diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index fde6ecd8c3b..80e6ea33833 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2013-03-01  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/56461
+	* tree-vect-stmts.c (vect_create_vectorized_promotion_stmts): Call
+	vec_oprnds0->release (); rather than vec_oprnds0->truncate (0)
+	before overwriting it.
+
 2013-03-01  Tobias Burnus  <burnus@net-b.de>
 
 	* doc/extended.texi (C Extensions): Change order in @menu
diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c
index 7ba76cd5f2e..4004402b015 100644
--- a/gcc/tree-vect-stmts.c
+++ b/gcc/tree-vect-stmts.c
@@ -2269,7 +2269,7 @@ vect_create_vectorized_promotion_stmts (vec<tree> *vec_oprnds0,
       vec_tmp.quick_push (new_tmp2);
     }
 
-  vec_oprnds0->truncate (0);
+  vec_oprnds0->release ();
   *vec_oprnds0 = vec_tmp;
 }