Dwarakanath Rajagopal <dwarak.rajagopal@amd.com>
* tree-ssa-loop-prefetch.c
(gather_memory_references): Introduced a counter for the number of
memory references.
(anything_to_prefetch_p): Introduced a counter for the number of
prefetches.
(is_loop_prefetching_profitable): New function with a cost model
for prefetching.
(loop_prefetch_arrays): Use the new cost model to determine if
prefetching is profitable.
* params.def (MIN_INSN_TO_PREFETCH_RATIO,
PREFETCH_MIN_INSN_TO_MEM_RATIO): New parameters.
* params.h (MIN_INSN_TO_PREFETCH_RATIO,
PREFETCH_MIN_INSN_TO_MEM_RATIO): New parameters.
* doc/invoke.texi (MIN_INSN_TO_PREFETCH_RATIO,
PREFETCH_MIN_INSN_TO_MEM_RATIO): New parameters.
Co-Authored-By: Dwarakanath Rajagopal <dwarak.rajagopal@amd.com>
From-SVN: r148277
* doc/passes.texi (Tree-SSA passes): Document SLP pass.
* tree-pass.h (pass_slp_vectorize): New pass.
* params.h (SLP_MAX_INSNS_IN_BB): Define.
* timevar.def (TV_TREE_SLP_VECTORIZATION): Define.
* tree-vectorizer.c (timevar.h): Include.
(user_vect_verbosity_level): Declare.
(vect_location): Fix comment.
(vect_set_verbosity_level): Update user_vect_verbosity_level
instead of vect_verbosity_level.
(vect_set_dump_settings): Add an argument. Ignore user defined
verbosity if dump flags require higher level of verbosity. Print to
stderr only for loop vectorization.
(vectorize_loops): Update call to vect_set_dump_settings.
(execute_vect_slp): New function.
(gate_vect_slp): Likewise.
(struct gimple_opt_pass pass_slp_vectorize): New.
* tree-vectorizer.h (struct _bb_vec_info): Define along macros to
access its members.
(vec_info_for_bb): New function.
(struct _stmt_vec_info): Add bb_vinfo and a macro for its access.
(VECTORIZATION_ENABLED): New macro.
(SLP_ENABLED, SLP_DISABLED): Likewise.
(vect_is_simple_use): Add bb_vec_info argument.
(new_stmt_vec_info, vect_analyze_data_ref_dependences,
vect_analyze_data_refs_alignment, vect_verify_datarefs_alignment,
vect_analyze_data_ref_accesses, vect_analyze_data_refs,
vect_schedule_slp, vect_analyze_slp): Likewise.
(vect_analyze_stmt): Add slp_tree argument.
(find_bb_location): Declare.
(vect_slp_analyze_bb, vect_slp_transform_bb): Likewise.
* tree-vect-loop.c (new_loop_vec_info): Adjust function calls.
(vect_analyze_loop_operations, vect_analyze_loop,
get_initial_def_for_induction, vect_create_epilog_for_reduction,
vect_finalize_reduction, vectorizable_reduction,
vectorizable_live_operation, vect_transform_loop): Likewise.
* tree-data-ref.c (dr_analyze_innermost): Update comment,
skip evolution analysis if analyzing a basic block.
(dr_analyze_indices): Likewise.
(initialize_data_dependence_relation): Skip the test whether the
object is invariant for basic blocks.
(compute_all_dependences): Skip dependence analysis for data
references in basic blocks.
(find_data_references_in_stmt): Don't fail in case of invariant
access in basic block.
(find_data_references_in_bb): New function.
(find_data_references_in_loop): Move code to
find_data_references_in_bb and add a call to it.
(compute_data_dependences_for_bb): New function.
* tree-data-ref.h (compute_data_dependences_for_bb): Declare.
* tree-vect-data-refs.c (vect_check_interleaving): Adjust to the case
that STEP is 0.
(vect_analyze_data_ref_dependence): Check for interleaving in case of
unknown dependence in basic block and fail in case of dependence in
basic block.
(vect_analyze_data_ref_dependences): Add bb_vinfo argument, get data
dependence instances from either loop or basic block vectorization
info.
(vect_compute_data_ref_alignment): Check if it is loop vectorization
before calling nested_in_vect_loop_p.
(vect_compute_data_refs_alignment): Add bb_vinfo argument, get data
dependence instances from either loop or basic block vectorization
info.
(vect_verify_datarefs_alignment): Likewise.
(vect_enhance_data_refs_alignment): Adjust function calls.
(vect_analyze_data_refs_alignment): Likewise.
(vect_analyze_group_access): Fix printing. Skip different checks if
DR_STEP is 0. Keep strided stores either in loop or basic block
vectorization data structure. Fix indentation.
(vect_analyze_data_ref_access): Fix comments, allow zero step in
basic blocks.
(vect_analyze_data_ref_accesses): Add bb_vinfo argument, get data
dependence instances from either loop or basic block vectorization
info.
(vect_analyze_data_refs): Update comment. Call
compute_data_dependences_for_bb to analyze basic blocks.
(vect_create_addr_base_for_vector_ref): Check for outer loop only in
case of loop vectorization. In case of basic block vectorization use
data-ref itself as a base.
(vect_create_data_ref_ptr): In case of basic block vectorization:
don't advance the pointer, add new statements before the current
statement. Adjust function calls.
(vect_supportable_dr_alignment): Support only aligned accesses in
basic block vectorization.
* common.opt (ftree-slp-vectorize): New flag.
* tree-vect-patterns.c (widened_name_p): Adjust function calls.
(vect_pattern_recog_1): Likewise.
* tree-vect-stmts.c (process_use): Likewise.
(vect_init_vector): Add new statements in the beginning of the basic
block in case of basic block SLP.
(vect_get_vec_def_for_operand): Adjust function calls.
(vect_finish_stmt_generation): Likewise.
(vectorizable_call): Add assert that it is loop vectorization, adjust
function calls.
(vectorizable_conversion, vectorizable_assignment): Likewise.
(vectorizable_operation): In case of basic block SLP, take
vectorization factor from statement's type and skip the relevance
check. Adjust function calls.
(vectorizable_type_demotion): Add assert that it is loop
vectorization, adjust function calls.
(vectorizable_type_promotion): Likewise.
(vectorizable_store): Check for outer loop only in case of loop
vectorization. Adjust function calls. For basic blocks, skip the
relevance check and don't advance pointers.
(vectorizable_load): Likewise.
(vectorizable_condition): Add assert that it is loop vectorization,
adjust function calls.
(vect_analyze_stmt): Add argument. In case of basic block SLP, check
that it is not reduction, get vector type, call only supported
functions, skip loop specific parts.
(vect_transform_stmt): Check for outer loop only in case of loop
vectorization.
(new_stmt_vec_info): Add new argument and initialize bb_vinfo.
(vect_is_simple_use): Fix comment, add new argument, fix conditions
for external definition.
* passes.c (pass_slp_vectorize): New pass.
* tree-vect-slp.c (find_bb_location): New function.
(vect_get_and_check_slp_defs): Add argument, adjust function calls,
check for patterns only in loops.
(vect_build_slp_tree): Add argument, adjust function calls, fail in
case of multiple types in basic block SLP.
