loop-iv.c: Include df.h and hashtab.h.
        (enum iv_grd_result): New enum.
        (DF_REF_IV, DF_REF_IV_SET): New macros.
        (struct biv_entry): New.
        (df, bivs): New global variables.
        (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
        assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
        Removed.
        (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
        iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
        analyzed_for_bivness_p, record_biv): New functions.
        (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
        get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
        iv_analyze, biv_p, iv_analysis_done): Work with df representation of
        UD chains.
        (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
        analysed.
        (iv_number_of_iterations): Use new interface to iv analysis.
        * loop-unroll.c: Do not include varray.h.
        (analyze_iv_to_split_insn): Use new interface to iv
        analysis.
        * loop-unswitch.c (may_unswitch_on): Ditto.
        * df.c (df_bitmaps_free): Only work for bbs for that structures are
        allocated.
        (df_bb_modify): Realloc tables to the new index.
        (df_find_use): New function.
        * df.h (df_find_use): Declare.
        * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
        outmode.
        * cfgloop.h (struct rtx_iv): Remove analysed field.
        (iv_get_reaching_def): Removed.
        (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
        * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
        (loop-iv.o): Add df.h and hashtab.h dependency.
        * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.

2006-01-20  Alan Modra  <amodra@bigpond.net.au>

        PR target/25668
        * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
        Double TFmode.
        (__floatundisf, __floatundidf): Likewise.
        * libgcc2.h (IS_IBM_EXTENDED): Define.

2006-01-19  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.h (REG_ALLOC_ORDER): Define.

2006-01-19  Paul Brook  <paul@codesourcery.com>

        * gcc/config/arm/arm.c (arm_compute_func_type): Treat all functions
        as nothrow when unwinding tables are disabled.

2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR testsuite/25171
        * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
        of bit-field" when in system header.

2006-01-19  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
        the 16 bit shift limit of the m16c.

2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/22099
        * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
        * config/i386/i386.c (output_set_got): Output the label if we have one
        for the TARGET_DEEP_BRANCH_PREDICTION case.

2006-01-19  Jan Hubicka  <jh@suse.cz>
            H.J. Lu  <hongjiu.lu@intel.com>
            Evandro Menezes <evandro.menezes@amd.com>

        * invoke.texi (generic): Document
        (i686) Update.
        * config.gcc: Make x86_64-* and i686-* default to generic tunning.
        * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
        TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
        (x86_use_incdec, x86_pad_returns): New variables
        (TARGET_CPU_DEFAULT_generic): New constant
        (TARGET_CPU_DEFAULT_NAMES): Add generic.
        (enum processor_type): Add generic32 and generic64.
        * i386.md (cpu attribute): Add generic32/generic64
        (movhi splitter): Behave sanely when both partial_reg_dependency and
        partial_reg_stall are set.
        (K8 splitters): Enable for generic as well.
        * predicates.md (incdec_operand): Use TARGET_INCDEC
        (aligned_operand): Avoid memory mismatch stalls.
        * athlon.md: Enable for generic64, new patterns for 128bit moves.
        * ppro.md: Enable for generic32
        * i386.c (generic64_cost, generic32_cost): New.
        (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
        (x86_use_leave): Enable for generic64.  (x86_use_sahf,
        x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
        x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
        x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
        x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
        x86_partial_reg_dependency, x86_memory_mismatch_stall,
        x86_accumulate_outgoing_args, x86_prologue_using_move,
        x86_epilogue_using_move, x86_arch_always_fancy_math_387,
        x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
        Enable for generic.
        (x86_use_incdec, x86_pad_returns): New.
        (override_options): Add generic32 and generic64, translate "generic"
        to generic32/generic64 and "i686" to "generic32", refuse
        "generic32"/"generic64" as arch target.
        (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
        (ix86_reorg): Honor PAD_RETURNS.

2006-01-19  Diego Novillo  <dnovillo@redhat.com>

        * tree-pretty-print.c (dump_generic_node): Handle
        OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
        * cgraph.c (cgraph_expand_queue): Rename from
        cgraph_analyze_queue.  Update all users.
        * cgraphunit.c (cgraph_assemble_pending_functions): Process
        cgraph_expand_queue.
        (cgraph_expand_all_functions): Likewise.
        (cgraph_finalize_pending_functions): Remove.  Update callers.

        * tree.h (OMP_DIRECTIVE_P): Define.
        (OMP_PARALLEL_FN): Define.
        (OMP_PARALLEL_DATA_ARG): Define.
        (OMP_SECTIONS_SECTIONS): Define.
        * tree-pass.h (pass_expand_omp): Declare.
        * omp-low.c (struct omp_region): Declare.
        (struct omp_context): Remove fields 'parallel_type',
        'parallel_start_ix' and 'parallel_start_additional_args'.
        Update all users.
        (struct omp_for_data): Rename from struct expand_omp_for_data.
        (omp_regions): New static variable.
        (root_omp_region): New static variable.
        (find_omp_clause): Make static.
        (is_in_combined_parallel_ctx): Remove.
        (is_combined_parallel): New.
        (extract_omp_for_data): Move earlier in the file.
        (workshare_safe_to_combine_p): New.
        (get_ws_args_for): New.
        (determine_parallel_type): Move earlier in the file.
        (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
        child function.
        (omp_copy_decl): Likewise.
        (create_omp_child_function): Likewise.
        (lookup_omp_region): New.
        (dump_omp_region): New.
        (debug_omp_region): New.
        (debug_all_omp_regions): New.
        (new_omp_region): New.
        (scan_omp_parallel): If parallel_nesting_level > 1, the
        directive is nested within another parallel directive.
        Set OMP_PARALLEL_FN.
        (scan_omp_for): Do not try to handle combined parallel+for
        cases.
        Remove FIXME comment.
        (scan_omp_nested): Remove.
        (scan_omp_1): Do not call scan_omp_nested when
        parallel_nesting_level is > 1.
        Do not change the DECL_CONTEXT of local variables found.
        (lookup_decl_in_outer_ctx): New.
        (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
        (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
        (lower_reduction_clauses): Rename from expand_reduction_clauses.
        (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
        If CTX is nested, lookup VAR in the outer context when
        building copy assignment.
        (lower_send_clauses): Rename from expand_send_clauses.
        If CTX is nested, lookup VAR in the outer context when
        building copy assignments.
        (lower_send_shared_vars): Rename from expand_send_shared_vars.
        If CTX is nested, lookup VAR in the outer context when
        building copy assignments.
        (expand_parallel_call): Rename from build_parallel_call.
        Handle combined parallel+workshare cases.
        Re-implement to emit code into the CFG.
        (list2chain): New.
        (expand_omp_parallel): Re-implement to emit code into the CFG.
        Call move_sese_region_to_fn to outline the sub-graph
        containing the parallel region.
        (expand_omp_for_1): Remove.
        (expand_omp_for_generic): Re-implement to emit code into the
        CFG.
        (expand_omp_for_static_nochunk): Likewise.
        (expand_omp_for_static_chunk): Likewise.
        (expand_omp_for): Likewise.
        (expand_omp_sections): Likewise.
        (remove_exit_barriers): New.
        (expand_omp_synch): New.
        (expand_omp): New.
        (build_omp_regions_1): New.
        (build_omp_regions): New.
        (execute_expand_omp): New.
        (gate_expand_omp): New.
        (pass_expand_omp): Define.
        (lower_omp_sections): Rename from expand_omp_sections.
        Set OMP_SECTIONS_SECTIONS.
        (lower_omp_single_simple): Rename from expand_omp_single_simple.
        (lower_omp_single_copy): Rename from expand_omp_single_copy.
        (lower_omp_single): Rename from expand_omp_simple.
        (lower_omp_master): Rename from expand_omp_master.
        (lower_omp_ordered): Rename from expand_omp_ordered.
        (lower_omp_critical): Rename from expand_omp_critical.
        (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
        (lower_omp_for): Re-implement.
        (lower_omp_parallel): Re-implement.
        (lower_regimplify): Rename from expand_regimplify.
        (lower_omp_1): Rename from expand_omp_1.
        If there are syntax errors in the program, replace every
        OpenMP directive with NOP.
        Call lower_omp_* instead of expand_omp_*.
        (lower_omp): Rename from expand_omp.

        * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
        * tree-gimple.h (enum omp_parallel_type): Remove.
        (gimple_boolify): Declare extern.
        (find_omp_clause, determine_parallel_type): Remove.

        * gimple-low.c (lower_omp_directive): New.
        (lower_stmt): Call it.
        (record_vars_into): Move from ...
        (record_vars): ... here.
        Call record_vars_into with current_function_decl.

        * gimplify.c (struct gimplify_ctx): Remove fields
        combined_pre_p and combined_ctxp.  Update users.
        (get_formal_tmp_var): Add documentation.
        (gimple_boolify): Make extern.
        (gimplify_expr_in_ctx): Remove.  Update callers.
        (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
        will always be a BIND_EXPR.
        (gimplify_expr): Handle OMP_RETURN_EXPR.
        * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
        (OMP_PARALLEL): Add 3 operands.
        (OMP_SECTIONS): Add 1 operand.
        (OMP_RETURN_EXPR): Define.

        * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
        (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
        * tree-iterator.c (alloc_stmt_list): Assert that we are not
        creating a circular free list.
        (free_stmt_list): Assert that we are not freeing stmt_list_cache.

        * tree-flow.h (move_sese_region_to_fn): Declare.
        (record_vars_into): Declare.
        * tree-cfg.c (make_omp_sections_edges): New.
        (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
        OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
        OMP_SECTIONS and OMP_SECTION.
        (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
        (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
        (verify_stmt): Do not handle OMP_DIRECTIVE_P.
        (gather_blocks_in_sese_region): New.
        (struct move_stmt_d): Declare.
        (move_stmt_r): New.
        (move_block_to_fn): New.
        (move_sese_region_to_fn): New.

        * passes.c (init_optimization_passes): Schedule
        pass_expand_omp after pass_init_datastructures.

        * tree-ssa-operands.c (get_expr_operands): Handle
        OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
        OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.

2006-01-19  Jeff Law  <law@redhat.com>

        * tree-vrp.c (extract_range_from_assert): Refine the result range
        if the variable referenced by the ASSERT_EXPR has a range and
        either the tentative result range or the previous range is a
        VR_ANTI_RANGE.

