path: root/test/CodeGenObjC/arc.m

// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -O2 -disable-llvm-optzns -o - %s | FileCheck %s
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck -check-prefix=CHECK-GLOBALS %s

// rdar://13129783. Check both native/non-native arc platforms. Here we check
// that they treat nonlazybind differently.
// RUN: %clang_cc1 -fobjc-runtime=macosx-10.6.0 -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck -check-prefix=ARC-ALIEN %s
// RUN: %clang_cc1 -fobjc-runtime=macosx-10.7.0 -triple x86_64-apple-darwin11 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck -check-prefix=ARC-NATIVE %s

// ARC-ALIEN: declare extern_weak void @objc_storeStrong(i8**, i8*)
// ARC-ALIEN: declare extern_weak i8* @objc_retain(i8*)
// ARC-ALIEN: declare extern_weak i8* @objc_autoreleaseReturnValue(i8*)
// ARC-ALIEN: declare i8* @objc_msgSend(i8*, i8*, ...) [[NLB:#[0-9]+]]
// ARC-ALIEN: declare extern_weak void @objc_release(i8*)
// ARC-ALIEN: declare extern_weak i8* @objc_retainAutoreleasedReturnValue(i8*)
// ARC-ALIEN: declare extern_weak i8* @objc_initWeak(i8**, i8*)
// ARC-ALIEN: declare extern_weak i8* @objc_storeWeak(i8**, i8*)
// ARC-ALIEN: declare extern_weak i8* @objc_loadWeakRetained(i8**)
// ARC-ALIEN: declare extern_weak void @objc_destroyWeak(i8**)
// ARC-ALIEN: declare extern_weak i8* @objc_autorelease(i8*)
// ARC-ALIEN: declare extern_weak i8* @objc_retainAutorelease(i8*)

// ARC-NATIVE: declare void @objc_storeStrong(i8**, i8*)
// ARC-NATIVE: declare i8* @objc_retain(i8*) [[NLB:#[0-9]+]]
// ARC-NATIVE: declare i8* @objc_autoreleaseReturnValue(i8*)
// ARC-NATIVE: declare i8* @objc_msgSend(i8*, i8*, ...) [[NLB]]
// ARC-NATIVE: declare void @objc_release(i8*) [[NLB]]
// ARC-NATIVE: declare i8* @objc_retainAutoreleasedReturnValue(i8*)
// ARC-NATIVE: declare i8* @objc_initWeak(i8**, i8*)
// ARC-NATIVE: declare i8* @objc_storeWeak(i8**, i8*)
// ARC-NATIVE: declare i8* @objc_loadWeakRetained(i8**)
// ARC-NATIVE: declare void @objc_destroyWeak(i8**)
// ARC-NATIVE: declare i8* @objc_autorelease(i8*)
// ARC-NATIVE: declare i8* @objc_retainAutorelease(i8*)

// CHECK: define void @test0
void test0(id x) {
  // CHECK:      [[X:%.*]] = alloca i8*
  // CHECK-NEXT: [[PARM:%.*]] = call i8* @objc_retain(i8* {{.*}})
  // CHECK-NEXT: store i8* [[PARM]], i8** [[X]]
  // CHECK-NEXT: [[TMP:%.*]] = load i8** [[X]]
  // CHECK-NEXT: call void @objc_release(i8* [[TMP]])
  // CHECK-NEXT: ret void
}

// CHECK: define i8* @test1(i8*
id test1(id x) {
  // CHECK:      [[X:%.*]] = alloca i8*
  // CHECK-NEXT: [[Y:%.*]] = alloca i8*
  // CHECK-NEXT: alloca i32
  // CHECK-NEXT: [[PARM:%.*]] = call i8* @objc_retain(i8* {{%.*}})
  // CHECK-NEXT: store i8* [[PARM]], i8** [[X]]
  // CHECK-NEXT: store i8* null, i8** [[Y]]
  // CHECK-NEXT: [[T0:%.*]] = load i8** [[Y]]
  // CHECK-NEXT: [[RET:%.*]] = call i8* @objc_retain(i8* [[T0]])
  // CHECK-NEXT: store i32
  // CHECK-NEXT: [[T0:%.*]] = load i8** [[Y]]
  // CHECK-NEXT: call void @objc_release(i8* [[T0]])
  // CHECK-NEXT: [[T1:%.*]] = load i8** [[X]]
  // CHECK-NEXT: call void @objc_release(i8* [[T1]])
  // CHECK-NEXT: [[T1:%.*]] = tail call i8* @objc_autoreleaseReturnValue(i8* [[RET]])
  // CHECK-NEXT: ret i8* [[T1]]
  id y;
  return y;
}

@interface Test2
+ (void) class_method;
- (void) inst_method;
@end
@implementation Test2

// The self pointer of a class method is not retained.
// CHECK: define internal void @"\01+[Test2 class_method]"
// CHECK:      alloca
// CHECK-NEXT: alloca
// CHECK-NEXT: store
// CHECK-NEXT: store
// CHECK-NEXT: ret void
+ (void) class_method {}

// The self pointer of an instance method is not retained.
// CHECK: define internal void @"\01-[Test2 inst_method]"
// CHECK:      alloca
// CHECK-NEXT: alloca
// CHECK-NEXT: store
// CHECK-NEXT: store
// CHECK-NEXT: ret void
- (void) inst_method {}
@end

@interface Test3
+ (id) alloc;
- (id