(vect_mark_slp_stmts_relevant): New function.
(vect_supported_load_permutation_p): Fix comment.
(vect_analyze_slp_instance): Add argument. In case of basic block
SLP, take vectorization factor from statement's type, check that
unrolling factor is 1. Adjust function call. Save SLP instance in
either loop or basic block vectorization structure. Return FALSE,
if SLP failed.
(vect_analyze_slp): Add argument. Get strided stores groups from
either loop or basic block vectorization structure. Return FALSE
if basic block SLP failed.
(new_bb_vec_info): New function.
(destroy_bb_vec_info, vect_slp_analyze_node_operations,
vect_slp_analyze_operations, vect_slp_analyze_bb): Likewise.
(vect_schedule_slp): Add argument. Get SLP instances from either
loop or basic block vectorization structure. Set vectorization factor
to be 1 for basic block SLP.
(vect_slp_transform_bb): New function.
* params.def (PARAM_SLP_MAX_INSNS_IN_BB): Define.
From-SVN: r147829
* doc/invoke.texi (max_gcse_passes): Remove documentation.
* params.def (PARAM_MAX_GCSE_PASSES): Remove.
* params.h (MAX_GCSE_PASSES): Remove.
* gcse.c (gcse_main): Run CPROP1, PRE or HOIST, and CPROP2
in sequence. Remove ability to run multiple passes.
(bypass_jumps): Report run as third CPROP pass.
From-SVN: r145987
PR middle-end/39157
* Makefile.in (loop-invariant.o): Depend on $(PARAMS_H).
* params.h (LOOP_INVARIANT_MAX_BBS_IN_LOOP): Define.
* params.def (loop-invariant-max-bbs-in-loop): New parameter.
* opts.c (decode_options): Set loop-invariant-max-bbs-in-loop
parameter to 1000 for -O1 by default.
* doc/invoke.texi (loop-invariant-max-bbs-in-loop): Document new
parameter.
* loop-invariant.c: Include params.h.
(move_loop_invariants): Don't call move_single_loop_invariants on
very large loops.
From-SVN: r144320
2009-01-05 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/38583
* params.h (IRA_MAX_CONFLICT_TABLE_SIZE): New macro.
* params.def (ira-max-conflict-table-size): New.
* doc/invoke.texi (ira-max-conflict-table-size): Decribe.
* ira.h (ira_conflicts_p): New external definition.
* ira-conflicts.c (build_conflict_bit_table): Do not build too big
table. Report this. Return result of building.
(ira_build_conflicts): Use ira_conflicts_p. Check result of
building conflict table.
* ira-color.c (fast_allocation): Use num instead of
ira_allocnos_num.
(ira_color): Use ira_conflicts_p.
* global.c: Include ira.h.
(pseudo_for_reload_consideration_p, build_insn_chain): Use
ira_conflicts_p.
* Makefile.in (global.o): Add ira.h.
* ira-build.c (mark_all_loops_for_removal,
propagate_some_info_from_allocno): New.
(remove_unnecessary_allocnos): Call
propagate_some_info_from_allocno.
(remove_low_level_allocnos): New.
(remove_unnecessary_regions): Add parameter. Call
mark_all_loops_for_removal and remove_low_level_allocnos. Pass
parameter to remove_unnecessary_regions.
(ira_build): Remove all regions but root if the conflict table was
not built. Update conflict hard regs for allocnos crossing calls.
* ira.c (ira_conflicts_p): New global.
(ira): Define and use ira_conflicts_p.
* reload1.c (compute_use_by_pseudos, reload, count_pseudo,
count_spilled_pseudo, find_reg, alter_reg, finish_spills,
emit_input_reload_insns, delete_output_reload): Use
ira_conflicts_p.
From-SVN: r143112
2008-08-26 Vladimir Makarov <vmakarov@redhat.com>
* 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.
From-SVN: r139590
* doc/invoke.texi (l1-cache-size): Update documentation.
(l2-cache-size): Document.
* params.h (L2_CACHE_SIZE): New macro.
* tree-ssa-loop-prefetch.c (L1_CACHE_SIZE_BYTES): Reflect
that L1_CACHE_SIZE is in kB now.
(L2_CACHE_SIZE_BYTES): New macro.
(tree_ssa_prefetch_arrays): Show size in kB.
* config/i386/i386.h (struct processor_costs): Add l1_cache_size
and l2_cache_size fields.
* config/i386/driver-i386.c (describe_cache): Detect cache size
in kB.
* config/i386/i386.c (size_cost, i386_cost, i486_cost,pentium_cost,
pentiumpro_cost, geode_cost, k6_cost, athlon_cost, k8_cost,
amdfam10_cost, pentium4_cost, nocona_cost, core2_cost,
generic64_cost, generic32_cost): Add l1_cache_size and l2_cache_size.
(override_options): Set l1-cache-size and l2-cache-size to default
values if not specified otherwise.
* params.def (PARAM_L1_CACHE_SIZE): Change to set in kB.
(PARAM_L2_CACHE_SIZE): New.
From-SVN: r127117
2007-07-11 Douglas Gregor <doug.gregor@gmail.com>
* params.def (PARAM_VERIFY_CANONICAL_TYPES): Remove.
(PARAM_USE_CANONICAL_TYPES): New; decides whether to use canonical
types or not.
* params.h (VERIFY_CANONICAL_TYPES): Remove.
(USE_CANONICAL_TYPES): New.
* doc/invoke.texi (verify-canonical-types): Remove.
(use-canonical-types): Add.
2007-07-11 Douglas Gregor <doug.gregor@gmail.com>
* typeck.c (comptypes): When USE_CANONICAL_TYPES, use the
canonical types; otherwise, fall back to structural type
comparisons. If ENABLE_CHECKING and USE_CANONICAL_TYPES, give an
internal compiler error if the canonical types are wrong.
From-SVN: r126550
PR 30735
PR 31090
* doc/invoke.texi: Document --params max-aliased-vops and
avg-aliased-vops.
* tree-ssa-operands.h (get_mpt_for, dump_memory_partitions,
debug_memory_partitions): Move to tree-flow.h
* params.h (AVG_ALIASED_VOPS): Define.
* tree-ssa-alias.c (struct mp_info_def): Remove. Update all
users.
(mp_info_t): Likewise.
(get_mem_sym_stats_for): New.
(set_memory_partition): Move from tree-flow-inline.h.
(mark_non_addressable): Only clear the set of symbols for the
partition if it exists.
(dump_memory_partitions): Move from tree-ssa-operands.c
(debug_memory_partitions): Likewise.
(need_to_partition_p): New.
(dump_mem_ref_stats): New.
(debug_mem_ref_stats): New.
(dump_mem_sym_stats): New.
(debug_mem_sym_stats): New.
(update_mem_sym_stats_from_stmt): New.
(compare_mp_info_entries): New.
(mp_info_cmp): Call it.
(sort_mp_info): Change argument to a list of mem_sym_stats_t
objects.
(get_mpt_for): Move from tree-ssa-operands.c.
(find_partition_for): New.
(create_partition_for): Remove.
(estimate_vop_reduction): New.
(update_reference_counts): New.
(build_mp_info): New.