2006-01-19  Richard Sandiford  <richard@codesourcery.com>

        * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.

2006-01-19  Jan Hubicka  <jh@suse.cz>

        * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.

2006-01-19  Paolo Bonzini  <bonzini@gnu.org>

        * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
        (expand_compound_operation, expand_field_assignment): Fail if the
        bit lengths of an extract operation are out of range.
        (make_extraction): Compute wanted_inner_mode based on the position
        and length of the extraction.  Make it extraction_mode for non-constant
        positions, and do not modify offset in that case.  When generating a
        new MEM, use a mode that can hold the extraction while keeping correct
        alignment.  Remove code that supported MEMs wrapped by USEs.
        (simplify_shift_const_1, force_to_mode) <case USE>: Remove.

2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md ("Y", "y"): New mode attribute.
        ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
        "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
        "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
        "*addsi3_imm_cc", "*addsi3_carry1_cc",
        "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
        "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
        "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
        "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
        "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
        "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
        "addsi3", "subsi3"): Insn patterns removed.
        ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
        "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
        "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
        "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
        "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
        "*sub<mode>3_cconly2"): New insn patterns.
        ("addsi3", "subsi3"): New expanders.

2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>

        * Makefile.in (tree-vect-patterns.o): Add rule for new file.
        * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
        existing STMT_VINFO_VECTYPE if available.
        (vect_mark_relevant): Add special handling for stmts that are
        marked as STMT_VINFO_IN_PATTERN_P.
        (vect_analyze_loop): Call vect_pattern_recog.
        * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
        * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
        stmt_info.
        (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
        (vect_recog_func_ptr): New function-pointer type.
        * tree-vect-patterns.c: New file.
        (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
        (vect_recog_dot_prod_pattern, vect_pattern_recog):
        (vect_pattern_recog_1): New functions.
        (vect_pattern_recog_funcs): New array of function pointers.

        * tree-vectorizer.h (ternary_op): New enum value.
        * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
        declaration. Revised documentation. Removed redundant dump prints.
        Removed redundant argument. Added support for reduction patterns.
        (vectorizable_reduction): Added support for reduction patterns.
        (vect_transform_stmt): Added support for patterns.

        * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
        * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
        * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
        (expand_widen_pattern_expr): New function.
        (init_optabs): Initialize new optabs udot_prod_optab,
        sdot_prod_optab.
        * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
        (sdot_prod_optab, udot_prod_optab): Define new optabs.
        (expand_widen_pattern_expr): New function declaration.
        * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
        tree-codes.
        * tree-inline.c (estimate_num_insns_1): Added cases for new
        tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
        * tree-pretty-print.c (dump_generic_node): Likewise.
        (op_prio): Likewise.
        (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
        * tree-ssa-operands.c (get_expr_operands): Added case for
        DOT_PROD_EXPR.
        * tree-vect-patterns.c (widened_name_p): New function.
        (vect_recog_dot_prod_pattern): Added function implementation.
        * tree-vect-transform.c (get_initial_def_for_reduction): Added
        cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
        * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
        * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.

        * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
        * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
        * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
        (init_optabs): Initialize new optabs widen_ssum_optab,
        widen_usum_optab.
        * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
        (widen_ssum_optab, widen_usum_optab): Define new optabs.
        * tree-vect-generic.c: (expand_vector_operations_1): Check type of
        use instead of type of def.
        * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
        function implementation.
        * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
        widen_ssumv8hi): New.

        * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
        patterns.

2006-01-19  Richard Sandiford  <richard@codesourcery.com>

        PR c/25805
        * c-decl.c (add_flexible_array_elts_to_size): New function.
        (finish_decl): Use it.

2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>

        * diagnostic.h: Include options.h.
        * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
        dependancies for diagnostic.h.
        * Makefile.in (DIAGNOSTIC_H): Add options.h.

2006-01-16  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
        (ssa_ro_call_cache_valid): Ditto.
        * tree-ssa-alias.c (sort_tags_by_id): New function.
        (init_transitive_clobber_worklist): Ditto.
        (add_to_worklist): Ditto.
        (mark_aliases_call_clobbered): Ditto.
        (compute_tag_properties): Ditto.
        (set_initial_properties): Ditto.
        (compute_call_clobbered): Ditto.
        (compute_may_aliases):  Call compute_call_clobbered and grouping.
        (compute_flow_sensitive_aliasing): Remove clobbering related code.
        (compute_flow_insensitive_aliasing): Grouping now happens in our
        caller.
        (setup_pointers_and_addressables): Remove clobbering related code.
        (add_may_alias): Ditto.
        (replace_may_alias): Ditto.
        (get_nmt_for): Ditto.
        (create_global_var):
        (is_escape_site): Return an escape_type enumeration.
        * tree-flow-inline.h (is_call_clobbered):  Global var does not
        imply call clobbered.
        (mark_call_clobbered): Take a reason for marking this. Remove
        marking of globalness, and cache invalidation.
        (clear_call_clobbered): Remove cache invalidation code.
        * tree-dfa.c (dump_variable): If details is on, dump the reason
        for escaping.
        * tree-outof-ssa.c (create_temp): Copy escape mask from original
        variable.
        * tree-flow.h (struct ptr_info_def): Add escape mask member.
        (struct var_ann_d): Ditto.
        (enum escape_type): New.
        (mark_call_clobbered): Adjust prototype.
        * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
        are never call clobbered.
        Record reasons for escaping.
        * tree-ssa-structalias.h (is_escape_site): Update prototype.
        * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
        (ssa_ro_call_cache_valid): Ditto.
        (clobbered_v_may_defs): Ditto.
        (clobbered_vuses): Ditto.
        (ro_call_vuses): Ditto.
        (clobber_stats): New.
        (init_ssa_operands): Zero out clobber stats.
        (fini_ssa_operands): Print out clobber stats.
        (get_call_expr_operands): Pass callee fndecl to
        add_call_read_ops).
        (add_call_clobber_ops): Remove use of cache.
        Add use of PURE_CONST information.
        (add_call_read_ops): Remove use of cache.
        Add use of static not_read information.

2006-01-18  Alexandre Oliva  <aoliva@redhat.com>

        Introduce TLS descriptors for i386 and x86_64.
        * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
        (TARGET_ANY_GNU_TLS): New macro.
        (enum tls_dialect): Added TLS_DIALECT_GNU2.
        (struct machine_function): Add tls_descriptor_call_expanded_p.
        (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
        (ix86_current_function_calls_tls_descriptor): Likewise.
        * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
        (override_options): Introduce gnu2 tls dialect.
        (ix86_frame_pointer_required): Functions containing TLSCALLs are
        not leaves.
        (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
        Likewise.
        (legitimize_tls_address): Adjust logic for GNU2 TLS.
        (ix86_init_machine_status): Initialize new field.
        (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
        (ix86_tls_module_base): New.
        * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
        * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
        (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
        (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
        (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
        (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
        (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
        (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
        * config/i386/predicates.md (tls_modbase_operand): New.
        (tp_or_register_operand): New.

2006-01-18  Daniel Berlin  <dberlin@dberlin.org>

        * ipa-reference.c (check_operand):  Allow FUNCTION_DECL.
        (look_for_address_of): Ditto.
        (ipa_init): Walk the function decls.
        (static_execute): Don't set readonly on FUNCTION_DECL's.

2006-01-18  Roger Sayle  <roger@eyesopen.com>

        * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
        for shifts where the source and destination registers are different.

2006-01-18  Paul Brook  <paul@codesourcery.com>

        Merge from csl-arm-branch.
        2005-03-14  Julian Brown  <julian@codesourcery.com>
        * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
        (aeabi_llsl): Likewise.
        (ashrdi3): Likewise.
        (aeabi_lasr): Likewise.
        (lshrdi3): Likewise.
        (aeabi_llsr): Likewise.
        2005-03-10  Julian Brown  <julian@codesourcery.com>
        * config.gcc: Disable shared libgcc for SymbianOS.
        * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.

2006-01-18  DJ Delorie  <dj@redhat.com>

        * c-pragma.c (handle_pragma_diagnostic): New.
        (init_pragma): Register it.
        * doc/extend.texi: Document it.

        * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
        * diagnostic.h (diagnostic_classify_diagnostic): Declare.
        (diagnostic_context): Add classify_diagnostic[].
        * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
        as errors if they're overridden to DK_WARNING.
        (diagnostic_initialize): Initialize classify_diagnostic[].
        (diagnostic_set_kind_override): New.
        (diagnostic_report_diagnostic): Check for kind changes.
        * opts.c (common_handle_option): Take lang_mask.  Update callers.
        Handle OPT_Werror_.
        * common.opt (Werror=): New.
        * doc/invoke.texi: Document -Werror=*

2006-01-18  Jeff Law  <law@redhat.com>

        * tree-vrp.c (test_for_singularity): Correct test for new
        min limit.  Use operand_equal_p rather than pointer equality
        for testing if new min/max values are equal.

        * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
        using range information until after propagation and folding.

2006-01-18  Richard Henderson  <rth@redhat.com>
            Aldy Hernandez  <aldyh@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>
            Diego Novillo  <dnovillo@redhat.com>

        * omp-low.c: New file.
        * c-omp.c: New file.

