2008-04-02 Vladimir Makarov <vmakarov@redhat.com>

[official-gcc.git] / gcc / ChangeLog

2008-04-02  Vladimir Makarov  <vmakarov@redhat.com>

        * ira-color.c (start_allocno_priorities): Permit zero allocno
        nref.

2008-03-31  Vladimir Makarov  <vmakarov@redhat.com>

        * ira-color.c (push_allocnos_to_stack): Don't use double.  Use
        const as the secondary heuristic.

        * ira-emit.c (set_allocno_reg): Change cap reg too.  Process all
        loop parents.
        
        * doc/invoke.texi (-fira-coalescing): Change to -fira-coalesce.

        * toplev.h (flag_lower_subreg): Remove.

        * global.c (build_insn_chain): Remove the prototype.

        * alias.c (value_addr_p): Change comment.

        * emit-rtl.c (gen_lowpart_common): Remove CONCATN.

        * simplify-rtx.c (simplify_subreg): Ditto.

        * common.opt (flower-subreg): Remove.

        * config/rs6000/rs6000.c (rs6000_elf_in_small_data_p): Fix last
        merge.

2008-03-29  Vladimir Makarov  <vmakarov@redhat.com>

        * ira-lives (process_single_reg_class_operands): Fix typo in
        setting up cover_class.

2008-03-28  Vladimir Makarov  <vmakarov@redhat.com>

        * ira-conflicts.c, global.c, regmove.c, function.c,
        ira-emit.c, alias.c, reload1.c: Add comments, fix comments.

        * reload.h: Add 2008 to the Copyright.
        
        * caller-save.c: Add comments.
        (reg_save_code, reg_restore_code, initiate_saved_hard_regs,
        new_saved_hard_reg, finish_saved_hard_regs,
        saved_hard_reg_compare_func, calculate_local_save_info,
        set_up_bb_rts_numbers, rpost_cmp, calculate_save_in_out,
        calculate_save_here, make_global_save_analysis,
        print_hard_reg_set_and_mode, print_hard_reg_set, print_save_data,
        set_hard_reg_saved, add_stored_regs): Add prototypes.
        
        * df-scan.c (df_get_call_refs): Use
        get_call_invalidated_used_regs.

        * ira-int.h: Add comments.
        (loop_tree_node): Rename inner to children.
        (ira_allocate_regset, ira_free_regset): Remove.
        (reassign_conflict_allocnos): Remove one parameter.

        * ira-color.c: Add comments.
        (setup_curr_costs): Rename to update_curr_costs.
        (allocno_cost_compare_func, print_coalesced_allocno,
        allocno_reload_assign): Add prototypes.
        (reassign_conflict_allocnos): Remove one parameter.

        * ira-lives.c: Add comments.
        (make_regno_dead, make_regno_born_and_dead,
        create_start_finish_chains, print_allocno_live_ranges,
        print_live_ranges): Add protoypes.

        * ira-build.c: Add comments.
        (copy_allocno_live_range_list): Make it static.

        * ira.c: Add comments.
        (setup_cover_classes): Rename to
        setup_cover_and_important_classes.
        (free_register_move_costs, chain_freq_compare, chain_bb_compare,
        ira): New prototypes.
        (mode_inner_mode, setup_inner_mode, ira_allocate_regset,
        ira_free_regset): Remove.

        * ira.h: Add comments.
        (SECONDARY_INPUT_RELOAD_CLASS,
        SECONDARY_OUTPUT_RELOAD_CLASS, HAVE_SECONDARY_RELOADS,
        MEMORY_MOVE_COST, reg_equiv_memory_loc_varray, reg_equiv_constant,
        reg_equiv_memory_loc, reg_equiv_address, reg_equiv_mem, ira):
        Remove.
        
        * ira-costs.c: Add comments.
        (find_allocno_class_costs): Make common class a cover class.
        
2008-03-20  Vladimir Makarov  <vmakarov@redhat.com>

        * ira-int.h (allocno): Rename conflict_allocno_vec and
        conflict_allocno_vec_size into conflict_allocno_array and
        conflict_allocno_array_size.  Remove conflict_allocnos_num.
        Rename total_conflict_allocnos_num into conflict_allocnos_num New
        members child_renamed_p and conflict_vec_p.
        (ALLOCNO_CONFLICT_ALLOCNO_VEC): Rename to
        ALLOCNO_CONFLICT_ALLOCNO_ARRAY.
        (ALLOCNO_CONFLICT_ALLOCNO_VEC_SIZE): Rename to
        ALLOCNO_CONFLICT_ALLOCNO_ARRAY_SIZE.
        (ALLOCNO_CHILD_RENAMED_P, ALLOCNO_CONFLICT_VEC_P): New macros.
        (EXECUTE_IF_SET_IN_ALLOCNO_SET): Change to
        FOR_EACH_ALLOCNO_IN_SET.
        (allocno_set_iterator): New typedef.
        (allocno_set_iter_init, allocno_set_iter_cond,
        allocno_set_iter_next): New functions.
        (conflict_vector_profitable_p, allocate_allocno_conflict_vec): New
        prototypes.
        (allocno_iterator): New typedef.
        (allocno_iter_init, allocno_iter_cond): New functions.
        (FOR_EACH_ALLOCNO): New macro.
        (copy_iterator): New typedef.
        (copy_iter_init, copy_iter_cond): New functions.
        (FOR_EACH_COPY): New macro.
        (allocno_conflict_iterator): New typedef.
        (allocno_conflict_iter_init, allocno_conflict_iter_cond,
        allocno_conflict_iter_next): New functions.
        (conflict_vector_profitable_p, allocate_allocno_conflict_vec): New
        prototypes.
        (FOR_EACH_ALLOCNO_CONFLICT): New macro.

        * ira-conflicts.c (conflicts): Change type.
        (CONFLICT_P): Use one more index for conflicts.
        (build_conflict_bit_table): Change allocation and initialization
        of conflicts.
        (mirror_conflicts): Rewrite.
        (remove_conflict_allocno_copies): Use FOR_EACH_ALLOCNO.
        (build_allocno_conflict_vects): Rename to build_allocno_conflicts.
        Rewrite it.
        (print_conflicts): Use FOR_EACH_ALLOCNO, don't print star.
        (ira_build_conflicts): Use FOR_EACH_ALLOCNO.

        * ira-color.c (assign_hard_reg): Use FOR_EACH_ALLOCNO_CONFLICT.
        Use min_full_cost for finding register profitability.
        (push_allocno_to_stack): Use FOR_EACH_ALLOCNO_CONFLICT.
        (setup_allocno_left_conflicts_num, coalesced_allocno_conflict_p):
        Ditto.
        (move_spill_restore): Use FOR_EACH_ALLOCNO.
        (reassign_conflict_allocnos): Ditto.  Use
        FOR_EACH_ALLOCNO_CONFLICT.
        (sort_regnos_for_alter_reg): Use FOR_EACH_ALLOCNO.
        (reassign_pseudos): Use FOR_EACH_ALLOCNO_CONFLICT.

        * ira-lives.c (make_regno_born, clear_allocno_live,
        mark_reg_death, process_single_reg_class_operands,
        process_bb_node_lives): Use FOR_EACH_ALLOCNO_IN_SET.
        (create_start_finish_chains, print_live_ranges): Use
        FOR_EACH_ALLOCNO.

        * ira-emit.c (set_allocno_reg): Set up ALLOCNO_CHILD_RENAMED_P.
        (set_allocno_somewhere_renamed_p): Use
        ALLOCNO_CONFLICT_ALLOCNO_ARRAY.
        (ira_emit): Use FOR_EACH_ALLOCNO.

        * ira.c (setup_reg_renumber, setup_allocno_assignment_flags,
        calculate_allocation_cost, check_allocation,
        print_redundant_copies, setup_preferred_alternate_classes): Use
        FOR_EACH_ALLOCNO.

        * ira-costs.c (print_costs, setup_allocno_cover_class_and_costs,
        ira_costs, tune_allocno_costs_and_cover_classes): Use
        FOR_EACH_ALLOCNO.

        * ira-build.c (check_allocno_conflict_vec): Remove.
        (add_to_allocno_conflict_vec): Rename to
        allocate_allocno_conflicts.  Rewrite.
        (allocate_allocno_conflict_bit_vec, allocate_allocno_conflicts,
        remove_wrong_conflicts, change_allocno_conflicts): New functions.
        (rebuild_regno_allocno_maps): Use FOR_EACH_ALLOCNO.
        (create_allocno): Initialize ALLOCNO_CHILD_RENAMED_P and
        ALLOCNO_CONFLICT_VEC_P.
        (conflict_vector_profitable_p): New function.
        (compress_allocno_conflict_vec): Use
        ALLOCNO_CONFLICT_ALLOCNO_ARRAY and don't use
        ALLOCNO_TOTAL_CONFLICT_ALLOCNOS_NUM.
        (compress_conflict_vecs): Use FOR_EACH_ALLOCNO.  Check
        ALLOCNO_CONFLICT_VEC_P.
        (propagate_info_to_cap): Use FOR_EACH_ALLOCNO_CONFLICT.
        (finish_allocnos): Use FOR_EACH_ALLOCNO.
        (finish_copies): Use FOR_EACH_COPY.
        (check_and_add_conflicts): Change second parameter.  Use
        add_to_allocno_conflicts instead of add_to_allocno_conflict_vec.
        (temp_change_bit_vec): New variable.
        (ira_flattening): Use FOR_EACH_ALLOCNO and FOR_EACH_COPY.  Use
        remove_wrong_conflicts, change_allocno_conflicts.  Allocate and
        free temp_change_bit_vec.  Nullify `allocnos' elements for removed
        allocnos.  Check ALLOCNO_CHILD_RENAMED_P for removing obsolete
        conflicts.  Don't compress and enumerate allocnos and copies.
        Nullify `copies' elements for removed copies.  Use
        add_to_allocno_conflicts instead of add_to_allocno_conflict_vec.
        (ira_build): Use FOR_EACH_ALLOCNO.
        
2008-03-18  Vladimir Makarov  <vmakarov@redhat.com>

        * common.opt (fira-algorithm): Fix description

        * ira-int.h (allocno): Remove best_class.
        (ALLOCNO_BEST_CLASS): Remove.
        (strict_class_subset_p): Remove.
        
        * ira-color.c (get_coalesced_allocnos_best_class_and_freq): Rename
        to get_coalesced_allocnos_attributes.  Change prototype.
        Calculate available regs.
        (bucket_allocno_compare_func, sort_bucket): New functions.
        (sorted_allocnos_for_spilling): New variable.
        (assign_hard_reg): Don't add prohibited_class_mode_regs to
        conflicting_regs.  Use it in loop for finding the best hard
        register.
        (add_allocno_to_ordered_bucket): Use bucket_allocno_compare_func.
        (push_only_colorable): Call sort_bucket.
        (push_allocnos_to_stack): Use sorted_allocnos_for_spilling instead
        of sorted_allocnos.
        (put_allocno_into_bucket): Use add_allocno_to_bucket instead of
        add_allocno_to_ordered_bucket.
        (initiate_ira_assign): Allocate sorted_allocnos_for_spilling.
        (finish_ira_assign): Free sorted_allocnos_for_spilling.

        * ira-emit.c (modify_move_list): Remove setting ALLOCNO_BEST_CLASS
        up.
        
        * ira-build.c (create_allocno, create_cap_allocno): Ditto.
        
        * ira.c (strict_class_subset_p): Remove.
        (setup_class_subset_and_memory_move_costs): Remove setting
        strict_class_subset_p up.
        
        * ira-costs.c (setup_allocno_cover_class_and_costs): Remove
        setting ALLOCNO_BEST_CLASS up.
        
2008-03-12  Vladimir Makarov  <vmakarov@redhat.com>

        * ira-int.h (allocno_pool, copy_pool, allocno_live_range_pool):
        Remove external definitions.
        (free_allocno_updated_costs, allocate_cost_vector,
        free_cost_vector): New prototypes.
        (allocate_and_set_costs, allocate_and_copy_costs,
        allocate_and_set_or_copy_costs): Change prototypes.  Use
        allocate_cost_vector instead of ira_allocate.

        * ira-conflicts.c (add_insn_allocno_copies): Pass register class
        to allocate_and_set_costs.

        * ira-color.c (update_copy_costs_1): Pass register class to
        allocate_and_set_or_copy_costs.
        (assign_hard_reg): Pass register class to allocate_and_copy_costs.
        Free updated costs.
        (pop_allocnos_from_stack, color_allocnos): Check updated costs.
        (color_pass): Pass register class to allocate_and_set_costs.  Free
        updated costs.
        (move_spill_restore): Check reg equivalences.
        (setup_curr_costs): Pass register class to
        allocate_and_set_or_copy_costs.
        (reassign_conflict_allocnos, allocno_reload_assign): Check updated
        costs.
        (calculate_spill_cost): Use REG_N_REFS after checking regno.

        * ira-lives.c (process_single_reg_class_operands): Pass register
        class to allocate_and_set_costs.

        * ira-build.c (allocno_pool, allocno_live_range_pool): New
        variables.
        (initiate_allocnos): Initiate the pools.
        (free_allocno_updated_costs): New function.
        (finish_allocno): Use free_cost_vector.  Free the pools.
        (copy_pool): New variable.
        (initiate_copies): Initiate the pool.
        (cost_vector_pool): New variable.
        (initiate_cost_vectors, allocate_cost_vector, free_cost_vector,
        finish_cost_vectors): New functions.
        (ira_flattening): Call free_allocno_updated_costs.  Check updated
        costs.
        (ira_build): Call initiate_cost_vectors.
        (ira_destroy): Call finish_cost_vectors.

        * ira.c (find_reg_equiv_invariant_const): Check read only memory.
        (setup_reg_renumber, setup_allocno_assignment_flags): Call
        free_allocno_updated_costs.
        (ira): Remove initializations and freeing allocno_pool, copy_pool,
        and allocno_live_range_pool.  Call generate_setjmp_warnings.

        * ira-costs.c (process_bb_node_for_hard_reg_moves,
        tune_allocno_costs_and_cover_classes): Pass register class to
        allocate_and_set_costs.

        * caller-save.c (save_slots_num, save_slots): New variables.
        (init_save_areas): Initiate save_slots_num.
        (setup_save_areas): Use stack slots from the previous reload
        iteration independetly what slot was used on the previous pass.
        
2008-03-10  Vladimir Makarov  <vmakarov@redhat.com>

        * config/i386/sse.md (ssse3_pmaddubswv8hi3, ssse3_pmaddubswv4hi3):
        Remove commutativity hint.

2008-03-06  Vladimir Makarov  <vmakarov@redhat.com>

        * ira.h (sort_regnos_for_alter_reg): Add parameter.
        
        * reload1.c (reload): Pass additional argument to
        sort_regnos_for_alter_reg.

        * ira-int.h (reg_equiv_len): New global variable.

        * ira-emit.c (change_loop): Add assertion.

        * ira.c (reg_equiv_len): New global variable.
        (setup_reg_renumber): Use reg_equiv_len in assertion.
        (ira): Initialize reg_equiv_len and spilled_reg_stack_slots.

        * ira-color.c (coalesced_pseudo_reg_compare): Rename to
        coalesced_pseudo_reg_freq_compare.
        (coalesced_pseudo_reg_slot_compare,
        setup_coalesced_allocno_costs_and_nums,
        collect_spilled_coalesced_allocnos, coalesce_spill_slots): New
        functions.
        (coalesced_allocno_conflict_p): Add new parameter.  Use live
        ranges to find conflicts for the reload.
        (coalesce_allocnos): Don't coalesce allocnos with equivalences.
        (color_pass): Check reg_quiv_len.
        (regno_max_ref_width): New variable.
        (sort_regnos_for_alter_reg): Add secondary coalescing spilled
        allocnos.  Assign stack slot numbers.  Use costs instead of
        frequencies.
        (mark_allocation_change): Set up allocno hard regno.
        (allocno_reload_assign): Ditto.
        (reuse_stack_slot): Use stack slot numbers.
        (mark_new_stack_slot): Set up allocno slot number.

        * doc/passes.texi: Add more info about IRA.
        
2008-03-03  Vladimir Makarov  <vmakarov@redhat.com>

        * ira-conflicts.c (allocno_conflict_p): Rename to
        allocno_live_ranges_intersect_p.
        (allocno_reg_conflict_p): Rename to
        pseudo_live_ranges_intersect_p.

        * ira-lives.c (high_pressure_start_point): New variable.
        (update_allocno_pressure_excess_length): New function.
        (make_regno_dead): Call it.
        (set_allocno_live): Udpate high_pressure_start_point.
        (clear_allocno_live, mark_reg_store, mark_reg_death): Ditto.
        (process_bb_node_lives): Initialize high_pressure_start_point.
        Consider only allocatable hard regs for liveness.
        
        * ira-costs.c (record_reg_classes): Multiply cost by frequency.
        Use half frequency when memory is allowed.  Remove check for
        prefferred small register classes of pseudo-registers.
        (scan_one_insn): Continue processing operands for moves of
        pseudo-registers with equivalence.  Don't multiply cost by
        frequency.
        (init_ira_costs): Use bigger initial cost value.
        
        * ira-int.h: Ditto.
        (allocno): New members somewhere_renamed_p and
        excess_pressure_points_num.
        (ALLOCNO_SOMEWHERE_RENAMED_P, ALLOCNO_EXCESS_PRESSURE_POINTS_NUM):
        New macros.
        (allocno_reg_conflict_p): Rename to
        pseudo_live_ranges_intersect_p.
        (allocno_conflict_p): Rename to allocno_live_ranges_intersect_p.

        * ira.h (sort_regnos_for_alter_reg, better_spill_reload_regno_p):
        New function prototypes.
        
        * ira-color.c (merge_allocnos): Remove mode check.
        (coalesce_allocnos): Add parameter and modify to use it for
        coalescing spilled allocnos.
        (color_allocnos): Pass parameter to coalesce_allocnos.
        (regno_coalesced_allocno_freq, regno_coalesced_allocno_num): New
        variables.
        (coalesced_pseudo_reg_compare, calculate_spill_cost,
        sort_regnos_for_alter_reg, better_spill_reload_regno_p): New
        functions.
        (mark_allocation_change, allocno_reload_assign, reassign_pseudos
        ): Use ALLOCNO_MEMORY_COST instead of ALLOCNO_UPDATED_MEMORY_COST.
        (reuse_stack_slot): Use pseudo_live_ranges_intersect_p instead of
        allocno_reg_conflict_p.
        
        * ira-emit.c (set_allocno_somewhere_renamed_p): New function.
        (renamed_regno_bitmap): New static variable.
        (change_loop): Check register pressure for creating new pseudo.
        Set up ALLOCNO_SOMEWHERE_RENAMED_P and renamed_regno_bitmap.
        (ira_emit): Allocate/deallocate renamed_regno_bitmap.
        Call set_allocno_somewhere_renamed_p.

        * ira-build.c (ira_loops): Move to ira.c.
        (create_allocno): Initialize ALLOCNO_SOMEWHERE_RENAMED_P and
        ALLOCNO_MEMORY_COST.
        (create_cap_allocno): Set up ALLOCNO_MEMORY_COST.
        (check_and_add_conflicts): Use allocno_live_ranges_intersect_p
        instead of allocno_conflict_p.
        (ira_flattening): Check conflicts of allocno renamed somewhere
        locally.  Update ALLOCNO_EXCESS_PRESSURE_POINTS_NUM.
        (ira_build): Move code for finding loops to ira.c.
        (ira_destroy): Move code for freeing loops to ira.c.

        * ira.c (setup_reg_class_intersect_union): Fix calculation of
        reg_class_union.
        (calculate_allocation_cost): Use ALLOCNO_MEMORY_COST instead of
        ALLOCNO_UPDATED_MEMORY_COST.
        (ira_loops): Move from ira-build.c.
        (ira): Move code for finding and freeing loops from ira-build.c.
        Don't use regional RA when there are too many loops.

        * reload1.c (pseudo_reg_compare): Remove.
        (reload): Use sort_regnos_for_alter_reg.
        (hard_regno_to_pseudo_regno): New variable.
        (count_pseudo): Set up hard_regno_to_pseudo_regno.
        (order_regs_for_reload): Initialize hard_regno_to_pseudo_regno.
        (count_spilled_pseudo): Update hard_regno_to_pseudo_regno.
        (find_reg): Use better_spill_reload_regno_p.  Check
        hard_regno_to_pseudo_regno.

        * cfgloopanal.c: Include params.h.
        (estimate_reg_pressure_cost): Check number of loops.

        * params.def (PARAM_IRA_MAX_LOOPS_NUM): New parameter.

        * params.h (IRA_MAX_LOOPS_NUM): New macro.

        * Makefile.in (cfgloopanal.o): Add PARAMS_H.
        
        * doc/invoke.texi (ira-max-loops-num): Describe.
        
2008-02-20  Vladimir Makarov  <vmakarov@redhat.com>

        * ira.h, ira-emit.c: Add year 2008 to the copyright.
        
        * ira-int.h: Ditto.
        (struct copy): Rename move_insn to insn.
        (initiate_ira_assign, finish_ira_assign, debug_allocno_copies):
        New function prototypes.
        
        * ira-build.c: Add year 2008 to the copyright.  Rename member
        move_insn of the copies to insn.
        (find_allocno_copy): New function.
        (propagate_info_to_cap, add_allocno_copy): Use it.
        (print_allocno_copies, debug_allocno_copies): New functions.
        
        * ira-conflicts.c: Add year 2008 to the copyright.  Rename member
        move_insn of the copies to insn.

        * ira.c: Ditto.
        (setup_reg_class_intersect_union): Fix reg_class_union for cover
        classes.
        (ira): Call initiate_ira_assign and finish_ira_assign.  Remove
        setting reload_completed up.
        
        * ira-costs.c: Add year 2008 to the copyright.
        (ira_costs): Check modes of registers.

        * ira-lives.c: Add year 2008 to the copyright.
        (mark_reg_store, mark_reg_death, process_bb_node_lives): Don't use
        REG_N_REFS.
        (process_single_reg_class_operands): Check that the hard reg
        belongs to the cover class.

        * ira-color.c: Add year 2008 to the copyright.  Rename member
        move_insn of the copies to insn.
        (initiate_cost_update, finish_cost_update, update_copy_costs_1):
        New functions.
        (allocno_update_cost_check, update_cost_check): New static
        variables.
        (update_copy_costs): Increment update_cost_check.  Call
        update_copy_costs_1.
        (coalesce_allocnos): Don't coalesce already assigned allocnos or
        copies with null insn.
        (color_pass): Check loop tree node of the subloop allocno.
        (finish_allocno_priorities): Remove.
        (do_coloring): Move allocation/deallocation of
        consideration_allocno_bitmap into initiate_cost_update and
        finish_cost_update.
        (reassign_conflict_allocnos): Remove allocation/deallocation of
        sorted_allocnos.  Remove call of finish_allocno_priorities.
        (reassign_pseudos): Remove allocation/deallocation of
        consideration_allocno_bitmap and sorted_allocnos.  Remove call of
        finish_allocno_priorities.
        (initiate_ira_assign, finish_ira_assign): New fucntions.
        (ira_color): Remove allocation/deallocation of sorted_allocnos.
        Call initiate_ira_assign and finish_ira_assign.
        
        * postreload.c (gate_handle_postreload): Don't do post reload
        optimizations unless the reload is completed.
        
        * cfgloopanal.c (estimate_reg_pressure_cost): Return zero if we
        use regional RA.

        * recog.c (peep2_free_reg_search_ofs): New static variable.
        (peep2_find_free_register): Remove search_ofs.  Use
        peep2_free_reg_search_ofs instead of it.
        (peephole2_optimize): Reset peep2_free_reg_search_ofs.
        
2008-01-10  Vladimir Makarov  <vmakarov@redhat.com>

        * reload1.c (compute_use_by_pseudos): Permits spilled registers in
        FROM.
        (temp_pseudo_reg_arr): New variable.
        (reload): Use instead temp_pseudo_reg_arr of pseudo_regs.  Move
        freeing to the function end.  Don't clear spilled_pseudos for IRA.
        Restore original insn chain for IRA.
        (calculate_needs_all_insns): Call IRA's mark_memory_move_deletion.
        (count_pseudo, count_spilled_pseudo): Check spilled pseudos.
        (alter_reg): Set up spilled_pseudos.
        (finish_spills): Set up pseudo_previous_regs only for spilled
        pseudos.  Call reassign_pseudos once for all spilled pseudos,
        pass more arguments.  Don't clear live_throughout and dead_or_set
        for spilled pseudos.

2008-01-10  Vladimir Makarov  <vmakarov@redhat.com>

        * reload1.c (compute_use_by_pseudos): Permits spilled registers in
        FROM.
        (temp_pseudo_reg_arr): New variable.
        (reload): Use instead temp_pseudo_reg_arr of pseudo_regs.  Move
        freeing to the function end.  Don't clear spilled_pseudos for IRA.
        Restore original insn chain for IRA.
        (calculate_needs_all_insns): Call IRA's mark_memory_move_deletion.
        (count_pseudo, count_spilled_pseudo): Check spilled pseudos.
        (alter_reg): Set up spilled_pseudos.
        (finish_spills): Set up pseudo_previous_regs only for spilled
        pseudos.  Call reassign_pseudos once for all spilled pseudos,
        pass more arguments.  Don't clear live_throughout and dead_or_set
        for spilled pseudos.

        * global.c (reg_becomes_live, build_insn_chain): Don't ignore
        spilled pseudos for IRA.
        
        * caller-save.c (calculate_local_save_info,
        save_call_clobbered_regs): Ignore spilled pseudos for IRA.
        
        * toplev.c (backend_init_target): Call init_ira.
        (backend_init): Move call of init_ira_once before
        backend_init_target.
        
        * ira.h (init_ira, sort_insn_chain, mark_memory_move_deletion):
        New function prototypes.
        (retry_ira_color): Rename to reassign_pseudos.  Change
        signature.

        * ira-int.h (allocno): New member dont_reassign_p.
        (ALLOCNO_DONT_REASSIGN_P): New macro.
        (memory_move_cost): Change element type.
        (register_move_cost): Change type.
        (register_may_move_in_cost, register_may_move_out_cost,
        reg_class_intersect): New arrays.
        (important_class_nums): Fix element type.
        (hard_reg_not_in_set_p): Make it static inline.
        (init_register_move_cost, init_ira_costs): New function
        prototypes.
        (allocno_conflict_index): Remove.
        (allocate_and_set_costs, allocate_and_copy_costs,
        allocate_and_set_or_copy_costs): New static inline functions.
        
        * ira-build.c (compress_allocno_conflict_vec,
        compress_conflict_vecs): New functions.
        (allocno_conflict_index): Remove.
        (allocno_conflict_check, curr_allocno_conflict_check_tick): New
        variables.
        (propagate_info_to_cap): Use allocate_and_copy_costs.
        (check_and_add_conflicts): Don't call allocno_conflict_index.
        (ira_flattening): Add some assertions.  Check that cost vectors
        have been allocated.  Don't call allocno_conflict_index.  Call
        compress_conflict_vecs.

        * ira.c (memory_move_cost, register_move_cost): Change types.
        (register_may_move_in_cost, register_may_move_out_cost,
        strict_class_subset_p): New variables.
        (setup_class_subset_and_move_costs): Rename to
        setup_class_subset_and_memory_move_costs.  Remove
        register_move_cost setup.  Don't consider no_unit_alloc_regs.  Add
        strict_class_subset_p setup.
        (setup_reg_class_intersect): Rename to
        setup_reg_class_intersect_union.  Don't consider
        no_unit_alloc_regs.  Add reg_class_union setup.
        (hard_reg_not_in_set_p): Move to ira-int.h.
        (setup_reg_subclasses): Use no_unit_alloc_regs instead of
        fixed_reg_set.  Don't consider no_unit_alloc_regs.
        (important_class_nums): Fix element type.
        (setup_cover_classes): Use no_unit_alloc_regs instead of
        fixed_reg_set.  Don't consider no_unit_alloc_regs.
        (setup_class_translate): Ditto.
        (reg_class_union): New variable.
        (init_register_move_cost, free_register_move_costs): New
        functions.
        (init_ira_once): Initialize register_move_cost,
        register_may_move_in_cost, register_may_move_out_cost.  Move some
        code to init_ira.
        (init_ira): New function.  Move some code from init_ira_once.
        Call free_register_move_costs and init_ira_costs.
        (calculate_allocation_cost): Check allocation of allocno hard reg
        cost vector.
        (basic_block_order_nums): New variable.
        (chain_freq_compare, chain_bb_compare, sort_insn_chain): New
        functions.
        (ira): Call sort_insn_chain.

        * ira-color.c (allocno_coalesced_p): New variable.
        (update_copy_costs): Use allocate_and_set_or_copy_costs.
        (assign_hard_reg): Clear and use
        processed_coalesced_allocno_bitmap only if allocno_coalesced_p.
        Use allocate_and_copy_costs.  Use allocno cover class cost if the
        hard register cost vector is not allocated.
        (get_coalesced_allocnos_best_class_and_freq): Use
        reg_class_intersect instead of reg_class_subintersect.
        (add_allocno_to_ordered_bucket): Use strict_class_subset_p.
        (push_allocno_to_stack): Clear and use
        processed_coalesced_allocno_bitmap only if allocno_coalesced_p.
        (setup_allocno_left_conflicts_num): Don't setup
        ALLOCNO_UPDATED_HARD_REG_COSTS and
        ALLOCNO_UPDATED_CONFLICT_HARD_REG_COSTS.  Clear and use
        processed_coalesced_allocno_bitmap only if allocno_coalesced_p.
        (put_allocno_into_bucket): Don't setup
        ALLOCNO_UPDATED_HARD_REG_COSTS and
        ALLOCNO_UPDATED_CONFLICT_HARD_REG_COSTS.
        (coalesced_allocno_conflict_p): Clear and use
        processed_coalesced_allocno_bitmap only if allocno_coalesced_p.
        (coalesce_allocnos): Setup allocno_coalesced_p.
        (color_allocnos): Add processing reg class NO_REGS.
        (color_pass): Propagate assignment of spilled allocno not
        mentioned in the subregion for the mixed algorithm.  Use
        allocate_and_set_costs.
        (move_spill_restore, mark_allocation_change): Check unallocated
        hard reg cost vectors.
        (setup_curr_costs): Don't setup ALLOCNO_UPDATED_HARD_REG_COSTS and
        ALLOCNO_UPDATED_CONFLICT_HARD_REG_COSTS.  Use
        allocate_and_set_or_copy_costs.
        (mark_memory_move_deletion, allocno_reload_assign,
        pseudo_reg_compare, reassign_pseudos): New functions.
        (retry_ira_color): Remove.
        
        * ira-conflicts.c (add_insn_allocno_copies): Use
        allocate_and_set_costs.
        (allocno_conflict_p): Simplify the code.
        
        * ira-costs.c: Rename reg_class_subunion to reg_class_union
        everywhere.
        (cost_classes, cost_classes_num, cost_class_nums,
        max_struct_costs_size): New variables.
        (copy_cost): Use init_register_move_cost instead of
        init_move_cost.
        (record_reg_classes): Ditto.  Use cost_classes and
        cost_classes_num instead of important_classes and
        important_classes_num.  Use register_may_move_{in,out}_cost
        instead of may_move_{in,out}_cost.  Check reg class intersection
        for alt_cost.
        (record_address_regs): Use init_register_move_cost instead of
        init_move_cost.  Use cost_classes and cost_classes_num instead of
        important_classes and important_classes_num.  Use
        register_may_move_in_cost instead of may_move_in_cost.
        (scan_one_insn): Use cost_classes_num instead of
        important_classes_num.
        (print_costs): Use cost_classes and cost_classes_num instead of
        important_classes and important_classes_num.
        (find_allocno_class_costs): Initialize cost_classes and
        cost_class_nums.  Use cost_classes and cost_classes_num instead of
        important_classes and important_classes_num.
        (process_bb_node_for_hard_reg_moves): Use allocate_and_set_costs.
        (setup_allocno_cover_class_and_costs): Use cost_classes and
        cost_classes_num instead of important_classes and
        important_classes_num.
        (init_ira_costs_once): Move some code to init_ira_costs.  Initiate
        cost_classes.
        (free_ira_costs: New function.  Move some code from
        finish_ira_costs_once.
        (init_ira_costs): New function.  Move some code from
        init_ira_costs_once.  Use max_struct_costs_size instead of
        struct_costs_size.  Call free_ira_costs.  Allocate cost_classes.
        (finish_ira_costs_once): Move some code to finish_ira_costs.  Call
        free_ira_costs.
        (ira_costs): Use max_struct_costs_size instead of
        struct_costs_size.  Use allocate_and_set_costs.

        * ira-emit.c (modify_move_list): Remove allocation of hard reg
        cost vectors.

        * ira-lives.c (process_single_reg_class_operands): Add new
        parameter freq.  Calculate costs basing on the frequency.
        (process_bb_node_lives): Pass the frequency to
        process_single_reg_class_operands.
        
2007-12-17  Vladimir Makarov  <vmakarov@redhat.com>

        * doc/invoke.texi (fira-algoirthm): Remove prioirity coloring.
        Make mixed the default.

        * flags.h (ira_algorithm): Remove IRA_ALGORITHM_PRIORITY.

        * ira-color.c (priority_coloring):  Remove.
        (do_coloring): Don't call priority_coloring.

        * opts.c (common_handle_option): Remove priority coloring option.

        * toplev.c (flag_ira_algorithm): Assign IRA_ALGORITHM_MIXED.
        
        * ira-build.c (check_and_add_conflicts, ira_flattening): Increase
        threshold for internal_flag_ira_verbose.
        
2007-12-17  Vladimir Makarov  <vmakarov@redhat.com>

        * common.opt (fira-assign-after-call-split, fira-biased-coloring,
        fira-split-around-calls): Remove.
        (fdump-simple-rtl, fira-verbose): New options.
        (fira, fira-coalesce): Initiate by 0.

        * opts.c (common_handle_option):  Process flag_ira_verbose.

        * flags.h (flag_ira_verbose): New external definition.

        * toplev.h (flag_ira_assign_after_call_split,
        flag_ira_biased_coloring, flag_ira_split_around_calls):  Remove.

        * toplev.c (flag_ira_verbose): New external declaration.
        (finalize): Call finish_ira_once.

        * print-rtl.c (flag_simple):  Rename to flag_dump_simple_rtl.

        * doc/invoke.texi (-fno-ira-assign-after-call-split,
        -fira-biased-coloring, -fno-ira-split-around-calls):  Remove.
        (-fdump-simple-rtl, -fira-verbose): New options.

        * caller-save.c (insert_restore, insert_save): Use
        adjust_address_nv instead of adjust_address.  Check the mode by
        reg_save_code.

        * ira-call.c: Remove file.

        * ira-lives.c: New file.

        * Makefile.in (ira-live.o): Add
        (ira-call.o): Remove.
        (IRA_INT_H): Add alloc-pool.h.

        * ira.h (finish_ira_once): New external definition.

        * ira-int.h (internal_flag_ira_verbose, alloc_pool allocno_pool,
        copy_pool, allocno_live_range_pool, ira_loop_tree_height,
        max_point, start_point_ranges, finish_point_ranges,
        prohibited_mode_move_regs, important_class_nums,
        ira_curr_regno_allocno_map, allocno_set_words): New external
        definitions.
        (loop_tree_node_t, allocno_live_range_t): New typedefs.  Use them
        everywhere.
        (ira_loop_tree_node): Rename to loop_tree_node.
        (loop_tree_node): New member level.
        (allocno_live_range): New structure.
        (allocno): New members nrefs, live_ranges,
        total_conflict_hard_regs, conflict_allocnos_num,
        total_conflict_allocnos_num, mem_optimized_dest,
        mem_optimized_dest_p, total_no_stack_reg_p.  Remove members
        conflict_allocno_vec_active_size and original_memory_cost.  Rename
        member curr_hard_reg_costs to updated_hard_reg_costs.
        (ALLOCNO_TOTAL_CONFLICT_ALLOCNOS_NUM,
        ALLOCNO_TOTAL_CONFLICT_HARD_REGS, ALLOCNO_CONFLICT_ALLOCNOS_NUM,
        ALLOCNO_TOTAL_CONFLICT_ALLOCNOS_NUM, ALLOCNO_NREFS,
        ALLOCNO_MEM_OPTIMIZED_DEST, ALLOCNO_MEM_OPTIMIZED_DEST_P,
        ALLOCNO_TOTAL_NO_STACK_REG_P, ALLOCNO_LIVE_RANGES): New access
        macros.
        (ALLOCNO_CONFLICT_ALLOCNO_VEC_ACTIVE_SIZE,
        ALLOCNO_ORIGINAL_MEMORY_COST): Remove.
        (ALLOCNO_CURR_CONFLICT_HARD_REG_COSTS): Rename to
        ALLOCNO_UPDATED_CONFLICT_HARD_REG_COSTS.
        (allocno_copy): New member loop_tree_node.
        (INT_BITS, INT_TYPE, EXECUTE_IF_SET_IN_ALLOCNO_SET): Move from
        ira-conflicts.c.
        (SET_ALLOCNO_SET_BIT, CLEAR_ALLOCNO_SET_BIT,
        TEST_ALLOCNO_SET_BIT): New macros.
        (ira_reallocate, allocno_conflict_index, add_allocno_conflict,
        create_allocno_live_range, finish_allocno_live_range,
        add_allocno_copy_to_list, swap_allocno_copy_ends_if_necessary,
        remove_allocno_copy_from_list, add_allocno_copy, ira_flattening,
        finish_ira_costs_once, rebuild_start_finish_chains,
        print_live_range_list, debug_live_range_list,
        debug_allocno_live_ranges, debug_live_ranges,
        create_allocno_live_ranges, finish_allocno_live_ranges,
        allocno_conflict_p, loop_edge_freq): New external function
        definitions.
        (hard_reg_in_set_p, original_regno_call_crossed_p,
        ira_max_regno_before, ira_max_regno_call_before): Remove.
        (traverse_loop_tree): Add new parameter type.
        (create_copy): Ditto.
        (debug_conflicts, ira_emit, add_allocno_copy): Add parameter.
        (debug_ira_call_data, split_around_calls, get_around_calls_regno):
        Remove.
        