(compute_memory_partitions): Refactor.
Document new heuristic.
Call build_mp_info, update_reference_counts,
find_partition_for and estimate_vop_reduction.
(compute_may_aliases): Populate virtual operands before
calling debugging dumps.
(delete_mem_sym_stats): New.
(delete_mem_ref_stats): New.
(init_mem_ref_stats): New.
(init_alias_info): Call it.
(maybe_create_global_var): Remove alias_info argument.
Get number of call sites and number of pure/const call sites
from gimple_mem_ref_stats().
(dump_alias_info): Call dump_memory_partitions first.
(dump_points_to_info_for): Show how many times a pointer has
been dereferenced.
* opts.c (decode_options): For -O2 set --param
max-aliased-vops to 500.
For -O3 set --param max-aliased-vops to 1000 and --param
avg-aliased-vops to 3.
* fortran/options.c (gfc_init_options): Remove assignment to
MAX_ALIASED_VOPS.
* tree-flow-inline.h (gimple_mem_ref_stats): New.
* tree-dfa.c (dump_variable): Dump memory reference
statistics.
Dump NO_ALIAS* settings.
(referenced_var_lookup): Tidy.
(mem_sym_stats): New.
* tree-ssa-copy.c (may_propagate_copy): Return true if DEST
and ORIG are different SSA names for a memory partition.
* tree-ssa.c (delete_tree_ssa): Call delete_mem_ref_stats.
* tree-flow.h (struct mem_sym_stats_d): Define.
(mem_sym_stats_t): Define.
(struct mem_ref_stats_d): Define.
(struct gimple_df): Add field mem_ref_stats.
(enum noalias_state): Define.
(struct var_ann_d): Add bitfield noalias_state.
(mem_sym_stats, delete_mem_ref_stats, dump_mem_ref_stats,
debug_mem_ref_stats, debug_memory_partitions,
debug_mem_sym_stats): Declare.
* tree-ssa-structalias.c (update_alias_info): Update call
sites, pure/const call sites and asm sites in structure
returned by gimple_mem_ref_stats.
Remove local variable IS_POTENTIAL_DEREF.
Increase NUM_DEREFS if the memory expression is a potential
dereference.
Call update_mem_sym_stats_from_stmt.
If the memory references memory, call
update_mem_sym_stats_from_stmt for all the direct memory
symbol references found.
(intra_create_variable_infos): Set noalias_state field for
pointer arguments according to the value of
flag_argument_noalias.
* tree-ssa-structalias.h (struct alias_info): Remove fields
num_calls_found and num_pure_const_calls_found.
(update_mem_sym_stats_from_stmt): Declare.
* params.def (PARAM_MAX_ALIASED_VOPS): Change description.
Set default value to 100.
(PARAM_AVG_ALIASED_VOPS): Define.
From-SVN: r123719
2007-01-02 Douglas Gregor <doug.gregor@gmail.com>
* c-common.c(c_common_nodes_and_builtins): Since variants of
void_type_node get built before it is given a name, we need to
give those variants the name, too.
(complete_array_type): We need to work with the canonical main
type of the array, from which we will build the qualified version.
* params.def (PARAM_VERIFY_CANONICAL_TYPES): New.
* print-tree.c (print_node): Display canonical type information
for each type.
* stor-layout.c (layout_type): When we don't know the
alignment of a type for which we're building an array, we end up
guessing wrong, so make the type require structural equality.
* tree.c (make_node_stat): When we build a new type, it is its
own canonical type.
(build_type_attribute_qual_variant): When building an attribute
variant, its canonical type is the non-attribute variant. However,
if the attributes are target-dependent and they differ, we need to
use structural equality checks for this type.
(build_qualified_type): A qualified type is not equivalent to its
unqualified variant; set the canonical type appropriately.
(build_distinct_type_copy): When building a distinct type from
another type, the new type is its own canonical type.
(build_variant_type_copy): When building a new type variant, we
assume that it is equivalent to the original type.
(build_pointer_type_for_mode): When building a pointer type, also
build a canonical type pointer.
(build_reference_type_for_mode): When building a reference type,
also build a canonical type reference.
(build_index_type): When we can't hash an index type (e.g.,
because its maximum value is negative), the index type requires
structural equality tests.
(build_array_type): Build the canonical form of an array type.
(build_function_type): Function types require structural equality,
because they contain default arguments, attributes, etc.
(build_method_type_directly): Ditto for method types.
(build_offset_type): Build the canonical offset type.
(build_complex_type): Build the canonical vector type.
(make_vector_type): Build the canonical vector type.
* tree.h (TYPE_CANONICAL): New.
(TYPE_STRUCTURAL_EQUALITY_P): New.
(SET_TYPE_STRUCTURAL_EQUALITY): New.
(struct tree_type): Added "canonical" field.
* params.h (VERIFY_CANONICAL_TYPES): New.
* doc/c-tree.texi (TYPE_CANONICAL): Document.
(TYPE_STRUCTURAL_EQUALITY_P): Document.
(SET_TYPE_STRUCTURAL_EQUALITY): Document.
* doc/invoke.texi (verify-canonical-types): Document --param
parameter for verifying canonical types.
2007-01-02 Douglas Gregor <doug.gregor@gmail.com>
* typeck.c (structural_comptypes): Renamed from "comptypes".
(comptypes): Use canonical type information to perform fast type
comparison. When VERIFY_CANONICAL_TYPES, verify that the
canonical type comparison returns the same results as we would see
from the current, structural check. Support COMPARE_STRUCTURAL
when we need structural checks.
* decl.c (typename_compare): Fix comment.
(build_typename_type): TYPENAME_TYPE nodes require structural
equality checks, because they resolve different based on the
current class type.
(make_unbound_class_template): UNBOUND_CLASS_TEMPLATE nodes
require structural equality checks (for now).
(build_ptrmemfunc_type): Build the canonical pointer to member
function type.
(compute_array_index_type): Whenever we build a new index type
to represent the size of an array in a template, we need to mark
this index type as requiring structural equality. This goes for
arrays with value-dependent sizes with the current ABI, or all
arrays with ABI-1.
* tree.c (cplus_array_hash): New.
(struct cplus_array_info): New.
(cplus_array_compare): New.
(cplus_array_htab): New.
(build_cplus_array_type_1): Use a hash table to cache the array
types we build. Build the canonical array type for each array
type.
(cp_build_qualified_type_real): When building a cv-qualified array
type, use the hash table of array types and build canonical array
types as necessary.
(bind_template_template_parm): BOUND_TEMPLATE_TEMPLATE_PARM nodes
use structural equality (for now).
* cp-tree.h (COMPARE_STRUCTURAL): New.
* pt.c (canonical_template_parms): New.
(canonical_type_parameter): New.
(process_template_parm): Find the canonical type parameter.
(lookup_template_class): When we have named the primary template
type, set the canonical type for our template class to the primary
template type. If any of the template arguments need structural
equality checks, the template class needs structural equality
checks.
(tsubst): When reducing the level of a template template
parameter, we require structural equality tests for the resulting
parameter because its template parameters have not had their types
canonicalized. When reducing a template type parameter, find the
canonical reduced type parameter.
(any_template_arguments_need_structural_equality_p): New.
