1// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck %s 2 3@interface NSObject @end 4 5@interface SomeClass : NSObject 6- (id) init; 7@end 8 9@implementation SomeClass 10- (void)foo { 11} 12- (id) init { 13 return 0; 14} 15+ alloc { return 0; } 16@end 17 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_.6 32// CHECK-NEXT: call void @objc_msgSend 33// 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 i32 43// CHECK-NEXT: [[WEAK:%.*]] = alloca ptr 44// CHECK-NEXT: [[INCRTEMP:%.*]] = alloca ptr 45// CHECK-NEXT: [[CONDCLEANUPSAVE:%.*]] = alloca ptr 46// CHECK-NEXT: [[CONDCLEANUP:%.*]] = alloca i1 47// CHECK-NEXT: store i32 48// CHECK-NEXT: store ptr null, ptr [[WEAK]] 49// CHECK: [[COND1:%.*]] = phi ptr 50// CHECK-NEXT: [[ICRISNULL:%.*]] = icmp eq ptr [[COND1]], null 51// 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 label 59 60// CHECK: call void @test34_sink( 61// CHECK-NEXT: [[ICRISNULL1:%.*]] = icmp eq ptr [[COND1]], null 62// 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 label 72// CHECK: call void @llvm.objc.destroyWeak(ptr [[WEAK]]) 73// CHECK-NEXT: ret void 74