| 1 | // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck -check-prefix=CHECK-UNOPT %s |
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| 2 | // rdar://12530881 |
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| 3 | |
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| 4 | void test19() { |
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| 5 | __block id x; |
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| 6 | ^{ (void)x; }; |
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| 7 | // CHECK-UNOPT-LABEL: define internal void @__Block_byref_object_copy |
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| 8 | // CHECK-UNOPT: [[X:%.*]] = getelementptr inbounds [[BYREF_T:%.*]], [[BYREF_T:%.*]]* [[VAR:%.*]], i32 0, i32 6 |
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| 9 | // CHECK-UNOPT: [[X2:%.*]] = getelementptr inbounds [[BYREF_T:%.*]], [[BYREF_T:%.*]]* [[VAR1:%.*]], i32 0, i32 6 |
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| 10 | // CHECK-UNOPT-NEXT: [[SIX:%.*]] = load i8*, i8** [[X2]], align 8 |
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| 11 | // CHECK-UNOPT-NEXT: store i8* null, i8** [[X]], align 8 |
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| 12 | // CHECK-UNOPT-NEXT: call void @llvm.objc.storeStrong(i8** [[X]], i8* [[SIX]]) [[NUW:#[0-9]+]] |
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| 13 | // CHECK-UNOPT-NEXT: call void @llvm.objc.storeStrong(i8** [[X2]], i8* null) [[NUW]] |
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| 14 | // CHECK-UNOPT-NEXT: ret void |
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| 15 | } |
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| 16 | |
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| 17 | // CHECK: attributes [[NUW]] = { nounwind } |
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| 18 | |
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