--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/noncompile/pr30552-1.c	Thu Oct 25 07:37:49 2018 +0900
@@ -0,0 +1,17 @@
+/* PR c/30552 */
+
+/* Statement expression as formal array argument size in nested old-style 
+   function declaration should generate user error, not internal compiler 
+   error.  */
+
+/* { dg-do compile } */
+/* { dg-options "" } */
+
+int main()
+{
+  void fun(int a) /* { dg-error "old-style parameter declarations in prototyped function definition" } */
+    int a[({void h(){}2;})]; /* { dg-error "braced-group within expression allowed only inside a function" } */
+  {
+  }
+  return 0;
+}