PR rtl-optimization/37360
* config/mips/mips.c (cached_can_issue_more): New local variable.
(mips_sched_reorder_1): New.
(mips_sched_reorder): Use mips_sched_reorder_1.
(mips_sched_reorder2): New.
(mips_variable_issue): Set cached_can_issue_more.
(TARGET_SCHED_REORDER2): Define to mips_sched_reorder2
instead of mips_sched_reorder.
Revert
2008-09-09 Andrey Belevantsev <abel@ispras.ru>
PR rtl-optimization/37360
* haifa-sched.c (max_issue): Do not assert that we never issue more
insns than issue_rate. Add comment.
testsuite/
PR rtl-optimization/37360
* gcc.dg/pr37360.c: New test.
From-SVN: r165880
PR debug/44223
* haifa-sched.c (schedule_insn): When freeing INSN_REG_USE_LIST,
unchain each use from the cyclic next_regno_use chain first.
* gcc.target/i386/pr44223.c: New test.
From-SVN: r159680
PR debug/44178
* haifa-sched.c (initiate_bb_reg_pressure_info): Do not call
setup_ref_regs for DEBUG_INSNs.
* g++.dg/debug/pr44178.C: New test.
From-SVN: r159632
* sel-sched.c (create_speculation_check): Remove set but not used
variable twin.
(try_transformation_cache): Remove set but not used variable ds.
(calculate_privileged_insns): Remove set but not used variables
cur_insn and min_spec_insn.
(find_best_expr): Remove set but not used variable avail_n.
* tree-predcom.c (base_names_in_chain_on): Remove set but not used
variable e.
* cgraphunit.c (assemble_thunk): Remove set but not used variable
false_label.
* haifa-sched.c (remove_notes): Remove set but not used variable prev.
* graphite-clast-to-gimple.c (gloog): Remove set but not used variable
new_scop_exit_edge.
* decl.c (create_array_type_for_decl): Remove set but not used
variable error_msg. Remove break stmts after return stmts.
From-SVN: r156072
2009-09-02 Vladimir Makarov <vmakarov@redhat.com>
* doc/invoke.texi (-fsched-pressure): Document it.
(-fsched-reg-pressure-heuristic): Remove it.
* reload.c (ira.h): Include.
(find_reloads): Add choosing reload on number of small spilled
classes.
* haifa-sched.c (ira.h): Include.
(sched_pressure_p, sched_regno_cover_class, curr_reg_pressure,
saved_reg_pressure, curr_reg_live, saved_reg_live,
region_ref_regs): New variables.
(sched_init_region_reg_pressure_info, mark_regno_birth_or_death,
initiate_reg_pressure_info, setup_ref_regs,
initiate_bb_reg_pressure_info, save_reg_pressure,
restore_reg_pressure, dying_use_p, print_curr_reg_pressure): New
functions.
(setup_insn_reg_pressure_info): New function.
(rank_for_schedule): Add pressure checking and insn issue time.
Remove comparison of insn reg weights.
(ready_sort): Set insn reg pressure info.
(update_register_pressure, setup_insn_max_reg_pressure,
update_reg_and_insn_max_reg_pressure,
sched_setup_bb_reg_pressure_info): New functions.
(schedule_insn): Add code for printing and updating reg pressure
info.
(find_set_reg_weight, find_insn_reg_weight): Remove.
(ok_for_early_queue_removal): Do nothing if pressure_only_p.
(debug_ready_list): Print reg pressure info.
(schedule_block): Ditto. Check insn issue time.
(sched_init): Set up sched_pressure_p. Allocate and set up some
reg pressure related info.
(sched_finish): Free some reg pressure related info.
(fix_tick_ready): Make insn always ready if pressure_p.
(init_h_i_d): Don't call find_insn_reg_weight.
(haifa_finish_h_i_d): Free insn reg pressure info.
* ira-int.h (ira_hard_regno_cover_class, ira_reg_class_nregs,
ira_memory_move_cost, ira_class_hard_regs,
ira_class_hard_regs_num, ira_no_alloc_regs,
ira_available_class_regs, ira_reg_class_cover_size,
ira_reg_class_cover, ira_class_translate): Move to ira.h.
* ira-lives.c (single_reg_class): Check mode to find how many
registers are necessary for operand.
(ira_implicitly_set_insn_hard_regs): New.
* common.opt (fsched-pressure): New options.
(fsched-reg-pressure-heuristic): Remove.
* ira.c (setup_eliminable_regset): Rename to
ira_setup_eliminable_regset. Make it external.
(expand_reg_info): Pass cover class to setup_reg_classes.
(ira): Call resize_reg_info instead of allocate_reg_info.
* sched-deps.c: Include ira.h.
(implicit_reg_pending_clobbers, implicit_reg_pending_uses): New.
(create_insn_reg_use, create_insn_reg_set, setup_insn_reg_uses,
reg_pressure_info, insn_use_p, mark_insn_pseudo_birth,
mark_insn_hard_regno_birth, mark_insn_reg_birth,
mark_pseudo_death, mark_hard_regno_death, mark_reg_death,
mark_insn_reg_store, mark_insn_reg_clobber,
setup_insn_reg_pressure_info): New.
(sched_analyze_1): Update implicit_reg_pending_uses.
(sched_analyze_insn): Find implicit sets, uses, clobbers of regs.
Use them to create dependencies. Set insn reg uses and pressure
info. Process reg_pending_uses in one place.
(free_deps): Free implicit sets.
(remove_from_deps): Remove implicit sets if necessary. Check
implicit sets when clearing reg_last_in_use.
(init_deps_global): Clear implicit_reg_pending_clobbers and
implicit_reg_pending_uses.
* ira.h (ira_hard_regno_cover_class, ira_reg_class_nregs,
ira_memory_move_cost, ira_class_hard_regs,
ira_class_hard_regs_num, ira_no_alloc_regs,
ira_available_class_regs, ira_reg_class_cover_size,
ira_reg_class_cover, ira_class_translate): Move from ira-int.h.
(ira_setup_eliminable_regset, ira_set_pseudo_classes,
ira_implicitly_set_insn_hard_regs): New prototypes.
* ira-costs.c (pseudo_classes_defined_p, allocno_p,
cost_elements_num): New variables.
(allocno_costs, total_costs): Rename to costs and
total_allocno_costs.
(COSTS_OF_ALLOCNO): Rename to COSTS.
(allocno_pref): Rename to pref.
(allocno_pref_buffer): Rename to pref_buffer.
(common_classes): Rename to regno_cover_class.
(COST_INDEX): New.
(record_reg_classes): Set allocno attributes only if allocno_p.
