23 lines
		
	
	
		
			625 B
		
	
	
	
		
			Objective-C
		
	
	
	
			
		
		
	
	
			23 lines
		
	
	
		
			625 B
		
	
	
	
		
			Objective-C
		
	
	
	
| // RUN: %clang_cc1 -fblocks -fobjc-gc -triple x86_64-apple-darwin -fobjc-runtime=macosx-fragile-10.5 -emit-llvm %s -o - | \
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| // RUN: FileCheck %s
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| // RUN: %clang_cc1 -fblocks -fobjc-gc -triple i386-apple-darwin -fobjc-runtime=macosx-fragile-10.5 -emit-llvm %s -o - | \
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| // RUN: FileCheck %s
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| 
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| @interface NSObject 
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| - copy;
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| @end
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| 
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| int main() {
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|     NSObject *object = 0;
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|     __weak __block NSObject* weak_object = object;
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|     void (^callback) (void) = [^{
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|         if (weak_object)
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|                 [weak_object copy];
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|     } copy];
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|     callback();
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|     return 0;
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| }
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| 
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| // CHECK: call i8* @objc_read_weak
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| // CHECK: call i8* @objc_read_weak
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