; RUN: llc < %s -filetype=obj | llvm-readobj - --codeview | FileCheck %s ; ; This test verifies global variables are emitted within the correct scope. ; ; -- global_visibility.cpp ---------------------------------------------------- ; int global_int = 0; ; ; template struct A { ; static T comdat_int; ; static T set(T value) { ; T r = comdat_int; ; comdat_int = value; ; return r; ; }; ; }; ; ; template T A::comdat_int = 42; ; ; void foo() { ; static int local_int = 1; ; { ; static int nested_int = 2; ; local_int = nested_int; ; } ; local_int = A::set(42); ; } ; ; void bar() { ; static int local_int = 3; ; { ; static int nested_int = 4; ; local_int = nested_int; ; } ; local_int = A::set(42); ; } ; ----------------------------------------------------------------------------- ; ; $ clang -S -emit-llvm -g -gcodeview global_visibility.cpp ; ; NOTE: The scope for both DIGlobalVariable's named "nested_int" should refer ; to the appropriate DILexicalBlock, not a DISubprogram. ; ; CHECK: CodeViewDebugInfo [ ; CHECK: Section: .debug$S (9) ; CHECK: Subsection [ ; CHECK: SubSectionType: Symbols (0xF1) ; CHECK: GlobalProcIdSym { ; CHECK: Kind: S_GPROC32_ID (0x1147) ; CHECK: DisplayName: foo ; CHECK: LinkageName: ?foo@@YAXXZ ; CHECK: } ; CHECK: DataSym { ; CHECK: Kind: S_LDATA32 (0x110C) ; CHECK: DisplayName: foo::local_int ; CHECK: LinkageName: ?local_int@?1??foo@@YAXXZ@4HA ; CHECK: } ; CHECK: DataSym { ; CHECK: Kind: S_LDATA32 (0x110C) ; CHECK: DisplayName: foo::nested_int ; CHECK: LinkageName: ?nested_int@?1??foo@@YAXXZ@4HA ; CHECK: } ; CHECK: ProcEnd { ; CHECK: Kind: S_PROC_ID_END (0x114F) ; CHECK: } ; CHECK: ] ; CHECK: Subsection [ ; CHECK: SubSectionType: Symbols (0xF1) ; CHECK: GlobalProcIdSym { ; CHECK: Kind: S_GPROC32_ID (0x1147) ; CHECK: DisplayName: bar ; CHECK: LinkageName: ?bar@@YAXXZ ; CHECK: } ; CHECK: DataSym { ; CHECK: Kind: S_LDATA32 (0x110C) ; CHECK: DisplayName: bar::local_int ; CHECK: LinkageName: ?local_int@?1??bar@@YAXXZ@4HA ; CHECK: } ; CHECK: DataSym { ; CHECK: Kind: S_LDATA32 (0x110C) ; CHECK: DisplayName: bar::nested_int ; CHECK: LinkageName: ?nested_int@?1??bar@@YAXXZ@4HA ; CHECK: } ; CHECK: ProcEnd { ; CHECK: Kind: S_PROC_ID_END (0x114F) ; CHECK: } ; CHECK: ] ; CHECK: Subsection [ ; CHECK: SubSectionType: Symbols (0xF1) ; CHECK: GlobalData { ; CHECK: Kind: S_GDATA32 (0x110D) ; CHECK: DisplayName: global_int ; CHECK: LinkageName: ?global_int@@3HA ; CHECK: } ; CHECK: ] ; CHECK: ] ; CHECK: CodeViewDebugInfo [ ; CHECK: Section: .debug$S (16) ; CHECK: Subsection [ ; CHECK: SubSectionType: Symbols (0xF1) ; CHECK: GlobalData { ; CHECK: Kind: S_GDATA32 (0x110D) ; CHECK: DisplayName: A::comdat_int ; CHECK: LinkageName: ?comdat_int@?$A@H@@2HA ; CHECK: } ; CHECK: ] ; CHECK: ] ; CHECK: CodeViewDebugInfo [ ; CHECK: Section: .debug$S (17) ; CHECK: Subsection [ ; CHECK: SubSectionType: Symbols (0xF1) ; CHECK: GlobalData { ; CHECK: Kind: S_GDATA32 (0x110D) ; CHECK: DisplayName: A::comdat_int ; CHECK: LinkageName: ?comdat_int@?