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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@142811 138bc75d-0d04-0410-961f-82ee72b054a4
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* doc/tm.texi (TARGET_IRA_COVER_CLASSES): Modify description.
* doc/invoke.texi (-fira-region): Describe new option.
(-fira-algorithm): Change the values.
* ira-conflicts.c (build_conflict_bit_table,
build_allocno_conflicts): Use ira_reg_classes_intersect_p.
(ira_build_conflicts): Use flag flag_ira_region instead of
flag_ira_algorithm. Prohibit usage of callee-saved likely spilled
base registers for allocnos crossing calls.
* flags.h (enum ira_algorithm): Redefine.
(enum ira_region): New.
(flag_ira_region): New.
* cfgloopanal.c (estimate_reg_pressure_cost): Use flag_ira_region
instead of flag_ira_algorithm.
* toplev.c (flag_ira_algorithm): Change the initial value.
(flag_ira_region): New.
* ira-int.h (ira_reg_classes_intersect_p,
ira_reg_class_super_classes): New.
* ira-color.c (update_copy_costs): Use
ira_reg_classes_intersect_p. Use right class to find hard reg
index.
(update_conflict_hard_regno_costs): Ditto. Add a new parameter.
(assign_hard_reg): Ditto. Pass additional argument to
update_conflict_hard_regno_costs. Do not uncoalesce for priority
coloring.
(allocno_priorities, setup_allocno_priorities,
allocno_priority_compare_func): Move before color_allocnos.
(color_allocnos): Add priority coloring. Use flag flag_ira_region
instead of flag_ira_algorithm.
(move_spill_restore): Check classes of the same reg allocno from
different regions.
(update_curr_costs): Use ira_reg_classes_intersect_p.
(ira_reassign_conflict_allocnos): Ditto.
* opts.c (decode_options): Always set up flag_ira. Set up
flag_ira_algorithm. Warn CB can not be used for architecture.
(common_handle_option): Modify code for -fira-algorithm. Add code
to process -fira-region.
* ira-lives.c (update_allocno_pressure_excess_length): Process
superclasses too.
(set_allocno_live, clear_allocno_live, mark_reg_live,
mark_reg_dead, process_bb_node_lives): Ditto.
* ira-emit.c (ira_emit): Fix insn codes.
* ira-build.c (propagate_allocno_info): Use flag flag_ira_region
instead of flag_ira_algorithm.
(allocno_range_compare_func): Ignore classes for priority
coloring.
(setup_min_max_conflict_allocno_ids): Ditto.
(ira_flattening): Use ira_reg_classes_intersect_p.
* genpreds.c (write_enum_constraint_num): Output
CONSTRAINT__LIMIT.
* common.opt (fira-algorithm): Modify.
(fira-region): New.
* ira.c (setup_class_hard_regs): Initialize.
(setup_cover_and_important_classes): Modify code setting class
related info for priority coloring.
(setup_class_translate): Ditto.
(ira_reg_classes_intersect_p, ira_reg_class_super_classes): New.
(setup_reg_class_intersect_union): Rename to
setup_reg_class_relations. Add code for setting up new variables.
(find_reg_class_closure): Do not check targetm.ira_cover_classes.
(ira): Use flag flag_ira_region instead of flag_ira_algorithm.
* ira-costs.c (common_classes): New.
(print_costs): Use flag flag_ira_region instead of
flag_ira_algorithm.
(find_allocno_class_costs): Ditto. Use common_classes. Translate
alt_class.
(ira_costs): Allocate/deallocate common_classes.
* config/m32c/m32.h (REG_ALLOC_ORDER): Add reg 19.
(REG_CLASS_CONTENTS, reg_class, REG_CLASS_NAMES): New entries for
R02A_REGS.
* reload1.c (choose_reload_regs): Use MODE_INT for partial ints in
smallest_mode_for_size.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@142610 138bc75d-0d04-0410-961f-82ee72b054a4
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* ira-costs.c (find_allocno_class_costs): Work out the maximum
allocno_costs value of the classees with the lowest total_costs
value. Use this to set ALLOCNO_COVER_CLASS_COST here...
(setup_allocno_cover_class_and_costs): ...rather than here.
Use the ALLOCNO_COVER_CLASS_COST for all registers in the
preferred class.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@142117 138bc75d-0d04-0410-961f-82ee72b054a4
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PR rtl-optimization/37397
* ira-int.h (struct ira_allocno): New member bad_spill_p.
(ALLOCNO_BAD_SPILL_P): New macro.
* ira-color.c (push_allocnos_to_stack): Check ALLOCNO_BAD_SPILL_P.
* ira-build.c (ira_create_allocno): Initialize
ALLOCNO_BAD_SPILL_P.
