81 lines
3 KiB
Text
81 lines
3 KiB
Text
// 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 ptr, ptr
|
|
// CHECK: store ptr null
|
|
// CHECK: = load ptr, ptr
|
|
// CHECK: store ptr
|
|
// CHECK-NEXT: call void @llvm.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 noundef nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) ptr @_Z4moveIRU8__strongP11objc_objectEON16remove_referenceIT_E4typeEOS5_
|
|
// CHECK: load ptr, ptr
|
|
// CHECK: store ptr null, ptr
|
|
// CHECK: load ptr, ptr
|
|
// CHECK-NEXT: load ptr, ptr
|
|
// CHECK-NEXT: store ptr
|
|
// CHECK-NEXT: call void @llvm.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:%x]] = alloca ptr, align 8
|
|
// CHECK: [[I:%.*]] = alloca i32, align 4
|
|
// CHECK: call void @llvm.lifetime.start.p0(i64 8, ptr [[X]])
|
|
// CHECK: [[Y:%[a-zA-Z0-9]+]] = call noundef nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) ptr @_Z4moveIRU8__strongP11objc_objectEON16remove_referenceIT_E4typeEOS5_
|
|
// Load the object
|
|
// CHECK-NEXT: [[OBJ:%[a-zA-Z0-9]+]] = load ptr, ptr [[Y]]
|
|
// Null out y
|
|
// CHECK-NEXT: store ptr null, ptr [[Y]]
|
|
// Initialize x with the object
|
|
// CHECK-NEXT: store ptr [[OBJ]], ptr [[X:%[a-zA-Z0-9]+]]
|
|
id x = move(y);
|
|
|
|
// CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 4, ptr [[I]])
|
|
// CHECK-NEXT: store i32 17
|
|
int i = 17;
|
|
// CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 4, ptr [[I]])
|
|
// CHECK-NEXT: [[OBJ:%[a-zA-Z0-9]+]] = load ptr, ptr [[X]]
|
|
// CHECK-NEXT: call void @llvm.objc.release(ptr [[OBJ]])
|
|
// CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 8, ptr [[X]])
|
|
// CHECK-NEXT: ret void
|
|
}
|
|
|
|
// CHECK-LABEL: define{{.*}} void @_Z10const_moveRU8__strongKP11objc_object(
|
|
void const_move(const __strong id &x) {
|
|
// CHECK: [[Y:%y]] = alloca ptr,
|
|
// CHECK: [[X:%.*]] = call noundef nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) ptr @_Z4moveIRU8__strongKP11objc_objectEON16remove_referenceIT_E4typeEOS5_(
|
|
// CHECK-NEXT: [[T0:%.*]] = load ptr, ptr [[X]]
|
|
// CHECK-NEXT: [[T1:%.*]] = call ptr @llvm.objc.retain(ptr [[T0]])
|
|
// CHECK-NEXT: store ptr [[T1]], ptr [[Y]]
|
|
// CHECK-NEXT: [[T0:%.*]] = load ptr, ptr [[Y]]
|
|
// CHECK-NEXT: call void @llvm.objc.release(ptr [[T0]])
|
|
id y = move(x);
|
|
}
|