(record_address_regs): Ditto. Use COST_INDEX instead of
ALLOCNO_NUM.
(scan_one_insn): Use COST_INDEX and COSTS instead of ALLOCNO_NUM
and COSTS_OF_ALLOCNO.
(print_costs): Rename to print_allocno_costs.
(print_pseudo_costs): New.
(process_bb_node_for_costs): Split into 2 functions with new
function process_bb_for_costs. Pass BB to process_bb_for_costs.
(find_allocno_class_costs): Rename to find_costs_and_classes. Add
new parameter dump_file. Use cost_elements_num instead of
ira_allocnos_num. Make one iteration if preferred classes were
already calculated for scheduler. Make 2 versions of code
depending on allocno_p.
(setup_allocno_cover_class_and_costs): Check allocno_p. Use
regno_cover_class and COSTS instead of common_classes and
COSTS_OF_ALLOCNO.
(init_costs, finish_costs): New.
(ira_costs): Set up allocno_p and cost_elements_num. Call
init_costs and finish_costs.
(ira_set_pseudo_classes): New.
* rtl.h (allocate_reg_info): Remove.
(resize_reg_info): Change return type.
(reg_cover_class): New.
(setup_reg_classes): Add new parameter.
* sched-int.h (struct deps_reg): New member implicit_sets.
(sched_pressure_p, sched_regno_cover_class): New external
definitions.
(INCREASE_BITS): New macro.
(struct reg_pressure_data, struct reg_use_data): New.
(struct _haifa_insn_data): Remove reg_weight. Add members
reg_pressure, reg_use_list, reg_set_list, and
reg_pressure_excess_cost_change.
(struct deps): New member implicit_sets.
(pressure_p): New variable.
(COVER_CLASS_BITS, INCREASE_BITS): New macros.
(struct reg_pressure_data, struct reg_use_data): New.
(INSN_REG_WEIGHT): Remove.
(INSN_REG_PRESSURE, INSN_MAX_REG_PRESSURE, INSN_REG_USE_LIST,
INSN_REG_SET_LIST, INSN_REG_PRESSURE_EXCESS_COST_CHANGE): New
macros.
(sched_init_region_reg_pressure_info,
sched_setup_bb_reg_pressure_info): New prototypes.
* reginfo.c (struct reg_pref): New member coverclass.
(reg_cover_class): New function.
(reginfo_init, pass_reginfo_init): Move after free_reg_info.
(reg_info_size): New variable.
(allocate_reg_info): Make static. Setup reg_info_size.
(resize_reg_info): Use reg_info_size. Return flag of resizing.
(setup_reg_classes): Add a new parameter. Setup cover class too.
* Makefile.in (reload.o, haifa-sched.o, sched-deps.o): Add ira.h to the
dependencies.
* sched-rgn.c (deps_join): Set up implicit_sets.
(schedule_region): Set up region and basic blocks pressure
relative info.
* passes.c (init_optimization_passes): Move
pass_subregs_of_mode_init before pass_sched.
From-SVN: r151348
* haifa-sched.c
(rank_for_schedule): Introduced flags to enable/disable
individual scheduling heuristics.
* common.opt: Introduced flags to enable/disable
individual heuristics in the scheduler.
* doc/invoke.texi: Introduced flags to enable/disable
individual heuristics in the scheduler.
From-SVN: r149603
2008-10-14 Andrey Belevantsev <abel@ispras.ru>
Dmitry Melnik <dm@ispras.ru>
Dmitry Zhurikhin <zhur@ispras.ru>
Alexander Monakov <amonakov@ispras.ru>
Maxim Kuvyrkov <maxim@codesourcery.com>
* target.h (struct gcc_target): Update prototypes of needs_block_p
and gen_spec_check.
* haifa-sched.c (create_check_block_twin): Update calls to the above.
* sel-sched.c (create_speculation_check): Likewise.
* doc/tm.texi: Provide documentation for new target hooks.
* config/ia64/ia64.c: Include sel-sched.h. Rewrite speculation hooks.
(ia64_gen_spec_insn): Removed.
(get_spec_check_gen_function, insn_can_be_in_speculative_p,
ia64_gen_spec_check): New static functions.
(ia64_alloc_sched_context, ia64_init_sched_context,
ia64_set_sched_context, ia64_clear_sched_context,
ia64_free_sched_context, ia64_get_insn_spec_ds,
ia64_get_insn_checked_ds, ia64_skip_rtx_p): Declare functions.
(ia64_needs_block_p): Change prototype.
(ia64_gen_check): Rename to ia64_gen_spec_check.
(ia64_adjust_cost): Rename to ia64_adjust_cost_2. Add new parameter
into declaration, add special memory dependencies handling.
(TARGET_SCHED_ALLOC_SCHED_CONTEXT, TARGET_SCHED_INIT_SCHED_CONTEXT,
TARGET_SCHED_SET_SCHED_CONTEXT, TARGET_SCHED_CLEAR_SCHED_CONTEXT,
TARGET_SCHED_FREE_SCHED_CONTEXT, TARGET_SCHED_GET_INSN_SPEC_DS,
TARGET_SCHED_GET_INSN_CHECKED_DS, TARGET_SCHED_SKIP_RTX_P):
Define new target hooks.
(TARGET_SCHED_GEN_CHECK): Rename to TARGET_SCHED_GEN_SPEC_CHECK.
(ia64_optimization_options): Turn on selective scheduling with -O3,
disable -fauto-inc-dec. Set mflag_sched_control_spec to true by default
with selective scheduling.
(ia64_override_options): Initialize align_loops and align_functions
to 32 and 64, respectively. Set global selective scheduling flags
according to target-dependent flags.
(rtx_needs_barrier): Support UNSPEC_LDS_A.
(group_barrier_needed): Use new mstop-bit-before-check flag.
Add heuristic.
(dfa_state_size): Make global.
(spec_check_no, max_uid): Remove.
(mem_ops_in_group, current_cycle): New variables.
(ia64_sched_init): Disable checks for !SCHED_GROUP_P after reload.
Initialize new variables.
(is_load_p, record_memory_reference): New functions.
(ia64_dfa_sched_reorder): Lower priority of loads when limit is
reached.
(ia64_variable_issue): Change use of current_sched_info to
sched_deps_info. Update comment. Note if a load or a store is issued.
(ia64_first_cycle_multipass_dfa_lookahead_guard_spec): Require a cycle
advance if maximal number of loads or stores was issued on current
cycle.
(scheduled_good_insn): New static helper function.
(ia64_dfa_new_cycle): Assert that last_scheduled_insn is set when
a group barrier is needed. Fix vertical spacing. Guard the code
doing state transition with last_scheduled_insn check.
