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1; This checks that .debug_names can be generated in the DWARF64 format.2 3; RUN: llc -mtriple=x86_64 -dwarf64 -accel-tables=Dwarf -dwarf-version=5 -filetype=obj %s -o %t4; RUN: llvm-dwarfdump -debug-info -debug-names %t | FileCheck %s5; RUN: llvm-dwarfdump -debug-names -verify %t | FileCheck --check-prefix=VERIFY %s6 7; CHECK: .debug_info contents:8; CHECK-NEXT: 0x00000000: Compile Unit: {{.+}}, format = DWARF64,9; CHECK: [[VARDIE:.+]]: DW_TAG_variable10; CHECK-NEXT: DW_AT_name ("foo")11; CHECK: [[TYPEDIE:.+]]: DW_TAG_base_type12; CHECK-NEXT: DW_AT_name ("int")13; CHECK: [[SPDIE:.+]]: DW_TAG_subprogram14; CHECK: DW_AT_name ("func")15; CHECK: [[LABELDIE:.+]]: DW_TAG_label16; CHECK-NEXT: DW_AT_name ("MyLabel")17 18; CHECK: .debug_names contents:19; CHECK-NEXT: Name Index @ 0x0 {20; CHECK-NEXT: Header {21; CHECK: Format: DWARF6422; CHECK-NEXT: Version: 523; CHECK-NEXT: CU count: 124; CHECK-NEXT: Local TU count: 025; CHECK-NEXT: Foreign TU count: 026; CHECK-NEXT: Bucket count: 427; CHECK-NEXT: Name count: 428; CHECK: }29; CHECK-NEXT: Compilation Unit offsets [30; CHECK-NEXT: CU[0]: 0x0000000031; CHECK-NEXT: ]32; CHECK-NEXT: Abbreviations [33; CHECK-NEXT: Abbreviation [[ABBREV:0x[0-9a-f]*]] {34; CHECK-NEXT: Tag: DW_TAG_base_type35; CHECK-NEXT: DW_IDX_die_offset: DW_FORM_ref436; CHECK-NEXT: DW_IDX_parent: DW_FORM_flag_present37; CHECK-NEXT: }38; CHECK-NEXT: Abbreviation [[ABBREV1:0x[0-9a-f]*]] {39; CHECK-NEXT: Tag: DW_TAG_variable40; CHECK-NEXT: DW_IDX_die_offset: DW_FORM_ref441; CHECK-NEXT: DW_IDX_parent: DW_FORM_flag_present42; CHECK-NEXT: }43; CHECK-NEXT: Abbreviation [[ABBREV_SP:0x[0-9a-f]*]] {44; CHECK-NEXT: Tag: DW_TAG_subprogram45; CHECK-NEXT: DW_IDX_die_offset: DW_FORM_ref446; CHECK-NEXT: DW_IDX_parent: DW_FORM_flag_present47; CHECK-NEXT: }48; CHECK-NEXT: Abbreviation [[ABBREV_LABEL:0x[0-9a-f]*]] {49; CHECK-NEXT: Tag: DW_TAG_label50; CHECK-NEXT: DW_IDX_die_offset: DW_FORM_ref451; CHECK-NEXT: DW_IDX_parent: DW_FORM_ref452; CHECK-NEXT: }53; CHECK-NEXT: ]54; CHECK-NEXT: Bucket 0 [55; CHECK-NEXT: Name 1 {56; CHECK-NEXT: Hash: 0xB88803057; CHECK-NEXT: String: {{.+}} "int"58; CHECK-NEXT: Entry @ {{.+}} {59; CHECK-NEXT: Abbrev: [[ABBREV]]60; CHECK-NEXT: Tag: DW_TAG_base_type61; CHECK-NEXT: DW_IDX_die_offset: [[TYPEDIE]]62; CHECK-NEXT: DW_IDX_parent: <parent not indexed>63; CHECK-NEXT: }64; CHECK-NEXT: }65; CHECK-NEXT: ]66; CHECK-NEXT: Bucket 1 [67; CHECK-NEXT: Name 2 {68; CHECK-NEXT: Hash: 0xB88738969; CHECK-NEXT: String: {{.