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1// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck %s2 3@interface NSObject @end4 5@interface SomeClass : NSObject6- (id) init;7@end8 9@implementation SomeClass10- (void)foo {11}12- (id) init {13 return 0;14}15+ alloc { return 0; }16@end17 18int main (int argc, const char * argv[]) {19 @autoreleasepool {20 SomeClass *objPtr1 = [[SomeClass alloc] init];21 __weak SomeClass *weakRef = objPtr1;22 23 [weakRef foo];24 25 objPtr1 = (void *)0;26 return 0;27 }28}29 30// CHECK: [[SIXTEEN:%.*]] = call ptr @llvm.objc.loadWeakRetained(ptr {{%.*}})31// CHECK-NEXT: [[EIGHTEEN:%.*]] = load ptr, ptr @OBJC_SELECTOR_REFERENCES_.632// CHECK-NEXT: call void @objc_msgSend33// CHECK-NEXT: call void @llvm.objc.release(ptr [[SIXTEEN]])34 35void test1(int cond) {36 extern void test34_sink(id *);37 __weak id weak;38 test34_sink(cond ? &weak : 0);39}40 41// CHECK-LABEL: define{{.*}} void @test1(42// CHECK: [[CONDADDR:%.*]] = alloca i3243// CHECK-NEXT: [[WEAK:%.*]] = alloca ptr44// CHECK-NEXT: [[INCRTEMP:%.*]] = alloca ptr45// CHECK-NEXT: [[CONDCLEANUPSAVE:%.*]] = alloca ptr46// CHECK-NEXT: [[CONDCLEANUP:%.*]] = alloca i147// CHECK-NEXT: store i3248// CHECK-NEXT: store ptr null, ptr [[WEAK]]49// CHECK: [[COND1:%.*]] = phi ptr50// CHECK-NEXT: [[ICRISNULL:%.*]] = icmp eq ptr [[COND1]], null51// CHECK-NEXT: [[ICRARGUMENT:%.*]] = select i1 [[ICRISNULL]], ptr null, ptr [[INCRTEMP]]52// CHECK-NEXT: store i1 false, ptr [[CONDCLEANUP]]53// CHECK-NEXT: br i1 [[ICRISNULL]], label [[ICRCONT:%.*]], label [[ICRCOPY:%.*]]54// CHECK: [[ONE:%.*]] = call ptr @llvm.objc.loadWeakRetained(55// CHECK-NEXT: store ptr [[ONE]], ptr [[CONDCLEANUPSAVE]]56// CHECK-NEXT: store i1 true, ptr [[CONDCLEANUP]]57// CHECK-NEXT: store ptr [[ONE]], ptr [[INCRTEMP]]58// CHECK-NEXT: br label59 60// CHECK: call void @test34_sink(61// CHECK-NEXT: [[ICRISNULL1:%.*]] = icmp eq ptr [[COND1]], null62// CHECK-NEXT: br i1 [[ICRISNULL1]], label [[ICRDONE:%.*]], label [[ICRWRITEBACK:%.*]]63// CHECK: [[TWO:%.*]] = load ptr, ptr [[INCRTEMP]]64// CHECK-NEXT: [[THREE:%.*]] = call ptr @llvm.objc.storeWeak(65// CHECK-NEXT: br label [[ICRDONE]]66// CHECK: [[CLEANUPISACTIVE:%.*]] = load i1, ptr [[CONDCLEANUP]]67// CHECK-NEXT: br i1 [[CLEANUPISACTIVE]], label [[CLEASNUPACTION:%.*]], label [[CLEANUPDONE:%.*]]68 69// CHECK: [[FOUR:%.*]] = load ptr, ptr [[CONDCLEANUPSAVE]]70// CHECK-NEXT: call void @llvm.objc.release(ptr [[FOUR]])71// CHECK-NEXT: br label72// CHECK: call void @llvm.objc.destroyWeak(ptr [[WEAK]])73// CHECK-NEXT: ret void74