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1; Checks that DW_AT_decl_file attribute is correctly set for2; template function declaration. When using full LTO we likely3; end up having multiple CUs in a single DWARF file, and it is4; possible that we add template function declaration DIE from5; CU#1 to structure type DIE from CU#2. In such case we should6; add source line attributes on behalf of CU#2, not CU#17 8; Example source code used to generate this sample (C++)9; // File inc1.h10; struct S {11; template <typename T> static void tmpfn() {}12; };13;14; // File: inc2.h15; extern int x;16; int x;17;18; // File: foo.cpp19; #include "inc1.h"20; S s;21;22; // File: bar.cpp23; #include "inc1.h"24; #include "inc2.h"25; void f3() { S::tmpfn<int>(); }26 27; RUN: llc -filetype=obj %s -o %t28; RUN: llvm-dwarfdump %t -o - | FileCheck %s29 30; CHECK: DW_AT_linkage_name ("_ZN1S5tmpfnIiEEvv")31; CHECK-NEXT: DW_AT_name ("tmpfn<int>")32; CHECK-NEXT: DW_AT_decl_file ("{{.*}}inc1.h")33; CHECK-NEXT: DW_AT_decl_line (2)34 35source_filename = "ld-temp.o"36target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"37target triple = "x86_64-unknown-linux-gnu"38 39%struct.S = type { i8 }40 41$_ZN1S5tmpfnIiEEvv = comdat any42 43@s = dso_local global %struct.S zeroinitializer, align 1, !dbg !044@x = dso_local global i32 0, align 4, !dbg !845 46; Function Attrs: noinline optnone uwtable47define dso_local void @_Z2f3v() !dbg !21 {48 call void @_ZN1S5tmpfnIiEEvv(), !dbg !2449 ret void, !dbg !2550}51 52; Function Attrs: noinline nounwind optnone uwtable53define weak_odr dso_local void @_ZN1S5tmpfnIiEEvv() comdat align 2 !dbg !26 {54 ret void, !dbg !3055}56 57!llvm.dbg.cu = !{!2, !10}58!llvm.ident = !{!15, !15}59!llvm.module.flags = !{!16, !17, !18, !19, !20}60 61!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())62!1 = distinct !DIGlobalVariable(name: "s", scope: !2, file: !3, line: 2, type: !6, isLocal: false, isDefinition: true)63!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 9.0.0 (trunk 354767)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: None)64!3 = !DIFile(filename: "foo.cpp", directory: "/home/evgeny/work/cpp_lexer/sample2")65!4 = !{}66!5 = !{!0}67!6 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "S", file: !7, line: 1, size: 8, flags: DIFlagTypePassByValue, elements: !4, identifier: "_ZTS1S")68!7 = !DIFile(filename: "./inc1.h", directory: "/home/evgeny/work/cpp_lexer/sample2")69!8 = !DIGlobalVariableExpression(var: !9, expr: !DIExpression())70!9 = distinct !DIGlobalVariable(name: "x", scope: !10, file: !13, line: 2, type: !14, isLocal: false, isDefinition: true)71!10 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !11, producer: "clang version 9.0.0 (trunk 354767)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !12, nameTableKind: None)72!11 = !DIFile(filename: "bar.cpp", directory: "/home/evgeny/work/cpp_lexer/sample2")73!12 = !{!8}74!13 = !DIFile(filename: "./inc2.h", directory: "/home/evgeny/work/cpp_lexer/sample2")75!14 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)76!15 = !{!"clang version 9.0.0 (trunk 354767)"}77!16 = !{i32 2, !"Dwarf Version", i32 4}78!17 = !{i32 2, !"Debug Info Version", i32 3}79!18 = !{i32 1, !"wchar_size", i32 4}80!19 = !{i32 1, !"ThinLTO", i32 0}81!20 = !{i32 1, !"EnableSplitLTOUnit", i32 0}82!21 = distinct !DISubprogram(name: "f3", linkageName: "_Z2f3v", scope: !11, file: !11, line: 3, type: !22, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !10, retainedNodes: !4)83!22 = !DISubroutineType(types: !23)84!23 = !{null}85!24 = !DILocation(line: 3, column: 13, scope: !21)86!25 = !DILocation(line: 3, column: 30, scope: !21)87!26 = distinct !DISubprogram(name: "tmpfn<int>", linkageName: "_ZN1S5tmpfnIiEEvv", scope: !6, file: !7, line: 2, type: !22, scopeLine: 2, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !10, templateParams: !28, declaration: !27, retainedNodes: !4)88!27 = !DISubprogram(name: "tmpfn<int>", linkageName: "_ZN1S5tmpfnIiEEvv", scope: !6, file: !7, line: 2, type: !22, scopeLine: 2, flags: DIFlagPrototyped | DIFlagStaticMember, spFlags: 0, templateParams: !28)89!28 = !{!29}90!29 = !DITemplateTypeParameter(name: "T", type: !14)91!30 = !DILocation(line: 2, column: 46, scope: !26)92 93