| 1 | // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck %s |
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| 2 | // rdar://10849570 |
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| 3 | |
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| 4 | @interface NSObject @end |
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| 5 | |
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| 6 | @interface SomeClass : NSObject |
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| 7 | - (id) init; |
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| 8 | @end |
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| 9 | |
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| 10 | @implementation SomeClass |
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| 11 | - (void)foo { |
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| 12 | } |
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| 13 | - (id) init { |
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| 14 | return 0; |
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| 15 | } |
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| 16 | + alloc { return 0; } |
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| 17 | @end |
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| 18 | |
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| 19 | int main (int argc, const char * argv[]) { |
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| 20 | @autoreleasepool { |
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| 21 | SomeClass *objPtr1 = [[SomeClass alloc] init]; |
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| 22 | __weak SomeClass *weakRef = objPtr1; |
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| 23 | |
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| 24 | [weakRef foo]; |
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| 25 | |
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| 26 | objPtr1 = (void *)0; |
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| 27 | return 0; |
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| 28 | } |
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| 29 | } |
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| 30 | |
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| 31 | // CHECK: [[SIXTEEN:%.*]] = call i8* @llvm.objc.loadWeakRetained(i8** {{%.*}}) |
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| 32 | // CHECK-NEXT: [[SEVENTEEN:%.*]] = bitcast i8* [[SIXTEEN]] to {{%.*}} |
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| 33 | // CHECK-NEXT: [[EIGHTEEN:%.*]] = load i8*, i8** @OBJC_SELECTOR_REFERENCES_.6 |
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| 34 | // CHECK-NEXT: [[NINETEEN:%.*]] = bitcast %0* [[SEVENTEEN]] to i8* |
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| 35 | // CHECK-NEXT: call void bitcast (i8* (i8*, i8*, ...)* @objc_msgSend |
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| 36 | // CHECK-NEXT: [[TWENTY:%.*]] = bitcast %0* [[SEVENTEEN]] to i8* |
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| 37 | // CHECK-NEXT: call void @llvm.objc.release(i8* [[TWENTY]]) |
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| 38 | |
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| 39 | void test1(int cond) { |
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| 40 | extern void test34_sink(id *); |
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| 41 | __weak id weak; |
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| 42 | test34_sink(cond ? &weak : 0); |
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| 43 | } |
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| 44 | |
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| 45 | // CHECK-LABEL: define void @test1( |
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| 46 | // CHECK: [[CONDADDR:%.*]] = alloca i32 |
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| 47 | // CHECK-NEXT: [[WEAK:%.*]] = alloca i8* |
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| 48 | // CHECK-NEXT: [[INCRTEMP:%.*]] = alloca i8* |
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| 49 | // CHECK-NEXT: [[CONDCLEANUPSAVE:%.*]] = alloca i8* |
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| 50 | // CHECK-NEXT: [[CONDCLEANUP:%.*]] = alloca i1 |
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| 51 | // CHECK-NEXT: store i32 |
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| 52 | // CHECK-NEXT: store i8* null, i8** [[WEAK]] |
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| 53 | // CHECK: [[COND1:%.*]] = phi i8** |
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| 54 | // CHECK-NEXT: [[ICRISNULL:%.*]] = icmp eq i8** [[COND1]], null |
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| 55 | // CHECK-NEXT: [[ICRARGUMENT:%.*]] = select i1 [[ICRISNULL]], i8** null, i8** [[INCRTEMP]] |
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| 56 | // CHECK-NEXT: store i1 false, i1* [[CONDCLEANUP]] |
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| 57 | // CHECK-NEXT: br i1 [[ICRISNULL]], label [[ICRCONT:%.*]], label [[ICRCOPY:%.*]] |
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| 58 | // CHECK: [[ONE:%.*]] = call i8* @llvm.objc.loadWeakRetained( |
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| 59 | // CHECK-NEXT: store i8* [[ONE]], i8** [[CONDCLEANUPSAVE]] |
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| 60 | // CHECK-NEXT: store i1 true, i1* [[CONDCLEANUP]] |
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| 61 | // CHECK-NEXT: store i8* [[ONE]], i8** [[INCRTEMP]] |
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| 62 | // CHECK-NEXT: br label |
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| 63 | |
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| 64 | // CHECK: call void @test34_sink( |
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| 65 | // CHECK-NEXT: [[ICRISNULL1:%.*]] = icmp eq i8** [[COND1]], null |
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| 66 | // CHECK-NEXT: br i1 [[ICRISNULL1]], label [[ICRDONE:%.*]], label [[ICRWRITEBACK:%.*]] |
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| 67 | // CHECK: [[TWO:%.*]] = load i8*, i8** [[INCRTEMP]] |
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| 68 | // CHECK-NEXT: [[THREE:%.*]] = call i8* @llvm.objc.storeWeak( |
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| 69 | // CHECK-NEXT: br label [[ICRDONE]] |
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| 70 | // CHECK: [[CLEANUPISACTIVE:%.*]] = load i1, i1* [[CONDCLEANUP]] |
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| 71 | // CHECK-NEXT: br i1 [[CLEANUPISACTIVE]], label [[CLEASNUPACTION:%.*]], label [[CLEANUPDONE:%.*]] |
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| 72 | |
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| 73 | // CHECK: [[FOUR:%.*]] = load i8*, i8** [[CONDCLEANUPSAVE]] |
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| 74 | // CHECK-NEXT: call void @llvm.objc.release(i8* [[FOUR]]) |
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| 75 | // CHECK-NEXT: br label |
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| 76 | // CHECK: call void @llvm.objc.destroyWeak(i8** [[WEAK]]) |
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| 77 | // CHECK-NEXT: ret void |
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| 78 | |
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