Mark that a stop bit should be before current insn if there was a
cycle advance. Update current_cycle and mem_ops_in_group.
(ia64_h_i_d_extended): Change use of current_sched_info to
sched_deps_info. Reallocate stops_p by larger chunks.
(struct _ia64_sched_context): New structure.
(ia64_sched_context_t): New typedef.
(ia64_alloc_sched_context, ia64_init_sched_context,
ia64_set_sched_context, ia64_clear_sched_context,
ia64_free_sched_context): New static functions.
(gen_func_t): New typedef.
(get_spec_load_gen_function): New function.
(SPEC_GEN_EXTEND_OFFSET): Declare.
(ia64_set_sched_flags): Check common_sched_info instead of *flags.
(get_mode_no_for_insn): Change the condition that prevents use of
special hardware registers so it can now handle pseudos.
(get_spec_unspec_code): New function.
(ia64_skip_rtx_p, get_insn_spec_code, ia64_get_insn_spec_ds,
ia64_get_insn_checked_ds, ia64_gen_spec_load): New static functions.
(ia64_speculate_insn, ia64_needs_block_p): Support branchy checks
during selective scheduling.
(ia64_speculate_insn): Use ds_get_speculation_types when
determining whether we need to change the pattern.
(SPEC_GEN_LD_MAP, SPEC_GEN_CHECK_OFFSET): Declare.
(ia64_spec_check_src_p): Support new speculation/check codes.
(struct bundle_state): New field.
(issue_nops_and_insn): Initialize it.
(insert_bundle_state): Minimize mid-bundle stop bits.
(important_for_bundling_p): New function.
(get_next_important_insn): Use important_for_bundling_p.
(bundling): When shifting TImode from unimportant insns, ignore
also group barriers. Assert that best state is found before
the backward bundling pass. Print number of mid-bundle stop bits.
Minimize mid-bundle stop bits. Check correct calculation of
mid-bundle stop bits.
(ia64_sched_finish, final_emit_insn_group_barriers): Fix formatting.
(final_emit_insn_group_barriers): Emit stop bits before insns starting
a new cycle.
(sel2_run): New variable.
(ia64_reorg): When flag_selective_scheduling2 is set, run the selective
scheduling pass instead of schedule_ebbs.
* config/ia64/ia64.md (speculable1, speculable2): New attributes.
(UNSPEC_LDS_A): New UNSPEC.
(movqi_internal, movhi_internal, movsi_internal, movdi_internal,
movti_internal, movsf_internal, movdf_internal,
movxf_internal): Make visible. Add speculable* attributes.
(output_c_nc): New mode attribute.
(mov<mode>_speculative_a, zero_extend<mode>di2_speculative_a,
mov<mode>_nc, zero_extend<mode>di2_nc,
advanced_load_check_nc_<mode>): New insns.
(zero_extend*): Add speculable* attributes.
* config/ia64/ia64.opt (msched_fp_mem_deps_zero_cost): New option.
(msched-stop-bits-after-every-cycle): Likewise.
(msched-max-memory-insns,
msched-max-memory-insns-hard-limit): Likewise.
(msched-spec-verbose): Remove.
(msched-prefer-non-data-spec-insns,
msched-prefer-non-control-spec-insns, msched-count-spec-in-critical-path,
msel-sched-dont-check-control-spec): Use Target
Report Var instead of Common Report Var.
* config/ia64/itanium2.md: Remove incorrect bypass.
* config/ia64/t-ia64 (ia64.o): Add dependency on sel-sched.h.
Co-Authored-By: Alexander Monakov <amonakov@ispras.ru>
Co-Authored-By: Dmitry Melnik <dm@ispras.ru>
Co-Authored-By: Dmitry Zhurikhin <zhur@ispras.ru>
Co-Authored-By: Maxim Kuvyrkov <maxim@codesourcery.com>
From-SVN: r141108
* haifa-sched.c (dep_cost_1): Recognize the producer even if the
consumer is an asm. Add comment why this is important.
(choose_ready): Add comment to the "INSN_CODE (insn) >= 0 ||
recog_memoized (insn) < 0" assert. Put ENABLE_CHECKING around
it.
From-SVN: r140444
* haifa-sched.c (advance_one_cycle): Do not print '\n' before printing
dump message.
(choose_ready): When first insn is chosen from the ready list, also
dump it.
From-SVN: r140152
2008-08-31 Andrey Belevantsev <abel@ispras.ru>
Dmitry Melnik <dm@ispras.ru>
Dmitry Zhurikhin <zhur@ispras.ru>
Alexander Monakov <amonakov@ispras.ru>
Maxim Kuvyrkov <maxim@codesourcery.com>
* sel-sched.h, sel-sched-dump.h, sel-sched-ir.h, sel-sched.c,
sel-sched-dump.c, sel-sched-ir.c: New files.
* Makefile.in (OBJS-common): Add selective scheduling object
files.
(sel-sched.o, sel-sched-dump.o, sel-sched-ir.o): New entries.
(SEL_SCHED_IR_H, SEL_SCHED_DUMP_H): New entries.
(sched-vis.o): Add dependency on $(INSN_ATTR_H).
* cfghooks.h (get_cfg_hooks, set_cfg_hooks): New prototypes.
* cfghooks.c (get_cfg_hooks, set_cfg_hooks): New functions.
(make_forwarder_block): Update loop latch if we have redirected
the loop latch edge.
* cfgloop.c (get_loop_body_in_custom_order): New function.
* cfgloop.h (LOOPS_HAVE_FALLTHRU_PREHEADERS): New enum field.
(CP_FALLTHRU_PREHEADERS): Likewise.
(get_loop_body_in_custom_order): Declare.
* cfgloopmanip.c (has_preds_from_loop): New.
(create_preheader): Honor CP_FALLTHRU_PREHEADERS.
Assert that the preheader edge will be fall thru when it is set.
* common.opt (fsel-sched-bookkeeping, fsel-sched-pipelining,
fsel-sched-pipelining-outer-loops, fsel-sched-renaming,
fsel-sched-substitution, fselective-scheduling): New flags.
* cse.c (hash_rtx_cb): New.
(hash_rtx): Use it.
* dbgcnt.def (sel_sched_cnt, sel_sched_region_cnt,
sel_sched_insn_cnt): New counters.
* final.c (compute_alignments): Export. Free dominance info after loop_optimizer_finalize.
* genattr.c (main): Output maximal_insn_latency prototype.
* genautomata.c (output_default_latencies): New. Factor its code from ...
(output_internal_insn_latency_func): ... here.
