--- /dev/null
+// PR c++/53009
+// { dg-do compile { target c++11 } }
+
+template<typename T, T> class function_proxy;
+
+template<typename Return, typename Obj, Return(*func)(Obj)>
+struct function_proxy<Return(*)(Obj), func>
+{
+ static void wrapper(){ }
+};
+
+template<typename CT, CT> class member_helper;
+
+template<typename Class, void(Class::*fun)()>
+struct member_helper<void(Class::*)(), fun>
+{
+ static void as_free(Class& obj){ }
+
+ static void worker(){
+ (void) function_proxy<decltype(&as_free), &as_free>::wrapper;
+ }
+};
+
+struct Test
+{
+ void test(){ }
+};
+
+int main()
+{
+ member_helper<decltype(&Test::test), &Test::test>::worker();
+}