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
21 lines
726 B
Objective-C
21 lines
726 B
Objective-C
// RUN: %clang_cc1 -fobjc-arc -emit-llvm -triple x86_64-apple-darwin -o - %s | FileCheck %s
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@interface NSMutableArray
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- (id)objectAtIndexedSubscript:(int)index;
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- (void)setObject:(id)object atIndexedSubscript:(int)index;
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@end
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id func() {
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NSMutableArray *array;
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array[3] = 0;
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return array[3];
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}
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// CHECK: [[call:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend
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// CHECK: [[SIX:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[call]]) nounwind
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// CHECK: [[ARRAY_CASTED:%.*]] = bitcast %0** {{%.*}} to i8**
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// CHECK: call void @objc_storeStrong(i8** [[ARRAY_CASTED]], i8* null)
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// CHECK: [[EIGHT:%.*]] = tail call i8* @objc_autoreleaseReturnValue(i8* [[SIX]]) nounwind
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// CHECK: ret i8* [[EIGHT]]
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