2007-01-02 Douglas Gregor <doug.gregor@gmail.com>
* objc-act.c (objc_build_volatilized_type): Keep track of
canonical types.
(objc_get_protocol_qualified_type): Ditto.
From-SVN: r120341
2006-12-11 Diego Novillo <dnovillo@redhat.com>
* doc/tree-ssa.texi: Update documentation for virtual operands
and the use of push_stmt_changes/pop_stmt_changes.
* doc/invoke.texi: Remove documentation for params
global-var-threshold.
Update documentation on max-aliased-vops.
* tree-into-ssa.c: Cleanup comments, variables and
spacing in various functions.
(regs_to_rename): Declare.
(mem_syms_to_rename): Declare.
(dump_update_ssa): Declare.
(debug_update_ssa): Declare.
(dump_names_replaced_by): Declare.
(debug_names_replaced_by): Declare.
(dump_def_blocks): Declare.
(debug_def_blocks): Declare.
(dump_defs_stack): Declare.
(debug_defs_stack): Declare.
(dump_currdefs): Declare.
(debug_currdefs): Declare.
(mark_def_sites): Do not handle virtual operands.
(compute_idf): Rename from find_idf. Update users.
(register_new_def): Make local. Convert second argument
to 'tree'.
Use BLOCK_DEFS_STACK directly.
If pushing a non-register, also push the underlying
symbol.
(rewrite_stmt): Do not handle virtual operands.
(dump_tree_ssa): Call dump_def_blocks, dump_defs_stack,
dump_currdefs and dump_tree_ssa_stats.
(dump_tree_ssa_stats): Also dump REPL_TBL.
(replace_use): Remove. Update all users to call SET_USE
instead.
(rewrite_blocks): Move code to free memory to
fini_ssa_renamer.
(mark_def_site_blocks): Move initialization code to
init_ssa_renamer.
(init_ssa_renamer): New.
(fini_ssa_renamer): New.
(rewrite_into_ssa): Call them.
(prepare_block_for_update): Process SSA_OP_ALL_USES first
and SSA_OP_ALL_DEFS later. Do not process virtual
operands separately.
(dump_update_ssa): Call dump_decl_set.
(init_update_ssa): Initialize regs_to_rename and
mem_syms_to_rename.
Call init_ssa_renamer.
(delete_update_ssa): Call fini_ssa_renamer.
Free blocks_with_phis_to_rewrite.
(mark_sym_for_renaming): If the variable has
sub-variables, also mark them.
If the variable belongs to a partition, also mark it.
(mark_set_for_renaming): Call mark_sym_for_renaming on
every symbol in the set.
(switch_virtuals_to_full_rewrite): Call
mark_set_for_renaming.
(update_ssa): Separate syms_to_rename into regs_to_rename
and mem_syms_to_rename.
* tree-dump.c (dump_options): Add TDF_MEMSYMS.
* tree-pretty-print.c (debug_generic_expr): Add TDF_MEMSYMS.
(debug_generic_stmt): Likewise.
(debug_tree_chain): Likewise.
(dump_symbols): New.
(dump_generic_node): Check for TDF_MEMSYMS.
Handle MEMORY_PARTITION_TAG.
If the statement references memory and TDF_MEMSYMS is
given, call dump_symbols.
Indicate default names with (D).
(dump_vops): Update for new virtual operator format.
* tree.c (init_ttree): Add MEMORY_PARTITION_TAG to
tree_contains_struct.
(tree_code_size): Handle MEMORY_PARTITION_TAG.
(tree_node_structure): Likewise.
(needs_to_live_in_memory): Handle SSA names.
* tree.h (MTAG_P): Likewise.
(struct tree_memory_partition_tag): Declare.
(MPT_SYMBOLS): Define.
(union tree_node): Add field 'mpt'.
* treestruct.def (TS_MEMORY_PARTITION_TAG): Define.
* tree.def (MEMORY_PARTITION_TAG): Define.
* tree-pass.h (TDF_MEMSYMS): Define.
* params.h (GLOBAL_VAR_THRESHOLD): Remove.
* tree-ssa-alias.c: Include pointer-set.h
(struct alias_map_d): Remove fields total_alias_vops,
grouped_p and may_aliases. Update all users.
(struct mp_info_def): Declare.
(mp_info_t): New type.
(get_smt_for): Rename from get_tmt_for. Update all
users.
(add_may_alias): Add argument ALREADY_ADDED. If given,
use it to avoid adding duplicate entries to alias sets.
(replace_may_alias): Remove. Update all users.
(total_alias_vops_cmp): Remove. Update all users.
(group_aliases_into): Remove. Update all users.
(tree_pointer_compare): Remove. Update all users.
(compact_name_tags): Remove. Update all users.
(group_aliases): Remove. Update all users.
(mark_non_addressable): Move from tree-flow-inline.h.
Remove the symbol from the partition holding it, if
needed.
(dump_mp_info): New.
(debug_mp_info): New.
(sort_mp_info): New.
(create_partition_for): New.
(rewrite_alias_set_for): New.
(compute_memory_partitions): New.
(compute_may_aliases): Call it.
(init_alias_info): If computing aliases for the first
time, mark every memory symbol for renaming.
(have_common_aliases_p): New.
(compute_flow_insensitive_aliasing): Call it.
(setup_pointers_and_addressables): Do not cache
num_referenced_vars.
For register promoted symbols, mark their former
partition for renaming.
(maybe_create_global_var): Only create .GLOBAL_VAR if
there are no call-clobbered variables and a mix of pure
and non-pure functions were found.
(may_alias_p): Tidy comments.
(create_tag_raw): Remove unused variable new_type.
(dump_alias_info): call dump_memory_partitions.
(dump_points_to_info_for): Call dump_decl_set.
(may_be_aliased): Tidy comments and formatting.
* timevar.def (TV_MEMORY_PARTITIONING): Define.
* tree-vectorizer.c (vect_memsyms_to_rename): Rename from
vect_vnames_to_rename. Set DECL_UIDs instead of SSA name
versions in it.
(slpeel_update_phi_nodes_for_guard1): Ignore memory PHIs.
* tree-vect-transform.c (vect_transform_loop): Call
mark_set_for_renaming with vect_memsyms_to_rename.
* tree-flow-inline.h (zero_imm_uses_p): New.
(memory_partition): New.
(set_memory_partition): New.
(factoring_name_p): New.
(symbol_mem_tag): New. Update every function that used
to access the annotation directly.
(set_symbol_mem_tag): Likewise.
* tree-ssa-copy.c (may_propagate_copy): Allow copies
between a partition and a symbol as long as the symbol
belongs to the partition.
(merge_alias_info): Ignore merge requests when memory
partitions are involved.
* tree-ssa.c (verify_ssa_name): Check that default
definitions have empty defining statements.
(verify_use): Remove argument IS_VIRTUAL.
Don't call verify_ssa_name.
(verify_phi_args): Call verify_ssa_name.
(verify_flow_insensitive_alias_info): Handle MPTs.
(verify_flow_sensitive_alias_info): Likewise.
(verify_name_tags): Likewise.
(verify_call_clobbering): Likewise.
(verify_ssa): Check for VOPs only after aliasing
information is available.
