From: Jakub Jelinek <jakub@redhat.com>
Date: Thu, 15 Sep 2016 12:27:35 +0000 (+0200)
Subject: re PR rtl-optimization/77425 (Pointer test follows dereference in sched-int.h)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=63c879fca4a3d82c0b8a5c5f42926419259f01ec;p=gcc.git

re PR rtl-optimization/77425 (Pointer test follows dereference in sched-int.h)

	PR rtl-optimization/77425
	* sched-int.h (sd_iterator_cond): Don't update it_ptr->linkp if list
	is NULL.

From-SVN: r240163
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 26a8f59fad3..d4ad3c9a9d2 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,9 @@
 2016-09-15  Jakub Jelinek  <jakub@redhat.com>
 
+	PR rtl-optimization/77425
+	* sched-int.h (sd_iterator_cond): Don't update it_ptr->linkp if list
+	is NULL.
+
 	PR middle-end/77475
 	* config/i386/i386.c (ix86_parse_stringop_strategy_string): Simplify,
 	use %qs instead of %s where desirable, use argument instead of arg in
diff --git a/gcc/sched-int.h b/gcc/sched-int.h
index de5d3269266..b4a7f925287 100644
--- a/gcc/sched-int.h
+++ b/gcc/sched-int.h
@@ -1624,10 +1624,11 @@ sd_iterator_cond (sd_iterator_def *it_ptr, dep_t *dep_ptr)
 	      sd_next_list (it_ptr->insn,
 			    &it_ptr->types, &list, &it_ptr->resolved_p);
 
-	      it_ptr->linkp = &DEPS_LIST_FIRST (list);
-
 	      if (list)
-		continue;
+		{
+		  it_ptr->linkp = &DEPS_LIST_FIRST (list);
+		  continue;
+		}
 	    }
 
 	  *dep_ptr = NULL;