        * ira.c (setup_prohibited_mode_move_regs): New function.
        (internal_flag_ira_verbose, allocno_pool, copy_pool,
        allocno_live_range_pool, important_class_nums): New external
        variables.
        (IRA_NO_OBSTACK): Uncomment it.
        (ira_reallocate): New function.
        (setup_cover_classes): Set up important_class_nums.
        (finish_ira_once): New function.
        (prohibited_mode_move_regs,
        prohibited_mode_move_regs_initialized_p): New global variables.
        (setup_prohibited_mode_move_regs): New function.
        (setup_reg_renumber): Remove parameters.
        (setup_allocno_assignment_from_reg_renumber): Rename to
        setup_allocno_assignment_flags.  Set up ALLOCNO_ASSIGNED_P.
        (calculate_allocation_cost): Use ALLOCNO_UPDATED_MEMORY_COST.
        (ira_max_regno_before, ira_max_regno_call_before): Remove.
        (ira): Set up internal_flag_ira_verbose.  Call
        setup_prohibited_mode_move_regs.  Create and destroy allocno,
        copy, and live range pools.  Remove original_regno_call_crossed_p.
        Report major passes.  Use argument for ira_emit.  Call
        ira_flattening and df_analyze.  Remove live range splitting around
        calls.
        
        * ira-build.c (setup_loop_tree_level, rebuild_regno_allocno_maps,
        expand_calls, compress_calls, allocno_conflict_index,
        add_to_allocno_conflict_vec, propagate_info_to_cap,
        copy_allocno_live_range, copy_allocno_live_range_list,
        finish_allocno, finish_copy,
        propagate_info_to_loop_tree_node_caps, merge_ranges,
        common_loop_tree_node_dominator, check_and_add_conflicts,
        add_conflict_with_underlying_allocnos, ira_flattening): New
        functions.
        (check_coalesced_allocnos): Remove.
        (ira_loop_tree_height): New external variable.
        (form_loop_tree): Call setup_loop_tree_level.
        (initiate_calls): Allocate a bit more.  (create_allocno): Use
        pool_alloc.  Set up ALLOCNO_TOTAL_CONFLICT_ALLOCNOS_NUM,
        ALLOCNO_TOTAL_CONFLICT_HARD_REGS, ALLOCNO_NREFS,
        ALLOCNO_TOTAL_NO_STACK_REG_P, ALLOCNO_MEM_OPTIMIZED_DEST,
        ALLOCNO_MEM_OPTIMIZED_DEST_P, ALLOCNO_UPDATED_MEMORY_COST, and
        ALLOCNO_LIVE_RANGES.  Rename
        ALLOCNO_CONFLICT_ALLOCNO_VEC_ACTIVE_SIZE,
        ALLOCNO_CURR_HARD_REG_COSTS, and
        ALLOCNO_CURR_CONFLICT_HARD_REG_COSTS to
        ALLOCNO_CONFLICT_ALLOCNOS_NUM, ALLOCNO_UPDATED_HARD_REG_COSTS, and
        ALLOCNO_UPDATED_CONFLICT_HARD_REG_COSTS.
        (add_allocno_conflict): Make it external.  Use
        add_to_allocno_conflict_vec.
        (create_cap_allocno): Move part of code to propagate_info_to_cap.
        (finish_allocnos): Use finish_allocno.
        (add_allocno_copy_to_list, remove_allocno_copy_from_list,
        swap_allocno_copy_ends_if_necessary, add_allocno_copy): Move from
        ira-conflicts.c.  Make them external.
        (create_copy): Use pool_alloc.  Add parameter loop_tree_node.
        (finish_copies): Use finish_copy.
        (ira_curr_regno_allocno_map): New external variable.
        (traverse_loop_tree): Add parameter bb_first_p.
        (create_insn_allocnos): Update ALLOCNO_NREFS.
        (create_loop_tree_node_allocnos): Traverse loop tree nodes with
        BBs first.  Update ALLOCNO_NREFS.
        (create_loop_tree_node_caps): Move part of code to
        propagate_info_to_loop_tree_node_cap.
        (regno_top_level_allocno_map): New global variable.
        (ira_build): Create caps before build conflicts.  Call
        create_allocno_live_ranges.  Propagate info to caps.  Report
        statistics.
        (ira_destroy): Call finish_allocno_live_ranges.

        * ira-conflicts.c (set_allocno_live, clear_allocno_live,
        record_regno_conflict, mark_reg_store, mark_reg_clobber,
        mark_reg_conflicts, mark_reg_death): Remove.
        (add_insn_allocno_copies, add_copies): New functions.
        (add_allocno_copy_to_list, remove_allocno_copy_from_list,
        swap_allocno_copy_ends_if_necessary, add_allocno_copy): Remove.
        (add_allocno_copies): Rename to add_insn_allocno_copies.  Use
        ira_curr_regno_allocno_map and add_insn_allocno_copies.
        (single_reg_class, single_reg_operand_class,
        process_single_reg_class_operands, process_bb_node_for_conflicts):
        Remove.
        (INT_BITS, INT_TYPE, EXECUTE_IF_SET_IN_ALLOCNO_SET): Move to
        ira-int.h.
        (allocnos_live_bitmap, SET_ALLOCNO_CONFLICT_ROW,
        CLEAR_ALLOCNO_CONFLICT_ROW, TEST_ALLOCNO_CONFLICT_ROW): Remove.
        (SET_ALLOCNO_LIVE, CLEAR_ALLOCNO_LIVE, TEST_ALLOCNO_LIVE):
        Use {SET, CLEAR, TEST}_ALLOCNO_SET_BIT.
        (allocno_row_words, hard_regs_live, curr_bb_node,
        curr_regno_allocno_map, curr_reg_pressure): Remove.
        (CONFLICTP): Rename to CONFLICT_P.
        (regs_set): Remove.
        (propagate_allocno_info): Use ALLOCNO_TOTAL_CONFLICT_HARD_REGS.
        Set up ALLOCNO_CALLS_CROSSED_START.
        (allocno_conflict_p): New function.
        (allocno_reg_conflict_p): Use allocno_conflict_p.
        (build_allocno_conflict_vects): Divide original and propagated
        conflicts.
        (print_hard_reg_set): New function.
        (print_conflicts): Use print_hard_reg_set.  Set up mark for the
        start of propagated conflicts.
        (debug_conflicts): Add parameter.
        (ira_build_conflicts): Call add_copies.  Set up
        ALLOCNO_TOTAL_CONFLICT_HARD_REGS.

        * ira-costs.c (struct costs): Make cost allocated dynamically.
        (struct_costs_size, temp_cots, op_costs, this_op_costs): New
        variables.
        (costs): Rename to total_costs.
        (COSTS_OF_ALLOCNO): New macro.
        (curr_regno_allocno_map): Remove.  Use ira_curr_regno_allocno_map
        instead.
        (record_reg_classes): Check NO_REGS in allocno_pref.
        (record_address_regs): Use COSTS_OF_ALLOCNO.
        (scan_one_insn): Ditto.
        (print_costs): Ditto.
        (find_allocno_class_costs): Ditto.  Pass additional argument to
        traverse_loop_tree.  Set up NO_REGS if memory is cheaper.
        (setup_allocno_cover_class_and_costs): Use
        ALLOCNO_UPDATED_MEMORY_COST instead of
        ALLOCNO_ORIGINAL_MEMORY_COST, ALLOCNO_UPDATED_HARD_REG_COSTS
        instead of ALLOCNO_CURR_HARD_REG_COSTS, and
        ALLOCNO_UPDATED_CONFLICT_HARD_REG_COSTS instead of
        ALLOCNO_CURR_CONFLICT_HARD_REG_COSTS.  Pass additional argument to
        traverse_loop_tree.
        (init_ira_costs_once): Allocate init_cost, op_costs,
        this_op_costs, temp_costs.
        (finish_ira_costs_once): New function.
        
        * ira-color.c: Use ALLOCNO_UPDATED_MEMORY_COST instead of
        ALLOCNO_ORIGINAL_MEMORY_COST, ALLOCNO_UPDATED_HARD_REG_COSTS
        instead of ALLOCNO_CURR_HARD_REG_COSTS, and
        ALLOCNO_UPDATED_CONFLICT_HARD_REG_COSTS instead of
        ALLOCNO_CURR_CONFLICT_HARD_REG_COSTS.  Use
        ALLOCNO_TOTAL_CONFLICT_HARD_REGS instead of
        ALLOCNO_CONFLICT_HARD_REGS.
        (processed_allocno_bitmap): Rename into
        processed_coalesced_allocno_bitmap.
        (allocno_cost_compare_func): Use ALLOCNO_UPDATED_MEMORY_COST
        instead of ALLOCNO_MEMORY_COST.
        (assign_hard_reg): Remove biased coloring.
        (add_allocno_to_ordered_bucket): Check cover class first.
        (loop_edge_freq): Make it external.
        (setup_allocno_left_conflicts_num): Check that conflicting
        allocnos of one class.
        (allocno_conflict_p): Rename to coalesced_allocno_conflict_p.
        (color_pass): Check pressure in the loop (not in subloops) for
        mixed algorithm.
        (allocno_priorities): New variable.
        (start_allocno_priorities, finish_allocno_priorities): New
        functions.
        (allocno_priority_compare_func): Use allocno_priorities.
        (priority_coloring): Call start_allocno_priorities and
        finish_allocno_priorities.
        (do_coloring): Pass additional argument to traverse_loop_tree.
        
        * ira-emit.c (struct move): Add member insn.
        (create_move): Initialize member insn.
        (generate_edge_moves): Set up ALLOCNO_MEM_OPTIMIZED_DEST and
        ALLOCNO_MEM_OPTIMIZED_DEST_P.
        (change_loop): Check prohibited_mode_move_regs.
        (curr_jump_map, can_move_through_p): Remove.
        (unify_moves): Don't move through jump.
        (modify_move_list): Set up attributes for new allocno used for
        breaking dependency loops.
        (emit_move_list): Set up insn codes.
        (update_costs, add_range_and_copies_from_move_list,
        add_ranges_and_copies): New functions.
        (ira_emit): Add a parameter.  Call add_ranges_and_copies.
        
2007-10-09  Vladimir Makarov  <vmakarov@redhat.com>

        * toplev.h (flag_ira_coalesce): New external variable.

        * ira-int.h (allocno): New members first_coalesced_allocno,
        next_coalesced_allocno.
        (ALLOCNO_FIRST_COALESCED_ALLOCNO, ALLOCNO_NEXT_COALESCED_ALLOCNO):
        New macros.
        (reg_class_subintersect): New external variable.

        * ira-color.c (processed_allocno_bitmap): New variable.
        (allocno_cost_compare_func, print_coalesced_allocno): New
        functions.
        (assign_hard_reg): Process coalesced allocnos.
        (get_coalesced_allocnos_best_class_and_freq): New function.
        (add_allocno_to_ordered_bucket): Use the function.
        (push_allocno_to_stack, push_allocnos_to_stack): Process coalesced
        allocnos.
        (remove_allocno_from_bucket_and_push, pop_allocnos_from_stack):
        Use print_coalesced_allocno.
        (setup_allocno_available_regs_num,
        setup_allocno_left_conflicts_num): Process coalesced allocnos.
        (copy_freq_compare_func, allocno_conflict_p, coalesce_allocnos):
        New functions.
        (color_allocnos): Allocate/free processed_allocno_bitmap.  Call
        coalesce_allocnos.
        (priority_coloring): Allocate/free processed_allocno_bitmap.

        * ira-build.c (check_coalesced_allocnos): New function.
        (create_allocno): Initiate next_coalesced_allocno,
        first_coalesced_allocno.
        (create_cap_allocno): Check  next_coalesced_allocno,
        first_coalesced_allocno.

        * common.opt (fira-coalesce): New option.

        * ira.c (setup_reg_class_intersect): New function.
        (reg_class_subintersect): New global variable.
        (init_ira_once): Call setup_reg_class_intersect.

        * doc/invoke.texi (-fira-coalescing): New option.
        
2007-09-20  Vladimir Makarov  <vmakarov@redhat.com>

        * ira-build.c (create_allocno): Initialize ALLOCNO_BEST_CLASS.

        * ira-color.c (add_allocno_to_ordered_bucket): Use
        ALLOCNO_BEST_CLASS.

        * ira-costs.c (setup_allocno_cover_class_and_costs): Initialize
        ALLOCNO_BEST_CLASS.

        * ira-int.h (allocno): New member best_class.
        (ALLOCNO_BEST_CLASS): New macro.
        
2007-09-19  Vladimir Makarov  <vmakarov@redhat.com>

        * ira-int.h (allocno): Remove calls_crosed.  Add
        calls_crossed_start.
        (ALLOCNO_CALLS_CROSSED): Remove.
        (ALLOCNO_CALLS_CROSSED_START): Add.
        (build_df): Remove.
        (regno_calls, add_regno_call): New.
        
        * ira-build.c (initiate_calls, finish_calls, add_regno_call): New
        functions.
        (regno_calls, regno_calls_num): New globals.
        (build_df): Remove.
        (add_loop_to_tree): Use loop_outer.
        (form_loop_tree): Ditto.
        (initiate_allocnos, create_cap_allocno): Remove
        ALLOCNO_CALLS_CROSSED.  Add ALLOCNO_CALLS_CROSSED_START.
        (finish_allocnos): Remove ALLOCNO_CALLS_CROSSED.
        (create_bb_allocnos, create_loop_allocnos): Use DF_LR_{IN,OUT}
        instead of DF_UPWARD_LIVE_{IN,OUT}.
        (ira_build): Remove adding df problems and call of
        free_dominance_info.  Call initiate_calls.
        (ira_destroy): Add free_dominance_info and finish_calls.  Remove
        df_finish.

        * ira-emit.c (change_regs): Return the result.
        (generate_edge_moves): Use DF_LR_{IN,OUT} instead of
        DF_UPWARD_LIVE_{IN,OUT}.
        (change_loop): Call df_insn_rescan and df_note_rescan if there is
        a change.
        (can_move_through_p): Use hard_reg_set_equal_p instead of
        GO_IF_HARD_REG_EQUAL.

        * ira-costs.c (copy_cost, record_reg_classes,
        record_address_regs): Call init_move_cost if it is necessary.
        (tune_allocno_costs_and_cover_classes): Use regno_calls and
        ALLOCNO_CALLS_CROSSED_START instead of ALLOCNO_CALLS_CROSSED.

        * ira-conflicts.c (n_regs_set): Remove.
        (regs_set): Make it a vector.
        (mark_reg_store, mark_reg_clobber): Change 2nd parameter type.
        (process_bb_node_for_conflicts): Use DF_LR_IN instead of
        DF_UPWARD_LIVE_IN.  Call add_regno_call.  Initialize
        ALLOCNO_CALLS_CROSSED_START.  Remove ALLOCNO_CALLS_CROSSED.
        (build_conflict_bit_table): Initialize and finalize regs_set.
        (propagate_allocno_info): Remove ALLOCNO_CALLS_CROSSED.
        Initialzie ALLOCNO_CALLS_CROSSED_START.
        
        * ira-color.c (setup_allocno_available_regs_num,
        setup_allocno_left_conflicts_num): New functions.
        (update_allocno_avaialable_regs): Remove.
        (sorted_allocnos, allocno_stack_varray): Move upper.
        (assign_hard_reg): Use hard_reg_set_subset_p instead of
        GO_IF_HARD_REG_SUBSET.
        (loop_edge_freq): Use DF_LR_{IN,OUT} instead of
        DF_UPWARD_LIVE_{IN,OUT}.
        (put_allocno_into_bucket): Call setup_allocno_available_regs_num
        and setup_allocno_left_conflicts_num.
        (print_loop_title): Use loop_depth.
        (allocno_priority_compare_func): Remove REG_N_REFS and
        REG_LIVE_LENGTH.
        (retry_ira_color): Use SET_REGNO.  Use ALLOCNO_CALLS_CROSSED_NUM
        instead of ALLOCNO_CALLS_CROSSED.
        (collect_pseudo_call_clobbered_regs):  Use regno_calls and
        ALLOCNO_CALLS_CROSSED_START instead of ALLOCNO_CALLS_CROSSED.

        * ira-call.c (init_ira_call_data): Add argument to
        post_order_compute.
        (n_regs_set): Remove.
        (regs_set): Make it a vector.
        (mark_reg_store, mark_reg_clobber): Change 2nd parameter type.
        (mark_referenced_regs): Check null x.
        (put_save_restore_and_calculate_local_info): Initialize and
        finalize regs_set.  Use DF_LR_{IN,OUT} instead of
        DF_UPWARD_LIVE_{IN,OUT}.  Use loop_outer.
        (do_init_nothing): Remove.
        (save_trans_fun, save_con_fun_0, restore_trans_fun,
        restore_con_fun_0): Remove 1st parameter.
        (save_con_fun_n, restore_con_fun_n): Ditto.  Use
        df_simple_dataflow instead of df_analyze_problem.
        (put_save_restore): Use DF_LR_IN instead of DF_UPWARD_LIVE_IN.
        Call mark_all_referenced_regs for all insn.  Use bitmap progress.
        (get_move_insn): New function.
        (put_save_restore_and_calculate_local_info, put_save_restore): Use
        the function.

        * ira.c (insn_contains_asm_1, insn_contains_asm,
        compute_regs_asm_clobbered, expand_reg_info): New functions.
        (setup_class_subset_and_move_costs): Use hard_reg_set_subset_p
        instead of GO_IF_HARD_REG_SUBSET.
        (setup_reg_subclasses, setup_class_translate): Ditto. Use
        hard_reg_set_equal_p instead of GO_IF_HARD_REG_EQUAL.
        (setup_eliminable_regset): Call compute_regs_asm_clobbered.  Use
        df_set_regs_ever_live instead of regs_ever_live.
        (setup_reg_renumber): Check reg_equiv_const and
        reg_equiv_invariant_p.
        (ira): Remove no_new_pseudos. Add df-problems and analyze.  Call
        regstat_init_n_sets_and_refs and regstat_compute_ri.  Remove
        delete_unreachable_blocks.  Use expand_reg_info.  Move
        setup_preferred_alternate_classes upper.  Remove life_analysis.
        Prepare df-insfrastructure for reload.

        * regclass.c (setup_reg_classes): Don't use reg_pref_buffer.

        * function.[ch] (get_call_invalidated_used_regs): Change 1st
        parameter type.
        
        * gengtype.c (main): Add HARD_REG_SET.

        * alias.c (value_addr_p): New function.
        (nonoverlapping_memrefs_p): Use it.

        * caller-save.c (init_caller_save): Use DF_LR_TOP for IRA instead
        of global_live_at_start.
        
2007-05-04  Vladimir Makarov  <vmakarov@redhat.com>

        * ira-conflicts.c: Change pseudo to allocno.
        * ira-color.c: Ditto.
        * ira-emit.c: Ditto.
        * ira-build.c: Ditto.
        * ira.c: Ditto.
        (important_classes_num, important_classes): New variables.
        (setup_cover_classes): Set up the variable values.
        * ira-costs.c: Ditto.
        (record_reg_classes, record_address_regs, scan_one_insn,
        find_pseudo_class_costs):  Process only important classes.
        * ira-call.c: Ditto.  Add comments about placement optimization.
        * ira-int.h: Ditto.
        (allocno) Use one bit field for boolean members.
        (important_classes_num, important_classes): New external
        definitions.

2007-03-16  Vladimir Makarov  <vmakarov@redhat.com>

        * flags.h (ira_algorithm): Add IRA_ALGORITHM_MIXED.

        * opts.c (common_handle_option): Set up IRA_ALGORITHM_MIXED from
        the option argument.
        
        * common.opt (fira-assign-after-call-split, fira-propagate-cost,
        fira-split-around-calls): New options.
        (fira-ipra): Switch off by default.
        
        * doc/invoke.texi (-fira-algorithm): Add mixed algorithm.
        (-fno-ira-ipra): Rename to -fira-ipra.
        (-fno-ira-assign-after-call-split, -fira-propagate-cost,
        -fno-ira-split-around-calls): Add new options.
        
        * ira-conflicts.c (curr_reg_pressure): New variable.
        (set_pseudo_live, clear_pseudo_live, mark_reg_store,
        mark_reg_death): Update reg pressure.
        (add_pseudo_copies): Decrease cost for copy with dead pseudo.
        (process_bb_node_for_conflicts): Propagate reg pressure.
        (build_conflict_bit_table): Call process_bb_node_for_conflicts in
        preorder.
        (ira_build_conflicts): Add new coloring algorithm.
        (ira_build_conflicts): Add flag_ira_split_around_calls.

        * ira-emit.c (change_loop): Print allocation on the region
        borders.  Use pseudo_cap_member instead of regno.
        (modify_move_list): Add parameter to create pseudo.
        (ira_emit): Use pseudo_cap_member instead of regno.
        
        * ira-build.c (create_loop_tree_nodes): Set up initial reg
        pressure.
        (create_pseudo): Add parameter.  Use the parameter value instead
        of regno.
        (print_expanded_pseudo): Use pseudo_cap_member instead of regno.
        (create_cap_pseudo, create_insn_pseudos, create_bb_pseudos,
        create_loop_pseudos): Add argument to create_pseudo call.
        (create_pseudos, ira_build): Process IRA_ALGORITHM_MIXED.
        (create_loop_tree_node_caps):  Create cap pseudo for all pseudos
        not having father pseudo.
        
        * final.c (rest_of_handle_final): Process INCOMING_REGNO.

        * toplev.h (flag_ira_assign_after_call_split,
        flag_ira_propagate_cost, flag_ira_split_around_calls): New flags.

        * caller-save.c (save_call_clobbered_regs): Move declaration
        this_insn_sets to the function start.
        
        * ira-int.h (ira_loop_tree_node): Add reg_pressure.
        (pseudo): More comments for regno and cap_member
        (original_regno_call_crossed_p, ira_max_regno_before,
        ira_max_regno_call_before): New external variables.
        (create_pseudo): Add parameter.
        (reassign_conflict_pseudos, debug_ira_call_data,
        split_around_calls, get_around_calls_regno): New function
        prototypes.

        * ira-color.c (assign_hard_reg): Set best_hard_regno and
        conflict_regs earlier.  Check register availability earlier.
        Ignore conflict and copy cost for PSEUDO_MAY_BE_SPILLED_P.
        (calculate_pseudo_spill_cost): Use pseudo_cap instead of regno.
        Check father pseudo instead of subloop pseudos.
        (pop_pseudos_from_stack): Set up PSEUDO_ASSIGNED_P for NO_REGS
        pseudo.
        (print_loop_title): Print reg pressure.
        (color_pass): Use PSEUDO_CAP_MEMBER instead of regno.  Add mixed
        coloring algorithm.
        (move_spill_restore): Use PSEUDO_CAP_MEMBER instead of regno.  Use
        subloop pseudos instead of father pseudo for cost calculation.
        (setup_curr_costs, reassign_conflict_pseudos): New functions.
        (retry_ira_color): Don't allocate call used registers when
        flag_caller_saves or flag_ira_split_around_calls.  Call
        setup_curr_cost.  Print about spilling pseudo split around calls.
        (reuse_stack_slot): Choose the slot with minimal memory-memory
        costs.

        * ira.c (setup_reg_renumber): Add 2 parameters.  Use cap_number
        instead of regno.  Initialize caller_save_needed.  Make assertion
        stricter.
        (setup_pseudo_assignment_from_reg_renumber): New function.
        (calculate_allocation_cost): Add assertion.
        (print_redundant_copies): Use cap_number instead of regno.
        (original_regno_call_crossed_p, ira_max_regno_before,
        ira_max_regno_call_before): New global variables.
        (ira): Process IRA_ALGORITHM_MIXED.  Set up
        ira_max_regno_call_before and ira_max_regno_before.  New arguments
        for setup_reg_renumber.  Reassign if pseudo changed its class.
        Split pseudos around the call if necessary.  Reassign if a pseudo
        is split.

        * ira.h: New year for Copyright.

        * ira-costs.c (reg_pref): Rename to pseudo_pref.
        (reg_pref_buffer): rename to pseudo_pref_buffer.
        (find_pseudo_class_costs): Initialize best_cost and best_class.
        Process IRA_ALGORITHM_MIXED.  Find best cover class for regno.
        (process_bb_node_for_hard_reg_moves): Process IRA_ALGORITHM_MIXED.

        * Makefile.in (ira-call.o): Add new file.

        * reload1.c (calculate_needs_all_insns): Remove unnecessary
        memory-memory move.

        * ira-call.c: New file.
        
2007-02-09  Vladimir Makarov  <vmakarov@redhat.com>

        * common.opt (fipra): Rename to fira-ipra.  Make it default.
        (fira-move-spills, fira-share-save-slots, fira-share-spill-slots):
        New.
        * toplev.h (flag_ipra): Rename to flag_ira_ipra.
        (flag_ira_move_spills, flag_ira_share_save_slots,
        flag_ira_share_spill_slots): New external definitions.
        * doc/invoke.texi (-fipra): Rename to -fno-ira-ipra. 
        (-fno-ira-move-spills, -fno-ira-share-save-slots,
        -fno-ira-share-spill-slots): New options.
        * function.c (get_call_invalidated_used_regs): Rename flag_ipra to
        flag_ira_ipra.
        * ira-costs.c (tune_pseudo_costs_and_cover_classes): Ditto.
        * caller-save.c (setup_save_areas): Use flag_ira_share_save_slots.
        Rename flag_ipra to flag_ira_ipra.
        (flag_ira_share_save_slots): Use flag_ira_move_spills.
        * ira-color.c (assign_hard_reg): Skip pseudos with different cover
        class.
        (reuse_stack_slot): Use flag_ira_share_spill_slots.
        * config/arm/arm.h (IRA_COVER_CLASSES): New macro.
        
2007-02-31  Vladimir Makarov  <vmakarov@redhat.com>

        * reload.h (debug_save_data): New definition.
        
        * caller-save.c (struct bb_info): New.
        (BB_INFO, BB_INFO_BY_INDEX): New macros.
        (calculate_local_save_info, set_up_bb_rts_numbers, rpost_cmp,
        calculate_save_in_out, calculate_save_here,
        make_global_save_analysis, print_hard_reg_set_and_mode,
        print_hard_reg_set, print_save_data, debug_save_data,
        set_hard_reg_saved): New functions.
        (save_call_clobbered_regs): Make global save analysis and use it
        to put save/restore code.
        (insert_one_insn): Check CODE_LABEL.

2007-01-19  Vladimir Makarov  <vmakarov@redhat.com>

        * toplev.h (flag_ipra): New external definition.

        * common.opt (fipra): New option.

        * doc/invoke.texi (-fipra); Document the option.

        * cgraph.h (cgraph_node): New member function_used_regs.

        * cgraph.c (cgraph_create_node): Initialize function_used_regs.

        * final.c (update_regs_ever_live): New function.
        (rest_of_handle_final): Set up function_used_regs and
        call_used_regs.

        * ira-build.c (ira_build): Clear function call_used_regs.

        * function.h: Add hard-reg-set.h header.
        (emit_status): New member call_used_regs.
        (get_call_invalidated_used_regs): New definition.

        * function.c (get_call, get_call_invalidated_used_regs): New
        functions.

        * Makefile.in (FUNCTION_H): Add hard-reg-set.h.
        (caller-save.o): Add dependence on output.h and ira.h

        * regrename.c (copyprop_hardreg_forward_1): Use function
        get_call_invalidated_used_regs.

        * ira-conflicts.c (process_bb_node_for_conflicts): Ditto.

        * postreload-gcse.c (record_opr_changes,
        reg_set_between_after_reload_p, reg_used_between_after_reload_p):
        Ditto.

        * postreload.c (reload_combine, reload_cse_move2add): Ditto.

        * rtlanal.c (reg_set_between_p): Ditto.

        * flow.c (propagate_one_insn): Ditto.

        * df-scan.c (df_insn_refs_record): Ditto.

        * gcse.c (compute_hash_table_work, compute_store_table): Ditto.

        * cselib.c (cselib_process_insn): Ditto.

        * loop-iv.c (simplify_using_assignment): Ditto.

        * sched-deps.c (sched_analyze): Ditto.

        * combine.c (record_dead_and_set_regs): Ditto.

        * resource.c (mark_set_resources, mark_set_resources): Ditto.

        * var-tracking.c (var-tracking.c): Ditto.

        * reload1.c (reload): Ditto.

        * cse.c (invalidate_for_call): Ditto.  Add parameter.
        (cse_insn): Pass the parameter.

        * ira.h (try_to_migrate): Remove the definition.
        (collect_pseudo_call_clobbered_regs): New external definition.

        * ira-color.c (collect_pseudo_call_clobbered_regs): New function.

        * ira-costs.c (tune_pseudo_costs_and_cover_classes): Add cost
        calculation when IPRA is used.

        * caller-save.c: Include headers output.h and ira.h.
        (saved_hard_reg): New structure.
        (hard_reg_map, hard_reg_map, all_saved_regs): New variables.
        (all_saved_regs, new_saved_hard_reg, finish_saved_hard_regs,
        saved_hard_reg_compare_func): New functions.
        (setup_save_areas): Add code for sharing stack slots.
        (save_call_clobbered_regs): Use function
        get_call_invalidated_used_regs.
        
2007-01-12  Vladimir Makarov  <vmakarov@redhat.com>

        * doc/tm.texi (IRA_HARD_REGNO_ADD_COST_MULTIPLIER): New macro.

        * ira-conflicts.c (add_pseudo_copies): Add copy between output and
        died operand pseudos.

        * ira.c (setup_cover_classes, setup_class_translate): Define and
        call only when IRA_COVER_CLASSES is defined.
        (no_alloc_regs): Rename to no_unit_alloc_regs.
        (setup_eliminable_regset): Set up no_alloc_regs.

        * ira-costs.c (tune_pseudo_costs_and_cover_classes): Modify cost
        if IRA_HARD_REGNO_ADD_COST_MULTIPLIER is defined.

        * config/s390/s390.h (IRA_COVER_CLASSES,
        IRA_HARD_REGNO_ADD_COST_MULTIPLIER(regno)): Define.
        
2006-12-22  Vladimir Makarov  <vmakarov@redhat.com>

        * rtl.h (setup_reg_classes): New function prototype.
        
        * regclass.c (setup_reg_classes): New function.

        * global.c (global_alloc): Dump information about register
        assigning.

        * ira-int.h (ira_build): Change prototype signature.

        * ira-color.c (pseudo_compare_func): Rename to
        pseudo_priority_compare_func.
        (priority_coloring): Dump information about register
        assigning.

        * ira-build.c (ira_build): Return true if we have loops for the
        allocation.

        * ira.c (setup_preferred_alternate_classes): New function.
        (ira): Use it instead of regclass.  Rebuild only if we have loops.

2006-12-15  Vladimir Makarov  <vmakarov@redhat.com>

        * ira.h, ira-int.h, ira.c, ira-build.c, ira-costs.c
        ira-conflicts.c, ira-color.c, ira-emit.c: New files.

        * flags.h (ira_algorithm): New enumeration.
        (flag_ira_algorithm): New external variable declaration.

        * tree-pass.h (pass_ira): New external variable declaration.

        * toplev.c (ira.h): New include.
        (flag_ira_algorithm): New global variable.
        (backend_init): Call init_ira_once.

        * toplev.h (flag_ira, flag_ira_biased_coloring): New external
        variable declarations.

        * regs.h (contains_reg_of_mode, move_cost, may_move_in_cost,
        may_move_out_cost): New external variable declarations.
        
        * caller-save.c (no_caller_save_reg_set): New global variable.
        (init_caller_save): Set up no_caller_save_reg_set.
        
        * global.c (eliminable_regset): Make it external.
        (gate_handle_global_alloc): New function.
        (pass_global_alloc): Add the gate function.

        * opts.c (decode_options):  Print the warning for -fira.
        (common_handle_option): Process -fira-algorithm option.

        * timevar.def (TV_IRA): New pass.

        * hard-reg-set.h (no_caller_save_reg_set): New external variable
        declaration.

        * regmove.c (regmove_optimize): Don't do replacement of output
        operands by input operands.
        (rest_of_handle_regmove): Don't do CFG cleanup for IRA.

        * local-alloc.c (update_equiv_regs): Make it external.  Return
        true if jump label rebuilding should be done.
        (gate_handle_local_alloc): New function.
        (pass_local_alloc): Add the gate function.

        * alias.c (stack_addr_p): New function.
        (nonoverlapping_memrefs_p): Add code for IRA.

        * common.opt (fira, fira-algorithm, fira-biased-coloring): New
        options.

        * regclass.c (contains_reg_of_mode, move_cost, may_move_in_cost,
        may_move_out_cost): Make the variables external.
        
        * rtl.h (eliminable_regset): New external variable declaration.
        (update_equiv_regs): New external function definition.

        * Makefile.in (IRA_INT_H): New definition.
        (OBJS-common): Add ira.o, ira-build.o, ira-costs.o,
        ira-conflicts.o, ira-color.o, and ira-emit.o.
        (reload1.o, toplev.o): Add dependence on ira.h.
        (ira.o, ira-build.o, ira-costs.o, ira-conflicts.o, ira-color.o,
        ira-emit.o): New entries.

        * passes.c (pass_ira): New pass.

        * reload1.c (alter_reg): Add a new parameter.
        (pseudo_reg_compare): New function.
        (reload): Sort pseudos for IRA.  Call alter_reg with the
        additional parameter.
        (count_spilled_pseudo): New variable freq.  Use it.
        (alter_reg): Add code for IRA.
        (eliminate_regs_1, finish_spills, emit_input_reload_insns,
        delete_output_reload): Use additional parameter for alter_reg.
        (finish_spills, emit_input_reload_insns, delete_output_reload):
        Call mark_allocation_change.
        (finish_spills): Call retry_ira_color.
        
        * doc/invoke.texi: Describe new options -fira,
        -fira-biased-coloring, and -fira-algorithm.
        
        * doc/passes.texi: Decribe IRA.

        * doc/tm.texi:  Decribe macro IRA_COVER_CLASSES.
        
        * config/sparc/sparc.h (IRA_COVER_CLASSES): New macro.

        * config/i386/i386.h (IRA_COVER_CLASSES): Ditto.

        * config/ia64/ia64.h (IRA_COVER_CLASSES): Ditto.

        * config/rs6000/rs6000.h (IRA_COVER_CLASSES): Ditto.
        
        Richard Henderson  <rth@redhat.com>

        * tree-pass.h (pass_lower_subreg): New external definition.
        * toplev.h (flag_lower_subreg): New external definition.
        * rtl.def (CONCATN): New rtl expression.
        * dwarf2out.c (concatn_loc_descriptor): New function.
        (loc_descriptor): Process CONCATN.
        * timevar.def (TV_LOWER_SUBREG): New definition.
        * emit-rtl.c (gen_reg_rtx_offset): New function.
        (gen_lowpart_common): Process CONCATN.
        * simplify-rtx.c (simplify_subreg): Process CONCATN.
        * common.opt (flower-subreg): New options.
        * rtl.h (gen_reg_rtx_offset): New external definition.
        * Makefile.in (OBJS-common): Add lower-subreg.o.
        (lower-subreg.o): New entry.
        * passes.c (pass_lower_subreg): Add new pass.
        * lower-subreg.c: New file.
        
2008-03-28  Rafael Espindola  <espindola@google.com>

        * fold-const.c (tree_unary_nonnegative_warnv_p): Make it public.
        (tree_binary_nonnegative_warnv_p): Make it public.
        (tree_single_nonnegative_warnv_p): Make it public.
        (tree_invalid_nonnegative_warnv_p): Make it public.
        (tree_unary_nonzero_warnv_p): Make it public.
        (tree_binary_nonzero_warnv_p): Make it public
        (tree_single_nonzero_warnv_p): Make it public.
        * tree-vrp.c (vrp_evaluate_conditional_warnv_with_ops): New function.
        (extract_range_from_binary_expr): Split the expr argument.
        (extract_range_from_unary_expr): Split the expr argument.
        (extract_range_from_comparison): Split the expr argument.
        (extract_range_from_expr): Use the new aux functions.
        (vrp_evaluate_conditional_warnv): Use
        vrp_evaluate_conditional_warnv_with_ops.
        * tree.h (tree_unary_nonzero_warnv_p): Declare.
        (tree_binary_nonzero_warnv_p): Declare.
        (tree_single_nonzero_warnv_p): Declare.
        (tree_expr_nonzero_warnv_p): Declare.
        (tree_unary_nonnegative_warnv_p): Declare.
        (tree_binary_nonnegative_warnv_p): Declare.
        (tree_single_nonnegative_warnv_p): Declare.
        (tree_invalid_nonnegative_warnv_p): Declare.

2008-03-28  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/30317
        PR tree-optimization/30911
        PR tree-optimization/34793
        * tree-vrp.c (set_and_canonicalize_value_range): New function.
        (struct assert_locus_d): New member EXPR.
        (register_new_assert_for): Add EXPR parameter to support
        ASSERT_EXPR <name, expr OP limit>.
        (register_edge_assert_for_1): Adjust callers.
        (find_assert_locations): Likewise.
        (process_assert_insertions_for): Build condition from
        expression.
        (extract_range_from_assert): Handle ASSERT_EXPRs
        of the form ASSERT_EXPR <name, expr OP limit>.
        (register_edge_assert_for_2): New helper registering
        asserts for comparisons.  Recognize range tests of the form
        (unsigned)i - CST1 OP CST2.
        (register_edge_assert_for_1): Use it.
        (register_edge_assert_for): Likewise.
        (needs_overflow_infinity): Integer sub-types
        do not need overflow infinities.
        (vrp_val_is_max): The extreme values of integer sub-types
        are those of the base type.
        (vrp_val_is_min): Likewise.
        * tree.def (ASSERT_EXPR): Document extra allowed conditional
        expressions.

