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