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1; RUN: llc -mtriple=x86_64 -generate-type-units -dwarf-version=5 -filetype=obj %s -o %t2; RUN: llvm-dwarfdump -debug-names %t | FileCheck %s3 4; Two structs that have different names but are structurally identical:5; namespace MyNamespace {6; struct MyStruct1 {7; char c1;8; };9; struct MyStruct2 {10; char c2;11; };12; } // namespace MyNamespace13; MyNamespace::MyStruct1 gv1;14; MyNamespace::MyStruct2 gv2;15 16; Using two TUs, this should produce DIE structures with the same offset.17; We test that accelerator table generation works with this.18 19; CHECK: String: {{.*}} "MyStruct2"20; CHECK-NEXT: Entry @ {{.*}} {21; CHECK-NEXT: Abbrev: [[ABBREV:0x.*]]22; CHECK-NEXT: Tag: DW_TAG_structure_type23; CHECK-NEXT: DW_IDX_type_unit: 0x0124; CHECK-NEXT: DW_IDX_die_offset: [[DieOffsetStruct:0x.*]]25; CHECK-NEXT: DW_IDX_parent: Entry @ [[Parent2:0x.*]]26; CHECK: String: {{.*}} "MyNamespace"27; CHECK-NEXT: Entry @ [[Parent1:0x.*]] {28; CHECK-NEXT: Abbrev: {{.*}}29; CHECK-NEXT: Tag: DW_TAG_namespace30; CHECK-NEXT: DW_IDX_type_unit: 0x0031; CHECK-NEXT: DW_IDX_die_offset: [[DieOffsetNamespace:0x.*]]32; CHECK-NEXT: DW_IDX_parent: <parent not indexed>33; CHECK-NEXT: }34; CHECK-NEXT: Entry @ [[Parent2]] {35; CHECK-NEXT: Abbrev: {{.*}}36; CHECK-NEXT: Tag: DW_TAG_namespace37; CHECK-NEXT: DW_IDX_type_unit: 0x0138; CHECK-NEXT: DW_IDX_die_offset: [[DieOffsetNamespace:0x.*]]39; CHECK-NEXT: DW_IDX_parent: <parent not indexed>40; CHECK-NEXT: }41; CHECK: String: {{.*}} "MyStruct1"42; CHECK-NEXT: Entry @ {{.*}} {43; CHECK-NEXT: Abbrev: [[ABBREV]]44; CHECK-NEXT: Tag: DW_TAG_structure_type45; CHECK-NEXT: DW_IDX_type_unit: 0x0046; CHECK-NEXT: DW_IDX_die_offset: [[DieOffsetStruct:0x.*]]47; CHECK-NEXT: DW_IDX_parent: Entry @ [[Parent1]]48 49 50%"struct.MyNamespace::MyStruct1" = type { i8 }51%"struct.MyNamespace::MyStruct2" = type { i8 }52 53@gv1 = dso_local global %"struct.MyNamespace::MyStruct1" zeroinitializer, align 1, !dbg !054@gv2 = dso_local global %"struct.MyNamespace::MyStruct2" zeroinitializer, align 1, !dbg !555 56!llvm.dbg.cu = !{!2}57!llvm.module.flags = !{!15, !16, !17, !18, !19}58!llvm.ident = !{!20}59 60!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())61!1 = distinct !DIGlobalVariable(name: "gv1", scope: !2, file: !3, line: 10, type: !12, isLocal: false, isDefinition: true)62!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !3, producer: "blah", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, globals: !4, splitDebugInlining: false)63!3 = !DIFile(filename: "two_tus.cpp", directory: "blah", checksumkind: CSK_MD5, checksum: "69acf04f32811fe7fd35449b58c3f5b1")64!4 = !{!0, !5}65!5 = !DIGlobalVariableExpression(var: !6, expr: !DIExpression())66!6 = distinct !DIGlobalVariable(name: "gv2", scope: !2, file: !3, line: 11, type: !7, isLocal: false, isDefinition: true)67!7 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "MyStruct2", scope: !8, file: !3, line: 5, size: 8, flags: DIFlagTypePassByValue, elements: !9, identifier: "_ZTSN11MyNamespace9MyStruct2E")68!8 = !DINamespace(name: "MyNamespace", scope: null)69!9 = !{!10}70!10 = !DIDerivedType(tag: DW_TAG_member, name: "c2", scope: !7, file: !3, line: 6, baseType: !11, size: 8)71!11 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)72!12 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "MyStruct1", scope: !8, file: !3, line: 2, size: 8, flags: DIFlagTypePassByValue, elements: !13, identifier: "_ZTSN11MyNamespace9MyStruct1E")73!13 = !{!14}74!14 = !DIDerivedType(tag: DW_TAG_member, name: "c1", scope: !12, file: !3, line: 3, baseType: !11, size: 8)75!15 = !{i32 7, !"Dwarf Version", i32 5}76!16 = !{i32 2, !"Debug Info Version", i32 3}77!17 = !{i32 1, !"wchar_size", i32 4}78!18 = !{i32 7, !"uwtable", i32 2}79!19 = !{i32 7, !"frame-pointer", i32 2}80!20 = !{!"blah"}81