1; REQUIRES: object-emission 2 3; RUN: %llc_dwarf < %s -filetype=obj | llvm-dwarfdump -debug-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: debug_line[{{.*}}] 12; CHECK-NEXT: Line table prologue: 13; CHECK-NOT: include_directories 14; CHECK: file_names[ 1] 15; CHECK: name: "a.cpp" 16; CHECK-NEXT: dir_index: 0 17; CHECK-NOT: file_names 18 19; CHECK: debug_line[{{.*}}] 20; CHECK-NEXT: Line table prologue: 21; CHECK-NOT: include_directories 22; CHECK: file_names[ 1] 23; CHECK: name: "b.cpp" 24; CHECK-NEXT: dir_index: 0 25; CHECK-NOT: file_names 26 27; However, if a single line table is emitted and shared between CUs, the 28; comp_dir is ambiguous and relying on it would lead to different path 29; interpretations depending on which CU lead to the table - so ensure that 30; full paths are always emitted in this case, never comp_dir relative. 31 32; ASM: .file 1 "/tmp/dbginfo/a{{[/\\]+}}a.cpp" 33; ASM: .file 2 "/tmp/dbginfo/b{{[/\\]+}}b.cpp" 34 35; Generated from the following source compiled to bitcode from within their 36; respective directories (with debug info) and linked together with llvm-link 37 38; a/a.cpp 39; void func() { 40; } 41 42; b/b.cpp 43; void func(); 44; int main() { 45; func(); 46; } 47 48; Function Attrs: nounwind uwtable 49define void @_Z4funcv() #0 !dbg !4 { 50entry: 51 ret void, !dbg !19 52} 53 54; Function Attrs: uwtable 55define i32 @main() #1 !dbg !11 { 56entry: 57 call void @_Z4funcv(), !dbg !20 58 ret i32 0, !dbg !21 59} 60 61attributes #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" } 62attributes #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" } 63 64!llvm.dbg.cu = !{!0, !8} 65!llvm.module.flags = !{!16, !17} 66!llvm.ident = !{!18, !18} 67 68!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2) 69!1 = !DIFile(filename: "a.cpp", directory: "/tmp/dbginfo/a") 70!2 = !{} 71!4 = distinct !DISubprogram(name: "func", linkageName: "_Z4funcv", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, retainedNodes: !2) 72!5 = !DIFile(filename: "a.cpp", directory: "/tmp/dbginfo/a") 73!6 = !DISubroutineType(types: !7) 74!7 = !{null} 75!8 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: FullDebug, file: !9, enums: !2, retainedTypes: !2, globals: !2, imports: !2) 76!9 = !DIFile(filename: "b.cpp", directory: "/tmp/dbginfo/b") 77!11 = distinct !DISubprogram(name: "main", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !8, scopeLine: 2, file: !9, scope: !12, type: !13, retainedNodes: !2) 78!12 = !DIFile(filename: "b.cpp", directory: "/tmp/dbginfo/b") 79!13 = !DISubroutineType(types: !14) 80!14 = !{!15} 81!15 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 82!16 = !{i32 2, !"Dwarf Version", i32 4} 83!17 = !{i32 1, !"Debug Info Version", i32 3} 84!18 = !{!"clang version 3.5.0 "} 85!19 = !DILocation(line: 2, scope: !4) 86!20 = !DILocation(line: 3, scope: !11) 87!21 = !DILocation(line: 4, scope: !11) 88 89