| // RUN: %clang_cc1 -triple arm64-apple-ios9 -fobjc-runtime=ios-9.0 -fobjc-arc -O -disable-llvm-passes -emit-llvm -o - %s | FileCheck %s -check-prefix=CHECK |
| // RUN: %clang_cc1 -triple x86_64-apple-macosx10 -fobjc-runtime=ios-9.0 -fobjc-arc -O -disable-llvm-passes -emit-llvm -o - %s | FileCheck %s -check-prefix=CHECK |
| |
| @class A; |
| |
| A *makeA(void); |
| |
| void test_assign(void) { |
| __unsafe_unretained id x; |
| x = makeA(); |
| } |
| // CHECK-LABEL: define{{.*}} void @test_assign() |
| // CHECK: [[X:%.*]] = alloca ptr |
| // CHECK: [[T0:%.*]] = call ptr @makeA() [ "clang.arc.attachedcall"(ptr @llvm.objc.unsafeClaimAutoreleasedReturnValue) ] |
| // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use({{.*}} [[T0]]) |
| // CHECK-NEXT: store ptr [[T0]], ptr [[X]] |
| // CHECK-NEXT: lifetime.end |
| // CHECK-NEXT: ret void |
| |
| void test_assign_assign(void) { |
| __unsafe_unretained id x, y; |
| x = y = makeA(); |
| } |
| // CHECK-LABEL: define{{.*}} void @test_assign_assign() |
| // CHECK: [[X:%.*]] = alloca ptr |
| // CHECK: [[Y:%.*]] = alloca ptr |
| // CHECK: [[T0:%.*]] = call ptr @makeA() [ "clang.arc.attachedcall"(ptr @llvm.objc.unsafeClaimAutoreleasedReturnValue) ] |
| // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use({{.*}} [[T0]]) |
| // CHECK-NEXT: store ptr [[T0]], ptr [[Y]] |
| // CHECK-NEXT: store ptr [[T0]], ptr [[X]] |
| // CHECK-NEXT: lifetime.end |
| // CHECK-NEXT: lifetime.end |
| // CHECK-NEXT: ret void |
| |
| void test_strong_assign_assign(void) { |
| __strong id x; |
| __unsafe_unretained id y; |
| x = y = makeA(); |
| } |
| // CHECK-LABEL: define{{.*}} void @test_strong_assign_assign() |
| // CHECK: [[X:%.*]] = alloca ptr |
| // CHECK: [[Y:%.*]] = alloca ptr |
| // CHECK: [[T0:%.*]] = call ptr @makeA() [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ] |
| // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use({{.*}} [[T0]]) |
| // CHECK-NEXT: store ptr [[T0]], ptr [[Y]] |
| // CHECK-NEXT: [[OLD:%.*]] = load ptr, ptr [[X]] |
| // CHECK-NEXT: store ptr [[T0]], ptr [[X]] |
| // CHECK-NEXT: call void @llvm.objc.release(ptr [[OLD]] |
| // CHECK-NEXT: lifetime.end |
| // CHECK-NEXT: [[T0:%.*]] = load ptr, ptr [[X]] |
| // CHECK-NEXT: call void @llvm.objc.release(ptr [[T0]]) |
| // CHECK-NEXT: lifetime.end |
| // CHECK-NEXT: ret void |
| |
| void test_assign_strong_assign(void) { |
| __unsafe_unretained id x; |
| __strong id y; |
| x = y = makeA(); |
| } |
| // CHECK-LABEL: define{{.*}} void @test_assign_strong_assign() |
| // CHECK: [[X:%.*]] = alloca ptr |
| // CHECK: [[Y:%.*]] = alloca ptr |
| // CHECK: [[T0:%.*]] = call ptr @makeA() [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ] |
| // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use({{.*}} [[T0]]) |
| // CHECK-NEXT: [[OLD:%.*]] = load ptr, ptr [[Y]] |
| // CHECK-NEXT: store ptr [[T0]], ptr [[Y]] |
| // CHECK-NEXT: call void @llvm.objc.release(ptr [[OLD]] |
| // CHECK-NEXT: store ptr [[T0]], ptr [[X]] |
| // CHECK-NEXT: [[T0:%.*]] = load ptr, ptr [[Y]] |
| // CHECK-NEXT: call void @llvm.objc.release(ptr [[T0]]) |
| // CHECK-NEXT: lifetime.end |
| // CHECK-NEXT: lifetime.end |
| // CHECK-NEXT: ret void |
| |
| void test_init(void) { |
| __unsafe_unretained id x = makeA(); |
| } |
| // CHECK-LABEL: define{{.*}} void @test_init() |
| // CHECK: [[X:%.*]] = alloca ptr |
| // CHECK: [[T0:%.*]] = call ptr @makeA() [ "clang.arc.attachedcall"(ptr @llvm.objc.unsafeClaimAutoreleasedReturnValue) ] |
| // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use({{.*}} [[T0]]) |
| // CHECK-NEXT: store ptr [[T0]], ptr [[X]] |
| // CHECK-NEXT: lifetime.end |
| // CHECK-NEXT: ret void |
| |
| void test_init_assignment(void) { |
| __unsafe_unretained id x; |
| __unsafe_unretained id y = x = makeA(); |
| } |
| // CHECK-LABEL: define{{.*}} void @test_init_assignment() |
| // CHECK: [[X:%.*]] = alloca ptr |
| // CHECK: [[Y:%.*]] = alloca ptr |
| // CHECK: [[T0:%.*]] = call ptr @makeA() [ "clang.arc.attachedcall"(ptr @llvm.objc.unsafeClaimAutoreleasedReturnValue) ] |
| // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use({{.*}} [[T0]]) |
| // CHECK-NEXT: store ptr [[T0]], ptr [[X]] |
| // CHECK-NEXT: store ptr [[T0]], ptr [[Y]] |
| // CHECK-NEXT: lifetime.end |
| // CHECK-NEXT: lifetime.end |
| // CHECK-NEXT: ret void |
| |
| void test_strong_init_assignment(void) { |
| __unsafe_unretained id x; |
| __strong id y = x = makeA(); |
| } |
| // CHECK-LABEL: define{{.*}} void @test_strong_init_assignment() |
| // CHECK: [[X:%.*]] = alloca ptr |
| // CHECK: [[Y:%.*]] = alloca ptr |
| // CHECK: [[T0:%.*]] = call ptr @makeA() [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ] |
| // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use({{.*}} [[T0]]) |
| // CHECK-NEXT: store ptr [[T0]], ptr [[X]] |
| // CHECK-NEXT: store ptr [[T0]], ptr [[Y]] |
| // CHECK-NEXT: [[T0:%.*]] = load ptr, ptr [[Y]] |
| // CHECK-NEXT: call void @llvm.objc.release(ptr [[T0]]) |
| // CHECK-NEXT: lifetime.end |
| // CHECK-NEXT: lifetime.end |
| // CHECK-NEXT: ret void |
| |
| void test_init_strong_assignment(void) { |
| __strong id x; |
| __unsafe_unretained id y = x = makeA(); |
| } |
| // CHECK-LABEL: define{{.*}} void @test_init_strong_assignment() |
| // CHECK: [[X:%.*]] = alloca ptr |
| // CHECK: [[Y:%.*]] = alloca ptr |
| // CHECK: [[T0:%.*]] = call ptr @makeA() [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ] |
| // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use({{.*}} [[T0]]) |
| // CHECK-NEXT: [[OLD:%.*]] = load ptr, ptr [[X]] |
| // CHECK-NEXT: store ptr [[T0]], ptr [[X]] |
| // CHECK-NEXT: call void @llvm.objc.release(ptr [[OLD]]) |
| // CHECK-NEXT: store ptr [[T0]], ptr [[Y]] |
| // CHECK-NEXT: lifetime.end |
| // CHECK-NEXT: [[T0:%.*]] = load ptr, ptr [[X]] |
| // CHECK-NEXT: call void @llvm.objc.release(ptr [[T0]]) |
| // CHECK-NEXT: lifetime.end |
| // CHECK-NEXT: ret void |
| |
| void test_ignored(void) { |
| makeA(); |
| } |
| // CHECK-LABEL: define{{.*}} void @test_ignored() |
| // CHECK: [[T0:%.*]] = call ptr @makeA() [ "clang.arc.attachedcall"(ptr @llvm.objc.unsafeClaimAutoreleasedReturnValue) ] |
| // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use({{.*}} [[T0]]) |
| // CHECK-NEXT: ret void |
| |
| void test_cast_to_void(void) { |
| (void) makeA(); |
| } |
| // CHECK-LABEL: define{{.*}} void @test_cast_to_void() |
| // CHECK: [[T0:%.*]] = call ptr @makeA() [ "clang.arc.attachedcall"(ptr @llvm.objc.unsafeClaimAutoreleasedReturnValue) ] |
| // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.noop.use({{.*}} [[T0]]) |
| // CHECK-NEXT: ret void |
| |
| // This is always at the end of the module. |
| |
| // CHECK-OPTIMIZED: !llvm.module.flags = !{!0, |
| // CHECK-OPTIMIZED: !0 = !{i32 1, !"clang.arc.retainAutoreleasedReturnValueMarker", !"mov{{.*}}marker for objc_retainAutoreleaseReturnValue"} |