1; RUN: llc -mtriple=x86_64 -generate-type-units -dwarf-version=5 -filetype=obj %s -o %t 2; RUN: llvm-dwarfdump -debug-names %t | FileCheck %s 3 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 MyNamespace 13; 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_type 23; CHECK-NEXT: DW_IDX_type_unit: 0x01 24; 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_namespace 30; CHECK-NEXT: DW_IDX_type_unit: 0x00 31; 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_namespace 37; CHECK-NEXT: DW_IDX_type_unit: 0x01 38; 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_type 45; CHECK-NEXT: DW_IDX_type_unit: 0x00 46; 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 !0 54@gv2 = dso_local global %"struct.MyNamespace::MyStruct2" zeroinitializer, align 1, !dbg !5 55 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