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      1 ; RUN: llc < %s -filetype=obj | llvm-readobj - -codeview | FileCheck %s
      2 
      3 ; C++ source to regenerate:
      4 ; $ cat t.cpp
      5 ; #pragma pack(1)
      6 ; struct S0 {
      7 ;   char : 8;
      8 ;   short   : 8;
      9 ;   short x : 8;
     10 ; } s0;
     11 ;
     12 ; #pragma pack(1)
     13 ; struct S1 {
     14 ;   char x1[2];
     15 ;   char x2;
     16 ;   int y : 23;
     17 ;   int z : 23;
     18 ;   int w : 2;
     19 ;   struct { char c; short s; } v;
     20 ;   short u : 3;
     21 ; } s1;
     22 ;
     23 ; #pragma pack(1)
     24 ; struct S2 {
     25 ;   char : 0;
     26 ;   int y : 1;
     27 ; } s2;
     28 ; $ clang t.cpp -S -emit-llvm -g -gcodeview -o t.ll
     29 
     30 ; CHECK: CodeViewTypes [
     31 ; CHECK:  BitField ([[S0_x:.*]]) {
     32 ; CHECK:    TypeLeafKind: LF_BITFIELD (0x1205)
     33 ; CHECK:    Type: short (0x11)
     34 ; CHECK:    BitSize: 8
     35 ; CHECK:    BitOffset: 8
     36 ; CHECK:  }
     37 ; CHECK:  FieldList ([[S0_fl:.*]]) {
     38 ; CHECK:    TypeLeafKind: LF_FIELDLIST (0x1203)
     39 ; CHECK:    DataMember {
     40 ; CHECK:      Type: [[S0_x:.*]]
     41 ; CHECK:      FieldOffset: 0x1
     42 ; CHECK:      Name: x
     43 ; CHECK:    }
     44 ; CHECK:  }
     45 ; CHECK:  Struct ({{.*}}) {
     46 ; CHECK:    TypeLeafKind: LF_STRUCTURE (0x1505)
     47 ; CHECK:    MemberCount: 1
     48 ; CHECK:    Properties [ (0x0)
     49 ; CHECK:    ]
     50 ; CHECK:    FieldList: <field list> ([[S0_fl]])
     51 ; CHECK:    SizeOf: 3
     52 ; CHECK:    Name: S0
     53 ; CHECK:  }
     54 ; CHECK:  BitField ([[S1_y_z:.*]]) {
     55 ; CHECK:    TypeLeafKind: LF_BITFIELD (0x1205)
     56 ; CHECK:    Type: int (0x74)
     57 ; CHECK:    BitSize: 23
     58 ; CHECK:    BitOffset: 0
     59 ; CHECK:  }
     60 ; CHECK:  BitField ([[S1_w:.*]]) {
     61 ; CHECK:    TypeLeafKind: LF_BITFIELD (0x1205)
     62 ; CHECK:    Type: int (0x74)
     63 ; CHECK:    BitSize: 2
     64 ; CHECK:    BitOffset: 23
     65 ; CHECK:  }
     66 ; CHECK:  FieldList ([[anon_fl:.*]]) {
     67 ; CHECK:    TypeLeafKind: LF_FIELDLIST (0x1203)
     68 ; CHECK:    DataMember {
     69 ; CHECK:      TypeLeafKind: LF_MEMBER (0x150D)
     70 ; CHECK:      Type: char (0x70)
     71 ; CHECK:      FieldOffset: 0x0
     72 ; CHECK:      Name: c
     73 ; CHECK:    }
     74 ; CHECK:    DataMember {
     75 ; CHECK:      TypeLeafKind: LF_MEMBER (0x150D)
     76 ; CHECK:      Type: short (0x11)
     77 ; CHECK:      FieldOffset: 0x1
     78 ; CHECK:      Name: s
     79 ; CHECK:    }
     80 ; CHECK:  }
     81 ; CHECK:  Struct ([[anon_ty:.*]]) {
     82 ; CHECK:    TypeLeafKind: LF_STRUCTURE (0x1505)
     83 ; CHECK:    MemberCount: 2
     84 ; CHECK:    Properties [ (0x8)
     85 ; CHECK:      Nested (0x8)
     86 ; CHECK:    ]
     87 ; CHECK:    FieldList: <field list> ([[anon_fl]])
     88 ; CHECK:    SizeOf: 3
     89 ; CHECK:    Name: S1::<unnamed-tag>
     90 ; CHECK:  }
     91 ; CHECK:  BitField ([[S1_u:.*]]) {
     92 ; CHECK:    TypeLeafKind: LF_BITFIELD (0x1205)
     93 ; CHECK:    Type: short (0x11)
     94 ; CHECK:    BitSize: 3
     95 ; CHECK:    BitOffset: 0
     96 ; CHECK:  }
     97 ; CHECK:  FieldList ([[S1_fl:.*]]) {
     98 ; CHECK:    TypeLeafKind: LF_FIELDLIST (0x1203)
     99 ; CHECK:    DataMember {
