| // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -O2 -std=c++11 -disable-llvm-passes -o - %s | FileCheck %s |
| |
| // define void @_Z11simple_moveRU8__strongP11objc_objectS2_ |
| void simple_move(__strong id &x, __strong id &y) { |
| // CHECK: = load i8*, i8** |
| // CHECK: store i8* null |
| // CHECK: = load i8*, 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-LABEL: define void @_Z12library_moveRU8__strongP11objc_objectS2_ |
| void library_move(__strong id &x, __strong id &y) { |
| // CHECK: call dereferenceable({{[0-9]+}}) i8** @_Z4moveIRU8__strongP11objc_objectEON16remove_referenceIT_E4typeEOS5_ |
| // CHECK: load i8*, i8** |
| // CHECK: store i8* null, i8** |
| // CHECK: load i8**, i8*** |
| // CHECK-NEXT: load i8*, i8** |
| // CHECK-NEXT: store i8* |
| // CHECK-NEXT: call void @objc_release |
| // CHECK-NEXT: ret void |
| x = move(y); |
| } |
| |
| // CHECK-LABEL: define void @_Z12library_moveRU8__strongP11objc_object |
| void library_move(__strong id &y) { |
| // CHECK: [[X:%.*]] = alloca i8*, align 8 |
| // CHECK: [[I:%.*]] = alloca i32, align 4 |
| // CHECK: [[XPTR1:%.*]] = bitcast i8** [[X]] to i8* |
| // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XPTR1]]) |
| // CHECK: [[Y:%[a-zA-Z0-9]+]] = call dereferenceable({{[0-9]+}}) i8** @_Z4moveIRU8__strongP11objc_objectEON16remove_referenceIT_E4typeEOS5_ |
| // Load the object |
| // CHECK-NEXT: [[OBJ:%[a-zA-Z0-9]+]] = load i8*, 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: [[IPTR1:%.*]] = bitcast i32* [[I]] to i8* |
| // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 4, i8* [[IPTR1]]) |
| // CHECK-NEXT: store i32 17 |
| int i = 17; |
| // CHECK-NEXT: [[IPTR2:%.*]] = bitcast i32* [[I]] to i8* |
| // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 4, i8* [[IPTR2]]) |
| // CHECK-NEXT: [[OBJ:%[a-zA-Z0-9]+]] = load i8*, i8** [[X]] |
| // CHECK-NEXT: call void @objc_release(i8* [[OBJ]]) |
| // CHECK-NEXT: [[XPTR2:%.*]] = bitcast i8** [[X]] to i8* |
| // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[XPTR2]]) |
| // CHECK-NEXT: ret void |
| } |
| |
| // CHECK-LABEL: define void @_Z10const_moveRU8__strongKP11objc_object( |
| void const_move(const __strong id &x) { |
| // CHECK: [[Y:%.*]] = alloca i8*, |
| // CHECK: [[X:%.*]] = call dereferenceable({{[0-9]+}}) i8** @_Z4moveIRU8__strongKP11objc_objectEON16remove_referenceIT_E4typeEOS5_( |
| // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[X]] |
| // CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retain(i8* [[T0]]) |
| // CHECK-NEXT: store i8* [[T1]], i8** [[Y]] |
| // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[Y]] |
| // CHECK-NEXT: call void @objc_release(i8* [[T0]]) |
| id y = move(x); |
| } |
