arc-weak-property.m
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// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fobjc-runtime-has-weak -fblocks -fobjc-arc -o - %s | FileCheck %s
// rdar://8899430
@interface WeakPropertyTest {
__weak id PROP;
}
@property () __weak id PROP;
@end
@implementation WeakPropertyTest
@synthesize PROP;
@end
// CHECK: define internal i8* @"\01-[WeakPropertyTest PROP]"
// CHECK: [[SELF:%.*]] = alloca [[WPT:%.*]]*,
// CHECK-NEXT: [[CMD:%.*]] = alloca i8*,
// CHECK-NEXT: store [[WPT]]* {{%.*}}, [[WPT]]** [[SELF]]
// CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]]
// CHECK-NEXT: [[T0:%.*]] = load [[WPT]]*, [[WPT]]** [[SELF]]
// CHECK-NEXT: [[T1:%.*]] = load i64, i64* @"OBJC_IVAR_$_WeakPropertyTest.PROP"
// CHECK-NEXT: [[T2:%.*]] = bitcast [[WPT]]* [[T0]] to i8*
// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8, i8* [[T2]], i64 [[T1]]
// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8**
// CHECK-NEXT: [[T5:%.*]] = call i8* @llvm.objc.loadWeakRetained(i8** [[T4]])
// CHECK-NEXT: [[T6:%.*]] = tail call i8* @llvm.objc.autoreleaseReturnValue(i8* [[T5]])
// CHECK-NEXT: ret i8* [[T6]]
// CHECK: define internal void @"\01-[WeakPropertyTest setPROP:]"
// CHECK: [[SELF:%.*]] = alloca [[WPT:%.*]]*,
// CHECK-NEXT: [[CMD:%.*]] = alloca i8*,
// CHECK-NEXT: [[PROP:%.*]] = alloca i8*,
// CHECK-NEXT: store [[WPT]]* {{%.*}}, [[WPT]]** [[SELF]]
// CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]]
// CHECK-NEXT: store i8* {{%.*}}, i8** [[PROP]]
// CHECK-NEXT: [[V:%.*]] = load i8*, i8** [[PROP]]
// CHECK-NEXT: [[T0:%.*]] = load [[WPT]]*, [[WPT]]** [[SELF]]
// CHECK-NEXT: [[T1:%.*]] = load i64, i64* @"OBJC_IVAR_$_WeakPropertyTest.PROP"
// CHECK-NEXT: [[T2:%.*]] = bitcast [[WPT]]* [[T0]] to i8*
// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8, i8* [[T2]], i64 [[T1]]
// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8**
// CHECK-NEXT: call i8* @llvm.objc.storeWeak(i8** [[T4]], i8* [[V]])
// CHECK-NEXT: ret void
// CHECK: define internal void @"\01-[WeakPropertyTest .cxx_destruct]"
// CHECK: [[SELF:%.*]] = alloca [[WPT:%.*]]*,
// CHECK-NEXT: [[CMD:%.*]] = alloca i8*,
// CHECK-NEXT: store [[WPT]]* {{%.*}}, [[WPT]]** [[SELF]]
// CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]]
// CHECK-NEXT: [[T0:%.*]] = load [[WPT]]*, [[WPT]]** [[SELF]]
// CHECK-NEXT: [[T1:%.*]] = load i64, i64* @"OBJC_IVAR_$_WeakPropertyTest.PROP"
// CHECK-NEXT: [[T2:%.*]] = bitcast [[WPT]]* [[T0]] to i8*
// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8, i8* [[T2]], i64 [[T1]]
// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8**
// CHECK-NEXT: call void @llvm.objc.destroyWeak(i8** [[T4]])
// CHECK-NEXT: ret void