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