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1; Test unreachable llvm.dbg.label2;3; RUN: llc -filetype=obj -split-dwarf-file debug.dwo -mtriple=x86_64-unknown-linux-gnu -o - %s | llvm-dwarfdump -v - | FileCheck %s4;5; CHECK: .debug_info.dwo contents:6; CHECK: DW_TAG_label7; CHECK-NEXT: DW_AT_name {{.*}}"done"8; CHECK-NOT: {{DW_TAG|NULL}}9; CHECK: DW_AT_low_pc10; CHECK: DW_TAG_label11; CHECK-NEXT: DW_AT_name {{.*}}"removed"12; CHECK-NOT: DW_AT_low_pc13source_filename = "debug-label-unreached.c"14 15define dso_local i32 @foo(i32 %a, i32 %b) !dbg !8 {16entry:17 %sum = add nsw i32 %a, %b, !dbg !1218 call void @llvm.dbg.label(metadata !11), !dbg !1219 ret i32 %sum, !dbg !1320}21 22declare void @llvm.dbg.label(metadata)23 24!llvm.dbg.cu = !{!0}25!llvm.module.flags = !{!4}26 27!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, isOptimized: true, emissionKind: FullDebug, enums: !2)28!1 = !DIFile(filename: "debug-label-unreached.c", directory: "./")29!2 = !{}30!4 = !{i32 2, !"Debug Info Version", i32 3}31!5 = !DISubroutineType(types: !6)32!6 = !{!7}33!7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)34!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)35!9 = !{!10, !11}36!10 = !DILabel(scope: !8, name: "removed", file: !1, line: 11)37!11 = !DILabel(scope: !8, name: "done", file: !1, line: 13)38!12 = !DILocation(line: 13, column: 1, scope: !8)39!13 = !DILocation(line: 14, column: 5, scope: !8)40