xref: /llvm-project/clang/test/CodeGenObjCXX/arc-attrs.mm (revision 08be7a429551cc995c939b357f709b878bfaf322) 
1// RUN: %clang_cc1 -triple x86_64-apple-darwin11 -emit-llvm -fobjc-arc -o - %s | FileCheck %s
2
3id makeObject1() __attribute__((ns_returns_retained));
4id makeObject2() __attribute__((ns_returns_retained));
5void releaseObject(__attribute__((ns_consumed)) id);
6
7// CHECK-LABEL: define{{.*}} void @_Z20basicCorrectnessTestv
8void basicCorrectnessTest() {
9  // CHECK: [[X:%.*]] = alloca ptr, align 8
10  // CHECK-NEXT: [[OBJ1:%.*]] = call noundef ptr @_Z11makeObject1v()
11  // CHECK-NEXT: store ptr [[OBJ1]], ptr [[X]], align 8
12  id x = makeObject1();
13
14  // CHECK-NEXT: [[OBJ2:%.*]] = call noundef ptr @_Z11makeObject2v()
15  // CHECK-NEXT: call void @_Z13releaseObjectP11objc_object(ptr noundef [[OBJ2]])
16  releaseObject(makeObject2());
17
18  // CHECK-NEXT: call void @llvm.objc.storeStrong(ptr [[X]], ptr null)
19  // CHECK-NEXT: ret void
20}
21
22
23template <typename T>
24T makeObjectT1() __attribute__((ns_returns_retained));
25template <typename T>
26T makeObjectT2() __attribute__((ns_returns_retained));
27
28template <typename T>
29void releaseObjectT(__attribute__((ns_consumed)) T);
30
31// CHECK-LABEL: define{{.*}} void @_Z12templateTestv
32void templateTest() {
33  // CHECK: [[X:%.*]] = alloca ptr, align 8
34  // CHECK-NEXT: [[OBJ1:%.*]] = call noundef ptr @_Z12makeObjectT1IU8__strongP11objc_objectET_v()
35  // CHECK-NEXT: store ptr [[OBJ1]], ptr [[X]], align 8
36  id x = makeObjectT1<id>();
37
38  // CHECK-NEXT: [[OBJ2:%.*]] = call noundef ptr @_Z12makeObjectT2IU8__strongP11objc_objectET_v()
39  // CHECK-NEXT: call void @_Z13releaseObjectP11objc_object(ptr noundef [[OBJ2]])
40  releaseObject(makeObjectT2<id>());
41
42  // CHECK-NEXT: [[OBJ3:%.*]] = call noundef ptr @_Z11makeObject1v()
43  // CHECK-NEXT: call void @_Z14releaseObjectTIU8__strongP11objc_objectEvT_(ptr noundef [[OBJ3]])
44  releaseObjectT(makeObject1());
45
46  // CHECK-NEXT: call void @llvm.objc.storeStrong(ptr [[X]], ptr null)
47  // CHECK-NEXT: ret void
48}
49
50// PR27887
51struct ForwardConsumed {
52  ForwardConsumed(__attribute__((ns_consumed)) id x);
53};
54
55ForwardConsumed::ForwardConsumed(__attribute__((ns_consumed)) id x) {}
56
57// CHECK: define{{.*}} void @_ZN15ForwardConsumedC2EP11objc_object(
58// CHECK-NOT:  objc_retain
59// CHECK:      store ptr %x, ptr [[X:%.*]],
60// CHECK-NOT:  [[X]]
61// CHECK:      call void @llvm.objc.storeStrong(ptr [[X]], ptr null)
62
63// CHECK: define{{.*}} void @_ZN15ForwardConsumedC1EP11objc_object(
64// CHECK-NOT:  objc_retain
65// CHECK:      store ptr %x, ptr [[X:%.*]],
66// CHECK:      [[T0:%.*]] = load ptr, ptr [[X]],
67// CHECK-NEXT: store ptr null, ptr [[X]],
68// CHECK-NEXT: call void @_ZN15ForwardConsumedC2EP11objc_object({{.*}}, ptr noundef [[T0]])
69// CHECK:      call void @llvm.objc.storeStrong(ptr [[X]], ptr null)
70