2008-03-28  Nick Clifton  <nickc@redhat.com>

        * config/mn10300/mn10300.c (mn10300_secondary_reload_class):
        Return GENERAL_REGS for stack adjustment reloads.

2008-03-28  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR target/31334
        * config/rs6000/rs6000.c (rs6000_expand_vector_init): Create a
        const_vector when all the vectors are constant.

2008-03-27  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.c (gen_float_relational): Handle unordered
        comparisons.
        * config/xtensa/xtensa.md (any_cond): Add unordered comparisons.
        (any_scc_sf): Add uneq, unlt, unle and unordered operators.
        (scc_sf): New.
        (s<code>_sf): Use new scc_sf attribute for opcode names.

2008-03-27  Tom Tromey  <tromey@redhat.com>

        * doc/sourcebuild.texi, doc/install.texi, configure, aclocal.m4,
        configure.ac, Makefile.in, config/t-darwin, config/m32c/t-m32c,
        config/spu/t-spu-elf, config/i386/t-interix,
        config/i386/t-cygming, config/i386/x-i386, config/i386/t-cygwin,
        config/i386/x-darwin, config/i386/x-mingw32,
        config/i386/t-netware, config/i386/x-cygwin, config/i386/t-nwld,
        config/sh/t-sh, config/sh/t-symbian, config/x-linux,
        config/t-sol2, config/x-hpux, config/x-darwin, config/ia64/t-ia64,
        config/x-solaris, config/t-vxworks, config/m68k/t-uclinux,
        config/rs6000/x-rs6000, config/rs6000/x-darwin64,
        config/rs6000/x-darwin, config/rs6000/t-rs6000,
        config/score/t-score-elf, config/arm/t-strongarm-pe,
        config/arm/t-pe, config/arm/t-arm, config/arm/t-wince-pe,
        config/v850/t-v850, config/v850/t-v850e, config/bfin/t-bfin-linux:
        Revert automatic dependency patch.

2008-03-27  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/35657
        * config/i386/i386.c (ix86_function_arg_boundary): Align
        decimal floating point to its natural boundary.

2008-03-27  Richard Guenther  <rguenther@suse.de>

        PR middle-end/35716
        * fold-const.c (fold_comparison): Restrict distinct decl
        comparison folding to VAR_DECLs and PARM_DECLs.  Do not
        solely rely on operand_equal_p.

2008-03-27  Richard Guenther  <rguenther@suse.de>

        PR c/32511
        * c-common.c (handle_weak_attribute): Reject combination of
        weak and inline.

2008-03-27  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/32810
        * tree-ssa-ccp.c (get_symbol_constant_value): Strip useless
        conversions from DECL_INITIAL.
        (fold_const_aggregate_ref): Likewise from constructor elements.

2008-03-27  Zdenek Dvorak  <ook@ucw.cz>

        * tree-affine.h (aff_combination_expand): Declare.
        (get_inner_reference_aff): Likewise.
        * tree-affine.c (aff_combination_expand): Split out from
        tree_to_aff_combination_expand.
        (get_inner_reference_aff): New function.
        * tree-parloops.c (loop_parallel_p): Free vectorizer info.
        * tree-ssa-loop-im.c: Include tree-affine.h and pointer-set.h.
        (struct lim_aux_data): sm_done field removed.
        (mem_ref_loc_p, mem_ref_locs_p): New types.
        (struct mem_ref): Added id, stored, accesses_in_loop,
        indep_loop, dep_loop, indep_ref, dep_ref fields.
        Removed is_stored, locs and next fields.
        (memory_accesses): New variable.
        (movement_possibility): Do not allow moving statements
        that store to memory.
        (outermost_indep_loop, simple_mem_ref_in_stmt, mem_ref_in_stmt):
        New functions.
        (determine_max_movement): For statements with memory references,
        find the outermost loop in that the reference is independent.
        (move_computations_stmt): Mark the virtual operands for
        renaming.
        (memref_free, mem_ref_alloc, mem_ref_locs_alloc, mark_ref_stored,
        gather_mem_refs_stmt, gather_mem_refs_in_loops, vtoe_hash, vtoe_eq,
        vtoe_free, record_vop_access, get_vop_accesses, get_vop_stores,
        add_vop_ref_mapping, create_vop_ref_mapping_loop,
        create_vop_ref_mapping, analyze_memory_references,
        cannot_overlap_p, mem_refs_may_alias_p, rewrite_mem_ref_loc,
        get_all_locs_in_loop, ref_always_accessed_p,
        refs_independent_p, record_indep_loop, ref_indep_loop_p_1,
        ref_indep_loop_p, can_sm_ref_p, find_refs_for_sm,
        store_motion_loop, store_motion): New functions.
        (struct vop_to_refs_elt): New type.
        (record_mem_ref_loc, free_mem_ref_locs, rewrite_mem_refs,
        memref_hash, memref_eq, hoist_memory_references): Rewritten.
        (schedule_sm): Replaced by...
        (execute_sm): ... this.
        (determine_lsm_ref, hoist_memory_references,
        loop_suitable_for_sm, gather_mem_refs_stmt, gather_mem_refs,
        find_more_ref_vops, free_mem_ref, free_mem_refs,
        determine_lsm_loop, determine_lsm): Removed.
        (tree_ssa_lim_finalize): Free data structures used by store
        motion.
        (tree_ssa_lim): Call analyze_memory_references.  Use
        store_motion instead of determine_lsm.

2008-03-27  Paolo Bonzini  <bonzini@gnu.org>

        * config.cc (m68hc11, m6811, m68hc12, m6812): Add usegas.h,
        rename tmake_file to m68hc11/t-m68hc11.
        (mcore): Set inhibit_libc to true.
        * config.host (alpha*-dec-*vms*): Set extra_programs.
        (interix3*): Don't use host_xmake_file.
        * configure.ac: Let config.gcc override inhibit_libc.
        * configure: Regenerate.

        * config/alpha/x-vms (EXTRA_PROGRAMS): Remove.
        * config/t-openbsd-thread: Remove commented out lines.
        
        * config/x-interix: Remove.

        * config/m68hc11/t-m68hc11-gas: Rename to...
        * config/m68hc11/t-m68hc11: ... this.  Remove T_CPPFLAGS.

        * config/mcore/t-mcore: Remove T_CFLAGS.
        * config/mcore/t-mcore-pe: Likewise.

2008-03-27  Paolo Bonzini  <bonzini@gnu.org>

        * configure.ac: Replace custom __GNU_SOURCE test with
        AC_USE_SYSTEM_EXTENSIONS.  Move it earlier.
        * aclocal.m4: Regenerate.
        * configure: Regenerate.
        * config.in: Regenerate.

2008-03-27  Richard Guenther  <rguenther@suse.de>

        * fold-const.c (target.h): Include.
        (fold_comparison): Fold comparison of addresses of decls
        that bind locally or of constants.  Consolidate address folding code.
        * tree-vrp.c (operand_less_p): Deal with non-INTEGER_CST
        results from fold_binary_to_constant.
        (compare_values_warnv): Likewise.

2008-03-27  Andrew Pinski  <pinskia@gmail.com>

        PR middle-end/35429
        * fold-const.c (fold_truthop): Check for integeral types when folding
        a == 0 && b == 0 and a != 0 || b != 0 .

2008-03-26  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.c (get_unwidened): Remove code fiddling with COMPONENT_REF.

2008-03-26  Andreas Schwab  <schwab@suse.de>

        * doc/invoke.texi: Fix use of @item vs. @itemx.

2008-03-26  Tom Tromey  <tromey@redhat.com>

        * Makefile.in (build/gensupport.o, build/print-rtl.o,
        build/read-rtl.o, build/rtl.o, build/gencondmd.o, build/genattr.o,
        build/genattrtab.o, build/genautomata.o, build/gencheck.o,
        build/gencodes.o, build/genconditions.o, build/genconfig.o,
        build/genconstants.o, build/genemit.o, build/genextract.o,
        build/genflags.o, build/genmddeps.o, build/genopinit.o,
        build/genoutput.o, build/genpeep.o, build/genrecog.o): Depend on
        options.h.

2008-03-26  Richard Guenther  <rguenther@suse.de>

        Revert
        2008-03-26  Richard Guenther  <rguenther@suse.de>

        * fold-const.c (target.h): Include.
        (fold_comparison): Fold comparison of addresses of two decls
        that bind locally.  Consolidate address folding code.

2008-03-26  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (expand_builtin_pow, fold_builtin_cabs,
        fold_builtin_sqrt, fold_builtin_cbrt, fold_builtin_logarithm,
        fold_builtin_hypot, fold_builtin_pow): Remove uses of dconst3,
        dconstsqrt2, dconstthird, dconste and/or dconst10.
        * config/i386/i386.c (ix86_emit_swsqrtsf): Likewise.
        * emit-rtl.c (dconst3, dconst10, dconstm2, dconstthird,
        dconstsqrt2, dconste): Delete.
        (init_emit_once): Likewise.  Simplify initializing dconstm1.
        Constify variable.
        * real.c (get_real_const): New.
        * real.h (dconst3, dconst10, dconstm2, dconstthird,
        dconstsqrt2, dconste): Delete.
        (real_value_const, get_real_const): New.

2008-03-26  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/cygming.h (BIGGEST_ALIGNMENT): Removed.

        * config/i386/i386.c (ix86_function_arg_boundary): Check
        BIGGEST_ALIGNMENT instead of 128.
        (setup_incoming_varargs_64): Likewise.

2008-03-26  Tom Tromey  <tromey@redhat.com>

        * Makefile.in (DEPFILES): Add missing '/'.

2008-03-26  Richard Guenther  <rguenther@suse.de>

        * fold-const.c (target.h): Include.
        (fold_comparison): Fold comparison of addresses of two decls
        that bind locally.  Consolidate address folding code.

2008-03-26  Nick Clifton  <nickc@redhat.com>

        PR target/31232
        * config/stormy16/stormy16.c (xstormy16_legitimate_address_p): Do
        not allow INT+INT as a legitimate addressing mode.

2008-03-26  Richard Guenther  <rguenther@suse.de>

        * tree-flow.h (widen_bitfield): Remove declaration.
        * tree-ssa-ccp.c (visit_assignment): Remove unneeded code.
        (widen_bitfield): Remove function.
        * tree-ssa-dom.c (record_equivalences_from_stmt): Remove unneeded
        code.

2008-03-25  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR target/31558
        * config/rs6000/rs6000-c.c (rs6000_builtin_type_compatible): Handle
        error_mark_node's.

2008-03-25  Richard Sandiford  <rsandifo@nildram.co.uk>

        PR rtl-optimization/35232
        * reload1.c (reg_reloaded_call_part_clobbered): Clarify comment.
        (forget_old_reloads_1, forget_marked_reloads): Don't clear
        reg_reloaded_call_part_clobbered here.
        (reload_regs_reach_end_p): New function.
        (reload_reg_rtx_for_input): New variable.
        (reload_reg_rtx_for_output): Likewise.
        (emit_input_reload_insns): Use reloadreg rather than rl->reg_rtx
        when reassigning a pseudo register.  Load reloadreg from 
        reload_reg_rtx_for_input, moving the mode and register
        calculation to...
        (do_input_reload): ...here.  Use the mode-adjusted reg_rtx
        instead of the original when deciding whether an input reload
        would be a no-op or whether an output reload can be deleted.
        (emit_output_reload_insns): Use the mode-adjusted reg_rtx
        when setting up new_spill_reg_store.  Load it from
        reload_reg_rtx_for_output, moving the mode and register
        calculation to...
        (do_output_reload): ...here.  Use the mode-adjusted reg_rtx
        instead of the original when deciding whether an output reload
        would be a no-op.  Do the same when modifying insn notes.
        Use rtx_equal_p instead of == to compare the registers.
        (inherit_piecemeal_p): Take a mode and two register numbers
        as argument.
        (emit_reload_insns): Clear new_spill_reg_store for every hard
        register in the reload register.  Remove spill registers
        from reg_reloaded_valid before considering whether to record
        inheritance information for them.  Use reload_reg_rtx_for_output
        instead of reg_rtx when recording output reloads.  Use
        reload_reg_rtx_for_input instead of reg_rtx when recording
        input reloads.  Set or clear reg_reloaded_call_part_clobbered
        at the same time as setting reg_reloaded_valid.
        (delete_output_reload): Add a new_reload_reg parameter and use it
        instead of rld[j].reg_rtx.
        (emit_input_reload_insns, do_input_reload, do_output_reload): Adjust
        calls accordingly.

2008-03-25  Tom Tromey  <tromey@redhat.com>

        * Makefile.in (build/gensupport.o): Depend on insn-modes.h.
        (build/genattr.o): Likewise.
        (build/genattrtab.o): Likewise.
        (build/gencodes.o): Likewise.
        (build/genconfig.o): Likewise.
        (build/genconstants.o): Likewise.
        (build/genemit.o): Likewise.
        (build/genextract.o): Likewise.
        (build/genflags.o): Likewise.

2008-03-25  Bob Wilson  <bob.wilson@acm.org>
        
        * config/xtensa/xtensa.c (xtensa_va_start): Use build_int_cst
        instead of size_int for integer types.
        (xtensa_gimplify_va_arg_expr): Likewise.  Convert index to sizetype
        to match type of MINUS_EXPR.
        
2008-03-25  Tom Tromey  <tromey@redhat.com>

        * configure: Rebuilt.
        * configure.ac (BUILD_DEPMODE): Extract CCDEPMODE from temporary
        Makefile.

2008-03-25  Tom Tromey  <tromey@redhat.com>

        * config/x-solaris (host-solaris.o): Update.
        * config/x-linux (host-linux.o): Update.
        * config/x-hpux (host-hpux.o): Update.
        * config/x-darwin (host-darwin.o): Update.
        * config/v850/t-v850e (v850-c.o): Update.
        * config/v850/t-v850 (v850-c.o): Update.
        * config/t-vxworks (vxworks.o): Update.
        * config/t-sol2 (sol2-c.o, sol2.o): Update.
        * config/t-darwin (darwin.o, darwin-c.o, darwin-driver.o): Update.
        * config/spu/t-spu-elf (spu-c.o): Update.
        (spu.o): Remove.
        * config/sh/t-symbian (sh-c.o): Update.
        (symbian.o): Update.
        * config/sh/t-sh (sh-c.o): Update.
        * config/score/t-score-elf (score7.o, score3.o): Update.
        * config/rs6000/x-rs6000 (driver-rs6000.o): Update.
        * config/rs6000/x-darwin64 (host-ppc64-darwin.o): Update.
        * config/rs6000/x-darwin (host-ppc-darwin.o): Update.
        * config/rs6000/t-rs6000 (rs6000-c.o): Update.
        (rs6000.o): Remove.
        * config/m68k/t-uclinux (generated_files): Add sysroot-suffix.h.
        * config/m32c/t-m32c (m32c-pragma.o): Update.
        * config/ia64/t-ia64 (ia64-c.o): Update.
        * config/i386/x-mingw32 (host-mingw32.o): Update.
        * config/i386/x-i386 (driver-i386.o): Update.
        * config/i386/x-darwin (host-i386-darwin.o): Update.
        * config/i386/x-cygwin (host-cygwin.o): Update.
        * config/i386/t-nwld (nwld.o): Update.
        * config/i386/t-netware (netware.o): Update.
        * config/i386/t-interix (winnt.o): Update.
        * config/i386/t-cygwin (cygwin1.o, cygwin2.o): Update.
        * config/i386/t-cygming (winnt.o, winnt-cxx.o, winnt-stubs.o,
        msformat-c.o): Update.
        * config/bfin/t-bfin-linux (generated_files): Add
        linux-sysroot-suffix.h.
        * config/arm/t-wince-pe (pe.o): Update.
        * config/arm/t-strongarm-pe (pe.o): Update.
        * config/arm/t-pe (pe.o): Update.
        * config/arm/t-arm (arm-c.o): Update.
        * doc/install.texi (Prerequisites): Require make 3.80.
        * Makefile.in: Remove .o targets.
        (CCDEPMODE, DEPDIR, depcomp, BUILD_DEPMODE): New variables.
        (OBSTACK_H, FIBHEAP_H, PARTITION_H, MD5_H, BCONFIG_H): Remove.
        (simple_generated_h, simple_generated_c): Move earlier.
        (generated_files): New variable.
        (TARGET_H, MACHMODE_H, HOOKS_H, HOSTHOOKS_DEF_H, LANGHOOKS_DEF_H,
        TARGET_DEF_H, RTL_BASE_H, RTL_H, PARAMS_H, BUILTINS_DEF, TREE_H,
        BASIC_BLOCK_H, GCOV_IO_H, COVERAGE_H, DEMANGLE_H, RECOG_H,
        ALIAS_H, EMIT_RTL_H, FLAGS_H, FUNCTION_H, EXPR_H, OPTABS_H,
        REGS_H, RA_H, RESOURCE_H, SCHED_INT_H, INTEGRATE_H, CFGLAYOUT_H,
        CFGLOOP_H, IPA_UTILS_H, IPA_REFERENCE_H, IPA_TYPE_ESCAPE_H,
        CGRAPH_H, DF_H, RESOURCE_H, DDG_H, GCC_H, GGC_H, TIMEVAR_H,
        INSN_ATTR_H, C_COMMON_H, C_PRAGMA_H, C_TREE_H, SYSTEM_H,
        PREDICT_H, DECNUM_H, MKDEPS_H, SYMTAB_H, TREE_DUMP_H,
        TREE_GIMPLE_H, TREE_FLOW_H, TREE_SSA_LIVE_H, PRETTY_PRINT_H,
        DIAGNOSTIC_H, C_PRETTY_PRINT_H, SCEV_H, LAMBDA_H, TREE_DATA_REF_H,
        VARRAY_H, TREE_INLINE_H, REAL_H, DBGCNT_H, EBIMAP_H): Remove.
        (.c.o): Remove.
        (COMPILE.base, COMPILE): New variables.
        (%.o): New pattern rule.
        (ALL_HOST_OBJS): New variable.
        (xgcc$(exeext), cpp$(exeext)): Remove extra version.o.
        (dummy-checksum.o, cc1-checksum.o): Remove.
        (DRIVER_SHLIB): New variable.
        (DRIVER_DEFINES): Use it.
        (gencondmd.c): Move out of build/.
        (s-conditions): Update.
        (BUILDCOMPILE.base, BUILDCOMPILE): New variables.
        (ALL_BUILD_OBJS): Likewise.
        (build/%.o): Use BUILDCOMPILE.
        (build/ggc-none.o, build/ggc-none.o, build/min-insn-modes.o,
        build/print-rtl.o, build/read-rtl.o, build/rtl.o, build/vec.o,
        build/gencondmd.o, build/genattrtab.o, build/genautomata.o,
        build/gencheck.o, build/gencodes.o, build/genconditions.o,
        build/genconfig.o, build/genconstants.o, build/genemit.o,
        build/genextract.o, build/genflags.o, build/genmddeps.o,
        build/genopinit.o, build/genoutput.o, build/genpeep.o,
        build/genpreds.o, build/genrecog.o, build/gcov-iov.o,
        build/gen-protos.o, build/scan.o, build/fix-header.o,
        build/scan-decls.o): Simplify.
        (collect2.o, c-opts.o, gcc.o, gccspec.o, gcc-options.o,
        cppdefault.o, protoize.o, unprotoize.o, intl.o, version.o,
        prefix.o, toplev.o): Reduce to variable setting.
        (libbackend.o): Use COMPILE.  Remove most dependencies.  Move later.
        ($(out_object_file), gcc-options.o): New targets.
        ($(ALL_HOST_OBJS)): New target.  Include dependency files.
        * configure: Rebuilt.
        * configure.ac: Call ZW_CREATE_DEPDIR, ZW_PROG_COMPILER_DEPENDENCIES.
        * doc/sourcebuild.texi (Front End Directory): Document new variable.

2008-03-25  Douglas Gregor  <doug.gregor@gmail.com>

        * c-common.c (c_sizeof_or_alignof_type): If we're not allowed to
        complain when we hit an error, return ERROR_MARK_NODE.

2008-03-25  Naveen.H.S  <naveen.hs@kpitcummins.com>

        * config/sh/constraints.md (Pso, Psz): New constraints.
        * config/sh/sh.c (print_operand): Add %V and %W operand codes.
        * config/sh/sh.md (*andsi3_bclr, *iorsi3_bset): New insns.

2008-03-25  Naveen.H.S  <naveen.hs@kpitcummins.com>

        * config/sh/sh.c (sh_expand_t_scc): Emit movrt for SH2A if possible.
        * config/sh/sh.md (xorsi3_movrt, movrt): New insns.

2008-03-25  Naveen.H.S  <naveen.hs@kpitcummins.com>

        * config/sh/sh.md (prefetch): Add condition for SH2A target.
        (prefetch_sh2a): New.   

2008-03-25  Jayant Sonar  <Jayant.sonar@kpitcummins.com>
            Naveen.H.S  <naveen.hs@kpitcummins.com>

        * config/sh/constraints.md (I28): New constraint.
        * config/sh/sh.c (broken_move): Add support for movi20s.
        * config/sh/sh.md (movsi_ie): Add the alternative for movi20s.

2008-03-25  Anil Paranjape  <anil.paranjape@kpitcummins.com>
            Jayant Sonar  <Jayant.sonar@kpitcummins.com>
            Naveen.H.S  <naveen.hs@kpitcummins.com>

        * config/sh/sh.c (SH_ATTRIBUTES): Define.
        (SYMBOL_FLAG_FUNCVEC_FUNCTION): Define.
        (print_operand): Handle resbank in %@ operand code.
        (sh_encode_section_info): New.
        (push_regs): Add conditions for resbank.
        (sh_expand_epilogue): Likewise.
        (sh_insert_attributes): Likewise.
        (sh_attribute_table): Likewise.
        (sh_handle_resbank_handler_attribute): New.
        (sh2a_handle_function_vector_handler_attribute): New.
        (sh2a_is_function_vector_call): New.
        (sh2a_get_function_vector_number): New.
        (sh2a_function_vector_p): New.
        (sh_cfun_resbank_handler_p): New.
        * config/sh/sh.md (calli): Emit jsr/n if possible.
        (calli_tbr_rel): New.
        (calli_pcrel): Emit jsr/n if possible.
        (return_i): Emit rts/n if possible.
        (call_valuei_tbr_rel): New.
        (call_valuei_pcrel): Add condition for SH2A target.
        (call_value): Likewise.
        * config/sh/sh-protos.h (sh_cfun_resbank_handler_p): Declare.
        (sh2a_get_function_vector_number): Likewise.
        (sh2a_is_function_vector_call): Likewise.
        * doc/extend.texi: Document TBR relative addressing of SH2A.
        (resbank): Add description for SH2A.

2008-03-24  Richard Guenther  <rguenther@suse.de>

        PR c/22371
        * gimplify.c (gimplify_modify_expr): For frontend type-correct
        pointer assignments change conversions according to middle-end rules.
        (gimplify_modify_expr_rhs): Deal with NULL TARGET_EXPR_INITIAL.
        * configure.ac: Include type checking in yes.
        * configure: Regenerate.

2008-03-24  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * diagnostic.c (diagnostic_count_diagnostic): Delete.
        (diagnostic_report_diagnostic): Update. Handle ICEs here.
        
2008-03-24  Nathan Sidwell  <nathan@codesourcery.com>

        * gthr-vxworks.h (UNUSED): Define.

2008-03-23  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.h (STATIC_CHAIN_REGNUM): Use R10_REG and
        CX_REG.

2008-03-23  Zuxy Meng <zuxy.meng@gmail.com>

        * doc/extend.texi (Function Attributes): Add missing comma in the
        example of the "alloc_size" attribute.
        
2008-03-23  Uros Bizjak  <ubizjak@gmail.com>

        Revert:
        2008-03-05  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386-modes.def: Use 4 byte alignment on DI for
        32bit host.

        2008-03-19  Uros Bizjak  <ubizjak@gmail.com>

        PR target/35496
        * stor-layout.c (update_alignment_for_field): Set minimum alignment
        of the underlying type of a MS bitfield layout to the natural
        alignment of the type.

        2008-03-22  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (assign_386_stack_local): Align DImode slots
        to their natural alignment to avoid store forwarding stalls.

2008-03-22  Richard Guenther  <rguenther@suse.de>

        * tree-cfg.c (verify_expr): Recurse again for invariant addresses.
        For PHI nodes verify the address is invariant.
        * tree-ssa-ccp.c (ccp_decl_initial_min_invariant): Remove.
        (get_symbol_constant_value): Use is_gimple_min_invariant.
        (maybe_fold_stmt_indirect): Likewise.

2008-03-22  Richard Sandiford  <rsandifo@nildram.co.uk>

        PR rtl-optimization/33927
        * Makefile.in (dse.o): Depend on $(TM_P_H).
        * expr.h (extract_low_bits): Declare.
        * expmed.c (extract_low_bits): New function.
        * rtlhooks.c (gen_lowpart_general): Generalize SUBREG handling.
        * dse.c: Include tm_p.h.
        (find_shift_sequence): Remove the read_reg argument and return the
        read value.  Emit the instructions instead of returning them.
        Iterate on new_mode rather than calculating it each time.
        Check MODES_TIEABLE_P.  Use simplify_gen_subreg to convert the
        source to NEW_MODE and extract_low_bits to convert the shifted
        value to READ_MODE.
        (replace_read): Allow the load and store to have different mode
        classes.  Use extract_low_bits when SHIFT == 0.  Create the shift
        or extraction instructions before trying the replacement.  Update
        dump-file code accordingly, avoiding use of REGNO (store_info->rhs).

2008-03-22  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (assign_386_stack_local): Align DImode slots
        to their natural alignment to avoid store forwarding stalls.

2008-03-21  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR target/27946
        * config/rs6000/rs6000.md (floatdidf2): Discouraging fprs and
        encouraging but not allowing gprs for input;
        change the input constraint to !f#r.
        (fix_truncdfdi2): Discouraging fprs and encouraging but not allowing
        gprs for output;
        change the output constraint to !f#r.

2008-03-21  Uros Bizjak  <ubizjak@gmail.com>

        PR target/13958
        * config/i386/i386.md ("*floatunssi<mode2>_1"): New pattern with
        corresponding post-reload splitters.
        ("floatunssi<mode>2"): Expand to unsigned_float x87 insn pattern
        when x87 FP math is selected.
        * config/i386/i386-protos.h (ix86_expand_convert_uns_sixf_sse):
        New function prototype.
        * config/i386/i386.c (ix86_expand_convert_uns_sixf_sse): New
        unreachable function to ease macroization of insn patterns.

2008-03-21  Martin Jambor  <mjambor@suse.cz>

        * tree-data-ref.c (dump_data_dependence_relation): Avoid data
        reference dumps if ddr is NULL or dependence is unknown.

2008-03-20  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/linux-atomic.asm (ATOMIC_TEST_AND_SET): Take
        unsigned extension into account.
        (ATOMIC_COMPARE_AND_SWAP): Likewise.
        (ATOMIC_FETCH_AND_OP, ATOMIC_FETCH_AND_COMBOP): Likewise.
        Do computations on a scratch register.

2008-03-21  Richard Guenther  <rguenther@suse.de>

        * tree-scalar-evolution.c (chrec_contains_symbols_defined_in_loop):
        Use is_gimple_min_invariant instead of TREE_INVARIANT.
        * tree-ssa-loop-ivopts.c (force_expr_to_var_cost): Likewise.
        * tree-ssa-dom.c (record_equality): Likewise.
        * tree-inline.c (copy_body_r): Likewise.
        * tree-ssa-pre.c (make_values_for_stmt): Remove test for
        TREE_INVARIANT.

2008-03-20  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.c (split_branches): Pass zero to redirect_jump
        as 'delete_unused' argument.

2008-03-20  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Remove
        special casing of constant qualifiers.
        * tree-ssa.c (useless_type_conversion_p_1): Instead do not
        care about them in general.
        * tree-ssa-ccp.c (ccp_fold): Addresses are constant or not
        regardless of their type.
        (fold_stmt_r): Forcefully fold *& if we end up with that.

2008-03-20  Paul Brook  <paul@codesourcery.com>

        * config.gcc (arm*-*-uclinux*): Remove duplicate arm/uclinux-elf.h.
        * config/arm/uclinux-eabi.h (SUBTARGET_EXTRA_LINK_SPEC): Add extra
        linker flags.
        * config/arm/bpabi.h (SUBTARGET_EXTRA_LINK_SPEC): Provide default
        definition.
        (LINK_SPEC): Use SUBTARGET_EXTRA_LINK_SPEC.
        * config/arm/unwind-arm.h (_Unwind_decode_target2): Add uClinux.

2008-03-20  Volker Reichelt  <v.reichelt@netcologne.de>

        * common.opt (Wmudflap): New option.
        * tree-mudflap.c (mf_xform_derefs_1): Guard warning by OPT_Wmudflap.
        (mx_register_decls): Likewise.
        (mudflap_finish_file): Likewise.
        * doc/invoke.texi: Document -Wno-mudflap.

2008-03-20  Kai Tietz  <kai.tietz@onevision.com>

        * c-format.c (replace_format_name_to_system_name): New.
        (cmp_attribs): New.
        (convert_format_name_to_system_name): New.
        (decode_format_attr): Add use of convert_format_name_to_system_name.
        (format_types_orig): Add gnu_ prefix to names.
        (check_format_info_main): Special treating of \0 escaped names for
        supporting multi-character format specifiers as I32, I64.
        (TARGET_OVERRIDES_FORMAT_ATTRIBUTES): Use of user defined attributes.
        (gnu_target_overrides_format_attributes): New.
        * c-format.h: Add structure target_ovr_attr to hold
        system specific formatter names.
        * config.gcc: Add for x86&x86_64 cygwin and mingw32 targets the
        msformat-c.o file to c_target_objs and cxx_target_objs.
        * config/i386/mingw32.h (TARGET_OVERRIDES_FORMAT_ATTRIBUTES): New.
        (TARGET_OVERRIDES_FORMAT_ATTRIBUTES_COUNT): New.
        (TARGET_N_FORMAT_TYPES): New.
        * config/i386/msformat-c.c: New.
        * config/i386/t-cygming: Add build rule for msformat-c.o.
        * doc/extend.texi: Add new format names gnu_* and ms_* and
        further details.
        * doc/tm.texi: (TARGET_OVERRIDES_FORMAT_ATTRIBUTES): New.

2008-03-20  Ira Rosen  <irar@il.ibm.com>

        * doc/invoke.texi (-O3): Add -ftree-vectorize to the list of
        optimizations turned on under -O3.
        (ftree-vectorize): Add that the flag is turned on with -O3.

2008-03-20  Ben Elliston  <bje@au.ibm.com>

        * regmove.c (try_auto_increment): Fix spelling error in comment.
        * final.c (final_scan_insn): Likewise.

2008-03-20  Uros Bizjak  <ubizjak@gmail.com>

        PR target/14552
        * config/i386/mmx.md (*mov<mode>_internal_rex64"): Adjust register
        allocator preferences for "y" and "r" class registers.
        ("*mov<mode>_internal"): Ditto.
        ("*movv2sf_internal_rex64"): Ditto.
        ("*movv2sf_internal"): Ditto.

2008-03-19  Michael Matz  <matz@suse.de>

        PR middle-end/35616
        * calls.c (expand_call): Check overlap of arguments with call
        address for sibcalls.

2008-03-19  Uros Bizjak  <ubizjak@gmail.com>

        PR target/35496
        * stor-layout.c (update_alignment_for_field): Set minimum alignment
        of the underlying type of a MS bitfield layout to the natural
        alignment of the type.

2008-03-19  Jan Hubicka  <jh@suse.cz>

        PR other/35094
        * toplev.c (decode_d_option): Handle all CPP flags.
        * tree-vrp.c: Update tree_pass descriptors.
        * regrename.c: Update tree_pass descriptors.
        * fwprop.c: Update tree_pass descriptors.
        * doc/invoke.texi: Remove documentation of dropped -d? flags.
        * tree-into-ssa.c: Update tree_pass descriptors.
        * tree-dump.c: Update tree_pass descriptors.
        * tree-complex.c: Update tree_pass descriptors.
        * tree-dump.h: Update tree_pass descriptors.
        * see.c: Update tree_pass descriptors.
        * cgraphbuild.c: Update tree_pass descriptors.
        * tracer.c: Update tree_pass descriptors.
        * tree-loop-distribution.c: Update tree_pass descriptors.
        * cgraph.c: Update tree_pass descriptors.
        * postreload-gcse.c: Update tree_pass descriptors.
        * postreload.c: Update tree_pass descriptors.
        * tree-ssa-loop-ch.c: Update tree_pass descriptors.
        * tree-tailcall.c: Update tree_pass descriptors.
        * tree-pass.h (tree_opt_pass): Rename to ...
        (opt_pass) ... this one; add "type" field and remove letter field.
        (gimple_opt_pass, rtl_opt_pass, simple_ipa_opt_pass): New.
        (execute_pass_list, execute_ipa_pass_list, all_passes, all_ipa_passes,
        all_lowering_passes): Update declaration.
        * ipa-cp.c: Update tree_pass descriptors.
        * final.c: Update tree_pass descriptors.
        * omp-low.c: Update tree_pass descriptors.
        * tree-ssa-dse.c: Update tree_pass descriptors.
        * ipa-reference.c: Update tree_pass descriptors.
        * tree-ssa-uncprop.c: Update tree_pass descriptors.
        * auto-inc-dec.c: Update tree_pass descriptors.
        * reorg.c: Update tree_pass descriptors.
        * cgraphunit.c: Update tree_pass descriptors.
        * tree-ssa-copyrename.c: Update tree_pass descriptors.
        * tree-ssa-ccp.c: Update tree_pass descriptors.
        * df-core.c: Update tree_pass descriptors.
        * mode-switching.c: Update tree_pass descriptors.
        * tree-nomudflap.c: Update tree_pass descriptors.
        * modulo-sched.c: Update tree_pass descriptors.
        * ipa-pure-const.c: Update tree_pass descriptors.
        * cse.c: Update tree_pass descriptors.
        * web.c: Update tree_pass descriptors.
        * tree-stdarg.c: Update tree_pass descriptors.
        * tree-ssa-math-opts.c: Update tree_pass descriptors.
        * tree-ssa-dom.c: Update tree_pass descriptors.
        * tree-nrv.c: Update tree_pass descriptors.
        * tree-ssa-alias.c: Update tree_pass descriptors.
        * loop-init.c: Update tree_pass descriptors.
        * gimple-low.c: Update tree_pass descriptors.
        * ipa-inline.c: Update tree_pass descriptors.
        * tree-ssa-sink.c: Update tree_pass descriptors.
        * global.c: Update tree_pass descriptors.
        * ifcvt.c: Update tree_pass descriptors.
        * jump.c: Update tree_pass descriptors.
        * predict.c: Update tree_pass descriptors.
        * tree-ssa-loop.c: Update tree_pass descriptors.
        * recog.c: Update tree_pass descriptors.
        * dse.c: Update tree_pass descriptors.
        * tree-ssa-ifcombine.c: Update tree_pass descriptors.
        * tree-eh.c: Update tree_pass descriptors.
        * regmove.c: Update tree_pass descriptors.
        * local-alloc.c
        * function.c: Update tree_pass descriptors.
        * tree-vectorizer.c: Update tree_pass descriptors.
        * gcse.c: Update tree_pass descriptors.
        * ipa-type-escape.c: Update tree_pass descriptors.
        * tree-if-conv.c: Update tree_pass descriptors.
        * init-regs.c: Update tree_pass descriptors.
        * ipa.c: Update tree_pass descriptors.
        * tree-ssa-phiopt.c: Update tree_pass descriptors.
        * rtl-factoring.c: Update tree_pass descriptors.
        * lower-subreg.c: Update tree_pass descriptors.
        * bt-load.c: Update tree_pass descriptors.
        * tree-dfa.c: Update tree_pass descriptors.
        * except.c: Update tree_pass descriptors.
        * emit-rtl.c: Update tree_pass descriptors.
        * cfgexpand.c: Update tree_pass descriptors.
        * tree-cfgcleanup.c: Update tree_pass descriptors.
        * cfgcleanup.c: Update tree_pass descriptors.
        * tree-ssa-pre.c: Update tree_pass descriptors.
        * tree-sra.c: Update tree_pass descriptors.
        * tree-mudflap.c: Update tree_pass descriptors.
        * tree-ssa-copy.c: Update tree_pass descriptors.
        * cfglayout.c: Update tree_pass descriptors.
        * tree-ssa-forwprop.c: Update tree_pass descriptors.
        * tree-ssa-dce.c: Update tree_pass descriptors.
        * tree-ssa.c: Update tree_pass descriptors.
        * regclass.c: Update tree_pass descriptors.
        * integrate.c: Update tree_pass descriptors.
        * tree-optimize.c: Update tree_pass descriptors.
        * tree-ssa-phiprop.c: Update tree_pass descriptors.
        * tree-object-size.c: Update tree_pass descriptors.
        * combine.c: Update tree_pass descriptors.
        * tree-outof-ssa.c: Update tree_pass descriptors.
        * bb-reorder.c: Update tree_pass descriptors.
        * stack-ptr-mod.c: Update tree_pass descriptors.
        * var-tracking.c: Update tree_pass descriptors.
        * tree-profile.c: Update tree_pass descriptors.
        * tree-vect-generic.c: Update tree_pass descriptors.
        * reg-stack.c: Update tree_pass descriptors.
        * sched-rgn.c: Update tree_pass descriptors.
        * tree-ssa-structalias.c: Update tree_pass descriptors.
        * tree-cfg.c: Update tree_pass descriptors.
        * passes.c (current_pass): Update declaration.
        (finish_optimization_passes): Update.
        (all_passes, all_ipa_passes, all_lowering_passes): Update declaration.
        (register_one_dump_file, register_dump_files_1, next_pass_1):
        Update arguments.
        (init_optimization_passes): Update handling of new types.
        (execute_one_pass, execute_pass_list, execute_ipa_pass_list): Update.
        * ipa-struct-reorg.c: Update tree_pass descriptors.
        * tree-ssa-reassoc.c: Update tree_pass descriptors.
        * combine-stack-adj.c: Update tree_pass descriptors.
        * cfgrtl.c: Update tree_pass descriptors.
        * dce.c: Update tree_pass descriptors.
        * tree-ssanames.c: Update tree_pass descriptors.