Check virtuals and real operands separately.
Call verify_ssa_name on every operand.
(stmt_references_memory_p): Move to tree-ssa-operands.c.
(walk_use_def_chains_1): Guard against NULL PHI
arguments.
* tree-ssa-operands.c (stmt_references_memory_p): Move from
tree-ssa.c.
(get_mpt_for): New.
(dump_memory_partitions): New.
(debug_memory_partitions): New.
* tree-flow.h (struct var_ann_d): Add field mpt.
(struct stmt_ann_d): Add bitfield references_memory.
* Makefile.in (tree-ssa-structalias.o): Include
pointer-set.h
(tree-ssa-alias.o): Likewise.
* tree-ssa-structalias.c: (update_alias_info): Use
STORED_SYMS to determine which variables are being
written to by the store operation.
* tree-ssa-structalias.h (struct alias_info)
<total_alias_vops>: Remove. Update all users.
<written_vars>: Change to a pointer set. Update all
users.
<dereferenced_ptrs_store>: Likewise.
<dereferenced_ptrs_load>: Likewise.
(NUM_REFERENCES): Remove. Update all users.
(NUM_REFERENCES_CLEAR): Remove. Update all users.
(NUM_REFERENCES_INC): Remove. Update all users.
(NUM_REFERENCES_SET): Remove. Update all users.
* params.def (PARAM_GLOBAL_VAR_THRESHOLD): Remove.
Update all users.
(PARAM_MAX_ALIASED_VOPS): Set to 10.
* tree-ssanames.c (make_ssa_name): Initialize
SSA_NAME_IS_DEFAULT_DEF to 0.
2006-12-11 Aldy Hernandez <aldyh@redhat.com>
* tree-ssa-dse.c (aggregate_vardecl_d): New.
(dse_global_data): Add aggregate_vardecl field.
(dse_possible_dead_store_p): New.
Add prev_defvar variable.
Allow immediate uses and previous immediate uses to differ
if they are setting different parts of the whole.
(get_aggregate_vardecl): New.
(dse_record_partial_aggregate_store): New.
(dse_whole_aggregate_clobbered_p): New.
(dse_partial_kill_p): New.
(dse_optimize_stmt): Abstract code checking a possible dead store
into new function dse_possible_dead_store_p().
Call dse_maybe_record_aggregate_store().
When checking whether a STMT and its USE_STMT refer to the
same memory address, check also for partial kills that clobber
the whole.
Move some variable definitions to the block where they are used.
(aggregate_vardecl_hash): New.
(aggregate_vardecl_eq): New.
(aggregate_vardecl_free): New.
(aggregate_whole_store_p): New.
(tree_ssa_dse): Initialize and free aggregate_vardecl.
Mark which aggregate stores we care about.
2006-12-11 Andrew Macleod <amacleod@redhat.com>
* tree-ssa-operands.h (struct vuse_element_d): Declare.
(vuse_element_t): Declare.
(struct vuse_vec_d): Declare.
(vuse_vec_p): Declare.
(VUSE_VECT_NUM_ELEM): Define.
(VUSE_VECT_ELEMENT_NC): Define.
(VUSE_ELEMENT_PTR_NC): Define.
(VUSE_ELEMENT_VAR_NC): Define.
(VUSE_VECT_ELEMENT): Define.
(VUSE_ELEMENT_PTR): Define.
(VUSE_ELEMENT_VAR): Define.
(struct maydef_optype_d) <use_var>: Remove.
<use_ptr>: Remove.
<usev>: Add.
(struct vuse_optype_d) <kill_var>: Remove.
<use_ptr>: Remove.
<usev>: Add.
(struct mustdef_optype_d) <kill_var>: Remove.
<use_ptr>: Remove.
<usev>: Add.
(VUSE_OP_PTR): Add argument. Use VUSE_ELEMENT_PTR.
(VUSE_OP): Add argument. Use VUSE_ELEMENT_PTR.
(VUSE_NUM): Define.
(VUSE_VECT): Define.
(MAYDEF_OP_PTR): Add argument. Use VUSE_OP_PTR.
(MAYDEF_OP): Add argument. Use VUSE_OP.
(MAYDEF_NUM): Define.
(MAYDEF_VECT): Define.
(MUSTDEF_KILL_PTR): Use VUSE_OP_PTR.
(MUSTDEF_KILL): Use VUSE_OP.
(MUSTDEF_NUM): Define.
(MUSTDEF_VECT): Define.
(realloc_maydef): Declare.
(realloc_vuse): Declare.
(struct ssa_operand_iterator_d) <vuse_index>: Add.
<mayuse_index>: Add.
(LOADED_SYMS): Define.
(STORED_SYMS): Define.
(FOR_EACH_SSA_MUSTDEF_OPERAND): Call op_iter_next_mustdef.
* tree-into-ssa.c: Adapt for multi-operand V_MAY_DEF and VUSE
operators.
* tree-pretty-print.c: Likewise.
* tree-ssa-dse.c: Likewise.
* tree-flow-inline.h: Likewise.
(op_iter_next_mustdef): New.
* tree-ssa-operands.c: Likewise.
(ALLOC_OPTYPE): Remove.
Update all users.
(alloc_def): New.
(alloc_use): New.
(alloc_maydef): New.
(alloc_vuse): New.
(alloc_mustdef): New.
(realloc_maydef): New.
(realloc_vuse): New.
2006-12-11 Aldy Hernandez <aldyh@redhat.com>
* tree-ssa-operands.c: Remove build_v_must_defs.
(init_ssa_operands): Delete build_v_must_defs.
(finalize_ssa_v_must_def_ops): Remove.
(finalize_ssa_v_must_defs): Remove.
(finalize_ssa_stmt_operands): Do not call
finalize_ssa_v_must_defs.
(start_ssa_stmt_operands): Do not check build_v_must_defs.
(append_v_must_def): Delete.
(copy_virtual_operands): Do not copy V_MUST_DEFs.
(get_modify_expr_operands): Remove reference to V_MUST_DEF from
comment. Remove opf_kill_def.
(build_ssa_operands): Remove references to v_must_defs.
(copy_virtual_operands): Same.
(copy_virtual_operands): Same.
(fini_ssa_operands): Same.
(free_ssa_operands): Same.
(add_mustdef_op): Remove.
Remove mustdef_optype_p.
(alloc_mustdef): Remove.
Remove references to V_MUST_DEFs in comment at top of file.
(get_expr_operands): Remove opf_kill_def.
(opf_kill_def): Remove.
(add_virtual_operand): Remove opf_kill_def.
(get_indirect_ref_operands): Same.
(get_tmr_operands): Same.
* tree-vectorizer.c (rename_variables_in_bb): Remove
SSA_OP_ALL_KILLS.
* tree-ssa-loop-manip.c (find_uses_to_rename_stmt): Remove
SSA_OP_ALL_KILLS.
(check_loop_closed_ssa_stmt): Same.
* tree-ssa.c (verify_def): Remove V_MUST_DEF from comment.
(verify_use): Same.
(verify_ssa): Remove V_MUST_DEFs traces.
(verify_ssa): Remove SSA_OP_ALL_KILLS.