2006-01-18  Richard Henderson  <rth@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>
            Diego Novillo  <dnovillo@redhat.com>

        * doc/invoke.texi: Document -fopenmp.
        * tree-dump.h (debug_function): Declare.
        * hooks.c (hook_bool_tree_bool_false): New function.
        (hook_tree_tree_null): Remove.
        (hook_tree_tree_tree_null): New.
        * hooks.h: Update to match.
        * tree-pretty-print.c (debug_tree_chain): New.
        (print_generic_expr): Handle TDF_CHAIN.
        (dump_generic_node): Handle BLOCK.
        Do not abort with incomplete SWITCH_EXPRs.
        Do not dump body of an OpenMP directive if TDF_SLIM is given.
        <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
        print space after directive name.
        <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
        Handle OMP_MASTER and OMP_ORDERED.
        Handle printing of OMP_BODY just in one place, goto
        dump_omp_body in the rest of OMP_* nodes that have
        OMP_BODY.
        Don't handle clause nodes here.  Update omp statements to
        use dump_omp_clauses.
        Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
        OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
        OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
        GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
        GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
        GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
        Adjust output for GOMP_PARALLEL.
        (dump_omp_clauses): New.
        (print_declaration): Dump DECL_VALUE_EXPR.
        (op_symbol_1): Split out of op_symbol.
        (dumping_stmts): Remove.  Update all users.
        * cgraph.c (cgraph_analyze_queue): New.
        (cgraph_add_new_function): New.
        * cgraph.h (cgraph_analyze_queue): Declare.
        (cgraph_add_new_function): Declare.
        (cgraph_lower_function): Remove.
        * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
        nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
        and TYPE_P nodes in its default clause.
        (empty_body_p): New.
        (tree_range_check_failed): New.
        (build5_stat): New.
        * tree.h (OMP_CLAUSE_REDUCTION_INIT,
        OMP_CLAUSE_REDUCTION_MERGE,
        OMP_CLAUSE_REDUCTION_PLACEHOLDER,
        OMP_CLAUSE_PRIVATE_DEBUG,
        OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
        OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
        OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
        OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
        OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
        OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
        OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
        OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
        OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
        OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
        OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
        OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
        OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
        OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
        (TREE_RANGE_CHECK): New.
        (empty_body_p): Declare.
        (enum omp_clause_default_kind): New.
        (build_string_literal): Declare.
        (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
        (build5_stat, build5): Declare.
        * tree-pass.h (TDF_CHAIN): Define.
        * tree-pass.h (PROP_gimple_lomp): Define.
        (pass_lower_omp): Declare.
        * diagnostic.h (debug_tree_chain): Declare.
        * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
        mode_for_size.
        (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
        * builtins.c (build_string_literal): Make extern.
        * gcc.c (include_spec_function): New.
        (static_spec_functions): Add it.
        (main): Move load of libgomp.spec ...
        (LINK_COMMAND_SPEC): ... here.
        (link_gomp_spec): New.
        (static_specs): Include it.
        (LINK_COMMAND_SPEC): Add link_gomp.
        (GOMP_SELF_SPECS): New.
        (driver_self_specs): Include it.
        (switch_matches): Don't mark inline.
        (main): Load libgomp.spec.
        * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
        OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
        and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
        * tree-gimple.h (enum omp_parallel): Declare.
        (determine_parallel_type): Declare.
        (omp_firstprivatize_variable): Declare.
        (omp_reduction_init): Declare.
        (diagnose_omp_structured_block_errors): Declare.
        (struct walk_stmt_info): Add want_return_expr.
        (struct walk_stmt_info): Add want_bind_expr, want_locations.
        (find_omp_clause): Declare.
        (insert_field_into_struct): Declare.
        (struct walk_stmt_info): Move from tree-nested.c
        (walk_stmts): Declare.
        * c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
        to 200505.
        * cgraphunit.c (cgraph_lower_function): Make static.
        (cgraph_finalize_pending_functions): New.
        (cgraph_finalize_function): Call it.
        (cgraph_finalize_compilation_unit): Likewise.
        * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
        BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
        (BT_FN_UINT_UINT): New.
        (DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
        DEF_FUNCTION_TYPE_VAR_4): Document.
        (BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
        BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
        BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
        BT_FN_VOID_OMPFN_PTR_UINT_UINT,
        BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
        BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
        BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
        BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
        * builtins.def: Update DEF_BUILTIN comment to include COND argument.
        Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
        into separate files.
        (DEF_GOMP_BUILTIN): New.
        (BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
        BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
        BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
        BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
        BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
        BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
        BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
        BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
        BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
        BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
        BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
        BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
        BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
        BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
        BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
        BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
        BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
        BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
        BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
        BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
        BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
        BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
        BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
        BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
        BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
        BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
        * sync-builtins.def: New file, moved from builtins.def.
        * omp-builtins.def: New file, moved from builtins.def.
        * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
        * gimple-low.c (lower_function_body): Clear data.
        (lower_stmt): Do not handle COMPOUND_EXPR.
        Remove call to print_node_brief.
        * c-tree.h (c_finish_omp_clauses): New prototype.
        (C_DECL_THREADPRIVATE_P): Define.
        (lookup_name_no_remap, c_omp_remap_private): Remove
        (c_begin_omp_parallel, c_finish_omp_parallel): Update.
        (check_for_loop_decls): Update decl.
        (lookup_name_no_remap, c_omp_remap_private): Declare.
        (build_indirect_ref, build_modify_expr, pushdecl,
        pushdecl_top_level): Move to c-common.h.
        * dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
        before the switch, but just in the 2 places that need it.
        * c-decl.c (diagnose_mismatched_decls): Do not check for
        mismatched thread-local attributes when OLDDECL is marked
        threadprivate and NEWDECL has no thread-local attributes.
        (merge_decls): Merge C_DECL_THREADPRIVATE_P.
        (c_gimple_diagnostics_recursively): Rename from
        c_warn_unused_result_recursively.  Invoke
        diagnose_omp_structured_block_errors.
        (check_for_loop_decls): Return a singular decl found.
        * langhooks.c (lhd_omp_predetermined_sharing): Return
        OMP_CLAUSE_DEFAULT_SHARED for DECL_ARTIFICIAL decls.
        (lhd_omp_firstprivatize_type_sizes): New.
        (lhd_omp_assignment): New.
        (lhd_omp_predetermined_sharing): New.
        * langhooks.h (struct gimplify_omp_ctx): Forward declare.
        (struct lang_hooks_for_types): Add
        omp_firstprivatize_type_sizes, omp_privatize_by_reference,
        omp_predetermined_sharing, omp_disregard_value_expr,
        omp_private_debug_clause, omp_clause_default_ctor,
        omp_clause_copy_ctor, omp_clause_assign_op, omp_clause_dtor.
        (c_finish_omp_clauses): New.
        (c_finish_bc_stmt): Diagnose break within omp for.
        (c_begin_omp_parallel, c_finish_omp_parallel): New.
        (build_unary_op): Return error_mark after reporting
        a readonly_error.
        (build_modify_expr): Likewise.
        * gimplify.c: Include optabs.h and pointer-set.h.
        (enum gimplify_omp_var_data): Declare.
        (struct gimplify_omp_ctx): Declare.
        (struct gimplify_ctx): Add fields prev_context, combined_pre_p
        and combined_ctxp.
        (gimplify_ctxp, gimplify_omp_ctxp): New local variables.
        (push_gimplify_context, pop_gimplify_context): Allow nesting.
        (splay_tree_compare_decl_uid): New.
        (new_omp_context): New.
        (delete_omp_context): New.
        (gimple_add_tmp_var): Call omp_add_variable.
        (gimplify_bind_expr): Likewise.
        (gimplify_var_or_parm_decl): If omp_notice_variable returned
        true, disregard DECL_VALUE_EXPR on the decl if any.
        (gimplify_expr_in_ctx): New.
        (omp_firstprivatize_variable, omp_firstprivatize_type_sizes
        omp_add_variable, omp_notice_variable, omp_is_private
        gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses_1
        gimplify_adjust_omp_clauses, gimplify_omp_parallel
        gimplify_omp_for, gimplify_omp_workshare, goa_lhs_expr_p
        gimplify_omp_atomic_fetch_op, goa_stabilize_expr
        gimplify_omp_atomic_pipeline, gimplify_omp_atomic_mutex
        gimplify_omp_atomic): New.
        (gimplify_expr): Handle OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
        OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
        OMP_CRITICAL and OMP_ATOMIC.
        (gimplify_body): Verify gimplify_ctxp is empty after gimplification.
        * c-pragma.h (enum pragma_kind): Add
        PRAGMA_OMP_ATOMIC, PRAGMA_OMP_BARRIER,
        PRAGMA_OMP_CRITICAL, PRAGMA_OMP_FLUSH, PRAGMA_OMP_FOR,
        PRAGMA_OMP_MASTER, PRAGMA_OMP_ORDERED,
        PRAGMA_OMP_PARALLEL, PRAGMA_OMP_PARALLEL_FOR,
        PRAGMA_OMP_PARALLEL_SECTIONS, PRAGMA_OMP_SECTION,
        PRAGMA_OMP_SECTIONS, PRAGMA_OMP_SINGLE,
        PRAGMA_OMP_THREADPRIVATE.
        * tree.def (OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
        OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
        OMP_CRITICAL, OMP_ATOMIC, OMP_CLAUSE_PRIVATE,
        OMP_CLAUSE_SHARED, OMP_CLAUSE_FIRSTPRIVATE,
        OMP_CLAUSE_LASTPRIVATE, OMP_CLAUSE_REDUCTION,
        OMP_CLAUSE_COPYIN, OMP_CLAUSE_COPYPRIVATE,
        OMP_CLAUSE_IF, OMP_CLAUSE_NUM_THREADS,
        OMP_CLAUSE_SCHEDULE, OMP_CLAUSE_NOWAIT,
        OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Define.
        * print-tree.c (print_node): Dump DECL_VALUE_EXPR.
        * tree-ssa-dce.c (find_control_dependence): Do not assume that
        ENTRY_BLOCK_PTR->next_bb == single_succ (ENTRY_BLOCK_PTR).
        * tree-nested.c (convert_call_expr): Call walk_body on OMP_BODY for
        OpenMP directives.
        (struct nesting_info): Add field_map,
        suppress_expansion, debug_var_chain.
        (create_nesting_tree): Initialize them.
        (lookup_field_for_decl): Use field_map.
        (get_nonlocal_debug_decl, get_local_debug_decl): New.
        (convert_local_omp_clauses): New.
        (finalize_nesting_tree_1): Add debug_var_chain to toplevel block.
        (walk_body): Split out of walk_function.
        (convert_nonlocal_omp_clauses, convert_local_omp_clauses): New.
        (convert_nonlocal_reference): Handle omp statements.
        (convert_local_reference): Likewise.
        (unnest_nesting_tree_1): Split out of finalize_nesting_tree_1.
        (unnest_nesting_tree): New.
        (lower_nested_functions): Call it.
        (insert_field_into_struct): Make extern.
        (struct walk_stmt_info): Move to tree-gimple.h.
        (walk_stmts): Make extern.
        * omp-builtins.def: New file.
        * tree-iterator.c (expr_only): Clarify comment.
        * c-common.h (pushdecl_top_level, pushdecl,
        build_modify_expr, build_indirect_ref,
        c_finish_omp_master, c_finish_omp_critical,
        c_finish_omp_ordered, c_finish_omp_barrier,
        c_finish_omp_atomic, c_finish_omp_flush,
        c_finish_omp_for, c_split_parallel_clauses,
        omp_clause_default_kind, c_omp_sharing_predetermined,
        c_omp_remap_decl): Declare.
        * Makefile.in (BUILTINS_DEF): Add omp-builtins.def.
        (OBJS-common): Add omp-low.o.
        (c-omp.o, omp-low.o): Add.
        (gimplify.o): Add dependency on $(OPTABS_H).
        (GTFILES): Add omp-low.c.
        (gt-stringpool.h): Add.
        * tree-cfg.c (set_bb_for_stmt): Do not update the
        block-to-labels map if we are currently expanding to RTL.
        (tree_node_can_be_shared): Remove unnecessary CONSTANT_CLASS_P
        checks.
        Handle IDENTIFIER_NODE.
        (tree_verify_flow_info): Do not ICE when emitting error
        messages about invalid labels.
        (dump_function_to_file): Reset CFUN before emitting the body
        of the function.
        (debug_function): New.
        * passes.c (init_optimization_passes): Schedule
        pass_lower_omp.
        * langhooks-def.h (lhd_omp_predetermined_sharing,
        lhd_omp_assignment, lhd_omp_firstprivatize_type_sizes):
        Declare.
        (LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
        (LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
        (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE,
        LANG_HOOKS_OMP_PREDETERMINED_SHARING,
        LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
        LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE,
        LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR,
        LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
        LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP,
        LANG_HOOKS_OMP_CLAUSE_DTOR): Define.
        (LANG_HOOK_DECLS): Use them.

