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

1 files changed, 75 insertions, 0 deletions

diff --git a/clang/test/CodeGenObjCXX/arc-move.mm b/clang/test/CodeGenObjCXX/arc-move.mm
new file mode 100644
index 0000000..cf3051d
--- /dev/null
+++ b/clang/test/CodeGenObjCXX/arc-move.mm
@@ -0,0 +1,75 @@
+// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -O2 -std=c++11 -disable-llvm-optzns -o - %s | FileCheck %s
+
+// define void @_Z11simple_moveRU8__strongP11objc_objectS2_
+void simple_move(__strong id &x, __strong id &y) {
+  // CHECK: = load i8**
+  // CHECK: store i8* null
+  // CHECK: = load i8**
+  // CHECK: store i8*
+  // CHECK-NEXT: call void @objc_release
+  x = static_cast<__strong id&&>(y);
+  // CHECK-NEXT: ret void
+}
+
+template<typename T>
+struct remove_reference {
+  typedef T type;
+};
+
+template<typename T>
+struct remove_reference<T&> {
+  typedef T type;
+};
+
+template<typename T>
+struct remove_reference<T&&> {
+  typedef T type;
+};
+
+template<typename T> 
+typename remove_reference<T>::type&& move(T &&x) { 
+  return static_cast<typename remove_reference<T>::type&&>(x); 
+}
+
+// CHECK: define void @_Z12library_moveRU8__strongP11objc_objectS2_
+void library_move(__strong id &x, __strong id &y) {
+  // CHECK: call i8** @_Z4moveIRU8__strongP11objc_objectEON16remove_referenceIT_E4typeEOS5_
+  // CHECK: load i8**
+  // CHECK: store i8* null, i8**
+  // CHECK: load i8***
+  // CHECK-NEXT: load i8**
+  // CHECK-NEXT: store i8*
+  // CHECK-NEXT: call void @objc_release
+  // CHECK-NEXT: ret void
+  x = move(y);
+}
+
+// CHECK: define void @_Z12library_moveRU8__strongP11objc_object
+void library_move(__strong id &y) {
+  // CHECK: [[Y:%[a-zA-Z0-9]+]] = call i8** @_Z4moveIRU8__strongP11objc_objectEON16remove_referenceIT_E4typeEOS5_
+  // Load the object
+  // CHECK-NEXT: [[OBJ:%[a-zA-Z0-9]+]] = load i8** [[Y]]
+  // Null out y
+  // CHECK-NEXT: store i8* null, i8** [[Y]]
+  // Initialize x with the object
+  // CHECK-NEXT: store i8* [[OBJ]], i8** [[X:%[a-zA-Z0-9]+]]
+  id x = move(y);
+
+  // CHECK-NEXT: store i32 17
+  int i = 17;
+  // CHECK-NEXT: [[OBJ:%[a-zA-Z0-9]+]] = load i8** [[X]]
+  // CHECK-NEXT: call void @objc_release(i8* [[OBJ]])
+  // CHECK-NEXT: ret void
+}
+
+// CHECK: define void @_Z10const_moveRKU8__strongP11objc_object(
+void const_move(const __strong id &x) {
+  // CHECK:      [[Y:%.*]] = alloca i8*,
+  // CHECK:      [[X:%.*]] = call i8** @_Z4moveIRKU8__strongP11objc_objectEON16remove_referenceIT_E4typeEOS5_(
+  // CHECK-NEXT: [[T0:%.*]] = load i8** [[X]]
+  // CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retain(i8* [[T0]])
+  // CHECK-NEXT: store i8* [[T1]], i8** [[Y]]
+  // CHECK-NEXT: [[T0:%.*]] = load i8** [[Y]]
+  // CHECK-NEXT: call void @objc_release(i8* [[T0]])
+  id y = move(x);
+}