* tree-into-ssa.c (mark_def_sites): Change SSA_OP_VMUSTDEF to
SSA_OP_VMAYDEF.
(rewrite_update_stmt): Remove SSA_OP_VIRTUAL_KILLS.
(rewrite_stmt): Remove SSA_OP_ALL_KILLS.
* tree-ssa-operands.h (struct stmt_operands_d): Remove V_MUST_DEF
references.
(MUSTDEF_OPS): Remove.
(SSA_OP_VMUSTDEF): Remove.
(FOR_EACH_SSA_MUSTDEF_OPERAND): Remove.
(struct mustdef_optype_d): Remove.
Remove mustdef_optype_p.
(struct stmt_operands_d): Remove mustdef_ops.
(ssa_operand_iterator_d): Remove mustdefs and mustkills.
(SSA_OP_VIRTUAL_DEFS): Remove SSA_OP_VMUSTDEF.
(MUSTDEF_RESULT_PTR): Remove.
(MUSTDEF_RESULT): Remove.
(MUSTDEF_KILL_PTR): Remove.
(MUSTDEF_KILL): Remove.
(MUSTDEF_NUM): Remove.
(MUSTDEF_VECT): Remove.
(SSA_OP_VIRTUAL_KILLS): Remove.
(SSA_OP_ALL_VIRTUALS): Remove SSA_OP_VIRTUAL_KILLS.
(SSA_OP_VMUSTKILL): Remove.
(SSA_OP_ALL_KILLS): Remove.
(SSA_OP_ALL_OPERANDS): Remove SSA_OP_ALL_KILLS.
* tree-flow-inline.h (op_iter_init_def): Remove
SSA_OP_VIRTUAL_KILLS.
(delink_stmt_imm_use): Remove SSA_OP_ALL_KILLS.
* tree-ssa-pre.c (compute_rvuse_and_antic_safe): Remove
SSA_OP_VIRTUAL_KILLS.
* tree-ssa-loop-im.c (determine_max_movement): Remove
SSA_OP_VIRTUAL_KILLS.
(gather_mem_refs_stmt): Same.
(gather_mem_refs_stmt): Same.
* tree-ssa-dce.c (mark_really_necessary_kill_operand_phis): Delete.
(perform_tree_ssa_dce): Remove call to
mark_really_necessary_kill_operand_phis.
* tree-flow-inline.h (op_iter_init): Remove setting of mustdefs
and mustkills.
(op_iter_next_use): Do not check mustkills.
(op_iter_next_def): Do not check mustdefs.
(op_iter_next_tree): Do not check mustkills or mustdefs.
(clear_and_done_ssa_iter): Do not set mustdefs or mustkills.
(op_iter_next_maymustdef): Do not check mustkills.
(op_iter_init_must_and_may_def): Remove SSA_OP_VMUSTKILL.
(op_iter_init_mustdef): Remove.
* tree-ssa-live.c (create_ssa_var_map): Change SSA_OP_VMUSTDEF to
SSA_OP_VMAYDEF.
* tree-ssa-dse.c (dse_optimize_stmt): Remove SSA_OP_VMUSTDEF.
* tree-ssa-ccp.c: Remove V_MUST_DEF traces from comments.
(visit_assignment): Same.
* tree-ssa-copy.c (copy_prop_visit_assignment): Same.
* tree-sra.c (mark_all_v_defs_1): Remove V_MUST_DEF from comment.
* tree-outof-ssa.c (check_replaceable): Remove SSA_OP_VMUSTDEF.
* tree-pretty-print.c (dump_vops): Remove printing of V_MUST_DEF.
Remove kill_p variable.
* tree-dfa.c (struct dfa_stats_d): Remove num_v_must_defs.
(dump_dfa_stats): Remove code related to V_MUST_DEFs.
(collect_dfa_stats_r): Do not set num_v_must_defs.
(mark_new_vars_to_rename): Remove v_must_defs_{before,after}
code.
* tree-into-ssa.c (mark_def_sites): Change SSA_OP_VMUSTKILL to
SSA_OP_VMAYUSE.
* tree-ssa-pre.c (compute_rvuse_and_antic_safe): Remove
SSA_OP_VMUSTDEF and SSA_OP_VMUSTKILL.
* tree-ssa-propagate.c (stmt_makes_single_store): Remove
SSA_OP_VMUSTDEF.
From-SVN: r119760
* params.def (PARAM_MAX_SCHED_READY_INSNS): New parameter,
defaulting to 100.
* params.h (MAX_SCHED_READY_INSNS): New macro.
* haifa-sched.c: (queue_to_ready): Re-queue insns for the next cycle
past MAX_SCHED_READY_INSNS during the first scheduling pass.
(schedule_block): Delay insns past MAX_SCHED_READY_INSNS in
the ready list for 1 cycle during the first scheduling pass.
* doc/invoke.texi (--param): New parameter max-sched-ready-insns.
From-SVN: r112936
PR 21529
* params.def (PARAM_SRA_MAX_STRUCTURE_COUNT): New.
* params.h (SRA_MAX_STRUCTURE_COUNT): New.
* tree-sra.c (decide_block_copy): Use it. Disable element copy
if we'd have to instantiate too many members.
From-SVN: r102761
2005-04-22 Diego Novillo <dnovillo@redhat.com>
* Makefile.in (tree-into-ssa.o): Add dependency on PARAMS_H.
* lambda-code.c (perfect_nestify): Mark virtual operands in
the moved statement for renaming.
* params.def (PARAM_MIN_VIRTUAL_MAPPINGS): Define.
(PARAM_VIRTUAL_MAPPINGS_TO_SYMS_RATIO): Define.
* params.h (MIN_VIRTUAL_MAPPINGS): Define.
(VIRTUAL_MAPPINGS_TO_SYMS_RATIO): Define.
* tree-flow.h (struct var_ann_d): Update comments.
(rewrite_to_new_ssa_names_bb, rewrite_to_new_ssa_names,
allocate_ssa_names, find_phi_node_for, dump_tree_ssa,
debug_tree_ssa, debug_def_blocks, dump_tree_ssa_stats,
debug_tree_ssa_stats, rewrite_ssa_into_ssa,
dump_repl_tbl, debug_repl_tbl, dump_names_replaced_by,
debug_names_replaced_by): Remove declarations.
(delete_update_ssa, get_current_def, set_current_def): Declare.
(rewrite_into_loop_closed_ssa): Add new argument. Update
all callers.
* tree-into-ssa.c: Include params.h.
(old_virtual_ssa_names): Remove. Update all users.
(need_to_replace_names_p): Remove. Update all users.
(struct update_ssa_stats_d): Declare.
(update_ssa_stats): New local.
(dump_tree_ssa, debug_tree_ssa, debug_def_blocks,
dump_tree_ssa_stats, debug_tree_ssa_stats,
dump_update_ssa, debug_update_ssa,
dump_names_replaced_by, debug_names_replaced_by): Declare.
(get_current_def, set current_def): Make extern.
(is_old_name, is_new_name): Protect against references
past the end of the sets.
(add_new_name_mapping): Assert that OLD and NEW are
different SSA names for the same symbol.
When adding a virtual mapping, update stats for virtual
mapping heuristic.
