--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/cpp0x/constexpr-generated1.C	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,21 @@
+// { dg-do compile { target c++11 } }
+
+template <class T> struct A
+{
+  constexpr T f ();
+};
+
+int g();
+
+// We should complain about this.
+template<> constexpr int A<int>::f()
+{ return g(); }			// { dg-error "non-constexpr" }
+
+// But not about this.
+struct B
+{
+  int i;
+  constexpr B(int i = g()):i(i) { }
+};
+struct C: B { };
+C c;