2008-03-19  Richard Guenther  <rguenther@suse.de>

        PR middle-end/35609
        * tree-ssa.c (walk_data): New structure.
        (warn_uninitialized_var): If not always_executed warn with "maybe"
        instead of "is".
        (execute_early_warn_uninitialized): Compute post-dominators.
        Initialize always_executed before processing each basic block.

2008-03-18  Mikulas Patocka  <mikulas@artax.karlin.mff.cuni.cz>

        PR target/35504
        * config/i386/i386.c (x86_this_parameter): Calculate correct location
        of "this" pointer when "regparm = N" or "fastcall" is in effect.

2008-03-18  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * doc/include/texinfo.tex: Update to version 2008-03-17.10.

2008-03-18  Paolo Bonzini  <bonzini@gnu.org>

        * expr.c (store_expr): Assume lang_hooks.reduce_bit_field_operations
        is true.
        (expand_expr_real_1) <REDUCE_BIT_FIELD>: Don't look at ignore.
        (expand_expr_real_1): Assume lang_hooks.reduce_bit_field_operations
        is true.  Add "&& !ignore" condition to reduce_bit_field.  Modify
        target after ignore has been set, and move there also the commputation
        of subtarget and original_target.
        * langhooks-def.h (LANG_HOOKS_REDUCE_BIT_FIELD_OPERATIONS): Delete.
        (LANG_HOOKS_INITIALIZER): Remove it.
        * langhooks.h (struct lang_hooks): Remove reduce_bit_field_operations.

2008-03-18  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-sccvn.c (visit_reference_op_load): If the lookup
        found an expression with constants, note that in the VN for the lhs.
        * tree-ssa-pre.c (eliminate): Visit COND_EXPR statements and
        fold them to constants if possible.  Run cleanup_cfg if done so.
        (execute_pre): Return todo.
        (do_pre): Likewise.
        (execute_fre): Likewise.
        * tree-ssa-forwprop.c (can_propagate_from): Allow propagation
        of constants.
        (get_prop_source_stmt): Look through pointer conversions.

2008-03-18  Jan Hubicka  <jh@suse.cz>

        * tree-pretty-print.c: Include predict.h.
        (dump_generic_node): Dump predictor.
        * tree.h (PREDICT_EXPR_OUTCOME, PREDICT_EXPR_PREDICTION): Update.
        * tree-gimple.c (is_gimple_stmt): Add PREDICT_EXPR.
        * gimple-low.c (lower_stmt): Likewise.
        * expr.c (expand_expr_real): Likewise.
        * predict.c (tree_bb_level_predictions): Use PREDICT_EXPRs and remove
        them.
        (build_predict_expr, build_predict_expr): New.
        * predict.h (predictor_name, build_predict_expr): Update.
        * c-typeck.c (c_finish_bc_stmt): Add prediction.
        * gimplify.c (gimplify_expr): Add PREDICT_EXPR.
        * predict.def (PRED_CONTINUE): Update hitrate.
        * tree.def (PREDICT_EXPR): Define.
        * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Mark PREDICT_EXPR;
        do not handle BIND_EXPR.
        * tree-inline.c (estimate_num_insns_1): PREDICT_EXPR is free.
        * tree-cfg.c (verify_gimple_stmt): PREDICT_EXPR is valid.
        * tree-ssa-operands.c (get_expr_operands): PREDICT_EXPR takes no
        operands.

2008-03-18  Michael Matz  <matz@suse.de>

        * gcov-io.h (__gcov_merge_ior, __gcov_fork): Mark hidden.

2008-03-18  Richard Guenther  <rguenther@suse.de>

        * tree-gimple.h (is_gimple_invariant_address): Declare.
        (is_gimple_constant): Likewise.
        * tree-gimple.c (is_gimple_constant): New function.
        (is_gimple_invariant_address): Likewise.
        (is_gimple_min_invariant): Implement in terms of is_gimple_constant
        and is_gimple_invariant_address.
        * tree-ssa-loop-niter.c (expand_simple_operations): Revert
        previous change.
        * tree-data-ref.c (get_references_in_stmt): A SSA_NAME is not
        an addressable base.

2008-03-18  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/35611
        * gimplify.c (gimplify_expr): Gimplify second operand of
        OMP_ATOMIC_LOAD.

2008-03-17  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/19637
        * fold-const.c (fold_unary): Remove restrictions of removing
        intermediate pointer-conversions (P2)(P1)P0.
        * tree-ssa-ccp.c (maybe_fold_stmt_addition): Recover from
        conversion to void pointer.
        (get_maxval_strlen): Handle addresses of the form &(*p)[0].

2008-03-16  James E. Wilson  <wilson@tuliptree.org>

        PR debug/31510
        * dbxout.c (dbxout_expand_expr, case VAR_DECL): Return NULL for
        emulated thread local variables.

2008-03-16  Richard Guenther  <rguenther@suse.de>

        PR middle-end/35607
        * tree-ssa-loop-niter.c (expand_simple_operations): Do not
        expand TREE_INVARIANT operations that are not gimple invariant.

2008-03-16  Hans-Peter Nilsson  <hp@axis.com>

        * doc/extend.texi (Alignment): Say that the ABI controls
        the __alignof__ for non-strict-alignment targets rather
        than being a recommendation.

2008-03-15  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_unwind_emit): Suppress unused unwinding
        annotations.
        (arm_output_fn_unwind): Mark functions that can not be unwound.

2008-03-15  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_rtx_costs_1): Add costs for ARMv6 value
        extension instructions.

2008-03-15  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-ccp.c (ccp_fold): Also read from constant values
        and fold constant aggregate refs.
        (fold_const_aggregate_ref): Handle string constants
        and constructors in ARRAY_REFs.  Handle INDIRECT_REF.
        (evaluate_stmt): Simplify now that ccp_fold folds constant
        aggregate refs.

2008-03-15  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.md (insv): Use gen_insv_t2 and gen_insv_zero.
        (extzv): Use gen_extzv_t2.
        (insv_t2, insv_zero, extv, extzv_t2): New patterns.

2008-03-15  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-ccp.c (get_symbol_constant_value): Export.
        (fold_const_aggregate_ref): Likewise.
        (get_value): Return NULL if we don't have any values.
        (ccp_finalize): Set const_val to NULL after freeing it.
        * tree-flow.h (get_symbol_constant_value): Declare.
        (fold_const_aggregate_ref): Likewise.
        * tree-ssa-sccvn.c (try_to_simplify): Use them.

2008-03-15  Richard Guenther  <rguenther@suse.de>

        PR middle-end/35593
        * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Make sure
        to not produce negative array indices if not allowed.  Add
        parameter to indicate that.
        (maybe_fold_offset_to_component_ref): Allow negative array
        indices only for the first member of a structure.
        (maybe_fold_offset_to_reference): Allow negative array indices.
        (maybe_fold_stmt_addition): Likewise.

2008-03-15  Bjoern Haase  <bjoern.m.haase@web.de>
            Anatoly Sokolov <aesok@post.ru>

        * gcc/gcc/config/avr/avr.c (avr_arch_types): Add avr6 entry.
        (avr_arch): Add ARCH_AVR6.
        (avr_mcu_types): Add 'atmega2560' and 'atmega2561' entry.
        (initial_elimination_offset): Initialize and use 'avr_pc_size' 
        instead of fixed value 2.
        (print_operand_address): Use gs() asm specifier instead of pm().
        (avr_assemble_integer): (Ditto.).
        (avr_output_addr_vec_elt): (Ditto.).
        (print_operand): Handle "!" code.
        * gcc/gcc/config/avr/avr.h (TARGET_CPU_CPP_BUILTINS): Add 
        __AVR_3_BYTE_PC__, __AVR_2_BYTE_PC__ and __AVR_HAVE_JMP_CALL__.
        (AVR_HAVE_EIJMP_EICALL): Define.
        (AVR_3_BYTE_PC): Redefine.
        (AVR_2_BYTE_PC): (Ditto.).
        (PRINT_OPERAND_PUNCT_VALID_P): Add '!' code.
        (LINK_SPEC): Add atmega2560 and atmega2561.
        (CRT_BINUTILS_SPEC): Add atmega2560 (crtm2560.o) and atmega2561 
        (crtm2561.o).
        * gcc/gcc/config/avr/avr.md (call_insn): Use eicall instead of icall 
        for 3 byte PC devices.
        (call_value_insn): (Ditto.).
        (*tablejump_enh): Use eijmp instead of ijmp for 3 byte PC devices.
        (indirect_jump): Use only for for 2 byte PC devices.
        (*tablejump): (Ditto.).
        (*indirect_jump_avr6): Add insn.
        (*tablejump_rjmp): Don't use for 3 byte PC devices.
        * gcc/gcc/config/avr/libgcc.S (__prologue_saves__): Use eijmp 
        instead of ijmp for 3 byte PC devices.
        (__tablejump2__): (Ditto.).
        * gcc/gcc/config/avr/t-avr (MULITLIB_OPTIONS): Add avr6 architecture.
        (MULITLIB_DIRNAMES): (Ditto.). 
        (MULTILIB_MATCHES): Add atmega2560 and atmega2561 to list.

2008-03-15  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/mmx.md ("sse2_umulv1siv2di3"): Rename from
        "sse2_umulsidi3".  Use V1DI mode for operand 0.
        ("mmx_psadbw"): Use V1DI mode for operand 0.
        * config/i386/i386-modes.def (V1SI): New vector mode.
        * config/i386/i386.c (struct builtin_description)
        [IX86_BUILTIN_PMULUDQ]: Use CODE_FOR_sse2_umulv1siv1di3.
        (v1di_ftype_v8qi_v8qi): Rename from di_ftype_v8qi_v8qi.
        (v1di_ftype_v2si_v2si): Rename from di_ftype_v2si_v2si.
        (ix86_init_mmx_sse_builtins) [__builtin_ia32_psadbw]: Use
        v1di_ftype_v8qi_v8qi type.
        [__builtin_ia32_pmuludq]: Use v1di_ftype_v2si_v2si type.

        * doc/extend.texi (X86 Built-in Functions) [__builtin_ia32_psadbw,
        __builtin_ia32_pmuludq]: Fix the mode of return value.

2008-03-15  Richard Guenther  <rguenther@suse.de>

        PR middle-end/35595
        * tree-ssa-pre.c (bitmap_find_leader): Handle expression
        being a PHI_NODE.

2008-03-14  Bob Wilson  <bob.wilson@acm.org>
        
        * doc/invoke.texi (Option Summary, Xtensa Options): Document
        -mserialize-volatile and -mno-serialize-volatile Xtensa options.
        * config/xtensa/xtensa.c (print_operand): Do not emit MEMW instructions
        unless TARGET_SERIALIZE_VOLATILE is enabled.
        * config/xtensa/xtensa.md (*lsiu, *ssiu): Likewise.
        * config/xtensa/xtensa.h (TARGET_DEFAULT): Add MASK_SERIALIZE_VOLATILE.
        * config/xtensa/xtensa.opt (mserialize_volatile): New option.

2008-03-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/34172
        * tree-flow.h (refs_may_alias_p): Declare.
        (get_single_def_stmt): Likewise.
        (get_single_def_stmt_from_phi): Likewise.
        (get_single_def_stmt_with_phi): Likewise.
        * tree-dfa.c (refs_may_alias_p): New function.
        (get_single_def_stmt): Likewise.
        (get_single_def_stmt_from_phi): Likewise.
        (get_single_def_stmt_with_phi): Likewise.
        * tree-ssa-sccvn.c (get_def_ref_stmt_vuses): New function.
        (vn_reference_lookup_1): New helper function.
        (vn_reference_lookup): Walk the virtual use-def chain to
        continue searching for a match if the def does not alias the
        reference we are looking for.

2008-03-14  David Edelsohn  <edelsohn@gnu.org>

        * doc/install.texi (Binaries): Remove UCLA archive.  Add HVCC
        archive and Perzl.  Update The Written Word listing.

2008-03-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/34043
        PR tree-optimization/33989
        * tree-ssa-pre.c (execute_pre): Allow SCCVN to do insertion
        when doing FRE.
        (bitmap_find_leader): Use extra argument to verify dominance
        relationship inside a basic-block.
        (can_PRE_operation): Add VIEW_CONVERT_EXPR.
        (find_leader_in_sets): Adjust.
        (create_component_ref_by_pieces): Take extra argument for
        dominance check, handle lookup failures.
        (find_or_generate_expression): Likewise.
        (create_expression_by_pieces): Likewise.
        (insert_into_preds_of_block): Adjust.
        (create_value_expr_from): If asked for, verify all operands
        are in the blocks AVAIL_OUT set.
        (make_values_for_stmt): Check for SSA_NAMEs that are life
        over an abnormal edge.
        (compute_avail): Remove such check.
        (do_SCCVN_insertion): New function.
        (eliminate): If we do not find a leader suitable for replacement
        insert a replacement expression from SCCVN if available.
        * tree-ssa-sccvn.h (run_scc_vn): Update prototype.
        (struct vn_ssa_aux): Add needs_insertion flag.
        * tree-ssa-sccvn.c (may_insert): New global flag.
        (copy_reference_ops_from_ref): Value-number union member access
        based on its size, not type and member if insertion is allowed.
        (visit_reference_op_load): For a weak match from union type
        punning lookup a view-converted value and insert a SSA_NAME
        for that value if that is not found.
        (visit_use): Make dumps shorter.  Do not disallow value numbering
        SSA_NAMEs that are life over an abnormal edge to constants.
        (free_scc_vn): Release inserted SSA_NAMEs.
        (run_scc_vn): New flag to specify whether insertion is allowed.
        Process SSA_NAMEs in forward order.
        * tree-ssa-loop-im.c (for_each_index): Handle invariant
        ADDR_EXPRs inside VIEW_CONVERT_EXPR.
        * fold-const.c (fold_unary): Fold VIEW_CONVERT_EXPRs from/to
        pointer type to/from integral types that do not change the
        precision to regular conversions.

2008-03-13  Uros Bizjak  <ubizjak@gmail.com>

        * doc/extend.texi (X86 Built-in Functions) [__builtin_ia32_psll?,
        __builtin_ia32_psrl?, __builtin_ia32_psra?, __builtin_ia32_psll?i,
        __builtin_ia32_psrl?i, __builtin_ia32_psra?i, __builtin_ia32_psll?128,
        __builtin_ia32_psrl?128, __builtin_ia32_psra?128]: Fix the mode of
        input arguments and the mode of return value.  Built-in functions
        that operate on whole 64-bit MMX register now use V1DI mode.

2008-03-13  Alon Dayan  <alond@il.ibm.com>
            Olga Golovanevsky  <olga@il.ibm.com>

        PR tree-optimization/35041
        * ipa-struct-reorg.c (find_pos_in_stmt_1): Add another option
        to locate the right position in a statement.

2008-03-13  Uros Bizjak  <ubizjak@gmail.com>

        PR target/34000
        PR target/35553
        * config/i386/xmmintrin.h:  Change all static inline functions to
        extern inline and add __gnu_inline__ attribute.
        * config/i386/bmintrin.h: Ditto.
        * config/i386/smmintrin.h: Ditto.
        * config/i386/tmmintrin.h: Ditto.
        * config/i386/mmintrin-common.h: Ditto.
        * config/i386/ammintrin.h: Ditto.
        * config/i386/emmintrin.h: Ditto.
        * config/i386/pmmintrin.h: Ditto.
        * config/i386/mmintrin.h: Ditto.
        * config/i386/mm3dnow.h: Ditto.

2008-03-13  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/35185
        * omp-low.c (lower_regimplify, init_tmp_var, save_tmp_var): Removed.
        (lower_omp_2): New function.
        (lower_omp_1, lower_omp): Rewritten.

2008-03-13  Danny Smith  <dannysmith@users.sourceforge.net>

        PR 35054
        * doc/extend.texi (Structure-Packing Pragmas): Replace "Win32"
        with the phrase "Microsoft Windows compilers".
        (Push/Pop Macro Pragmas): New subsection. Document
        #pragma push_macro and pragma pop_macro.

2008-03-12  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (output_move_double): Prefer LDRD to LDM.

2008-03-12  Paul Brook  <paul@codesourcery.com>

        * config/arm/thumb2.md: Extend peephole to cover 3-arg subs.
        (thumb2_alusi3_short): Exclude PLUS and MINUS.
        (thumb2_addsi_shortim): Rename ...
        (thumb2_addsi_short): ... to this.  Allow register operands.
        (thumb2_subsi_short): New pattern.
        (thumb2_one_cmplsi2_short,
        thumb2_negsi2_short): New patterns and peepholes.

2008-03-12  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_size_rtx_costs): Use ARM costs for Thumb-2.

2008-03-12  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (int_cond): New code iterator.
        (fp_cond): Ditto.
        ("s<code>"): Macroize expander from seq, sne, sgt, sgtu, slt, sltu,
        sge, sgeu, sle and sleu expanders usign int_cond code iterator.
        ("s<code>"): Macroize expander from sunordered, sordered, suneq, sunge,
        sungt, sunle, sunlt and sltgt expanders usign fp_cond code iterator.
        ("b<code>"): Macroize expander from beq, bne, bgt, bgtu, blt, bltu,
        bge, bgeu, ble and bleu expanders usign int_cond code iterator.
        ("b<code>"): Macroize expander from bunordered, bordered, buneq, bunge,
        bungt, bunle, bunlt and bltgt expanders usign fp_cond code iterator.

2008-03-12  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (use_return_insn): Use offsets->saved_regs_mask
        instead of {arm,thumb}_compute_save_reg_mask.
        (output_return_instruction): Ditto.
        (thumb_unexpanded_epilogue): Ditto.
        (thumb1_expand_prologue): Ditto.
        (thumb1_output_function_prologue): Ditto.
        (arm_set_return_address): Ditto.
        (thumb_set_return_address): Ditto.
        (arm_get_frame_offsets): Set offsets->saved_regs_mask.  Push extra
        regs to achieve stack alignment.
        (thumb1_compute_save_reg_mask): Fix compiler warning.
        (arm_output_epilogue): Use offsets->saved_regs_mask.
        Adjust stack pointer by poping call clobered registers.
        (arm_expand_prologue): Use offsets->saved_regs_mask.
        Adjust stack pointer by pushing extra registers.
        * config/arm.h (arm_stack_offsets): Add saved_regs_mask.

2008-03-12  Paolo Bonzini  <bonzini@gnu.org>

        PR tree-opt/35422
        * fold-const.c (fold_unary) <NOP_EXPR>: Distribute a narrowing
        conversion to the operands of a multiplication.

2008-03-12  Richard Guenther  <rguenther@suse.de>

        * Makefile.in (OBJS-common): Add tree-ssa-phiprop.o
        (tree-ssa-phiprop.o): Copy dependencies from tree-ssa-forwprop.o.
        * timevar.def (TV_TREE_PHIPROP): Add.
        * tree-ssa-phiprop.c: Split from tree-ssa-forwprop.c, added
        pass description.  Use TV_TREE_PHIPROP.
        * tree-ssa-forwprop.c: Remove phiprop code.

2008-03-12  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/35549
        * omp-low.c (maybe_lookup_decl): Constify first argument.
        (use_pointer_for_field): Change last argument from bool to
        omp_context *.  Disallow shared copy-in/out in nested
        parallel if decl is shared in outer parallel too.
        (build_outer_var_ref, scan_sharing_clauses,
        lower_rec_input_clauses, lower_copyprivate_clauses,
        lower_send_clauses, lower_send_shared_vars): Adjust callers.

2008-03-12  Victor Kaplansky  <victork@il.ibm.com>
            Ira Rosen  <irar@il.ibm.com>

        * tree-vectorizer.c (free_stmt_vec_info): New function.
        (destroy_loop_vec_info): Move code to free_stmt_vec_info().
        Call free_stmt_vec_info(). Free LOOP_VINFO_STRIDED_STORES..
        * tree-vectorizer.h (free_stmt_vec_info): Declare.
        * tree-vect-transform.c (vectorizable_conversion): Free
        vec_oprnds0 if it was allocated.
        (vect_permute_store_chain): Remove unused VECs.
        (vectorizable_store): Free VECs that are allocated in the..
        function.
        (vect_transform_strided_load, vectorizable_load): Likewise.
        (vect_remove_stores): Simplify the code.
        (vect_transform_loop): Move code to vect_remove_stores().
        Call vect_remove_stores() and free_stmt_vec_info().

2008-03-11  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.h (TARGET_LONG_PIC_SDIFF_CALL): Conditionalize define on
        TARGET_HPUX.  Revise comment.
        (TARGET_LONG_PIC_PCREL_CALL): Revise comment.
        * pa.c (output_call): Update for revised TARGET_LONG_PIC_SDIFF_CALL.
        Use sr4 variant of `be' instruction when not generating PIC code.
        (attr_length_call): Adjust for above change.

2008-03-11  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        * ipa-reference.c (static_execute): Remove module_statics_const and
        associated setting code.

2008-03-11  Uros Bizjak  <ubizjak@gmail.com>

        PR target/35540
        * config/i386/i386.md (paritysi2, paritydi2): Use register_operand
        predicate for operand 1.
        (paritysi2_cmp): Use register_operand predicate for operand 2.
        Use earlyclobber modifier for operand 1.  Remove support for
        memory operands.
        (paritydi2_cmp): Use register_operand predicate for operand 3.
        Use earlyclobber modifier for operand 1.  Remove support for
        memory operands.

2008-03-11  Paul Brook  <paul@codesourcery.com>
            Vladimir Prus  <vladimir@codesourcery.com>

        * config/arm/arm.c (use_return_insn): Check TARGET_APCS_FRAME.
        (arm_compute_save_reg0_reg12_mask): Always
        check if register 11 must be saved.  Always safe hard frame pointer
        when frame_pointer_needeed.
        (arm_compute_save_reg_mask): Save IP and PC
        only with apcs frames.
        (arm_output_epilogue): Adjust Thumb2 codepath to
        be also invoked and work for ARM non-apcs frames.
        (arm_expand_prologue): Don't bother saving IP
        for non-apcs frame, since it's not clobbered by
        prologue code.  Implement non-apcs frame
        layout.

2008-03-11  Paolo Bonzini  <bonzini@gnu.org>

        PR rtl-optimization/35281
        * expr.c (convert_move): Use a new pseudo for the intermediate
        from_mode->word_mode result.

2008-03-11  Paolo Bonzini  <bonzini@gnu.org>

        * langhooks-def.h (LANG_HOOKS_CLEAR_BINDING_STACK): Delete.
        * langhooks.h (struct lang_hooks): Delete clear_binding_stack member.
        * toplev.c (compile_file): Don't call it.

2008-03-11  Uros Bizjak  <ubizjak@gmail.com>

        PR middle-end/35526
        * expr.c (store_expr): Call emit_block_move if the mode
        of "temp" RTX is BLKmode.

2008-03-11  Andrew Pinski  <andrew_pinski@playstation.sony.com>
            Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/31358
        * tree-ssa-loop-manip.c (create_iv): Call force_gimple_operand for
        the step with a NULL_TREE.
        * tree-ssa-loop-ivopts.c (find_bivs): Convert the step
        to sizetype if type is a pointer type.
        (add_candidate_1): Don't convert the base and step to
        the generic type if the orginal type is a pointer type.
        (add_iv_value_candidates): Use sizetype for the step
        if type is a pointer type.
        (cand_value_at): Likewise.
        * tree-ssa-address.c (add_to_parts): Use POINTER_PLUS_EXPR
        for pointer types.
        * tree-affine.c (tree_to_aff_combination <POINTER_PLUS_EXPR>):
        Don't convert the tem affine to the type.
        (add_elt_to_tree): Use sizetype for the step if a pointer.
        Use POINTER_PLUS_EXPR for pointers.
        (aff_combination_to_tree): Use sizetype for the step if a
        pointer.

2008-03-10  Vladimir Makarov  <vmakarov@redhat.com>

        * config/i386/sse.md (ssse3_pmaddubswv8hi3, ssse3_pmaddubswv4hi3):
        Remove commutativity hint.

2008-03-10  Jakub Jelinek  <jakub@redhat.com>

        PR c/35438
        PR c/35439
        * c-parser.c (c_parser_omp_threadprivate): Don't add vars with
        errorneous type.  Check that v is a VAR_DECL.

        PR middle-end/35099
        * tree-cfg.c (new_label_mapper): Update cfun->last_label_uid.

2008-03-10  H.J. Lu  <hongjiu.lu@intel.com>

        PR tree-optimization/35494
        * tree-ssa-ccp.c (get_symbol_constant_value): Check if value
        may be overriden at link and run time.

2008-03-10  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/34677
        * tree-ssa-pre.c (modify_expr_node_pool): Remove.
        (poolify_tree): Likewise.
        (modify_expr_template): Likewise.
        (poolify_modify_stmt): Likewise.
        (insert_fake_stores): Handle all component-ref style stores
        in addition to INDIRECT_REF.  Also handle complex types.
        Do not poolify the inserted load.
        (realify_fake_stores): Do not rebuild the tree but only
        make it a SSA_NAME copy.
        (init_pre): Remove initialzation of modify_expr_template.
        Do not allocate modify_expr_node_pool.
        (fini_pre): Do not free modify_expr_node_pool.

2008-03-10  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.md (UNSPEC_STACK_ALIGN, UNSPEC_PIC_OFFSET): Renumber
        to avoid conflicts.

2008-03-10  Paul Brook  <paul@codesourcery.com>
            Mark Shinwell  <shinwell@codesourcery.com>

        * config/arm/cortex-r4.md: New.
        * config/arm/thumb2.md (divsi3, udivsi3): Annotate with
        insn attributes.
        * config/arm/arm.md: Include cortex-r4.md.
        (insn): Add smmls, sdiv and udiv values.
        (generic_sched): Don't use generic scheduling for Cortex-R4.
        (arm_issue_rate): New function.
        (TARGET_SCHED_ISSUE_RATE): Define.

2008-03-10  Sebastian Pop  <sebastian.pop@amd.com>

        * doc/invoke.texi (-ftree-loop-distribution): Add an example.

2008-03-10  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-pre.c (get_sccvn_value): Simplify.
        (compute_avail): Do not add stmt uses to AVAIL_OUT.

2008-03-10  Paolo Bonzini  <bonzini@gnu.org>

        * langhooks-def.h (LANG_HOOKS_REDUCE_BIT_FIELD_OPERATIONS):
        Set default to true.

2008-03-09  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * c.opt (Wsynth): Deprecate.
        * doc/invoke.texi (Option Summary, Warning Options): Document
        -Wno-format-contains-nul.

2008-03-09  Uros Bizjak  <ubizjak@gmail.com>

        PR target/35496
        * config/i386/i386.c (ix86_constant_alignment): Compute alignment using
        ALIGN_MODE_128 for VECTOR_CST and INTEGER_CST in addition to REAL_CST.

2008-03-09  Ira Rosen  <irar@il.ibm.com>

        * config/rs6000/rs6000.c (builtin_description): Rename vector
        left shift operations.
        * config/rs6000/altivec.md (UNSPEC_VSL): Remove.
        (altivec_vsl<VI_char>): Rename to ...
        (ashl<mode>3): ... new name.
        (mulv4sf3, mulv4si3, negv4sf2): Replace gen_altivec_vslw with
        gen_ashlv4si3.
        (absv4sf2): Convert to use ashift:V4SI instead of UNSPEC_VSL.

2008-03-08  Richard Guenther  <rguenther@suse.de>

        * coverage.h (tree_coverage_counter_addr): Declare.
        * coverage.c (tree_coverage_counter_addr): New function.
        * tree-profile.c (tree_gen_edge_profiler): Unshare counter
        before using again.
        (tree_gen_pow2_profiler): Use tree_coverage_counter_addr.
        (tree_gen_one_value_profiler): Likewise.
        (tree_gen_ic_profiler): Likewise.
        (tree_gen_average_profiler): Likewise.
        (tree_gen_ior_profiler): Likewise.

2008-03-08  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-sccvn.h (vn_binary_op_lookup): Remove.
        (vn_binary_op_insert): Likewise.
        (vn_unary_op_lookup): Likewise.
        (vn_unary_op_insert): Likewise.
        (vn_nary_op_lookup): Declare.
        (vn_nary_op_insert): Likewise.
        * tree-ssa-sccvn.c (struct vn_tables_s): Merge unary
        and binary hashes, use a single obstack for unary_op_pool
        and binary_op_pool.
        (struct vn_binary_op_s, struct vn_unary_op_s): Replace with
        a single struct vn_nary_op_s.  Store tree code length and
        a variable number of operands.
        (struct vn_reference_op_struct): Remove unused op2.
        (vn_reference_op_eq): Do not compare op2.
        (vn_reference_op_compute_hash): Do not compute hash of op2.
        (vn_unary_op_hash, vn_binary_op_hash): Replace with vn_nary_op_hash.
        (vn_unary_op_compute_hash, vn_binary_op_compute_hash): Replace
        with vn_nary_op_compute_hash.
        (vn_unary_op_eq, vn_binary_op_eq): Replace with vn_nary_op_eq.
        (vn_unary_op_lookup, vn_binary_op_lookup): Replace with
        vn_nary_op_lookup.
        (vn_unary_op_insert, vn_binary_op_insert): Replace with
        vn_nary_op_insert.
        (visit_unary_op): Call nary functions.
        (visit_binary_op): Likewise.
        (process_scc): Adjust for struct vn_tables_s changes.
        (allocate_vn_table): Likewise.
        (free_vn_table): Likewise.
        * tree-vn.c (vn_add): Call nary functions.
        (vn_lookup): Likewise.

2008-03-08  Jakub Jelinek  <jakub@redhat.com>

        PR target/35498
        * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): Shift
        wdst back after sync_compare_and_swapqhi_internal.

2008-03-08  Uros Bizjak  <ubizjak@gmail.com>

        PR target/22152
        * config/i386/i386-modes.def (V1DI): New vector mode.
        * config/i386/i386.h (VALID_MMX_REG_MODE): Add V1DImode.
        * config/i386/mmx.md (MMXMODEI8): New mode iterator.
        (MMXMODE248): Ditto.
        (MMXMODE): Add V1DI mode.
        (mmxvecsize): Change DI mode to V1DI mode.
        ("mov<mode>): Use MMXMODEI8 mode iterator.
        ("*mov<mode>_internal_rex64"): Ditto.
        ("*mov<mode>_internal"): Ditto.
        ("mmx_add<mode>3"): Ditto.  Handle V1DImode for TARGET_SSE2.
        ("mmx_sub<mode>3"): Ditto.
        ("mmx_adddi3"): Remove insn pattern.
        ("mmx_subdi3"): Ditto.
        ("mmx_ashr<mode>3"): Use SImode and "yN" constraint for operand 2.
        ("mmx_lshr<mode>3"): Ditto. Use MMXMODE248 mode iterator.
        ("mmx_ashl<mode>3"): Ditto.
        ("mmx_lshrdi3"): Remove insn pattern.
        ("mmx_ashldi3"): Ditto.
        * config/i386/i386.c (classify_argument): Handle V1DImode.
        (function_arg_advance_32): Ditto.
        (function_arg_32): Ditto.
        (struct builtin_description) [IX86_BUILTIN_PADDQ]: Use
        mmx_addv1di3 insn pattern.
        [IX86_BUILTIN_PSUBQ]: Use mmx_subv1di3 insn pattern.
        [IX86_BUILTIN_PSLL?, IX86_BUILTIN_PSRL?, IX86_BUILTIN_PSRA?,
        IX86_BUILTIN_PSLL?I, IX86_BUILTIN_PSRL?I, IX86_BUILTIN_PSRA?I,
        IX86_BUILTIN_PSLL?I128, IX86_BUILTIN_PSRL?I128, IX86_BUILTIN_PSRA?I128]:
        Remove definitions of built-in functions.
        (V1DI_type_node): New node.
        (v1di_ftype_v1di_int): Ditto.
        (v1di_ftype_v1di_v1di): Ditto.
        (v2si_ftype_v2si_si): Ditto.
        (v4hi_ftype_v4hi_di): Remove node.
        (v2si_ftype_v2si_di): Ditto.
        (ix86_init_mmx_sse_builtins): Handle V1DImode.
        (__builtin_ia32_psll?, __builtin_ia32_psrl?, __builtin_ia32_psra?):
        Redefine builtins using def_builtin_const with *_ftype_*_int node.
        (__builtin_ia32_psll?i, __builtin_ia32_psrl?i, __builtin_ia32_psra?i):
        Add new builtins using def_builtin_const.
        (ix86_expand_builtin) [IX86_BUILTIN_PSLL?, IX86_BUILTIN_PSRL?,
        IX86_BUILTIN_PSRA?, IX86_BUILTIN_PSLL?I, IX86_BUILTIN_PSRL?I,
        IX86_BUILTIN_PSRA?I]: Handle builtin definitions.
        * config/i386/mmintrin.h (__v1di): New typedef.
        (_mm_add_si64): Cast arguments to __v1di type.
        (_mm_sub_si64): Ditto.
        (_mm_sll_pi16): Cast __count to __v4hi type.
        (_mm_sll_pi32): Cast __count to __v2si type.
        (_mm_sll_si64): Cast arguments to __v1di type.
        (_mm_srl_pi16): Cast __count to __v4hi type.
        (_mm_srl_pi32): Cast __count to __v2si type.
        (_mm_srl_si64): Cast arguments to __v1di type.
        (_mm_sra_pi16): Cast __count to __v4hi type.
        (_mm_sra_pi32): Cast __count to __v2si type.
        (_mm_slli_pi16): Use __builtin_ia32_psllwi.
        (_mm_slli_pi32): Use __builtin_ia32_pslldi.
        (_mm_slli_si64): Use __builtin_ia32_psllqi. Cast __m to __v1di type.
        (_mm_srli_pi16): Use __builtin_ia32_psrlwi.
        (_mm_srli_pi32): Use __builtin_ia32_psrldi.
        (_mm_srli_si64): Use __builtin_ia32_psrlqi. Cast __m to __v1di type.
        (_mm_srai_pi16): Use __builtin_ia32_psrawi.
        (_mm_srai_pi32): Use __builtin_ia32_psradi.
        * config/i386/i386.md (UNSPEC_NOP): Remove unspec definition.
        * doc/extend.texi (X86 Built-in Functions) [__builtin_ia32_psll?,
        __builtin_ia32_psrl?, __builtin_ia32_psra?, __builtin_ia32_psll?i,
        __builtin_ia32_psrl?i, __builtin_ia32_psra?i]: Add new builtins.

2008-03-07  Joseph Myers  <joseph@codesourcery.com>

        * doc/include/texinfo.tex: Update to version 2008-03-07.10.

2008-03-07  Peter Bergner  <bergner@vnet.ibm.com>

        PR target/35373
        * config/rs6000/rs6000.c (rs6000_legitimize_address): Don't generate
        reg+const addressing for Altivec modes.  Don't generate reg+reg
        addressing for TFmode or TDmode quantities.

2008-03-07  Paolo Bonzini  <bonzini@gnu.org>

        * c-common.c (vector_types_convertible_p): Call langhook
        instead of comptypes.

2008-03-06  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR tree-opt/35402
        * tree-ssa-ccp.c (get_symbol_constant_value): Handle
        integral and scalar float variables which have a
        NULL DECL_INITIAL.

2008-03-06  Nathan Froyd  <froydnj@codesourcery.com>

        * dwarf2out.c (dwarf2out_frame_debug_expr): Consult the
        dwarf_register_span hook when emitting unwind information for
        register-to-memory saves.
        * config/rs6000/rs6000.c (spe_synthesize_frame): Delete.
        (rs6000_frame_related): Remove call to spe_synthesize_frame.

2008-03-06  Jakub Jelinek  <jakub@redhat.com>

        * gimplify.c (goa_lhs_expr_p): Allow different ADDR_EXPR nodes
        for the same VAR_DECL.

2008-03-06  Tom Tromey  <tromey@redhat.com>

        * treelang: Delete.
        * doc/standards.texi (Standards): Don't mention treelang.
        * doc/invoke.texi (Overall Options): Don't mention treelang.
        * doc/install.texi (Prerequisites): Don't mention bison or
        treelang.
        (Configuration): Don't mention treelang.
        (Building): Likewise.
        * doc/frontends.texi (G++ and GCC): Don't mention treelang.

2008-03-06  Paolo Bonzini  <bonzini@gnu.org>

        * simplify-rtx.c (simplify_subreg): Remove useless shifts from
        word-extractions out of a multi-word object.

