78 lines
2.7 KiB
Objective-C
78 lines
2.7 KiB
Objective-C
// 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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// rdar://10849570
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@interface NSObject @end
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@interface SomeClass : NSObject
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- (id) init;
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@end
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@implementation SomeClass
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- (void)foo {
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}
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- (id) init {
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return 0;
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}
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+ alloc { return 0; }
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@end
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int main (int argc, const char * argv[]) {
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@autoreleasepool {
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SomeClass *objPtr1 = [[SomeClass alloc] init];
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__weak SomeClass *weakRef = objPtr1;
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[weakRef foo];
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objPtr1 = (void *)0;
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return 0;
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}
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}
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// CHECK: [[SIXTEEN:%.*]] = call i8* @objc_loadWeakRetained(i8** {{%.*}})
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// CHECK-NEXT: [[SEVENTEEN:%.*]] = bitcast i8* [[SIXTEEN]] to {{%.*}}
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// CHECK-NEXT: [[EIGHTEEN:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_6"
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// CHECK-NEXT: [[NINETEEN:%.*]] = bitcast %0* [[SEVENTEEN]] to i8*
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// CHECK-NEXT: call void bitcast (i8* (i8*, i8*, ...)* @objc_msgSend
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// CHECK-NEXT: [[TWENTY:%.*]] = bitcast %0* [[SEVENTEEN]] to i8*
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// CHECK-NEXT: call void @objc_release(i8* [[TWENTY]])
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void test1(int cond) {
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extern void test34_sink(id *);
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__weak id weak;
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test34_sink(cond ? &weak : 0);
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}
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// CHECK-LABEL: define void @test1(
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// CHECK: [[CONDADDR:%.*]] = alloca i32
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// CHECK-NEXT: [[WEAK:%.*]] = alloca i8*
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// CHECK-NEXT: [[INCRTEMP:%.*]] = alloca i8*
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// CHECK-NEXT: [[CONDCLEANUPSAVE:%.*]] = alloca i8*
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// CHECK-NEXT: [[CONDCLEANUP:%.*]] = alloca i1
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// CHECK-NEXT: store i32
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// CHECK-NEXT: store i8* null, i8** [[WEAK]]
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// CHECK: [[COND1:%.*]] = phi i8**
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// CHECK-NEXT: [[ICRISNULL:%.*]] = icmp eq i8** [[COND1]], null
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// CHECK-NEXT: [[ICRARGUMENT:%.*]] = select i1 [[ICRISNULL]], i8** null, i8** [[INCRTEMP]]
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// CHECK-NEXT: store i1 false, i1* [[CONDCLEANUP]]
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// CHECK-NEXT: br i1 [[ICRISNULL]], label [[ICRCONT:%.*]], label [[ICRCOPY:%.*]]
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// CHECK: [[ONE:%.*]] = call i8* @objc_loadWeakRetained(
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// CHECK-NEXT: store i8* [[ONE]], i8** [[CONDCLEANUPSAVE]]
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// CHECK-NEXT: store i1 true, i1* [[CONDCLEANUP]]
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// CHECK-NEXT: store i8* [[ONE]], i8** [[INCRTEMP]]
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// CHECK-NEXT: br label
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// CHECK: call void @test34_sink(
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// CHECK-NEXT: [[ICRISNULL1:%.*]] = icmp eq i8** [[COND1]], null
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// CHECK-NEXT: br i1 [[ICRISNULL1]], label [[ICRDONE:%.*]], label [[ICRWRITEBACK:%.*]]
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// CHECK: [[TWO:%.*]] = load i8** [[INCRTEMP]]
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// CHECK-NEXT: [[THREE:%.*]] = call i8* @objc_storeWeak(
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// CHECK-NEXT br label [[ICRDONE]]
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// CHECK: [[CLEANUPISACTIVE:%.*]] = load i1* [[CONDCLEANUP]]
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// CHECK-NEXT: br i1 [[CLEANUPISACTIVE]], label [[CLEASNUPACTION:%.*]], label [[CLEANUPDONE:%.*]]
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// CHECK: [[FOUR:%.*]] = load i8** [[CONDCLEANUPSAVE]]
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// CHECK-NEXT: call void @objc_release(i8* [[FOUR]])
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// CHECK-NEXT: br label
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// CHECK: call void @objc_destroyWeak(i8** [[WEAK]])
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// CHECK-NEXT: ret void
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