From: Bin Cheng <bin.cheng@arm.com>
Date: Fri, 10 Nov 2017 12:46:33 +0000 (+0000)
Subject: tree-predcom.c (determine_roots_comp): Avoid memory leak by freeing reference of... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=df3c2945360a0c07579929f20b080ec5f903a0ad;p=gcc.git

tree-predcom.c (determine_roots_comp): Avoid memory leak by freeing reference of trivial component.

	* tree-predcom.c (determine_roots_comp): Avoid memory leak by freeing
	reference of trivial component.

From-SVN: r254625
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b82ce62fdff..1ed540a29e3 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2017-11-10  Bin Cheng  <bin.cheng@arm.com>
+
+	* tree-predcom.c (determine_roots_comp): Avoid memory leak by freeing
+	reference of trivial component.
+
 2017-11-10  Jakub Jelinek  <jakub@redhat.com>
 
 	PR bootstrap/82916
diff --git a/gcc/tree-predcom.c b/gcc/tree-predcom.c
index fdb32f10529..d078b96cdf0 100644
--- a/gcc/tree-predcom.c
+++ b/gcc/tree-predcom.c
@@ -1331,7 +1331,14 @@ determine_roots_comp (struct loop *loop,
 
   /* Trivial component.  */
   if (comp->refs.length () <= 1)
-    return;
+    {
+      if (comp->refs.length () == 1)
+	{
+	  free (comp->refs[0]);
+	  comp->refs.truncate (0);
+	}
+      return;
+    }
 
   comp->refs.qsort (order_drefs);
   FOR_EACH_VEC_ELT (comp->refs, i, a)