2008-03-06  Richard Guenther  <rguenther@suse.de>

        * tree.def (BIT_FIELD_REF): Constrain result type and its precision.
        * tree-cfg.c (verify_expr): Verify BIT_FIELD_REF constraints on
        result type and precision.
        * expr.c (get_inner_reference): Set unsignedp based on the result
        type of BIT_FIELD_REF.
        * tree.h (BIT_FIELD_REF_UNSIGNED): Remove.
        * tree-sra.c (instantiate_element): Do not set BIT_FIELD_REF_UNSIGNED.
        (try_instantiate_multiple_fields): Likewise.  Use the correct type
        for BIT_FIELD_REF.
        (sra_build_assignment): Likewise.
        (sra_build_elt_assignment): Likewise.
        (sra_explode_bitfield_assignment): Likewise.
        * print-tree.c (print_node): Do not check BIT_FIELD_REF_UNSIGNED.
        * tree-vect-transform.c (vect_create_epilog_for_reduction): Do not
        set BIT_FIELD_REF_UNSIGNED.
        (vectorizable_load): Likewise.

2008-03-06  Andreas Krebbel  <krebbel1@de.ibm.com>

        * cse.c (cse_extended_basic_block): Invalidate artificial defs
        at bb start.

2008-03-06  Richard Guenther  <rguenther@suse.de>

        * alias.c (struct alias_set_entry): Move has_zero_child field
        to pack with alias_set.

2008-03-05  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386-modes.def: Use 4 byte alignment on DI for
        32bit host.

2008-03-05  Ian Lance Taylor  <iant@google.com>

        * alias.h (alias_set_type): Change from HOST_WIDE_INT to int.

2008-03-05  Kenneth Zadeck <zadeck@naturalbridge.com>

        * fwprop.c (update_df): Support width and offset parameters of
        df_ref_create.
        * ra-conflict.c (mark_reg_store, clear_reg_in_live,
        global_conflicts): Change DF_REF_EXTRACT to either
        DF_REF_ZERO_EXTRACT or DF_REF_SIGN_EXTRACT.  Change
        DF_REF_STRICT_LOWER_PART to DF_REF_STRICT_LOW_PART.
        * df-scan.c (df_ref_record, df_defs_record,
        df_ref_create_structure, df_def_record_1, df_uses_record,
        df_get_conditional_uses, df_get_call_refs, df_insn_refs_collect,
        df_bb_refs_collect, df_entry_block_defs_collect,
        df_exit_block_uses_collect): Support new width and offset fields.
        (ref_extract_pool): New storage pool.
        (df_free_ref): New function.
        (df_reg_chain_unlink, df_free_collection_rec,
        df_sort_and_compress_refs): Call df_free_ref.
        (df_ref_equal_p, df_ref_compare): Compare offset and width fields
        of df_ref_extract.
        (df_ref_create_structure): Allocate df_ref_extract if offset and
        width fields are used.
        (df_def_record_1): Get offset and width from ZERO_EXTRACT.
        (df_uses_record): Get offset and width from ZERO_EXTRACT 
        and SIGN_EXTRACT.
        * global.c (build_insn_chain): Change DF_REF_EXTRACT to either
        DF_REF_ZERO_EXTRACT or DF_REF_SIGN_EXTRACT.  Change
        DF_REF_STRICT_LOWER_PART to DF_REF_STRICT_LOW_PART.
        * df.h (df_ref_flags): Change DF_REF_EXTRACT to either
        DF_REF_ZERO_EXTRACT or DF_REF_SIGN_EXTRACT.  Change
        DF_REF_STRICT_LOWER_PART to DF_REF_STRICT_LOW_PART.
        (df_ref_extract): New structure.
        (DF_REF_WIDTH, DF_REF_OFFSET): New macros.
        (df_ref_create): Add width and offset parameters.
        
2008-03-05  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (get_constraint_for_component_ref):
        Use ranges_overlap_p.
        (offset_overlaps_with_access): Rename
        to ranges_overlap_p and move ...
        * tree-flow-inline.h (ranges_overlap_p): ... here.

        * tree.h (get_inner_reference, handled_component_p): Update
        comments.

        * tree.h (record_component_aliases, get_alias_set,
        alias_sets_conflict_p, alias_sets_must_conflict_p,
        objects_must_conflict_p): Move declarations ...
        * alias.h (record_component_aliases, get_alias_set,
        alias_sets_conflict_p, alias_sets_must_conflict_p,
        objects_must_conflict_p): ... here.
        Include coretypes.h.
        * Makefile.in (ALIAS_H): Add coretypes.h dependency.

2008-03-05  Aldy Hernandez  <aldyh@redhat.com>

        * cfg.c: Include tree-flow.h.
        (remove_edge_raw): Call redirect_edge_var_map_clear.
        (redirect_edge_succ_nodup): Call redirect_edge_var_map_dup.
        * tree-flow-inline.h (redirect_edge_var_map_def): New.
        (redirect_edge_var_map_result): New.
        * tree-cfgcleanup.c (remove_forwarder_block_with_phi): Replace
        PENDING_STMT use with redirect_edge_var_map_*.
        * tree-ssa.c (edge_var_maps): New definition.
        (redirect_edge_var_map_add): New.
        (redirect_edge_var_map_clear): New.
        (redirect_edge_var_map_dup): New.
        (redirect_edge_var_map_vector): New.
        (redirect_edge_var_map_destroy): New.
        (ssa_redirect_edge): Replace PENDING_STMT use with
        redirect_edge_var_map_*.
        (flush_pending_stmts): Same.
        (delete_tree_ssa): Destroy edge var map.
        * tree-flow.h (struct _edge_var_map): New.
        Define edge_var_map vector type.
        Declare redirect_edge_var_map_* prototypes.
        * Makefile.in (cfg.o): Depend on TREE_FLOW_H.
        * tree-cfg.c (reinstall_phi_args): Replace
        PENDING_STMT use with redirect_edge_var_map_*.

2008-03-05  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/35472
        * tree-ssa-dse.c (dse_optimize_stmt): Do not delete a store
        whose single use_stmt has a overlapping set of loaded and
        stored symbols as that use_stmt might be a noop assignment then.

2008-03-05  Joel Sherrill <joel.sherrill@oarcorp.com>

        * gthr-rtems.h: Implement __gthread_mutex_destroy.

2008-03-05  Richard Guenther  <rguenther@suse.de>

        PR c++/35336
        * tree.def (BIT_FIELD_REF): Document that operands 1 and 2
        should be constants.
        * tree-cfg.c (verify_expr): Verify it.
        * fold-const.c (fold_truthop): Remove code generating
        BIT_FIELD_REFs of structure bases.
        (fold_binary): Likewise.
        (fold_ternary): Position and size of BIT_FIELD_REFs are
        always host integers.
        (make_bit_field_ref): Remove.
        (optimize_bit_field_compare): Remove.
        (all_ones_mask_p): Remove.

2008-03-05  Gabor Loki  <loki@gcc.gnu.org>

        PR gcc/33009
        * rtl-factoring.c (clear_regs_live_in_seq): Fix backward steps.
        (split_block_and_df_analyze): New. Split basic block and rebuild
        dataflow.
        (block_label_after): Use SPLIT_BLOCK_AND_DF_ANALYZE instead of
        SPLIT_BLOCK.
        (split_pattern_seq): Likewise.
        (erase_matching_seqs): Likewise.
        (split_pattern_seq): Skip return insn in case of REG_NORETURN note.

2008-03-04  Geoff Keating  <geoffk@apple.com>

        * fold-const.c (tree_single_nonnegative_warnv_p): Fix mixed
        declaration and code.
        (tree_invalid_nonnegative_warnv_p): Likewise.

2008-03-05  Serge Belyshev  <belyshev@depni.sinp.msu.ru>

        * doc/install.texi (Testing): Correct quoting for the RUNTESTFLAGS
        examples.  Truncate option-names then causing overfull hbox.

2008-03-04  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/35222
        * configure.ac (CONFIG_SJLJ_EXCEPTIONS): Force SJLJ exceptions
        on hpux10.
        * configure: Rebuilt.

2008-03-04  Rafael Espindola  <espindola@google.com>

        * fold-const.c (tree_simple_nonnegative_warnv_p): New.
        (tree_unary_nonnegative_warnv_p): New.
        (tree_binary_nonnegative_warnv_p): New.
        (tree_single_nonnegative_warnv_p): New.
        (tree_invalid_nonnegative_warnv_p): New.
        (tree_expr_nonnegative_warnv_p): Redefine in term of the new functions.

2008-03-04  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR 28322
        * opts.c (handle_option): Postpone 'unknown option' errors only for
        warning options.

2008-03-04  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/35453
        * config/i386/smmintrin.h (SIDD_XXX): Renamed to ...
        (_SIDD_XXX): This.

2008-03-04  Rafael Espindola  <espindola@google.com>

        * fold-const.c (tree_unary_nonzero_warnv_p): New.
        (tree_binary_nonzero_warnv_p): New.
        (tree_single_nonzero_warnv_p): New.
        (tree_expr_nonzero_warnv_p): Redefine using the new functions.

2008-03-04  Uros Bizjak  <ubizjak@gmail.com>

        PR middle-end/35456
        * fold-const.c (fold_cond_expr_with_comparison): Prevent
        transformations for modes that have signed zeros.
        * ifcvt.c (noce_try_abs): Ditto.

2008-03-04  Joseph Myers  <joseph@codesourcery.com>

        * config/i386/i386.c (override_options): Force
        -maccumulate-outgoing-args on if TARGET_STACK_PROBE.

2008-03-04  Jan Hubicka  <jh@suse.cz>

        PR c++/35262
        * ipa-inline.c (cgraph_decide_inlining_of_small_function): Fix typo
        in last commit.

2008-03-04  Danny Smith  <dannysmith@users.sourceforge.net>

        * config/i386/i386.md (allocate_stack_worker_32): Use  __chkstk
        label to probe the stack.

2008-03-04  Danny Smith  <dannysmith@users.sourceforge.net>

        * gthr-win32.h [__GTHREAD_HIDE_WIN32API]
        (__gthr_win32_mutex_destroy): Declare.
        [__GTHREAD_HIDE_WIN32API] (__gthread_mutex_destroy): Use
        __gthr_win32_mutex_destroy.
        * config/i386/gthr-win32.c  (__gthr_win32_mutex_destroy): Define.

2008-03-03  Jan Hubicka  <jh@suse.cz>

        PR c++/35262
        * ipa-inline.c (cgraph_decide_inlining_of_small_function): Be more
        aggressive on inlining cold calls.

2008-03-03  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-sccvn.c (visit_reference_op_store): Do not insert
        struct copies into the expression table.
        (simplify_unary_expression): Handle VIEW_CONVERT_EXPR.
        (try_to_simplify): Likewise.
        * fold-const.c (fold_unary): Fold VIEW_CONVERT_EXPR of
        integral and pointer arguments which do not change the
        precision to NOP_EXPRs.
        * tree-ssa-loop-ivopts.c (may_be_nonaddressable_p): Adjust
        VIEW_CONVERT_EXPR case.

2008-03-02  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-scalar-evolution.c (instantiate_parameters_1): An SSA_NAME
        defined in a loop at depth 0 is invariant.
        * tree-chrec.c (evolution_function_is_invariant_rec_p): Ditto.
        * tree-ssa-loop-ivopts.c (expr_invariant_in_loop_p): Should never
        be called at loop depth 0.

2008-03-02  Jakub Jelinek  <jakub@redhat.com>

        PR driver/35420
        * gcc.c (process_command): Update copyright notice dates.
        * gcov.c (print_version): Likewise.
        * gcov-dump.c (print_version): Likewise.
        * mips-tfile.c (main): Likewise.
        * mips-tdump.c (main): Likewise.

2008-03-02  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR 24924
        * c-common.c (flag_permissive): Delete.
        (constant_expression_warnings): Check flags first.
        (constant_expression_error): New.
        * c-common.h (flag_permissive): Delete.
        (constant_expression_error): Declare.
        * flags.h (flag_permissive): Declare. Update description.
        * diagnostic.c (pedwarn): Update.
        (permerror): New.
        * diagnostic.h: (pedantic_error_kind): Rename as pedantic_warning_kind.
        (permissive_error_kind): New.
        * toplev.c (flag_permissive): Define. Update description.
        * toplev.h (permissive_error_kind): Declare.
        * c-errors.c (pedwarn_c99): Use pedantic_warning_kind.
        (pedwarn_c90): Use pedantic_warning_kind.
        * c-opts.c (c_common_post_options): flag_permissive does not affect
        flag_pedantic_errors.

2008-03-02  Joseph Myers  <joseph@codesourcery.com>

        * libgcc2.c (__addvSI3, __addvsi3, __addvDI3, __subvSI3,
        __subvsi3, __subvDI3, __negvSI2, __negvsi2, __negvDI2, __absvSI2,
        __absvsi2, __absvDI2): Use unsigned arithmetic.

2008-03-02  Andi Kleen  <ak@suse.de>
            Richard Guenther  <rguenther@suse.de>

        * struct-equiv.c: Remove file.
        * cfg_cleanup.c (condjump_equiv_p): Remove.
        * Makefile.in (OBJS-common): Remove struct-equiv.o.
        (struct-equiv.o): Remove rule.
        * basic-block.h (struct_equiv_checkpoint, STRUCT_EQUIV_*,
        insns_match_p, struct_equiv_block_eq, struct_equiv_init, 
        rtx_equiv_p, condjump_equiv_p): Remove prototypes.

2008-03-01  Alexandre Oliva  <aoliva@redhat.com>

        * ifcvt.c (noce_process_if_block): Try to handle only the then
        block if the else block exists but isn't suitable.

2008-03-01  Janne Blomqvist  <jb@gcc.gnu.org>

        PR gcc/35063
        * gthr-posix.h (__gthread_mutex_destroy): Remove extra declarations.
        * gthr-posix95.h (__gthread_mutex_destroy): Likewise. Note this fixes
        regression from previous patch.

2008-03-01  Janne Blomqvist  <jb@gcc.gnu.org>

        PR gcc/35063
        * gthr.h: Add __gthread_mutex_destroy as a function that must be
        implemented.
        * gthr-vxworks.h (__gthread_mutex_destroy): Null implementation.
        * gthr-single.h (__gthread_mutex_destroy): Likewise.
        * gthr-rtems.h (__gthread_mutex_destroy): Likewise.
        * gthr-mipssde.h (__gthread_mutex_destroy): Likewise.
        * gthr-nks.h (__gthread_mutex_destroy): Likewise.
        * gthr-solaris.h (__gthread_mutex_destroy): Call mutex_destroy.
        * gthr-win32.h (__GTHREAD_MUTEX_DESTROY_FUNCTION): Remove.
        (__gthread_mutex_destroy_function): Rename to
        __gthread_mutex_destroy.
        * gthr-dce.h (__gthread_mutex_destroy): Call
        pthread_mutex_destroy.
        * gthr-tpf.h (__gthread_mutex_destroy): Likewise.
        * gthr-posix.h (__gthread_mutex_destroy): Likewise.
        * gthr-posix95.h (__gthread_mutex_destroy): Likewise.

2008-03-01  Alexandre Oliva  <aoliva@redhat.com>

        * df-scan.c (df_ref_chain_change_bb): Simplify.
        (df_insn_change_bb): Add new_bb argument.  Simplify.  Call
        set_block_for_insn if there's any change.
        * df.h ((df_insn_change_bb): Fix prototype.
        * cfgrtl.c (update_bb_for_insn_chain): Pass bb to
        df_insn_change_bb, don't call set_block_for_insn.
        * emit-rtl.c (reorder_insns): Likewise.
        * haifa-sched.c (move_insn): Likewise.

2008-03-01  Alexandre Oliva  <aoliva@redhat.com>

        * rtlanal.c (loc_mentioned_in_p): Test XVECEXPs correctly.

2008-03-01  Alexandre Oliva  <aoliva@redhat.com>

        * tree-flow-inline.h (next_readonly_imm_use): Return
        NULL_USE_OPERAND_P after the end.

2008-03-01  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/35411
        * tree-sra.c (sra_build_assignment): Split conversion to
        final type to a separate statement if we are not assigning
        to a register.

2008-02-29  Francois-Xavier Coudert  <coudert@clipper.ens.fr>

        * fold-const.c (fold_convertible_p): Correct the logic to follow
        that in fold_convert().

2008-02-29  Douglas Gregor  <doug.gregor@gmail.com>

        PR c++/35315
        * tree-inline.c (build_duplicate_type): When we make a
        duplicate type, make it unique in the canonical types system.

2008-02-29  Tom Tromey  <tromey@redhat.com>

        * toplev.c (input_file_stack, input_file_stack_tick, fs_p,
        input_file_stack_history, input_file_stack_restored): Remove.
        (push_srcloc, pop_srcloc, restore_input_file_stack): Likewise.
        * input.h (struct file_stack): Remove.
        (push_srcloc, pop_srcloc, restore_input_file_stack): Likewise.
        (input_file_stack, input_file_stack_tick, INPUT_FILE_STACK_BITS):
        Likewise.
        * diagnostic.h (struct diagnostic_context) <last_module>: Change
        type.
        (diagnostic_last_module_changed): Add 'map' argument.
        (diagnostic_set_last_function): Likewise.
        * diagnostic.c (undiagnostic_report_current_module): Iterate using
        line map, not input_file_stack.
        * c-lex.c (fe_file_change): Don't use push_srcloc or pop_srcloc.

2008-02-29  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.md (arm_addsi3): Add r/k/n alternative.

2008-02-29  Paul Brook  <paul@codesourcery.com>

        * config/arm/ieee754-df.S (muldf3): Use RET macros.

2008-02-29  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-pre.c (get_sccvn_value): Create missing VNs via
        vn_lookup_or_add.
        * tree-ssa-sccnv.c (visit_reference_op_store): Use the rhs
        value for comparing for a store match.
        (simplify_unary_expression): Do nothing for SSA_NAMEs.
        (try_to_simplify): Do not do a full-blown reference lookup.

2008-02-29  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.c (sh_scalar_mode_supported_p): New function.
        (TARGET_SCALAR_MODE_SUPPORTED_P): Define.

        * config/sh/sh.h (OVERRIDE_OPTIONS): Don't warn for profiling.

2008-02-29  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-loop-linear.c (try_interchange_loops): Compare memory access
        strides against cache sizes.

2008-02-29  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.c (sh_secondary_reload): Handle loading a float
        constant to fpul.

2008-02-28  Richard Sandiford  <rsandifo@nildram.co.uk>

        * simplify-rtx.c (simplify_unary_operation_1): Extend the handling
        of SUBREG_PROMOTED_VAR_P to cope with cases where the extended value
        is smaller than the original promoted value.
        (simplify_subreg): If OP is a SUBREG, try to preserve its
        SUBREG_PROMOTED_VAR_P information.

2008-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>

        * tree-ssa-sccvn (vn_ssa_aux_obstack): New obstack.
        (VN_INFO_GET): Allocate new objects on the obstack.
        (init_scc_vn): Initialize the obstack.  Use XDELETE instead of free
        for rpo_numbers_temp, for consistency.
        (free_scc_vn): Free the obstack.

2008-02-28  Sebastian Pop  <sebastian.pop@amd.com>

        * doc/invoke.texi: Document -ftree-loop-distribution.
        * tree-loop-distribution.c: New.
        * tree-pass.h (pass_loop_distribution): New.
        * graphds.h (struct graph): Add htab_t indices.
        * timevar.def (TV_TREE_LOOP_DISTRIBUTION): New.
        * tree-vectorizer.c (rename_variables_in_loop): Extern.
        (slpeel_tree_duplicate_loop_to_edge_cfg): Init PENDING_STMT to NULL.
        * tree-vectorizer.h (tree_duplicate_loop_on_edge): Declared.
        * tree-data-ref.c (debug_data_dependence_relations): New.
        (dump_data_dependence_relation): Also print data references.
        (free_data_ref): Extern.
        (same_access_functions): Moved...
        (find_vertex_for_stmt): Renamed rdg_vertex_for_stmt.
        (dump_rdg_vertex, debug_rdg_vertex, dump_rdg_component,
        debug_rdg_component, dump_rdg, debug_rdg, dot_rdg_1, dot_rdg,
        struct rdg_vertex_info, rdg_vertex_for_stmt): New.
        (create_rdg_edge_for_ddr, create_rdg_vertices): Cleaned up.
        (stmts_from_loop): Skip LABEL_EXPR.
        (hash_stmt_vertex_info, eq_stmt_vertex_info, hash_stmt_vertex_del):
        New.
        (build_rdg): Initialize rdg->indices htab.
        (free_rdg, stores_from_loop, ref_base_address,
        rdg_defs_used_in_other_loops_p, have_similar_memory_accesses,
        have_similar_memory_accesses_1, ref_base_address_1,
        remove_similar_memory_refs): New.
        * tree-data-ref.h: Depend on tree-chrec.h.
        (debug_data_dependence_relations, free_data_ref): Declared.
        (same_access_functions): ... here.
        (ddr_is_anti_dependent, ddrs_have_anti_deps, ddr_dependence_level):
        New.
        (struct rdg_vertex): Add has_mem_write and has_mem_reads.
        (RDGV_HAS_MEM_WRITE, RDGV_HAS_MEM_READS, RDG_STMT,
        RDG_MEM_WRITE_STMT, RDG_MEM_READS_STMT): New.
        (dump_rdg_vertex, debug_rdg_vertex, dump_rdg_component,
        debug_rdg_component, dump_rdg, debug_rdg, dot_rdg,
        rdg_vertex_for_stmt): Declared.
        (struct rdg_edge): Add level.
        (RDGE_LEVEL): New.
        (free_rdg, stores_from_loop, remove_similar_memory_refs,
        rdg_defs_used_in_other_loops_p, have_similar_memory_accesses):
        Declared.
        (rdg_has_similar_memory_accesses): New.
        * tree-vect-analyze.c: Remove unused static decls.
        * lambda.h (dependence_level): New.
        * common.opt (ftree-loop-distribution): New.
        * tree-flow.h (mark_virtual_ops_in_bb, 
        slpeel_tree_duplicate_loop_to_edge_cfg,
        rename_variables_in_loop): Declared.
        * Makefile.in (TREE_DATA_REF_H): Depend on tree-chrec.h.
        (OBJS-common): Add tree-loop-distribution.o.
        (tree-loop-distribution.o): New rule.
        * tree-cfg.c (mark_virtual_ops_in_bb): New.
        (mark_virtual_ops_in_region): Use mark_virtual_ops_in_bb.
        * passes.c (init_optimization_passes): Schedule pass_loop_distribution.

2008-02-28  Joseph Myers  <joseph@codesourcery.com>

        PR target/33963
        * tree.c (handle_dll_attribute): Disallow TYPE_DECLs for types
        other than structures and unions.

2008-02-28  Richard Guenther  <rguenther@suse.de>

        Revert:
        2008-02-26  Richard Guenther  <rguenther@suse.de>

        * tree-flow.h (uid_decl_map_hash, uid_decl_map_eq): Move ...
        * tree.h (uid_decl_map_hash, uid_decl_map_eq): ... here.
        (lookup_decl_from_uid): Declare.
        (remove_decl_from_map): Likewise.
        * tree-ssa.c (uid_decl_map_eq, uid_decl_map_hash): Move ...
        * tree.c (uid_decl_map_eq, uid_decl_map_hash): ... here.
        (decl_for_uid_map): New global hashtable mapping DECL_UID
        to the decl tree.
        (init_ttree): Allocate it.
        (insert_decl_to_uid_decl_map): New helper function.
        (make_node_stat): Insert new decls into the map.
        (copy_node_stat): Likewise.
        (lookup_decl_from_uid): New function.
        (remove_decl_from_map): Likewise.
        (print_decl_for_uid_map_statistics): New helper.
        (dump_tree_statistics): Call it.

        * tree-flow.h (struct gimple_df): Make referenced_vars a bitmap.
        (referenced_var_iterator): Adjust.
        (FOR_EACH_REFERENCED_VAR): Adjust.
        (FOR_EACH_REFERENCED_VAR_IN_BITMAP): New iterator.
        (num_referenced_vars): Adjust.
        * tree-flow-inline.h (gimple_referenced_vars): Adjust.
        (first_referenced_var): Remove.
        (end_referenced_vars_p): Likewise.
        (next_referenced_var): Likewise.
        (referenced_var_iterator_set): New helper function.
        * tree-dfa.c (referenced_var_lookup): Adjust.
        (referenced_var_check_and_insert): Likewise.
        (remove_referenced_var): Likewise.
        * tree-ssa.c (verify_flow_insensitive_alias_info): Use
        FOR_EACH_REFERENCED_VAR_IN_BITMAP.
        (verify_call_clobbering): Likewise.
        (verify_memory_partitions): Likewise.
        (init_tree_ssa): Allocate bitmap instead of hashtable for
        referenced_vars.
        (delete_tree_ssa): Adjust.
        * tree-ssa-alias.c (mark_aliases_call_clobbered): Use
        FOR_EACH_REFERENCED_VAR_IN_BITMAP.
        (compute_tag_properties): Likewise.
        (set_initial_properties): Likewise.
        (find_partition_for): Likewise.
        (update_reference_counts): Likewise.
        (dump_may_aliases_for): Likewise.
        * tree-ssa-operands.c (add_virtual_operand): Likewise.
        (add_call_clobber_ops): Likewise.
        (add_call_read_ops): Likewise.
        (get_asm_expr_operands): Likewise.
        * tree-into-ssa.c (dump_decl_set): Likewise.
        (update_ssa): Likewise.
        * tree-sra.c (scan_function): Likewise.
        (decide_instantiations): Likewise.
        (scalarize_parms): Likewise.
        * tree-ssa-alias-warnings.c (build_reference_table): Likewise.
        (dsa_named_for): Likewise.
        * tree-ssa-structalias.c (update_alias_info): Likewise.
        (merge_smts_into): Likewise.

2008-02-27  David Daney  <ddaney@avtrex.com>

        PR target/34409
        * config/mips/iris.h (MIPS_DEBUGGING_INFO): Define.
        * config/mips/openbsd.h (MIPS_DEBUGGING_INFO): Same.
        * config/mips/sde.h (MIPS_DEBUGGING_INFO): Remove undef.
        * config/mips/vxworks.h (MIPS_DEBUGGING_INFO): Same.
        * config/mips/mips.h (MIPS_DEBUGGING_INFO): Remove define.

2008-02-27  Uros Bizjak  <ubizjak@gmail.com>

        PR target/25477
        * config/darwin-ppc-ldouble-patch.def (BUILT_IN_NANL): Add.
        (BUILT_IN_NEXTTOWARD): Remove.
        (BUILT_IN_NEXTTOWARDF): Ditto.
        * config/darwin.c (darwin_patch_builtin): Use ACONCAT instead of
        alloca/strcpy/strcat.  Remove commented-out code.  Fix whitespace.

2008-02-27  Tom Tromey  <tromey@redhat.com>

        * tree-dump.c (dequeue_and_dump) <FUNCTION_DECL>: Check
        DECL_SAVED_TREE, not DECL_LANG_SPECIFIC, when dumping body.

2008-02-27  Jan Beulich  <jbeulich@novell.com>

        * c-decl.c (merge_decls): Use DECL_USER_ALIGN() on olddecl to
        update the respective field on newdecl.

2008-02-27  Revital Eres  <eres@il.ibm.com>

        PR rtl-optimization/34999
        * bb-reorder.c (add_labels_and_missing_jumps): Do not handle
        crossing edges that ends with a call insn.
        (fix_up_fall_thru_edges): Handle crossing edges that ends with a
        call insn and clear the EDGE_CROSSING flag of the crossing edge
        when fixing fallthru edges.

2008-02-27  Richard Guenther  <rguenther@suse.de>

        PR middle-end/35390
        * fold-const.c (fold_unary): Return the correct argument,
        converted to the result type.

2008-02-27  Richard Guenther  <rguenther@suse.de>

        PR middle-end/34971
        * expr.c (expand_expr_real_1): Assert on rotates that operate
        on partial modes.
        * fold-const.c (fold_binary): Use the types precision, not the
        bitsize of the mode if folding rotate expressions.  Build rotates
        only for full modes.

2008-02-27  Jakub Jelinek  <jakub@redhat.com>

        * c-ppoutput.c (scan_translation_unit): Handle CPP_PRAGMA
        and CPP_PRAGMA_EOL.
        * c-pragma.c (pragma_ns_name): New typedef.
        (registered_pp_pragmas): New variable.
        (c_pp_lookup_pragma): New function.
        (c_register_pragma_1): If flag_preprocess_only, do nothing
        for non-expanded pragmas, for expanded ones push pragma's
        namespace and name into registered_pp_pragmas vector.
        (c_invoke_pragma_handler): Register OpenMP pragmas even when
        flag_preprocess_only, don't register GCC pch_preprocess
        pragma if flag_preprocess_only.
        * c-opts.c (c_common_init): Call init_pragma even if
        flag_preprocess_only.
        * c-pragma.c (c_pp_lookup_pragma): New prototype.
        * config/darwin.h (DARWIN_REGISTER_TARGET_PRAGMAS): Don't call
        cpp_register_pragma if flag_preprocess_only.

2008-02-26  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        PR c/28800
        * c-parser.c (c_parser_translation_unit): Warn for empty
        translation unit, not empty source file.

2008-02-26  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (thumb_set_frame_pointer): Ensure SP is first
        operand for Thumb-2.
        * config/arm/arm.h (reg_class): Add CORE_REGS.
        (REG_CLASS_NAMES, REG_CLASS_CONTENTS): Ditto.
        (BASE_REG_CLASS): Use CORE_REGS.
        (PREFERRED_RELOAD_CLASS): Add STACK_REG.
        (REGNO_MODE_OK_FOR_REG_BASE_P): Use REGNO_MODE_OK_FOR_BASE_P.
        (REGNO_OK_FOR_INDEX_P): Exclude SP.
        (ARM_REG_OK_FOR_INDEX_P): Always define.  Use
        ARM_REGNO_OK_FOR_INDEX_P.
        (ARM_PRINT_OPERAND_ADDRESS): Swap operands for [reg, sp].
        * config/arm/arm.md (arm_addsi3, thumb1_addsi3, arm_subsi3_insn,
        arm_movsi_insn, thumb1_movsi_insni, stack_tie): Add "k" alternatives.
        (ldm/stm peepholes): Ditto.
        * config/arm/thumb2.md (thumb2_movdi): Add "k" alternatives.
        * config/arm/vfp.md (arm_movsi_vfp, thumb2_movsi_vfp): Ditto.
        * config/arm/iwmmxt.md (iwmmxt_movsi_insn): Ditto.
        * config/arm/constraints.md: Enable "k" constraint on ARM.

2008-02-27  Ben Elliston  <bje@au.ibm.com>

        * config/rs6000/rs6000.c: Annotate cache line size field in all
        instances of struct processor_costs.

2008-02-26  David Edelsohn  <edelsohn@gnu.org>

        * dbgcnt.def (cfg_cleanup, cprop1, cprop2, dce_fast, dce_ud, dse1,
        dse2, gcse, if_conversion, if_after_combine, if_after_reload,
        jump_bypass): New counters.
        * cfgcleanup.c (cleanup_cfg): Add dbg_cnt.
        * dce.c (gate_ud_dce): Same.
        (gate_fast_dce): Same.
        * dse.c (gate_dse1): New function.
        (gate_dse2): New function.
        (gate_dse): Merge results of new gate functions.
        * gcse.c (gcse_main): Bracket cprop1 and cprop2 with dbg_cnt.
        (gate_handle_jump_bypass): Add dbg_cnt.
        (gate_handle_gcse): Add dbg_cnt.
        * ifcvt.c (gate_handle_if_conversion): Same.
        (gate_handle_if_after_combine): Same.
        (gate_handle_if_after_reload): Same.
        * Makefile.in: Add DBGCNT_H to cfgcleanup.o and ifcvt.o.

2008-02-26  Edmar Wienskoski  <edmar@freescale.com>

        * config/rs6000/rs6000.c (processor_costs): Update e300 cache
        line sizes.
        * doc/invoke.texi: Add e300c2 and e300c3 to list of cpus.

2008-02-26  Jason Merrill  <jason@redhat.com>

        PR c++/35315
        * attribs.c (decl_attributes): Leave ATTR_FLAG_TYPE_IN_PLACE 
        alone if it's the naming decl for the type's main variant.

2008-02-26  Tom Tromey  <tromey@redhat.com>

        * system.h (USE_MAPPED_LOCATION): Poison.
        * Makefile.in (GTFILES): Put CPP_ID_DATA_H first.
        * tree-cfg.c (make_cond_expr_edges): Remove old location code.
        (make_goto_expr_edges): Likewise.
        (remove_bb): Likewise.
        (execute_warn_function_return): Likewise.
        * basic-block.h (struct edge_def) <goto_locus>: Change type to
        location_t.
        * c-common.c (fname_decl): Remove old location code.
        * tree-vect-transform.c (vect_finish_stmt_generation): Remove old
        location code.
        * rtl.h (ASM_OPERANDS_SOURCE_LOCATION): Remove old-location
        variant.
        (ASM_INPUT_SOURCE_LOCATION): Likewise.
        (gen_rtx_ASM_INPUT): Likewise.
        (gen_rtx_ASM_INPUT_loc): Likewise.
        (get_rtx_asm_OPERANDS): Remove.
        * cfglayout.c (insn_locators_alloc): Remove old location code.
        (set_curr_insn_source_location): Likewise.
        (curr_insn_locator): Likewise.
        * print-tree.c (print_node): Remove old location code.
        * tree-mudflap.c (mf_varname_tree): Remove old location code.
        (mf_file_function_line_tree): Remove test of USE_MAPPED_LOCATION.
        * cfgexpand.c (expand_gimple_cond_expr): Don't use
        location_from_locus.
        (construct_exit_block): Remove old location code.
        * emit-rtl.c (force_next_line_note): Remove old location code.
        * profile.c (branch_prob): Remove old location code.
        * tree-vectorizer.h (LOC, UNKNOWN_LOC, EXPR_LOC, LOC_FILE,
        LOC_LINE): Remove old-location variants.
        * langhooks.c (lhd_print_error_function): Remove old location
        code.
        * configure, config.in: Rebuilt.
        * configure.ac (--enable-mapped-location): Remove.
        * c-decl.c (c_init_decl_processing): Remove old location code.
        (finish_function): Likewise.
        * recog.c (decode_asm_operands): Remove old location code.
        * c-pch.c (c_common_read_pch): Remove old location code.
        * rtl.def (ASM_INPUT, ASM_OPERANDS): Remove old location
        variants.
        * gimple-low.c (lower_function_body): Remove old location code.
        * toplev.c (unknown_location): Remove.
        (push_srcloc): Remove old-location variant.
        (process_options): Remove old location code.
        (lang_dependent_init): Likewise.
        * input.h (UNKNOWN_LOCATION): Move definition.
        (location_t): Undeprecate.
        (source_locus): Remove.
        (location_from_locus): Remove.
        (struct location_s): Remove.
        Remove all old-location code.
        (input_line, input_filename): Remove.
        * final.c (final_scan_insn): Remove old location code.
        * diagnostic.c (diagnostic_build_prefix): Remove
        USE_MAPPED_LOCATION test.
        * tree.h (gimple_stmt) <locus>: Now a location_t.
        (tree_exp) <locus>: Likewise.
        (DECL_IS_BUILTIN): Remove old-location variant.
        (annotate_with_file_line, annotate_with_locus): Likewise.
        (expr_locus, set_expr_locus): Update.
        * tree.c (build1_stat): Remove old location code.
        (last_annotated_node): Remove.
        (annotate_with_file_line): Remove old-location variant.
        (annotate_with_locus): Likewise.
        (expr_location): Remove old location code.
        (set_expr_location): Likewise.
        (expr_has_location): Likewise.
        (expr_locus): Likewise.
        (set_expr_locus): Likewise.
        (expr_filename): Don't use location_from_locus.
        (expr_lineno): Likewise.
        * rtl-error.c (location_for_asm): Remove old location code.
        * c-lex.c (cb_line_change): Remove old location code.
        (fe_file_change): Likewise.
        (cb_def_pragma): Likewise.
        (c_lex_with_flags): Likewise.
        * gengtype.c (do_typedef): Don't special-case location types.
        (define_location_structures): Remove.
        (main): Don't call define_location_structures.
        * tree-pretty-print.c (dump_implicit_edges): Remove old location
        code.

2008-02-26  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR 26264
        * builtins.def (BUILT_IN_STDARG_START): Remove.
        * builtins.c (expand_builtin): Remove BUILT_IN_STDARG_START.
        * tree-stdarg.c (execute_optimize_stdarg): Likewise.
        * tree-inline.c (inline_forbidden_p_1): Likewise.
        
2008-02-26  Richard Guenther  <rguenther@suse.de>

        * tree-flow.h (uid_decl_map_hash, uid_decl_map_eq): Move ...
        * tree.h (uid_decl_map_hash, uid_decl_map_eq): ... here.
        (lookup_decl_from_uid): Declare.
        (remove_decl_from_map): Likewise.
        * tree-ssa.c (uid_decl_map_eq, uid_decl_map_hash): Move ...
        * tree.c (uid_decl_map_eq, uid_decl_map_hash): ... here.
        (decl_for_uid_map): New global hashtable mapping DECL_UID
        to the decl tree.
        (init_ttree): Allocate it.
        (insert_decl_to_uid_decl_map): New helper function.
        (make_node_stat): Insert new decls into the map.
        (copy_node_stat): Likewise.
        (lookup_decl_from_uid): New function.
        (remove_decl_from_map): Likewise.
        (print_decl_for_uid_map_statistics): New helper.
        (dump_tree_statistics): Call it.