$A@I@@2IA ; CHECK: } ; CHECK: ] ; CHECK: ] ; ; ModuleID = 'a.cpp' source_filename = "a.cpp" target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" target triple = "x86_64-pc-windows-msvc19.25.28614" $"?set@?$A@H@@SAHH@Z" = comdat any $"?set@?$A@I@@SAII@Z" = comdat any $"?comdat_int@?$A@H@@2HA" = comdat any $"?comdat_int@?$A@I@@2IA" = comdat any @"?global_int@@3HA" = dso_local global i32 0, align 4, !dbg !0 @"?local_int@?1??foo@@YAXXZ@4HA" = internal global i32 1, align 4, !dbg !6 @"?nested_int@?1??foo@@YAXXZ@4HA" = internal global i32 2, align 4, !dbg !12 @"?local_int@?1??bar@@YAXXZ@4HA" = internal global i32 3, align 4, !dbg !14 @"?nested_int@?1??bar@@YAXXZ@4HA" = internal global i32 4, align 4, !dbg !17 @"?comdat_int@?$A@H@@2HA" = linkonce_odr dso_local global i32 42, comdat, align 4, !dbg !19 @"?comdat_int@?$A@I@@2IA" = linkonce_odr dso_local global i32 42, comdat, align 4, !dbg !29 ; Function Attrs: noinline optnone uwtable define dso_local void @"?foo@@YAXXZ"() #0 !dbg !8 { entry: %0 = load i32, i32* @"?nested_int@?1??foo@@YAXXZ@4HA", align 4, !dbg !45 store i32 %0, i32* @"?local_int@?1??foo@@YAXXZ@4HA", align 4, !dbg !45 %call = call i32 @"?set@?$A@H@@SAHH@Z"(i32 42), !dbg !47 store i32 %call, i32* @"?local_int@?1??foo@@YAXXZ@4HA", align 4, !dbg !47 ret void, !dbg !48 } ; Function Attrs: noinline nounwind optnone uwtable define linkonce_odr dso_local i32 @"?set@?$A@H@@SAHH@Z"(i32 %value) #1 comdat align 2 !dbg !49 { entry: %value.addr = alloca i32, align 4 %r = alloca i32, align 4 store i32 %value, i32* %value.addr, align 4 call void @llvm.dbg.declare(metadata i32* %value.addr, metadata !50, metadata !DIExpression()), !dbg !51 call void @llvm.dbg.declare(metadata i32* %r, metadata !52, metadata !DIExpression()), !dbg !53 %0 = load i32, i32* @"?comdat_int@?$A@H@@2HA", align 4, !dbg !53 store i32 %0, i32* %r, align 4, !dbg !53 %1 = load i32, i32* %value.addr, align 4, !dbg !54 store i32 %1, i32* @"?comdat_int@?$A@H@@2HA", align 4, !dbg !54 %2 = load i32, i32* %r, align 4, !dbg !55 ret i32 %2, !dbg !55 } ; Function Attrs: noinline optnone uwtable define dso_local void @"?bar@@YAXXZ"() #0 !dbg !16 { entry: %0 = load i32, i32* @"?nested_int@?1??bar@@YAXXZ@4HA", align 4, !dbg !56 store i32 %0, i32* @"?local_int@?1??bar@@YAXXZ@4HA", align 4, !dbg !56 %call = call i32 @"?set@?$A@I@@SAII@Z"(i32 42), !dbg !58 store i32 %call, i32* @"?local_int@?1??bar@@YAXXZ@4HA", align 4, !dbg !58 ret void, !dbg !59 } ; Function Attrs: noinline nounwind optnone uwtable define linkonce_odr dso_local i32 @"?set@?$A@I@@SAII@Z"(i32 %value) #1 comdat align 2 !dbg !60 { entry: %value.addr = alloca i32, align 4 %r = alloca i32, align 4 store i32 %value, i32* %value.addr, align 4 call void @llvm.dbg.declare(metadata i32* %value.addr, metadata !61, metadata !DIExpression()), !dbg !62 call void @llvm.dbg.declare(metadata i32* %r, metadata !63, metadata !DIExpression()), !dbg !64 %0 = load i32, i32* @"?comdat_int@?$A@I@@2IA", align 4, !dbg !64 store i32 %0, i32* %r, align 4, !dbg !64 %1 = load i32, i32* %value.addr, align 4, !dbg !65 store i32 %1, i32* @"?comdat_int@?