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      1 // RUN: %clang_cc1 -emit-llvm -g -triple x86_64-apple-darwin -std=c++11 %s -o - | FileCheck %s
      2 
      3 enum class A { A1=1 };                 // underlying type is int by default
      4 enum class B: unsigned long { B1=1 };  // underlying type is unsigned long
      5 enum C { C1 = 1 };
      6 enum D : short; // enum forward declaration
      7 A a;
      8 B b;
      9 C c;
     10 D d;
     11 
     12 // CHECK: !MDCompositeType(tag: DW_TAG_enumeration_type, name: "A"
     13 // CHECK-SAME:             line: 3
     14 // CHECK-SAME:             baseType: ![[INT:[0-9]+]]
     15 // CHECK-SAME:             size: 32, align: 32
     16 // CHECK-NOT:              offset:
     17 // CHECK-NOT:              flags:
     18 // CHECK-SAME:             ){{$}}
     19 // CHECK: ![[INT]] = !MDBasicType(name: "int"
     20 // CHECK: !MDCompositeType(tag: DW_TAG_enumeration_type, name: "B"
     21 // CHECK-SAME:             line: 4
     22 // CHECK-SAME:             baseType: ![[ULONG:[0-9]+]]
     23 // CHECK-SAME:             size: 64, align: 64
     24 // CHECK-NOT:              offset:
     25 // CHECK-NOT:              flags:
     26 // CHECK-SAME:             ){{$}}
     27 // CHECK: ![[ULONG]] = !MDBasicType(name: "long unsigned int"
     28 // CHECK: !MDCompositeType(tag: DW_TAG_enumeration_type, name: "C"
     29 // CHECK-SAME:             line: 5
     30 // CHECK-NOT:              baseType:
     31 // CHECK-SAME:             size: 32, align: 32
     32 // CHECK-NOT:              offset:
     33 // CHECK-NOT:              flags:
     34 // CHECK-SAME:             ){{$}}
     35 
     36 namespace PR14029 {
     37   // Make sure this doesn't crash/assert.
     38   template <typename T> struct Test {
     39     enum class Tag {
     40       test = 0
     41     };
     42     Test() {
     43       auto t = Tag::test;
     44     }
     45     Tag tag() const { return static_cast<Tag>(1); }
     46   };
     47   Test<int> t;
     48 }
     49 
     50 namespace test2 {
     51 // FIXME: this should just be a declaration under -fno-standalone-debug
     52 // CHECK: !MDCompositeType(tag: DW_TAG_enumeration_type, name: "E"
     53 // CHECK-SAME:             scope: [[TEST2:![0-9]+]]
     54 // CHECK-SAME:             elements: [[TEST_ENUMS:![0-9]+]]
     55 // CHECK-SAME:             identifier: "_ZTSN5test21EE"
     56 // CHECK: [[TEST2]] = !MDNamespace(name: "test2"
     57 // CHECK: [[TEST_ENUMS]] = !{[[TEST_E:![0-9]*]]}
     58 // CHECK: [[TEST_E]] = !MDEnumerator(name: "e", value: 0)
     59 enum E : int;
     60 void func(E *) {
     61 }
     62 enum E : int { e };
     63 }
     64 
     65 namespace test3 {
     66 // FIXME: this should just be a declaration under -fno-standalone-debug
     67 // CHECK: !MDCompositeType(tag: DW_TAG_enumeration_type, name: "E"
     68 // CHECK-SAME:             scope: [[TEST3:![0-9]+]]
     69 // CHECK-SAME:             elements: [[TEST_ENUMS]]
     70 // CHECK-SAME:             identifier: "_ZTSN5test31EE"
     71 // CHECK: [[TEST3]] = !MDNamespace(name: "test3"
     72 enum E : int { e };
     73 void func(E *) {
     74 }
     75 }
     76 
     77 namespace test4 {
     78 // CHECK: !MDCompositeType(tag: DW_TAG_enumeration_type, name: "E"
     79 // CHECK-SAME:             scope: [[TEST4:![0-9]+]]
     80 // CHECK-SAME:             elements: [[TEST_ENUMS]]
     81 // CHECK-SAME:             identifier: "_ZTSN5test41EE"
     82 // CHECK: [[TEST4]] = !MDNamespace(name: "test4"
     83 enum E : int;
     84 void f1(E *) {
     85 }
     86 enum E : int { e };
     87 void f2(E) {
     88 }
     89 }
     90 
     91 // CHECK: !MDCompositeType(tag: DW_TAG_enumeration_type, name: "D"
     92 // CHECK-SAME:             line: 6
     93 // CHECK-SAME:             size: 16, align: 16
     94 // CHECK-NOT:              offset:
     95 // CHECK-SAME:             flags: DIFlagFwdDecl
     96 
     97 namespace test5 {
     98 // CHECK: !MDCompositeType(tag: DW_TAG_enumeration_type, name: "E"
     99 // CHECK-SAME:             scope: [[TEST5:![0-9]+]]
    100 // CHECK-SAME:             flags: DIFlagFwdDecl
    101 // CHECK-SAME:             identifier: "_ZTSN5test51EE"
    102 // CHECK: [[TEST5]] = !MDNamespace(name: "test5"
    103 enum E : int;
    104 void f1(E *) {
    105 }
    106 }
    107 
    108 namespace test6 {
    109 // Ensure typedef'd enums aren't manifest by debug info generation.
    110 // This could cause "typedef changes linkage of anonymous type, but linkage was
    111 // already computed" errors.
    112 // CHECK-NOT: test6
    113 typedef enum {
    114 } E;
    115 }
    116