1; RUN: llc -O0 -filetype=obj -o - %s | llvm-dwarfdump -v - | FileCheck %s 2; 3; CHECK: .debug_info contents: 4; CHECK: DW_TAG_label 5; CHECK-NEXT: DW_AT_name {{.*}}"top" 6; CHECK-NEXT: DW_AT_decl_file [DW_FORM_data1] {{.*}}debug-label.c 7; CHECK-NEXT: DW_AT_decl_line [DW_FORM_data1] {{.*}}4 8; CHECK-NEXT: DW_AT_low_pc [DW_FORM_addr] {{.*}}{{0x[0-9a-f]+}} 9; CHECK: DW_TAG_label 10; CHECK-NEXT: DW_AT_name {{.*}}"done" 11; CHECK-NEXT: DW_AT_decl_file [DW_FORM_data1] {{.*}}debug-label.c 12; CHECK-NEXT: DW_AT_decl_line [DW_FORM_data1] {{.*}}7 13; CHECK-NEXT: DW_AT_low_pc [DW_FORM_addr] {{.*}}{{0x[0-9a-f]+}} 14; CHECK-NOT: DW_AT_name {{.*}}"top" 15; 16; RUN: llc -O0 -o - %s | FileCheck %s -check-prefix=ASM 17; 18; ASM: [[TOP_LOW_PC:[.0-9a-zA-Z]+]]:{{[[:space:]].*}}DEBUG_LABEL: foo:top 19; ASM: [[DONE_LOW_PC:[.0-9a-zA-Z]+]]:{{[[:space:]].*}}DEBUG_LABEL: foo:done 20; ASM-LABEL: {{debug_info|dwinfo}} 21; ASM: DW_TAG_label 22; ASM-NEXT: DW_AT_name 23; ASM: 1 {{.*}} DW_AT_decl_file 24; ASM-NEXT: 4 {{.*}} DW_AT_decl_line 25; ASM-NEXT: [[TOP_LOW_PC]]{{.*}} DW_AT_low_pc 26; ASM: DW_TAG_label 27; ASM-NEXT: DW_AT_name 28; ASM: 1 {{.*}} DW_AT_decl_file 29; ASM-NEXT: 7 {{.*}} DW_AT_decl_line 30; ASM-NEXT: [[DONE_LOW_PC]]{{.*}} DW_AT_low_pc 31 32source_filename = "debug-label.c" 33 34define dso_local i32 @foo(i32 %a, i32 %b) !dbg !6 { 35entry: 36 %a.addr = alloca i32, align 4 37 %b.addr = alloca i32, align 4 38 %sum = alloca i32, align 4 39 store i32 %a, ptr %a.addr, align 4 40 store i32 %b, ptr %b.addr, align 4 41 br label %top 42 43top: 44 call void @llvm.dbg.label(metadata !10), !dbg !11 45 %0 = load i32, ptr %a.addr, align 4 46 %1 = load i32, ptr %b.addr, align 4 47 %add = add nsw i32 %0, %1 48 store i32 %add, ptr %sum, align 4 49 br label %done 50 51done: 52 call void @llvm.dbg.label(metadata !12), !dbg !13 53 %2 = load i32, ptr %sum, align 4 54 ret i32 %2, !dbg !14 55} 56 57declare void @llvm.dbg.label(metadata) 58 59!llvm.dbg.cu = !{!0} 60!llvm.module.flags = !{!4} 61 62!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, isOptimized: false, emissionKind: FullDebug, enums: !2) 63!1 = !DIFile(filename: "debug-label.c", directory: "./") 64!2 = !{} 65!3 = !{!10} 66!4 = !{i32 2, !"Debug Info Version", i32 3} 67!6 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !7, isLocal: false, isDefinition: true, scopeLine: 2, isOptimized: false, unit: !0, retainedNodes: !3) 68!7 = !DISubroutineType(types: !8) 69!8 = !{!9, !9, !9} 70!9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 71!10 = !DILabel(scope: !6, name: "top", file: !1, line: 4) 72!11 = !DILocation(line: 4, column: 1, scope: !6) 73!12 = !DILabel(scope: !15, name: "done", file: !1, line: 7) 74!13 = !DILocation(line: 7, column: 1, scope: !6) 75!14 = !DILocation(line: 8, column: 3, scope: !6) 76!15 = !DILexicalBlockFile(discriminator: 2, file: !1, scope: !6) 77