2006-01-18  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
            Richard Henderson  <rth@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>
            Diego Novillo  <dnovillo@redhat.com>

        * c-parser.c (pragma_omp_clause): Define.
        (c_parser_declaration_or_fndef): Document OpenMP syntax.
        (c_parser_compound_statement): Likewise.
        (c_parser_statement): Likewise.
        (c_parser_pragma): Handle omp pragmas.
        (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
        OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK): Define.
        (c_parser_omp_clause_name, check_no_duplicate_clause,
        c_parser_omp_variable_list,
        c_parser_omp_var_list_parens, c_parser_omp_clause_copyin,
        c_parser_omp_clause_copyprivate,
        c_parser_omp_clause_default,
        c_parser_omp_clause_firstprivate, c_parser_omp_clause_if,
        c_parser_omp_clause_lastprivate,
        c_parser_omp_clause_nowait,
        c_parser_omp_clause_num_threads,
        c_parser_omp_clause_ordered, c_parser_omp_clause_private,
        c_parser_omp_clause_reduction,
        c_parser_omp_clause_schedule, c_parser_omp_clause_shared,
        c_parser_omp_all_clauses, c_parser_omp_structured_block,
        c_parser_omp_atomic, c_parser_omp_barrier,
        c_parser_omp_critical, c_parser_omp_flush,
        c_parser_omp_for_loop, c_parser_omp_for,
        c_parser_omp_master, c_parser_omp_ordered,
        c_parser_omp_sections_scope, c_parser_omp_sections,
        c_parser_omp_parallel, c_parser_omp_single,
        c_parser_omp_construct, c_parser_omp_threadprivate): New.
        * c-pragma.c (init_pragma): Do omp pragma registration here.
        * c.opt (fopenmp): New flag.

2006-01-18  Eric Christopher  <echristo@apple.com>

        * gcc.c (GOMP_SELF_SPECS): Bracket in #ifndef/#endif.
        * config/darwin.h (GOMP_SELF_SPECS): Define.

2006-01-18  Kazu Hirata  <kazu@codesourcery.com>

        * rtl.h: Remove the prototype for reg_alloc.

2006-01-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/25731
        * config.gcc (hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*,
        hppa[12]*-*-hpux11*): Override default shared libgcc version for both
        sjlj and dwarf2 exception handling.
        * pa/t-hpux-shlib (SHLIB_SOVERSION): New make variable.
        Rework to allow overriding SHLIB_EXT and SHLIB_SOVERSION.
        * pa/pa.c (function_value): Treat complex and vector types as
        aggregates.
        (function_arg): Likewise.  Only pass scalar floats in the floating
        point argument registers.
        * pa/t-slibgcc-dwarf-ver: New file.
        * pa/t-slibgcc-sjlj-ver: New file.
        * pa/t-slibgcc-elf-ver: Delete file.

2006-01-19  Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/rs6000.c (rs6000_assemble_integer): Correct
        unlikely_test_section_p test.

2006-01-18  Kazu Hirata  <kazu@codesourcery.com>

        * mode-switching.c (optimize_mode_switching): Make it static.
        * basic-block.h: Remove the prototype for
        optimize_mode_switching.

        * modulo-sched.c (sms_schedule): Make it static.
        * rtl.h: Remove the prototype for sms_schedule.

        * postreload-gcse.c (gcse_after_reload_main): Make it static.
        * rtl.h: Remove the prototype for gcse_after_reload_main.

        * reg-stack.c (reg_to_stack): Make it static.
        * rtl.h: Remove the prototype for reg_to_stack.

        * regrename.c (regrename_optimize, copyprop_hardreg_forward):
        Make them static.
        * rtl.h: Remove the prototypes for regrename_optimize and
        copyprop_hardreg_forward.

2006-01-18  Eric Botcazou  <ebotcazou@adacore.com>

        * config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
        alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
        Test against the appropriate null constant for the mode.
        If 'fixup_overlap' is true, swap the operands if they overlap.
        (alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
        * config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
        alpha_split_tmode_pair and adjust for above change.
        * config/alpha/alpha.md (movtf_internal): Adjust call to
        alpha_split_tfmode_pair and rely on it to swap the operands.
        (movti_internal): New insn and post-reload splitter.
        (movti): New expander.

2006-01-18  Philippe De Muyter  <phdm@macqel.be>

        * config/m68k/m68k.md (*addsi3_5200): Allow addq/subq to memory
        operands.

2006-01-18  Kazu Hirata  <kazu@codesourcery.com>

        * rtlanal.c (global_reg_mentioned_p_1,
        global_reg_mentioned_p): Remove.
        * rtl.h: Remove the prototype for global_reg_mentioned_p.

        * flow.c (initialize_uninitialized_subregs): Make it static.
        * rtl.h: Remove the prototype for
        initialize_uninitialized_subregs.

        * function.c (instantiate_virtual_regs): Make it static.
        * function.h: Remove the prototype for
        instantiate_virtual_regs.

        * regmove.c (regmove_optimize, combine_stack_adjustments):
        Make them static.
        * rtl.h: Remove the prototypes for regmove_optimize and
        combine_stack_adjustments.

2006-01-17  Roger Sayle  <roger@eyesopen.com>

        * config/i386/i386.c (COSTS_N_BYTES): New macro.
        (size_cost): Encode costs in bytes so that a reg-reg addition is
        equivalent to COSTS_N_INSNS(1).
        (override_options): Use the size_cost.branch_cost as the default
        ix86_branch_cost when optimizing for size.

2006-01-18  Ben Elliston  <bje@au.ibm.com>

        * Makefile.in (D32PBIT_FUNCS): New.
        (D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
        (libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
        D64PBIT_FUNCS and D128PBIT_FUNCS.
        (LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
        * mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
        D128PBIT are set.
        (decnumber_dep): Define.
        * doc/libgcc.texi (Decimal float library routines): New node.
        * config/dfp-bit.h, config/dfp-bit.c: New files.

2006-01-18  Ben Elliston  <bje@au.ibm.com>

        * expr.c (emit_move_change_mode): Always adjust addresses, not
        just during reload.  Copy replacements only during reload.
        (emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
        emit_move_via_integer.

2006-01-17  Shantonu Sen  <ssen@opendarwin.org>

        * Makefile.in (check-%, check-consistency): Use $${srcdir}
        instead of $(srcdir) and ${srcdir}.

2006-01-17  Richard Earnshaw  <rearnsha@arm.com>

        PR target/592
        PR middle-end/11135
        * arm.h (struct machine_function): Add pic_reg.
        * arm.c (arm_pic_register): Make unsigned.
        (arm_override_options): Only set arm_pic_register if
        TARGET_SINGLE_PIC_BASE.
        (use_return_insn): Only test for a pic register if it is fixed.
        (arm_compute_save_reg0_reg12_mask): Likewise.
        (thumb_compute_save_reg_mask): Likewise.
        (legitimate_pic_operand): Factor out some known invariants.
        (legitimize_pic_address): If we don't have a fixed pic register,
        then set up a pseudo in the function entry sequence.  Handle the
        pic base being in a pseudo.
        (arm_load_pic_register): Handle the pic register being in a pseudo.
        (arm_expand_prologue): Only set up the pic register if it is fixed.
        (thumb_expand_prologue): Likewise.
        * arm.md (pic_load_addr_based): Handle the pic base being a pseudo.
        (pic_load_addr_based_insn): Likewise.
        (builtin_setjmp_receiver): Don't restore the pic base if it isn't
        fixed.

2006-01-18  Ben Elliston  <bje@au.ibm.com>

        * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Reject
        decimal float modes for all floating point registers.

        * config/rs6000/predicates.md (reg_or_mem_operand): Pair up
        match_code "mem" with match_test "macho_lo_sum_memory_operand".

2006-01-17  Jakub Jelinek  <jakub@redhat.com>

        PR c/25682
        * c-typeck.c (build_unary_op): Fold offsetof-like expressions
        even when the pointer is not NULL.