+}} "foo"70; CHECK-NEXT: Entry @ {{.+}} {71; CHECK-NEXT: Abbrev: [[ABBREV1]]72; CHECK-NEXT: Tag: DW_TAG_variable73; CHECK-NEXT: DW_IDX_die_offset: [[VARDIE]]74; CHECK-NEXT: DW_IDX_parent: <parent not indexed>75; CHECK-NEXT: }76; CHECK-NEXT: }77; CHECK-NEXT: Name 3 {78; CHECK-NEXT: Hash: 0x7C96FE7179; CHECK-NEXT: String: {{.+}} "func"80; CHECK-NEXT: Entry @ [[FUNC_ENTRY:0x.+]] {81; CHECK-NEXT: Abbrev: [[ABBREV_SP]]82; CHECK-NEXT: Tag: DW_TAG_subprogram83; CHECK-NEXT: DW_IDX_die_offset: [[SPDIE]]84; CHECK-NEXT: DW_IDX_parent: <parent not indexed>85; CHECK-NEXT: }86; CHECK-NEXT: }87; CHECK-NEXT: ]88; CHECK-NEXT: Bucket 2 [89; CHECK-NEXT: EMPTY90; CHECK-NEXT: ]91; CHECK-NEXT: Bucket 3 [92; CHECK-NEXT: Name 4 {93; CHECK-NEXT: Hash: 0xEC64E52B94; CHECK-NEXT: String: {{.+}} "MyLabel"95; CHECK-NEXT: Entry @ {{.+}} {96; CHECK-NEXT: Abbrev: [[ABBREV_LABEL]]97; CHECK-NEXT: Tag: DW_TAG_label98; CHECK-NEXT: DW_IDX_die_offset: [[LABELDIE]]99; CHECK-NEXT: DW_IDX_parent: Entry @ [[FUNC_ENTRY]]100; CHECK-NEXT: }101; CHECK-NEXT: }102; CHECK-NEXT: ]103; CHECK-NEXT: }104 105; VERIFY: No errors.106 107; IR generated and reduced from:108; $ cat foo.c109; int foo;110; void func() {111; goto MyLabel;112;113; MyLabel:114; return 1;115; }116; $ clang -g -gpubnames -S -emit-llvm foo.c -o foo.ll117 118target triple = "x86_64-unknown-linux-gnu"119 120@foo = dso_local global i32 0, align 4, !dbg !0121 122define void @func() !dbg !11 {123 call void @llvm.dbg.label(metadata !15), !dbg !14124 ret void, !dbg !14125}126 127declare void @llvm.dbg.label(metadata)128 129!llvm.dbg.cu = !{!2}130!llvm.module.flags = !{!7, !8, !9}131!llvm.ident = !{!10}132 133!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())134!1 = distinct !DIGlobalVariable(name: "foo", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true)135!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 12.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, splitDebugInlining: false)136!3 = !DIFile(filename: "foo.c", directory: "/tmp")137!4 = !{}138!5 = !{!0}139!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)140!7 = !{i32 7, !"Dwarf Version", i32 4}141!8 = !{i32 2, !"Debug Info Version", i32 3}142!9 = !{i32 1, !"wchar_size", i32 4}143!10 = !{!"clang version 12.0.0"}144!11 = distinct !DISubprogram(name: "func", linkageName: "func", scope: !3, file: !3, line: 2, type: !12, unit: !2)145!12 = !DISubroutineType(types: !13)146!13 = !{null}147!14 = !DILocation(line: 2, column: 13, scope: !11)148!15 = !DILabel(scope: !11, name: "MyLabel", file: !3, line: 5)149