        * tree-flow.h (struct gimple_df): Make referenced_vars a bitmap.
        (referenced_var_iterator): Adjust.
        (FOR_EACH_REFERENCED_VAR): Adjust.
        (FOR_EACH_REFERENCED_VAR_IN_BITMAP): New iterator.
        (num_referenced_vars): Adjust.
        * tree-flow-inline.h (gimple_referenced_vars): Adjust.
        (first_referenced_var): Remove.
        (end_referenced_vars_p): Likewise.
        (next_referenced_var): Likewise.
        (referenced_var_iterator_set): New helper function.
        * tree-dfa.c (referenced_var_lookup): Adjust.
        (referenced_var_check_and_insert): Likewise.
        (remove_referenced_var): Likewise.
        * tree-ssa.c (verify_flow_insensitive_alias_info): Use
        FOR_EACH_REFERENCED_VAR_IN_BITMAP.
        (verify_call_clobbering): Likewise.
        (verify_memory_partitions): Likewise.
        (init_tree_ssa): Allocate bitmap instead of hashtable for
        referenced_vars.
        (delete_tree_ssa): Adjust.
        * tree-ssa-alias.c (mark_aliases_call_clobbered): Use
        FOR_EACH_REFERENCED_VAR_IN_BITMAP.
        (compute_tag_properties): Likewise.
        (set_initial_properties): Likewise.
        (find_partition_for): Likewise.
        (update_reference_counts): Likewise.
        (dump_may_aliases_for): Likewise.
        * tree-ssa-operands.c (add_virtual_operand): Likewise.
        (add_call_clobber_ops): Likewise.
        (add_call_read_ops): Likewise.
        (get_asm_expr_operands): Likewise.
        * tree-into-ssa.c (dump_decl_set): Likewise.
        (update_ssa): Likewise.
        * tree-sra.c (scan_function): Likewise.
        (decide_instantiations): Likewise.
        (scalarize_parms): Likewise.
        * tree-ssa-alias-warnings.c (build_reference_table): Likewise.
        (dsa_named_for): Likewise.
        * tree-ssa-structalias.c (update_alias_info): Likewise.
        (merge_smts_into): Likewise.

2008-02-26  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR 34351
        * doc/invoke.texi (-Wall): Add -Wvolatile-register-var.
        * c-opts.c (c_common_handle_option): Wall enables
        Wvolatile-register-var.
        * common.opt: Move Wvolatile-register-var to...
        * c.opt: ...here.
        
2008-02-26  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * common.opt (Wlarger-than=): New.
        * doc/invoke.texi (Warning Options): Replace -Wlarger-than- with
        -Wlarger-than=.
        * opts.c (common_handle_option): Handle -Wlarger-than=.
        * optc-gen.awk: Likewise.
        * opth-gen.awk: Likewise.
        * stor-layout.c (layout_decl): Use -Wlarger-than= for warning.
        * tree-optimize.c (tree_rest_of_compilation): Likewise.
        
2008-02-26  Manuel Lopez-Ibanez <manu@gcc.gnu.org>

        * c-common.c (match_case_to_enum_1): Add appropriate
        OPT_W* parameter to warning.
        (c_do_switch_warnings): Likewise.
        * c-typeck.c (warning_init): Add one more parameter following
        'warning' function.
        (push_init_level): Update call to warning_init.
        (pop_init_level): Likewise.
        (add_pending_init): Likewise.
        (output_init_element: Likewise.

2008-02-26  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR 28322
        * toplev.c (toplev_main): If there are warnings or error, print
        errors for ignored options.
        * opts.c (ignored_options): New static variable.
        (postpone_unknown_option_error): New.
        (print_ignored_options): New.
        (handle_option): Postpone errors for unknown -Wno-* options.
        * opts.h (print_ignored_options): Declare.
        
2008-02-25  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.md (loadgp_blockage, blockage): Change type
        to "ghost".

2008-02-25  Richard Guenther  <rguenther@suse.de>

        Revert:
        2008-02-25  Richard Guenther  <rguenther@suse.de>

        * tree-flow.h (uid_decl_map_hash, uid_decl_map_eq): Move ...
        * tree.h (uid_decl_map_hash, uid_decl_map_eq): ... here.
        (lookup_decl_from_uid): Declare.
        * tree-ssa.c (uid_decl_map_eq, uid_decl_map_hash): Move ...
        * tree.c (uid_decl_map_eq, uid_decl_map_hash): ... here.
        (decl_for_uid_map): New global hashtable mapping DECL_UID
        to the decl tree.
        (init_ttree): Allocate it.
        (insert_decl_to_uid_decl_map): New helper function.
        (make_node_stat): Insert new decls into the map.
        (copy_node_stat): Likewise.
        (lookup_decl_from_uid): New function.
        (print_decl_for_uid_map_statistics): New helper.
        (dump_tree_statistics): Call it.

        * tree-flow.h (struct gimple_df): Make referenced_vars a bitmap.
        (referenced_var_iterator): Adjust.
        (FOR_EACH_REFERENCED_VAR): Adjust.
        (FOR_EACH_REFERENCED_VAR_IN_BITMAP): New iterator.
        (num_referenced_vars): Adjust.
        * tree-flow-inline.h (gimple_referenced_vars): Adjust.
        (first_referenced_var): Remove.
        (end_referenced_vars_p): Likewise.
        (next_referenced_var): Likewise.
        (referenced_var_iterator_set): New helper function.
        * tree-dfa.c (referenced_var_lookup): Adjust.
        (referenced_var_check_and_insert): Likewise.
        (remove_referenced_var): Likewise.
        * tree-ssa.c (verify_flow_insensitive_alias_info): Use
        FOR_EACH_REFERENCED_VAR_IN_BITMAP.
        (verify_call_clobbering): Likewise.
        (verify_memory_partitions): Likewise.
        (init_tree_ssa): Allocate bitmap instead of hashtable for
        referenced_vars.
        (delete_tree_ssa): Adjust.
        * tree-ssa-alias.c (mark_aliases_call_clobbered): Use
        FOR_EACH_REFERENCED_VAR_IN_BITMAP.
        (compute_tag_properties): Likewise.
        (set_initial_properties): Likewise.
        (find_partition_for): Likewise.
        (update_reference_counts): Likewise.
        (dump_may_aliases_for): Likewise.
        * tree-ssa-operands.c (add_virtual_operand): Likewise.
        (add_call_clobber_ops): Likewise.
        (add_call_read_ops): Likewise.
        (get_asm_expr_operands): Likewise.
        * tree-into-ssa.c (dump_decl_set): Likewise.
        (update_ssa): Likewise.
        * tree-sra.c (scan_function): Likewise.
        (decide_instantiations): Likewise.
        (scalarize_parms): Likewise.
        * tree-ssa-alias-warnings.c (build_reference_table): Likewise.
        (dsa_named_for): Likewise.
        * tree-ssa-structalias.c (update_alias_info): Likewise.
        (merge_smts_into): Likewise.

2008-02-25  Janne Blomqvist  <jb@gcc.gnu.org>

        PR fortran/29549
        * doc/invoke.texi (-fcx-limited-range): Document new option.
        * toplev.c (process_options): Handle -fcx-fortran-rules.
        * common.opt: Add documentation for -fcx-fortran-rules.

2008-02-25  Janne Blomqvist  <jb@gcc.gnu.org>

        PR c/35162
        * doc/invoke.texi (-fcx-limited-range): Correct to be in line with
        actual behaviour and C99.
        
2008-02-26  Ben Elliston  <bje@au.ibm.com>

        * config/rs6000/rs6000.h (ASM_CPU_POWER5_SPEC): Define.
        (ASM_CPU_POWER6_SPEC): Likewise.
        (ASM_CPU_SPEC): Pass %(asm_cpu_power5) for -mcpu=power5.
        Likewise, pass %(asm_cpu_power6) for -mcpu=power6.
        (EXTRA_SPECS): Add asm_cpu_power5, asm_cpu_power6 spec strings.

2008-02-25  Richard Guenther  <rguenther@suse.de>

        * tree-flow.h (uid_decl_map_hash, uid_decl_map_eq): Move ...
        * tree.h (uid_decl_map_hash, uid_decl_map_eq): ... here.
        (lookup_decl_from_uid): Declare.
        * tree-ssa.c (uid_decl_map_eq, uid_decl_map_hash): Move ...
        * tree.c (uid_decl_map_eq, uid_decl_map_hash): ... here.
        (decl_for_uid_map): New global hashtable mapping DECL_UID
        to the decl tree.
        (init_ttree): Allocate it.
        (insert_decl_to_uid_decl_map): New helper function.
        (make_node_stat): Insert new decls into the map.
        (copy_node_stat): Likewise.
        (lookup_decl_from_uid): New function.
        (print_decl_for_uid_map_statistics): New helper.
        (dump_tree_statistics): Call it.

        * tree-flow.h (struct gimple_df): Make referenced_vars a bitmap.
        (referenced_var_iterator): Adjust.
        (FOR_EACH_REFERENCED_VAR): Adjust.
        (FOR_EACH_REFERENCED_VAR_IN_BITMAP): New iterator.
        (num_referenced_vars): Adjust.
        * tree-flow-inline.h (gimple_referenced_vars): Adjust.
        (first_referenced_var): Remove.
        (end_referenced_vars_p): Likewise.
        (next_referenced_var): Likewise.
        (referenced_var_iterator_set): New helper function.
        * tree-dfa.c (referenced_var_lookup): Adjust.
        (referenced_var_check_and_insert): Likewise.
        (remove_referenced_var): Likewise.
        * tree-ssa.c (verify_flow_insensitive_alias_info): Use
        FOR_EACH_REFERENCED_VAR_IN_BITMAP.
        (verify_call_clobbering): Likewise.
        (verify_memory_partitions): Likewise.
        (init_tree_ssa): Allocate bitmap instead of hashtable for
        referenced_vars.
        (delete_tree_ssa): Adjust.
        * tree-ssa-alias.c (mark_aliases_call_clobbered): Use
        FOR_EACH_REFERENCED_VAR_IN_BITMAP.
        (compute_tag_properties): Likewise.
        (set_initial_properties): Likewise.
        (find_partition_for): Likewise.
        (update_reference_counts): Likewise.
        (dump_may_aliases_for): Likewise.
        * tree-ssa-operands.c (add_virtual_operand): Likewise.
        (add_call_clobber_ops): Likewise.
        (add_call_read_ops): Likewise.
        (get_asm_expr_operands): Likewise.
        * tree-into-ssa.c (dump_decl_set): Likewise.
        (update_ssa): Likewise.
        * tree-sra.c (scan_function): Likewise.
        (decide_instantiations): Likewise.
        (scalarize_parms): Likewise.
        * tree-ssa-alias-warnings.c (build_reference_table): Likewise.
        (dsa_named_for): Likewise.
        * tree-ssa-structalias.c (update_alias_info): Likewise.
        (merge_smts_into): Likewise.

2008-02-25  Andreas Krebbel  <krebbel1@de.ibm.com>

        PR target/35258
        * cse.c (cse_insn): Avoid creation of overlapping MEMs.
        * alias.c (nonoverlapping_memrefs_p): Export for use in other modules.
        * alias.h (nonoverlapping_memrefs_p): Likewise.

2008-02-25  Jan Beulich  <jbeulich@novell.com>

        * Makefile.in: Also prefix uses of crt0.o and mcrt0.o with $(T).
        * config/i386/netware-libgcc.exp: Add __bswap?i2,
        __emultls_get_address, __emultls_register_common,
        __floatundi?f, and _Unwind_GetIPInfo.
        * config/i386/netware.c (gen_stdcall_or_fastcall_decoration):
        Sync with config/i386/winnt.c:gen_stdcall_or_fastcall_suffix().
        (gen_regparm_prefix): Likewise.
        (i386_nlm_encode_section_info): Sync with
        config/i386/winnt.c:i386_pe_encode_section_info().
        (i386_nlm_maybe_mangle_decl_assembler_name): New.
        i386_nlm_mangle_decl_assembler_name): New.
        (netware_override_options): New.
        * config/i386/netware.h (netware_override_options): Declare.
        (OVERRIDE_OPTIONS): Re-define to netware_override_options.
        (i386_nlm_mangle_decl_assembler_name): Declare.
        (TARGET_MANGLE_DECL_ASSEMBLER_NAME): Define.

2008-02-25  Ben Elliston  <bje@au.ibm.com>

        PR other/32948
        * c-decl.c (grokdeclarator): Remove unused local variables
        `typedef_type' and `type_as_written'.
        * bb-reorder.c
        (find_rarely_executed_basic_blocks_and_crossing_edges): Remove
        unused local variable `has_hot_blocks'.
        (fix_crossing_conditional_branches): Remove unused local variable
        `prev_bb'.
        
2008-02-25  Uros Bizjak  <ubizjak@gmail.com>

        PR middle-end/19984
        * builtins.def (BUILT_IN_NAN): Define as c99 builtin
        using DEF_C99_BUILTIN.
        (BUILT_IN_NANF): Ditto.
        (BUILT_IN_NANL): Ditto.

2008-02-25  Ayal Zaks  <zaks@il.ibm.com>
            Revital Eres  <eres@il.ibm.com>

        * modulo-sched.c (calculate_must_precede_follow): Address TODO
        regarding the order of two dependent insns in the same row.

2008-02-25  Eric Botcazou  <ebotcazou@adacore.com>

        * stor-layout.c (layout_decl): Do not bump the alignment of a
        bit-field to more than byte alignment if it is packed.

2008-02-24  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (processor_costs): Add cache costs for
        e300c2 and e300c3.

2008-02-24  Diego Novillo  <dnovillo@google.com>

        http://gcc.gnu.org/ml/gcc-patches/2008-02/msg01094.html

        PR 33738
        * tree-vrp.c (vrp_evaluate_conditional): With
        -Wtype-limits, emit a warning when comparing against a
        constant outside the natural range of OP0's type.
        * c.opt (Wtype-limits): Move ...
        * common.opt (Wtype-limits): ... here.

2008-02-24  Edmar Wienskoski  <edmar@freescale.com>

        * config.gcc (powerpc*-*-*): Add new cores e300c2 and e300c3.
        * config/rs6000/e300c2c3.md: New file.
        * config/rs6000/rs6000.c (processor_costs): Add new costs for
        e300c2 and e300c3.
        (rs6000_override_options): Add e300c2 and e300c3 cases to
        processor_target_table. Do not allow usage of Altivec or Spe
        with e300 cores. Initialize rs6000_cost for e300c2 and e300c3.
        (rs6000_issue_rate): Set issue rate for e300c2 and e300c3.
        * config/rs6000/rs6000.h (processor_type): Add
        PROCESSOR_PPCE300C2 and PROCESSOR_PPCE300C3.
        (ASM_CPU_SPEC): Add e300c2 and e300c3.
        * config/rs6000/rs6000.md (define_attr "cpu"): Add ppce300c2
        and ppce300c3. Include e300c2c3.md.

2008-02-23  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.h (CONSTANT_ALIGNMENT): Use STRICT_ALIGNMENT
        instead of TARGET_STRICT_ALIGN.

2008-02-23  Joseph Myers  <joseph@codesourcery.com>

        * explow.c (memory_address): Assert that the generated address is
        valid.

2008-02-23  Francois-Xavier Coudert  <coudert@clipper.ens.fr>

        PR target/25477
        * config/darwin-protos.h: Add darwin_patch_builtins prototype.
        * config/darwin-ppc-ldouble-patch.def: New file.
        * config/rs6000/darwin.h (SUBTARGET_INIT_BUILTINS): New macro.
        * config/rs6000/rs6000.c (rs6000_init_builtins): Call
        SUBTARGET_INIT_BUILTINS if defined.
        * config/darwin.c (darwin_patch_builtin, darwin_patch_builtins):
        New functions.

2008-02-23  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR rtl-opt/33512
        * simplify-rtx.c (simplify_binary_operation_1): Add simplification
        of (and X (ior (not X) Y) and (and (ior (not X) Y) X).

2008-02-23  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR pch/35027
        * c-pch.c (c_common_valid_pch): Make the "too short to be a PCH
        file" warning condtional on -Winvalid-PCH.

2008-02-23  Daniel Jacobowitz  <dan@codesourcery.com>

        * expmed.c (extract_bit_field): Always use adjust_address for MEM.

2008-02-23  Uros Bizjak  <ubizjak@gmail.com>

        PR target/22076
        PR target/34256 
        * config/i386/mmx.md (*mov<mode>_internal_rex64): Use "!y" to
        prevent reload from using MMX registers.
        (*mov<mode>_internal): Ditto.
        (*movv2sf_internal_rex64): Ditto.
        (*movv2sf_internal): Ditto.

2008-02-23  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        PR documentation/31569
        * doc/install.texi2html: Use makeinfo --no-number-sections.

2008-02-22  Nathan Froyd  <froydnj@codesourcery.com>

        * config/rs6000/rs6000.c (rs6000_legitimize_address): Check to
        ensure that we can address an entire entity > 8 bytes.  Don't
        generate reg+reg addressing for such data.

2008-02-22  Nathan Froyd  <froydnj@codesourcery.com>

        * config/rs6000/rs6000.h (CONSTANT_ALIGNMENT): Don't overalign
        strings when optimizing for size, unless the target cares about
        alignment.

2008-02-22  Tom Tromey  <tromey@redhat.com>

        * regclass.c (current_pass): Remove declaration.

2008-02-22  Anatoly Sokolov <aesok@post.ru>

        * config/avr/libgcc.S (__RAMPZ__): Define.
        (__do_copy_data): Add for devices with 128KB code memory.

2008-02-22  Nathan Froyd  <froydnj@codesourcery.com>

        * config/rs6000/linuxspe.h (SUBSUBTARGET_OVERRIDE_OPTIONS):
        Use spe_abi.
        * config/rs6000/eabispe.h (SUBSUBTARGET_OVERRIDE_OPTIONS): Likewise.

2008-02-22  Hans-Peter Nilsson  <hp@axis.com>

        * config/cris/cris.h (REG_CLASS_FROM_LETTER): Recognize 'b' for
        GENNONACR_REGS.

2008-02-22  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        PR c/19999
        * c-typeck.c (build_binary_op): Warn about floating point
        comparisons if FLOAT_TYPE_P, not only for REAL_TYPE.

2008-02-21  Janis Johnson  <janis187@us.ibm.com>

        PR target/34526
        * config/rs6000/rs6000.c (rs6000_altivec_abi): Clarify comment.
        (rs6000_explicit_options): Split abi into spe_abi and altivec_abi,
        add vrsave.
        (rs6000_override_options): Set altivec_abi as default, not override,
        for 64-bit GNU/Linux; for 32-bit GNU/Linux default to altivec_abi for
        TARGET_ALTIVEC; default to TARGET_ALTIVEC_VRSAVE when AltiVec ABI
        is used; use new member spe_abi.
        (rs6000_handle_option): Set rs6000_explicit_options.vrsave; use
        spe_abi and altivec_abi.

2008-02-22  Tomas Bily  <tbily@suse.cz>

        * tree-vectorizer.c (vect_is_simple_reduction): Fix comment typo.

2008-02-21  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        PR bootstrap/35273
        * config.build (build_file_translate): Set to `CMD //c' only if
        it works.
        * Makefile.in (build_file_translate): Improve comment.

2008-02-21  Jan Hubicka  <jh@suse.cz>

        * predict.def (PRED_TREE_OPCODE_POSITIVE, PRED_TREE_OPCODE_NONEQUAL,
        PRED_TREE_OPCODE_POSITIVE, PRED_TREE_OPCODE_NONEQUAL, PRED_CALL,
        PRED_TREE_EARLY_RETURN, PRED_NULL_RETURN): Update.

2008-02-21  Michael Matz  <matz@suse.de>

        PR target/35264
        * config/i386/i386.c (ix86_expand_branch): Add missing breaks.

2008-02-21  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (mov<mode>cc): Macroize expander from movsfcc,
        movdfcc and movxfcc using X87MODEF mode iterator and SSE_FLOAT_MODE_P
        as insn constraint.
        * config/i386/sse.md (<sse>_movup<ssemodesuffixf2c>): Macroize insn
        from sse_movups adn sse2_movupd using SSEMODEF2P mode iterator and
        SSE_VEC_FLOAT_MODE_P as insn constraint.
        (<sse>_movmskp<ssemodesuffixf2c>): Ditto from similar patterns.
        (sse4a_movnt<mode>): Macroize insn from sse4a_movntsf and
        sse4a_movntdf using MODEF mode iterator.
        (sse4a_vmmovnt<mode>): Macroize insn form sse4a_vmmovntv2df and
        sse4a_vmmovntv4sf using SSEMODEF2P mode iterator.
        (sse4_1_blendp<ssemodesuffixf2c>): Ditto from similar patterns.
        (sse4_1_blendvp<ssemodesuffixf2c>): Ditto.
        (sse4_1_dpp<ssemodesuffixf2c>): Ditto.
        (sse4_1_roundp<ssemodesuffixf2c>): Ditto.
        (sse4_1_rounds<ssemodesuffixf2c>): Ditto.

2008-02-21  Richard Guenther  <rguenther@suse.de>

        * tree.def (PAREN_EXPR): New tree code.
        * fold-const.c (fold_unary): Remove PAREN_EXPR around constants
        and PAREN_EXPR.
        * tree-pretty-print.c (dump_generic_node): Handle PAREN_EXPR.
        * expr.c (expand_expr_real_1): Likewise.
        * tree-inline.c (estimate_num_insns_1): Likewise.
        * tree-complex.c (expand_complex_move): Likewise.
        * tree-vectorizer.c (vect_is_simple_use): Treat PAREN_EXPR (x)
        as plain x.

2008-02-20  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/35225
        * config/sh/sh.c (find_barrier): Don't go past 'from' argument.

2008-02-20  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/35190
        * config/sh/sh.md (jump_compact): Disable for crossing jumps.

        * config/sh/sh.c (find_barrier): Don't go past
        NOTE_INSN_SWITCH_TEXT_SECTIONS note.

2008-02-20  DJ Delorie  <dj@redhat.com>

        * config/h8300/h8300.md (insv): Force source operand to be a register.

        * config/h8300/h8300.c (h8300_expand_epilogue): Emit return insn
        as a jump, not as a plain insn.
        
2008-02-20  Seongbae Park <seongbae.park@gmail.com>

        * doc/invoke.texi (Warning Options): Add new option
        -Wframe-larger-than=.
        (-Wframe-larger-than): Document.

        * flags.h (warn_frame_larger_than, frame_larger_than_size):
        Add declarations for new option variables.

        * final.c (final_start_function): Check the frame size
        before emission and issue a Wframe-larger-than warning.

        * opts.c (warn_frame_larger_than, frame_larger_than_size):
        Add definitions for new option variables.
        (common_handle_option): Handle new option OPT_Wframe_larger_than_.

        * common.opt (Wframe-larger-than=): New option.

2008-02-20  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (<sse>_vmmul<mode>3): Fix typo in asm template.
        (<sse>_div<mode>3): Ditto.
        (<sse>_vmdiv<mode>3): Ditto.
        (<sse>_vmsqrt<mode>2): Ditto.
        (*smax<mode>3): Ditto.
        (sse5_frcz<mode>2): Ditto.
        (sse5_vmfrcz<mode>2): Ditto.  Use TARGET_SSE5 instead of TARGET_ROUND
        as insn constraint.

2008-02-20  Richard Guenther  <rguenther@suse.de>

        PR middle-end/35265
        * builtins.c (validate_arg): If we want an INTEGER_TYPE,
        be happy with INTEGRAL_TYPE_P.

2008-02-20  Richard Guenther  <rguenther@suse.de>

        * fold-const.c (split_tree): Associate floatig-point expressions
        if flag_associative_math is set.

2008-02-20  Richard Guenther  <rguenther@suse.de>

        * tree.h (fold_real_zero_addition_p): Declare.
        * fold-const.c (fold_real_zero_addition_p): Export.
        * tree-ssa-reassoc.c (eliminate_using_constants): Also handle
        floating-point operations with zero and one.

2008-02-20  Paolo Bonzini  <bonzini@gnu.org>

        * doc/install.texi: Correct references to CFLAGS, replacing them
        with BOOT_CFLAGS.  Document flags used during bootstrap for
        target libraries.
                                
2008-02-20  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (SSE_VEC_FLOAT_MODE_P): New define.
        * config/i386/i386.md (*sse_setcc<mode>): Macroize from *sse_setccsf
        and *sse_setccdf using MODEF mode iterator and SSE_FLOAT_MODE_P as
        insn constraint.
        (smin<mode>3): Ditto from similar patterns.
        (smax<mode>3): Ditto.
        (*ieee_smin<mode>3): Ditto.
        (*ieee_smax<mode>3): Ditto.
        * config/i386/sse.md (sse): New mode attribute.
        (mov<mode>): Macroize expander from movv4sf and movv2df using
        SSEMODEF2P mode iterator.
        (<sse>_movnt<mode>): Ditto from similar patterns. Use
        SSE_VEC_FLOAT_MODE_P as insn constraint.
        (storent<mode>): Ditto.
        (storent<mode>): Macroize expander from storentsf and storentdf using
        MODEF mode iterator.
        (neg<mode>2): Macroize from negv4sf2 and negv2df2 using SSEMODEF2P
        mode iterator and SSE_VEC_FLOAT_MODE_P as insn constraint.
        (abs<mode>2): Ditto from similar patterns.
        (add<mode>3, *add<mode>3, <sse>_vmadd<mode>3): Ditto.
        (sub<mode>3, *sub<mode>3, <sse>_vmsub<mode>3): Ditto.
        (<sse>_div<mode>3, <sse>_vmdiv<mode>3): Ditto.
        (<sse>_vmsqrt<mode>2): Ditto.
        (smin<mode>3, *smin<mode>3_finite, *smin<mode>3)
        (<sse>_vmsmin<mode>3, *ieee_smin<mode>3): Ditto.
        (smax<mode>3, *smax<mode>3_finite, *smax<mode>3)
        (<sse>_vmsmax<mode>3, *ieee_smax<mode>3): Ditto.
        (<sse>_maskcmp<mode>3): Macroize from sse_maskcmpv4sf3,
        sse_maskcmpsf3, sse2_maskcmpv2df3 and sse2_maskcmpdf3 using SSEMODEF4
        mode iterator. Use SSE_FLOAT_MODE_P with SSE_VEC_FLOAT_MODE_P as
        insn constraint.
        (<sse>_comi): Macroize from sse_comi and sse2_comi using MODEF mode
        iterator and SSE_FLOAT_MODE_P as insn constraint.
        (<sse>_ucomi): Ditto from similar patterns.
        (<sse>_vmmaskcmp<mode>3): Macroize from sse_vmmaskcmpv4sf3 and
        sse2_vmmaskcmpv2df3 using SSEMODEF2P mode iterator and
        SSE_VEC_FLOAT_MODE_P as insn constraint.
        (vcond<mode>): Ditto from similar patterns.
        (and<mode>3, *and<mode>3): Ditto.
        (<sse>_nand<mode>3): Ditto.
        (ior<mode>3, *ior<mode>3): Ditto.
        (xor<mode>3, *xor<mode>3): Ditto.
        (*and<mode>3): Macroize from *andsf3 and *anddf3 using MODEF mode
        iterator and SSE_FLOAT_MODE_P as insn constraint.
        (*nand<mode>3): Ditto from similar patterns.
        (*ior<mode>3): Ditto.
        (*xor<mode>3): Ditto.

2008-02-20  Ira Rosen  <irar@il.ibm.com>

        * config/spu/spu.md (vec_unpacku_hi_v8hi, vec_unpacku_lo_v8hi,
        vec_unpacks_hi_v8hi, vec_unpacks_lo_v8hi, vec_unpacku_hi_v16qi,
        vec_unpacku_lo_v16qi, vec_unpacks_lo_v16qi): Implement.

2008-02-19  Jan Hubicka  <jh@suse.cz>

        * predict.c (tree_bb_level_predictions): Remove variable next
        mistakely introduced by previous commit.

2008-02-19  Jan Hubicka  <jh@suse.cz>

        * predict.c (predict_paths_leading_to): Rewrite.
        (predict_paths_for_bb): New.
        (tree_bb_level_predictions): Update call of predict_paths_leading_to.

2008-02-19  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        PR bootstrap/35218
        * Makefile.in (build_file_translate): New.
        (gcc-vers.texi): Use it for translating $(abs_srcdir).
        * config.build (build_file_translate): Set to `CMD //c' on MinGW.
        * configure.ac (build_file_translate): Substitute it.
        * configure: Regenerate.

2008-02-19  Jan Hubicka  <jh@suse.cz>

        PR rtl-optimization/34408
        * see.c (see_def_extension_not_merged): Copy subreg so we don't have
        invalid sharing.

2008-02-19  Jan Hubicka  <jh@suse.cz>

        PR middle-end/28779
        * tree-inline.c (estimate_num_insns_1): Fix counting of cost of
        call_expr.

2008-02-19  H.J. Lu  <hongjiu.lu@intel.com>

        PR Ada/35186
        * config/i386/i386-modes.def: Revert the last DI alignment
        change until Ada people can look into it.

2008-02-19  Nick Clifton  <nickc@redhat.com>

        * opts.c (print_specific_help): Fix typo in --help text.

2008-02-19  Jakub Jelinek  <jakub@redhat.com>

        PR target/35239
        * config/i386/cpuid.h (__cpuid, __get_cpuid_max): Use special
        32-bit inline asm without asm alternatives for host GCC < 3.0.

2008-02-19  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/34989
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Re-structure.
        Allow propagation to INDIRECT_REF if we can simplify only.

2008-02-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * c-common.c (warn_for_collisions_1): Use appropriate option when
        warning.

2008-02-19  Nick Clifton  <nickc@redhat.com>

        PR other/31349
        * opts.c (undocumented_msg): Leave blank unless checking is enabled.
        (handle_options): Fix indentation.
        (print_filtered_help): If no language-specific options were
        displayed tell the user how to list all the options supported by
        the language's front-end.
        (print_specific_help): Fix indentation and remove duplicate line.
        (common_handle_option): Handle the -v option.
        For --help enable the display of undocumented options if the -v
        switch has been included on the command line.
        For --help= check for overlaps in the arguments between the option
        classes and the language names and issue a warning when they
        cannot be disambiguated.
        * c.opt (v): Pass on to the common option handler.

2008-02-19  Revital Eres  <eres@il.ibm.com> 

        * modulo-sched.c (sms_schedule): Change dump message when
        create_ddg function fails.
        (try_scheduling_node_in_cycle): Rename row to cycle.
        (print_partial_schedule): Rename CYCLE to ROW.

2008-02-19  Christian Bruel  <christian.bruel@st.com>
            Zdenek Dvorak  <ook@ucw.cz>

        * tree-ssa-loop-ivopts.c (may_be_unaligned_p): Check step alignment.

2008-02-19  Uros Bizjak  <ubizjak@gmail.com>

        PR target/33555
        * config/i386/i386.md (*x86_movsicc_0_m1_se): New insn pattern.
        (*x86_movdicc_0_m1_se): Ditto.

2008-02-19  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sfp-machine.h (__gcc_CMPtype): New typedef.
        (CMPtype): Define as __gcc_CMPtype.
        * config/rs6000/sfp-machine.h (__gcc_CMPtype): New typedef.
        (CMPtype): Define as __gcc_CMPtype.

2008-02-19  Hans-Peter Nilsson  <hp@axis.com>

        Support valgrind 3.3 for --enable-checking=valgrind.
        * system.h: Consolidate ENABLE_VALGRIND_CHECKING-dependent defines
        here.
        [!VALGRIND_MAKE_MEM_NOACCESS]: Define as VALGRIND_MAKE_NOACCESS.
        [!VALGRIND_MAKE_MEM_DEFINED]: Define as VALGRIND_MAKE_READABLE.
        [!VALGRIND_MAKE_MEM_UNDEFINED]: Define as VALGRIND_MAKE_WRITABLE.
        * ggc-common.c: Remove ENABLE_VALGRIND_CHECKING-dependent defines.
        Replace use of VALGRIND_MAKE_READABLE, VALGRIND_MAKE_WRITABLE, and
        VALGRIND_MAKE_NOACCESS with VALGRIND_MAKE_MEM_DEFINED,
        VALGRIND_MAKE_MEM_UNDEFINED, and VALGRIND_MAKE_MEM_NOACCESS
        respectively.
        * ggc-zone.c: Similar.
        * ggc-page.c: Similar.

2008-02-19  Paul Brook  <paul@codesourcery.com>

        PR target/35071
        * config/arm/ieee754-df.S: Fix do_it typo.
        * config/arm/ieee754-sf.S: Fix do_it typo.

2008-02-18  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/35189
        * config/i386/i386.c (OPTION_MASK_ISA_MMX_SET): New.
        (OPTION_MASK_ISA_3DNOW_SET): Likewise.
        (OPTION_MASK_ISA_SSE_SET): Likewise.
        (OPTION_MASK_ISA_SSE2_SET): Likewise.
        (OPTION_MASK_ISA_SSE3_SET): Likewise.
        (OPTION_MASK_ISA_SSSE3_SET): Likewise.
        (OPTION_MASK_ISA_SSE4_1_SET): Likewise.
        (OPTION_MASK_ISA_SSE4_2_SET): Likewise.
        (OPTION_MASK_ISA_SSE4_SET): Likewise.
        (OPTION_MASK_ISA_SSE4A_SET): Likewise.
        (OPTION_MASK_ISA_SSE5_SET): Likewise.
        (OPTION_MASK_ISA_3DNOW_A_UNSET): Likewise.
        (OPTION_MASK_ISA_MMX_UNSET): Updated.
        (OPTION_MASK_ISA_3DNOW_UNSET): Updated.
        (OPTION_MASK_ISA_SSE_UNSET): Likewise.
        (OPTION_MASK_ISA_SSE3_UNSET): Likewise.
        (OPTION_MASK_ISA_SSSE3_UNSET): Likewise.
        (OPTION_MASK_ISA_SSE4_1_UNSET): Likewise.
        (OPTION_MASK_ISA_SSE4_2_UNSET): Likewise.
        (OPTION_MASK_ISA_SSE4A_UNSET): Likewise.
        (OPTION_MASK_ISA_SSE5_UNSET): Likewise.
        (OPTION_MASK_ISA_SSE4): Removed.
        (ix86_handle_option): Turn on bits in ix86_isa_flags and
        ix86_isa_flags_explicit with OPTION_MASK_ISA_XXX_SET for -mXXX.
        (override_options): Don't turn on implied SSE/MMX bits in
        ix86_isa_flags.

2008-02-18  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386-modes.def: Use 4 byte alignment on DI for
        32bit host.

2008-02-18  Joey Ye  <joey.ye@intel.com>

        PR middle-end/34921
        * tree-nested.c (insert_field_into_struct): Set type alignment
        to field alignment if the former is less than the latter.

2008-02-18  Jakub Jelinek  <jakub@redhat.com>

        * BASE-VER: Set to 4.4.0.

2008-02-17 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>

        * doc/c-tree.texi: Use @dots{} and @enddots{} where appropriate.
        * doc/cfg.texi: Likewise.
        * doc/extend.texi: Likewise.
        * doc/gty.texi: Likewise.
        * doc/invoke.texi: Likewise.
        * doc/loop.texi: Likewise.
        * doc/md.texi: Likewise.
        * doc/passes.texi: Likewise.
        * doc/rtl.texi: Likewise.
        * doc/sourcebuild.texi: Likewise.
        * doc/tm.texi: Likewise.
        * doc/tree-ssa.texi: Likewise.

2008-02-17  Richard Guenther  <rguenther@suse.de>

        PR middle-end/35227
        * tree-complex.c (init_parameter_lattice_values): Handle parameters
        without default definition.

2008-02-17  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/35231
        * tree-vrp.c (register_edge_assert_for): Do not assume A == 0
        if A | B != 1.

2008-02-17  Uros Bizjak  <ubizjak@gmail.com>

        Revert:
        2008-02-15  Uros Bizjak  <ubizjak@gmail.com>    
        * config/i386/sfp-machine.h (CMPtype): Define as typedef using
        libgcc_cmp_return mode.

2008-02-16  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c/28368
        * doc/invoke.texi (-std): Clarify description of -std= and -ansi.

2008-02-16  Ralf Corsepius  <ralf.corsepius@rtems.org>

        * config/m68k/t-rtems (M68K_MLIB_CPU): Add 5208, 5307, 5407, 5475
        multilibs.

2008-02-16  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * doc/c-tree.texi: Use `@.' where appropriate.
        * doc/extend.texi: Likewise.
        * doc/install.texi: Likewise.
        * doc/invoke.texi: Likewise.
        * doc/loop.texi: Likewise.
        * doc/makefile.texi: Likewise.
        * doc/md.texi: Likewise.
        * doc/passes.texi: Likewise.
        * doc/standards.texi: Likewise.
        * doc/tm.texi: Likewise.

2008-02-15  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/35196
        * omp-low.c (expand_omp_for_generic): Don't initialize fd->v
        in entry_bb.
        (expand_omp_for_static_nochunk): Initialize fd->v in seq_start_bb
        rather than in entry_bb.

2008-02-15  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sfp-machine.h (CMPtype): Define as typedef using
        libgcc_cmp_return mode.

2008-02-15  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/35130
        * tree-nested.c (convert_call_expr): Put FRAME.* vars into
        OMP_CLAUSE_SHARED rather than OMP_CLAUSE_FIRSTPRIVATE clause.

2008-02-15  Richard Guenther  <rguenther@suse.de>
            Zdenek Dvorak  <ook@ucw.cz>

        PR tree-optimization/35164
        * tree-flow.h (stmt_references_abnormal_ssa_name): Declare.
        * tree-dfa.c (stmt_references_abnormal_ssa_name): New function.
        * tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_vars):
        Only propagate addresses which do not have abnormal SSA_NAMEs
        in their operands.

2008-02-15  Joseph Myers  <joseph@codesourcery.com>

        PR target/35088
        * config/m68k/m68k.h (DWARF_CIE_DATA_ALIGNMENT): Define.

