1*55321d82SHsiangkai Wang; Test unreachable llvm.dbg.label 2*55321d82SHsiangkai Wang; 3*55321d82SHsiangkai Wang; RUN: llc -filetype=obj -split-dwarf-file debug.dwo -mtriple=x86_64-unknown-linux-gnu -o - %s | llvm-dwarfdump -v - | FileCheck %s 4*55321d82SHsiangkai Wang; 5*55321d82SHsiangkai Wang; CHECK: .debug_info.dwo contents: 6*55321d82SHsiangkai Wang; CHECK: DW_TAG_label 7*55321d82SHsiangkai Wang; CHECK-NEXT: DW_AT_name {{.*}}"done" 8*55321d82SHsiangkai Wang; CHECK-NOT: {{DW_TAG|NULL}} 9*55321d82SHsiangkai Wang; CHECK: DW_AT_low_pc 10*55321d82SHsiangkai Wang; CHECK: DW_TAG_label 11*55321d82SHsiangkai Wang; CHECK-NEXT: DW_AT_name {{.*}}"removed" 12*55321d82SHsiangkai Wang; CHECK-NOT: DW_AT_low_pc 13*55321d82SHsiangkai Wangsource_filename = "debug-label-unreached.c" 14*55321d82SHsiangkai Wang 15*55321d82SHsiangkai Wangdefine dso_local i32 @foo(i32 %a, i32 %b) !dbg !8 { 16*55321d82SHsiangkai Wangentry: 17*55321d82SHsiangkai Wang %sum = add nsw i32 %a, %b, !dbg !12 18*55321d82SHsiangkai Wang call void @llvm.dbg.label(metadata !11), !dbg !12 19*55321d82SHsiangkai Wang ret i32 %sum, !dbg !13 20*55321d82SHsiangkai Wang} 21*55321d82SHsiangkai Wang 22*55321d82SHsiangkai Wangdeclare void @llvm.dbg.label(metadata) 23*55321d82SHsiangkai Wang 24*55321d82SHsiangkai Wang!llvm.dbg.cu = !{!0} 25*55321d82SHsiangkai Wang!llvm.module.flags = !{!4} 26*55321d82SHsiangkai Wang 27*55321d82SHsiangkai Wang!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, isOptimized: true, emissionKind: FullDebug, enums: !2) 28*55321d82SHsiangkai Wang!1 = !DIFile(filename: "debug-label-unreached.c", directory: "./") 29*55321d82SHsiangkai Wang!2 = !{} 30*55321d82SHsiangkai Wang!4 = !{i32 2, !"Debug Info Version", i32 3} 31*55321d82SHsiangkai Wang!5 = !DISubroutineType(types: !6) 32*55321d82SHsiangkai Wang!6 = !{!7} 33*55321d82SHsiangkai Wang!7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 34*55321d82SHsiangkai Wang!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*55321d82SHsiangkai Wang!9 = !{!10, !11} 36*55321d82SHsiangkai Wang!10 = !DILabel(scope: !8, name: "removed", file: !1, line: 11) 37*55321d82SHsiangkai Wang!11 = !DILabel(scope: !8, name: "done", file: !1, line: 13) 38*55321d82SHsiangkai Wang!12 = !DILocation(line: 13, column: 1, scope: !8) 39*55321d82SHsiangkai Wang!13 = !DILocation(line: 14, column: 5, scope: !8) 40