except.c (find_exception_handler_labels): Initialize label array with zeroes.

        * except.c (find_exception_handler_labels): Initialize label array
        with zeroes.

From-SVN: r13613

gcc/except.c

@@ -1231,8 +1231,9 @@ find_exception_handler_labels ()
   /* Generate a handy reference to each label.  */
 
   labels = (rtx *) alloca ((max_labelno - min_labelno) * sizeof (rtx));
+  bzero ((char *) labels, (max_labelno - min_labelno) * sizeof (rtx));
 
-  /* Eeeeeeew. */
+  /* Arrange for labels to be indexed directly by CODE_LABEL_NUMBER.  */
   labels -= min_labelno;
 
   for (insn = get_insns (); insn; insn = NEXT_INSN (insn))