192 lines
6.5 KiB
Objective-C
192 lines
6.5 KiB
Objective-C
// 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
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// 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
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@interface Object
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- (instancetype) retain;
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- (void) run;
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@end
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// The ivars in HighlyAlignedSubclass should be placed in the tail-padding
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// of the superclass. Ensure that they're still covered by layouts.
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@interface HighlyAligned : Object {
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__attribute__((aligned(32))) void *array[2];
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}
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@end
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// CHECK-MODERN: @"OBJC_IVAR_$_HighlyAlignedSubclass.ivar2" = global i64 24,
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// CHECK-MODERN: @"OBJC_IVAR_$_HighlyAlignedSubclass.ivar" = global i64 16,
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// CHECK-MODERN: @OBJC_CLASS_NAME_{{.*}} = {{.*}} c"\02\00"
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// CHECK-MODERN: @"_OBJC_CLASS_RO_$_HighlyAlignedSubclass" = {{.*}} {
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// CHECK-FRAGILE: @OBJC_INSTANCE_VARIABLES_HighlyAlignedSubclass = {{.*}}, i32 8 }, {{.*}}, i32 12 }]
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// CHECK-FRAGILE: @OBJC_CLASS_NAME_{{.*}} = {{.*}} c"\02\00"
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// CHECK-FRAGILE: @OBJC_CLASS_HighlyAlignedSubclass
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@interface HighlyAlignedSubclass : HighlyAligned {
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__weak id ivar;
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__weak id ivar2;
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}
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@end
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@implementation HighlyAlignedSubclass @end
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// CHECK-MODERN: @OBJC_CLASS_NAME_{{.*}} = {{.*}} c"\01\00"
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// CHECK-MODERN: @"_OBJC_CLASS_RO_$_Foo" = {{.*}} { i32 772
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// 772 == 0x304
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// ^ HasMRCWeakIvars
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// ^ HasCXXDestructorOnly
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// ^ HasCXXStructors
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// CHECK-FRAGILE: @OBJC_CLASS_NAME_{{.*}} = {{.*}} c"\01\00"
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// CHECK-FRAGILE: @OBJC_CLASS_Foo = {{.*}} i32 134225921,
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// 134225921 == 0x08002001
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// ^ HasMRCWeakIvars
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// ^ HasCXXStructors
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// ^ Factory
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@interface Foo : Object {
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__weak id ivar;
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}
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@end
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@implementation Foo
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// CHECK-LABEL: define internal void @"\01-[Foo .cxx_destruct]"
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// CHECK: call void @llvm.objc.destroyWeak
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@end
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void test1(__weak id x) {}
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// CHECK-LABEL: define void @test1
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// CHECK: [[X:%.*]] = alloca i8*,
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// CHECK-NEXT: @llvm.objc.initWeak
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// CHECK-NEXT: @llvm.objc.destroyWeak
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// CHECK-NEXT: ret void
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void test2(id y) {
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__weak id z = y;
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}
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// CHECK-LABEL: define void @test2
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// CHECK: [[Y:%.*]] = alloca i8*,
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// CHECK-NEXT: [[Z:%.*]] = alloca i8*,
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// CHECK-NEXT: store
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// CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[Y]]
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// CHECK-NEXT: call i8* @llvm.objc.initWeak(i8** [[Z]], i8* [[T0]])
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// CHECK-NEXT: call void @llvm.objc.destroyWeak(i8** [[Z]])
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// CHECK-NEXT: ret void
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void test3(id y) {
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__weak id z;
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z = y;
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}
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// CHECK-LABEL: define void @test3
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// CHECK: [[Y:%.*]] = alloca i8*,
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// CHECK-NEXT: [[Z:%.*]] = alloca i8*,
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// CHECK-NEXT: store
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// CHECK-NEXT: store i8* null, i8** [[Z]]
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// CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[Y]]
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// CHECK-NEXT: call i8* @llvm.objc.storeWeak(i8** [[Z]], i8* [[T0]])
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// CHECK-NEXT: call void @llvm.objc.destroyWeak(i8** [[Z]])
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// CHECK-NEXT: ret void
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void test4(__weak id *p) {
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id y = *p;
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}
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// CHECK-LABEL: define void @test4
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// CHECK: [[P:%.*]] = alloca i8**,
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// CHECK-NEXT: [[Y:%.*]] = alloca i8*,
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// CHECK-NEXT: store
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// CHECK-NEXT: [[T0:%.*]] = load i8**, i8*** [[P]]
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// CHECK-NEXT: [[T1:%.*]] = call i8* @llvm.objc.loadWeak(i8** [[T0]])
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// CHECK-NEXT: store i8* [[T1]], i8** [[Y]]
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// CHECK-NEXT: ret void
