1; REQUIRES: object-emission 2 3; RUN: %llc_dwarf < %s -filetype=obj | llvm-dwarfdump -debug-dump=line - | FileCheck %s 4; RUN: %llc_dwarf < %s -filetype=asm | FileCheck --check-prefix=ASM %s 5 6; If multiple line tables are emitted, one per CU, those line tables can 7; unambiguously rely on the comp_dir of their owning CU and use directory '0' 8; to refer to it. 9 10; CHECK: .debug_line contents: 11; CHECK-NEXT: Line table prologue: 12; CHECK-NOT: include_directories 13; CHECK: file_names[ 1] 0 {{.*}} a.cpp 14; CHECK-NOT: file_names 15 16; CHECK: Line table prologue: 17; CHECK-NOT: include_directories 18; CHECK: file_names[ 1] 0 {{.*}} b.cpp 19; CHECK-NOT: file_names 20 21; However, if a single line table is emitted and shared between CUs, the 22; comp_dir is ambiguous and relying on it would lead to different path 23; interpretations depending on which CU lead to the table - so ensure that 24; full paths are always emitted in this case, never comp_dir relative. 25 26; ASM: .file 1 "/tmp/dbginfo/a{{[/\\]+}}a.cpp" 27; ASM: .file 2 "/tmp/dbginfo/b{{[/\\]+}}b.cpp" 28 29; Generated from the following source compiled to bitcode from within their 30; respective directories (with debug info) and linked together with llvm-link 31 32; a/a.cpp 33; void func() { 34; } 35 36; b/b.cpp 37; void func(); 38; int main() { 39; func(); 40; } 41 42; Function Attrs: nounwind uwtable 43define void @_Z4funcv() #0 !dbg !4 { 44entry: 45 ret void, !dbg !19 46} 47 48; Function Attrs: uwtable 49define i32 @main() #1 !dbg !11 { 50entry: 51 call void @_Z4funcv(), !dbg !20 52 ret i32 0, !dbg !21 53} 54 55attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } 56attributes #1 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } 57 58!llvm.dbg.cu = !{!0, !8} 59!llvm.module.flags = !{!16, !17} 60!llvm.ident = !{!18, !18} 61 62!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2) 63!1 = !DIFile(filename: "a.cpp", directory: "/tmp/dbginfo/a") 64!2 = !{} 65!3 = !{!4} 66!4 = distinct !DISubprogram(name: "func", linkageName: "_Z4funcv", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, variables: !2) 67!5 = !DIFile(filename: "a.cpp", directory: "/tmp/dbginfo/a") 68!6 = !DISubroutineType(types: !7) 69!7 = !{null} 70!8 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: 1, file: !9, enums: !2, retainedTypes: !2, subprograms: !10, globals: !2, imports: !2) 71!9 = !DIFile(filename: "b.cpp", directory: "/tmp/dbginfo/b") 72!10 = !{!11} 73!11 = distinct !DISubprogram(name: "main", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !9, scope: !12, type: !13, variables: !2) 74!12 = !DIFile(filename: "b.cpp", directory: "/tmp/dbginfo/b") 75!13 = !DISubroutineType(types: !14) 76!14 = !{!15} 77!15 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 78!16 = !{i32 2, !"Dwarf Version", i32 4} 79!17 = !{i32 1, !"Debug Info Version", i32 3} 80!18 = !{!"clang version 3.5.0 "} 81!19 = !DILocation(line: 2, scope: !4) 82!20 = !DILocation(line: 3, scope: !11) 83!21 = !DILocation(line: 4, scope: !11) 84 85