| Fariborz Jahanian | 82c458e | 2012-11-27 23:02:53 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck %s |
| 2 | // rdar://10849570 |
| 3 | |
| 4 | @interface NSObject @end |
| 5 | |
| 6 | @interface SomeClass : NSObject |
| 7 | - (id) init; |
| 8 | @end |
| 9 | |
| 10 | @implementation SomeClass |
| 11 | - (void)foo { |
| 12 | } |
| 13 | - (id) init { |
| 14 | return 0; |
| 15 | } |
| 16 | + alloc { return 0; } |
| 17 | @end |
| 18 | |
| 19 | int main (int argc, const char * argv[]) { |
| 20 | @autoreleasepool { |
| 21 | SomeClass *objPtr1 = [[SomeClass alloc] init]; |
| 22 | __weak SomeClass *weakRef = objPtr1; |
| 23 | |
| 24 | [weakRef foo]; |
| 25 | |
| 26 | objPtr1 = (void *)0; |
| 27 | return 0; |
| 28 | } |
| 29 | } |
| 30 | |
| 31 | // CHECK: [[SIXTEEN:%.*]] = call i8* @objc_loadWeakRetained(i8** {{%.*}}) |
| 32 | // CHECK-NEXT: [[SEVENTEEN:%.*]] = bitcast i8* [[SIXTEEN]] to {{%.*}} |
| 33 | // CHECK-NEXT: [[EIGHTEEN:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_6" |
| 34 | // CHECK-NEXT: [[NINETEEN:%.*]] = bitcast %0* [[SEVENTEEN]] to i8* |
| 35 | // CHECK-NEXT: call void bitcast (i8* (i8*, i8*, ...)* @objc_msgSend |
| 36 | // CHECK-NEXT: [[TWENTY:%.*]] = bitcast %0* [[SEVENTEEN]] to i8* |
| 37 | // CHECK-NEXT: call void @objc_release(i8* [[TWENTY]]) |
| 38 | |
| 39 | void test1(int cond) { |
| 40 | extern void test34_sink(id *); |
| 41 | __weak id weak; |
| 42 | test34_sink(cond ? &weak : 0); |
| 43 | } |
| 44 | |
| 45 | // CHECK: define void @test1( |
| 46 | // CHECK: [[CONDADDR:%.*]] = alloca i32 |
| 47 | // CHECK-NEXT: [[WEAK:%.*]] = alloca i8* |
| 48 | // CHECK-NEXT: [[INCRTEMP:%.*]] = alloca i8* |
| 49 | // CHECK-NEXT: [[CONDCLEANUPSAVE:%.*]] = alloca i8* |
| 50 | // CHECK-NEXT: [[CONDCLEANUP:%.*]] = alloca i1 |
| 51 | // CHECK-NEXT: store i32 |
| 52 | // CHECK-NEXT: store i8* null, i8** [[WEAK]] |
| 53 | // CHECK: [[COND1:%.*]] = phi i8** |
| 54 | // CHECK-NEXT: [[ICRISNULL:%.*]] = icmp eq i8** [[COND1]], null |
| 55 | // CHECK-NEXT: [[ICRARGUMENT:%.*]] = select i1 [[ICRISNULL]], i8** null, i8** [[INCRTEMP]] |
| 56 | // CHECK-NEXT: store i1 false, i1* [[CONDCLEANUP]] |
| 57 | // CHECK-NEXT: br i1 [[ICRISNULL]], label [[ICRCONT:%.*]], label [[ICRCOPY:%.*]] |
| 58 | // CHECK: [[ONE:%.*]] = call i8* @objc_loadWeakRetained( |
| 59 | // CHECK-NEXT: store i8* [[ONE]], i8** [[CONDCLEANUPSAVE]] |
| 60 | // CHECK-NEXT: store i1 true, i1* [[CONDCLEANUP]] |
| 61 | // CHECK-NEXT: store i8* [[ONE]], i8** [[INCRTEMP]] |
| 62 | // CHECK-NEXT: br label |
| 63 | |
| 64 | // CHECK: call void @test34_sink( |
| 65 | // CHECK-NEXT: [[ICRISNULL1:%.*]] = icmp eq i8** [[COND1]], null |
| 66 | // CHECK-NEXT: br i1 [[ICRISNULL1]], label [[ICRDONE:%.*]], label [[ICRWRITEBACK:%.*]] |
| 67 | // CHECK: [[TWO:%.*]] = load i8** [[INCRTEMP]] |
| 68 | // CHECK-NEXT: [[THREE:%.*]] = call i8* @objc_storeWeak( |
| 69 | // CHECK-NEXT br label [[ICRDONE]] |
| 70 | // CHECK: [[CLEANUPISACTIVE:%.*]] = load i1* [[CONDCLEANUP]] |
| 71 | // CHECK-NEXT: br i1 [[CLEANUPISACTIVE]], label [[CLEASNUPACTION:%.*]], label [[CLEANUPDONE:%.*]] |
| 72 | |
| 73 | // CHECK: [[FOUR:%.*]] = load i8** [[CONDCLEANUPSAVE]] |
| 74 | // CHECK-NEXT: call void @objc_release(i8* [[FOUR]]) |
| 75 | // CHECK-NEXT: br label |
| 76 | // CHECK: call void @objc_destroyWeak(i8** [[WEAK]]) |
| 77 | // CHECK-NEXT: ret void |