27678b0961
in a category class method, don't read 'isa' pointer. Instead, save the desired OBJC_METACLASS_$_ClassName in __DATA,__objc_superrefs and read that without reading any isa pointers. // rdar://12459358 llvm-svn: 165674
30 lines
1009 B
Objective-C
30 lines
1009 B
Objective-C
// RUN: %clang_cc1 %s -emit-llvm -triple x86_64-apple-darwin -o - | FileCheck %s
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// rdar://12459358
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@interface NSObject
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-(id)copy;
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+(id)copy;
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@end
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@interface Sub1 : NSObject @end
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@implementation Sub1
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-(id)copy { return [super copy]; } // ok: instance method in class
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+(id)copy { return [super copy]; } // ok: class method in class
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@end
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@interface Sub2 : NSObject @end
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@interface Sub2 (Category) @end
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@implementation Sub2 (Category)
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-(id)copy { return [super copy]; } // ok: instance method in category
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+(id)copy { return [super copy]; } // BAD: class method in category
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@end
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// CHECK: define internal i8* @"\01+[Sub2(Category) copy]
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// CHECK: [[ONE:%.*]] = load %struct._class_t** @"\01L_OBJC_CLASSLIST_SUP_REFS_$_3"
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// CHECK: [[TWO:%.*]] = bitcast %struct._class_t* [[ONE]] to i8*
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// CHECK: [[THREE:%.*]] = getelementptr inbounds %struct._objc_super* [[OBJC_SUPER:%.*]], i32 0, i32 1
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// CHECK: store i8* [[TWO]], i8** [[THREE]]
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// CHECK: [[FOUR:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_"
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