2006-01-16  Ian Lance Taylor  <ian@airs.com>

        * common.opt (ftoplevel-reorder): New option.
        * cgraph.c (cgraph_asm_nodes): New global variable.
        (cgraph_asm_last_node): New static variable.
        (cgraph_order): New global variable.
        (cgraph_create_node): Set new order field.
        (cgraph_varpool_node): Likewise.
        (decide_is_variable_needed): Return true if not
        flag_toplevel_reorder.
        (cgraph_add_asm_node): New function.
        * cgraph.h (struct cgraph_node): Add order field.
        (struct cgraph_varpool_node): Add order field.
        (struct cgraph_asm_node): Define.
        (cgraph_asm_nodes, cgraph_order): Declare.
        (cgraph_add_asm_node): Declare.
        * cgraphunit.c (cgraph_varpool_assemble_decl): New static
        function.
        (cgraph_varpool_assemble_pending_decls): Call it.
        (cgraph_output_pending_asms): New static function.
        (cgraph_finalize_compilation_unit): Call it.
        (struct cgraph_order_sort): Define.
        (cgraph_output_in_order): New static function.
        (cgraph_optimize): Call cgraph_output_pending_asms.  Add code for
        !flag_toplevel_reorder case.
        * c-parser.c: Include "cgraph.h".
        (c_parser_asm_definition): Call cgraph_add_asm_node rather than
        assemble_asm.
        * Makefile.in (CRTSTUFF_CFLAGS): Use -fno-toplevel-reorder rather
        than -fno-unit-at-a-time.
        * doc/invoke.texi (Option Summary): Mention
        -fno-toplevel-reorder.
        (Optimize Options): Document -fno-toplevel-reorder.  Mention it in
        -funit-at-a-time documentation.

2006-01-17  Hans-Peter Nilsson  <hp@axis.com>
            Kazu Hirata  <kazu@codesourcery.com>

        * Makefile.in (FUNCTION_H, LAMBDA_H): Use $(TREE_H), not tree.h.

2006-01-17  Kazu Hirata  <kazu@codesourcery.com>

        * Makefile.in (FUNCTION_H): New.  Use it instead of
        function.h throughout the file.
        * function.h: Include tree.h.

2006-01-17  Ben Elliston  <bje@au.ibm.com>

        * recog.c: Separate some functions with whitespace.

2006-01-16  Richard Henderson  <rth@redhat.com>

        Merge from gomp branch:
        * Makefile.in (TREE_INLINE_H): New.  Use it as needed.
        * tree-inline.h (struct copy_body_data): Move from tree-inline.c
        and rename from struct inline_data.  Rename callee* to dst*;
        caller* to src*; add copy_decl hook, transform_call_graph_edges,
        transform_new_cfg, transform_return_to_modify, and
        transform_lang_insert_block flags; remove cloning_p, versioning_p,
        update_clones_p.
        (copy_body_r, insert_decl_map, remap_decl, remap_type): Declare.
        (copy_decl_for_dup): Remove.
        * tree-inline.c (struct inline_data): Move to header.
        (insert_decl_map): Export.
        (remap_decl): Update for member name changes.  Use copy_decl hook.
        Allow for replacement to be a non-decl.  Remove dead code.
        (remap_type_1): Check for existing mapping.
        (remap_type): Export.
        (remap_decls): Update for member name changes.
        (remap_block, copy_bb, copy_cfg_body, copy_generic_body): Likewise.
        (copy_body, setup_one_parameter, declare_return_variable): Likewise.
        (expand_call_inline, optimize_inline_calls, clone_body): Likewise.
        (copy_tree_r, mark_local_for_remap_r, unsave_expr_now): Likewise.
        (tree_function_versioning, build_duplicate_type): Likewise.
        (copy_body_r): Likewise.  Export.
        (copy_decl_for_dup): Split into ...
        (copy_decl_for_dup_finish, copy_decl_to_var,
        copy_decl_no_change, copy_decl_maybe_to_var): ... these.
        (replace_ref_tree, inlining_p): Remove.

2006-01-16  Kazu Hirata  <kazu@codesourcery.com>

        * ifcvt.c (if_convert): Make it static.
        * rtl.h: Remove the prototype for if_convert.

        * local-alloc.c (local_alloc): Make it static.
        * rtl.h: Remove the prototype for local_alloc.

        * loop.c (loop_optimize): Make it static.
        * cfgloop.h: Remove the prototype for loop_optimize.
        * rtl.h: Likewise.

2006-01-16  DJ Delorie  <dj@redhat.com>

        * reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
        mems.

2006-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.md: Disparage copies between general and floating-point registers
        in 32-bit move patterns.

2006-01-16  H.J. Lu  <hongjiu.lu@intel.com>

        PR testsuite/25741
        * Makefile.in (check-%): Depend on site.exp instead of
        $(TESTSUITEDIR)/site.exp. Run "runtest" in separate language
        directories.

2006-01-16  Kazu Hirata  <kazu@codesourcery.com>

        * global.c (global_alloc): Make it static.
        * rtl.h: Remove the prototype for global_alloc.

2006-01-16  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-alias.c (struct used_part): Add write_only field.
        (get_or_create_used_part_for): Initialize it to true.
        (create_overlap_variables_for): Don't create structure variables
        for structures that only are written to.
        (find_used_portions): Handle MODIFY_EXPR to track whether a
        structure is only written to.

2006-01-16  Kazu Hirata  <kazu@codesourcery.com>

        * bb-reorder.c (partition_hot_cold_basic_blocks): Make it
        static.
        * basic-block.h: Remove the prototype for
        partition_hot_cold_basic_blocks.

2006-01-16  Rafael Ãvila de EspÃ�­ndola <rafael.espindola@gmail.com>

        * cppspec.c (lang_specific_spec_functions): Remove.
        * gcc.c (lookup_spec_function): Use static_spec_functions directly.
        * gcc.h (lang_specific_spec_functions): Remove.
        * gccspec.c (lang_specific_spec_functions): Remove.

2006-01-16  Paolo Bonzini  <bonzini@gnu.org>

        * combine.c (record_value_for_reg): Invalidate registers
        if INSN is null.
        (record_dead_and_set_regs_1): Likewise, by passing them to
        record_value_for_reg.
        (record_dead_and_set_regs): Invalidate stores made by a
        call.  We do not combine across a call, but we still
        relied on equivalences.

2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-vrp.c (extract_range_from_binary_expr): Cope with
        vrp_int_const_binop returning non-constant nodes.

2006-01-16  Paul Brook  <paul@codesourcery.com>

        * config/m68k/m68k.c (output_move_const_into_data_reg):
        Output correct mnemonic for mvz and mvs.

2006-01-16  Gabor Loki  <loki@gcc.gnu.org>

        * rtl-factoring.c: Add sequence abstraction algorithm.
        * cfgcleanup.c (outgoing_edges_match): Extra checks.
        (try_crossjump_to_edge): Avoid deleting preserve label when redirecting
        ABNORMAL edges.
        (block_has_preserve_label): New function.
        * common.opt: Register new pass.
        * Makefile.in: Ditto.
        * passes.c: Ditto.
        * timevar.def: Ditto.
        * tree-pass.h: Ditto.
        * emit-rtl.c (make_jump_insn_raw): Remove forward decl.
        * rtl.h (make_jump_insn_raw): Add forward decl.
        * doc/invoke.texi: Add documentation for -frtl-abstract-sequences.

2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
            Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_minmax): New static function.
        (fold_binary) <MIN_EXPR>: Call it.
        <MAX_EXPR>: Likewise.
        * stor-layout.c (place_field): Use DECL_SIZE consistently
        in the computation of the new record size.

2006-01-16  Kazu Hirata  <kazu@codesourcery.com>

        * cse.c (cse_condition_code_reg): Make it static.
        * rtl.h: Remove the prototype for cse_condition_code_reg.

        * combine.c (combine_instructions): Make it static.
        * rtl.h: Remove the prototype for combine_instructions.

2006-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/25168
        * tree.c (get_file_function_name_long): Concatenate the first global
        object name with a string derived from the input filename of the object
        for type "F".

2006-01-16  Ben Elliston  <bje@au.ibm.com>

        * config/i386/winnt-stubs.c: Update FSF address.
        * config/xtensa/ieee754-df.S: Ditto.
        * config/xtensa/ieee754-sf.S: Ditto.

2006-01-14  Ian Lance Taylor  <ian@airs.com>

        * ifcvt.c (noce_init_if_info): New static function, broken out of
        noce_process_if_block.
        (noce_process_if_block): Call noce_init_if_info.
        (check_cond_move_block): New static function.
        (cond_move_process_if_block): New static function.
        (process_if_block): Call cond_move_process_if_block.

2006-01-15  Kazu Hirata  <kazu@codesourcery.com>

        * cselib.c (hash_table): Rename to cselib_hash_table.
        (cselib_clear_table, discard_useless_values,
        remove_useless_values, cselib_lookup_mem, cselib_lookup,
        cselib_init, cselib_finish): Adjust uses of hash_table.

2006-01-14  Kazu Hirata  <kazu@codesourcery.com>

        PR tree-optimization/25485
        * tree-vrp.c (extract_range_from_binary_expr): Handle cases
        where one of the operands of TRUTH_AND_EXPR and TRUTH_OR_EXPR
        is known to be false and true, respectively.

2006-01-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/22548
        PR tree-optimization/22555
        PR tree-optimization/22501
        * Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
        * params.def (salias-max-array-elements): New parameter.
        * params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
        * doc/invoke.texi (salias-max-array-elements): Document.
        * tree-flow-inline.h (var_can_have_subvars): We also handle
        arrays now.
        * tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
        COMPONENT_REF.
        * tree-ssa-structalias.c (params.h): Include.
        (push_fields_onto_fieldstack): Handle ARRAY_TYPE.
        (find_func_aliases): Handle multiple constraints from ARRAY_REF.
        (get_constraint_for): For ADDR_EXPR operating on something
        containing an ARRAY_REF, add all subvars to the solution.
        (handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
        * tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
        for creating MUST_DEFs.
        (get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.

2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
        functions.
        (number_of_iterations_ne, number_of_iterations_lt_to_ne,
        assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
        number_of_iterations_le): New functions.
        (number_of_iterations_special): Removed.
        (number_of_iterations_exit): Do not use number_of_iterations_special.
        * tree.c (unsigned_type_for): Always return integer type.

2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
        Richard Guenther  <rguenther@suse.de>

        PR rtl-optimization/24257
        * gcse.c (find_moveable_store): Only consider a store movable
        when the SET_SRC of the insn can be assigned to a register.

2006-01-14  Ian Lance Taylor  <ian@airs.com>

        * tree.c (tree_not_class_check_failed): New function.
        * tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
        (tree_not_class_check_failed): Declare.

2006-01-13  Ian Lance Taylor  <ian@airs.com>

        * reload1.c (do_output_reload): Add assertion rejecting a
        CALL_INSN.