(output_internal_maximal_insn_latency_func): New.
(output_maximal_insn_latency_func): New.
* hard-reg-set.h (UHOST_BITS_PER_WIDE_INT): Define unconditionally.
(struct hard_reg_set_iterator): New.
(hard_reg_set_iter_init, hard_reg_set_iter_set,
hard_reg_set_iter_next): New functions.
(EXECUTE_IF_SET_IN_HARD_REG_SET): New macro.
* lists.c (remove_free_INSN_LIST_node,
remove_free_EXPR_LIST_node): New functions.
* loop-init.c (loop_optimizer_init): When LOOPS_HAVE_FALLTHRU_PREHEADERS,
set CP_FALLTHRU_PREHEADERS when calling create_preheaders.
(loop_optimizer_finalize): Do not verify flow info after reload.
* recog.c (validate_replace_rtx_1): New parameter simplify.
Default it to true. Update all uses. Factor out simplifying
code to ...
(simplify_while_replacing): ... this new function.
(validate_replace_rtx_part,
validate_replace_rtx_part_nosimplify): New.
* recog.h (validate_replace_rtx_part,
validate_replace_rtx_part_nosimplify): Declare.
* rtl.c (rtx_equal_p_cb): New.
(rtx_equal_p): Use it.
* rtl.h (rtx_equal_p_cb, hash_rtx_cb): Declare.
(remove_free_INSN_LIST_NODE, remove_free_EXPR_LIST_node,
debug_bb_n_slim, debug_bb_slim, print_rtl_slim): Likewise.
* vecprim.h: Add a vector type for unsigned int.
* haifa-sched.c: Include vecprim.h and cfgloop.h.
(issue_rate, sched_verbose_param, note_list, dfa_state_size,
ready_try, cycle_issued_insns, spec_info): Make global.
(readyp): Initialize.
(dfa_lookahead): New global variable.
(old_max_uid, old_last_basic_block): Remove.
(h_i_d): Make it a vector.
(INSN_TICK, INTER_TICK, QUEUE_INDEX, INSN_COST): Make them work
through HID macro.
(after_recovery, adding_bb_to_current_region_p):
New variables to handle correct insertion of the recovery code.
(struct ready_list): Move declaration to sched-int.h.
(rgn_n_insns): Removed.
(rtx_vec_t): Move to sched-int.h.
(find_insn_reg_weight): Remove.
(find_insn_reg_weight1): Rename to find_insn_reg_weight.
(haifa_init_h_i_d, haifa_finish_h_i_d):
New functions to initialize / finalize haifa instruction data.
(extend_h_i_d, init_h_i_d): Rewrite.
(unlink_other_notes): Move logic to add_to_note_list. Handle
selective scheduler.
(ready_lastpos, ready_element, ready_sort, reemit_notes,
find_fallthru_edge): Make global, remove static prototypes.
(max_issue): Make global. Add privileged_n and state parameters. Use
them.
(extend_global, extend_all): Removed.
(init_before_recovery): Add new param. Fix the handling of the case
when we insert a recovery code before the EXIT which has a predecessor
with a fallthrough edge to it.
(create_recovery_block): Make global. Rename to
sched_create_recovery_block. Update.
(change_pattern): Rename to sched_change_pattern. Make global.
(speculate_insn): Rename to sched_speculate_insn. Make global.
Split haifa-specific functionality into ...
(haifa_change_pattern): New static function.
(sched_extend_bb): New static function.
(sched_init_bbs): New function.
(current_sched_info): Change type to struct haifa_sched_info.
(insn_cost): Adjust for selective scheduling.
(dep_cost_1): New function. Move logic from ...
(dep_cost): ... here.
(dep_cost): Use dep_cost_1.
(contributes_to_priority_p): Use sched_deps_info instead of
current_sched_info.
(priority): Adjust to work with selective scheduling. Process the
corner case when all dependencies don't contribute to priority.
(rank_for_schedule): Use ds_weak instead of dep_weak.
(advance_state): New function. Move logic from ...
(advance_one_cycle): ... here.
(add_to_note_list, concat_note_lists): New functions.
(rm_other_notes): Make static. Adjust for selective scheduling.
(remove_notes, restore_other_notes): New functions.
(move_insn): Add two arguments. Update assert. Don't call
reemit_notes.
(choose_ready): Remove lookahead variable, use dfa_lookahead.
Remove more_issue, max_points. Move the code to initialize
max_lookahead_tries to max_issue.
(schedule_block): Remove rgn_n_insns1 parameter. Don't allocate
ready. Adjust use of move_insn. Call restore_other_notes.
(luid): Remove.
(sched_init, sched_finish): Move Haifa-specific initialization/
finalization to ...
(haifa_sched_init, haifa_sched_finish): ... respectively.
New functions.
(setup_sched_dump): New function.
(haifa_init_only_bb): New static function.
(haifa_speculate_insn): New static function.
(try_ready): Use haifa_* instead of speculate_insn and
change_pattern.
(extend_ready, extend_all): Remove.
(sched_extend_ready_list, sched_finish_ready_list): New functions.
(create_check_block_twin, add_to_speculative_block): Use
haifa_insns_init instead of extend_global. Update to use new
initialization functions. Change parameter. Factor out code from
create_check_block_twin to ...
(sched_create_recovery_edges) ... this new function.
(add_block): Remove.
(sched_scan_info): New.
(extend_bb): Use sched_scan_info.
(init_bb, extend_insn, init_insn, init_insns_in_bb, sched_scan): New
static functions for walking through scheduling region.
(sched_luids): New vector variable to replace uid_to_luid.
(luids_extend_insn): New function.
(sched_max_luid): New variable.
(luids_init_insn): New function.
(sched_init_luids, sched_finish_luids): New functions.
(insn_luid): New debug function.
(sched_extend_target): New function.
(haifa_init_insn): New static function.
(sched_init_only_bb): New hook.
(sched_split_block): New hook.
(sched_split_block_1): New function.
(sched_create_empty_bb): New hook.
(sched_create_empty_bb_1): New function.
(common_sched_info, ready): New global variables.
(current_sched_info_var): Remove.
(move_block_after_check): Use common_sched_info.
(haifa_luid_for_non_insn): New static function.
(init_before_recovery): Use haifa_init_only_bb instead of
add_block.
(increase_insn_priority): New.
* modulo-sched.c: (issue_rate): Remove static declaration.
(sms_sched_info): Change type to haifa_sched_info.
(sms_sched_deps_info, sms_common_sched_info): New variables.
(setup_sched_infos): New.
(sms_schedule): Initialize them. Call haifa_sched_init/finish.
