Hello,
I have applied the following patch (ack'ed by Andrey) to fix PR 82398.
The patch pasted in the Bugzilla also had a gcc_checking_assert for
VINSN_UNIQUE_P vs. SCHED_GROUP_P consistency verification earlier in that
comparator, but it's not directly related to the problem at hand, and Andrey
said he'd prefer to handle that differently.
Alexander
PR rtl-optimization/82398
* sel-sched.c (sel_rank_for_schedule): Fix check for zero
EXPR_USEFULNESS in priority comparison.
--- sel-sched.c (revision 255606)
+++ sel-sched.c (working copy)
@@ -3397,7 +3397,7 @@
return 1;
/* Prefer an expr with greater priority. */
- if (EXPR_USEFULNESS (tmp) != 0 && EXPR_USEFULNESS (tmp2) != 0)
+ if (EXPR_USEFULNESS (tmp) != 0 || EXPR_USEFULNESS (tmp2) != 0)
{
int p2 = EXPR_PRIORITY (tmp2) + EXPR_PRIORITY_ADJ (tmp2),
p1 = EXPR_PRIORITY (tmp) + EXPR_PRIORITY_ADJ (tmp);
