xref: /aosp_15_r20/external/clang/test/CodeGenObjC/objc-fixed-enum.m (revision 67e74705e28f6214e480b399dd47ea732279e315)
1*67e74705SXin Li// RUN: %clang_cc1 -debug-info-kind=limited -emit-llvm -o - %s | FileCheck %s
2*67e74705SXin Li// The DWARF standard says the underlying data type of an enum may be
3*67e74705SXin Li// stored in an DW_AT_type entry in the enum DIE. This is useful to have
4*67e74705SXin Li// so the debugger knows about the signedness of the underlying type.
5*67e74705SXin Li
6*67e74705SXin Litypedef long NSInteger;
7*67e74705SXin Li#define NS_ENUM(_type, _name) enum _name : _type _name; enum _name : _type
8*67e74705SXin Li
9*67e74705SXin Li// Enum with no specified underlying type
10*67e74705SXin Litypedef enum {
11*67e74705SXin Li  Enum0One,
12*67e74705SXin Li  Enum0Two
13*67e74705SXin Li} Enum0;
14*67e74705SXin Li
15*67e74705SXin Li// Enum declared with the NS_ENUM macro
16*67e74705SXin Litypedef NS_ENUM(NSInteger, Enum1) {
17*67e74705SXin Li  Enum1One = -1,
18*67e74705SXin Li  Enum1Two
19*67e74705SXin Li};
20*67e74705SXin Li
21*67e74705SXin Li// Enum declared with a fixed underlying type
22*67e74705SXin Litypedef enum : NSInteger {
23*67e74705SXin Li  Enum2One = -1,
24*67e74705SXin Li  Enum2Two
25*67e74705SXin Li} Enum2;
26*67e74705SXin Li
27*67e74705SXin Li// Typedef and declaration separately
28*67e74705SXin Lienum : NSInteger
29*67e74705SXin Li{
30*67e74705SXin Li  Enum3One = -1,
31*67e74705SXin Li  Enum3Two
32*67e74705SXin Li};
33*67e74705SXin Litypedef NSInteger Enum3;
34*67e74705SXin Li
35*67e74705SXin Liint main() {
36*67e74705SXin Li  Enum0 e0 = Enum0One;
37*67e74705SXin Li  // CHECK: call void @llvm.dbg.declare(metadata {{.*}}, metadata ![[ENUM0:[0-9]+]], metadata !{{.*}})
38*67e74705SXin Li  Enum1 e1 = Enum1One;
39*67e74705SXin Li  // CHECK: call void @llvm.dbg.declare(metadata {{.*}}, metadata ![[ENUM1:[0-9]+]], metadata !{{.*}})
40*67e74705SXin Li  Enum2 e2 = Enum2One;
41*67e74705SXin Li  // CHECK: call void @llvm.dbg.declare(metadata {{.*}}, metadata ![[ENUM2:[0-9]+]], metadata !{{.*}})
42*67e74705SXin Li  Enum3 e3 = Enum3One;
43*67e74705SXin Li  // CHECK: call void @llvm.dbg.declare(metadata {{.*}}, metadata ![[ENUM3:[0-9]+]], metadata !{{.*}})
44*67e74705SXin Li
45*67e74705SXin Li  // -Werror and the following line ensures that these enums are not
46*67e74705SXin Li  // -treated as C++11 strongly typed enums.
47*67e74705SXin Li  return e0 != e1 && e1 == e2 && e2 == e3;
48*67e74705SXin Li}
49*67e74705SXin Li// CHECK: ![[ENUMERATOR0:[0-9]+]] = !DICompositeType(tag: DW_TAG_enumeration_type
50*67e74705SXin Li// CHECK-SAME:                                       line: 10,
51*67e74705SXin Li// CHECK: ![[ENUMERATOR1:[0-9]+]] = !DICompositeType(tag: DW_TAG_enumeration_type, name: "Enum1"
52*67e74705SXin Li// CHECK-SAME:                                       line: 16
53*67e74705SXin Li// CHECK-SAME:                                       baseType: ![[ENUMERATOR3:[0-9]+]]
54*67e74705SXin Li// CHECK: ![[ENUMERATOR3]] = !DIDerivedType(tag: DW_TAG_typedef, name: "NSInteger"
55*67e74705SXin Li// CHECK-SAME:                              line: 6
56*67e74705SXin Li// CHECK-SAME:                              baseType: ![[LONGINT:[0-9]+]]
57*67e74705SXin Li// CHECK: ![[LONGINT]] = !DIBasicType(name: "long int"
58*67e74705SXin Li// CHECK: ![[ENUMERATOR2:[0-9]+]] = !DICompositeType(tag: DW_TAG_enumeration_type,
59*67e74705SXin Li// CHECK-SAME:                                       line: 22
60*67e74705SXin Li// CHECK-SAME:                                       baseType: ![[ENUMERATOR3]]
61*67e74705SXin Li
62*67e74705SXin Li// CHECK: ![[ENUM0]] = !DILocalVariable(name: "e0"
63*67e74705SXin Li// CHECK-SAME:                          type: ![[TYPE0:[0-9]+]]
64*67e74705SXin Li// CHECK: ![[TYPE0]] = !DIDerivedType(tag: DW_TAG_typedef, name: "Enum0",
65*67e74705SXin Li// CHECK-SAME:                        baseType: ![[ENUMERATOR0]]
66*67e74705SXin Li
67*67e74705SXin Li// CHECK: ![[ENUM1]] = !DILocalVariable(name: "e1"
68*67e74705SXin Li// CHECK-SAME:                          type: ![[TYPE1:[0-9]+]]
69*67e74705SXin Li// CHECK: ![[TYPE1]] = !DIDerivedType(tag: DW_TAG_typedef, name: "Enum1"
70*67e74705SXin Li// CHECK-SAME:                        baseType: ![[ENUMERATOR1]]
71*67e74705SXin Li
72*67e74705SXin Li// CHECK: ![[ENUM2]] = !DILocalVariable(name: "e2"
73*67e74705SXin Li// CHECK-SAME:                          type: ![[TYPE2:[0-9]+]]
74*67e74705SXin Li// CHECK: ![[TYPE2]] = !DIDerivedType(tag: DW_TAG_typedef, name: "Enum2"
75*67e74705SXin Li// CHECK-SAME:                        baseType: ![[ENUMERATOR2]]
76*67e74705SXin Li
77*67e74705SXin Li// CHECK: ![[ENUM3]] = !DILocalVariable(name: "e3"
78*67e74705SXin Li// CHECK-SAME:                          type: ![[TYPE3:[0-9]+]]
79*67e74705SXin Li// CHECK: ![[TYPE3]] = !DIDerivedType(tag: DW_TAG_typedef, name: "Enum3"
80*67e74705SXin Li// CHECK-SAME:                        baseType: ![[ENUMERATOR3]]
81