From: Andrey Belevantsev <abel@ispras.ru>
To: GCC Patches <gcc-patches@gcc.gnu.org>
Cc: Jim Wilson <wilson@tuliptree.org>,
Vladimir Makarov <vmakarov@redhat.com>,
Ayal Zaks <ZAKS@il.ibm.com>
Subject: Re: Selective scheduling pass - target changes (ia64 & rs6000) [3/3]
Date: Fri, 22 Aug 2008 16:04:00 -0000 [thread overview]
Message-ID: <48AEDCA5.1080909@ispras.ru> (raw)
In-Reply-To: <484552F7.9040801@ispras.ru>
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Hello,
This is the updated patch which I resend with the other parts. I think
the only change is that the flag_selective_scheduling option is turned
on in ia64_optimization_options, not in ia64_override_options.
This is actually the last part of the selective scheduler patch that did
not get reviewed yet. Maybe a global write maintainer and a rs6000
maintainer could have a look?
Thanks, Andrey
2008-08-22 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>
* 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.
(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_scheduling is set, run the selective
scheduling pass instead of schedule_ebbs. Adjust for
flag_selective_scheduling2.
(ia64_optimization_options): Declare new parameter.
* 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.
(mstop-bit-before-check): Likewise.
(msched-max-memory-insns,
msched-max-memory-insns-hard-limit): Likewise.
(msched-spec-verbose, msched-prefer-non-data-spec-insns,
msched-prefer-non-control-spec-insns,
msched-count-spec-in-critical-path,
msel-sched-renaming, msel-sched-substitution,
msel-sched-data-spec,
msel-sched-control-spec, msel-sched-dont-check-control-spec):
Use Target
Report Var instead of Common Report Var.
* config/ia64/itanium2.md: Remove strange bypass.
* config/ia64/t-ia64 (ia64.o): Add dependency on sel-sched.h.
* 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.
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next prev parent reply other threads:[~2008-08-22 15:35 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-03 14:24 [RFC] Selective scheduling pass Andrey Belevantsev
2008-06-03 14:26 ` Selective scheduling pass - middle end changes [1/1] Andrey Belevantsev
2008-06-11 1:04 ` Ian Lance Taylor
2008-06-11 13:40 ` Andrey Belevantsev
2008-06-11 14:30 ` Ian Lance Taylor
2008-06-27 13:10 ` Andrey Belevantsev
2008-06-30 16:16 ` Ian Lance Taylor
2008-07-08 14:54 ` Andrey Belevantsev
2008-07-08 15:29 ` Ian Lance Taylor
2008-08-22 15:55 ` Andrey Belevantsev
2008-06-03 14:27 ` Selective scheduling pass - scheduler changes [2/3] Andrey Belevantsev
2008-06-03 22:03 ` Vladimir Makarov
2008-08-22 15:52 ` Andrey Belevantsev
2008-06-03 14:28 ` Selective scheduling pass - target changes (ia64 & rs6000) [3/3] Andrey Belevantsev
2008-08-22 16:04 ` Andrey Belevantsev [this message]
2008-08-29 13:41 ` [Ping] [GWP/ia64/rs6000 maintainer needed] " Andrey Belevantsev
2008-08-29 15:01 ` Mark Mitchell
2008-09-25 22:39 ` sje
2008-09-26 14:57 ` Andrey Belevantsev
2008-10-03 22:22 ` Steve Ellcey
2008-10-06 17:26 ` Andrey Belevantsev
2008-06-03 22:03 ` [RFC] Selective scheduling pass Vladimir Makarov
2008-06-04 16:55 ` Mark Mitchell
2008-06-04 20:50 ` Andrey Belevantsev
2008-06-05 3:45 ` Seongbae Park (박성배, 朴成培)
2008-06-05 13:49 ` Andrey Belevantsev
2008-08-29 15:10 Selective scheduling pass - target changes (ia64 & rs6000) [3/3] David Edelsohn
2008-08-31 13:35 ` Andrey Belevantsev
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