(insert_phi_nodes_for): If UPDATE_P is true, create the
LHS of the new PHI by duplicating SSA name VAR.
(insert_phi_nodes_1): Remove. Update all users.
(insert_phi_nodes): Remove second argument. Update all
users.
(maybe_replace_use, maybe_replace_def): New.
(rewrite_update_stmt): Call them.
(mark_def_interesting): Remove calls to is_gimple_reg.
(prepare_phi_args_for_update): Remove. Update all users.
(prepare_block_for_update): Only process virtual operands
and GIMPLE registers in normal form.
(prepare_use_sites_for): New.
(prepare_names_to_update): Rename from prepare_def_sites.
Call prepare_use_sites_for.
(dump_update_ssa): Rename from dump_repl_tbl.
Update all users.
Show statistics for virtual mapping heuristic.
(debug_update_ssa): Rename from debug_debug_repl_tbl.
(init_update_ssa): Initialize UPDATE_SSA_STATS.
(delete_update_ssa): Make extern.
(mark_set_for_renaming): If the set is empty, do nothing.
(release_ssa_name_after_update_ssa): Update comment.
(insert_updated_phi_nodes_for): Do not remove existing
PHI nodes for symbols.
(switch_virtuals_to_full_rewrite_p): New.
(switch_virtuals_to_full_rewrite): New.
(update_ssa): Call them.
Clear REWRITE_THIS_STMT and REGISTER_DEFS_IN_THIS_STMT
for every statement before updating.
If all the names in NEW_SSA_NAMES have been marked for
removal, do nothing.
Only start at the top of the CFG if there are symbols in
SYMS_TO_RENAME.
(ssa_rewrite_finalize_block): Remove.
(ssa_register_new_def): Remove.
(ssa_rewrite_stmt): Remove.
(ssa_rewrite_phi_arguments): Remove.
(ssa_rewrite_initialize_block): Remove.
(ssa_mark_def_sites): Remove.
(ssa_mark_def_sites_initialize_block): Remove.
(ssa_mark_phi_uses): Remove.
(rewrite_ssa_into_ssa): Remove.
* tree-phinodes.c (find_phi_node_for): Remove.
* tree-ssa-loop-ivcanon.c (try_unroll_loop_completely):
Call update_ssa.
* tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops):
Remove calls to verify_dominators and
verify_loop_structure.
(tree_unswitch_single_loop): Call update_ssa.
* tree-ssa.c (verify_ssa): Assert that need_ssa_update_p
returns false.
Call verify_stmts.
(delete_tree_ssa): Assert that need_ssa_update_p returns
false.
* tree-vect-transform.c (vect_transform_loop): Call update_ssa.
* tree-vectorizer.c (allocate_new_names, rename_def_op,
free_new_names): Remove. Update all users.
(rename_use_op): Call get_current_def.
(rename_variables_in_bb): Do not handle any real or
virtual definition.
(slpeel_update_phis_for_duplicate_loop): Call
get_current_def and set_current_def instead of using
SSA_NAME_AUX.
(slpeel_update_phi_nodes_for_guard2): Reformat comments.
(slpeel_can_duplicate_loop_p): Call need_ssa_update_p,
ssa_names_to_replace and delete_update_ssa.
* doc/invoke.texi: Document --param min-virtual-mappings
and --param virtual-mappings-ratio.
2005-04-22 Zdenek Dvorak <dvorakz@suse.cz>
Diego Novillo <dnovillo@redhat.com>
* tree-cfg.c (tree_duplicate_bb): Call create_new_def_for
for newly created PHI nodes.
Call create_new_def_for for every new V_MAY_DEF and
V_MUST_DEF on the copied statement.
(struct ssa_name_map_entry): Remove.
(ssa_name_map_entry_hash): Remove.
(ssa_name_map_entry_eq): Remove.
(allocate_ssa_names): Remove.
(rewrite_to_new_ssa_names_def): Remove.
(rewrite_to_new_ssa_names_use): Remove.
(rewrite_to_new_ssa_names_bb): Remove.
(rewrite_to_new_ssa_names): Remove.
(tree_duplicate_sese_region): Remove variables ver,
definitions, phi, ssa_name_map and bi.
Call need_ssa_update_p instead of any_marked_for_rewrite_p.
Call update_ssa.
* tree-ssa-dom.c (tree_ssa_dominator_optimize): Call
update_ssa instead of rewrite_ssa_into_ssa.
* tree-ssa-loop-manip.c (add_exit_phis_edge): Call
create_new_def_for.
(find_uses_to_rename_use): Add argument 'need_phis'.
(find_uses_to_rename_stmt): Do not scan virtual operands.
(find_uses_to_rename): Only scan PHI nodes for
non-virtual names.
(rewrite_into_loop_closed_ssa): Call update_ssa.
(check_loop_closed_ssa_use): Ignore virtual operands.
(check_loop_closed_ssa_stmt): Likewise.
(verify_loop_closed_ssa): Do nothing if CURRENT_LOOPS is
NULL.
(rename_variables, set_phi_def_stmts): Remove.
(tree_duplicate_loop_to_header_edge): Reformat comment.
Remove variables BB, I and DEFINITIONS.
Call need_ssa_update_p.
Call update_ssa.
(lv_adjust_loop_header_phi): Reformat comment.
* tree-ssanames.c (ssa_names_to_rewrite): Remove.
(marked_for_rewrite_p, any_marked_for_rewrite_p,
mark_for_rewrite, unmark_all_for_rewrite,
marked_ssa_names): Remove. Update all users.
(release_ssa_name): If VAR has been registered for SSA
updating, do nothing.
* tree-vrp.c (new_ssa_names, old_ssa_names): Remove.
(build_assert_expr_for): Call register_new_name_mapping.
(insert_range_assertions): Update call to update_ssa.
* tree.h (mark_for_rewrite, unmark_all_for_rewrite,
marked_for_rewrite_p, any_marked_for_rewrite_p,
marked_ssa_names): Remove.
From-SVN: r98599
2005-04-06 Daniel Berlin <dberlin@dberlin.org>
* params.def (PARAM_SALIAS_MAX_IMPLICIT_FIELDS): New
* params.h (SALIAS_MAX_IMPLICIT_FIELDS): New
* doc/invoke.texi: Documnet salias-max-implicit-fields.
* tree-ssa-alias.c (struct used_part): Add implicit_uses and
explicit_uses members.
(get_or_create_used_part_for): Initialize new fields.
(fieldoff_compare): New function.
(create_overlap_variables_for): Count number of fields, use
heuristic to determine whether to create subvars for vars with
only implicit uses.
Sort the field list by offset and avoid creating duplicate SFT's.
From-SVN: r97746
PR rtl-optimization/15139
* combine.c: Include params.h.
(count_rtxs): New function.
(record_value_for_reg): If replace_rtx would replace at least
2 occurrences of REG in VALUE and TEM is really large, replace REG with
(clobber (const_int 0)) instead of TEM.
* params.def (PARAM_MAX_LAST_VALUE_RTL): New.
* params.h (MAX_LAST_VALUE_RTL): New.
* Makefile.in (combine.o): Depend on $(PARAMS_H).
* doc/invoke.texi (--param max-last-value-rtl=N): Document.
* gcc.dg/20050111-2.c: New test.
