llvm/test/DebugInfo/X86/bitfields-dwarf4.ll

   1 ; RUN: llc -mtriple x86_64-apple-macosx -O0 -filetype=obj -o - %s \
   2 ; RUN: | llvm-dwarfdump -v -debug-info - | FileCheck %s
   3 ; RUN: llc -mtriple x86_64-gnu-linux -O0 -filetype=obj -o - %s \
   4 ; RUN: | llvm-dwarfdump -v -debug-info - | FileCheck %s
   5 ; RUN: llc -mtriple x86_64-gnu-linux -O0 -debugger-tune=gdb -filetype=obj -o - %s \
   6 ; RUN: | llvm-dwarfdump -v -debug-info - | FileCheck %s
   7 ;
   8 ; Generated from:
   9 ;   #include <stdint.h>
  10 ;   #pragma pack(1)
  11 ;      struct PackedBits
  12 ;      {
  13 ;        char a;
  14 ;        uint32_t b : 5,
  15 ;        c : 27
  16 ;      } s;
  17 ;   #pragma pack()
  18
  19 source_filename = "bitfield.c"
  20 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
  21 target triple = "x86_64-apple-macosx"
  22
  23 %struct.PackedBits = type <{ i8, i32 }>
  24
  25 @s = common global %struct.PackedBits zeroinitializer, align 1, !dbg !0
  26
  27 !llvm.dbg.cu = !{!2}
  28 !llvm.module.flags = !{!15, !16, !17}
  29 !llvm.ident = !{!18}
  30
  31 !0 = distinct !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
  32 !1 = !DIGlobalVariable(name: "s", scope: !2, file: !3, line: 8, type: !6, isLocal: false, isDefinition: true)
  33 !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 3.9.0 (trunk 267633)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)
  34 !3 = !DIFile(filename: "bitfield.c", directory: "/Volumes/Data/llvm")
  35 !4 = !{}
  36 !5 = !{!0}
  37 !6 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "PackedBits", file: !3, line: 3, size: 40, elements: !7)
  38 !7 = !{!8, !10, !14}
  39 !8 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !6, file: !3, line: 5, baseType: !9, size: 8)
  40 ; CHECK: DW_TAG_member
  41 ; CHECK-NEXT: DW_AT_name{{.*}}"a"
  42 ; CHECK-NOT:  DW_TAG
  43 ; CHECK-NOT:  DW_AT_bit_offset
  44 ; CHECK-NOT:  DW_AT_data_bit_offset
  45 ; CHECK:      DW_AT_data_member_location [DW_FORM_data1]        (0x00)
  46 !9 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)
  47 !10 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !6, file: !3, line: 6, baseType: !11, size: 5, offset: 8, flags: DIFlagBitField)
  48 !11 = !DIDerivedType(tag: DW_TAG_typedef, name: "uint32_t", file: !12, line: 183, baseType: !13)
  49 !12 = !DIFile(filename: "/Volumes/Data/llvm/_build.ninja.release/bin/../lib/clang/3.9.0/include/stdint.h", directory: "/Volumes/Data/llvm")
  50 !13 = !DIBasicType(name: "unsigned int", size: 32, encoding: DW_ATE_unsigned)
  51 ; CHECK: DW_TAG_member
  52 ; CHECK-NEXT: DW_AT_name{{.*}}"b"
  53 ; CHECK-NOT:  DW_TAG
  54 ; CHECK-NOT:  DW_AT_bit_offset
  55 ; CHECK-NOT:  DW_AT_byte_size
  56 ; CHECK:      DW_AT_bit_size             [DW_FORM_data1]        (0x05)
  57 ; CHECK-NOT:  DW_AT_byte_size
  58 ; CHECK-NEXT: DW_AT_data_bit_offset      [DW_FORM_data1]        (0x08)
  59 ; CHECK-NOT:  DW_AT_data_member_location
  60 !14 = !DIDerivedType(tag: DW_TAG_member, name: "c", scope: !6, file: !3, line: 7, baseType: !11, size: 27, offset: 13, flags: DIFlagBitField)
  61 !15 = !{i32 2, !"Dwarf Version", i32 4}
  62 !16 = !{i32 2, !"Debug Info Version", i32 3}
  63 !17 = !{i32 1, !"PIC Level", i32 2}
  64 ; CHECK: DW_TAG_member
  65 ; CHECK-NEXT: DW_AT_name{{.*}}"c"
  66 ; CHECK-NOT:  DW_TAG
  67 ; CHECK-NOT:  DW_AT_bit_offset
  68 ; CHECK-NOT:  DW_AT_byte_size
  69 ; CHECK:      DW_AT_bit_size             [DW_FORM_data1]        (0x1b)
  70 ; CHECK-NEXT: DW_AT_data_bit_offset      [DW_FORM_data1]        (0x0d)
  71 ; CHECK-NOT:  DW_AT_data_member_location
  72 ; CHECK: DW_TAG
  73 !18 = !{!"clang version 3.9.0 (trunk 267633)"}
  74