--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/parse/defarg4.C	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,32 @@
+// { dg-do compile }
+
+// Copyright (C) 2003 Free Software Foundation, Inc.
+// Contributed by Nathan Sidwell 3 Jul 2003 <nathan@codesourcery.com>
+
+// PR c++ 9162. default args got left unprocessed
+
+struct S {
+  friend int foo (const S&, int = 100);
+};
+S s;
+int i = foo (s);
+
+struct R
+{
+  template <typename T> R (T, int = 0);
+};
+
+int Foo ()
+{
+  R s (1);
+}
+
+template <typename T> struct Q
+{
+  int Foo (T, int = 0);
+};
+
+int Foo (Q<int> *s)
+{
+  s->Foo (1);
+}