Check in LLVM r95781.
diff --git a/test/SemaCXX/constructor.cpp b/test/SemaCXX/constructor.cpp
new file mode 100644
index 0000000..9ef5c98
--- /dev/null
+++ b/test/SemaCXX/constructor.cpp
@@ -0,0 +1,86 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+typedef int INT;
+
+class Foo {
+ Foo();
+ (Foo)(float) { }
+ explicit Foo(int); // expected-note {{previous declaration is here}}
+ Foo(const Foo&);
+
+ ((Foo))(INT); // expected-error{{cannot be redeclared}}
+
+ Foo(Foo foo, int i = 17, int j = 42); // expected-error{{copy constructor must pass its first argument by reference}}
+
+ static Foo(short, short); // expected-error{{constructor cannot be declared 'static'}}
+ virtual Foo(double); // expected-error{{constructor cannot be declared 'virtual'}}
+ Foo(long) const; // expected-error{{'const' qualifier is not allowed on a constructor}}
+
+ int Foo(int, int); // expected-error{{constructor cannot have a return type}}
+};
+
+Foo::Foo(const Foo&) { }
+
+typedef struct {
+ int version;
+} Anon;
+extern const Anon anon;
+extern "C" const Anon anon2;
+
+// PR3188: The extern declaration complained about not having an appropriate
+// constructor.
+struct x;
+extern x a;
+
+// A similar case.
+struct y {
+ y(int);
+};
+extern y b;
+
+struct Length {
+ Length l() const { return *this; }
+};
+
+// <rdar://problem/6815988>
+struct mmst_reg{
+ char mmst_reg[10];
+};
+
+// PR3948
+namespace PR3948 {
+// PR3948
+class a {
+ public:
+ int b(int a());
+};
+int x();
+void y() {
+ a z; z.b(x);
+}
+}
+
+namespace A {
+ struct S {
+ S();
+ S(int);
+ void f1();
+ void f2();
+ operator int ();
+ ~S();
+ };
+}
+
+A::S::S() {}
+
+void A::S::f1() {}
+
+struct S {};
+
+A::S::S(int) {}
+
+void A::S::f2() {}
+
+A::S::operator int() { return 1; }
+
+A::S::~S() {}
+