--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/clang/test/SemaTemplate/fun-template-def.cpp	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,61 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+// RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s
+// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
+
+// Tests that dependent expressions are always allowed, whereas non-dependent
+// are checked as usual.
+
+#include <stddef.h>
+
+// Fake typeid, lacking a typeinfo header.
+namespace std { class type_info {}; }
+
+struct dummy {}; // expected-note 3 {{candidate constructor (the implicit copy constructor)}}
+#if __cplusplus >= 201103L // C++11 or later
+// expected-note@-2 3 {{candidate constructor (the implicit move constructor) not viable}}
+#endif
+
+template<typename T>
+int f0(T x) {
+  return (sizeof(x) == sizeof(int))? 0 : (sizeof(x) == sizeof(double))? 1 : 2;
+}
+
+template <typename T, typename U>
+T f1(T t1, U u1, int i1)
+{
+  T t2 = i1;
+  t2 = i1 + u1;
+  ++u1;
+  u1++;
+  int i2 = u1;
+
+  i1 = t1[u1];
+  i1 *= t1;
+
+  i1(u1, t1); // error
+  u1(i1, t1);
+
+  U u2 = (T)i1;
+  static_cast<void>(static_cast<U>(reinterpret_cast<T>(
+    dynamic_cast<U>(const_cast<T>(i1)))));
+
+  new U(i1, t1);
+  new int(t1, u1);
+  new (t1, u1) int;
+  delete t1;
+
+  dummy d1 = sizeof(t1); // expected-error {{no viable conversion}}
+  dummy d2 = offsetof(T, foo); // expected-error {{no viable conversion}}
+  dummy d3 = __alignof(u1); // expected-error {{no viable conversion}}
+  i1 = typeid(t1); // expected-error {{assigning to 'int' from incompatible type 'const std::type_info'}}
+
+  return u1;
+}
+
+template<typename T>
+void f2(__restrict T x) {} // expected-note {{substitution failure [with T = int]: restrict requires a pointer or reference ('int' is invalid}}
+
+void f3() {
+  f2<int*>(0);
+  f2<int>(0); // expected-error {{no matching function for call to 'f2'}}
+}