2008-02-15  Jan Hubicka  <jh@suse.cz>

        PR middle-end/35149
        * ipa.c (cgraph_remove_unreachable_nodes): Clear local.inlinable flag.

2008-02-15  Uros Bizjak  <ubizjak@gmail.com>

        PR middle-end/34621
        * function.c (pad_to_arg_alignment): Remove test for STACK_BOUNDARY
        when calculating alignment_pad.

2008-02-15  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (CLEAR_RATIO): Use MIN macro.
        (WIDEST_HARDWARE_FP_SIZE): Use LONG_DOUBLE_TYPE_SIZE define.
        * config/i386/darwin.h (PREFERRED_STACK_BOUNDARY): Use MAX macro
        and STACK_BOUNDARY define.

2008-02-14  Danny Smith  <dannysmith@users.sourceforge.net>

        PR preprocessor/35061
        * c-pragma.c (handle_pragma_pop_macro): Check that
        pushed_macro_table has been allocated.

2008-02-14  Eric Botcazou  <ebotcazou@adacore.com>

        PR middle-end/35136
        * gimplify.c (force_gimple_operand_bsi): Revert 2008-02-12 change.
        (force_gimple_operand): Likewise.
        * tree-ssa-loop-ivopts.c (may_be_nonaddressable_p): Add new cases
        for TARGET_MEM_REF and CONVERT_EXPR/NON_LVALUE_EXPR/NOP_EXPR.
        Also recurse on the operand for regular VIEW_CONVERT_EXPRs.
        (find_interesting_uses_address): Check addressability and alignment
        of the base expression only after substituting bases of IVs into it.

2008-02-14  Michael Matz  <matz@suse.de>

        PR target/34930
        * function.c (instantiate_virtual_regs_in_insn): Reload address
        before falling back to reloading the whole operand.

2008-02-14  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.c (s390_mainpool_start): Emit the pool
        before the first section switch note.

2008-02-14 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>

        * doc/bugreport.texi: Update copyright years.
        * doc/c-tree.texi: Likewise.
        * doc/cfg.texi: Likewise.
        * doc/cpp.texi: Likewise.
        * doc/cppinternals.texi: Likewise.
        * doc/fragments.texi: Likewise.
        * doc/frontends.texi: Likewise.
        * doc/gcc.texi: Likewise.
        * doc/gty.texi: Likewise.
        * doc/hostconfig.texi: Likewise.
        * doc/implement-c.texi: Likewise.
        * doc/libgcc.texi: Likewise.
        * doc/loop.texi: Likewise.
        * doc/makefile.texi: Likewise.
        * doc/options.texi: Likewise.
        * doc/passes.texi: Likewise.
        * doc/rtl.texi: Likewise.
        * doc/sourcebuild.texi: Likewise.
        * doc/standards.texi: Likewise.
        * doc/tree-ssa.texi: Likewise.
        * doc/trouble.texi: Likewise.

        * doc/extend.texi: Use @: or add comma where appropriate.
        * doc/invoke.texi: Likewise.
        * doc/tm.texi: Likewise.

2008-02-14  Alan Modra  <amodra@bigpond.net.au>

        PR target/34393
        * config/rs6000/rs6000.md (restore_stack_block): Force operands[1]
        to a reg.

2008-02-14  Jesper Nilsson  <jesper.nilsson@axis.com>

        * doc/md.texi (clz, ctz): Add reference.
        * doc/rtl.texi (clz, ctz): Likewise.

2008-02-13  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        PR other/35148
        * Makefile.in (gcc-vers.texi): Use abs_srcdir for the value of
        srcdir.

2008-02-13  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.c (struct constant_pool): New field
        emit_pool_after added.
        (s390_mainpool_start): Set the emit_pool_after flag according
        to the section switch notes.
        (s390_mainpool_finish): Consider emit_pool_after when emitting
        the literal pool at the end of the function.
        (s390_chunkify_start): Force literal pool splits at section
        switch notes.

2008-02-13  Michael Matz  <matz@suse.de>

        PR debug/35065
        * var-tracking.c (clobber_variable_part): Correctly traverse the
        list.

2008-02-13  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR 29673
        * doc/invoke.texi (Debugging Options): Remove -fdump-tree-inlined.
        Add -fdump-ipa-inline.
        * tree-dump.c (dump_files): Remove tree-inlined dump.
        * tree-pass.h (tree_dump_index): Remove TDI_inlined.
        
2008-02-12  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/35171
        * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Deal with
        default defs.

2008-02-12  Richard Guenther  <rguenther@suse.de>

        PR middle-end/35163
        * fold-const.c (fold_widened_comparison): Use get_unwidened in
        value-preserving mode.  Disallow final truncation.

2008-02-12  Eric Botcazou  <ebotcazou@adacore.com>

        PR middle-end/35136
        * gimplify.c (force_gimple_operand_bsi): Move SSA renaming
        code from here to...
        (force_gimple_operand): ...here.

2008-02-12  Jakub Jelinek  <jakub@redhat.com>

        PR c++/35144
        * tree-sra.c (sra_build_assignment): fold_convert SRC if copying
        non-compatible pointers.
        (generate_element_copy): If SRC and DST are RECORD_TYPEs with
        different FIELD_DECLs, try harder by comparing field offsets, sizes
        and types.

        PR inline-asm/35160
        * function.c (match_asm_constraints_1): Don't replace the same input
        multiple times.

2008-02-12  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.h (AVR_HAVE_RAMPZ): Define.
        * config/avr/avr.c (expand_prologue): Save RAMPZ register.
        (expand_epilogue): Restore RAMPZ register.
        * config/avr/avr.md (RAMPZ_ADDR): New constant.

2008-02-11  Kai Tietz  <kai.tietz@onevision.com>

        * config/i386/cygwin.asm: (__alloca): Correct calling
        convention and alignment.
        (__chkstk): Force 8 byte stack alignment.

2008-02-11  Uros Bizjak  <ubizjak@gmail.com>
            Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/33992
        * tree-ssa-loop-im.c (rewrite_bittest): Fixup the type of
        the zero we compare against.

2008-02-10  Danny Smith  <dannysmith@users.sourceforge.net>

        PR libfortran/35063
        * gthr-win32.h (__gthread_mutex_destroy_function): New function
        to CloseHandle after unlocking to prevent accumulation of handle
        count.

2008-02-09  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR middle_end/34150
        * pa.c (legitimize_pic_address): Add REG_EQUAL note on sets with a
        pic_label_operand source.  Similarly, add a REG_LABEL_OPERAND note
        and update LABEL_NUSES during and after reload.

2008-02-08  Steven Bosscher  <stevenb.gcc@gmail.com>

        PR middle-end/34627
        * combine.c (simplify_if_then_else): Make sure the comparison is
        against const0_rtx when simplifying to (abs x) or (neg (abs X)).

2008-02-08  Richard Sandiford  <rsandifo@nildram.co.uk>

        PR bootstrap/35051
        * double-int.h: Don't include gmp.h for GENERATOR_FILEs.
        (mpz_set_double_int, mpz_get_double_int): Hide from GENERATOR_FILEs.
        * real.h: Don't include gmp.h or mpfr.h for GENERATOR_FILEs.
        (real_from_mpfr, mpfr_from_real): Hide from GENERATOR_FILEs.
        * tree.h (get_type_static_bounds): Likewise.

2008-02-08  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * doc/invoke.texi (Option Summary, C++ Dialect Options)
        (Objective-C and Objective-C++ Dialect Options, Warning Options):
        Make -Wfoo language annotations match what the compiler outputs.

2008-02-08  Sa Liu  <saliu@de.ibm.com>

        * config/spu/spu-builtins.def: Fixed wrong parameter type in spu 
        intrinsics spu_convts, spu_convtu, spu_convtf.
        * testsuite/gcc.target/spu/intrinsics-3.c: New. Test error messages.

2008-02-08  Hans-Peter Nilsson  <hp@axis.com>

        * doc/extend.texi (Function Attributes) <noinline>: Mention
        asm ("") as method to keep calls.

2008-02-07  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR other/32754
        * doc/options.texi (Options): Replace references to opts.sh with
        optc-gen.awk.
        * opts-common.c: Likewise.
        * optc-gen.awk: Likewise.
        
2008-02-07  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.h (FUNCTION_ARG_REGNO_P): Fix fprs for 64 bit.

2008-02-07  Richard Henderson  <rth@redhat.com>

        PR rtl-opt/33410
        * config/alpha/alpha.c (alpha_emit_xfloating_compare): Use an
        EXPR_LIST for the REG_EQUAL instead of a comparison with a 
        funny mode.

2008-02-07  Uros Bizjak  <ubizjak@gmail.com>

        PR tree-optimization/35085
        * tree-ssa-reassoc.c (rewrite_expr_tree): Enable destructive update
        for operand entry oe2 in addition to operand entry oe3 in order to
        expose more opportunities for vectorizer sum reduction.

2008-02-06  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        PR other/35107
        * Makefile.in (LIBS): Remove $(GMPLIBS).
        (cc1-dummy, cc1): Add $(GMPLIBS).

2008-02-06  Jan Hubicka  <jh@suse.cz>

        PR target/23322
        * i386.md (moddf_integer): Do not produce partial memory stalls for
        targets where it hurts.

2008-02-06  Uros Bizjak  <ubizjak@gmail.com>

        PR target/35083
        * optabs.c (expand_float): Do not check for decimal modes when
        expanding unsigned integer through signed conversion.

2008-02-06  Nick Clifton  <nickc@redhat.com>

        * config/stormy16/stormy16.md (eqbranchsi): Replace a match_dup
        inside the clobber with a match_operand and duplicated operand
        number in the constraint.
        (ineqbranchsi): Delete redundant comment.

2008-02-06  Ralf Corsepius  <ralf.corsepius@rtems.org>

        * config/arm/rtems-elf.h (TARGET_OS_CPP_BUILTINS): Add 
        builtin_define ("__USE_INIT_FINI__").
        * config/h8300/t-rtems (MULTILIB_OPTION,MULTILIB_DIRNAMES): Add
        -msx multilibs.
        * gthr-rtems.h: Remove __GTHREAD_MUTEX_INIT.

2008-02-06  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        PR documentation/30330
        * doc/invoke.texi (C++ Dialect Options)
        (Objective-C and Objective-C++ Dialect Options, Warning Options):
        For each warning option -Wfoo that allows -Wno-foo, ensure both
        -Wfoo and -Wno-foo are listed in the option index.  Fix index
        entry of -Wswitch-default, index -Wnormalized= including the
        `=', and -Wlarger-than-@var{len} including @var{len}.

2008-02-05  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (floatunssisf2): Use
        ix86_expand_convert_uns_sisf_sse also for TARGET_SSE.
        (floatunssi<mode>2): Rename from floatunssisf2 and floatunssidf2.
        Macroize expander using MODEF mode iterator.

2008-02-05  Diego Novillo  <dnovillo@google.com>

        http://gcc.gnu.org/ml/gcc-patches/2008-02/msg00140.html

        PR 33738
        * tree-vrp.c (vrp_evaluate_conditional): Revert fix for PR 33738.

2008-02-05  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        PR other/35070
        * toplev.c (print_version): Honor `indent' for GMP/MPFR warnings.

2008-02-05  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/35084
        * config/i386/i386.c (ix86_function_sseregparm): Add an arg
        to indicate if a message should be generated.
        (init_cumulative_args): Updated.
        (function_value_32): Likewise.

2008-02-05  Joseph Myers  <joseph@codesourcery.com>

        * doc/include/texinfo.tex: Update to version 2008-02-04.16.

2008-02-05  Uros Bizjak  <ubizjak@gmail.com>

        PR target/35083
        * config/i386/i386.md (floatunsisf2): Enable for TARGET_SSE_MATH only.
        Call ix86_expand_convert_uns_sisf_sse for TARGET_SSE2.

2008-02-04  Diego Novillo  <dnovillo@google.com>

        http://gcc.gnu.org/ml/gcc-patches/2008-02/msg00110.html

        PR 33738
        * tree-vrp.c (vrp_evaluate_conditional): With
        -Wtype-limits, emit a warning when comparing against a
        constant outside the natural range of OP0's type.

2008-02-04  Richard Guenther  <rguenther@suse.de>

        PR middle-end/33631
        * expr.c (count_type_elements): Give for unions instead of
        guessing.

2008-02-04  Richard Guenther  <rguenther@suse.de>

        PR middle-end/35043
        * gimplify.c (gimplify_init_ctor_eval): Convert array indices
        to TYPE_DOMAINs base type instead of using bitsizetype here.

2008-02-03  Jason Merrill  <jason@redhat.com>

        * print-tree.c (print_node) [CONSTRUCTOR]: Print elements.

2008-02-04  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        PR other/29972
        * doc/invoke.texi (C++ Dialect Options, Optimize Options)
        (HPPA Options, i386 and x86-64 Options, IA-64 Options)
        (RS/6000 and PowerPC Options): Fix typos and markup.
        * doc/passes.texi (Tree-SSA passes): Likewise.

2008-02-02  Michael Matz  <matz@suse.de>

        PR target/35045
        * postreload-gcse.c (record_last_reg_set_info_regno): Renamed
        from record_last_reg_set_info.
        (record_last_reg_set_info): Take an RTX argument, iterate over all
        constituent hardregs.
        (record_last_set_info, record_opr_changes): Change calls to
        new signature or to record_last_reg_set_info_regno.

2008-02-02  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/extend.texi (X86 Built-in Functions): Fix grammar.

2008-02-01  Hans-Peter Nilsson  <hp@axis.com>

        PR rtl-optimization/34773
        * reg-notes.def (EQUAL): Mention significance of combination of
        REG_EQUAL and REG_RETVAL.
        * fwprop.c (try_fwprop_subst): Don't add REG_EQUAL to an
        insn that has a REG_RETVAL.

2008-02-01  Roger Sayle  <roger@eyesopen.com>

        PR bootstrap/33781
        * configure.ac (--enable-fixed-point): Disable unless explicitly
        requested on IRIX.
        * configure: Regenerate.

2008-02-01  Richard Guenther  <rguenther@suse.de>

        PR other/35042
        * invoke.texi (-finline-limit): Remove no longer true parts
        of the documentation.  Note that there is no default value.

2008-02-01  Andrew Pinski  <pinskia@gmail.com>
            Mark Mitchell  <mark@codesourcery.com>
            Ben Elliston  <bje@au.ibm.com>

        PR c/29326
        * doc/extend.texi (Other Builtins): Document.

2008-01-31  Tom Browder <tom.browder@gmail.com>

        * doc/c-tree.texi (Types): Fix grammar.
        (Expression trees): Ditto.
        * doc/passes.texi (Tree-SSA passes): Ditto.
        
        * doc/configterms.texi (Configure Terms): Fix typo.
        * doc/cpp.texi (Common Predefined Macros): Ditto.
        * doc/md.texi (Machine Constraints): Ditto.
        
        * doc/makefile.texi (Makefile): Add comma.

2008-01-31  Tom Browder  <tom.browder@gmail.com>
            Gerald Pfeifer  <gerald@pfeifer.com>
        
        * doc/sourcebuild.texi (Front End): Remove references to CVS
        and CVSROOT/modules.
        (Texinfo Manuals): Replace reference to CVS by one to SVN.
        (Back End): Remove reference to CVS.

2008-01-31  Richard Sandiford  <rsandifo@nildram.co.uk>

        PR target/34900
        * config/mips/mips.c (gen_load_const_gp): New function, taking a
        comment from...
        (mips16_gp_pseudo_reg): ...here.
        * config/mips/mips.md (load_const_gp): Replace with...
        (load_const_gp_<mode>): ...this :P-based insn.

2008-01-31  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * doc/invoke.texi (-ansi): Mention explicitly corresponding -std=
        options. Minor fixes.
        (-std): Move reference to standards closer to where language
        standards are first mentioned.
        
2008-01-31  Richard Sandiford  <rsandifo@nildram.co.uk>

        PR rtl-optimization/34995
        * reload.c (alternative_allows_const_pool_ref): Take an rtx
        parameter and return a bool.  If the rtx parameter is nonnull,
        check that it satisfies an EXTRA_MEMORY_CONSTRAINT.
        (find_reloads): Update call accordingly.  Pass the new operand
        if it needed no address reloads, otherwise pass null.

2008-01-30  Richard Henderson  <rth@redhat.com>

        PR c/34993
        * tree.c (build_type_attribute_qual_variant): Skip TYPE_DOMAIN
        for unbounded arrays.

2008-01-30  Silvius Rus  <rus@google.com>

        * config/i386/xmmintrin.h (_mm_prefetch): Add const to first arg.

2008-01-30  Jan Hubicka  <jh@suse.cz>

        PR target/34982
        * i386.c (init_cumulative_args): Use real function declaration when
        calling locally.

2008-01-30  Richard Sandiford  <rsandifo@nildram.co.uk>

        PR rtl-optimization/34998
        * global.c (build_insn_chain): Treat non-subreg_lowpart
        SUBREGs of pseudos as clobbering all the words covered by the
        SUBREG, not just all the bytes.
        * ra-conflict.c (clear_reg_in_live): Likewise.  Take the
        original df_ref rather than an extract parameter.
        (global_conflicts): Update call accordingly.

2008-01-30  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): Rearrange
        the overflow check to make it easier to read.
        (__fixtfdi): Change the type of the ll member in union
        long_double to UDItype_x.

2008-01-30  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/34969
        * cgraph.h (cgraph_update_edges_for_call_stmt): New prototype.
        * cgraph.c (cgraph_update_edges_for_call_stmt): New function.
        * tree-inline.c (fold_marked_statements): Call
        cgraph_update_edges_for_call_stmt if folding a call statement.
        * cgraphunit.c (verify_cgraph_node): Set cfun to this_cfun for
        debug_generic_stmt calls, reset it back afterwards.

        PR c/35017
        * c-decl.c (start_decl): Don't pedwarn about TREE_READONLY
        static decls.
        * c-typeck.c (build_external_ref): Don't pedwarn about
        static vars in current function's scope.

2008-01-29  Joseph Myers  <joseph@codesourcery.com>

        * config.gcc (i[34567]86-*-nto-qnx*): Remove deprecation.

2008-01-29  Bernhard Fischer  <aldot@gcc.gnu.org>

        PR c/35002
        * ipa-struct-reorg.c: Fix spelling.
        * params.def: Ditto.

2008-01-29  Richard Guenther  <rguenther@suse.de>

        PR middle-end/35006
        * tree-inline.h (struct copy_body_data): Add remapping_type_depth
        field.
        * tree-inline.c (remap_type): Increment remapping_type_depth
        around remapping types.
        (copy_body_r): Only add referenced variables if they are referenced
        from code, not types.

2008-01-29  Douglas Gregor  <doug.gregor@gmail.com>

        PR c++/34055
        PR c++/34103
        PR c++/34219
        PR c++/34606
        PR c++/34753
        PR c++/34754
        PR c++/34755
        PR c++/34919
        PR c++/34961
        * c-pretty-print.c (pp_c_type_qualifier_list): Don't try to print
        qualifiers for an ERROR_MARK_NODE or a NULL_TREE.

2008-01-28  Andy Hutchinson   <hutchinsonandy@netscape.net>

        PR target/34412
        * config/avr/avr.c (expand_prologue): Use correct QI mode frame 
        pointer for tiny stack.

2008-01-28  Bernhard Fischer  <aldot@gcc.gnu.org>

        * doc/tree-ssa.texi: Add cindex PHI nodes and improve wording.

2008-01-28  Bernhard Fischer  <aldot@gcc.gnu.org>

        * config/vx-common.h: Fix typo in comment.

2008-01-28  Ian Lance Taylor  <iant@google.com>

        PR c++/34862
        PR c++/33407
        * tree-ssa-copyrename.c (copy_rename_partition_coalesce): Don't
        coalesce pointers if they have different DECL_NO_TBAA_P values.
        * tree-ssa-copy.c (may_propagate_copy): Don't propagate copies
        between variables with different DECL_NO_TBAA_P values.

2008-01-28  Nathan Froyd  <froydnj@codesourcery.com>

        PR 31535
        * config/rs6000/rs6000.c (small_data_operand): Vectors and floats
        are not legitimate small data references on SPE targets.

2008-01-28  David Daney  <ddaney@avtrex.com>

        * doc/install.texi (mips-*-*): Recommend binutils 2.18.

2008-01-28  David Daney  <ddaney@avtrex.com>

        * doc/install.texi (--disable-libgcj-bc):  Reword documentation.

2008-01-27  Joseph Myers  <joseph@codesourcery.com>

        * config.gcc (strongarm*-*, ep9312*-*, xscale*-*, parisc*-*,
        m680[012]0-*, *-*-beos*, *-*-kaos*, *-*-linux*aout*,
        *-*-linux*libc1*, *-*-solaris2.[0-6], *-*-solaris2.[0-6].*,
        *-*-sysv*, *-*-windiss*, alpha*-*-unicosmk*, cris-*-aout,
        hppa1.1-*-pro*, hppa1.1-*-osf*, hppa1.1-*-bsd*,
        i[34567]86-sequent-ptx4*, i[34567]86-*-nto-qnx*,
        i[34567]86-*-sco3.2v5*, i[34567]86-*-uwin*, powerpc-*-chorusos*,
        vax-*-bsd*, vax-*-ultrix*): Mark obsolete.

2008-01-27  Bernhard Fischer  <aldot@gcc.gnu.org>

        * basic-block.h (condjump_equiv_p): Fix comment.

2008-01-27  Bernhard Fischer  <aldot@gcc.gnu.org>

        * tree-pretty-print.c (print_generic_decl, print_generic_stmt,
        print_generic_stmt_indented): Fix comment.

2008-01-27  Bernhard Fischer  <aldot@gcc.gnu.org>

        * configure.ac (__stack_chk_fail): Add detecion for availability
        of SSP in uClibc by checking if __UCLIBC_HAS_SSP__ is defined.
        * configure: Regenerate.

2008-01-26  Maxim Kuvyrkov  <maxim@codesourcery.com>

        PR middle-end/34688
        * final.c (output_addr_const): Handle TRUNCATE.

2008-01-26  Zdenek Dvorak  <ook@ucw.cz>

        PR target/34711
        * tree-ssa-loop-ivopts.c (comp_cost): New type.
        (zero_cost, infinite_cost): New constants.
        (struct cost_pair): Change type of cost to comp_cost.
        (struct iv_ca): Change type of cand_use_cost and cost to comp_cost.
        (new_cost, add_costs, sub_costs, compare_costs, infinite_cost_p):
        New functions.
        (set_use_iv_cost, force_expr_to_var_cost, force_var_cost,
        split_address_cost, ptr_difference_cost, difference_cost,
        get_computation_cost_at, get_computation_cost,
        determine_use_iv_cost_generic, determine_use_iv_cost_address,
        determine_use_iv_cost_condition, determine_use_iv_costs,
        cheaper_cost_pair, iv_ca_recount_cost, iv_ca_set_no_cp,
        iv_ca_set_cp, iv_ca_cost, iv_ca_new, iv_ca_dump, iv_ca_extend,
        iv_ca_narrow, iv_ca_prune, try_improve_iv_set, find_optimal_iv_set):
        Change type of cost to comp_cost.
        (determine_iv_cost): Increase cost of non-original ivs, instead
        of decreasing the cost of original ones.
        (get_address_cost): Indicate the complexity of the addressing mode 
        in comp_cost.
        (try_add_cand_for): Prefer using ivs not specific to some object.
        * tree-flow.h (force_expr_to_var_cost): Declaration removed.

2008-01-26  Peter Bergner  <bergner@vnet.ibm.com>
            Janis Johnson  <janis187@us.ibm.com>

        PR target/34814
        * doc/tm.texi (TARGET_EXPAND_TO_RTL_HOOK): Document.
        (TARGET_INSTANTIATE_DECLS): Likewise.
        * target.h (expand_to_rtl_hook): New target hook.
        (instantiate_decls): Likewise.
        * function.c (instantiate_decl): Make non-static.  Rename to...
        (instantiate_decl_rtl): ... this.
        (instantiate_expr): Use instantiate_decl_rtl.
        (instantiate_decls_1): Likewise.
        (instantiate_decls): Likewise.
        (instantiate_virtual_regs: Call new instantiate_decls taget hook.
        * function.h (instantiate_decl_rtl): Add prototype.
        * cfgexpand.c (target.h): New include.
        (tree_expand_cfg): Call new expand_to_rtl_hook target hook.
        * target-def.h (TARGET_EXPAND_TO_RTL_HOOK): New define.
        (TARGET_INSTANTIATE_DECLS): Likewise.
        (TARGET_INITIALIZER): New target hooks added.
        * config/rs6000/rs6000-protos.h (rs6000_secondary_memory_needed_rtx):
        New prototype.
        * config/rs6000/rs6000.c (tree-flow.h): New include.
        (machine_function): Add sdmode_stack_slot field.
        (rs6000_alloc_sdmode_stack_slot): New function.
        (rs6000_instantiate_decls): Likewise.
        (rs6000_secondary_memory_needed_rtx): Likewise.
        (rs6000_check_sdmode): Likewise.
        (TARGET_EXPAND_TO_RTL_HOOK): Target macro defined.
        (TARGET_INSTANTIATE_DECLS): Likewise.
        (rs6000_hard_regno_mode_ok): Allow SDmode.
        (num_insns_constant): Likewise.  Handle _Decimal32 constants.
        (rs6000_emit_move): Handle SDmode.
        (function_arg_advance): Likewise.
        (function_arg): Likewise.
        (rs6000_gimplify_va_arg): Likewise.  Add special handling of
        SDmode var args for 32-bit compiles.
        (rs6000_secondary_reload_class): Handle SDmode.
        (rs6000_output_function_epilogue): Likewise.
        (rs6000_function_value): Simplify if statement.
        (rs6000_libcall_value): Likewise.
        * config/rs6000/rs6000.h (SLOW_UNALIGNED_ACCESS): Handle SDmode.
        (SECONDARY_MEMORY_NEEDED_RTX): Add define.
        * config/rs6000/dfp.md (movsd): New define_expand and splitter.
        (movsd_hardfloat): New define_insn.
        (movsd_softfloat): Likewise.
        (movsd_store): Likewise.
        (movsd_load): Likewise.
        (extendsddd2): Likewise.
        (extendsdtd2): Likewise.
        (truncddsd2): Likewise.
        (movdd_hardfloat64): Fixup comment.
        (UNSPEC_MOVSD_LOAD): New constant.
        (UNSPEC_MOVSD_STORE): Likewise.

2008-01-26  Jakub Jelinek  <jakub@redhat.com>

        PR c++/34965
        * c-pretty-print.c (pp_c_exclusive_or_expression): Handle
        TRUTH_XOR_EXPR.
        (pp_c_logical_and_expression): Handle TRUTH_AND_EXPR.
        (pp_c_logical_or_expression): Handle TRUTH_OR_EXPR.
        (pp_c_expression): Handle TRUTH_AND_EXPR, TRUTH_OR_EXPR
        and TRUTH_XOR_EXPR.

2008-01-26  David Edelsohn  <edelsohn@gnu.org>

        PR target/34794
        * config.gcc: Separate AIX 5.3 from AIX 6.1.
        * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Define
        __LONGDOUBLE128 too.
        * config/rs6000/aix61.h: New file.

2008-01-26  Richard Sandiford  <rsandifo@nildram.co.uk>

        PR rtl-optimization/34959
        * optabs.c (expand_unop): In libcall notes, give ffs, clz, ctz,
        popcount and parity rtxes the same mode as their operand.
        Truncate or extend the result to the return value's mode
        if necessary.

2008-01-26  Richard Sandiford  <rsandifo@nildram.co.uk>

        PR target/34981
        * config/mips/mips-protos.h (mips_expand_call): Return an rtx.
        * config/mips/mips.h (FIRST_PSEUDO_REGISTER): Rename FAKE_CALL_REGNO
        to GOT_VERSION_REGNUM.
        (CALL_REALLY_USED_REGISTERS): Set the GOT_VERSION_REGNUM entry to 0.
        (EPILOGUE_USES): Include GOT_VERSION_REGNUM if TARGET_USE_GOT.
        * config/mips/mips.c (mips_emit_call_insn): New function.
        (mips_call_tls_get_addr): Call mips_expand_call directly.
        (mips16_copy_fpr_return_value): Use mips_emit_call_insn rather than
        emit_call_insn.
        (mips16_build_call_stub): Likewise.  Return the call insn or null.
        (mips_expand_call): Update the call to mips16_build_call_stub
        accordingly and a remove redundant condition.  Assert that MIPS16
        stubs do not use lazy binding.  Use mips_emit_call_insn and return
        the call insn.
        (mips_extra_live_on_entry): Include GOT_VERSION_REGNUM if
        TARGET_USE_GOT.
        (mips_hard_regno_mode_ok_p): Allow SImode for GOT_VERSION_REGNUM.
        (mips_avoid_hazard): Remove hazard_set handling.
        * config/mips/mips.md (UNSPEC_EH_RECEIVER): Rename to...
        (UNSPEC_RESTORE_GP): ...this.
        (UNSPEC_SET_GOT_VERSION, UNSPEC_UPDATE_GOT_VERSION): New constants.
        (FAKE_CALL_REGNO): Rename to...
        (GOT_VERSION_REGNUM): ...this.
        (type): Add "ghost" value.  Add an associated insn reservation.
        (hazard_set): Remove.
        (exception_receiver): Rename to...
        (restore_gp): ...this and update the unspec identifier accordingly.
        (exception_receiver, nonlocal_got_receiver): New expanders.
        (load_call<mode>): Use GOT_VERSION_REGNUM.  Don't set
        FAKE_CALL_REGNO.  Remove hazard_set attribute.
        (set_got_version, update_got_version): New patterns.

2008-01-26  Danny Smith  <dannysmith@users.sourceforge.net>

        PR target/34970
        * config/i386/cygming.h (ASM_OUTPUT_LABELREF): Define.

2008-01-25  Joseph Myers  <joseph@codesourcery.com>

        PR other/31955
        * doc/install.texi2html: Generate gcc-vers.texi.

2008-01-25  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.h (ASM_PREFERRED_EH_DATA_FORMAT): Define.

2008-01-25  Joseph Myers  <joseph@codesourcery.com>

        * config/c4x: Remove directory.
        * config.gcc (crx-*, mt-*): Mark obsolete.
        (c4x-*, tic4x-*, c4x-*-rtems*, tic4x-*-rtems*, c4x-*, tic4x-*,
        h8300-*-rtemscoff*, ns32k-*-netbsdelf*, ns32k-*-netbsd*,
        sh-*-rtemscoff*): Remove cases.
        * defaults.h (C4X_FLOAT_FORMAT): Remove.
        * real.c (encode_c4x_single, decode_c4x_single,
        encode_c4x_extended, decode_c4x_extended, c4x_single_format,
        c4x_extended_format): Remove.
        * real.h (c4x_single_format, c4x_extended_format): Remove.
        * doc/extend.texi (interrupt, naked): Remove mention of attributes
        on C4x.
        (Pragmas): Remove comment about c4x pragmas.
        * doc/install.texi (c4x): Remove target-specific instructions.
        * doc/invoke.texi (TMS320C3x/C4x Options): Remove.
        * doc/md.texi (Machine Constraints): Remove C4x documentation.
        * doc/tm.texi (MEMBER_TYPE_FORCES_BLK, c_register_pragma): Do not
        refer to C4x source files as examples.
        (C4X_FLOAT_FORMAT): Remove documentation.

2008-01-25  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.c (override_options): Reorder tests so that
        flag_pic gets enabled for -msep-data.

2008-01-25  Richard Guenther  <rguenther@suse.de>

        PR middle-end/32244
        * expr.c (expand_expr_real_1): Reduce result of LSHIFT_EXPR
        to its bitfield precision if required.

2008-01-25  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/33880
        * tree-nested.c (walk_omp_for): New function.
        (convert_nonlocal_reference, convert_local_reference): Call
        walk_omp_for on OMP_FOR.
        (convert_call_expr): Call walk_body on OMP_FOR's
        OMP_FOR_PRE_INIT_BODY.

2008-01-25  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/34966
        * tree-ssa-math-opts.c (execute_cse_sincos_1): For all but
        default defs and PHI_NODEs we have to insert after the
        defining statement.

2008-01-24  Nick Clifton  <nickc@redhat.com>

        * config/stormy16/stormy16-lib2.c (MIN_UNITS_PER_WORD):
        Provide a default definition.
        (LIBGCC2_UNITS_PER_WORD): Likewise.

        * config/stormy16/stormy16.c: Include df.h for the prototype
        for df_regs_ever_live_p.
        (xstormy16_expand_builtin_va_start): Convert the stack offset
        into a component_ref and then use POINTER_PLUS_EXPR to add it
        to the incoming_virtual_args_rtx.
        (xstormy16_gimplify_va_arg_expr): Rename to
        xstormy16_gimplify_va_arg_expr.
        Use POINTER_PLUS_EXPR when performing pointer arithmetic.
        (TARGET_GIMPLIFY_VA_ARG_EXPR): Use renamed
        xstormy16_gimplify_va_arg_expr.
        Fix up some formatting issues.

        * config/stormy16/stormy16.c: (xstormy16_carry_plus_operand):
        Move to predicates.md.
        (xs_hi_general_operand): Likewise.
        (xs_hi_nonmemory_operand): Likewise.
        * config/stormy16/predicates.md:
        (xstormy16_carry_plus_operand): New predicate.
        (xs_hi_general_operand): New predicate.
        (xs_hi_nonmemory_operand): New predicate.
        * config/stormy16/stormy16-protos.h:
        (xstormy16_carry_plus_operand): Delete prototype.
        (xs_hi_general_operand): Likewise.
        (xs_hi_nonmemory_operand): Likewise.

        * config/storm16/stormy16.md (addhi3): Remove earlyclobber
        modifiers as they are no longer needed and they can trigger
        reload spill failures.

        * config/storm16/stormy16.md (ineqbranchsi): Replace match_dup
        with a match_operand in order to help reload.

        * config/storm16/stormy16.md (movhi_internal): Replace 'r'
        constraint with 'e' for the 8th alternative as this version of
        the mov.w instruction only accepts the lower 8 registers.

2008-01-25  Uros Bizjak  <ubizjak@gmail.com>

        PR target/34856
        * simplifx-rtx.c (simplify_const_binary_operation) [VEC_CONCAT]:
        Consider only CONST_INT, CONST_DOUBLE and CONST_FIXED as constant
        vector elements.

2008-01-25  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/33333
        * gimplify.c (gimplify_omp_for): Gimplify OMP_FOR_PRE_BODY.

2008-01-25  Golovanevsky Olga  <olga@il.ibm.com>

        * ipa-struct-reorg.c (remove_str_allocs_in_func, remove_str_allocs):
        New functions.
        (remove_structure): Update allocations list before removing structure.
        
2008-01-25  Golovanevsky Olga  <olga@il.ibm.com>

        * ipa-struct-reorg.c (is_safe_cond_expr, 
        create_new_stmts_for_cond_expr): Use integer_zerop function,
        that recognize not only zero-pointer, but zero-integer too.

2008-01-25  Ben Elliston  <bje@au.ibm.com>

        PR other/22232
        * fixproto: Escape "." in sed expression that strips leading "./".

2008-01-24  H.J. Lu  <hongjiu.lu@intel.com>

        PR driver/34904
        * gcc.c (SWITCH_OK): Removed.
        (SWITCH_LIVE): Changed to bit.
        (SWITCH_FALSE): Likewise.
        (SWITCH_IGNORE): Likewise.
        (switchstr): Change live_cond to unsigned int.
        (process_command): Replace SWITCH_OK with 0.
        (do_self_spec): Likewise.
        (set_collect_gcc_options): Check the SWITCH_IGNORE bit.
        (give_switch): Likewise.
        (used_arg): Likewise.
        (do_spec_1): Set the SWITCH_IGNORE bit.
        (check_live_switch): Check both SWITCH_LIVE and SWITCH_FALSE
        bits.  Set the SWITCH_LIVE bit.

2008-01-24  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.h (MOVE_RATIO): Define new target macro.

2008-01-24  Richard Sandiford  <rsandifo@nildram.co.uk>

        PR tree-optimization/34472
        * ipa-struct-reorg.c (safe_cond_expr_check): Change the DATA
        parameter to a "bool *" and set *DATA to false if there is
        an unsafe access.  Do not delete the structure here.
        (check_cond_exprs): Delete it here instead.
        (check_cond_exprs, exclude_cold_structs): Do not increase
        I when removing a structure.

2008-01-24  Uros Bizjak  <ubizjak@gmail.com>

        PR target/34856
        * config/i386/i386.c (ix86_expand_vector_init): Consider only
        CONST_INT, CONST_DOUBLE and CONST_FIXED as constant vector elements.

2008-01-24  Jakub Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/34934
        * tree-stdarg.c (reachable_at_most_once): Use VEC vector instead of
        a fixed vector for stack.

2008-01-24  Ben Elliston  <bje@au.ibm.com>

        PR c++/25701
        * doc/gcc.texi (Software development): Add a direntry for g++.
        
2008-01-23  Hans-Peter Nilsson  <hp@axis.com>

        * config/cris/cris.h (CC1PLUS_SPEC, OPTIMIZATION_OPTIONS): Drop
        stale and straggling -fforce-addr comments above.

        * config/cris/cris.h (CRIS_SUBTARGET_VERSION, TARGET_VERSION): Don't
        define.
        * config/cris/linux.h (CRIS_SUBTARGET_VERSION): Don't define.
        * config/cris/aout.h (CRIS_SUBTARGET_VERSION): Don't define.

2008-01-23  Michael Matz  <matz@suse.de>

        PR debug/34895
        * dwarf2out.c (force_type_die): Use modified_type_die instead of
        gen_type_die.

