diff --git a/test/Sema/constant-builtins-2.c b/test/Sema/constant-builtins-2.c
index 23aa314..68b46bf 100644
--- a/test/Sema/constant-builtins-2.c
+++ b/test/Sema/constant-builtins-2.c
@@ -50,3 +50,7 @@
 //int h2 = __builtin_expect(0, 0);
 extern long int bi0;
 extern __typeof__(__builtin_expect(0, 0)) bi0;
+
+// Strings
+int array1[__builtin_strlen("ab\0cd")];
+int array2[(sizeof(array1)/sizeof(int)) == 2? 1 : -1];