Vendor import of clang trunk r126079:

http://llvm.org/svn/llvm-project/cfe/trunk@126079

1 files changed, 85 insertions, 0 deletions

diff --git a/test/CodeGenCXX/rvalue-references.cpp b/test/CodeGenCXX/rvalue-references.cpp
new file mode 100644
index 0000000..e151723
--- /dev/null
+++ b/test/CodeGenCXX/rvalue-references.cpp
@@ -0,0 +1,85 @@
+// RUN: %clang_cc1 -std=c++0x -triple x86_64-apple-darwin10 -emit-llvm -o - %s | FileCheck %s
+
+
+struct Spacer { int x; };
+struct A { double array[2]; };
+struct B : Spacer, A { };
+
+B &getB();
+
+// CHECK: define %struct.A* @_Z4getAv()
+// CHECK: call %struct.B* @_Z4getBv()
+// CHECK-NEXT: bitcast %struct.B*
+// CHECK-NEXT: getelementptr i8*
+// CHECK-NEXT: bitcast i8* {{.*}} to %struct.A*
+// CHECK-NEXT: ret %struct.A*
+A &&getA() { return static_cast<A&&>(getB()); }
+
+int &getIntLValue();
+int &&getIntXValue();
+int getIntPRValue();
+
+// CHECK: define i32* @_Z2f0v()
+// CHECK: call i32* @_Z12getIntLValuev()
+// CHECK-NEXT: ret i32*
+int &&f0() { return static_cast<int&&>(getIntLValue()); }
+
+// CHECK: define i32* @_Z2f1v()
+// CHECK: call i32* @_Z12getIntXValuev()
+// CHECK-NEXT: ret i32*
+int &&f1() { return static_cast<int&&>(getIntXValue()); }
+
+// CHECK: define i32* @_Z2f2v
+// CHECK: call i32 @_Z13getIntPRValuev()
+// CHECK-NEXT: store i32 {{.*}}, i32*
+// CHECK-NEXT: ret i32*
+int &&f2() { return static_cast<int&&>(getIntPRValue()); }
+
+bool ok;
+
+class C
+{
+   int* state_;
+
+   C(const C&) = delete;
+   C& operator=(const C&) = delete;
+public:
+  C(int state) : state_(new int(state)) { }
+  
+  C(C&& a) {
+    state_ = a.state_; 
+    a.state_ = 0;
+  }
+
+  ~C() {
+    delete state_; 
+    state_ = 0;
+  }
+};
+
+C test();
+
+// CHECK: define void @_Z15elide_copy_initv
+void elide_copy_init() {
+  ok = false;
+  // CHECK: call void @_Z4testv
+  C a = test();
+  // CHECK-NEXT: call void @_ZN1CD1Ev
+  // CHECK-NEXT: ret void
+}
+
+// CHECK: define void @_Z16test_move_returnv
+C test_move_return() {
+  // CHECK: call void @_ZN1CC1Ei
+  C a1(3);
+  // CHECK: call void @_ZN1CC1Ei
+  C a2(4);
+  if (ok)
+    // CHECK: call void @_ZN1CC1EOS_
+    return a1;
+  // CHECK: call void @_ZN1CC1EOS_
+  return a2;
+  // CHECK: call void @_ZN1CD1Ev
+  // CHECK: call void @_ZN1CD1Ev
+  //CHECK:  ret void
+}