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| author | mkuvyrkov <mkuvyrkov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-01-17 01:06:43 +0000 |
|---|---|---|
| committer | mkuvyrkov <mkuvyrkov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-01-17 01:06:43 +0000 |
| commit | 34aaed439380226950d65f37c02a549dfdebb16c (patch) | |
| tree | b58630fa9c7bde3cf786f46d244c041a2357c3bd /gcc/params.def | |
| parent | b61d7819c8262a330e8feeb9a83b7c3c3e742c08 (diff) | |
| download | gcc-34aaed439380226950d65f37c02a549dfdebb16c.tar.gz | |
Model cache auto-prefetcher in scheduler
* config/arm/arm-protos.h (struct tune_params): New field
sched_autopref_queue_depth.
* config/arm/arm.c (sched-int.h): Include header.
(arm_first_cycle_multipass_dfa_lookahead_guard,)
(TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD): Define hook.
(arm_slowmul_tune, arm_fastmul_tune, arm_strongarm_tune,)
(arm_xscale_tune, arm_9e_tune, arm_v6t2_tune, arm_cortex_tune,)
(arm_cortex_a8_tune, arm_cortex_a7_tune, arm_cortex_a15_tune,)
(arm_cortex_a53_tune, arm_cortex_a57_tune, arm_xgene1_tune,)
(arm_cortex_a5_tune, arm_cortex_a9_tune, arm_cortex_a12_tune,)
(arm_v7m_tune, arm_cortex_m7_tune, arm_v6m_tune, arm_fa726te_tune):
Specify sched_autopref_queue_depth value. Enabled for A15 and A57.
* config/arm/t-arm (arm.o): Update.
* haifa-sched.c (update_insn_after_change): Update.
(rank_for_schedule): Use auto-prefetcher model, if requested.
(autopref_multipass_init): New static function.
(autopref_rank_for_schedule): New rank_for_schedule heuristic.
(autopref_multipass_dfa_lookahead_guard_started_dump_p): New static
variable for debug dumps.
(autopref_multipass_dfa_lookahead_guard_1): New static helper function.
(autopref_multipass_dfa_lookahead_guard): New global function that
implements TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD hook.
(init_h_i_d): Update.
* params.def (PARAM_SCHED_AUTOPREF_QUEUE_DEPTH): New tuning knob.
* sched-int.h (enum autopref_multipass_data_status): New const enum.
(autopref_multipass_data_): Structure for auto-prefetcher data.
(autopref_multipass_data_def, autopref_multipass_data_t): New typedefs.
(struct _haifa_insn_data:autopref_multipass_data): New field.
(INSN_AUTOPREF_MULTIPASS_DATA): New access macro.
(autopref_multipass_dfa_lookahead_guard): Declare.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@219789 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/params.def')
| -rw-r--r-- | gcc/params.def | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/params.def b/gcc/params.def index 3f69ce0c6a4..192c1e021c2 100644 --- a/gcc/params.def +++ b/gcc/params.def @@ -668,6 +668,11 @@ DEFPARAM (PARAM_SCHED_MEM_TRUE_DEP_COST, "Minimal distance between possibly conflicting store and load", 1, 0, 0) +DEFPARAM (PARAM_SCHED_AUTOPREF_QUEUE_DEPTH, + "sched-autopref-queue-depth", + "Hardware autoprefetcher scheduler model control flag. Number of lookahead cycles the model looks into; at '0' only enable instruction sorting heuristic. Disabled by default.", + -1, 0, 0) + DEFPARAM(PARAM_MAX_LAST_VALUE_RTL, "max-last-value-rtl", "The maximum number of RTL nodes that can be recorded as combiner's last value", |