--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/clang/test/SemaTemplate/instantiate-member-template.cpp	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,261 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+
+template<typename T>
+struct X0 {
+  template<typename U> T f0(U);
+  template<typename U> U& f1(T*, U); // expected-error{{pointer to a reference}} \
+                                     // expected-note{{candidate}}
+};
+
+X0<int> x0i;
+X0<void> x0v;
+X0<int&> x0ir; // expected-note{{instantiation}}
+
+void test_X0(int *ip, double *dp) {
+  X0<int> xi;
+  int i1 = xi.f0(ip);
+  double *&dpr = xi.f1(ip, dp);
+  xi.f1(dp, dp); // expected-error{{no matching}}
+
+  X0<void> xv;
+  double *&dpr2 = xv.f1(ip, dp);
+}
+
+template<typename T>
+struct X1 {
+  template<typename U>
+  struct Inner0 {
+    U x; 
+    T y; // expected-error{{void}}
+  };
+
+  template<typename U>
+  struct Inner1 {
+    U x; // expected-error{{void}}
+    T y;
+  };
+  
+  template<typename U>
+  struct Inner2 {
+    struct SuperInner {
+      U z; // expected-error{{void}}
+    };
+  };
+  
+  template<typename U>
+  struct Inner3 {
+    void f0(T t, U u) { // expected-note{{passing argument to parameter 't' here}}
+      (void)(t + u); // expected-error{{invalid operands}}
+    }
+    
+    template<typename V>
+    V f1(T t, U u, V) {
+      return t + u; // expected-error{{cannot initialize return object}}
+    }
+  };
+  
+  template<typename U>
+  struct Inner4;
+};
+
+template<typename T>
+template<typename U>
+struct X1<T>::Inner4 {
+  template<typename V>
+  V f2(T t, U u, V);
+  
+  static U value;
+};
+
+template<typename T>
+template<typename U>
+U X1<T>::Inner4<U>::value; // expected-error{{reference variable}}
+
+template<typename T>
+template<typename U>
+template<typename V>
+V X1<T>::Inner4<U>::f2(T t, U u, V) {
+  return t + u; // expected-error{{cannot initialize return object}}
+}
+
+void test_X1(int *ip, int i, double *dp) {
+  X1<void>::Inner0<int> *xvip; // okay
+  X1<void>::Inner0<int> xvi; // expected-note{{instantiation}}
+  
+  X1<int>::Inner1<void> *xivp; // okay
+  X1<int>::Inner1<void> xiv; // expected-note{{instantiation}}
+  
+  X1<int>::Inner2<void>::SuperInner *xisivp; // okay
+  X1<int>::Inner2<void>::SuperInner xisiv; // expected-note{{instantiation}}
+  
+  X1<int*>::Inner3<int> id3;
+  id3.f0(ip, i);
+  id3.f0(dp, i); // expected-error{{cannot initialize a parameter of type 'int *' with an lvalue of type 'double *'}}
+  id3.f1(ip, i, ip);
+  id3.f1(ip, i, dp); // expected-note{{instantiation}}
+  
+  X1<int*>::Inner3<double*> id3b;
+  id3b.f0(ip, dp); // expected-note{{instantiation}}
+  
+  X1<int*>::Inner4<int> id4;
+  id4.f2(ip, i, dp); // expected-note{{instantiation}}
+  
+  X1<int*>::Inner4<int>::value = 17;
+  i = X1<int*>::Inner4<int&>::value; // expected-note{{instantiation}}
+}
+
+
+template<typename T>
+struct X2 {
+  template<T *Ptr> // expected-error{{pointer to a reference}}
+  struct Inner;
+  
+  template<T Value> // expected-error{{cannot have type 'float'}}
+  struct Inner2;
+};
+
+X2<int&> x2a; // expected-note{{instantiation}}
+X2<float> x2b; // expected-note{{instantiation}}
+
+namespace N0 {
+  template<typename T>
+  struct X0 { };
+  
+  struct X1 {
+    template<typename T> void f(X0<T>& vals) { g(vals); }
+    template<typename T> void g(X0<T>& vals) { }
+  };
+  
+  void test(X1 x1, X0<int> x0i, X0<long> x0l) {
+    x1.f(x0i);
+    x1.f(x0l);
+  }  
+}
+
+namespace PR6239 {
+  template <typename T>  
+  struct X0 {  
+    class type {
+      typedef T E;    
+      template <E e>  // subsitute T for E and bug goes away
+      struct sfinae {  };  
+      
+      template <class U>  
+      typename sfinae<&U::operator=>::type test(int);  
+    };
+  };
+
+  template <typename T>  
+  struct X1 {  
+    typedef T E;    
+    template <E e>  // subsitute T for E and bug goes away
+    struct sfinae {  };  
+    
+    template <class U>  
+    typename sfinae<&U::operator=>::type test(int);  
+  };
+
+}
+
+namespace PR7587 {
+  template<typename> class X0;
+  template<typename> struct X1;
+  template<typename> class X2;
+
+  template<typename T> class X3
+  {
+    template<
+      template<typename> class TT,
+      typename U = typename X1<T>::type
+    > 
+    struct Inner {
+      typedef X2<TT<typename X1<T>::type> > Type;
+    };
+
+    const typename Inner<X0>::Type minCoeff() const;
+  };
+
+  template<typename T> class X3<T*>
+  {
+    template<
+      template<typename> class TT,
+      typename U = typename X1<T>::type
+    > 
+    struct Inner {
+      typedef X2<TT<typename X1<T>::type> > Type;
+    };
+
+    const typename Inner<X0>::Type minCoeff() const;
+  };
+
+}
+
+namespace PR7669 {
+  template<class> struct X {
+    template<class> struct Y {
+      template<int,class> struct Z;
+      template<int Dummy> struct Z<Dummy,int> {};
+    };
+  };
+
+  void a()
+  {
+    X<int>::Y<int>::Z<0,int>();
+  }
+}
+
+namespace PR8489 {
+  template <typename CT>
+  class C {
+    template<typename FT>
+    void F() {} // expected-note{{FT}}
+  };
+  void f() {
+    C<int> c;
+    c.F(); // expected-error{{no matching member function}}
+  }
+}
+
+namespace rdar8986308 {
+  template <bool> struct __static_assert_test;
+  template <> struct __static_assert_test<true> {};
+  template <unsigned> struct __static_assert_check {};
+
+  namespace std {
+
+    template <class _Tp, class _Up>
+    struct __has_rebind
+    {
+    private:
+      struct __two {char _; char __;};
+      template <class _Xp> static __two __test(...);
+      template <class _Xp> static char __test(typename _Xp::template rebind<_Up>* = 0);
+    public:
+      static const bool value = sizeof(__test<_Tp>(0)) == 1;
+    };
+
+  }
+
+  template <class T> struct B1 {};
+
+  template <class T>
+  struct B
+  {
+    template <class U> struct rebind {typedef B1<U> other;};
+  };
+
+  template <class T, class U> struct D1 {};
+
+  template <class T, class U>
+  struct D
+  {
+    template <class V> struct rebind {typedef D1<V, U> other;};
+  };
+
+  int main()
+  {
+    typedef __static_assert_check<sizeof(__static_assert_test<((std::__has_rebind<B<int>, double>::value))>)> __t64;
+    typedef __static_assert_check<sizeof(__static_assert_test<((std::__has_rebind<D<char, int>, double>::value))>)> __t64;
+  }
+
+}