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// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fobjc-runtime=macosx-10.10 -emit-llvm -fblocks -fobjc-weak -o - %s | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-MODERN
// RUN: %clang_cc1 -triple i386-apple-darwin10 -fobjc-runtime=macosx-fragile-10.10 -emit-llvm -fblocks -fobjc-weak -o - %s | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-FRAGILE
@interface Object
- (instancetype) retain;
- (void) run;
@end
// CHECK-MODERN: @OBJC_CLASS_NAME_{{.*}} = {{.*}} c"\01\00"
// CHECK-MODERN: @"\01l_OBJC_CLASS_RO_$_Foo" = {{.*}} { i32 772
// 772 == 0x304
// ^ HasMRCWeakIvars
// ^ HasCXXDestructorOnly
// ^ HasCXXStructors
// CHECK-FRAGILE: @OBJC_CLASS_NAME_{{.*}} = {{.*}} c"\01\00"
// CHECK-FRAGILE: @OBJC_CLASS_Foo = {{.*}} i32 134225921,
// 134225921 == 0x08002001
// ^ HasMRCWeakIvars
// ^ HasCXXStructors
// ^ Factory
@interface Foo : Object {
__weak id ivar;
}
@end
@implementation Foo
// CHECK-LABEL: define internal void @"\01-[Foo .cxx_destruct]"
// CHECK: call void @objc_destroyWeak
@end
void test1(__weak id x) {}
// CHECK-LABEL: define void @test1
// CHECK: [[X:%.*]] = alloca i8*,
// CHECK-NEXT: objc_initWeak
// CHECK-NEXT: objc_destroyWeak
// CHECK-NEXT: ret void
void test2(id y) {
__weak id z = y;
}
// CHECK-LABEL: define void @test2
// CHECK: [[Y:%.*]] = alloca i8*,
// CHECK-NEXT: [[Z:%.*]] = alloca i8*,
// CHECK-NEXT: store
// CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[Y]]
// CHECK-NEXT: call i8* @objc_initWeak(i8** [[Z]], i8* [[T0]])
// CHECK-NEXT: call void @objc_destroyWeak(i8** [[Z]])
// CHECK-NEXT: ret void
void test3(id y) {
__weak id z;
z = y;
}
// CHECK-LABEL: define void @test3
// CHECK: [[Y:%.*]] = alloca i8*,
// CHECK-NEXT: [[Z:%.*]] = alloca i8*,
// CHECK-NEXT: store
// CHECK-NEXT: store i8* null, i8** [[Z]]
// CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[Y]]
// CHECK-NEXT: call i8* @objc_storeWeak(i8** [[Z]], i8* [[T0]])
// CHECK-NEXT: call void @objc_destroyWeak(i8** [[Z]])
// CHECK-NEXT: ret void
void test4(__weak id *p) {
id y = *p;
}
// CHECK-LABEL: define void @test4
// CHECK: [[P:%.*]] = alloca i8**,
// CHECK-NEXT: [[Y:%.*]] = alloca i8*,
// CHECK-NEXT: store
// CHECK-NEXT: [[T0:%.*]] = load i8**, i8*** [[P]]
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_loadWeak(i8** [[T0]])
// CHECK-NEXT: store i8* [[T1]], i8** [[Y]]
// CHECK-NEXT: ret void
void test5(__weak id *p) {
id y = [*p retain];
}
// CHECK-LABEL: define void @test5
// CHECK: [[P:%.*]] = alloca i8**,
// CHECK-NEXT: [[Y:%.*]] = alloca i8*,
// CHECK-NEXT: store
// CHECK-NEXT: [[T0:%.*]] = load i8**, i8*** [[P]]
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_loadWeakRetained(i8** [[T0]])
// CHECK-NEXT: store i8* [[T1]], i8** [[Y]]
// CHECK-NEXT: ret void
void test6(__weak Foo **p) {
Foo *y = [*p retain];
}
// CHECK-LABEL: define void @test6
// CHECK: [[P:%.*]] = alloca [[FOO:%.*]]**,
// CHECK-NEXT: [[Y:%.*]] = alloca [[FOO]]*,
// CHECK-NEXT: store
// CHECK-NEXT: [[T0:%.*]] = load [[FOO]]**, [[FOO]]*** [[P]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[FOO]]** [[T0]] to i8**
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_loadWeakRetained(i8** [[T1]])
// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[FOO]]*
// CHECK-NEXT: store [[FOO]]* [[T3]], [[FOO]]** [[Y]]
// CHECK-NEXT: ret void
extern id get_object(void);
extern void use_block(void (^)(void));
void test7(void) {
__weak Foo *p = get_object();
use_block(^{ [p run ]; });
}
// CHECK-LABEL: define void @test7
// CHECK: [[P:%.*]] = alloca [[FOO]]*,
// CHECK: [[T0:%.*]] = call i8* @get_object()
// CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[T0]] to [[FOO]]*
// CHECK-NEXT: [[T2:%.*]] = bitcast [[FOO]]** [[P]] to i8**
// CHECK-NEXT: [[T3:%.*]] = bitcast [[FOO]]* [[T1]] to i8*
// CHECK-NEXT: call i8* @objc_initWeak(i8** [[T2]], i8* [[T3]])
// CHECK: call void @objc_copyWeak
// CHECK: call void @use_block
// CHECK: call void @objc_destroyWeak
// CHECK-LABEL: define internal void @__copy_helper_block
// CHECK: @objc_copyWeak
// CHECK-LABEL: define internal void @__destroy_helper_block
// CHECK: @objc_destroyWeak
void test8(void) {
__block __weak Foo *p = get_object();
use_block(^{ [p run ]; });
}
// CHECK-LABEL: define void @test8
// CHECK: call i8* @objc_initWeak
// CHECK-NOT: call void @objc_copyWeak
// CHECK: call void @use_block
// CHECK: call void @objc_destroyWeak
// CHECK-LABEL: define internal void @__Block_byref_object_copy
// CHECK: call void @objc_moveWeak
// CHECK-LABEL: define internal void @__Block_byref_object_dispose
// CHECK: call void @objc_destroyWeak
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