--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/cpp0x/attrib55.C	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,21 @@
+// { dg-do compile { target c++11 } }
+
+inline namespace N __attribute__((__abi_tag__ ("foo"))) {}
+template <typename> struct A {};
+namespace N {
+template <typename> class B {};
+}
+template <typename T> class __attribute__((__unused__)) C {};
+template <typename> struct D {
+  template <typename _Up> using G = C<_Up>;
+};
+template <typename T> struct F {
+  template <typename U> struct H {
+    typedef typename D<T>::template G<U> I;
+  };
+};
+template <typename T, typename = C<T>> struct J {
+  C<A<const B<char>>> L;
+  typedef F<C<int>>::H<A<const B<char>>>::I M;
+  J<M> *a;
+};