42 lines · plain
1// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fobjc-arc -fobjc-runtime-has-weak -o - -std=c++11 %s | FileCheck %s2 3// CHECK: @[[CFSTRING:[a-z0-9_]+]] = private global %struct.__NSConstantString_tag4@class NSString;5 6// CHECK-LABEL: define{{.*}} void @_Z5test1v7// CHECK: %[[ALLOCA:[A-Z]+]] = alloca ptr8// CHECK: %[[V0:[0-9]+]] = call ptr @llvm.objc.retain(ptr @[[CFSTRING]]9// CHECK: store ptr %[[V0]], ptr %[[ALLOCA]]10// CHECK: call void @llvm.objc.storeStrong(ptr %[[ALLOCA]], ptr null)11void test1() {12 constexpr NSString *S = @"abc";13}14 15// CHECK-LABEL: define{{.*}} void @_Z5test2v16// CHECK: %[[CONST:[a-zA-Z]+]] = alloca ptr17// CHECK: %[[REF_CONST:[a-zA-Z]+]] = alloca ptr18// CHECK: %[[V0:[0-9]+]] = call ptr @llvm.objc.retain(ptr @[[CFSTRING]]19// CHECK-NEXT: store ptr %[[V0]], ptr %[[CONST]]20// CHECK: %[[V2:[0-9]+]] = call ptr @llvm.objc.retain(ptr @[[CFSTRING]]21// CHECK-NEXT: store ptr %[[V2]], ptr %[[REF_CONST]]22// CHECK-NEXT: call void @llvm.objc.storeStrong(ptr %[[REF_CONST]], ptr null)23// CHECK-NEXT: call void @llvm.objc.storeStrong(ptr %[[CONST]], ptr null)24void test2() {25 constexpr NSString *Const = @"abc";26 // In IR RefConst should be initialized with Const initializer instead of27 // reading from variable.28 NSString* RefConst = Const;29}30 31// CHECK-LABEL: define{{.*}} void @_Z5test3v32// CHECK: %[[WEAK_CONST:[a-zA-Z]+]] = alloca ptr33// CHECK: %[[REF_WEAK_CONST:[a-zA-Z]+]] = alloca ptr34// CHECK-NEXT: %[[V1:[0-9]+]] = call ptr @llvm.objc.initWeak(ptr %[[WEAK_CONST]], ptr @[[CFSTRING]]35// CHECK: store ptr @[[CFSTRING]], ptr %[[REF_WEAK_CONST]]36// CHECK-NEXT: call void @llvm.objc.storeStrong(ptr %[[REF_WEAK_CONST]], ptr null)37// CHECK-NEXT: call void @llvm.objc.destroyWeak(ptr %[[WEAK_CONST]])38void test3() {39 __weak constexpr NSString *WeakConst = @"abc";40 NSString* RefWeakConst = WeakConst;41}42