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1; RUN: %llc_dwarf -O0 -filetype=obj -dwarf-linkage-names=Abstract < %s | llvm-dwarfdump -debug-info - > %t2; RUN: FileCheck %s -check-prefix=ONENAME < %t3; RUN: FileCheck %s -check-prefix=REF < %t 4; Verify tuning for SCE gets us Abstract only.5; RUN: %llc_dwarf -O0 -filetype=obj -debugger-tune=sce < %s | llvm-dwarfdump -debug-info - > %t6; RUN: FileCheck %s -check-prefix=ONENAME < %t7; RUN: FileCheck %s -check-prefix=REF < %t 8 9; Verify that the only linkage-name present is the abstract origin of the10; inlined subprogram.11 12; IR generated from clang -O0 with:13; void f1();14; __attribute__((always_inline)) void f2() { 15; f1();16; }17; void f3() {18; f2();19; }20;21; struct F4 {22; __attribute__((always_inline)) void f5();23; };24; void F4::f5() {25; f1();26; }27; void f6() {28; F4::f5();29; }30 31; Show that the only linkage names are for the inlined functions,32; because those are the ones with an abstract origin.33; ONENAME-NOT: {{DW_AT(_MIPS)?_linkage_name}}34; ONENAME: {{DW_AT(_MIPS)?_linkage_name}} ("_Z2f2v")35; ONENAME-NOT: {{DW_AT(_MIPS)?_linkage_name}}36; ONENAME: {{DW_AT(_MIPS)?_linkage_name}} ("_ZN2F42f5Ev")37; ONENAME-NOT: {{DW_AT(_MIPS)?_linkage_name}}38 39; For f2() we see the definition pointing to an abstract origin DIE,40; which in turn is where the linkage_name is; and then there's41; an inlined_subroutine pointing back to the abstract origin.42; The order of these DIEs is not important of course, just the links.43; REF: DW_TAG_subprogram44; REF-NOT: {{DW_TAG|NULL}}45; REF: DW_AT_abstract_origin ([[F2:0x.*]] "_Z2f2v")46; REF: [[F2]]: DW_TAG_subprogram47; REF-NEXT: linkage_name ("_Z2f2v")48; REF: DW_TAG_inlined_subroutine49; REF-NOT: {{DW_TAG|NULL}}50; REF: DW_AT_abstract_origin ([[F2]]51 52; For F4::f5(), first we see the in-class declaration,53; then the definition, abstract origin, and the inlined_subroutine.54; REF: DW_TAG_structure_type55; REF-NEXT: DW_AT_name ("F4")56; REF-NOT: {{DW_TAG|NULL}}57; REF: [[F5_DECL:0x.*]]: DW_TAG_subprogram58; REF-NEXT: DW_AT_name ("f5")59; REF: DW_TAG_subprogram60; REF-NOT: {{DW_TAG|NULL}}61; REF: DW_AT_abstract_origin ([[F5_ABS:0x.*]] "_ZN2F42f5Ev")62; REF: [[F5_ABS]]: DW_TAG_subprogram63; REF-NOT: {{DW_TAG|NULL}}64; REF: linkage_name ("_ZN2F42f5Ev")65; REF-NEXT: DW_AT_specification ([[F5_DECL]]66; REF: DW_TAG_inlined_subroutine67; REF-NOT: {{DW_TAG|NULL}}68; REF: DW_AT_abstract_origin ([[F5_ABS]]69 70 71; Function Attrs: alwaysinline uwtable72define void @_Z2f2v() #0 !dbg !6 {73entry:74 call void @_Z2f1v(), !dbg !975 ret void, !dbg !1076}77 78declare void @_Z2f1v()79 80; Function Attrs: uwtable81define void @_Z2f3v() !dbg !11 {82entry:83 call void @_Z2f1v(), !dbg !1284 ret void, !dbg !1485}86 87; Function Attrs: alwaysinline uwtable88define void @_ZN2F42f5Ev() #0 align 2 !dbg !15 {89entry:90 call void @_Z2f1v(), !dbg !1991 ret void, !dbg !2092}93 94; Function Attrs: uwtable95define void @_Z2f6v() !dbg !21 {96entry:97 call void @_Z2f1v(), !dbg !2298 ret void, !dbg !2499}100 101attributes #0 = { alwaysinline }102 103!llvm.dbg.cu = !{!0}104!llvm.module.flags = !{!3, !4}105!llvm.ident = !{!5}106 107!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 4.0.0 (trunk 288231)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)108!1 = !DIFile(filename: "linkage-name-abstract-static.cpp", directory: "/home/probinson/projects/scratch")109!2 = !{}110!3 = !{i32 2, !"Dwarf Version", i32 4}111!4 = !{i32 2, !"Debug Info Version", i32 3}112!5 = !{!"clang version 4.0.0 (trunk 288231)"}113!6 = distinct !DISubprogram(name: "f2", linkageName: "_Z2f2v", scope: !1, file: !1, line: 2, type: !7, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)114!7 = !DISubroutineType(types: !8)115!8 = !{null}116!9 = !DILocation(line: 3, column: 3, scope: !6)117!10 = !DILocation(line: 4, column: 1, scope: !6)118!11 = distinct !DISubprogram(name: "f3", linkageName: "_Z2f3v", scope: !1, file: !1, line: 5, type: !7, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)119!12 = !DILocation(line: 3, column: 3, scope: !6, inlinedAt: !13)120!13 = distinct !DILocation(line: 6, column: 3, scope: !11)121!14 = !DILocation(line: 7, column: 1, scope: !11)122!15 = distinct !DISubprogram(name: "f5", linkageName: "_ZN2F42f5Ev", scope: !16, file: !1, line: 12, type: !7, isLocal: false, isDefinition: true, scopeLine: 12, flags: DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !18, retainedNodes: !2)123!16 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "F4", file: !1, line: 9, size: 8, elements: !17, identifier: "_ZTS2F4")124!17 = !{!18}125!18 = !DISubprogram(name: "f5", linkageName: "_ZN2F42f5Ev", scope: !16, file: !1, line: 10, type: !7, isLocal: false, isDefinition: false, scopeLine: 10, flags: DIFlagPrototyped, isOptimized: false)126!19 = !DILocation(line: 13, column: 3, scope: !15)127!20 = !DILocation(line: 14, column: 1, scope: !15)128!21 = distinct !DISubprogram(name: "f6", linkageName: "_Z2f6v", scope: !1, file: !1, line: 15, type: !7, isLocal: false, isDefinition: true, scopeLine: 15, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)129!22 = !DILocation(line: 13, column: 3, scope: !15, inlinedAt: !23)130!23 = distinct !DILocation(line: 16, column: 3, scope: !21)131!24 = !DILocation(line: 17, column: 1, scope: !21)132