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Fix INSN_TICK heuristic for SCHED_PRESSURE 

* haifa-sched.c (rank_for_schedule): Fix INSN_TICK-based heuristics.

From-SVN: r213708
This commit is contained in:
Maxim Kuvyrkov 2014-08-07 11:16:16 +00:00 committed by Maxim Kuvyrkov
parent 81051ff669
commit 88366b18d6
2 changed files with 10 additions and 10 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2014-08-07 Maxim Kuvyrkov <maxim.kuvyrkov@linaro.org>
* haifa-sched.c (rank_for_schedule): Fix INSN_TICK-based heuristics.
2014-08-07 Ilya Tocar <ilya.tocar@intel.com>
* config/i386/sse.md (vec_extract_lo_<mode><mask_name>): Fix

16
gcc/haifa-sched.c
View File

@ -2584,14 +2584,11 @@ rank_for_schedule (const void *x, const void *y)
}
if (sched_pressure != SCHED_PRESSURE_NONE
&& (INSN_TICK (tmp2) > clock_var || INSN_TICK (tmp) > clock_var))
&& (INSN_TICK (tmp2) > clock_var || INSN_TICK (tmp) > clock_var)
&& INSN_TICK (tmp2) != INSN_TICK (tmp))
{
if (INSN_TICK (tmp) <= clock_var)
return -1;
else if (INSN_TICK (tmp2) <= clock_var)
return 1;
else
return INSN_TICK (tmp) - INSN_TICK (tmp2);
diff = INSN_TICK (tmp) - INSN_TICK (tmp2);
return diff;
}
/* If we are doing backtracking in this schedule, prefer insns that
@ -2676,10 +2673,9 @@ rank_for_schedule (const void *x, const void *y)
}
/* Prefer instructions that occur earlier in the model schedule. */
if (sched_pressure == SCHED_PRESSURE_MODEL)
if (sched_pressure == SCHED_PRESSURE_MODEL
&& INSN_BB (tmp) == target_bb && INSN_BB (tmp2) == target_bb)
{
int diff;
diff = model_index (tmp) - model_index (tmp2);
if (diff != 0)
return diff;