1; RUN: llc -mtriple aarch64_be-gnu-linux -O0 -filetype=obj -o %t_be.o %s 2; RUN: llvm-dwarfdump -debug-dump=info %t_be.o | FileCheck %s 3 4; Produced at -O0 from: 5; struct bitfield { 6; int a : 2; 7; int b : 32; 8; int c : 1; 9; int d : 28; 10; }; 11; struct bitfield b; 12 13; Note that DWARF 2 counts bit offsets backwards from the high end of 14; the storage unit to the high end of the bit field. 15 16; CHECK: DW_TAG_member 17; CHECK-NEXT: DW_AT_name{{.*}}"a" 18; CHECK-NOT: DW_TAG_member 19; CHECK: DW_AT_byte_size {{.*}} (0x04) 20; CHECK-NEXT: DW_AT_bit_size {{.*}} (0x02) 21; CHECK-NEXT: DW_AT_bit_offset {{.*}} (0x00) 22; CHECK-NEXT: DW_AT_data_member_location {{.*}} 00 23 24; CHECK: DW_TAG_member 25; CHECK-NEXT: DW_AT_name{{.*}}"b" 26; CHECK-NOT: DW_TAG_member 27; CHECK: DW_AT_data_member_location {{.*}} 04 28 29; CHECK: DW_TAG_member 30; CHECK-NEXT: DW_AT_name{{.*}}"c" 31; CHECK-NOT: DW_TAG_member 32; CHECK: DW_AT_byte_size {{.*}} (0x04) 33; CHECK-NEXT: DW_AT_bit_size {{.*}} (0x01) 34; CHECK-NEXT: DW_AT_bit_offset {{.*}} (0x00) 35; CHECK-NEXT: DW_AT_data_member_location {{.*}} 08 36 37; CHECK: DW_TAG_member 38; CHECK-NEXT: DW_AT_name{{.*}}"d" 39; CHECK-NOT: DW_TAG_member 40; CHECK: DW_AT_byte_size {{.*}} (0x04) 41; CHECK-NEXT: DW_AT_bit_size {{.*}} (0x1c) 42; CHECK-NEXT: DW_AT_bit_offset {{.*}} (0x01) 43; CHECK-NEXT: DW_AT_data_member_location {{.*}} 08 44 45; ModuleID = 'bitfields.c' 46target datalayout = "E-m:e-i64:64-i128:128-n32:64-S128" 47target triple = "aarch64_be--linux-gnu" 48 49%struct.bitfield = type <{ i8, [3 x i8], i64 }> 50 51@b = common global %struct.bitfield zeroinitializer, align 4 52 53!llvm.dbg.cu = !{!0} 54!llvm.module.flags = !{!13, !14, !15} 55!llvm.ident = !{!16} 56 57!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0 (trunk 240548) (llvm/trunk 240554)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !3, imports: !2) 58!1 = !DIFile(filename: "bitfields.c", directory: "/") 59!2 = !{} 60!3 = !{!4} 61!4 = !DIGlobalVariable(name: "b", scope: !0, file: !5, line: 8, type: !6, isLocal: false, isDefinition: true, variable: %struct.bitfield* @b) 62!5 = !DIFile(filename: "bitfields.c", directory: "/") 63!6 = !DICompositeType(tag: DW_TAG_structure_type, name: "bitfield", file: !5, line: 1, size: 96, align: 32, elements: !7) 64!7 = !{!8, !10, !11, !12} 65!8 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !6, file: !5, line: 2, baseType: !9, size: 2, align: 32) 66!9 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 67!10 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !6, file: !5, line: 3, baseType: !9, size: 32, align: 32, offset: 32) 68!11 = !DIDerivedType(tag: DW_TAG_member, name: "c", scope: !6, file: !5, line: 4, baseType: !9, size: 1, align: 32, offset: 64) 69!12 = !DIDerivedType(tag: DW_TAG_member, name: "d", scope: !6, file: !5, line: 5, baseType: !9, size: 28, align: 32, offset: 65) 70!13 = !{i32 2, !"Dwarf Version", i32 2} 71!14 = !{i32 2, !"Debug Info Version", i32 3} 72!15 = !{i32 1, !"PIC Level", i32 2} 73!16 = !{!"clang version 3.7.0 (trunk 240548) (llvm/trunk 240554)"} 74