[testsuite] Require alloca in gcc.dg/pr83844.c

2018-02-07  Tom de Vries  <tom@codesourcery.com>

	* gcc.dg/pr83844.c: Require effective target alloca.

---
 gcc/testsuite/gcc.dg/pr83844.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gcc/testsuite/gcc.dg/pr83844.c b/gcc/testsuite/gcc.dg/pr83844.c
index fdbc191..0d26b55 100644
--- a/gcc/testsuite/gcc.dg/pr83844.c
+++ b/gcc/testsuite/gcc.dg/pr83844.c
@@ -1,6 +1,7 @@
 /* PR c/83844 */
 /* { dg-do compile { target int32plus } } */
 /* { dg-options "-O0 -Wall" } */
+/* { dg-require-effective-target alloca } */
 
 typedef unsigned long long __u64 __attribute__((aligned(4),warn_if_not_aligned(8)));
 void bar (void *, void *, void *);