1 ; REQUIRES: object-emission
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
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'
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
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
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.
32 ; ASM: .file 1 "/tmp/dbginfo/a{{[/\\]+}}a.cpp"
33 ; ASM: .file 2 "/tmp/dbginfo/b{{[/\\]+}}b.cpp"
35 ; Generated from the following source compiled to bitcode from within their
36 ; respective directories (with debug info) and linked together with llvm-link
48 ; Function Attrs: nounwind uwtable
49 define void @_Z4funcv() #0 !dbg !4 {
54 ; Function Attrs: uwtable
55 define i32 @main() #1 !dbg !11 {
57 call void @_Z4funcv(), !dbg !20
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" }
64 !llvm.dbg.cu = !{!0, !8}
65 !llvm.module.flags = !{!16, !17}
66 !llvm.ident = !{!18, !18}
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")
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)
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)
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)