2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (struct reg_stat): Add new fields truncation_label and
        truncated_to_mode.
        (record_value_for_reg): Reset truncated_to_mode.
        (record_truncated_value): New function.
        (check_promoted_subreg): Call it.  Rename to check_conversions.
        (combine_instructions): Rename check_promoted_subreg to
        check_conversions.
        (reg_truncated_to_mode): New function.
        (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
        (gen_lowpart_or_truncate): New function.
        (force_to_mode): Use it instead of gen_lowpart.

2006-01-13  Diego Novillo  <dnovillo@redhat.com>

        * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
        VAR is a tag, not its type tag.

2006-01-13  Alexandre Oliva  <aoliva@redhat.com>

        * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
        alternatives to match style of other entries.
        (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.

2006-01-13  Daniel Berlin  <dberlin@dberlin.org>

        PR tree-optimization/25771
        * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
        SSA_NAMES.

2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/24365
        * tree-inline.c (declare_return_variable): If the return variable
        was marked as a non gimple complex, set the return slot variable
        to be a non gimple comple variable.

2006-01-13  Richard Guenther  <rguenther@suse.de>

        * builtins.c (expand_builtin_sincos): New function.
        (expand_builtin_mathfn_3): Remove dead code, sin and cos
        do not set errno.
        (expand_builtin): Expand sincos using expand_builtin_sincos.

2006-01-12  DJ Delorie  <dj@redhat.com>

        * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
        shift counts, separate SI shifts for m32c vs m16c, pass shift type
        so that constant shifts can be split.
        * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
        (m32c_valid_pointer_mode): Make static.
        (shift_gen_func_for): New.
        (m32c_prepare_shift): Use it.  Split large const shifts into
        multiple shifts.
        * config/m32c/predicates.md (shiftcount_operand): Allow more
        general operands.
        (longshiftcount_operand): New.
        * doc/md.texi (Machine Constraints): Document In6.

2006-01-13  Ben Elliston  <bje@au.ibm.com>

        * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
        REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
        documentation.

2006-01-12  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
        to try to avoid clobbering pieces of structures when we know
        something about the whole structure.
        * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR

2006-01-13  Ben Elliston  <bje@au.ibm.com>

        * doc/rtl.texi (Insns): Remove statement that libcalls cannot
        return in memory, as this is no limitation is no longer present.

2006-01-12  DJ Delorie  <dj@redhat.com>

        * config/m32c/addsub.md (addhi3): Add two more alternatives, for
        mova with fb, and for fb+0 -> An.

        * config/m32c/mov.md (peephole2): Fix enabling logic.

        * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
        DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
        DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
        FINI_ARRAY_SECTION_ASM_OP): Define.

        * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
        variable.
        (m32c_legitimize_reload_address): New logic to reload FB to An.
        (m32c_output_reg_push): Add newline.
        (m32c_output_reg_pop): Likewise.

2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>

        * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.

2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>

        * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.

2006-01-11  Kazu Hirata  <kazu@codesourcery.com>

        * config/sh/predicates.md (sh_rep_vec): Add parallel to
        match_code.

2006-01-11  Ben Elliston  <bje@au.ibm.com>

        * rtlanal.c (find_reg_note): Assert insn is not null.

2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>

        * df-scan.c (df_hard_reg_init): Move declaration of i outside
        ifdef.

2006-01-11  Jeff Law  <law@redhat.com>

        * tree-ssa-threadupdate.c (threaded_edges): New VEC to
        hold edge pairs.
        (mark_threaded_blocks, register_jump_thread): New functions.
        (thread_through_all_blocks): Remove unwanted argument.  No
        longer rely on e->aux to communicate thread target info.
        Call mark_threaded_blocks.  Release the threaded_blocks
        bitmap and threaded_edges vector when complete.
        * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
        (threaded_blocks): Remove.
        (tree_ssa_dominator_optimize): Remove initialization and
        finalization of threaded_blocks.  Simplify call to
        thread_through_all_blocks.
        (thread_across_edge): Call register_jump_thread rather than
        storing thread information into e->aux.
        (free_all_edge_infos): Simplify now that e->aux is no longer
        used to communicate with thread_through_all_blocks.
        * tree-flow.h (thread_through_all_blocks): Update prototype.
        (register_jump_thread): Prototype.

2006-01-11  Kazu Hirata  <kazu@codesourcery.com>

        * df-core.c (df_compact_blocks, df_bb_replace): Use
        SET_BASIC_BLOCK instead of BASIC_BLOCK.

2006-01-11  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/25734
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
        stop propagation after successful propagation to the LHS.

2006-01-11  Kazu Hirata  <kazu@codesourcery.com>

        * basic-block.h (control_flow_graph): Change the type of
        x_basic_block_info to VEC(basic_block,gc) *.
        (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
        basic_block_info.
        (SET_BASIC_BLOCK): New.
        * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
        instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
        * cfgbuild.c (find_basic_blocks): Likewise.
        * cfglayout.c (fixup_reorder_chain): Likewise.
        * cfgrtl.c (create_basic_block_structure,
        rtl_create_basic_block): Likewise.
        * ifcvt.c (find_if_case_1): Likewise.
        * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
        Likewise.

2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>

        * Makefile.in: Removed rotted odf.c entry.

2006-01-11  Hans-Peter Nilsson  <hp@axis.com>

        PR target/25706
        * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
        ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
        ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
        output pattern modifier, not %e.
        * config/cris/cris.c (cris_op_str): Update comment about pattern
        modifier.
        (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
        before falling through into...
        <case 'E'>: Redefined from old 'e' case.

2006-01-11  Jan Hubicka  <jh@suse.cz>

        PR target/25042
        * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128

2006-01-11  Jan Hubicka  <jh@suse.cz>

        * i386.h (TARGET_DECOMPOSE_LEA): Kill.
        * i386.c (x86_decompose_lea): Kill.
        (ix86_rtx_costs): Kill.

2006-01-11  Jan Hubicka  <jh@suse.cz>

        * cgraph.c (cgraph_insert_node_to_hashtable): New function.
        * cgraph.h (cgraph_node): Add inline_decl.
        (cgraph_insert_node_to_hashtable): Declare.
        (save_inline_function_body): Declare.
        * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
        clones.
        (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
        (cgraph_function_versioning): Update call of tree_function_versioning.
        (save_inline_function_body): New function.
        * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
        saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
        * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
        (cgraph_default_inline_p): Likewise.
        (cgraph_decide_inlining_incrementally): Likewise.
        * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
        (copy_bb): Kill saving; do updating of clones.
        (copy_cfg_body): Kill saving.
        (initialize_inlined-parameters): Likewise.
        (expand_call_inline): Likewise.
        (save_body): Kill.
        (tree_function_versioning): New parameter "update_clones".
        (inlining_p): Kill saving.
        * tree-inline.h (tree_function_versioning): Update prototype.
        * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
        saving.

2006-01-11  Ian Lance Taylor <ian@airs.com>

        * combine.c (struct undo): Remove is_int.  Enumify types of undos.
        Allow undoing set of machine mode.
        (do_SUBST): Use enums instead of is_int.
        (do_SUBST_MODE): New function.
        (SUBST_MODE): New macro.
        (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
        reg and trying to replace reg_regno_rtx with a new register.
        (undo_all): Use new enums, handle undoing a PUT_MODE change.
        (simplify_set): Use SUBST_MODE.
        (distribute_notes): Remove code that tried to update reg notes
        for regno_reg_rtx changes.

2006-01-11  Paolo Bonzini  <bonzini@gnu.org>

        PR tree-optimization/23109
        PR tree-optimization/23948
        PR tree-optimization/24123

        * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
        * tree-cfg.c (single_noncomplex_succ): New.
        * tree-flow.h (single_noncomplex_succ): Declare it.
        * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
        * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
        (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
        insert_bb, register_division_in, insert_reciprocals,
        replace_reciprocal, free_bb): New.
        (execute_cse_reciprocals_1): Rewritten.
        (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
        Do not commit any edge insertion.  Always compute dominators and
        create the allocation pool.
        * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
        * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
        * targhooks.c (default_min_divistions_for_recip_mul): New.
        * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
        * passes.c (init_optimization_passes): Run recip after tree loop
        optimizations.
        * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.

2006-01-11  Danny Berlin <dberlin@dberlin.org>
            Kenneth Zadeck <zadeck@naturalbridge.com>

        * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
        DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
        DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
        DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
        DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
        DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
        DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
        DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
        DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
        DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
        DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
        DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
        DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
        DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
        DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
        DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
        DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
        DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
        DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
        DF_SCAN_POST_ALLOC): New macros.
        (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
        df_free_bb_function, df_local_compute_function, df_init_function,
        df_dataflow_function, df_confluence_function_0,
        df_confluence_function_n, df_transfer_function,
        df_finalizer_function, df_free_function, df_dump_problem_function,
        df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
        df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
        df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
        df_urec_bb_info, ) New types.
        (df_invalidated_by_call, df_all_hard_regs, df_state) New public
        variables.
        (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
        df_analyze_simple_change_some_blocks,
        df_analyze_simple_change_one_block, df_compact_blocks,
        df_bb_replace, df_bb_regno_last_use_find,
        df_bb_regno_first_def_find, df_bb_regno_last_def_find,
        df_insn_regno_def_p, df_find_def, df_find_use,
        df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
        df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
        df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
        debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
        debug_df_chain, df_get_dependent_problem, df_chain_create,
        df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
        df_grow_bb_info, df_chain_dump, df_print_bb_index,
        df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
        df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
        df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
        df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
        df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
        df_rescan_blocks, df_ref_create, df_get_artificial_defs,
        df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
        df_ref_remove, df_insn_refs_delete, df_refs_delete,
        df_reorganize_refs, df_set_state, df_hard_reg_init,
        df_read_modify_subreg_p) New public functions.
        * df-core.c: The core dataflow solver and glue routines for rtl
        dataflow.
        (df_init, df_add_problem, df_set_blocks, df_finish,
        df_hybrid_search_forward, df_hybrid_search_backward,
        df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
        df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
        df_bb_regno_last_use_find, df_bb_regno_first_def_find,
        df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
        df_reg_defined, df_find_use, df_reg_used, df_dump,
        df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
        df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
        debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
        debug_df_useno, reset_df_after_reload): New functions.
        * df-scan.c: The scanning fuctions, once in df.c, completely
        rewritten so that they now fully model the functionality of
        register usage at the backend.
        (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
        df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
        df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
        df_grow_insn_info, df_rescan_blocks, df_ref_create,
        df_get_artificial_defs, df_get_artificial_uses,
        df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
        df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
        df_refs_delete, df_reorganize_refs, df_set_state,
        df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
        df_def_record_1, df_defs_record, df_uses_record,
        df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
        df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
        df_record_exit_block_uses, df_hard_reg_init): New functions.

