clang/test/CodeGenObjC/objc-fixed-enum.m

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