Somehow, I missed to checkin this test when I fixed pr17635 (with

appropriate ChangeLog entry).

From-SVN: r90757

gcc/testsuite/gcc.dg/pr17635.c

+/* PR 17635 */
+/* Contributed by Devang Patel  <dpatel@apple.com>  */
+/* { dg-do compile } */
+/* { dg-options "-O2 -ftree-vectorize" } */
+
+void foo(int i)
+{
+  while (1)
+    if (i) ++i;
+}
+