| // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fobjc-arc -fobjc-runtime-has-weak -o - -std=c++11 %s | FileCheck %s |
| |
| // CHECK: @[[CFSTRING:[a-z0-9_]+]] = private global %struct.__NSConstantString_tag |
| @class NSString; |
| |
| // CHECK-LABEL: define{{.*}} void @_Z5test1v |
| // CHECK: %[[ALLOCA:[A-Z]+]] = alloca ptr |
| // CHECK: %[[V0:[0-9]+]] = call ptr @llvm.objc.retain(ptr @[[CFSTRING]] |
| // CHECK: store ptr %[[V0]], ptr %[[ALLOCA]] |
| // CHECK: call void @llvm.objc.storeStrong(ptr %[[ALLOCA]], ptr null) |
| void test1() { |
| constexpr NSString *S = @"abc"; |
| } |
| |
| // CHECK-LABEL: define{{.*}} void @_Z5test2v |
| // CHECK: %[[CONST:[a-zA-Z]+]] = alloca ptr |
| // CHECK: %[[REF_CONST:[a-zA-Z]+]] = alloca ptr |
| // CHECK: %[[V0:[0-9]+]] = call ptr @llvm.objc.retain(ptr @[[CFSTRING]] |
| // CHECK-NEXT: store ptr %[[V0]], ptr %[[CONST]] |
| // CHECK: %[[V2:[0-9]+]] = call ptr @llvm.objc.retain(ptr @[[CFSTRING]] |
| // CHECK-NEXT: store ptr %[[V2]], ptr %[[REF_CONST]] |
| // CHECK-NEXT: call void @llvm.objc.storeStrong(ptr %[[REF_CONST]], ptr null) |
| // CHECK-NEXT: call void @llvm.objc.storeStrong(ptr %[[CONST]], ptr null) |
| void test2() { |
| constexpr NSString *Const = @"abc"; |
| // In IR RefConst should be initialized with Const initializer instead of |
| // reading from variable. |
| NSString* RefConst = Const; |
| } |
| |
| // CHECK-LABEL: define{{.*}} void @_Z5test3v |
| // CHECK: %[[WEAK_CONST:[a-zA-Z]+]] = alloca ptr |
| // CHECK: %[[REF_WEAK_CONST:[a-zA-Z]+]] = alloca ptr |
| // CHECK-NEXT: %[[V1:[0-9]+]] = call ptr @llvm.objc.initWeak(ptr %[[WEAK_CONST]], ptr @[[CFSTRING]] |
| // CHECK: store ptr @[[CFSTRING]], ptr %[[REF_WEAK_CONST]] |
| // CHECK-NEXT: call void @llvm.objc.storeStrong(ptr %[[REF_WEAK_CONST]], ptr null) |
| // CHECK-NEXT: call void @llvm.objc.destroyWeak(ptr %[[WEAK_CONST]]) |
| void test3() { |
| __weak constexpr NSString *WeakConst = @"abc"; |
| NSString* RefWeakConst = WeakConst; |
| } |