Do not call regstat_free_calls_crossed.
(sms_print_insn): Use const_rtx.
* params.def (PARAM_MAX_PIPELINE_REGION_BLOCKS,
PARAM_MAX_PIPELINE_REGION_INSNS, PARAM_SELSCHED_MAX_LOOKAHEAD,
PARAM_SELSCHED_MAX_SCHED_TIMES, PARAM_SELSCHED_INSNS_TO_RENAME,
PARAM_SCHED_MEM_TRUE_DEP_COST): New.
* sched-deps.c (sched_deps_info): New. Update all relevant uses of
current_sched_info to use it.
(enum reg_pending_barrier_mode): Move to sched-int.h.
(h_d_i_d): New variable. Initialize to NULL.
({true, output, anti, spec, forward}_dependency_cache): Initialize
to NULL.
(estimate_dep_weak): Remove static declaration.
(sched_has_condition_p): New function. Adjust users of
sched_get_condition to use it instead.
(conditions_mutex_p): Add arguments indicating which conditions are
reversed. Use them.
(sched_get_condition_with_rev): Rename from sched_get_condition. Add
argument to indicate whether returned condition is reversed. Do not
generate new rtx when condition should be reversed; indicate it by
setting new argument instead.
(add_dependence_list_and_free): Add deps parameter.
Update all users. Do not free dependence list when
deps context is readonly.
(add_insn_mem_dependence, flush_pending_lists): Adjust for readonly
contexts.
(remove_from_dependence_list, remove_from_both_dependence_lists): New.
(remove_from_deps): New. Use the above functions.
(cur_insn, can_start_lhs_rhs_p): New static variables.
(add_or_update_back_dep_1): Initialize present_dep_type.
(haifa_start_insn, haifa_finish_insn, haifa_note_reg_set,
haifa_note_reg_clobber, haifa_note_reg_use, haifa_note_mem_dep,
haifa_note_dep): New functions implementing dependence hooks for
the Haifa scheduler.
(note_reg_use, note_reg_set, note_reg_clobber, note_mem_dep,
note_dep): New functions.
(ds_to_dt, extend_deps_reg_info, maybe_extend_reg_info_p): New
functions.
(init_deps): Initialize last_reg_pending_barrier and deps->readonly.
(free_deps): Initialize deps->reg_last.
(sched_analyze_reg, sched_analyze_1, sched_analyze_2,
sched_analyze_insn): Update to use dependency hooks infrastructure
and readonly contexts.
(deps_analyze_insn): New function. Move part of logic from ...
(sched_analyze): ... here. Also move some logic to ...
(deps_start_bb): ... here. New function.
(add_forw_dep, delete_forw_dep): Guard use of INSN_DEP_COUNT with
sel_sched_p.
(sched_deps_init): New function. Move code from ...
(init_dependency_caches): ... here. Remove.
(init_deps_data_vector): New.
(sched_deps_finish): New function. Move code from ...
(free_dependency_caches): ... here. Remove.
(init_deps_global, finish_deps_global): Adjust for use with
selective scheduling.
(get_dep_weak): Move logic to ...
(get_dep_weak_1): New function.
(ds_merge): Move logic to ...
(ds_merge_1): New static function.
(ds_full_merge, ds_max_merge, ds_get_speculation_types): New functions.
(ds_get_max_dep_weak): New function.
* sched-ebb.c (sched_n_insns): Rename to sched_rgn_n_insns.
(n_insns): Rename to rgn_n_insns.
(debug_ebb_dependencies): New function.
(init_ready_list): Use it.
(begin_schedule_ready): Use sched_init_only_bb.
(ebb_print_insn): Indicate when an insn starts a new cycle.
(contributes_to_priority, compute_jump_reg_dependencies,
add_remove_insn, fix_recovery_cfg): Add ebb_ prefix to function names.
(add_block1): Remove to ebb_add_block.
(ebb_sched_deps_info, ebb_common_sched_info): New variables.
(schedule_ebb): Initialize them. Use remove_notes instead of
rm_other_notes. Use haifa_local_init/finish.
(schedule_ebbs): Use haifa_sched_init/finish.
* sched-int.h: Include vecprim.h, remove rtl.h.
(struct ready_list): Delete declaration.
(sched_verbose_param, enum sched_pass_id_t,
bb_vec_t, insn_vec_t, rtx_vec_t): New.
(struct sched_scan_info_def): New structure.
(sched_scan_info, sched_scan, sched_init_bbs,
sched_init_luids, sched_finish_luids, sched_extend_target,
haifa_init_h_i_d, haifa_finish_h_i_d): Declare.
(struct common_sched_info_def): New.
(common_sched_info, haifa_common_sched_info,
sched_emulate_haifa_p): Declare.
(sel_sched_p): New.
(sched_luids): Declare.
(INSN_LUID, LUID_BY_UID, SET_INSN_LUID): Declare.
(sched_max_luid, insn_luid): Declare.
(note_list, remove_notes, restore_other_notes, bb_note): Declare.
(sched_insns_init, sched_insns_finish, xrecalloc, reemit_notes,
print_insn, print_pattern, print_value, haifa_classify_insn,
sel_find_rgns, sel_mark_hard_insn, dfa_state_size, advance_state,
setup_sched_dump, sched_init, sched_finish,
sel_insn_is_speculation_check): Export.
(struct ready_list): Move from haifa-sched.c.
(ready_try, ready, max_issue): Export.
(ebb_compute_jump_reg_dependencies, find_fallthru_edge,
sched_init_only_bb, sched_split_block, sched_split_block_1,
sched_create_empty_bb, sched_create_empty_bb_1,
sched_create_recovery_block, sched_create_recovery_edges): Export.
(enum reg_pending_barrier_mode): Export.
(struct deps): New fields `last_reg_pending_barrier' and `readonly'.
(deps_t): New.
(struct sched_info): Rename to haifa_sched_info. Use const_rtx for
print_insn field. Move add_block and fix_recovery_cfg to
common_sched_info_def. Move compute_jump_reg_dependencies, use_cselib ...
(struct sched_deps_info_def): ... this new structure.
(sched_deps_info): Declare.
(struct spec_info_def): Remove weakness_cutoff, add
data_weakness_cutoff and control_weakness_cutoff.
(spec_info): Declare.
(struct _haifa_deps_insn_data): Split from haifa_insn_data. Add
dep_count field.
(struct haifa_insn_data): Rename to struct _haifa_insn_data.
(haifa_insn_data_def, haifa_insn_data_t): New typedefs.
(current_sched_info): Change type to struct haifa_sched_info.
(haifa_deps_insn_data_def, haifa_deps_insn_data_t): New typedefs.
