1; RUN: llc < %s -filetype=obj | llvm-readobj - --codeview | FileCheck %s 2; RUN: llc < %s | llvm-mc -filetype=obj --triple=i686-windows | llvm-readobj - --codeview | FileCheck %s 3; 4; Verify lambda routines are emitted properly in CodeView. 5; 6; The original source code: 7; ----------------------------------------------------------------------------- 8; int main(int argc, char* argv[], char* arge[]) { 9; auto Lambda = [argc](int count) -> int { return argc == count ? 1 : 0; }; 10; return Lambda(0); 11; } 12; ----------------------------------------------------------------------------- 13; 14; To regenerate the IR below compile the source code: 15; $ clang lambda.cxx -S -emit-llvm -g -gcodeview 16; 17; CHECK: FieldList ([[FIELDLIST_ID:0x[0-9A-F]+]]) { 18; CHECK-NEXT: TypeLeafKind: LF_FIELDLIST ({{.*}}) 19; CHECK-NEXT: DataMember { 20; CHECK-NEXT: TypeLeafKind: LF_MEMBER ({{.*}}) 21; CHECK-NEXT: AccessSpecifier: Private ({{.*}}) 22; CHECK-NEXT: Type: int ({{.*}}) 23; CHECK-NEXT: FieldOffset: {{.*}} 24; CHECK-NEXT: Name: argc 25; CHECK-NEXT: } 26; CHECK-NEXT: OneMethod { 27; CHECK-NEXT: TypeLeafKind: LF_ONEMETHOD (0x1511) 28; CHECK-NEXT: AccessSpecifier: Public (0x3) 29; CHECK-NEXT: Type: int main::<unnamed-tag>::(int) ({{.*}}) 30; CHECK-NEXT: Name: operator() 31; CHECK-NEXT: } 32; CHECK-NEXT: } 33; CHECK-NEXT: Class ([[CLASS_ID:0x[0-9A-F]+]]) { 34; CHECK-NEXT: TypeLeafKind: LF_CLASS ({{.*}}) 35; CHECK-NEXT: MemberCount: {{.*}} 36; CHECK-NEXT: Properties [ ({{.*}}) 37; CHECK-NEXT: HasUniqueName ({{.*}}) 38; CHECK-NEXT: Scoped ({{.*}}) 39; CHECK-NEXT: ] 40; CHECK-NEXT: FieldList: <field list> ([[FIELDLIST_ID]]) 41; CHECK-NEXT: DerivedFrom: {{.*}} 42; CHECK-NEXT: VShape: {{.*}} 43; CHECK-NEXT: SizeOf: {{.*}} 44; CHECK-NEXT: Name: main::<unnamed-tag> 45; CHECK-NEXT: LinkageName: {{.*lambda.*}} 46; CHECK-NEXT: } 47; LocalSym { 48; Kind: S_LOCAL ({{.*}}) 49; CHECK: Type: main::<unnamed-tag> ([[CLASS_ID]]) 50; Flags [ (0x0) 51; ] 52; CHECK: VarName: Lambda 53; } 54 55; ModuleID = 'lambda.cxx' 56source_filename = "lambda.cxx" 57target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32" 58target triple = "i686-pc-windows-msvc19.0.24210" 59 60%class.anon = type { i32 } 61 62; Function Attrs: noinline norecurse optnone 63define dso_local i32 @main(i32 %argc, i8** %argv, i8** %arge) #0 !dbg !8 { 64entry: 65 %retval = alloca i32, align 4 66 %arge.addr = alloca i8**, align 4 67 %argv.addr = alloca i8**, align 4 68 %argc.addr = alloca i32, align 4 69 %Lambda = alloca %class.anon, align 4 70 store i32 0, i32* %retval, align 4 71 store i8** %arge, i8*** %arge.addr, align 4 72 call void @llvm.dbg.declare(metadata i8*** %arge.addr, metadata !15, metadata !DIExpression()), !dbg !16 73 store i8** %argv, i8*** %argv.addr, align 4 74 call void @llvm.dbg.declare(metadata i8*** %argv.addr, metadata !17, metadata !DIExpression()), !dbg !16 75 store i32 %argc, i32* %argc.addr, align 4 76 call void @llvm.dbg.declare(metadata i32* %argc.addr, metadata !18, metadata !DIExpression()), !dbg !16 77 call void @llvm.dbg.declare(metadata %class.anon* %Lambda, metadata !19, metadata !DIExpression()), !dbg !28 78 %0 = getelementptr inbounds %class.anon, %class.anon* %Lambda, i32 0, i32 0, !dbg !28 79 %1 = load i32, i32* %argc.addr, align 4, !dbg !28 80 store i32 %1, i32* %0, align 4, !dbg !28 81 %call = call x86_thiscallcc i32 @"??R<lambda_0>@?0??main@@9@QBE@H@Z"(%class.anon* %Lambda, i32 0), !dbg !29 82 ret i32 %call, !dbg !29 83} 84 85; Function Attrs: nounwind readnone speculatable 86declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 87 88; Function Attrs: noinline nounwind optnone 89define internal x86_thiscallcc i32 @"??R<lambda_0>@?0??main@@9@QBE@H@Z"(%class.anon* %this, i32 %count) #2 align 2 !dbg !30 { 90entry: 91 %count.addr = alloca i32, align 4 92 %this.addr = alloca %class.anon*, align 4 93 store i32 %count, i32* %count.addr, align 4 94 call void @llvm.dbg.declare(metadata i32* %count.addr, metadata !31, metadata !DIExpression()), !dbg !32 95 store %class.anon* %this, %class.anon** %this.addr, align 4 96 call void @llvm.dbg.declare(metadata %class.anon** %this.addr, metadata !33, metadata !DIExpression()), !dbg !35 97 %this1 = load %class.anon*, %class.anon** %this.addr, align 4 98 %0 = getelementptr inbounds %class.anon, %class.anon* %this1, i32 0, i32 0, !dbg !32 99 %1 = load i32, i32* %0, align 4, !dbg !32 100 %2 = load i32, i32* %count.addr, align 4, !dbg !32 101 %cmp = icmp eq i32 %1, %2, !dbg !32 102 %3 = zext i1 %cmp to i64, !dbg !32 103 %cond = select i1 %cmp, i32 1, i32 0, !dbg !32 104 ret i32 %cond, !dbg !32 105} 106 107attributes #0 = { noinline norecurse optnone "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "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"="pentium4" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } 108attributes #1 = { nounwind readnone speculatable } 109attributes #2 = { noinline nounwind optnone "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "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"="pentium4" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } 110 111!llvm.dbg.cu = !{!0} 112!llvm.module.flags = !{!3, !4, !5, !6} 113!llvm.ident = !{!7} 114 115!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 7.0.0 (trunk)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) 116!1 = !DIFile(filename: "lambda.cxx", directory: "C:\5Cpath\5Cto", checksumkind: CSK_MD5, checksum: "8d860c432e3763effaf1658460a496c0") 117!2 = !{} 118!3 = !{i32 1, !"NumRegisterParameters", i32 0} 119!4 = !{i32 2, !"CodeView", i32 1} 120!5 = !{i32 2, !"Debug Info Version", i32 3} 121!6 = !{i32 1, !"wchar_size", i32 2} 122!7 = !{!"clang version 7.0.0 (trunk)"} 123!8 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 1, type: !9, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2) 124!9 = !DISubroutineType(types: !10) 125!10 = !{!11, !11, !12, !12} 126!11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 127!12 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !13, size: 32) 128!13 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !14, size: 32) 129!14 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char) 130!15 = !DILocalVariable(name: "arge", arg: 3, scope: !8, file: !1, line: 1, type: !12) 131!16 = !DILocation(line: 1, scope: !8) 132!17 = !DILocalVariable(name: "argv", arg: 2, scope: !8, file: !1, line: 1, type: !12) 133!18 = !DILocalVariable(name: "argc", arg: 1, scope: !8, file: !1, line: 1, type: !11) 134!19 = !DILocalVariable(name: "Lambda", scope: !8, file: !1, line: 2, type: !20) 135!20 = distinct !DICompositeType(tag: DW_TAG_class_type, scope: !8, file: !1, line: 2, size: 32, flags: DIFlagTypePassByValue, elements: !21, identifier: "??R<lambda_0>@?0??main@@9@QBE@H@Z") 136!21 = !{!22, !23} 137!22 = !DIDerivedType(tag: DW_TAG_member, name: "argc", scope: !20, file: !1, line: 2, baseType: !11, size: 32) 138!23 = !DISubprogram(name: "operator()", scope: !20, file: !1, line: 2, type: !24, isLocal: false, isDefinition: false, scopeLine: 2, flags: DIFlagPublic | DIFlagPrototyped, isOptimized: false) 139!24 = !DISubroutineType(cc: DW_CC_BORLAND_thiscall, types: !25) 140!25 = !{!11, !26, !11} 141!26 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !27, size: 32, flags: DIFlagArtificial | DIFlagObjectPointer) 142!27 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !20) 143!28 = !DILocation(line: 2, scope: !8) 144!29 = !DILocation(line: 3, scope: !8) 145!30 = distinct !DISubprogram(name: "operator()", linkageName: "??R<lambda_0>@?0??main@@9@QBE@H@Z", scope: !20, file: !1, line: 2, type: !24, isLocal: true, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !23, retainedNodes: !2) 146!31 = !DILocalVariable(name: "count", arg: 2, scope: !30, file: !1, line: 2, type: !11) 147!32 = !DILocation(line: 2, scope: !30) 148!33 = !DILocalVariable(name: "this", arg: 1, scope: !30, type: !34, flags: DIFlagArtificial | DIFlagObjectPointer) 149!34 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !27, size: 32) 150!35 = !DILocation(line: 0, scope: !30) 151