(create_cap_allocno, propagate_allocno_info,
remove_unnecessary_allocnos): Set up or update
ALLOCNO_BAD_SPILL_P.
(update_bad_spill_attribute): New function.
(ira_build): Call it.
* ira-costs.c (record_reg_classes): Set up ALLOCNO_BAD_SPILL_P.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@141860 138bc75d-0d04-0410-961f-82ee72b054a4
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PR rtl-optimizations/37948
* ira-int.h (struct ira_allocno_copy): New member constraint_p.
(ira_create_copy, ira_add_allocno_copy): New parameter.
* ira-conflicts.c (process_regs_for_copy): New parameter. Pass it
to ira_add_allocno_copy.
(process_reg_shuffles, add_insn_allocno_copies): Pass a new
parameter to process_regs_for_copy.
(propagate_copies): Pass a new parameter to ira_add_allocno_copy.
Fix typo in passing second allocno to ira_add_allocno_copy.
* ira-color.c (update_conflict_hard_regno_costs): Use head of
coalesced allocnos list.
(assign_hard_reg): Ditto. Check that assigned allocnos are not in
the graph.
(add_ira_allocno_to_bucket): Rename to add_allocno_to_bucket.
(add_ira_allocno_to_ordered_bucket): Rename to
add_allocno_to_ordered_bucket.
(push_ira_allocno_to_stack): Rename to push_allocno_to_stack. Use
head of coalesced allocnos list.
(push_allocnos_to_stack): Remove calculation of ALLOCNO_TEMP.
Check that it is aready calculated.
(push_ira_allocno_to_spill): Rename to push_ira_allocno_to_spill.
(setup_allocno_left_conflicts_num): Use head of coalesced allocnos
list.
(coalesce_allocnos): Do extended coalescing too.
* ira-emit.c (add_range_and_copies_from_move_list): Pass a new
parameter to ira_add_allocno_copy.
* ira-build.c (ira_create_copy, ira_add_allocno_copy): Add a new
parameter.
(print_copy): Print copy origination too.
* ira-costs.c (scan_one_insn): Use alloc_pref for load from
equivalent memory.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@141753 138bc75d-0d04-0410-961f-82ee72b054a4
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* ira-int.h (ira_allocno): Add member updated_cover_class_cost.
(ALLOCNO_UPDATED_COVER_CLASS_COST): New.
(ira_fast_allocation): Remove the prototype.
* ira-color.c (update_copy_costs, allocno_cost_compare_func,
assign_hard_reg, calculate_allocno_spill_cost): Use updated costs.
(color_pass): Modify the updated costs.
(ira_color): Rename to color. Make it static.
(ira_fast_allocation): Rename to fast_allocation. Make it static.
(ira_color): New function.
* ira-conflicts.c (process_regs_for_copy): Propagate hard reg cost
change.
* ira-lives.c (last_call_num, allocno_saved_at_call): New
variables.
(set_allocno_live, clear_allocno_live, mark_ref_live,
mark_ref_dead): Invalidate corresponding element of
allocno_saved_at_call.
(process_bb_node_lives): Increment last_call_num. Setup
allocno_saved_at_call. Don't increase ALLOCNO_CALL_FREQ if the
allocno was already saved.
(ira_create_allocno_live_ranges): Initiate last_call_num and
allocno_saved_at_call.
* ira-build.c (ira_create_allocno): Initiate
ALLOCNO_UPDATED_COVER_CLASS_COST.
(create_cap_allocno, propagate_allocno_info,
remove_unnecessary_allocnos): Remove setting updated costs.
(ira_flattening): Set up ALLOCNO_UPDATED_COVER_CLASS_COST.
* ira.c (ira): Don't call ira_fast_allocation.
* ira-costs.c (setup_allocno_cover_class_and_costs): Don't set up
updated costs.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@141385 138bc75d-0d04-0410-961f-82ee72b054a4
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PR middle-end/37813
* ira-conflicts.c (process_regs_for_copy): Remove class subset
check.
* ira-int.h (ira_hard_regno_cover_class): New.
* ira-lives.c (mark_reg_live, mark_reg_dead,
process_bb_node_lives): Use ira_hard_regno_cover_class.
* ira.c (reg_class ira_hard_regno_cover_class): New global
variable.
(setup_hard_regno_cover_class): New function.
(ira_init): Call setup_hard_regno_cover_class.
* ira-costs.c (cost_class_nums): Add comment.
(find_allocno_class_costs): Initiate cost_class_nums.
