| ; Test unreachable llvm.dbg.label |
| ; |
| ; RUN: llc -filetype=obj -split-dwarf-file debug.dwo -mtriple=x86_64-unknown-linux-gnu -o - %s | llvm-dwarfdump -v - | FileCheck %s |
| ; |
| ; CHECK: .debug_info.dwo contents: |
| ; CHECK: DW_TAG_label |
| ; CHECK-NEXT: DW_AT_name {{.*}}"done" |
| ; CHECK-NOT: {{DW_TAG|NULL}} |
| ; CHECK: DW_AT_low_pc |
| ; CHECK: DW_TAG_label |
| ; CHECK-NEXT: DW_AT_name {{.*}}"removed" |
| ; CHECK-NOT: DW_AT_low_pc |
| source_filename = "debug-label-unreached.c" |
| |
| define dso_local i32 @foo(i32 %a, i32 %b) !dbg !8 { |
| entry: |
| %sum = add nsw i32 %a, %b, !dbg !12 |
| call void @llvm.dbg.label(metadata !11), !dbg !12 |
| ret i32 %sum, !dbg !13 |
| } |
| |
| declare void @llvm.dbg.label(metadata) |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!4} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, isOptimized: true, emissionKind: FullDebug, enums: !2) |
| !1 = !DIFile(filename: "debug-label-unreached.c", directory: "./") |
| !2 = !{} |
| !4 = !{i32 2, !"Debug Info Version", i32 3} |
| !5 = !DISubroutineType(types: !6) |
| !6 = !{!7} |
| !7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !8 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 8, type: !5, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !9) |
| !9 = !{!10, !11} |
| !10 = !DILabel(scope: !8, name: "removed", file: !1, line: 11) |
| !11 = !DILabel(scope: !8, name: "done", file: !1, line: 13) |
| !12 = !DILocation(line: 13, column: 1, scope: !8) |
| !13 = !DILocation(line: 14, column: 5, scope: !8) |