(h_d_i_d): New variable.
(HDID): New accessor macro.
(h_i_d): Change type to VEC (haifa_insn_data_def, heap) *.
(HID): New accessor macro. Rewrite h_i_d accessor macros through HID
and HDID.
(IS_SPECULATION_CHECK_P): Update for selective scheduler.
(enum SCHED_FLAGS): Update for selective scheduler.
(enum SPEC_SCHED_FLAGS): New flag SEL_SCHED_SPEC_DONT_CHECK_CONTROL.
(init_dependency_caches, free_dependency_caches): Delete declarations.
(deps_analyze_insn, remove_from_deps, get_dep_weak_1,
estimate_dep_weak, ds_full_merge, ds_max_merge, ds_weak,
ds_get_speculation_types, ds_get_max_dep_weak, sched_deps_init,
sched_deps_finish, haifa_note_reg_set, haifa_note_reg_use,
haifa_note_reg_clobber, maybe_extend_reg_info_p, deps_start_bb,
ds_to_dt): Export.
(rm_other_notes): Delete declaration.
(schedule_block): Remove one argument.
(cycle_issued_insns, issue_rate, dfa_lookahead, ready_sort,
ready_element, ready_lastpos, sched_extend_ready_list,
sched_finish_ready_list, sched_change_pattern, sched_speculate_insn,
concat_note_lists): Export.
(struct region): Move from sched-rgn.h.
(nr_regions, rgn_table, rgn_bb_table, block_to_bb, containing_rgn,
RGN_NR_BLOCKS, RGN_BLOCKS, RGN_DONT_CALC_DEPS, RGN_HAS_REAL_EBB,
BLOCK_TO_BB, CONTAINING_RGN): Export.
(ebb_head, BB_TO_BLOCK, EBB_FIRST_BB, EBB_LAST_BB, INSN_BB): Likewise.
(current_nr_blocks, current_blocks, target_bb): Likewise.
(dep_cost_1, sched_is_disabled_for_current_region_p, sched_rgn_init,
sched_rgn_finish, rgn_setup_region, sched_rgn_compute_dependencies,
sched_rgn_local_init, extend_regions,
rgn_make_new_region_out_of_new_block, compute_priorities,
debug_rgn_dependencies, free_rgn_deps, contributes_to_priority,
extend_rgns, deps_join rgn_setup_common_sched_info,
rgn_setup_sched_infos, debug_regions, debug_region, dump_region_dot,
dump_region_dot_file, haifa_sched_init, haifa_sched_finish): Export.
(get_rgn_sched_max_insns_priority, sel_add_to_insn_priority,
increase_insn_priority): Likewise.
* sched-rgn.c: Include sel-sched.h.
(ref_counts): New static variable. Use it ...
(INSN_REF_COUNT): ... here. Rewrite and move closer to uses.
(FED_BY_SPEC_LOAD, IS_LOAD_INSN): Rewrite to use HID accessor macro.
(sched_is_disabled_for_current_region_p): Delete static declaration.
(struct region): Move to sched-int.h.
(nr_regions, rgn_table, rgn_bb_table, block_to_bb, containing_rgn,
ebb_head): Define and initialize.
(RGN_NR_BLOCKS, RGN_BLOCKS, RGN_DONT_CALC_DEPS, RGN_HAS_REAL_EBB,
BLOCK_TO_BB, CONTAINING_RGN, debug_regions, extend_regions,
BB_TO_BLOCK, EBB_FIRST_BB, EBB_LAST_BB): Move to
sched-int.h.
(find_single_block_region): Add new argument to indicate that EBB
regions should be constructed.
(debug_live): Delete declaration.
(current_nr_blocks, current_blocks, target_bb): Remove static qualifiers.
(compute_dom_prob_ps, check_live, update_live, set_spec_fed): Delete
declaration.
(init_regions): Delete declaration.
(debug_region, bb_in_region_p, dump_region_dot_file, dump_region_dot,
rgn_estimate_number_of_insns): New.
(too_large): Use estimate_number_of_insns.
(haifa_find_rgns): New. Move the code from ...
(find_rgns): ... here. Call either sel_find_rgns or haifa_find_rgns.
(free_trg_info): New.
(compute_trg_info): Allocate candidate tables here instead of ...
(init_ready_list): ... here.
(rgn_print_insn): Use const_rtx.
(contributes_to_priority, extend_regions): Delete static declaration.
(add_remove_insn, fix_recovery_cfg): Add rgn_ to function names.
(add_block1): Rename to rgn_add_block.
(debug_rgn_dependencies): Delete static qualifier.
(new_ready): Use sched_deps_info. Simplify.
(rgn_common_sched_info, rgn_const_sched_deps_info,
rgn_const_sel_sched_deps_info, rgn_sched_deps_info, rgn_sched_info): New.
(region_sched_info): Rename to rgn_const_sched_info.
(deps_join): New, extracted from ...
(propagate_deps): ... here.
(compute_block_dependences, debug_dependencies): Update for selective
scheduling.
(free_rgn_deps, compute_priorities): New functions.
(sched_rgn_init, sched_rgn_finish, rgn_setup_region,
sched_rgn_compute_dependencies): New functions.
(schedule_region): Use them.
(sched_rgn_local_init, sched_rgn_local_free, sched_rgn_local_finish,
rgn_setup_common_sched_info, rgn_setup_sched_infos):
New functions.
(schedule_insns): Call new functions that were split out.
(rgn_make_new_region_out_of_new_block): New.
(get_rgn_sched_max_insns_priority): New.
(rest_of_handle_sched, rest_of_handle_sched2): Call selective
scheduling when appropriate.
* sched-vis.c: Include insn-attr.h.
(print_value, print_pattern): Make global.
(print_rtl_slim, debug_bb_slim, debug_bb_n_slim): New functions.
* target-def.h (TARGET_SCHED_ADJUST_COST_2,
TARGET_SCHED_ALLOC_SCHED_CONTEXT, TARGET_SCHED_INIT_SCHED_CONTEXT,
TARGET_SCHED_SET_SCHED_CONTEXT, TARGET_SCHED_CLEAR_SCHED_CONTEXT,
TARGET_SCHED_FREE_SCHED_CONTEXT, TARGET_SCHED_GET_INSN_CHECKED_DS,
TARGET_SCHED_GET_INSN_SPEC_DS, TARGET_SCHED_SKIP_RTX_P): New target
hooks. Initialize them to 0.
(TARGET_SCHED_GEN_CHECK): Rename to TARGET_SCHED_GEN_SPEC_CHECK.
