; RUN: llc < %s -filetype=obj | llvm-readobj - --codeview | FileCheck %s
; RUN: llc --try-experimental-debuginfo-iterators < %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 <typename T> struct A {
; static T comdat_int;
; static T set(T value) {
; T r = comdat_int;
; comdat_int = value;
; return r;
; };
; };
;
; template <typename T> T A<T>::comdat_int = 42;
;
; void foo() {
; static int local_int = 1;
; {
; static int nested_int = 2;
; local_int = nested_int;
; }
; local_int = A<int>::set(42);
; }
;
; void bar() {
; static int local_int = 3;
; {
; static int nested_int = 4;
; local_int = nested_int;
; }
; local_int = A<unsigned>::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$S (9)
; CHECK: Subsection [
; CHECK: SubSectionType: Symbols (0xF1)
; CHECK: GlobalProcIdSym {
; CHECK: Kind: S_GPROC32_ID (0x1147)
; CHECK: DisplayName: foo
; CHECK: LinkageName: ?foo@@YAXXZ
; CHECK: }
; CHECK: DataSym {
; CHECK: Kind: S_LDATA32 (0x110C)
; CHECK: DisplayName: local_int
; CHECK: LinkageName: ?local_int@?1??foo@@YAXXZ@4HA
; CHECK: }
; CHECK: DataSym {
; CHECK: Kind: S_LDATA32 (0x110C)
; CHECK: DisplayName: nested_int
; CHECK: LinkageName: ?nested_int@?1??foo@@YAXXZ@4HA
; CHECK: }
; CHECK: ProcEnd {
; CHECK: Kind: S_PROC_ID_END (0x114F)
; CHECK: }
; CHECK: ]
; CHECK: Subsection [
; CHECK: SubSectionType: Symbols (0xF1)
; CHECK: GlobalProcIdSym {
; CHECK: Kind: S_GPROC32_ID (0x1147)
; CHECK: DisplayName: bar
; CHECK: LinkageName: ?bar@@YAXXZ
; CHECK: }
; CHECK: DataSym {
; CHECK: Kind: S_LDATA32 (0x110C)
; CHECK: DisplayName: local_int
; CHECK: LinkageName: ?local_int@?1??bar@@YAXXZ@4HA
; CHECK: }
; CHECK: DataSym {
; CHECK: Kind: S_LDATA32 (0x110C)
; CHECK: DisplayName: nested_int
; CHECK: LinkageName: ?nested_int@?1??bar@@YAXXZ@4HA
; CHECK: }
; CHECK: ProcEnd {
; CHECK: Kind: S_PROC_ID_END (0x114F)
; CHECK: }
; CHECK: ]
; CHECK: Subsection [
; CHECK: SubSectionType: Symbols (0xF1)
; CHECK: GlobalData {
; CHECK: Kind: S_GDATA32 (0x110D)
; CHECK: DisplayName: global_int
; CHECK: LinkageName: ?global_int@@3HA
; CHECK: }
; CHECK: ]
; CHECK: ]
; CHECK: CodeViewDebugInfo [
; CHECK: Section: .debug$S (16)
; CHECK: Subsection [
; CHECK: SubSectionType: Symbols (0xF1)
; CHECK: GlobalData {
; CHECK: Kind: S_GDATA32 (0x110D)
; CHECK: DisplayName: A<int>::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<unsigned int>::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, ptr @"?nested_int@?1??foo@@YAXXZ@4HA", align 4, !dbg !45
store i32 %0, ptr @"?local_int@?1??foo@@YAXXZ@4HA", align 4, !dbg !45
%call = call i32 @"?set@?$A@H@@SAHH@Z"(i32 42), !dbg !47
store i32 %call, ptr @"?local_int@?1??foo@@YAXXZ@4HA", align 4, !dbg !47
ret void, !dbg !48
}
; Function Attrs: noinline nounwind optnone uwtable
define linkonce_odr dso_local i32 @"?set@?$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, ptr %value.addr, align 4
call void @llvm.dbg.declare(metadata ptr %value.addr, metadata !50, metadata !DIExpression()), !dbg !51
call void @llvm.dbg.declare(metadata ptr %r, metadata !52, metadata !DIExpression()), !dbg !53
%0 = load i32, ptr @"?comdat_int@?$A@H@@2HA", align 4, !dbg !53
store i32 %0, ptr %r, align 4, !dbg !53
%1 = load i32, ptr %value.addr, align 4, !dbg !54
store i32 %1, ptr @"?comdat_int@?$A@H@@2HA", align 4, !dbg !54
%2 = load i32, ptr %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, ptr @"?nested_int@?1??bar@@YAXXZ@4HA", align 4, !dbg !56
store i32 %0, ptr @"?local_int@?1??bar@@YAXXZ@4HA", align 4, !dbg !56
%call = call i32 @"?set@?$A@I@@SAII@Z"(i32 42), !dbg !58
store i32 %call, ptr @"?local_int@?1??bar@@YAXXZ@4HA", align 4, !dbg !58
ret void, !dbg !59
}
; Function Attrs: noinline nounwind optnone uwtable
define linkonce_odr dso_local i32 @"?set@?$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, ptr %value.addr, align 4
call void @llvm.dbg.declare(metadata ptr %value.addr, metadata !61, metadata !DIExpression()), !dbg !62
call void @llvm.dbg.declare(metadata ptr %r, metadata !63, metadata !DIExpression()), !dbg !64
%0 = load i32, ptr @"?comdat_int@?$A@I@@2IA", align 4, !dbg !64
store i32 %0, ptr %r, align 4, !dbg !64
%1 = load i32, ptr %value.addr, align 4, !dbg !65
store i32 %1, ptr @"?comdat_int@?$A@I@@2IA", align 4, !dbg !65
%2 = load i32, ptr %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@?$A@H@@2HA", scope: !2, file: !3, line: 12, type: !11, isLocal: false, isDefinition: true, declaration: !21)
!21 = !DIDerivedType(tag: DW_TAG_member, name: "comdat_int", scope: !22, file: !3, line: 4, baseType: !11, flags: DIFlagStaticMember)
!22 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "A<int>", file: !3, line: 3, size: 8, flags: DIFlagTypePassByValue, elements: !23, templateParams: !27, identifier: ".?AU?$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<unsigned int>", 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)
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