diff --git a/test/CFrontend/2002-07-30-UnionTest.c b/test/CFrontend/2002-07-30-UnionTest.c
new file mode 100644
index 00000000000..ffb1d5b0430
--- /dev/null
+++ b/test/CFrontend/2002-07-30-UnionTest.c
@@ -0,0 +1,20 @@
+union X;
+struct Empty {};
+union F {};
+union Q { union Q *X; };
+union X {
+  char C;
+  int A, Z;
+  long long B; 
+  void *b1;
+  struct { int A; long long Z; } Q;
+};
+
+union X foo(union X A) {
+	A.C = 123;
+	A.A = 39249;
+	//A.B = (void*)123040123321;
+	A.B = 12301230123123LL;
+	A.Z = 1;
+	return A;
+}