* target.h (struct gcc_target): Add them. Rename gen_check field to
gen_spec_check.
* flags.h (sel_sched_switch_set): Declare.
* opts.c (sel_sched_switch_set): New variable.
(decode_options): Unset flag_sel_sched_pipelining_outer_loops if
pipelining is disabled from command line.
(common_handle_option): Record whether selective scheduling is
requested from command line.
* doc/invoke.texi: Document new flags and parameters.
* doc/tm.texi: Document new target hooks.
* config/ia64/ia64.c (TARGET_SCHED_GEN_SPEC_CHECK): Define to ia64_gen_check.
(dfa_state_size): Do not declare locally.
* config/ia64/ia64.opt (msched-ar-data-spec): Default to 0.
* config/rs6000/rs6000.c (rs6000_init_sched_context,
rs6000_alloc_sched_context, rs6000_set_sched_context,
rs6000_free_sched_context): New functions.
(struct _rs6000_sched_context): New.
(rs6000_sched_reorder2): Do not modify INSN_PRIORITY for selective
scheduling.
(rs6000_sched_finish): Do not run for selective scheduling.
Co-Authored-By: Alexander Monakov <amonakov@ispras.ru>
Co-Authored-By: Dmitry Melnik <dm@ispras.ru>
Co-Authored-By: Dmitry Zhurikhin <zhur@ispras.ru>
Co-Authored-By: Maxim Kuvyrkov <maxim@codesourcery.com>
From-SVN: r139854
* haifa-sched.c (extend_global): Split to extend_global_data and
extend_region_data. Update all uses.
(extend_all): Rename to extend_block_data.
* gcc.target/ia64/20080802-1.c: New test.
From-SVN: r138758
PR middle-end/33670
* haifa-sched.c (ok_for_early_queue_removal): Don't walk out of the
current sched region.
* gcc.dg/pr33670.c: New test.
From-SVN: r129863
PR target/33133
* haifa-sched.c (process_insn_forw_deps_be_in_spec): Check if
speculation type of insn can be changed before trying to do that.
* gcc.c-torture/compile/pr33133.c: New test.
From-SVN: r129315
* target.h (struct gcc_target.sched: dfa_pre_advance_cycle,
dfa_post_advance_cycle): New scheduler hooks.
* target-def.h (TARGET_SCHED_DFA_PRE_ADVANCE_CYCLE,
TARGET_SCHED_DFA_POST_ADVANCE_CYCLE): New macros to initialize
new hooks.
(TARGET_SCHED): Use them.
* doc/tm.texi (TARGET_SCHED_DFA_PRE_ADVANCE_CYCLE,
TARGET_SCHED_DFA_POST_ADVANCE_CYCLE): Document new hooks.
* haifa-sched.c (advance_one_cycle): Invoke new hooks.
* genautomata.c (insn_has_dfa_reservation_p): New DFA interface
function to facilitate debugging.
(INSN_HAS_DFA_RESERVATION_P_FUNC_NAME): New macro.
(output_insn_has_dfa_reservation_p): New static function to output
insn_has_dfa_reservation_p ().
(write_automata): Use it.
* genattr.c (main): Output declaration for
insn_has_dfa_reservation_p ().
From-SVN: r127707
* sched-int.h (struct _dep): Rename field 'kind' to 'type'.
(DEP_KIND): Rename to DEP_TYPE. Update all uses.
(dep_def): New typedef.
(init_dep_1, sd_debug_dep): Declare functions.
(DEP_LINK_KIND): Rename to DEP_LINK_TYPE.
(debug_dep_links): Remove.
(struct _deps_list): New field 'n_links'.
(DEPS_LIST_N_LINKS): New macro.
(FOR_EACH_DEP_LINK): Remove.
(create_deps_list, free_deps_list, delete_deps_list): Remove
declaration.
(deps_list_empty_p, debug_deps_list, add_back_dep_to_deps_list): Ditto.
(find_link_by_pro_in_deps_list, find_link_by_con_in_deps_list): Ditto.
(copy_deps_list_change_con, move_dep_link): Ditto.
(struct haifa_insn_data): Split field 'back_deps' into 'hard_back_deps'
and 'spec_back_deps'. New field 'resolved_forw_deps'. Remove field
'dep_count'.
(INSN_BACK_DEPS): Remove.
(INSN_HARD_BACK_DEPS, INSN_SPEC_BACK_DEPS, INSN_RESOLVED_FORW_DEPS):
New macros.
(INSN_DEP_COUNT): Remove.
(enum DEPS_ADJUST_RESULT): Add new constant DEP_NODEP. Fix comments.
(spec_info, haifa_recovery_block_was_added_during_scheduling_p):
Declare global variables.
(deps_pools_are_empty_p, sched_free_deps): Declare functions.
(add_forw_dep, compute_forward_dependences): Remove declarations.
(add_or_update_back_dep, add_or_update_back_forw_dep): Ditto.
(add_back_forw_dep, delete_back_forw_dep): Ditto.
(debug_ds, sched_insn_is_legitimate_for_speculation_p): Declare
functions.
(SD_LIST_NONE, SD_LIST_HARD_BACK, SD_LIST_SPEC_BACK, SD_LIST_FORW): New
constants.
(SD_LIST_RES_BACK, SD_LIST_RES_FORW, SD_LIST_BACK): Ditto.
(sd_list_types_def): New typedef.
(sd_next_list): Declare function.
(struct _sd_iterator): New type.
(sd_iterator_def): New typedef.
(sd_iterator_start, sd_iterator_cond, sd_iterator_next): New inline
functions.
(FOR_EACH_DEP): New cycle wrapper.
(sd_lists_size, sd_lists_empty_p, sd_init_insn, sd_finish_insn):
Declare functions.
(sd_find_dep_between, sd_add_dep, sd_add_or_update_dep): Ditto.
(sd_resolve_dep, sd_copy_back_deps, sd_delete_dep, sd_debug_lists):
Ditto.
* sched-deps.c (init_dep_1): Make global.
(DUMP_DEP_PRO, DUMP_DEP_CON, DUMP_DEP_STATUS, DUMP_DEP_ALL): New
constants.
(dump_dep): New static function.
(dump_dep_flags): New static variable.
(sd_debug_dep): New function.
(add_to_deps_list, remove_from_deps_list): Update 'n_links' field of
the list.
(move_dep_link): Use remove_from_deps_list (), instead of
detach_dep_link ().
(dep_links_consistent_p, dump_dep_links, debug_dep_links): Remove.
(dep_link_is_detached_p): New static function.
(deps_obstack, dl_obstack, dn_obstack): Remove. Use dn_pool, dl_pool
instead.