$A@I@@2IA", align 4, !dbg !65 %2 = load i32, i32* %r, align 4, !dbg !66 ret i32 %2, !dbg !66 } ; Function Attrs: nounwind readnone speculatable willreturn declare void @llvm.dbg.declare(metadata, metadata, metadata) #2 attributes #0 = { noinline optnone uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="none" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } attributes #1 = { noinline nounwind optnone uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="none" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } attributes #2 = { nounwind readnone speculatable willreturn } !llvm.dbg.cu = !{!2} !llvm.module.flags = !{!40, !41, !42, !43} !llvm.ident = !{!44} !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) !1 = distinct !DIGlobalVariable(name: "global_int", linkageName: "?global_int@@3HA", scope: !2, file: !3, line: 1, type: !11, isLocal: false, isDefinition: true) !2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !3, producer: "clang version 11.0.0 (https://github.com/llvm/llvm-project.git 202f144bffd0be254a829924195e1b8ebabcbb79)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: None) !3 = !DIFile(filename: "a.cpp", directory: "F:\\llvm-project\\__test", checksumkind: CSK_MD5, checksum: "66a5399777dc9d37656fb00438bca542") !4 = !{} !5 = !{!0, !6, !12, !14, !17, !19, !29} !6 = !DIGlobalVariableExpression(var: !7, expr: !DIExpression()) !7 = distinct !DIGlobalVariable(name: "local_int", scope: !8, file: !3, line: 15, type: !11, isLocal: true, isDefinition: true) !8 = distinct !DISubprogram(name: "foo", linkageName: "?foo@@YAXXZ", scope: !3, file: !3, line: 14, type: !9, scopeLine: 14, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !4) !9 = !DISubroutineType(types: !10) !10 = !{null} !11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) !12 = !DIGlobalVariableExpression(var: !13, expr: !DIExpression()) !13 = distinct !DIGlobalVariable(name: "nested_int", scope: !8, file: !3, line: 17, type: !11, isLocal: true, isDefinition: true) !14 = !DIGlobalVariableExpression(var: !15, expr: !DIExpression()) !15 = distinct !DIGlobalVariable(name: "local_int", scope: !16, file: !3, line: 24, type: !11, isLocal: true, isDefinition: true) !16 = distinct !DISubprogram(name: "bar", linkageName: "?bar@@YAXXZ", scope: !3, file: !3, line: 23, type: !9, scopeLine: 23, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !4) !17 = !DIGlobalVariableExpression(var: !18, expr: !DIExpression()) !18 = distinct !DIGlobalVariable(name: "nested_int", scope: !16, file: !3, line: 26, type: !11, isLocal: true, isDefinition: true) !19 = !DIGlobalVariableExpression(var: !20, expr: !DIExpression()) !20 = distinct !DIGlobalVariable(name: "comdat_int", linkageName: "?comdat_int@?$A@H@@2HA", scope: !2, file: !3, line: 12, type: !11, isLocal: false, isDefinition: true, declaration: !21) !21 = !DIDerivedType(tag: DW_TAG_member, name: "comdat_int", scope: !22, file: !3, line: 4, baseType: !11, flags: DIFlagStaticMember) !22 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "A", file: !3, line: 3, size: 8, flags: DIFlagTypePassByValue, elements: !23, templateParams: !27, identifier: ".?AU?