Check in LLVM r95781.
diff --git a/test/SemaTemplate/copy-ctor-assign.cpp b/test/SemaTemplate/copy-ctor-assign.cpp
new file mode 100644
index 0000000..ae6dc9c
--- /dev/null
+++ b/test/SemaTemplate/copy-ctor-assign.cpp
@@ -0,0 +1,52 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+
+// Make sure that copy constructors and assignment operators are properly
+// generated when there is a matching
+
+// PR5072
+template<typename T>
+struct X {
+ template<typename U>
+ X(const X<U>& other)
+ : value(other.value + 1) { } // expected-error{{binary expression}}
+
+ template<typename U>
+ X& operator=(const X<U>& other) {
+ value = other.value + 1; // expected-error{{binary expression}}
+ return *this;
+ }
+
+ T value;
+};
+
+struct Y {};
+
+X<int Y::*> test0(X<int Y::*> x) { return x; }
+X<int> test1(X<long> x) { return x; }
+
+
+X<int> test2(X<int Y::*> x) {
+ return x; // expected-note{{instantiation}}
+}
+
+void test3(X<int> &x, X<int> xi, X<long> xl, X<int Y::*> xmptr) {
+ x = xi;
+ x = xl;
+ x = xmptr; // expected-note{{instantiation}}
+}
+
+struct X1 {
+ X1 &operator=(const X1&);
+};
+
+template<typename T>
+struct X2 : X1 {
+ template<typename U> X2 &operator=(const U&);
+};
+
+struct X3 : X2<int> {
+};
+
+void test_X2(X3 &to, X3 from) {
+ to = from;
+}