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 49 define void @_Z4funcv() #0 !dbg !4 { 50 entry: 51 ret void, !dbg !19 52 } 53 54 ; Function Attrs: uwtable 55 define i32 @main() #1 !dbg !11 { 56 entry: 57 call void @_Z4funcv(), !dbg !20 58 ret i32 0, !dbg !21 59 } 60 61 attributes #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" } 62 attributes #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