        * df-problems.c: Seven concrete dataflow problems that use the
        scanning in df-scan.c and are solved by the engine in df-core.c.
        (df_get_dependent_problem, df_chain_create, df_chain_unlink,
        df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
        df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
        df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
        df_ru_free_bb_info, df_ru_alloc,
        df_ru_bb_local_compute_process_def,
        df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
        df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
        df_ru_transfer_function, df_ru_free, df_ru_dump,
        df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
        df_rd_free_bb_info, df_rd_alloc,
        df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
        df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
        df_rd_transfer_function, df_rd_free, df_rd_dump,
        df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
        df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
        df_lr_local_compute, df_lr_init, df_lr_confluence_0,
        df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
        df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
        df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
        df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
        df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
        df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
        df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
        df_urec_mark_reg_change, df_urec_check_earlyclobber,
        df_urec_mark_reg_use_for_earlyclobber,
        df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
        df_urec_local_compute, df_urec_init, df_urec_local_finalize,
        df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
        df_urec_dump, df_urec_add_problem, df_chain_alloc,
        df_chain_create_bb_process_use, df_chain_create_bb,
        df_chain_finalize, df_chain_free, df_chains_dump,
        df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
        df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
        df_reg_lifetime): New functions.
        * df.c: Deleted file.
        * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
        consistent with new df api.
        * modulo-sched.c (sms_schedule, rest_of_handle_sms,
        rest_of_handle_sms): Ditto.
        * web.c (unionfind_union, union_defs, entry_register, web_main):
        Ditto.
        * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
        invariant_expr_equal_p, find_defs, check_dependencies,
        find_invariant_insn, find_invariants_to_move, move_invariant_reg,
        free_inv_motion_data, move_loop_invariants): Ditto.
        * Makefile.in (df.c, df-scan.c df-problems.c df-core.c):
        Update dependencies.
        (odf.c): Added defective entry that was deleted later in day.
        * sched-deps.c (sched_analyze_1): Ditto.

2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-operands.c (get_expr_operands): Record addressable
        variables directly.  Do not call add_stmt_operands for CONST_DECLs
        and ARRAY_DECLs.
        (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
        (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.

2006-01-11  Ben Elliston  <bje@au.ibm.com>

        * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
        function returns true in the positive case.

2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/20754
        * config/pa/pa.md: Create separate 32 and 64-bit move patterns
        for SI, DI, SF and DF modes.  Add alternatives to copy between
        general and floating point registers to the 32-bit patterns.
        * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
        * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
        (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
        generating 64-bit code.
        * config/pa/pa.c (output_move_double): Handle copies between general
        and floating registers.

2006-01-10  Stuart Hastings  <stuart@apple.com>

        * config/i386/i386.md (set_got): Update.
        (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
        (builtin_setjmp_receiver): Mach-O support.
        * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
        (GOT_SYMBOL_NAME): Define.
        (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
        (TARGET_DEEP_BRANCH_PREDICTION): Remove.
        * config/i386/i386.c (override_options): Revise for Darwin.
        (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
        support.  (darwin_x86_file_end): New.  (output_set_got): Add label
        parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
        * config/i386/i386-protos.h (output_set_got): Likewise.
        * config/darwin.c (machopic_legitimize_pic_address): Update
        regs_ever_live[].

2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
        when MODE isn't BLKmode.

2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR rtl-optimization/25367
        * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.

2006-01-10  Hans-Peter Nilsson  <hp@axis.com>

        PR target/25718
        * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
        for a negative bound.

2006-01-10  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (get_constraint_for_component_ref):
        Never override with anything constraint.

2006-01-10  Jan Beulich  <jbeulich@novell.com>

        * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
        256 bits when optimize_size.

2006-01-10  Jan Beulich  <jbeulich@novell.com>

        * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
        MASK_ALIGN_DOUBLE.
        * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
        * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
        arguments.

2006-01-10  Ben Elliston  <bje@au.ibm.com>

        * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
        float modes.
        * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
        (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
        (USE_FP_FOR_ARG): Reject decimal float modes.
        (function_arg_advance): Likewise.
        (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
        (rs6000_handle_altivec_attribute): Do not permit decimal floating
        point types in AltiVec vectors.
        (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
        (rs6000_libcall_value): Likewise.

2006-01-09  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/ieee754-df.S: New file.
        * config/xtensa/ieee754-sf.S: New file.
        * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
        (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
        * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.

2006-01-09  Kazu Hirata  <kazu@codesourcery.com>

        * config/sh/predicates.md (binary_float_operator,
        binary_logical_operator, commutative_float_operator,
        equality_comparison_operator, greater_comparison_operator,
        less_comparison_operator, logical_operator,
        noncommutative_float_operator, shift_operator,
        symbol_ref_operand, unary_float_operator): Remove redundant
        conditionals.

2006-01-09  Jeff Law  <law@redhat.com>

        * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
        code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
        now unused arguments.  Callers updated.
        (eliminate_redundant_computations): Remove now unused arguments,
        callers updated.
        (local_fold): Remove, no longer used.
        (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
        and moved to...
        * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
        (simplify_cond): New function.
        (forward_propagate_into_cond): Call simplify_cond.

2006-01-09  Alexandre Oliva  <aoliva@redhat.com>

        * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
        (*vec_extractv2di_1_sse): New.

2006-01-09  Ben Elliston  <bje@au.ibm.com>

        * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.

2006-01-08  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (get_constraint_for): Remove
        anyoffset argument.
        (get_constraint_for_component_ref): Likewise.
        (do_deref): Likewise.
        (get_constraint_for): Likewise.
        (do_structure_copy): Likewise.
        (handle_ptr_arith): Likewise.
        (find_func_aliases): Likewise.  Remove unused need_anyoffset
        variable.

2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
            Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.h (CONST_OK_FOR_K16): Define.
        (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
        (EXTRA_CONSTRAINT_C16): Remove.
        (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
        (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
        EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
        * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
        constants of SHmedia.  Handle nested constant expressions of
        SHmedia correctly.
        (andcosts): Fix the costs for SHmedia constants.
        (sh_rtx_costs): Take account of outer_code for SHmedia constants.
        * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
        (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
        (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
        (movv4hi_i, movv2si_i): Likewise.
        (movsi_const): Adjust the second operand of ior so to match with
        the Csu constraint.
        (movdi_const, movdi_const_32bit): Likewise.
        (movdi_const_16bit+1): Don't sign-extend LOW.
        (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
        step.
        (*double_shori): Fix the split condition.  Use GEN_INT instead
        of get_int_mode calls.  Mask lower 16-bit of the argument of
        the last GEN_INT.
        (sym2GOTPLT): Remove.
        (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
        gen_rtx_UNSPEC.
        * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
        instead of EXTRA_CONSTRAINT_C16.

2006-01-07  Ian Lance Taylor  <ian@airs.com>
            David Edelsohn  <edelsohn@gnu.org>

        PR rtl-optimization/25662
        * optabs.c (simplify_expand_binop): Use simplify_binary_operation
        for constant operands instead of simplify_gen_binary.
        * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
        after trying simplify_binary_operation

2006-01-06  Daniel Berlin  <dberlin@dberlin.org>

        * tree.c (iterative_hash_expr): Hash decls based on UID.

2006-01-06  Eric Christopher  <echristo@apple.com>

        * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
        (TARGET_UNWIND_EMIT): Fix spelling.
        * target.h (gcc_target): Add except_table_label.
        * except.c (output_function_exception_table): Use.
        * varasm.c (default_emit_except_table_label): New.
        * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
        define.
        (asm_out): Add here.
        * output.h (default_emit_except_table_label): Prototype.
        * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
        * config/darwin.c (darwin_emit_except_table_label): Define.
        * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.

2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/18527
        * tree-ssa-loop-niter.c (number_of_iterations_cond,
        number_of_iterations_special, number_of_iterations_exit):
        Move base and step of an iv to a single structure.  Add
        no_overflow flag, and use it in # of iterations analysis.
        * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
        folded_casts argument.
        (simple_iv): Pass base and step in a structure.  Set no_overflow
        flag.
        (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
        Evaluate expensiveness of computing # of iterations instead of
        the final expression.
        * tree-scalar-evolution.h (affine_iv): New structure.
        (simple_iv): Declaration changed.
        * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
        * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
        find_givs_in_stmt): Changed due to simple_iv change.

2006-01-06  Jeff Law  <law@redhat.com>

        PR ada/24994
        * tree-cfg.c (bsi_replace): Rename final argument from
        PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
        change (stmt -> orig_stmt).
        * tree-eh.c (verify_eh_throw_stmt_node): New function.
        (bsi_remove): Add new argument.  Remove EH information
        if requested.
        (verify_eh_throw_table_statements): New function.
        (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
        updated.
        * tree-optimize.c (execute_free_cfg_annotations): Verify
        the EH throw statement table after removing annotations.
        * except.h (verify_eh_throw_table_statements): Prototype.
        * tree-flow.h (bsi_remove): Update prototype.
        * tree-vrp.c (remove_range_assertions): Add new argument to
        bsi_remove call.
        * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
        * tree-complex.c (expand_complex_div_wide): Likewise.
        * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
        * tree-tailcall.c (eliminate_tailcall): Likewise.
        * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
        * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
        * tree-nrv.c (tree_nrv): Likewise.
        * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
        * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
        (combine_blocks): Likewise.
        * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
        * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
        (cleanup_control_flow): Likewise.
        (remove_forwarder_block): Likewise.
        * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
        * tree-sra.c (sra_replace): Likewise.
        * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
        (forward_propagate_single_use_vars): Likewise.
        * tree-ssa-dce.c (remove_dead_stmt): Likewise.
        * tree-inline.c (expand_call_inline): Likewise.
        * tree-vect-transform.c (vect_transform_loop): Likewise.
        * tree-outof-ssa.c (rewrite_trees): Likewise.
        * tree-cfg.c (make_goto_expr_edges): Likewise.
        (cleanup_dead_labels): Likewise.
        (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
        (bsi_move_before, bsi_move_after): Likewise.
        (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
        (tree_redirect_edge_and_branch, tree_split_block): Likewise.