From-SVN: r93892
PR middle-end/18667
* params.c (set_param_value): Add range check.
* params.def: Add min and max values. Reformat long strings.
* params.h (struct param_info): Add min and max fields.
(enum compiler_param): Adjust DEFPARAM.
* toplev.c (lang_independent_params): Likewise.
From-SVN: r91567
2004-10-18 Revital Eres <eres@il.ibm.com>
* Makefile.in (loop-unroll.o): Add VARRAY_H dependency.
* loop-unroll.c: Include varray.h.
(struct var_to_expand, struct opt_info): Rename split_ivs_info to
opt_info and expand it to support variable expansion.
(analyze_insns_in_loop): Rename analyze_ivs_to_split and
expand it to support variable expansion.
(pt_info_start_duplication): Rename si_info_start_duplication.
(apply_opt_in_copies): Rename split_ivs_in_copies and add support
to the variable expansion optimization.
(free_opt_info): Rename free_si_info.
(analyze_insn_to_expand_var, referenced_in_one_insn_in_loop_p,
expand_var_during_unrolling, insert_var_expansion_initialization,
combine_var_copies_in_loop_exit, release_var_copies,
get_expansion): New functions.
(peel_loop_completely, unroll_loop_constant_iterations,
unroll_loop_runtime_iterations, peel_loop_simple,
unroll_loop_stupid): Change uses of struct si_info
to struct opt_info
and add uses of fvariable-expansion-in-unroller flag.
* params.def: Add parameter to restrict the number of expansions.
* params.h: (MAX_VARIABLE_EXPANSIONS): New define to restrict
the number of expansions.
* common.opt: (fvariable-expansion-in-unroller): New flag.
* doc/invoke.texi: (fvariable-expansion-in-unroller): Document.
From-SVN: r89197
2004-03-03 Mostafa Hagog <mustafa@il.ibm.com>
* common.opt: Add description of the new -fgcse-after-reload flag.
* flags.h (flag_gcse_after_reload): Declaration of global variable.
* gcse.c (reg_used_on_edge ,reg_set_between_after_reload_p,
reg_used_between_after_reload_p, rtx get_avail_load_store_reg,
is_jump_table_basic_block, bb_has_well_behaved_predecessors,
get_bb_avail_insn, hash_scan_set_after_reload,
compute_hash_table_after_reload, eliminate_partially_redundant_loads,
gcse_after_reload, get_bb_avail_insn): New functions to implement
gcse-after-reload.
(gcse_after_reload_main): New function, the main entry point to
gcse-after-reload.
* rtl.h (gcse_after_reload_main): Declaration of the new function.
* opts.c (common_handle_option): Handle the -fgcse-after-reload flag.
* toplev.c (flag_gcse_after_reload): Initialization.
* passes.c (rest_of_handl_gcse2): Call gcse_after_reload_main.
* params.def (PARAM_GCSE_AFTER_RELOAD_PARTIAL_FRACTION,
PARAM_GCSE_AFTER_RELOAD_CRITICAL_FRACTION): New parameters for tuning
the gcse after reload optimization.
* params.h (GCSE_AFTER_RELOAD_PARTIAL_FRACTION,
GCSE_AFTER_RELOAD_CRITICAL_FRACTION): Two macros to access the tuning
parameters.
* doc/invoke.texi: Documentation for the new flag gcse-after-reload.
From-SVN: r78842
2003-03-02 Kurt Garloff <garloff@suse.de>
* params.def: Introduce parameter max-inline-insns-rtl for
a separate limit for the RTL inliner.
* params.h: Likewise.
* integrate.c (function_cannot_inline_p): Use it.
* toplev.c (decode_f_option): Set multiple parameters
controlling inlining with -finline-limit.
* params.def: Fix orthographic and typographic errors.
* doc/invoke.texi: Document parameters controlling inlining
and the way -finline-limit sets multiple of them.
* tree.h (struct tree_decl): Introduce inlined_function_flag,
recording whether the function became eligible for inlining
by a compiler flag rather than the declaration.
Provide DID_INLINE_FUNC macro to access it.
* c-decl.c (grokdeclarator): Set DID_INLINE_FUNC.
* cp/decl.c (grokfndecl): Likewise.
* toplev.c (rest_of_compilation): Likewise.
* cp/optimize (maybe_clone_body): Copy DID_INLINE_FUNC.
* print-tree.c (print_node): Report it.
* params.def: Introduce new max-inline-insns-auto limit.
* params.h: Likewise.
* tree-inline.c (inlinable_function_p): Apply it to functions
with DID_INLINE_FUNC set.
* toplev.c (decode_f_option): Initialize it from -finline-limit
value.
* doc/invoke.texi: Document new parameter.
From-SVN: r63688
* tree-inline.c (inlinable_function_p): Improve heuristics
by using a smoother function to cut down allowable inlinable size.
* param.def: Add parameters max-inline-insns-single,
max-inline-slope, min-inline-insns that determine the exact
shape of the above function.
* param.h: Likewise.
From-SVN: r52832
2001-07-26 Andrew MacLeod <amacleod@redhat.com>
* params.def (PARAM_MAX_PENDING_LIST_LENGTH): Add parameter to
limit length of dependancy flush list.
* params.h (MAX_PENDING_LIST_LENGTH): Define.
* sched-int.h (struct deps): Add pending_flush_length field.
* sched-deps.c (flush_pending_lists): Last_pending_memory_flush now
has 1 element in it.
(sched_analyze_1): Use MAX_PENDING_LIST_LENGTH.
(sched_analyze): After a jump, if the pending memory flush list is too
large, flush the pending lists.
(init_deps): Initialize pending_flush_length to 0.
* doc/invoke.texi (max_pending_list_length): Document parameter.
From-SVN: r44398
2001-06-26 Daniel Berlin <dan@cgsoftware.com>
* doc/invoke.texi: Add description of max-gcse-passes param.
* gcse.c (gcse_main): Use MAX_GCSE_PASSES instead of MAX_PASSES.
(MAX_PASSES): Remove now unneeded macro.
* params.h (MAX_GCSE_PASSES): New macro, to get parameter value of
max-gcse-passes param.
* params.def (PARAM_MAX_GCSE_PASSES): New parameter, controlling
maximum number of GCSE passes to run. Defaults to 1 (which is what
MAX_PASSES in gcse.c used to be).
From-SVN: r43610
Alexandre Oliva
Ghassan Shobaki
Martin Jambor
Ira Rosen
Steven Bosscher
Richard Guenther
Jakub Jelinek
Vladimir Makarov
Olga Golovanevsky
Zdenek Dvorak
Nick Clifton
Douglas Gregor
Diego Novillo
Dorit Nuzman
Diego Novillo
Zdenek Dvorak
Eric Botcazou
Daniel Berlin
Richard Henderson
Kelley Cook
Kazu Hirata
Nathan Sidwell
Ben Elliston
Revital Eres
Nathan Sidwell
Ayal Zaks
Mostafa Hagog
Andreas Jaeger
Kurt Garloff
Michael Meissner
Zack Weinberg
Kaveh R. Ghazi
Lars Brinkhoff
Andrew MacLeod
Daniel Berlin
Richard Henderson