1; RUN: llc -filetype=obj < %s | llvm-dwarfdump -debug-dump=info - | FileCheck %s 2; CHECK: DW_TAG_variable 3; CHECK-NEXT: DW_AT_const_value [DW_FORM_udata] (0) 4; CHECK-NEXT: DW_AT_name {{.*}}"a" 5; 6; ModuleID = 'union.c' 7; generated at -O1 from: 8; union mfi_evt { 9; struct { 10; int reserved; 11; } members; 12; } mfi_aen_setup() { 13; union mfi_evt a; 14; a.members.reserved = 0; 15; } 16target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 17target triple = "x86_64-apple-macosx10.10.0" 18 19%union.mfi_evt = type { %struct.anon } 20%struct.anon = type { i32 } 21 22; Function Attrs: nounwind readnone ssp uwtable 23define i32 @mfi_aen_setup() #0 !dbg !4 { 24entry: 25 tail call void @llvm.dbg.declare(metadata %union.mfi_evt* undef, metadata !16, metadata !21), !dbg !22 26 tail call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !16, metadata !21), !dbg !22 27 ret i32 undef, !dbg !23 28} 29 30; Function Attrs: nounwind readnone 31declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 32 33; Function Attrs: nounwind readnone 34declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1 35 36attributes #0 = { nounwind readnone ssp uwtable } 37attributes #1 = { nounwind readnone } 38 39!llvm.dbg.cu = !{!0} 40!llvm.module.flags = !{!17, !18, !19} 41!llvm.ident = !{!20} 42 43!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.7.0 (trunk 226915) (llvm/trunk 226905)", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2) 44!1 = !DIFile(filename: "union.c", directory: "") 45!2 = !{} 46!4 = distinct !DISubprogram(name: "mfi_aen_setup", line: 5, isLocal: false, isDefinition: true, isOptimized: true, unit: !0, scopeLine: 5, file: !1, scope: !5, type: !6, variables: !15) 47!5 = !DIFile(filename: "union.c", directory: "") 48!6 = !DISubroutineType(types: !7) 49!7 = !{!8} 50!8 = !DICompositeType(tag: DW_TAG_union_type, name: "mfi_evt", line: 1, size: 32, align: 32, file: !1, elements: !9) 51!9 = !{!10} 52!10 = !DIDerivedType(tag: DW_TAG_member, name: "members", line: 4, size: 32, align: 32, file: !1, scope: !8, baseType: !11) 53!11 = !DICompositeType(tag: DW_TAG_structure_type, line: 2, size: 32, align: 32, file: !1, scope: !8, elements: !12) 54!12 = !{!13} 55!13 = !DIDerivedType(tag: DW_TAG_member, name: "reserved", line: 3, size: 32, align: 32, file: !1, scope: !11, baseType: !14) 56!14 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 57!15 = !{!16} 58!16 = !DILocalVariable(name: "a", line: 6, scope: !4, file: !5, type: !8) 59!17 = !{i32 2, !"Dwarf Version", i32 2} 60!18 = !{i32 2, !"Debug Info Version", i32 3} 61!19 = !{i32 1, !"PIC Level", i32 2} 62!20 = !{!"clang version 3.7.0 (trunk 226915) (llvm/trunk 226905)"} 63!21 = !DIExpression() 64!22 = !DILocation(line: 6, column: 17, scope: !4) 65!23 = !DILocation(line: 8, column: 1, scope: !4) 66