    100 ; CHECK:      FieldOffset: 0x0
    101 ; CHECK:      Name: x1
    102 ; CHECK:    }
    103 ; CHECK:    DataMember {
    104 ; CHECK:      Type: char (0x70)
    105 ; CHECK:      FieldOffset: 0x2
    106 ; CHECK:      Name: x2
    107 ; CHECK:    }
    108 ; CHECK:    DataMember {
    109 ; CHECK:      Type: [[S1_y_z]]
    110 ; CHECK:      FieldOffset: 0x3
    111 ; CHECK:      Name: y
    112 ; CHECK:    }
    113 ; CHECK:    DataMember {
    114 ; CHECK:      Type: [[S1_y_z]]
    115 ; CHECK:      FieldOffset: 0x7
    116 ; CHECK:      Name: z
    117 ; CHECK:    }
    118 ; CHECK:    DataMember {
    119 ; CHECK:      Type: [[S1_w]]
    120 ; CHECK:      FieldOffset: 0x7
    121 ; CHECK:      Name: w
    122 ; CHECK:    }
    123 ; CHECK:    DataMember {
    124 ; CHECK:      Type: S1::<unnamed-tag> ([[anon_ty]])
    125 ; CHECK:      FieldOffset: 0xB
    126 ; CHECK:      Name: v
    127 ; CHECK:    }
    128 ; CHECK:    DataMember {
    129 ; CHECK:      Type: [[S1_u]]
    130 ; CHECK:      FieldOffset: 0xE
    131 ; CHECK:      Name: u
    132 ; CHECK:    }
    133 ; CHECK:  }
    134 ; CHECK:  Struct ({{.*}}) {
    135 ; CHECK:    TypeLeafKind: LF_STRUCTURE (0x1505)
    136 ; CHECK:    MemberCount: 7
    137 ; CHECK:    Properties [ (0x0)
    138 ; CHECK:    ]
    139 ; CHECK:    FieldList: <field list> ([[S1_fl]])
    140 ; CHECK:    SizeOf: 16
    141 ; CHECK:    Name: S1
    142 ; CHECK:  }
    143 ; CHECK:  BitField ([[S2_y:.*]]) {
    144 ; CHECK:    TypeLeafKind: LF_BITFIELD (0x1205)
    145 ; CHECK:    Type: int (0x74)
    146 ; CHECK:    BitSize: 1
    147 ; CHECK:    BitOffset: 0
    148 ; CHECK:  }
    149 ; CHECK:  FieldList ([[S2_fl:.*]]) {
    150 ; CHECK:    TypeLeafKind: LF_FIELDLIST (0x1203)
    151 ; CHECK:    DataMember {
    152 ; CHECK:      Type: [[S2_y]]
    153 ; CHECK:      FieldOffset: 0x0
    154 ; CHECK:      Name: y
    155 ; CHECK:    }
    156 ; CHECK:  }
    157 ; CHECK:  Struct ({{.*}}) {
    158 ; CHECK:    TypeLeafKind: LF_STRUCTURE (0x1505)
    159 ; CHECK:    MemberCount: 1
    160 ; CHECK:    Properties [ (0x0)
    161 ; CHECK:    ]
    162 ; CHECK:    FieldList: <field list> ([[S2_fl]])
    163 ; CHECK:    SizeOf: 4
    164 ; CHECK:    Name: S2
    165 ; CHECK:  }
    166 
    167 source_filename = "test/DebugInfo/COFF/bitfields.ll"
    168 target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
    169 target triple = "x86_64-pc-windows-msvc18.0.0"
    170 
    171 %struct.S0 = type <{ i8, i16 }>
    172 %struct.S1 = type <{ [2 x i8], i8, i32, i32, %struct.anon, i16 }>
    173 %struct.anon = type <{ i8, i16 }>
    174 %struct.S2 = type { i32 }
    175 
    176 @s0 = common global %struct.S0 zeroinitializer, align 1, !dbg !0
    177 @s1 = common global %struct.S1 zeroinitializer, align 1, !dbg !6
    178 @s2 = common global %struct.S2 zeroinitializer, align 1, !dbg !28
    179 
    180 !llvm.dbg.cu = !{!2}
    181 !llvm.module.flags = !{!36, !37, !38}
    182 !llvm.ident = !{!39}
    183 
    184 !0 = distinct !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
    185 !1 = !DIGlobalVariable(name: "s0", scope: !2, file: !8, line: 7, type: !33, isLocal: false, isDefinition: true)
    186 !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 3.9.0 (trunk 273812) (llvm/trunk 273843)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)
    187 !3 = !DIFile(filename: "-", directory: "/usr/local/google/home/majnemer/llvm/src")
