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1; RUN: llc %s --filetype=obj -o - -dwarf-linkage-names=Abstract -add-linkage-names-to-declaration-call-origins=false \2; RUN: | llvm-dwarfdump - | FileCheck %s --check-prefixes=COMMON,DISABLE --implicit-check-not=DW_AT_linkage_name3; RUN: llc %s --filetype=obj -o - -dwarf-linkage-names=Abstract -add-linkage-names-to-declaration-call-origins=true \4; RUN: | llvm-dwarfdump - | FileCheck %s --check-prefixes=COMMON,ENABLE --implicit-check-not=DW_AT_linkage_name5 6;; Check that -add-linkage-names-to-declaration-call-origins controls whether7;; linkage names are added to declarations referenced by DW_AT_call_origin8;; attributes.9;;10;; $ cat test.cpp11;; void a();12;; __attribute__((optnone))13;; void b() {}14;; void c();15;; extern "C" {16;; void d();17;; }18;;19;; void e() {20;; a(); //< Reference declaration DIE (add linkage name).21;; b(); //< Reference definition DIE (don't add linkage name).22;; c(); //< Reference definition DIE (don't add linkage name).23;; d(); //< Reference declaration DIE, but there's no linkage name.24;; }25;;26;; __attribute__((optnone))27;; void c() {}28;; $ clang++ -emit-llvm -S -O1 -g29 30; COMMON: DW_TAG_call_site31; ENABLE-NEXT: DW_AT_call_origin (0x[[a:[a-z0-9]+]] "_Z1av")32; DISABLE-NEXT: DW_AT_call_origin (0x[[a:[a-z0-9]+]] "a")33; COMMON: DW_TAG_call_site34; COMMON-NEXT: DW_AT_call_origin (0x[[b:[a-z0-9]+]] "b")35; COMMON: DW_TAG_call_site36; COMMON-NEXT: DW_AT_call_origin (0x[[c:[a-z0-9]+]] "c")37; COMMON: DW_TAG_call_site38; COMMON-NEXT: DW_AT_call_origin (0x[[d:[a-z0-9]+]] "d")39 40; COMMON: 0x[[a]]: DW_TAG_subprogram41; COMMON: DW_AT_name ("a")42; ENABLE: DW_AT_linkage_name ("_Z1av")43; COMMON: 0x[[b]]: DW_TAG_subprogram44; COMMON: DW_AT_name ("b")45; COMMON: 0x[[c]]: DW_TAG_subprogram46; COMMON: DW_AT_name ("c")47; COMMON: 0x[[d]]: DW_TAG_subprogram48; COMMON: DW_AT_name ("d")49 50target triple = "x86_64-unknown-linux-gnu"51 52define dso_local void @_Z1ev() local_unnamed_addr !dbg !13 {53entry:54 tail call void @_Z1av(), !dbg !1455 tail call void @_Z1bv(), !dbg !1556 tail call void @_Z1cv(), !dbg !1657 tail call void @d(), !dbg !1758 ret void, !dbg !1859}60 61define dso_local void @_Z1bv() local_unnamed_addr !dbg !9 {62entry:63 ret void, !dbg !1264}65 66declare !dbg !19 void @_Z1av() local_unnamed_addr67 68define dso_local void @_Z1cv() local_unnamed_addr !dbg !20 {69entry:70 ret void, !dbg !2171}72declare !dbg !22 void @d() local_unnamed_addr73 74!llvm.dbg.cu = !{!0}75!llvm.module.flags = !{!2, !3}76!llvm.ident = !{!8}77 78!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 19.0.0git", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)79!1 = !DIFile(filename: "test.cpp", directory: "/")80!2 = !{i32 7, !"Dwarf Version", i32 5}81!3 = !{i32 2, !"Debug Info Version", i32 3}82!8 = !{!"clang version 19.0.0"}83!9 = distinct !DISubprogram(name: "b", linkageName: "_Z1bv", scope: !1, file: !1, line: 3, type: !10, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0)84!10 = !DISubroutineType(types: !11)85!11 = !{null}86!12 = !DILocation(line: 3, column: 11, scope: !9)87!13 = distinct !DISubprogram(name: "e", linkageName: "_Z1ev", scope: !1, file: !1, line: 9, type: !10, scopeLine: 9, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0)88!14 = !DILocation(line: 10, column: 3, scope: !13)89!15 = !DILocation(line: 11, column: 3, scope: !13)90!16 = !DILocation(line: 12, column: 3, scope: !13)91!17 = !DILocation(line: 13, column: 3, scope: !13)92!18 = !DILocation(line: 14, column: 1, scope: !13)93!19 = !DISubprogram(name: "a", linkageName: "_Z1av", scope: !1, file: !1, line: 1, type: !10, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized)94!20 = distinct !DISubprogram(name: "c", linkageName: "_Z1cv", scope: !1, file: !1, line: 17, type: !10, scopeLine: 17, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0)95!21 = !DILocation(line: 17, column: 11, scope: !20)96!22 = !DISubprogram(name: "d", scope: !1, file: !1, line: 6, type: !10, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized)97