1 ; REQUIRES: object-emission 2 3 ; RUN: %llc_dwarf -O0 -filetype=obj < %s > %t 4 ; RUN: llvm-dwarfdump -v -debug-info %t | FileCheck %s 5 6 ; Check for a variant part that has two members, one of which has a 7 ; discriminant value. 8 9 ; CHECK: DW_TAG_variant_part 10 ; CHECK-NOT: TAG 11 ; CHECK: DW_AT_discr [DW_FORM_ref4] (cu + {{0x[0-9a-fA-F]+}} => {[[OFFSET:0x[0-9a-fA-F]+]]}) 12 ; CHECK-NOT: TAG 13 ; CHECK: [[OFFSET]]: DW_TAG_member 14 ; CHECK: DW_AT_type 15 ; CHECK: DW_AT_alignment 16 ; CHECK: DW_AT_data_member_location [DW_FORM_data1] (0x00) 17 ; CHECK: DW_AT_artificial [DW_FORM_flag_present] (true) 18 ; CHECK: DW_TAG_variant 19 ; CHECK: DW_TAG_member 20 ; CHECK: DW_AT_type 21 ; CHECK: DW_AT_alignment 22 ; CHECK: DW_AT_data_member_location [DW_FORM_data1] (0x00) 23 ; CHECK: DW_TAG_variant 24 ; CHECK: DW_AT_discr_value [DW_FORM_data1] (0x00) 25 ; CHECK: DW_TAG_member 26 ; CHECK: DW_AT_type 27 ; CHECK: DW_AT_alignment 28 ; CHECK: DW_AT_data_member_location [DW_FORM_data1] (0x00) 29 30 %F = type { [0 x i8], {}*, [8 x i8] } 31 %"F::Nope" = type {} 32 33 define internal void @_ZN2e34main17h934ff72f9a38d4bbE() unnamed_addr #0 !dbg !5 { 34 start: 35 %qq = alloca %F, align 8 36 call void @llvm.dbg.declare(metadata %F* %qq, metadata !10, metadata !28), !dbg !29 37 %0 = bitcast %F* %qq to {}**, !dbg !29 38 store {}* null, {}** %0, !dbg !29 39 %1 = bitcast %F* %qq to %"F::Nope"*, !dbg !29 40 ret void, !dbg !30 41 } 42 43 ; Function Attrs: nounwind readnone 44 declare void @llvm.dbg.declare(metadata, metadata, metadata) #0 45 46 attributes #0 = { nounwind uwtable } 47 48 !llvm.module.flags = !{!0, !1} 49 !llvm.dbg.cu = !{!2} 50 51 !0 = !{i32 1, !"PIE Level", i32 2} 52 !1 = !{i32 2, !"Debug Info Version", i32 3} 53 !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) 54 !3 = !DIFile(filename: "e3.rs", directory: "/home/tromey/Rust") 55 !4 = !{} 56 !5 = distinct !DISubprogram(name: "main", linkageName: "_ZN2e34mainE", scope: !6, file: !3, line: 2, type: !8, isLocal: true, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped | DIFlagMainSubprogram, isOptimized: false, unit: !2, templateParams: !4, retainedNodes: !4) 57 !6 = !DINamespace(name: "e3", scope: null) 58 !7 = !DIFile(filename: "<unknown>", directory: "") 59 !8 = !DISubroutineType(types: !9) 60 !9 = !{null} 61 !10 = !DILocalVariable(name: "qq", scope: !11, file: !3, line: 3, type: !12, align: 8) 62 !11 = distinct !DILexicalBlock(scope: !5, file: !3, line: 3, column: 4) 63 !12 = !DICompositeType(tag: DW_TAG_structure_type, name: "F", scope: !6, file: !7, size: 128, align: 64, elements: !13, identifier: "7ce1efff6b82281ab9ceb730566e7e20") 64 !13 = !{!14} 65 !14 = !DICompositeType(tag: DW_TAG_variant_part, name: "", scope: !12, file: !7, size: 128, align: 64, elements: !16, identifier: "7ce1efff6b82281ab9ceb730566e7e20", discriminator: !15) 66 !15 = !DIDerivedType(tag: DW_TAG_member, scope: !14, file: !7, baseType: !27, size: 64, align: 64, flags: DIFlagArtificial) 67 !16 = !{!17, !24} 68 !17 = !DIDerivedType(tag: DW_TAG_member, scope: !14, file: !7, baseType: !18, size: 128, align: 64) 69 !18 = !DICompositeType(tag: DW_TAG_structure_type, name: "Yep", scope: !12, file: !7, size: 128, align: 64, elements: !19, identifier: "7ce1efff6b82281ab9ceb730566e7e20::Yep") 70 !19 = !{!20, !22} 71 !20 = !DIDerivedType(tag: DW_TAG_member, name: "__0", scope: !18, file: !7, baseType: !21, size: 8, align: 8, offset: 64) 72 !21 = !DIBasicType(name: "u8", size: 8, encoding: DW_ATE_unsigned) 73 !22 = !DIDerivedType(tag: DW_TAG_member, name: "__1", scope: !18, file: !7, baseType: !23, size: 64, align: 64) 74 !23 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "&u8", baseType: !21, size: 64, align: 64) 75 !24 = !DIDerivedType(tag: DW_TAG_member, scope: !14, file: !7, baseType: !25, size: 128, align: 64, extraData: i64 0) 76 !25 = !DICompositeType(tag: DW_TAG_structure_type, name: "Nope", scope: !12, file: !7, size: 128, align: 64, elements: !4, identifier: "7ce1efff6b82281ab9ceb730566e7e20::Nope") 77 !27 = !DIBasicType(name: "u64", size: 64, encoding: DW_ATE_unsigned) 78 !28 = !DIExpression() 79 !29 = !DILocation(line: 3, scope: !11) 80 !30 = !DILocation(line: 4, scope: !5) 81
