1; RUN: llc -mtriple x86_64-apple-macosx -O0 -filetype=obj -o - %s \ 2; RUN: | llvm-dwarfdump -debug-dump=info - | FileCheck %s 3; RUN: llc -mtriple x86_64-gnu-linux -O0 -filetype=obj -o - %s \ 4; RUN: | llvm-dwarfdump -debug-dump=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 25 26!llvm.dbg.cu = !{!0} 27!llvm.module.flags = !{!14, !15, !16} 28!llvm.ident = !{!17} 29 30!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.9.0 (trunk 267633)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !3) 31!1 = !DIFile(filename: "bitfield.c", directory: "/Volumes/Data/llvm") 32!2 = !{} 33!3 = !{!4} 34!4 = distinct !DIGlobalVariable(name: "s", scope: !0, file: !1, line: 8, type: !5, isLocal: false, isDefinition: true, variable: %struct.PackedBits* @s) 35!5 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "PackedBits", file: !1, line: 3, size: 40, align: 8, elements: !6) 36!6 = !{!7, !9, !13} 37 38; CHECK: DW_TAG_member 39; CHECK-NEXT: DW_AT_name{{.*}}"a" 40; CHECK-NOT: DW_TAG 41; CHECK-NOT: DW_AT_bit_offset 42; CHECK-NOT: DW_AT_data_bit_offset 43; CHECK: DW_AT_data_member_location [DW_FORM_data1] (0x00) 44!7 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !5, file: !1, line: 5, baseType: !8, size: 8, align: 8) 45 46!8 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char) 47 48; CHECK: DW_TAG_member 49; CHECK-NEXT: DW_AT_name{{.*}}"b" 50; CHECK-NOT: DW_TAG 51; CHECK-NOT: DW_AT_bit_offset 52; CHECK-NOT: DW_AT_byte_size 53; CHECK: DW_AT_bit_size [DW_FORM_data1] (0x05) 54; CHECK-NOT: DW_AT_byte_size 55; CHECK-NEXT: DW_AT_data_bit_offset [DW_FORM_data1] (0x08) 56; CHECK-NOT: DW_AT_data_member_location 57!9 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !5, file: !1, line: 6, baseType: !10, size: 5, align: 32, offset: 8) 58 59!10 = !DIDerivedType(tag: DW_TAG_typedef, name: "uint32_t", file: !11, line: 183, baseType: !12) 60!11 = !DIFile(filename: "/Volumes/Data/llvm/_build.ninja.release/bin/../lib/clang/3.9.0/include/stdint.h", directory: "/Volumes/Data/llvm") 61!12 = !DIBasicType(name: "unsigned int", size: 32, align: 32, encoding: DW_ATE_unsigned) 62 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!13 = !DIDerivedType(tag: DW_TAG_member, name: "c", scope: !5, file: !1, line: 7, baseType: !10, size: 27, align: 32, offset: 13) 73 74!14 = !{i32 2, !"Dwarf Version", i32 4} 75!15 = !{i32 2, !"Debug Info Version", i32 3} 76!16 = !{i32 1, !"PIC Level", i32 2} 77!17 = !{!"clang version 3.9.0 (trunk 267633)"} 78