    188 !4 = !{}
    189 !5 = !{!0, !6, !28}
    190 !6 = distinct !DIGlobalVariableExpression(var: !7, expr: !DIExpression())
    191 !7 = !DIGlobalVariable(name: "s1", scope: !2, file: !8, line: 18, type: !9, isLocal: false, isDefinition: true)
    192 !8 = !DIFile(filename: "<stdin>", directory: "/usr/local/google/home/majnemer/llvm/src")
    193 !9 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "S1", file: !8, line: 10, size: 128, elements: !10)
    194 !10 = !{!11, !16, !17, !19, !20, !21, !27}
    195 !11 = !DIDerivedType(tag: DW_TAG_member, name: "x1", scope: !9, file: !8, line: 11, baseType: !12, size: 16)
    196 !12 = !DICompositeType(tag: DW_TAG_array_type, baseType: !13, size: 16, elements: !14)
    197 !13 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)
    198 !14 = !{!15}
    199 !15 = !DISubrange(count: 2)
    200 !16 = !DIDerivedType(tag: DW_TAG_member, name: "x2", scope: !9, file: !8, line: 12, baseType: !13, size: 8, offset: 16)
    201 !17 = !DIDerivedType(tag: DW_TAG_member, name: "y", scope: !9, file: !8, line: 13, baseType: !18, size: 23, offset: 24, flags: DIFlagBitField, extraData: i64 24)
    202 !18 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
    203 !19 = !DIDerivedType(tag: DW_TAG_member, name: "z", scope: !9, file: !8, line: 14, baseType: !18, size: 23, offset: 56, flags: DIFlagBitField, extraData: i64 56)
    204 !20 = !DIDerivedType(tag: DW_TAG_member, name: "w", scope: !9, file: !8, line: 15, baseType: !18, size: 2, offset: 79, flags: DIFlagBitField, extraData: i64 56)
    205 !21 = !DIDerivedType(tag: DW_TAG_member, name: "v", scope: !9, file: !8, line: 16, baseType: !22, size: 24, offset: 88)
    206 !22 = distinct !DICompositeType(tag: DW_TAG_structure_type, scope: !9, file: !8, line: 16, size: 24, elements: !23)
    207 !23 = !{!24, !25}
    208 !24 = !DIDerivedType(tag: DW_TAG_member, name: "c", scope: !22, file: !8, line: 16, baseType: !13, size: 8)
    209 !25 = !DIDerivedType(tag: DW_TAG_member, name: "s", scope: !22, file: !8, line: 16, baseType: !26, size: 16, offset: 8)
    210 !26 = !DIBasicType(name: "short", size: 16, encoding: DW_ATE_signed)
    211 !27 = !DIDerivedType(tag: DW_TAG_member, name: "u", scope: !9, file: !8, line: 17, baseType: !26, size: 3, offset: 112, flags: DIFlagBitField, extraData: i64 112)
    212 !28 = distinct !DIGlobalVariableExpression(var: !29, expr: !DIExpression())
    213 !29 = !DIGlobalVariable(name: "s2", scope: !2, file: !8, line: 24, type: !30, isLocal: false, isDefinition: true)
    214 !30 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "S2", file: !8, line: 21, size: 32, elements: !31)
    215 !31 = !{!32}
    216 !32 = !DIDerivedType(tag: DW_TAG_member, name: "y", scope: !30, file: !8, line: 23, baseType: !18, size: 1, flags: DIFlagBitField, extraData: i64 0)
    217 !33 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "S0", file: !8, line: 3, size: 24, elements: !34)
    218 !34 = !{!35}
    219 !35 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !33, file: !8, line: 6, baseType: !26, size: 8, offset: 16, flags: DIFlagBitField, extraData: i64 8)
    220 !36 = !{i32 2, !"CodeView", i32 1}
    221 !37 = !{i32 2, !"Debug Info Version", i32 3}
    222 !38 = !{i32 1, !"PIC Level", i32 2}
    223 !39 = !{!"clang version 3.9.0 (trunk 273812) (llvm/trunk 273843)"}
    224 
    225