1; RUN: %llc_dwarf -O0 -filetype=obj < %s > %t 2; RUN: llvm-dwarfdump -v -debug-info %t | FileCheck %s 3 4; RUN: %llc_dwarf --try-experimental-debuginfo-iterators -O0 -filetype=obj < %s > %t 5; RUN: llvm-dwarfdump -v -debug-info %t | FileCheck %s 6 7; Check for a variant part that has two members, one of which has a 8; discriminant value. 9 10; CHECK: DW_TAG_variant_part 11; CHECK-NOT: TAG 12; CHECK: DW_AT_discr [DW_FORM_ref4] (cu + {{0x[0-9a-fA-F]+}} => {[[OFFSET:0x[0-9a-fA-F]+]]}) 13; CHECK-NOT: TAG 14; CHECK: [[OFFSET]]: DW_TAG_member 15; CHECK: DW_AT_type 16; CHECK: DW_AT_alignment 17; CHECK: DW_AT_data_member_location [DW_FORM_data1] (0x00) 18; CHECK: DW_AT_artificial [DW_FORM_flag_present] (true) 19; CHECK: DW_TAG_variant 20; CHECK: DW_TAG_member 21; CHECK: DW_AT_type 22; CHECK: DW_AT_alignment 23; CHECK: DW_AT_data_member_location [DW_FORM_data1] (0x00) 24; CHECK: DW_TAG_variant 25; CHECK: DW_AT_discr_value [DW_FORM_data1] (0x00) 26; CHECK: DW_TAG_member 27; CHECK: DW_AT_type 28; CHECK: DW_AT_alignment 29; CHECK: DW_AT_data_member_location [DW_FORM_data1] (0x00) 30 31%F = type { [0 x i8], ptr, [8 x i8] } 32%"F::Nope" = type {} 33 34define internal void @_ZN2e34main17h934ff72f9a38d4bbE() unnamed_addr #0 !dbg !5 { 35start: 36 %qq = alloca %F, align 8 37 call void @llvm.dbg.declare(metadata ptr %qq, metadata !10, metadata !28), !dbg !29 38 store ptr null, ptr %qq, !dbg !29 39 ret void, !dbg !30 40} 41 42; Function Attrs: nounwind readnone 43declare void @llvm.dbg.declare(metadata, metadata, metadata) #0 44 45attributes #0 = { nounwind uwtable } 46 47!llvm.module.flags = !{!0, !1} 48!llvm.dbg.cu = !{!2} 49 50!0 = !{i32 1, !"PIE Level", i32 2} 51!1 = !{i32 2, !"Debug Info Version", i32 3} 52!2 = distinct !DICompileUnit(language: DW_LANG_Rust, file: !3, producer: "clang LLVM (rustc version 1.24.0-dev)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4) 53!3 = !DIFile(filename: "e3.rs", directory: "/home/tromey/Rust") 54!4 = !{} 55!5 = distinct !DISubprogram(name: "main", linkageName: "_ZN2e34mainE", scope: !6, file: !3, line: 2, type: !8, scopeLine: 2, flags: DIFlagPrototyped, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagMainSubprogram, isOptimized: false, unit: !2, templateParams: !4, retainedNodes: !4) 56!6 = !DINamespace(name: "e3", scope: null) 57!7 = !DIFile(filename: "<unknown>", directory: "") 58!8 = !DISubroutineType(types: !9) 59!9 = !{null} 60!10 = !DILocalVariable(name: "qq", scope: !11, file: !3, line: 3, type: !12, align: 8) 61!11 = distinct !DILexicalBlock(scope: !5, file: !3, line: 3, column: 4) 62!12 = !DICompositeType(tag: DW_TAG_structure_type, name: "F", scope: !6, file: !7, size: 128, align: 64, elements: !13, identifier: "7ce1efff6b82281ab9ceb730566e7e20") 63!13 = !{!14} 64!14 = !DICompositeType(tag: DW_TAG_variant_part, name: "", scope: !12, file: !7, size: 128, align: 64, elements: !16, identifier: "7ce1efff6b82281ab9ceb730566e7e20", discriminator: !15) 65!15 = !DIDerivedType(tag: DW_TAG_member, scope: !14, file: !7, baseType: !27, size: 64, align: 64, flags: DIFlagArtificial) 66!16 = !{!17, !24} 67!17 = !DIDerivedType(tag: DW_TAG_member, scope: !14, file: !7, baseType: !18, size: 128, align: 64) 68!18 = !DICompositeType(tag: DW_TAG_structure_type, name: "Yep", scope: !12, file: !7, size: 128, align: 64, elements: !19, identifier: "7ce1efff6b82281ab9ceb730566e7e20::Yep") 69!19 = !{!20, !22} 70!20 = !DIDerivedType(tag: DW_TAG_member, name: "__0", scope: !18, file: !7, baseType: !21, size: 8, align: 8, offset: 64) 71!21 = !DIBasicType(name: "u8", size: 8, encoding: DW_ATE_unsigned) 72!22 = !DIDerivedType(tag: DW_TAG_member, name: "__1", scope: !18, file: !7, baseType: !23, size: 64, align: 64) 73!23 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "&u8", baseType: !21, size: 64, align: 64) 74!24 = !DIDerivedType(tag: DW_TAG_member, scope: !14, file: !7, baseType: !25, size: 128, align: 64, extraData: i64 0) 75!25 = !DICompositeType(tag: DW_TAG_structure_type, name: "Nope", scope: !12, file: !7, size: 128, align: 64, elements: !4, identifier: "7ce1efff6b82281ab9ceb730566e7e20::Nope") 76!27 = !DIBasicType(name: "u64", size: 64, encoding: DW_ATE_unsigned) 77!28 = !DIExpression() 78!29 = !DILocation(line: 3, scope: !11) 79!30 = !DILocation(line: 4, scope: !5) 80