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| author | John McCall <rjmccall@apple.com> | 2011-07-22 05:23:13 +0000 |
|---|---|---|
| committer | John McCall <rjmccall@apple.com> | 2011-07-22 05:23:13 +0000 |
| commit | 24fada127fdbc56a83af499ea05d44d2713913f6 (patch) | |
| tree | ecae3a6eabd16b2823a6aa0a5cea728d04da5921 /clang/test/CodeGenObjC/arc.m | |
| parent | 0410e572b9878c269530a60fe1d195f4e0903489 (diff) | |
| download | bcm5719-llvm-24fada127fdbc56a83af499ea05d44d2713913f6.tar.gz bcm5719-llvm-24fada127fdbc56a83af499ea05d44d2713913f6.zip | |
In ARC, non-atomic getters do not need to retain and autorelease
their loaded values, although it still worth doing this for __weak
properties to get the autoreleased-return-value optimization.
llvm-svn: 135747
Diffstat (limited to 'clang/test/CodeGenObjC/arc.m')
| -rw-r--r-- | clang/test/CodeGenObjC/arc.m | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/clang/test/CodeGenObjC/arc.m b/clang/test/CodeGenObjC/arc.m index f6bd4341959..8d74ab2a6a9 100644 --- a/clang/test/CodeGenObjC/arc.m +++ b/clang/test/CodeGenObjC/arc.m @@ -1578,3 +1578,41 @@ void test56_test(void) { // CHECK-NEXT: call void @objc_release(i8* [[T0]]) // CHECK-NEXT: ret void } + +// rdar://problem/9784964 +@interface Test57 +@property (nonatomic, strong) id strong; +@property (nonatomic, weak) id weak; +@property (nonatomic, unsafe_unretained) id unsafe; +@end +@implementation Test57 +@synthesize strong, weak, unsafe; +@end +// CHECK: define internal i8* @"\01-[Test57 strong]"( +// CHECK: [[T0:%.*]] = load [[TEST57:%.*]]** {{%.*}} +// CHECK-NEXT: [[T1:%.*]] = load i64* @"OBJC_IVAR_$_Test57.strong" +// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST57]]* [[T0]] to i8* +// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8* [[T2]], i64 [[T1]] +// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8** +// CHECK-NEXT: [[T5:%.*]] = load i8** [[T4]] +// CHECK-NEXT: ret i8* [[T5]] + +// CHECK: define internal i8* @"\01-[Test57 weak]"( +// CHECK: [[T0:%.*]] = load [[TEST57]]** {{%.*}} +// CHECK-NEXT: [[T1:%.*]] = load i64* @"OBJC_IVAR_$_Test57.weak" +// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST57]]* [[T0]] to i8* +// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8* [[T2]], i64 [[T1]] +// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8** +// CHECK-NEXT: [[T5:%.*]] = call i8* @objc_loadWeakRetained(i8** [[T4]]) +// CHECK-NEXT: [[T6:%.*]] = call i8* @objc_autoreleaseReturnValue(i8* [[T5]]) +// CHECK-NEXT: ret i8* [[T6]] + +// CHECK: define internal i8* @"\01-[Test57 unsafe]"( +// CHECK: [[T0:%.*]] = load [[TEST57]]** {{%.*}} +// CHECK-NEXT: [[T1:%.*]] = load i64* @"OBJC_IVAR_$_Test57.unsafe" +// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST57]]* [[T0]] to i8* +// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8* [[T2]], i64 [[T1]] +// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8** +// CHECK-NEXT: [[T5:%.*]] = load i8** [[T4]] +// CHECK-NEXT: ret i8* [[T5]] + |
