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haifa-sched: fix autopref_rank_for_schedule qsort comparator

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* haifa-sched.c (autopref_rank_for_schedule): Order 'irrelevant' insns
	first, always call autopref_rank_data otherwise.

From-SVN: r253235
This commit is contained in:
Alexander Monakov 2017-09-27 20:16:53 +03:00 committed by Alexander Monakov
parent d4b7f2ee4b
commit ab90c27b67
2 changed files with 14 additions and 9 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2017-09-27 Alexander Monakov <amonakov@ispras.ru>
* haifa-sched.c (autopref_rank_for_schedule): Order 'irrelevant' insns
first, always call autopref_rank_data otherwise.
2017-09-27 Richard Biener <rguenther@suse.de>
* graphite-scop-detection.c (find_scop_parameters): Move

18
gcc/haifa-sched.c
View File

@ -5707,7 +5707,8 @@ autopref_rank_data (autopref_multipass_data_t data1,
static int
autopref_rank_for_schedule (const rtx_insn *insn1, const rtx_insn *insn2)
{
for (int write = 0; write < 2; ++write)
int r = 0;
for (int write = 0; write < 2 && !r; ++write)
{
autopref_multipass_data_t data1
= &INSN_AUTOPREF_MULTIPASS_DATA (insn1)[write];
@ -5716,21 +5717,20 @@ autopref_rank_for_schedule (const rtx_insn *insn1, const rtx_insn *insn2)
if (data1->status == AUTOPREF_MULTIPASS_DATA_UNINITIALIZED)
autopref_multipass_init (insn1, write);
if (data1->status == AUTOPREF_MULTIPASS_DATA_IRRELEVANT)
continue;
if (data2->status == AUTOPREF_MULTIPASS_DATA_UNINITIALIZED)
autopref_multipass_init (insn2, write);
if (data2->status == AUTOPREF_MULTIPASS_DATA_IRRELEVANT)
continue;
if (!rtx_equal_p (data1->base, data2->base))
continue;
int irrel1 = data1->status == AUTOPREF_MULTIPASS_DATA_IRRELEVANT;
int irrel2 = data2->status == AUTOPREF_MULTIPASS_DATA_IRRELEVANT;
return autopref_rank_data (data1, data2);
if (!irrel1 && !irrel2)
r = autopref_rank_data (data1, data2);
else
r = irrel2 - irrel1;
}
return 0;
return r;
}
/* True if header of debug dump was printed. */