--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/clang/test/Parser/using-template.cpp	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,52 @@
+// RUN: %clang_cc1 %s -verify
+
+namespace N1 {
+template <typename... Ts>
+struct Foo {
+  template <typename T>
+  struct Bar {
+    static constexpr bool is_present = false;
+  };
+};
+
+template <typename T, typename... Ts>
+struct Foo<T, Ts...> : public Foo<Ts...> {
+  using template Foo<Ts...>::Bar;
+  // expected-error@-1 {{'template' keyword not permitted after 'using' keyword}}
+};
+}
+
+namespace N2 {
+namespace foo {
+  using I = int;
+}
+using template namespace foo;
+// expected-error@-1 {{'template' keyword not permitted after 'using' keyword}}
+using template template namespace foo;
+// expected-error@-1 2{{'template' keyword not permitted after 'using' keyword}}
+I i;
+}
+
+namespace N3 {
+namespace foo {
+  using I = int;
+}
+using template foo::I;
+// expected-error@-1 {{'template' keyword not permitted after 'using' keyword}}
+I i;
+}
+
+namespace N4 {
+template <typename T>
+class A {};
+
+template <typename T>
+using B = A<T>;
+B<int> b;
+
+using template <typename T> C = A<T>;
+// expected-error@-1 {{'template' keyword not permitted after 'using' keyword}}
+// expected-error@-2 {{expected unqualified-id}}
+C<int> c;
+// expected-error@-1 {{no template named 'C'}}
+}