diff --git a/clang/test/CXX/class/class.init/class.copy.elision/p3.cpp b/clang/test/CXX/class/class.init/class.copy.elision/p3.cpp
--- a/clang/test/CXX/class/class.init/class.copy.elision/p3.cpp
+++ b/clang/test/CXX/class/class.init/class.copy.elision/p3.cpp
@@ -125,6 +125,17 @@
 } catch (...) {
   throw a; // expected-error {{call to deleted constructor of 'test_throw_parameter::A1'}}
 }
+
+#if __cplusplus >= 201103L
+void test4(A1 a) {
+  void f(decltype((throw a, 0)));
+  // expected-warning@-1 {{has no effect}}
+
+  void g(int = decltype(throw a, 0){});
+  // expected-warning@-1 {{has no effect}}
+}
+#endif
+
 } // namespace test_throw_parameter
 
 // During the first overload resolution, the selected function no