Add the clang library to the repo (with some of my changes, too).

1 files changed, 76 insertions, 0 deletions

diff --git a/clang/test/CodeGenCXX/cxx11-unrestricted-union.cpp b/clang/test/CodeGenCXX/cxx11-unrestricted-union.cpp
new file mode 100644
index 0000000..0397775
--- /dev/null
+++ b/clang/test/CodeGenCXX/cxx11-unrestricted-union.cpp
@@ -0,0 +1,76 @@
+// RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - | FileCheck %s
+
+struct A {
+  A(); A(const A&); A(A&&); A &operator=(const A&); A &operator=(A&&); ~A();
+};
+struct B {
+  B(); B(const B&); B(B&&); B &operator=(const B&); B &operator=(B&&); ~B();
+};
+
+union U {
+  U();
+  U(const U &);
+  U(U &&);
+  U &operator=(const U&);
+  U &operator=(U&&);
+  ~U();
+
+  A a;
+  int n;
+};
+
+// CHECK-NOT: _ZN1A
+U::U() {}
+U::U(const U&) {}
+U::U(U&&) {}
+U &U::operator=(const U&) { return *this; }
+U &U::operator=(U &&) { return *this; }
+U::~U() {}
+
+struct S {
+  S();
+  S(const S &);
+  S(S &&);
+  S &operator=(const S&);
+  S &operator=(S&&);
+  ~S();
+
+  union {
+    A a;
+    int n;
+  };
+  B b;
+  int m;
+};
+
+// CHECK: _ZN1SC2Ev
+// CHECK-NOT: _ZN1A
+// CHECK: _ZN1BC1Ev
+S::S() {}
+
+// CHECK-NOT: _ZN1A
+
+// CHECK: _ZN1SC2ERKS_
+// CHECK-NOT: _ZN1A
+// CHECK: _ZN1BC1Ev
+S::S(const S&) {}
+
+// CHECK-NOT: _ZN1A
+
+// CHECK: _ZN1SC2EOS_
+// CHECK-NOT: _ZN1A
+// CHECK: _ZN1BC1Ev
+S::S(S&&) {}
+
+// CHECK-NOT: _ZN1A
+// CHECK-NOT: _ZN1B
+S &S::operator=(const S&) { return *this; }
+
+S &S::operator=(S &&) { return *this; }
+
+// CHECK: _ZN1SD2Ev
+// CHECK-NOT: _ZN1A
+// CHECK: _ZN1BD1Ev
+S::~S() {}
+
+// CHECK-NOT: _ZN1A