--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.old-deja/g++.pt/t28.C	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,10 @@
+// { dg-do assemble  }
+
+template <class X> class B;
+template <class X> int f (B<X> b) { return 37; }
+template <class Y> class B { public: Y y; B() { y = 1; } };
+
+int foo () {
+  B<double> bd;
+  return f(bd);
+}