final.c (update_alignments): Initialize label to NULL_RTX.

2013-11-12  Marek Polacek  <polacek@redhat.com>

	* final.c (update_alignments): Initialize label to NULL_RTX.

From-SVN: r204712

gcc/ChangeLog

+2013-11-12  Marek Polacek  <polacek@redhat.com>
+
+	* final.c (update_alignments): Initialize label to NULL_RTX.
+
 2013-11-12  Jeff Law  <law@redhat.com>
 
 	* gimple-ssa-isolate-paths.c (check_loadstore): New function.

gcc/final.c

@@ -830,7 +830,7 @@ void
 update_alignments (vec<rtx> &label_pairs)
 {
   unsigned int i = 0;
-  rtx iter, label;
+  rtx iter, label = NULL_RTX;
 
   if (max_labelno != max_label_num ())
     grow_label_align ();