$A@H@@") !23 = !{!21, !24} !24 = !DISubprogram(name: "set", linkageName: "?set@?$A@H@@SAHH@Z", scope: !22, file: !3, line: 5, type: !25, scopeLine: 5, flags: DIFlagPrototyped | DIFlagStaticMember, spFlags: 0) !25 = !DISubroutineType(types: !26) !26 = !{!11, !11} !27 = !{!28} !28 = !DITemplateTypeParameter(name: "T", type: !11) !29 = !DIGlobalVariableExpression(var: !30, expr: !DIExpression()) !30 = distinct !DIGlobalVariable(name: "comdat_int", linkageName: "?comdat_int@?$A@I@@2IA", scope: !2, file: !3, line: 12, type: !31, isLocal: false, isDefinition: true, declaration: !32) !31 = !DIBasicType(name: "unsigned int", size: 32, encoding: DW_ATE_unsigned) !32 = !DIDerivedType(tag: DW_TAG_member, name: "comdat_int", scope: !33, file: !3, line: 4, baseType: !31, flags: DIFlagStaticMember) !33 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "A", file: !3, line: 3, size: 8, flags: DIFlagTypePassByValue, elements: !34, templateParams: !38, identifier: ".?AU?$A@I@@") !34 = !{!32, !35} !35 = !DISubprogram(name: "set", linkageName: "?set@?$A@I@@SAII@Z", scope: !33, file: !3, line: 5, type: !36, scopeLine: 5, flags: DIFlagPrototyped | DIFlagStaticMember, spFlags: 0) !36 = !DISubroutineType(types: !37) !37 = !{!31, !31} !38 = !{!39} !39 = !DITemplateTypeParameter(name: "T", type: !31) !40 = !{i32 2, !"CodeView", i32 1} !41 = !{i32 2, !"Debug Info Version", i32 3} !42 = !{i32 1, !"wchar_size", i32 2} !43 = !{i32 7, !"PIC Level", i32 2} !44 = !{!"clang version 11.0.0 (https://github.com/llvm/llvm-project.git 202f144bffd0be254a829924195e1b8ebabcbb79)"} !45 = !DILocation(line: 18, scope: !46) !46 = distinct !DILexicalBlock(scope: !8, file: !3, line: 16) !47 = !DILocation(line: 20, scope: !8) !48 = !DILocation(line: 21, scope: !8) !49 = distinct !DISubprogram(name: "set", linkageName: "?set@?$A@H@@SAHH@Z", scope: !22, file: !3, line: 5, type: !25, scopeLine: 5, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !2, declaration: !24, retainedNodes: !4) !50 = !DILocalVariable(name: "value", arg: 1, scope: !49, file: !3, line: 5, type: !11) !51 = !DILocation(line: 5, scope: !49) !52 = !DILocalVariable(name: "r", scope: !49, file: !3, line: 6, type: !11) !53 = !DILocation(line: 6, scope: !49) !54 = !DILocation(line: 7, scope: !49) !55 = !DILocation(line: 8, scope: !49) !56 = !DILocation(line: 27, scope: !57) !57 = distinct !DILexicalBlock(scope: !16, file: !3, line: 25) !58 = !DILocation(line: 29, scope: !16) !59 = !DILocation(line: 30, scope: !16) !60 = distinct !DISubprogram(name: "set", linkageName: "?set@?$A@I@@SAII@Z", scope: !33, file: !3, line: 5, type: !36, scopeLine: 5, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !2, declaration: !35, retainedNodes: !4) !61 = !DILocalVariable(name: "value", arg: 1, scope: !60, file: !3, line: 5, type: !31) !62 = !DILocation(line: 5, scope: !60) !63 = !DILocalVariable(name: "r", scope: !60, file: !3, line: 6, type: !31) !64 = !DILocation(line: 6, scope: !60) !65 = !DILocation(line: 7, scope: !60) !66 = !DILocation(line: 8, scope: !60)