1 files changed, 49 insertions, 0 deletions
diff --git a/test/CXX/special/class.ctor/p6-0x.cpp b/test/CXX/special/class.ctor/p6-0x.cpp
new file mode 100644
index 0000000000..19e324d8df
--- /dev/null
+++ b/test/CXX/special/class.ctor/p6-0x.cpp
@@ -0,0 +1,49 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s -std=c++11
+
+// Implicitly-defined default constructors are constexpr if the implicit
+// definition would be.
+struct NonConstexpr1 { // expected-note {{here}}
+  int a;
+};
+struct NonConstexpr2 { // expected-note {{here}}
+  NonConstexpr1 nl;
+};
+constexpr NonConstexpr1 nc1 = NonConstexpr1(); // expected-error {{constant expression}} expected-note {{non-constexpr constructor 'NonConstexpr1'}}
+constexpr NonConstexpr2 nc2 = NonConstexpr2(); // expected-error {{constant expression}} expected-note {{non-constexpr constructor 'NonConstexpr2'}}
+
+struct Constexpr1 {};
+constexpr Constexpr1 c1 = Constexpr1(); // ok
+struct NonConstexpr3 : virtual Constexpr1 {};
+constexpr NonConstexpr3 nc3 = NonConstexpr3(); // expected-error {{constant expression}} expected-note {{non-literal type 'const NonConstexpr3'}}
+
+struct Constexpr2 {
+  int a = 0;
+};
+constexpr Constexpr2 c2 = Constexpr2(); // ok
+
+int n;
+struct Member {
+  Member() : a(n) {}
+  constexpr Member(int&a) : a(a) {}
+  int &a;
+};
+struct NonConstexpr4 { // expected-note {{here}}
+  Member m;
+};
+constexpr NonConstexpr4 nc4 = NonConstexpr4(); // expected-error {{constant expression}} expected-note {{non-constexpr constructor 'NonConstexpr4'}}
+struct Constexpr3 {
+  constexpr Constexpr3() : m(n) {}
+  Member m;
+};
+constexpr Constexpr3 c3 = Constexpr3(); // ok
+struct Constexpr4 {
+  Constexpr3 m;
+};
+constexpr Constexpr4 c4 = Constexpr4(); // ok
+
+
+// This rule breaks some legal C++98 programs!
+struct A {}; // expected-note {{here}}
+struct B {
+  friend A::A(); // expected-error {{non-constexpr declaration of 'A' follows constexpr declaration}}
+};