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ira-color: fix allocno_priority_compare_func for qsort (PR 82395)

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PR rtl-optimization/82395
	* ira-color.c (allocno_priority_compare_func): Fix comparison step
	based on non_spilled_static_chain_regno_p.

From-SVN: r253904
This commit is contained in:
Alexander Monakov 2017-10-19 19:48:34 +03:00 • committed by Alexander Monakov
parent 8fb0214b66
commit 158ec0181d
2 changed files with 10 additions and 5 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2017-10-19 Alexander Monakov <amonakov@ispras.ru>
PR rtl-optimization/82395
* ira-color.c (allocno_priority_compare_func): Fix comparison step
based on non_spilled_static_chain_regno_p.
2017-10-19 Uros Bizjak <ubizjak@gmail.com>
* config/i386/i386.c (output_387_binary_op): Rewrite SSE part.

9
gcc/ira-color.c
View file

@ -3005,14 +3005,13 @@ allocno_priority_compare_func (const void *v1p, const void *v2p)
{
ira_allocno_t a1 = *(const ira_allocno_t *) v1p;
ira_allocno_t a2 = *(const ira_allocno_t *) v2p;
int pri1, pri2;
int pri1, pri2, diff;
/* Assign hard reg to static chain pointer pseudo first when
non-local goto is used. */
if (non_spilled_static_chain_regno_p (ALLOCNO_REGNO (a1)))
return 1;
else if (non_spilled_static_chain_regno_p (ALLOCNO_REGNO (a2)))
return -1;
if ((diff = (non_spilled_static_chain_regno_p (ALLOCNO_REGNO (a2))
- non_spilled_static_chain_regno_p (ALLOCNO_REGNO (a1)))) != 0)
return diff;
pri1 = allocno_priorities[ALLOCNO_NUM (a1)];
pri2 = allocno_priorities[ALLOCNO_NUM (a2)];
if (pri2 != pri1)