2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/25528
        * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
        and IMAGPART_EXPR.
        * tree-flow-inline.h (var_can_have_subvars): Handle complex types
        on non gimple variables.  Also add checks at the top for decls and
        mtags.
        * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
        complex types.
        * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
        and IMAGPART_EXPR for creating MUST_DEFs.
        (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
        and NAME_MEMORY_TAG separately from the DECLs.

2006-01-06  Richard Guenther  <rguenther@suse.de>

        * tree-dfa.c (mark_new_vars_to_rename): Create stmt
        annotation, if necessary.
        * tree-ssa-pre.c (create_expression_by_pieces): Remove
        redundant calls to update_stmt.
        * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
        Likewise.

2006-01-05  Richard Henderson  <rth@redhat.com>

        * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.

2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>

        * c-typeck.c: Update copyright date.

2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>

        * c-typeck.c (build_c_cast): Always warn when casting
        from a pointer to an integer of different size, even if
        the node was constant.

2006-01-05  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/22555
        * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
        if one structure field is an array.
        * tree-ssa-operands.c (get_expr_operands): Continue scanning
        operands even if we found a subvar, but ignore VOPs in this
        case.
        * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
        for renaming.
        * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.

2006-01-05  Richard Earnshaw  <rearnsha@arm.com>

        PR middle-end/24998
        * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.

2006-01-05  Richard Guenther  <rguenther@suse.de>
            Diego Novillo  <dnovillo@redhat.com>

        * tree-pass.h (TODO_remove_unused_locals): Define.
        * gimple-low.c (expand_var_p, remove_useless_vars,
        pass_remove_useless_vars): Remove.  Update all users.
        * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
        (remove_unused_locals): New function.
        * tree-flow.h (remove_unused_locals): Declare.
        * passes.c (execute_todo): Call remove_unused_locals if
        TODO_remove_unused_locals is set.
        * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
        * tree-ssa-dce.c (pass_dce): Likewise.
        * tree-outof-ssa.c (pass_del_ssa): Likewise.

2006-01-05  Richard Guenther  <rguenther@suse.de>

        * tree-flow.h (struct fieldoff): Decompose field to
        type, size and decl.
        * tree-ssa-alias.c (create_sft): Take type as parameter.
        (create_overlap_variables_for): Store type, size and decl
        in the fieldoff structure.
        * tree-ssa-structalias.c (fieldoff_compare): Adjust users
        of struct fieldoff.
        (push_fields_onto_fieldstack): Likewise.
        (create_variable_info_for): Likewise.  Use offset for the
        SFT name if the decl is not available.

2006-01-04  Paul Brook  <paul@codesourcery.com>

        * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.

2006-01-04  Daniel Berlin  <dberlin@dberlin.org>

        * lambda-code.c (can_put_in_inner_loop): Relax
        restrictions.
        (can_put_after_inner_loop): New function.
        (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
        (perfect_nestify): Change to make copies and modify uses.

2006-01-04  Richard Henderson  <rth@redhat.com>

        Merge from gomp branch:
        * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
        via integer constant.
        (pragma_lex): Remove.
        * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
        rather than parsing it.
        * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
        handle_pragma_extern_prefix): Add %< %> quotes.
        (registered_pragmas): New.
        (c_register_pragma_1): New.
        (c_register_pragma): Use it.
        (c_register_pragma_with_expansion): Likewise.
        (c_invoke_pragma_handler): New.
        (init_pragma): Use cpp_register_deferred_pragma directly for
        pch_preprocess.
        * c-pragma.h (enum pragma_kind): New.
        (pragma_handler): New.
        (c_invoke_pragma_handler): Declare.
        * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
        CPP_PRAGMA_EOL.
        * c-common.h (c_common_pch_pragma): Update decl.
        * Makefile.in (c-parser.o): Update dependencies.
        (GTFILES): Add c-pragma.h.
        * c-parser.c (struct c_token): Add pragma_kind.
        (struct c_parser): Add in_pragma.
        (c_lex_one_token): Always initialize keyword and pragma_kind.
        Extract data for CPP_PRAGMA.
        (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
        (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
        Don't allow CPP_PRAGMA_EOL if in_pragma.
        (c_parser_consume_pragma): New.
        (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
        (c_parser_skip_to_end_of_parameter): Likewise.
        (c_parser_skip_to_end_of_block_or_statement): Likewise.
        (c_parser_skip_to_pragma_eol): New.
        (c_parser_external_declaration): Handle CPP_PRAGMA.
        (c_parser_compound_statement_nostart): Likewise.
        (c_parser_statement_after_labels): Likewise.
        (c_parser_pragma): New.
        (pragma_lex): Likewise.
        (c_parser_pragma_pch_preprocess): New.
        (c_parser_new): Merge into ...
        (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.

2006-01-04  Jeff Law  <law@redhat.com>

        PR ada/24994
        * tree-cfg.c (bsi_replace): Remove the original statement
        from the EH throw statement table.

2006-01-04  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
        make the prototype extern "C" and add throw ().

        PR target/25554
        * config/i386/i386.md (testqi_ext_3): Ensure len is positive
        and pos non-negative and pos + len <= 32.
        (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
        drop pos + len < HOST_BITS_PER_WIDE_INT test.
        (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.

        PR c/25559
        * c-common.c (handle_vector_size_attribute): Reject zero vector size
        as well as sizes not multiple of component size.

        PR debug/25562
        * function.c (instantiate_expr): New function.
        (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
        walk its DECL_VALUE_EXPR with instantiate_expr.

        * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
        DW_OP_deref{,_size} if address isn't going to be added.

2006-01-04  Ben Elliston  <bje@au.ibm.com>

        * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
        * config/fp-bit.c: Likewise.

2006-01-03  Daniel Berlin  <dberlin@dberlin.org>

        * dominance.c: Add comment about why we use DFS numbering
        of dominance tree.

2006-01-03  Jakub Jelinek  <jakub@redhat.com>
            Richard Henderson  <rth@redhat.com>

        Merge from gomp-branch:
        * varasm.c (assemble_variable): Handle thread-local COMMON data.
        * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.

2006-01-03  Paolo Bonzini  <bonzini@gnu.org>

        PR rtl-optimization/25578
        * combine.c (combine_simplify_rtx, force_to_mode): Don't
        pass a parameter to simplify_shift_const if changing ASHIFTRT
        to LSHIFTRT.

2006-01-03  Adrian Straetling  <straetling@de.ibm.com>

        * builtins.c (get_builtin_sync_mem): New function.
        (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
        expand_builtin_lock_test_and_set, expand_builtin_lock_release):
        Call get_builtin_sync_mem to generate mem rtx.

2006-01-03  Richard Guenther  <rguenther@suse.de>

        PR c/25183
        * stmt.c (add_case_node): Make sure to clear overflow flags
        from ranges.

2006-01-03  Jakub Jelinek  <jakub@redhat.com>

        Merge from gomp-branch.
        * config/sparc/sync.md: New file.
        * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
        UNSPECV_LDSTUB): New constants.
        * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
        * config/sparc/predicates.md (memory_reg_operand): New predicate.
        * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
        prototype.

2006-01-03  Roger Sayle  <roger@eyesopen.com>

        * combine.c (reg_subword_p): New predicate to test whether the
        destination of a set refers to a subword/piece of a register.
        (try_combine): Generalize the code to merge the setting of a
        pseudo to a constant followed by a set of a subword of that
        register to a constant.

2006-01-03  Kazu Hirata  <kazu@codesourcery.com>

        * basic-block.h (control_flow_graph): Change the type of
        x_label_to_block_map to VEC(basic_block,gc) *.
        * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
        set_bb_for_stmt): Adjust the uses of x_label_to_block_map.

        * tree-ssa-propagate.c (cfg_blocks): Change the type to
        VEC(basic_block,heap) *.
        (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
        ssa_prop_fini): Adjust the uses of cfg_blocks.

2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>

        * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
        COMPONENT_REFs.
        * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
        hashing trees instead of a pointer hash.
        (mem_attrs_htab_eq): Do a deep compare instead of a pointer
        compare for MEM_EXPR.

        PR rtl-optimization/25130
        * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
        when comparing MEMs for GCSE

2006-01-03  Ben Elliston  <bje@au.ibm.com>

        * targhooks.h (default_decimal_float_supported_p): Declare.
        * targhooks.c (default_decimal_float_supported_p): Define.
        * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
        `default_decimal_float_supported_p'.
        * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.

2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (apply_distributive_law <SUBREG>): Check
        TRULY_NOOP_TRUNCATION.

2006-01-02  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (have_switched_text_section): Delete.
        (have_multiple_function_sections): New.
        (have_location_lists): Make 'bool'.
        (add_AT_loc_list): Use 'true' not '1'.
        (dwarf2out_switch_text_section): Set have_multiple_function_sections.
        (output_loc_list): Use have_multiple_function_sections.
        (output_ranges): Likewise.
        (dwarf2out_begin_function): Set have_multiple_function_sections if
        necessary.
        (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
        Check function_section rather than DECL_SECTION_NAME.
        (dwarf2out_finish): Use have_multiple_function_sections.
        Don't clear have_location_lists.

2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
            Jan Hubicka  <jh@suse.cz>

        * cfglayout.c (fixup_reorder_chain): Remove kludge for the
        case of conditional jump jumping to the next instruction.
        * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
        cases of conditional jump jumping to the next instruction.

2006-01-02  Jan Hubicka  <jh@suse.cz>

        * i386.c (*_cost): Add COSTS_N_INSNS.
        (ix86_rtx_costs): Do not use COSTS_N_INSNS.

2006-01-02  Paolo Bonzini  <bonzini@gnu.org>

        PR target/25259
        * Makefile.in (DECNUMINC): Include libdecnumber's build directory.

2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        * config/arm/arm.c (all_fpus): Fix comment typo.
        * config/darwin.c: Likewise.
        * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
        * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
        * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.

2006-01-01  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
        (rs6000_split_compare_and_swapqhi): New.
        * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
        (sync_compare_and_swapqhi_internal): New.
        * config/rs6000/rs6000-protos.h: Declare.