1; Generate one file with all linkage names, and another with only abstract ones. 2; Then test both. 3; RUN: %llc_dwarf -accel-tables=Dwarf -dwarf-linkage-names=All -filetype=obj -o %t.All < %s 4; RUN: %llc_dwarf -accel-tables=Dwarf -dwarf-linkage-names=Abstract -filetype=obj -o %t.Abstract < %s 5; RUN: llvm-dwarfdump -debug-info -debug-names %t.All | FileCheck %s --check-prefix=ALL 6; RUN: llvm-dwarfdump -debug-info -debug-names %t.Abstract \ 7; RUN: | FileCheck %s --check-prefix=ABSTRACT --implicit-check-not=_Z1gi --implicit-check-not=_ZN1n1vE 8; RUN: llvm-dwarfdump -debug-names -verify %t.All | FileCheck --check-prefix=VERIFY %s 9; RUN: llvm-dwarfdump -debug-names -verify %t.Abstract | FileCheck --check-prefix=VERIFY %s 10 11; We should have all three linkage names in the .debug_info and .debug_names 12; ALL: .debug_info contents: 13; ALL: DW_AT_linkage_name ("_ZN1n1vE") 14; ALL: DW_AT_linkage_name ("_Z1fi") 15; ALL: DW_AT_linkage_name ("_Z1gi") 16; ALL: .debug_names contents: 17; ALL: String: {{.*}} "_Z1fi" 18; ALL: String: {{.*}} "_Z1gi" 19; ALL: String: {{.*}} "_ZN1n1vE" 20 21; Only _Z1fi should be present in both sections 22; ABSTRACT: .debug_info contents: 23; ABSTRACT: DW_AT_linkage_name ("_Z1fi") 24; ABSTRACT: .debug_names contents: 25; ABSTRACT: String: {{.*}} "_Z1fi" 26 27; There should be no verification errors for both files. 28; VERIFY: No errors. 29 30; Input generated from the following C code using 31; clang -g -O2 -S -emit-llvm 32 33; int e(int); 34; inline int f(int a) { return e(a); } 35; int g(int a) { return f(a); } 36; 37; namespace n { 38; int v; 39; } 40 41@_ZN1n1vE = dso_local local_unnamed_addr global i32 0, align 4, !dbg !0 42 43define dso_local i32 @_Z1gi(i32 %a) local_unnamed_addr !dbg !12 { 44entry: 45 call void @llvm.dbg.value(metadata i32 %a, metadata !16, metadata !DIExpression()), !dbg !17 46 call void @llvm.dbg.value(metadata i32 %a, metadata !18, metadata !DIExpression()), !dbg !21 47 %call.i = tail call i32 @_Z1ei(i32 %a), !dbg !23 48 ret i32 %call.i, !dbg !24 49} 50 51declare dso_local i32 @_Z1ei(i32) local_unnamed_addr 52 53; Function Attrs: nounwind readnone speculatable 54declare void @llvm.dbg.value(metadata, metadata, metadata) #0 55 56attributes #2 = { nounwind readnone speculatable } 57 58!llvm.dbg.cu = !{!5} 59!llvm.module.flags = !{!8, !9, !10} 60!llvm.ident = !{!11} 61 62!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 63!1 = distinct !DIGlobalVariable(name: "v", linkageName: "_ZN1n1vE", scope: !2, file: !3, line: 6, type: !4, isLocal: false, isDefinition: true) 64!2 = !DINamespace(name: "n", scope: null) 65!3 = !DIFile(filename: "/tmp/linkage-name.cc", directory: "/usr/local/google/home/labath/ll/build/dbg") 66!4 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 67!5 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 7.0.0 (trunk 331861) (llvm/trunk 331884)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !6, globals: !7) 68!6 = !{} 69!7 = !{!0} 70!8 = !{i32 2, !"Dwarf Version", i32 4} 71!9 = !{i32 2, !"Debug Info Version", i32 3} 72!10 = !{i32 1, !"wchar_size", i32 4} 73!11 = !{!"clang version 7.0.0 (trunk 331861) (llvm/trunk 331884)"} 74!12 = distinct !DISubprogram(name: "g", linkageName: "_Z1gi", scope: !3, file: !3, line: 3, type: !13, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !5, retainedNodes: !15) 75!13 = !DISubroutineType(types: !14) 76!14 = !{!4, !4} 77!15 = !{!16} 78!16 = !DILocalVariable(name: "a", arg: 1, scope: !12, file: !3, line: 3, type: !4) 79!17 = !DILocation(line: 3, column: 11, scope: !12) 80!18 = !DILocalVariable(name: "a", arg: 1, scope: !19, file: !3, line: 2, type: !4) 81!19 = distinct !DISubprogram(name: "f", linkageName: "_Z1fi", scope: !3, file: !3, line: 2, type: !13, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !5, retainedNodes: !20) 82!20 = !{!18} 83!21 = !DILocation(line: 2, column: 18, scope: !19, inlinedAt: !22) 84!22 = distinct !DILocation(line: 3, column: 23, scope: !12) 85!23 = !DILocation(line: 2, column: 30, scope: !19, inlinedAt: !22) 86!24 = !DILocation(line: 3, column: 16, scope: !12) 87