From: Alexander Monakov <amonakov@ispras.ru>
Date: Wed, 13 Dec 2017 16:30:29 +0000 (+0300)
Subject: sel-sched: fix sel_rank_for_schedule for qsort (PR 82398)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8041c629555ad2cbe8740d3a645332efcbd4e8d6;p=gcc.git

sel-sched: fix sel_rank_for_schedule for qsort (PR 82398)

	PR rtl-optimization/82398
	* sel-sched.c (sel_rank_for_schedule): Fix check for zero
	EXPR_USEFULNESS in priority comparison.

From-SVN: r255607
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5d992af7077..d32bd1b5c43 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2017-12-13  Alexander Monakov  <amonakov@ispras.ru>
+
+	PR rtl-optimization/82398
+	* sel-sched.c (sel_rank_for_schedule): Fix check for zero
+	EXPR_USEFULNESS in priority comparison.
+
 2017-12-13  Segher Boessenkool  <segher@kernel.crashing.org>
 
 	PR rtl-optimization/83393
diff --git a/gcc/sel-sched.c b/gcc/sel-sched.c
index 87a483a231e..b6a4b7be885 100644
--- a/gcc/sel-sched.c
+++ b/gcc/sel-sched.c
@@ -3397,7 +3397,7 @@ sel_rank_for_schedule (const void *x, const void *y)
     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);