1 files changed, 14 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/pr51034.c b/gcc-4.9/gcc/testsuite/gcc.dg/pr51034.c
new file mode 100644
index 000000000..c9b9c27c9
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/pr51034.c
@@ -0,0 +1,14 @@
+/* PR c/51034 */
+/* { dg-do compile } */
+/* { dg-options "-std=gnu99" } */
+
+struct S;
+
+int
+main ()
+{
+  struct R { typeof (((struct W) {})) x; } r;	/* { dg-error "invalid use of undefined type" } */
+  struct S { typeof (((struct S) {})) x; } s;	/* { dg-error "invalid use of undefined type" } */
+  struct T { int x[sizeof ((struct T) {})]; } t;/* { dg-error "invalid use of undefined type" } */
+  struct U { int x[sizeof((struct V){})];} u;	/* { dg-error "invalid use of undefined type" } */
+}