(dn_pool, dl_pool): New alloc_pools.
(dn_pool_diff, dl_pool_diff): New static variables.
(create_dep_node, delete_dep_node): New static function.
(create_deps_list): Make it static. Use alloc_pool 'dl_pool'.
(deps_list_empty_p): Make it static. Use 'n_links' field.
(deps_pools_are_empty_p): New static function.
(alloc_deps_list, delete_deps_list): Remove.
(dump_deps_list, debug_deps_list, add_back_dep_to_deps_list): Remove.
(find_link_by_pro_in_deps_list, find_link_by_con_in_deps_list): Ditto.
(copy_deps_list_change_con): Remove. Use sd_copy_back_deps () instead.
(forward_dependency_cache): Remove.
(maybe_add_or_update_back_dep_1, add_or_update_back_dep_1): Remove
'back' from the names. Change signature to use dep_t instead of
equivalent quad.
(add_back_dep): Ditto. Make global.
(check_dep_status): Rename to check_dep ().
(sd_next_list, sd_lists_size, sd_lists_empty_p, sd_init_insn):
New functions.
(sd_finish_insn): Ditto.
(sd_find_dep_between_no_cache): New static function.
(sd_find_dep_between): New function.
(ask_dependency_caches, set_dependency_caches): New static functions.
(update_dependency_caches, change_spec_dep_to_hard, update_dep): Ditto.
(add_or_update_dep_1): Separate pieces of functionality into
ask_dependency_caches (), update_dependency_caches (),
change_spec_dep_to_hard (), update_dep ().
(get_back_and_forw_lists): New static function.
(sd_add_dep): Separate setting of dependency caches into
set_dependency_caches ().
(sd_add_or_update_dep, sd_resolve_dep, sd_copy_back_deps):
New functions.
(sd_delete_dep): Ditto.
(DUMP_LISTS_SIZE, DUMP_LISTS_DEPS, DUMP_LISTS_ALL): New constants.
(dump_lists): New static function.
(sd_debug_lists): New debug function.
(delete_all_dependences, fixup_sched_groups): Update to use
sd_* infrastructure.
(sched_analyze_2): Create data-speculative dependency only if
data-speculation is enabled.
(sched_analyze_insn): If insn cannot be speculative, make all its
dependencies non-speculative.
(sched_analyze): Use sd_init_insn ().
(add_forw_dep, compute_forward_dependencies): Remove.
(delete_dep_nodes_in_back_deps): New static function.
(sched_free_deps): New function.
(init_dependency_caches): Init alloc_pools.
(extend_depedency_caches): Update after removing of
forward_dependency_cache.
(free_dependency_caches): Ditto. Free alloc_pools.
(adjust_add_sorted_back_dep, adjust_back_add_forw_dep): Remove.
(delete_forw_dep, add_or_update_back_dep, add_or_update_back_forw_dep):
Ditto.
(add_back_forw_dep, delete_back_forw_dep): Ditto.
(add_dependence): Use init_dep ().
(get_dep_weak_1): New static function.
(get_dep_weak): Move logic to get_dep_weak_1 ().
(dump_ds): New static function moved from haifa-sched.c:
debug_spec_status ().
(debug_ds): New debug function.
(check_dep_status): Rename to check_dep (). Update to check whole
dependencies.
* haifa-sched.c (spec_info): Make global.
(added_recovery_block_p): Rename to
'haifa_recovery_block_was_added_during_current_schedule_block_p'.
(haifa_recovery_block_was_added_during_scheduling_p): New variable.
(dep_cost, priority, rank_for_schedule, schedule_insn): Update
to use new interfaces.
(ok_for_early_queue_removal): Ditto.
(schedule_block): Initialize logical uids of insns emitted by the
target.
(sched_init): Initialize new variable.
(fix_inter_tick, try_ready, fix_tick_ready): Update to use new
interfaces.
(extend_global): Initialize insn data.
(init_h_i_d): Remove code that is now handled in sd_init_insn ().
(process_insn_forw_deps_be_in_spec): Change signature. Update to use
new interfaces.
(add_to_speculative_block): Update to use new interfaces.
(create_recovery_block): Set new variables.
(create_check_block_twin, fix_recovery_deps): Update to use new
interfaces.
(sched_insn_is_legitimate_for_speculation_p): New function.
(speculate_insn): Move checking logic to
sched_insn_is_legitimate_for_speculation_p ().
(sched_remove_insn): Finalize sched-deps information of instruction.
(clear_priorities, add_jump_dependencies): Update to use new
interfaces.
(debug_spec_status): Rename to dump_ds () and move to sched-deps.c.
* sched-rgn.c (set_spec_fed, find_conditional_protection): Update
to use new interfaces.
(is_conditionally_protected, is_pfree, is_prisky) Ditto.
(new_ready): Try to use control speculation only if it is available.
(add_branch_dependences): Update to use new interfaces.
(compute_block_backward_dependences): Rename to
compute_block_dependences (). Call
targetm.sched.dependencies_evaluation_hook ().
(free_block_dependencies): New static function.
(debug_dependencies): Update to use new interfaces.
(schedule_region): Remove separate computation of forward dependencies.
Move call of targetm.sched.dependencies_evaluation_hook () to
compute_block_dependences (). Free dependencies at the end of
scheduling the region.
* sched-ebb.c (earliest_block_with_similiar_load): Update to use
new interfaces.
(add_deps_for_risky_insns): Ditto.
(schedule_ebb): Remove separate computation of forward dependencies.
Free dependencies at the end of scheduling the ebb.
* ddg.c (create_ddg_dependence): Update to use new interfaces.
(build_intra_loop_deps): Ditto. Remove separate computation of forward
dependencies. Free sched-deps dependencies.
* config/ia64/ia64.c (ia64_dependencies_evaluation_hook): Update
to use new interfaces.
(ia64_dfa_new_cycle, ia64_gen_check): Ditto.
* config/rs6000/rs6000.c (rs6000_is_costly_dependence): Update to use
new interfaces.
(is_costly_group): Ditto.
From-SVN: r127405
Jie Zhang
Nathan Froyd
Reza Yazdani
Jakub Jelinek
Manuel López-Ibáñez
Joern Rennecke
Alexandre Oliva
Jan Hubicka
Vladimir Makarov
Richard Henderson
H.J. Lu
Paolo Carlini
Alexandre Oliva
Ghassan Shobaki
Maxim Kuvyrkov
Ian Lance Taylor
Andrey Belevantsev
Adam Nemet
Trevor Smigiel
Kaveh R. Ghazi
Ralf Wildenhues
Alexander Monakov
Kazu Hirata
Nick Clifton