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void test5(__weak id *p) {
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id y = [*p retain];
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}
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// CHECK-LABEL: define void @test5
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// CHECK: [[P:%.*]] = alloca i8**,
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// CHECK-NEXT: [[Y:%.*]] = alloca i8*,
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// CHECK-NEXT: store
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// CHECK-NEXT: [[T0:%.*]] = load i8**, i8*** [[P]]
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// CHECK-NEXT: [[T1:%.*]] = call i8* @llvm.objc.loadWeakRetained(i8** [[T0]])
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// CHECK-NEXT: store i8* [[T1]], i8** [[Y]]
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// CHECK-NEXT: ret void
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void test6(__weak Foo **p) {
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Foo *y = [*p retain];
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}
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// CHECK-LABEL: define void @test6
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// CHECK: [[P:%.*]] = alloca [[FOO:%.*]]**,
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// CHECK-NEXT: [[Y:%.*]] = alloca [[FOO]]*,
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// CHECK-NEXT: store
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// CHECK-NEXT: [[T0:%.*]] = load [[FOO]]**, [[FOO]]*** [[P]]
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// CHECK-NEXT: [[T1:%.*]] = bitcast [[FOO]]** [[T0]] to i8**
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// CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.loadWeakRetained(i8** [[T1]])
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// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[FOO]]*
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// CHECK-NEXT: store [[FOO]]* [[T3]], [[FOO]]** [[Y]]
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// CHECK-NEXT: ret void
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extern id get_object(void);
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extern void use_block(void (^)(void));
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void test7(void) {
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__weak Foo *p = get_object();
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use_block(^{ [p run ]; });
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}
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// CHECK-LABEL: define void @test7
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// CHECK: [[P:%.*]] = alloca [[FOO]]*,
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// CHECK: [[T0:%.*]] = call i8* @get_object()
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// CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[T0]] to [[FOO]]*
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// CHECK-NEXT: [[T2:%.*]] = bitcast [[FOO]]** [[P]] to i8**
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// CHECK-NEXT: [[T3:%.*]] = bitcast [[FOO]]* [[T1]] to i8*
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// CHECK-NEXT: call i8* @llvm.objc.initWeak(i8** [[T2]], i8* [[T3]])
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// CHECK: call void @llvm.objc.copyWeak
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// CHECK: call void @use_block
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// CHECK: call void @llvm.objc.destroyWeak
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// CHECK-LABEL: define linkonce_odr hidden void @__copy_helper_block
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// CHECK: @llvm.objc.copyWeak
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// CHECK-LABEL: define linkonce_odr hidden void @__destroy_helper_block
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// CHECK: @llvm.objc.destroyWeak
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void test8(void) {
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__block __weak Foo *p = get_object();
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use_block(^{ [p run ]; });
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}
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// CHECK-LABEL: define void @test8
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// CHECK: call i8* @llvm.objc.initWeak
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// CHECK-NOT: call void @llvm.objc.copyWeak
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// CHECK: call void @use_block
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// CHECK: call void @llvm.objc.destroyWeak
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// CHECK-LABEL: define internal void @__Block_byref_object_copy
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// CHECK: call void @llvm.objc.moveWeak
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// CHECK-LABEL: define internal void @__Block_byref_object_dispose
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// CHECK: call void @llvm.objc.destroyWeak
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// CHECK-LABEL: define void @test9_baseline()
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// CHECK: define linkonce_odr hidden void @__copy_helper
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// CHECK: define linkonce_odr hidden void @__destroy_helper
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void test9_baseline(void) {
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Foo *p = get_object();
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use_block(^{ [p run]; });
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}
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// CHECK-LABEL: define void @test9()
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// CHECK-NOT: define linkonce_odr hidden void @__copy_helper
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// CHECK-NOT: define linkonce_odr hidden void @__destroy_helper
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// CHECK: define void @test9_fin()
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void test9(void) {
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__unsafe_unretained Foo *p = get_object();
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use_block(^{ [p run]; });
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}
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void test9_fin() {}
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// CHECK-LABEL: define void @test10()
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// CHECK-NOT: define linkonce_odr hidden void @__copy_helper
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// CHECK-NOT: define linkonce_odr hidden void @__destroy_helper
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// CHECK: define void @test10_fin()
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void test10(void) {
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typedef __unsafe_unretained Foo *UnsafeFooPtr;
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UnsafeFooPtr p = get_object();
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use_block(^{ [p run]; });
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}
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void test10_fin() {}
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