--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/abi/empty23.C	Thu Oct 25 07:37:49 2018 +0900
@@ -0,0 +1,25 @@
+// PR c++/60336
+// { dg-do run }
+// { dg-options "-Wabi=11" }
+
+struct S
+{
+  struct { } a;
+  __extension__ int b[0];
+};
+
+struct S s;
+struct S a[5];
+
+void
+foo (struct S, struct S *arg1, struct S) // { dg-warning "ABI" "" { target { { i?86-*-* x86_64-*-* } && { ! { ia32 } } } } }
+{
+  if (arg1 != &a[1])
+    __builtin_abort ();
+}
+
+int
+main ()
+{
+  foo (s, &a[1], a[2]); // { dg-warning "ABI" "" { target { { i?86-*-* x86_64-*-* } && { ! { ia32 } } } } }
+}