13799b323e
call sites as tail calls unconditionally. While it's theoretically true that this is just an optimization, it's an optimization that we very much want to happen even at -O0, or else ARC applications become substantially harder to debug. See r169796 for the llvm/fast-isel side of things. rdar://12553082 llvm-svn: 169996
56 lines
2.5 KiB
Objective-C
56 lines
2.5 KiB
Objective-C
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fobjc-runtime-has-weak -fblocks -fobjc-arc -o - %s | FileCheck %s
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// rdar://8899430
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@interface WeakPropertyTest {
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__weak id PROP;
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}
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@property () __weak id PROP;
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@end
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@implementation WeakPropertyTest
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@synthesize PROP;
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@end
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// CHECK: define internal i8* @"\01-[WeakPropertyTest PROP]"
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// CHECK: [[SELF:%.*]] = alloca [[WPT:%.*]]*,
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// CHECK-NEXT: [[CMD:%.*]] = alloca i8*,
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// CHECK-NEXT: store [[WPT]]* {{%.*}}, [[WPT]]** [[SELF]]
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// CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]]
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// CHECK-NEXT: [[T0:%.*]] = load [[WPT]]** [[SELF]]
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// CHECK-NEXT: [[T1:%.*]] = load i64* @"OBJC_IVAR_$_WeakPropertyTest.PROP"
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// CHECK-NEXT: [[T2:%.*]] = bitcast [[WPT]]* [[T0]] to i8*
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// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8* [[T2]], i64 [[T1]]
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// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8**
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// CHECK-NEXT: [[T5:%.*]] = call i8* @objc_loadWeakRetained(i8** [[T4]])
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// CHECK-NEXT: [[T6:%.*]] = tail call i8* @objc_autoreleaseReturnValue(i8* [[T5]])
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// CHECK-NEXT: ret i8* [[T6]]
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// CHECK: define internal void @"\01-[WeakPropertyTest setPROP:]"
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// CHECK: [[SELF:%.*]] = alloca [[WPT:%.*]]*,
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// CHECK-NEXT: [[CMD:%.*]] = alloca i8*,
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// CHECK-NEXT: [[PROP:%.*]] = alloca i8*,
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// CHECK-NEXT: store [[WPT]]* {{%.*}}, [[WPT]]** [[SELF]]
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// CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]]
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// CHECK-NEXT: store i8* {{%.*}}, i8** [[PROP]]
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// CHECK-NEXT: [[V:%.*]] = load i8** [[PROP]]
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// CHECK-NEXT: [[T0:%.*]] = load [[WPT]]** [[SELF]]
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// CHECK-NEXT: [[T1:%.*]] = load i64* @"OBJC_IVAR_$_WeakPropertyTest.PROP"
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// CHECK-NEXT: [[T2:%.*]] = bitcast [[WPT]]* [[T0]] to i8*
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// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8* [[T2]], i64 [[T1]]
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// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8**
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// CHECK-NEXT: call i8* @objc_storeWeak(i8** [[T4]], i8* [[V]])
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// CHECK-NEXT: ret void
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// CHECK: define internal void @"\01-[WeakPropertyTest .cxx_destruct]"
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// CHECK: [[SELF:%.*]] = alloca [[WPT:%.*]]*,
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// CHECK-NEXT: [[CMD:%.*]] = alloca i8*,
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// CHECK-NEXT: store [[WPT]]* {{%.*}}, [[WPT]]** [[SELF]]
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// CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]]
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// CHECK-NEXT: [[T0:%.*]] = load [[WPT]]** [[SELF]]
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// CHECK-NEXT: [[T1:%.*]] = load i64* @"OBJC_IVAR_$_WeakPropertyTest.PROP"
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// CHECK-NEXT: [[T2:%.*]] = bitcast [[WPT]]* [[T0]] to i8*
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// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8* [[T2]], i64 [[T1]]
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// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8**
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// CHECK-NEXT: call void @objc_destroyWeak(i8** [[T4]])
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// CHECK-NEXT: ret void
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