1 ; RUN: llc -filetype=obj -use-unknown-locations=Enable -mtriple=x86_64-unknown-linux %s -o %t
2 ; RUN: llvm-dwarfdump -debug-line %t | FileCheck %s
4 define void @_Z3bazv() !dbg !6 {
5 call void @_Z3foov(), !dbg !9
6 call void @_Z3foov() ; no !dbg, so will be marked as line 0
10 declare void @_Z3foov()
13 !llvm.module.flags = !{!3, !4}
16 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.9.0 (trunk 267219)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
17 !1 = !DIFile(filename: "test.cc", directory: ".")
19 !3 = !{i32 2, !"Dwarf Version", i32 4}
20 !4 = !{i32 2, !"Debug Info Version", i32 3}
21 !5 = !{!"clang version 3.9.0 (trunk 267219)"}
22 !6 = distinct !DISubprogram(name: "baz", linkageName: "_Z3bazv", scope: !1, file: !1, line: 3, type: !7, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
23 !7 = !DISubroutineType(types: !8)
25 !9 = !DILocation(line: 4, column: 3, scope: !10)
26 !10 = !DILexicalBlockFile(scope: !6, file: !1, discriminator: 1)
27 !11 = !DILocation(line: 6, column: 1, scope: !6)
29 ; Look at the lengths. We can't verify the line-number-program size
30 ; directly, but the difference in the two lengths should not change
32 ; CHECK: total_length: 0x00000044
33 ; CHECK: prologue_length: 0x0000001f
35 ; Verify that we see a line entry with a discriminator, and the next entry
36 ; has line 0 and no discriminator.
37 ; line column file ISA discriminator
39 ; CHECK-NEXT: 0 3 1 0 0