(setup_allocno_cover_class_and_costs): Check cost_class_nums.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@141384 138bc75d-0d04-0410-961f-82ee72b054a4
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PR target/37633
* ira-costs.c (ira_tune_allocno_costs_and_cover_classes): Check
HARD_REGNO_CALL_PART_CLOBBERED.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@141161 138bc75d-0d04-0410-961f-82ee72b054a4
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* ira-build.c, ira-color.c, ira-costs.c, ira.h, ira-lives.c,
ira.c, ira-conflicts.c, ira-emit.c, ira-int.h: New files.
* doc/passes.texi: Describe IRA.
* doc/tm.texi (IRA_COVER_CLASSES,
IRA_HARD_REGNO_ADD_COST_MULTIPLIER): Describe the new macros.
* doc/invoke.texi (ira-max-loops-num): Describe the new parameter.
(-fira, -fira-algorithm, -fira-coalesce, -fno-ira-move-spills,
-fira-propagate-cost, -fno-ira-share-save-slots,
-fno-ira-share-spill-slots, -fira-verbose): Describe new options.
* flags.h (ira_algorithm): New enumeration.
(flag_ira_algorithm, flag_ira_verbose): New external variable
declarations.
* postreload.c (gate_handle_postreload): Don't do post reload
optimizations unless the reload is completed.
* reload.c (push_reload, find_dummy_reload): Use DF_LR_OUT for
IRA.
* tree-pass.h (pass_ira): New external variable declaration.
* reload.h: Add 2008 to the Copyright.
* cfgloopanal.c: Include params.h.
(estimate_reg_pressure_cost): Decrease cost for IRA optimization
mode.
* params.h (IRA_MAX_LOOPS_NUM): New macro.
* toplev.c (ira.h): New include.
(flag_ira_algorithm, flag_ira_verbose): New external variables.
(backend_init_target): Call ira_init.
(backend_init): Call ira_init_once.
(finalize): Call finish_ira_once.
* toplev.h (flag_ira, flag_ira_coalesce, flag_ira_move_spills,
flag_ira_share_save_slots, flag_ira_share_spill_slots): New
external variables.
* regs.h (contains_reg_of_mode, move_cost, may_move_in_cost,
may_move_out_cost): New external variable declarations.
(move_table): New typedef.
* caller-save.c: Include headers output.h and ira.h.
(no_caller_save_reg_set): New global variable.
(save_slots_num, save_slots): New variables.
(reg_save_code, reg_restore_code, add_stored_regs): Add
prototypes.
(init_caller_save): Set up no_caller_save_reg_set.
(init_save_areas): Reset save_slots_num.
(saved_hard_reg): New structure.
(hard_reg_map, saved_regs_num, all_saved_regs): New variables.
(initiate_saved_hard_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.
(all_blocks): New variable.
(save_call_clobbered_regs): Process pseudo-register too.
(mark_set_regs): Process pseudo-register too.
(insert_one_insn): Put the insn after bb note in a empty basic
block. Add insn check.
* global.c (eliminable_regset): Make it external.
(mark_elimination): Use DF_LR_IN for IRA.
(pseudo_for_reload_consideration_p): New.
(build_insn_chain): Make it external. Don't ignore spilled
pseudos for IRA. Use pseudo_for_reload_consideration_p.
(gate_handle_global_alloc): New function.
(pass_global_alloc): Add the gate function.
* opts.c (decode_options): Set up flag_ira. Print the warning for
-fira.
(common_handle_option): Process -fira-algorithm and -fira-verbose.
* timevar.def (TV_IRA, TV_RELOAD): New passes.
* regmove.c (regmove_optimize): Don't do replacement of output for
IRA.
* hard-reg-set.h (no_caller_save_reg_set, reg_class_subclasses):
New external variable declarations.
* local-alloc.c (update_equiv_regs): Make it external. Return
true if jump label rebuilding should be done. Rescan new_insn for
notes.
(gate_handle_local_alloc): New function.
(pass_local_alloc): Add the gate function.
* alias.c (value_addr_p, stack_addr_p): New functions.
(nonoverlapping_memrefs_p): Use them for IRA.
* common.opt (fira, fira-algorithm, fira-coalesce,
fira-move-spills, fira-share-save-slots, fira-share-spill-slots,
fira-verbose): New options.
* regclass.c (reg_class_subclasses, contains_reg_of_mode,
move_cost, may_move_in_cost, may_move_out_cost): Make the
variables external.
(move_table): Remove typedef.
(init_move_cost): Make it external.
(allocate_reg_info, resize_reg_info, setup_reg_classes): New
functions.
* rtl.h (init_move_cost, allocate_reg_info, resize_reg_info,
setup_reg_classes): New function prototypes.
(eliminable_regset): New external variable declaration.
(build_insn_chain, update_equiv_regs): New function prototypes.
* Makefile.in (IRA_INT_H): New definition.