2008-01-23  Andreas Krebbel  <krebbel1@de.ibm.com>

        * ipa-struct-reorg.c (create_new_malloc): Use pointer type as
        malloc result type.

2008-01-23 Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.c (avr_current_arch): New variable.
        (avr_arch_types): Add 'avr31' and 'avr51' entries.
        (avr_arch): Add 'ARCH_AVR31' and 'ARCH_AVR51'.
        (avr_mcu_types): Add 'avr31' and 'avr51' architectures.
        (avr_override_options): Init 'avr_current_arch'. 
        (base_arch_s): Move from here...
        * config/avr/avr.h (base_arch_s): ... here. Add new members 
        'have_elpm', 'have_elpmx', 'have_eijmp_eicall', 'reserved'. Rename 
        'mega' to 'have_jmp_call'.
        (TARGET_CPU_CPP_BUILTINS): Define "__AVR_HAVE_JMP_CALL__", 
        "__AVR_HAVE_RAMPZ__",   "__AVR_HAVE_ELPM__" and  "__AVR_HAVE_ELPMX__"
        macros.
        (LINK_SPEC, CRT_BINUTILS_SPECS, ASM_SPEC): Add 'avr31' and 'avr51' 
        architectures.
        * config/avr/t-avr (MULTILIB_OPTIONS, MULTILIB_DIRNAMES, 
        MULTILIB_MATCHES): (Ditto.).

2008-01-23  Richard Guenther  <rguenther@suse.de>

        PR middle-end/31529
        * cgraphunit.c (cgraph_reset_node): Always mark the node
        not reachable if it is not queued already.

2008-01-23  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin-protos.h (WA_RETS, ENABLE_WA_RETS): New macros.
        * config/bfin/bfin.c (bfin_cpus): Add WA_RETS everywhere.
        (cputype_selected): New static variable.
        (bfin_handle_option): Set it if -mcpu is used.
        (override_option): Select default set of workarounds if no cpu type
        selected on the command line.
        (workaround_rts_anomaly): Only run if ENABLE_WA_RETS.

        From  Michael Frysinger  <michael.frysinger@analog.com>
        * config/bfin/bfin-protos.h (enum bfin_cpu_type): Add
        BFIN_CPU_BF547, BFIN_CPU_BF523, BFIN_CPU_BF524, and BFIN_CPU_BF526.

        * config/bfin/elf.h (LIB_SPEC): Use proper linker script
        for bf547, bf523, bf524, and bf526.
        * config/bfin/bfin.c (bfin_cpus[]): Add bf547,  bf523, bf524, and
        bf526.
        * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): Define
        __ADSPBF523__ for bf523, __ADSPBF524__ for bf524,
        __ADSPBF526__ for bf526, __ADSPBF52x__ for all three, as well as
        __ADSPBF547__ and __ADSPBF54x__ for bf547.
        * doc/invoke.texi (Blackfin Options): Document that
        -mcpu now accept bf547, bf523, bf524, and bf526.

2008-01-22  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/34628
        * combine.c (try_combine): Stop and undo after the first combination
        if an autoincrement side-effect on the first insn has effectively
        been lost.

2008-01-22  David Edelsohn  <edelsohn@gnu.org>

        PR target/34529
        * config/rs6000/rs6000.c (rs6000_legitimate_offset_address_p):
        Offset addresses are not valid for Altivec or paired float modes.

2008-01-22  Jakub Jelinek  <jakub@redhat.com>

        PR c++/34607
        * c-parser.c (c_parser_omp_for_loop): Don't call c_finish_omp_for
        if DECL_INITIAL (decl) is error_mark_node.

        PR c++/34914
        * c-common.c (handle_vector_size_attribute): Only allow
        integral, scalar float and fixed point types.  Handle OFFSET_TYPE
        the same way as pointer, array etc. types.
        * tree.c (reconstruct_complex_type): Handle OFFSET_TYPE.

        PR c++/34917
        * tree.c (build_type_attribute_qual_variant): Call
        build_qualified_type if attributes are equal, but quals are not.

2008-01-22  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR 32102
        * doc/invoke.texi (-Wall): -Wall enables -Wstrict-overflow=1.
        * flags.h (warn_strict_aliasing): Remove.
        (warn_strict_overflow): Remove.
        * opts.c (warn_strict_aliasing): Remove.
        (warn_strict_overflow): Remove.
        * c-opts.c (c_common_handle_option): -Wall only sets
        -Wstrict-aliasing or -Wstrict-overflow if they are uninitialized.
        (c_common_post_options): Give default values to -Wstrict-aliasing
        and -Wstrict-overflow if they are uninitialized.
        * common.opt (Wstrict-aliasing): Specify Var and Init.
        (Wstrict-overflow): Likewise.

2008-01-22  Kenneth Zadeck <zadeck@naturalbridge.com>

        PR rtl-optimization/26854
        PR rtl-optimization/34400
        PR rtl-optimization/34884
        * ddg.c (create_ddg_dep_from_intra_loop_link): Use
        DF_RD->gen.
        * df.h (df_changeable_flags.DF_RD_NO_TRIM): Deleted
        (df_rd_bb_info.expanded_lr_out): Deleted
        * loop_invariant.c (find_defs): Deleted DF_RD_NO_TRIM flag.
        * loop_iv.c (iv_analysis_loop_init): Ditto.  * df-problems.c
        (df_rd_free_bb_info, df_rd_alloc, df_rd_confluence_n,
        df_rd_bb_local_compute, df_rd_transfer_function, df_rd_free):
        Removed code to allocate, initialize or free expanded_lr_out.
        (df_rd_bb_local_compute_process_def): Restructured to make more
        understandable.
        (df_rd_confluence_n): Removed code to no apply invalidate_by_call
        sets if the sets are being trimmed.

2008-01-22  H.J. Lu  <hongjiu.lu@intel.com>

        PR bootstrap/32287
        * configure.ac (ld_vers): Support GNU linker version xx.xx.*
        (as_vers): Likewise.
        * configure: Regenerated.

2008-01-22  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR middle-end/33092
        * tree-pass.h (pass_build_alias): New pass.
        * tree-ssa-alias.c (gate_build_alias): New.
        (pass_build_alias): New.
        * passes.c (init_optimization_passes): Add pass_build_alias after
        pass_create_structure_vars.

2008-01-22  Wolfgang Gellerich  <gellerich@de.ibm.com>

        * config/s390/s390.h (S390_TDC_POSITIVE_NORMALIZED_NUMBER):
        Renamed to S390_TDC_POSITIVE_NORMALIZED_BFP_NUMBER.
        (S390_TDC_NEGATIVE_NORMALIZED_NUMBER): Renamed to
        S390_TDC_NEGATIVE_NORMALIZED_BFP_NUMBER.
        (S390_TDC_POSITIVE_DENORMALIZED_NUMBER): Renamed to
        S390_TDC_POSITIVE_DENORMALIZED_BFP_NUMBER.
        (S390_TDC_NEGATIVE_DENORMALIZED_NUMBER): Renamed to
        S390_TDC_NEGATIVE_DENORMALIZED_BFP_NUMBER.
        (S390_TDC_POSITIVE_NORMALIZED_BFP_NUMBER): New constant.
        (S390_TDC_NEGATIVE_NORMALIZED_BFP_NUMBER): New constant.
        (S390_TDC_POSITIVE_DENORMALIZED_BFP_NUMBER): New constant.
        (S390_TDC_NEGATIVE_DENORMALIZED_BFP_NUMBER): New constant.
        * config/s390/s390.md (FP_ALL): New mode iterator.
        (_d): New mode attribute.
        ("*signbit<mode>2>"): Changed mode of first operand.
        ("isinf<mode>2"): Changed mode of first operand.
        ("*TDC_insn"): Adaptation for DFP modes.

2008-01-22  Ben Elliston  <bje@au.ibm.com>

        * tree.c (check_qualified_type): Improve function description.

2008-01-21  Jason Merrill  <jason@redhat.com>

        PR c++/34196
        * tree.h (TRY_CATCH_IS_CLEANUP): New macro.
        * tree-eh.c (honor_protect_cleanup_actions): Strip TRY_CATCH_EXPR
        if it is set.

2008-01-21  DJ Delorie  <dj@redhat.com>

        * doc/tm.texi (HARD_REGNO_NREGS): Note that this macro must not
        return zero.

2008-01-21  Richard Guenther  <rguenther@suse.de>

        PR middle-end/34856
        * tree-cfg.c (verify_expr): Allow all invariant expressions
        instead of just constant class ones as reference argument.
        * tree-ssa-loop-im.c (for_each_index): Handle CONSTRUCTOR
        like any other constant.
        * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Likewise.

2008-01-21  H.J. Lu  <hongjiu.lu@intel.com>

        * regmove.c (fixup_match_1): Update call crossed frequencies.

2008-01-21  Richard Guenther  <rguenther@suse.de>

        PR c/34885
        * tree-inline.c (setup_one_parameter): Deal with mismatched
        types using a VIEW_CONVERT_EXPR.

2008-01-21  Alon Dayan  <alond@il.ibm.com>
            Olga Golovanevsky  <olga@il.ibm.com>
        
        PR tree-optimization/34701
        * ipa-struct-reorg.c (gen_size): Fix the malloc parameter calculation
        when the structure size is not a power of 2.

2008-01-20  Kenneth Zadeck <zadeck@naturalbridge.com>

        * doc/install.texi: Add doc for --enable-checking=df.
        
2008-01-20  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR rtl-optimization/34808
        * emit-rtl.c (try_split): Handle REG_RETVAL notes.

2008-01-20  Richard Sandiford  <rsandifo@nildram.co.uk>

        * global.c (find_reg): Only compute EH_RETURN_DATA_REGNO once per
        input.

2008-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>

        PR rtl-optimization/26854
        PR rtl-optimization/34400
        * ddg.c (create_ddg_dep_from_intra_loop_link): Do not use
        DF_RD->gen.
        * df.h (df_changeable_flags.DF_RD_NO_TRIM): New.
        (df_rd_bb_info.expanded_lr_out): New.
        * loop_invariant.c (find_defs): Added DF_RD_NO_TRIM flag.
        * loop_iv.c (iv_analysis_loop_init): Ditto.
        * df-problems.c (df_rd_free_bb_info, df_rd_alloc, df_rd_confluence_n,
        df_rd_bb_local_compute, df_rd_transfer_function, df_rd_free):
        Added code to allocate, initialize or free expanded_lr_out.
        (df_rd_bb_local_compute_process_def): Restructured to make
        more understandable.
        (df_rd_confluence_n): Add code to do nothing with fake edges and
        code to no apply invalidate_by_call sets if the sets are being trimmed.
        (df_lr_local_finalize): Renamed to df_lr_finalize.
        (df_live_local_finalize): Renamed to df_live_finalize.

2008-01-20  Richard Sandiford  <rsandifo@nildram.co.uk>

        PR target/34831
        * config/mips/mips.md (div<mode>3): Use <recip_condition> when
        deciding whether to use reciprocal instructions.

2008-01-19  Uros Bizjak  <ubizjak@gmail.com>

        * dwarf2out.c (dwarf2out_switch_text_section): Do not call
        dwarf2out_note_section_used if cold_text_section is NULL.

2008-01-19  Jakub Jelinek  <jakub@redhat.com>

        PR gcov-profile/34610
        * tree-cfg.c (make_edges): Mark both outgoing edges from
        OMP_CONTINUE and from OMP_FOR as EDGE_ABNORMAL.
        * omp-low.c (expand_omp_for): Clear EDGE_ABNORMAL bits
        from OMP_FOR and OMP_CONTINUE outgoing edges.

        * tree-profile.c (tree_profiling): Return early if
        cfun->after_tree_profile != 0.  Set cfun->after_tree_profile
        at the end.
        * omp-low.c (expand_omp_parallel): Copy after_tree_profile
        from cfun to child_cfun.
        * function.h (struct function): Add after_tree_profile bit.

2008-01-19 Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.S (_exit): Disable interrupt.

2008-01-18  Kenneth Zadeck  <zadeck@naturalbridge.com>
            Steven Bosscher  <stevenb.gcc@gmail.com>

        PR rtl-optimization/26854
        PR rtl-optimization/34400
        * df-problems.c (df_live_scratch): New scratch bitmap.
        (df_live_alloc): Allocate df_live_scratch when doing df_live.
        (df_live_reset): Clear the proper bitmaps.
        (df_live_bb_local_compute): Only process the artificial defs once
        since the order is not important.
        (df_live_init): Init the df_live sets only with the variables
        found live by df_lr.
        (df_live_transfer_function): Use the df_lr sets to prune the
        df_live sets as they are being computed.  
        (df_live_free): Free df_live_scratch.

2008-01-18  Ian Lance Taylor  <iant@google.com>

        * common.opt: Add fmerge-debug-strings.
        * dwarf2out.c (DEBUG_STR_SECTION_FLAGS): Test
        flag_merge_debug_strings rather than flag_merge_constants.
        * doc/invoke.texi (Option Summary): Mention
        -fmerge-debug-strings.
        (Debugging Options): Document -fmerge-debug-strings.

2008-01-18  Ian Lance Taylor  <iant@google.com>

        PR c++/33407
        * tree.h (DECL_IS_OPERATOR_NEW): Define.
        (struct tree_function_decl): Add new field operator_new_flag.
        * tree-inline.c (expand_call_inline): When inlining a call to
        operator new, force the return value to go into a variable, and
        set DECL_NO_TBAA_P on that variable.
        * c-decl.c (merge_decls): Merge DECL_IS_OPERATOR_NEW flag.

2008-01-18  Uros Bizjak  <ubizjak@gmail.com>

        PR debug/34484
        * dwarf2out.c (dwarf2out_switch_text_section): Do not guard with
        DWARF2_DEBUGGING_INFO.
        (dwarf2out_note_section_used): Ditto.  Add prototype.
        (have_multiple_function_sections, text_section_used,
        cold_text_section_used, *cold_text_sections): Move declarations
        before their uses.

2008-01-17  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/unwind-dw2-xtensa.h (_Unwind_FrameState): Remove pc
        field and add signal_ra.
        * config/xtensa/unwind-dw2-xtensa.c (uw_frame_state_for): Remove
        assignments to frame state pc.  Move end of stack check after
        MD_FALLBACK_FRAME_STATE_FOR.
        (uw_update_context_1): Use frame state signal_regs if set, instead
        of checking signal_frame flag.
        (uw_update_context): Use frame state signal_ra if set.
        * config/xtensa/linux.h (MD_UNWIND_SUPPORT): Define.
        * config/xtensa/linux-unwind.h: New file.

2008-01-18  Bernhard Fischer  <aldot@gcc.gnu.org>

        * modulo-sched.c (get_sched_window): Fix comment typo.

2008-01-17  Andrew MacLeod  <amacleod@redhat.com>

        PR tree-optimization/34648
        * tree-ssa-sccvn.c (visit_use): Expressions which can throw are varying.

2008-01-17  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.h (LINK_SPEC): Support -mrelax and -mpmem-wrap-around.
        * config/avr/avr.opt (mrelax, mpmem-wrap-around): Add.

2008-01-17  Seongbae Park  <seongbae.park@gmail.com>

        PR rtl-optimization/34400
        * df-core.c (df_worklist_dataflow_overeager,
        df_worklist_dataflow_doublequeue): New functions.
        (df_worklist_dataflow): Two different worklist solvers.
        * params.def (PARAM_DF_DOUBLE_QUEUE_THRESHOLD_FACTOR):
        New param.

2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>

        PR testsuite/34821
        * doc/invoke.texi: Document the dependence on pthread for fopenmp
        and ftree-parallelize-loops.

2008-01-17  Mircea Namolaru  <namolaru@il.ibm.com>

        PR rtl-optimization/34826
        * loop-doloop (doloop_modify): Update the REG_BR_PROB note.

2008-01-17  Andreas Krebbel  <krebbel1@de.ibm.com>

        * global.c (find_reg): Mark the eh regs as used if necessary.
        * ra-conflict.c (global_conflicts): Set no_eh_reg flag.
        * ra.h (struct allocno): no_eh_reg field added.  Changed
        no_stack_reg type to bitfield.

2008-01-17  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.c (substitute_in_expr): Add missing 'break'.

2008-01-17  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/34825
        * tree-ssa-math-opts.c (is_division_by): Do not recognize
        x / x as division to handle.

2008-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa64-hpux.h (LIB_SPEC): Add "-lpthread" in shared links if "-mt" or
        "-pthread" is specified.
        * pa-hpux11.h (LIB_SPEC): Likewise.

2008-01-16  Janis Johnson  <janis187@us.ibm.com>
            Peter Bergner  <bergner@vnet.ibm.com>

        PR rtl-optimization/33796
        * sparseset.c (sparseset_alloc): Use xcalloc rather than xmalloc.

2008-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR libgfortran/34699
        * pa-hpux.h (LINK_SPEC): Only search /lib/pa1.1 and /usr/lib/pa1.1 on
        static links.
        * pa-hpux10.h (LINK_SPEC): Likewise.
        * pa-hpux11.h (LINK_SPEC): Don't search /lib/pa1.1 and /usr/lib/pa1.1.

2008-01-16  Richard Guenther  <rguenther@suse.de>

        PR middle-end/32628
        * fold-const.c (fold_convert_const_int_from_int): Do not
        set overflow if that occured only because of a sign extension
        change when converting from/to a sizetype with the same
        precision and signedness.

2008-01-16  Uros Bizjak  <ubizjak@gmail.com>

        PR debug/34249
        * dwarf2out.c (output_call_frame_info): Move output of FDE initial
        location address to the correct place.  Update copyright year.

2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>

        * lambda-code.c (lambda_transform_legal_p): Handle the case of
        no dependences in the dependence_relations vector.

2008-01-16  Jan Hubicka  <jh@suse.cz>

        PR rtl-optimization/31396
        * regstat.c (regstat_bb_compute_ri): Compute FREQ_CALLS_CROSSED.
        * cfg.c (dump_reg_info): Print it.
        * regs.h (struct reg_info_t): add freq_calls_crossed.
        (REG_FREQ_CALLS_CROSSED): New macro.
        * global.c (global_alloc): Compute freq_calls_crossed for allocno.
        (find_reg): Update call of CALLER_SAVE_PROFITABLE.
        * regmove.c (optimize_reg_copy_1, optimize_reg_copy_2, fixup_match_2,
        regmove_optimize): Update call crossed frequencies.
        * local-alloc.c (struct qty): Add freq_calls_crossed.
        (alloc_qty): Copute freq_calls_crossed.
        (update_equiv_regs, combine_regs): Update REG_FREQ_CALLS_CROSSED.
        (find_free_reg): Update call of CALLER_SAVE_PROFITABLE.
        * ra.h (struct allocno): Add freq_calls_crossed.

2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>

        * gcc.c (LINK_COMMAND_SPEC): Add includes and link options for
        libgomp when compiling with ftree-parallelize-loops.
        (GOMP_SELF_SPECS): Add -pthread for ftree-parallelize-loops.

2008-01-16  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/34769
        * tree-data-ref.c (initialize_matrix_A): Revert fix for PR34458.
        * tree.c (int_cst_value): Instead make this function more
        permissive in what it accepts as valid input.  Document this
        function always sign-extends the value.

2008-01-16  Jakub Jelinek  <jakub@redhat.com>
            Richard Guenther  <rguenther@suse.de>

        PR c/34668
        * gimplify.c (fold_indirect_ref_rhs): Rename to ...
        (gimple_fold_indirect_ref_rhs): ... this.
        (gimple_fold_indirect_ref): New function with foldings
        that preserve lvalueness.
        (gimplify_modify_expr_rhs): Call gimple_fold_indirect_ref_rhs.
        * tree-flow.h (gimple_fold_indirect_ref): Declare.
        * tree-inline.c (copy_body_r): Use gimple_fold_indirect_ref
        to fold an INDIRECT_REF, fall back to the old use of
        fold_indirect_ref_1.

2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-data-ref.c (subscript_dependence_tester_1): Call 
        free_conflict_function.
        (compute_self_dependence): Same.

2008-01-16  Uros Bizjak  <ubizjak@gmail.com>

        PR debug/34249
        * debug.h (dwarf2out_switch_text_section): Move declaration from ...
        * dwarf2out.c (dwarf2out_switch_text_section): ... here.  Make
        function global.
        * final.c (final_scan_insn) [NOTE_INSN_SWITCH_TEXT_SECTIONS]:
        Depending on dwarf2out_do_frame, call dwarf2out_switch_text_section
        for DWARF2_UNWIND_INFO targets.

2008-01-16  Richard Guenther  <rguenther@suse.de>

        PR c/34768
        * c-typeck.c (common_pointer_type): Do not merge inconsistent
        type qualifiers for function types.

2008-01-15  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        * tree-parloops.c (gen_parallel_loop): Fix ommision of declaration for
        loop_iterator li from previous commit.

2008-01-15  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-parloops.c (gen_parallel_loop): Free loop bound estimations.

2008-01-12  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-parloops.c (loop_has_blocks_with_irreducible_flag): New.
        (parallelize_loops): Don't parallelize irreducible components.

2008-01-14  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c++/24924
        * c-opts (c_common_post_options): Do not enable CPP
        flag_pedantic_errors by default.
        
2008-01-14  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/31944
        * cse.c (remove_pseudo_from_table): New function.
        (merge_equiv_classes): Use above function to remove pseudo-registers.
        (invalidate): Likewise.

2008-01-13  Richard Guenther  <rguenther@suse.de>

        PR middle-end/34601
        * emit-rtl.c (set_reg_attrs_for_decl_rtl): Use DECL_MODE
        instead of TYPE_MODE to deal with calls from expand_one_error_var.

2008-01-13  Uros Bizjak  <ubizjak@gmail.com>

        * gcse.c (cprop_jump): Call validate_unshare_change instead of
        validate_change to unshare the source of the PC set.

2008-01-12  Jan Hubicka  <jh@suse.cz>

        PR middle-end/32135
        * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Do not construct
        references above array bounds.  This might trigger bounds checks for
        pointers to arrays.

2008-01-12  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-ssa-ter.c (free_temp_expr_table): Free num_in_part and
        new_replaceable_dependencies.

2008-01-12  Doug Kwan  <dougkwan@google.com>

        * c-decl.c: (grokdeclarator): Use OPT_Wignored_qualifiers
        instead of OPT_Wreturn_type in warning due to ignored return type
        qualifiers.
        * c-opt.c (c_common_post_option): Add -Wignored-qualifiers to
        options included in -Wextra.
        * c.opt: New option -Wignored_qualifiers.
        * doc/invoke.texi (Warning Options, -Wextra): Add new option
        -Wignore_qualifiers.
        (-Wignored-qualifiers): Document.
        (-Wreturn-type): Remove description of functionality now handled
        by -Wignored-qualifiers.

2008-01-12  Eric Botcazou  <ebotcazou@adacore.com>

        PR ada/33788
        * fold-const.c (fold_unary) <VIEW_CONVERT_EXPR>: Fold an existing
        NOP_EXPR if it is between integral types with the same precision.

2008-01-12  Jan Hubicka  <jh@suse.cz>

        PR other/28023
        * invoke.texi (max-inline-recursive-depth): Fix default value.

2008-01-12  Zdenek Dvorak  <ook@ucw.cz>

        * tree-parloops.c (transform_to_exit_first_loop): Cast nit to the
        correct type.

2008-01-11  Bob Wilson  <bob.wilson@acm.org>
        
        * config/xtensa/xtensa.c (override_options): Set flag_shlib.
        
2008-01-11  James E. Wilson  <wilson@specifix.com>

        PR target/26015
        * config/vax/elf.h (FRAME_POINTER_CFA_OFFSET): Define.

2008-01-11  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.c (expand_prologue, expand_epilogue): Don't 
        save/restore frame pointer register and don't use 'call-prologues' 
        optimization in function with "OS_task" attribute.

2008-01-11  Eric Botcazou  <ebotcazou@adacore.com>

        PR middle-end/31309
        * expr.c (copy_blkmode_from_reg): Use a mode suited to the size
        when copying to memory.

2008-01-11  Steven Bosscher  <stevenb.gcc@gmail.com>

        PR rtl-optimization/30905
        * cfgcleanup.c: Include dce.h
        (crossjumps_occured): New global variable.
        (try_crossjump_bb): Exit loop after finding a fallthru edge.
        If something changed, set crossjumps_occured to true.
        (try_optimize_cfg): Clear crossjumps_occured at the beginning.
        Don't add/remove fake edges to exit here...
        (cleanup_cfg): ...but do it here, when crossjumping.
        Run a fast DCE when successful crossjumps occured in the latest
        iteration of try_optimize_cfg.

2008-01-11  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-sccvn.c (struct vn_binary_op_s): Move hashcode near opcode.
        (struct vn_unary_op_s): Likewise.
        (vn_reference_insert): Free old reference on hash collision.

2008-01-10  Raksit Ashok  <raksit@google.com>

        PR rtl-optimization/27971
        * combine.c (find_split_point): Split PLUS expressions which are
        inside a MEM rtx, and whose first operand is complex.

2008-01-10  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.c (m32c_hard_regno_nregs_1): Renamed from...
        (m32c_hard_regno_nregs): ...this, which is now a wrapper.
        (m32c_hard_regno_ok): Call the underlying function.

2008-01-10  Richard Guenther  <rguenther@suse.de>

        PR middle-end/34683
        * tree-cfg.c (tree_merge_blocks): Do not go through the
        full-blown folding and stmt updating path if we just deal
        with virtual operands.
        * tree-ssa-copy.c (may_propagate_copy): Do not short-cut
        test for abnormal SSA_NAMEs.

2008-01-10  Andreas Krebbel  <krebbel1@de.ibm.com>

        PR middle-end/34641
        * reload.c (push_reload): Add assertions.  All constants from
        reg_equiv_constant should have been used for replacing the respective
        pseudo earlier.
        (find_reloads_address): Invoke find_reloads_address_part for
        constant taken from the reg_equiv_constant array.

2008-01-10  Steven Bosscher  <stevenb.gcc@gmail.com>

        * tree-ssa-sccvn.h (struct vn_ssa_aux): Make the most accessed
        field (valnum) the first in the struct.  Replace bools with
        unit bit fields.

2008-01-10  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/34651
        * tree-sra.c (sra_build_assignment): Sanitize.  Use the correct
        types and ordering for masking and converting.

2008-01-09  Sebastian Pop  <sebastian.pop@amd.com>

        PR tree-optimization/34017
        * lambda-code.c (lambda_loopnest_to_gcc_loopnest): Generate code
        also for PHI_NODE expressions.

2008-01-09  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/34708
        * tree-inline.c (estimate_num_insns_1): Compute cost of SWITCH_EXPR
        based on number of case labels.
        (init_inline_once): Remove switch_cost.
        * tree-inline.h (eni_weights_d): Remove switch_cost.

2008-01-09  Richard Guenther  <rguenther@suse.de>
        Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/30132
        * gimplify.c (gimplify_cond_expr): Do not create an addressable
        temporary if an rvalue is ok or an lvalue is not required.

2008-01-09  Richard Guenther  <rguenther@suse.de>

        PR middle-end/34458
        * tree-data-ref.c (initialize_matrix_A): Use tree_low_cst,
        adjust return type.

2008-01-09  Richard Guenther  <rguenther@suse.de>

        PR middle-end/34679
        * tree.c (host_integerp): Check for sizetype only if the
        type is an integer type.

2008-01-09  Steven Bosscher  <stevenb.gcc@gmail.com>

        PR debug/26364
        * opts.c (decode_options): Disable inlining of functions called
        once if not in unit-at-a-time mode.

2008-01-09  Alexandre Oliva  <aoliva@redhat.com>

        * Makefile.in (dse.o): Remove duplicate $(RECOG_H) dependency.

2008-01-08  Richard Guenther  <rguenther@suse.de>

        PR middle-end/31863
        * tree-ssa-structalias.c (push_fields_onto_fieldstack): Bail
        out early if the result will be unused.

2008-01-08  Uros Bizjak  <ubizjak@gmail.com>

        PR target/34709
        Revert:

        2008-01-05  Uros Bizjak  <ubizjak@gmail.com>
        * config/i386/i386.c (ix86_builtin_reciprocal): Remove check
        for TARGET_RECIP.       
        
2008-01-08  Jan Sjodin  <jan.sjodin@amd.com>
        
        * config/i386/i386.c (k8_cost, amdfam10_cost): Branch costs
        for vectorization tuned.
        
2008-01-08  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/34683
        * tree-ssa-operands.c (operand_build_cmp): Export.
        * tree-ssa-operands.h (operand_build_cmp): Declare.
        * tree-vn.c (vuses_compare): Remove.
        (sort_vuses): Use operand_build_cmp.
        (sort_vuses_heap): Likewise.
        * tree-ssa-sccvn.c (vuses_to_vec): Use VEC_reserve, not VEC_alloc
        to re-use old VEC if available.  Do not sort already sorted VUSEs.
        (vdefs_to_vec): Do not sort already sorted VDEFs.

2008-01-08  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/34694
        * omp-low.c (copy_var_decl): Copy also DECL_SOURCE_LOCATION.

2008-01-08  Uros Bizjak  <ubizjak@gmail.com>

        PR target/34702
        * doc/invoke.texi (i386 and x86-64 Options) [mrecip]: Document
        limitations of reciprocal sequences on x86 targets.

2008-01-08  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/34683
        * tree-flow-inline.h (var_ann): Remove overzealous asserts.

2008-01-07  Jakub Jelinek  <jakub@redhat.com>

        PR target/34622
        * config/darwin.c (darwin_mergeable_string_section): Don't use
        .cstring if int_size_in_bytes != TREE_STRING_LENGTH.

2008-01-07  Uros Bizjak  <ubizjak@gmail.com>

        PR target/34682
        * config/i386/i386.md (neg<mode>2): Rename from negsf2, negdf2 and
        negxf2.  Macroize expander using X87MODEF mode iterator.  Change
        predicates of op0 and op1 to register_operand.
        (abs<mode>2): Rename from abssf2, absdf2 and negxf2.  Macroize
        expander using X87MODEF mode iterator.  Change predicates of
        op0 and op1 to register_operand.
        ("*absneg<mode>2_mixed", "*absneg<mode>2_sse"): Rename from
        corresponding patterns and macroize using MODEF macro.  Change
        predicates of op0 and op1 to register_operand and remove
        "m" constraint. Disparage "r" alternative with "!".
        ("*absneg<mode>2_i387"): Rename from corresponding patterns and
        macroize using X87MODEF macro.  Change predicates of op0 and op1
        to register_operand and remove "m" constraint.  Disparage "r"
        alternative with "!".
        (absneg splitter with memory operands): Remove.
        ("*neg<mode>2_1", "*abs<mode>2_1"): Rename from corresponding
        patterns and macroize using X87MODEF mode iterator.
        * config/i386/sse.md (negv4sf2, absv4sf2, neg2vdf2, absv2df2):
        Change predicate of op1 to register_operand.
        * config/i386/i386.c (ix86_expand_fp_absneg_operator): Remove support
        for memory operands.

2008-01-07  Nathan Froyd  <froydnj@codesourcery.com>

        * config/rs6000/rs6000.h (ASM_CPU_SPEC): Add clause for mcpu=8548.

2008-01-07  Richard Guenther  <rguenther@suse.de>

        * basic-block.h (struct edge_def): Pair dest_idx with goto_locus
        fields.

2008-01-07  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/34683
        * tree-ssa-sccvn.c (vuses_to_vec): Pre-allocate the vector of
        VOPs of the needed size to save memory.  Use VEC_quick_push
        to save compile-time.
        (vdefs_to_vec): Likewise.

2008-01-07  Sa Liu  <saliu@de.ibm.com>

        * config/spu/spu.md (divdf3): Genetate inline code for double
        division.  The implementation doesn't handle INF or NAN, therefore it
        only applies when -ffinite-math-only is given.

2008-01-06  Paolo Carlini  <pcarlini@suse.de>

        PR libstdc++/34680
        * c-cppbuiltin.c (c_cpp_builtins): Define __GXX_RTTI, if appropriate.
        * doc/cpp.texi ([Common Predefined Macros]): Document.

2008-01-06  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_emit_swsqrtsf): Use negative constants in
        order to use commutative addition instead of subtraction.

2008-01-06  Andrew Pinski  <andrew_pinski@playstation.sony.com>
            Mircea Namolaru  <namolaru@il.ibm.com>
            Vladimir Yanovsky  <yanov@il.ibm.com>
            Revital Eres  <eres@il.ibm.com>

        PR tree-optimization/34263
        * tree-outof-ssa.c (process_single_block_loop_latch,
        contains_tree_r): New functions.
        (analyze_edges_for_bb): Call process_single_block_loop_latch
        function to empty single-basic-block latch block if possible.

2008-01-05  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_builtin_reciprocal): Remove check
        for TARGET_RECIP.
        (ix86_emit_swsqrtsf): Do not filter out infinity for rsqrt expansion.

2008-01-05  Richard Sandiford  <rsandifo@nildram.co.uk>

        * c-omp.c (check_omp_for_incr_expr): Handle CONVERT_EXPR.

2008-01-05  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.c (mips_in_small_data_p): Reinstate size > 0 check.

2008-01-05  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/34618
        * tree-outof-ssa.c (create_temp): Copy over DECL_GIMPLE_REG_P
        flag from T.

2008-01-05  Uros Bizjak  <ubizjak@gmail.com>

        PR target/34673
        * config/i386/i386.c (ix86_emit_swsqrtsf): Swap input operands
        in the call to gen_rtx_NE.  Remove unneeded VECTOR_MODE_P check.
        Update copyright year.

        * config/i386/i386.md (rsqrtsf2): Enable for TARGET_SSE_MATH.
        Update copyright year.
        * config/i386/sse.md (rsqrtv4sf2): Ditto. Unconditionally expand
        using NR fixup.

2008-01-05  Zhouyi Zhou  <zhouzhouyi@FreeBSD.org>

        * tree-vrp.c (find_conditional_asserts): Remove redundant check that
        edge does not point to current bb before changing need_assert.

2008-01-04  Richard Guenther  <rguenther@suse.de>

        PR middle-end/34029
        * tree-cfg.c (verify_expr): Do not look inside ADDR_EXPRs
        for verifying purposes if they are is_gimple_min_invariant.

2008-01-04  Aldy Hernandez  <aldyh@redhat.com>

        PR tree-optimization/34448
        PR tree-optimization/34465
        * gimplify.c (gimplify_init_constructor): Add new parameter
        notify_temp_creation.  Use it.
        (gimplify_modify_expr_rhs): Take volatiles into account when
        optimizing constructors.
        Do not optimize constructors if gimplify_init_constructor will dump to
        memory.
        * gcc.dg/tree-ssa/pr32901.c: Tests const volatiles.
        * gcc.c-torture/compile/pr34448.c: New.

2008-01-04  Jakub Jelinek  <jakub@redhat.com>

        PR gcov-profile/34609
        * tree-inline.c (declare_return_variable): Set TREE_ADDRESSABLE on
        return_slot if result is TREE_ADDRESSABLE.

2008-01-04  Richard Sandiford  <rsandifo@nildram.co.uk>

        * config/mips/mips.md (sqrt_condition): Tweak comment.
        (recip_condition): Likewise.  Require TARGET_FLOAT64 for DFmode.

2008-01-03  Tom Tromey  <tromey@redhat.com>

        PR c/34457
        * c-common.c (c_type_hash): Handle VLAs.

2008-01-03  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/31081
        * tree-inline.c (remap_ssa_name): Initialize uninitialized SSA vars to
        0 when inlining and not inlining to first basic block.
        (remap_decl): When var is initialized to 0, don't set default_def.
        (expand_call_inline): Set entry_bb.
        * tree-inline.h (copy_body_data): Add entry_bb.

2008-01-03  Jakub Jelinek  <jakub@redhat.com>

        PR c++/34619
        * cgraphunit.c (cgraph_build_static_cdtor): set_cfun back to NULL
        before returning.

        PR tree-optimization/29484
        * tree-inline.c (inline_forbidden_p_2): New function.
        (inline_forbidden_p): Disallow inlining if some static var
        has an address of a local LABEL_DECL in its initializer.
        * doc/extend.texi (Labels as Values): Document &&foo behaviour
        vs. inlining.

2008-01-03  Sebastian Pop  <sebastian.pop@amd.com>

        PR tree-optimization/34635
        * tree-data-ref.c (add_other_self_distances): Make sure that the
        evolution step is constant.

2008-01-03  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/34608
        * omp-low.c (expand_omp_parallel): Purge dead EH edges in the child fn.

2008-01-02  Richard Sandiford  <rsandifo@nildram.co.uk>

        * tree-sra.c (scalarize_init): Insert the generate_element_init
        statements after the generate_element_zero statements.

2008-01-02  Richard Guenther  <rguenther@suse.de>

        PR middle-end/34093
        PR middle-end/31976
        * tree-ssa-operands.c (ssa_operand_alloc): Also allocate a buffer
        for very large number of operands instead of ICEing.

2008-01-02  Arthur Norman <acn1@cam.ac.uk>

        PR target/34013
        * config/i386/i386.c (ix86_expand_prologue): Save red-zone
        while stack probing.

2008-01-01  Douglas Gregor  <doug.gregor@gmail.com>

        * c-opts.c (sanitize_cpp_opts): Don't warn about "long long" when
        in C++0x mode.

2008-01-01  Volker Reichelt  <v.reichelt@netcologne.de>

        PR libmudflap/26442
        * tree-mudflap.c (mx_register_decls): Guard warning by
        !DECL_ARTIFICIAL check.

2008-01-01  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (sse5_pperm, sse5_pperm_pack_v2di_v4si,
        sse5_pperm_pack_v4si_v8hi, sse5_pperm_pack_v8hi_v16qi,
        sse5_perm<mode>): Fix constraints.