(OBJS-common): Add ira.o, ira-build.o, ira-costs.o,
ira-conflicts.o, ira-color.o, ira-emit.o, and ira-lives.o.
(reload1.o, toplev.o): Add dependence on ira.h.
(cfgloopanal.o): Add PARAMS_H.
(caller-save.o): Add dependence on output.h and ira.h.
(ira.o, ira-build.o, ira-costs.o, ira-conflicts.o, ira-color.o,
ira-emit.o, ira-lives.o): New entries.
* passes.c (pass_ira): New pass.
* params.def (PARAM_IRA_MAX_LOOPS_NUM): New parameter.
* reload1.c (ira.h): Include the header.
(changed_allocation_pseudos): New bitmap.
(init_reload): Initiate the bitmap.
(compute_use_by_pseudos): Permits spilled registers in FROM.
(temp_pseudo_reg_arr): New variable.
(reload): Allocate and free temp_pseudo_reg_arr. Sort pseudos for
IRA. Call alter_reg with the additional parameter. Don't clear
spilled_pseudos for IRA. Restore original insn chain for IRA.
Clear changed_allocation_pseudos at the end of reload.
(calculate_needs_all_insns): Call IRA's mark_memory_move_deletion.
(hard_regno_to_pseudo_regno): New variable.
(count_pseudo): Check spilled pseudos. Set up
hard_regno_to_pseudo_regno.
(count_spilled_pseudo): Check spilled pseudos. Update
hard_regno_to_pseudo_regno.
(find_reg): Use better_spill_reload_regno_p. Check
hard_regno_to_pseudo_regno.
(alter_reg): Set up spilled_pseudos. Add a new parameter. Add
code for IRA.
(eliminate_regs_1): Use additional parameter for alter_reg.
(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. Use additional parameter for alter_reg. Call
mark_allocation_change. Set up changed_allocation_pseudos.
Remove sanity check.
(emit_input_reload_insns, delete_output_reload): Use additional
parameter for alter_reg. Call mark_allocation_change.
(substitute, gen_reload_chain_without_interm_reg_p): New
functions.
(reloads_conflict): Use gen_reload_chain_without_interm_reg_p.
* testsuite/gcc.dg/20080410-1.c: New file.
* config/s390/s390.h (IRA_COVER_CLASSES,
IRA_HARD_REGNO_ADD_COST_MULTIPLIER): Define.
* 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.
* config/arm/arm.h (IRA_COVER_CLASSES): Ditto.
* config/alpha/alpha.h (IRA_COVER_CLASSES): Ditto.
2008-08-24 Jeff Law <law@redhat.com>
* ira.c (setup_reg_class_intersect_union): Prefer smallest class
when ignoring unavailable registers.
2008-08-24 Jeff Law <law@redhat.com>
* ira-color.c (coalesced_pseudo_reg_slot_compare): Check
FRAME_GROWS_DOWNWARD and STACK_GROWS_DOWNWARD.
* ira.c (setup_eliminable_regset): Check stack_realign_needed.
* config/mn10300/mn10300.h (IRA_COVER_CLASSES): New macro.
2008-06-03 Steve Chamberlain <steve.chamberlain@gmail.com>
* ira-build.c (allocno_range_compare_func): Stabilize sort.
2008-05-29 Andy Hutchinson <hutchinsonandy@aim.com>
* config/avr/avr.h (IRA_COVER_CLASSES): New macro.
* reload1.c (find_reg): Process registers in register allocation order.
2008-05-10 Richard Sandiford <rsandifo@nildram.co.uk>
* toplev.c (backend_init_target): Move ira_init call from
here...
(lang_dependent_init_target): ...to here.
2008-05-10 Richard Sandiford <rsandifo@nildram.co.uk>
* ira.c (setup_class_subset_and_memory_move_costs): Don't
calculate memory move costs for NO_REGS.
2008-05-05 Kaz Kojima <kkojima@gcc.gnu.org>
* ira-color.c (ira_fast_allocation): Use no_stack_reg_p only if
STACK_REGS is defined.
2008-04-08 Andrew Pinski <andrew_pinski@playstation.sony.com>
* config/spu/spu.h (IRA_COVER_CLASSES): New macro.
2008-04-04 Bernd Schmidt <bernd.schmidt@analog.com>
* config/bfin/bfin.h (IRA_COVER_CLASSES): New macro.
2008-04-04 Kaz Kojima <kkojima@gcc.gnu.org>
* config/sh/sh.h (IRA_COVER_CLASSES): Define.
* config/sh/sh.md (movsicc_true+3): Check if emit returns a
barrier.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@139590 138bc75d-0d04-0410-961f-82ee72b054a4
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