1 ; RUN: llc < %s -filetype=obj | llvm-readobj - -codeview | FileCheck %s 2 ; 3 ; Verify lambda routines are emitted properly in CodeView. 4 ; 5 ; The original source code: 6 ; ----------------------------------------------------------------------------- 7 ; int main(int argc, char* argv[], char* arge[]) { 8 ; auto Lambda = [argc](int count) -> int { return argc == count ? 1 : 0; }; 9 ; return Lambda(0); 10 ; } 11 ; ----------------------------------------------------------------------------- 12 ; 13 ; To regenerate the IR below compile the source code: 14 ; $ clang lambda.cxx -S -emit-llvm -g -gcodeview 15 ; 16 ; CHECK: FieldList ([[FIELDLIST_ID:0x[0-9A-F]+]]) { 17 ; CHECK-NEXT: TypeLeafKind: LF_FIELDLIST ({{.*}}) 18 ; CHECK-NEXT: DataMember { 19 ; CHECK-NEXT: TypeLeafKind: LF_MEMBER ({{.*}}) 20 ; CHECK-NEXT: AccessSpecifier: Private ({{.*}}) 21 ; CHECK-NEXT: Type: int ({{.*}}) 22 ; CHECK-NEXT: FieldOffset: {{.*}} 23 ; CHECK-NEXT: Name: argc 24 ; CHECK-NEXT: } 25 ; CHECK-NEXT: OneMethod { 26 ; CHECK-NEXT: TypeLeafKind: LF_ONEMETHOD (0x1511) 27 ; CHECK-NEXT: AccessSpecifier: Public (0x3) 28 ; CHECK-NEXT: Type: int main::<unnamed-tag>::(int) ({{.*}}) 29 ; CHECK-NEXT: Name: operator() 30 ; CHECK-NEXT: } 31 ; CHECK-NEXT: } 32 ; CHECK-NEXT: Class ([[CLASS_ID:0x[0-9A-F]+]]) { 33 ; CHECK-NEXT: TypeLeafKind: LF_CLASS ({{.*}}) 34 ; CHECK-NEXT: MemberCount: {{.*}} 35 ; CHECK-NEXT: Properties [ ({{.*}}) 36 ; CHECK-NEXT: HasUniqueName ({{.*}}) 37 ; CHECK-NEXT: Scoped ({{.*}}) 38 ; CHECK-NEXT: ] 39 ; CHECK-NEXT: FieldList: <field list> ([[FIELDLIST_ID]]) 40 ; CHECK-NEXT: DerivedFrom: {{.*}} 41 ; CHECK-NEXT: VShape: {{.*}} 42 ; CHECK-NEXT: SizeOf: {{.*}} 43 ; CHECK-NEXT: Name: main::<unnamed-tag> 44 ; CHECK-NEXT: LinkageName: {{.*lambda.*}} 45 ; CHECK-NEXT: } 46 ; LocalSym { 47 ; Kind: S_LOCAL ({{.*}}) 48 ; CHECK: Type: main::<unnamed-tag> ([[CLASS_ID]]) 49 ; Flags [ (0x0) 50 ; ] 51 ; CHECK: VarName: Lambda 52 ; } 53 54 ; ModuleID = 'lambda.cxx' 55 source_filename = "lambda.cxx" 56 target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32" 57 target triple = "i686-pc-windows-msvc19.0.24210" 58 59 %class.anon = type { i32 } 60 61 ; Function Attrs: noinline norecurse optnone 62 define dso_local i32 @main(i32 %argc, i8** %argv, i8** %arge) #0 !dbg !8 { 63 entry: 64 %retval = alloca i32, align 4 65 %arge.addr = alloca i8**, align 4 66 %argv.addr = alloca i8**, align 4 67 %argc.addr = alloca i32, align 4 68 %Lambda = alloca %class.anon, align 4 69 store i32 0, i32* %retval, align 4 70 store i8** %arge, i8*** %arge.addr, align 4 71 call void @llvm.dbg.declare(metadata i8*** %arge.addr, metadata !15, metadata !DIExpression()), !dbg !16 72 store i8** %argv, i8*** %argv.addr, align 4 73 call void @llvm.dbg.declare(metadata i8*** %argv.addr, metadata !17, metadata !DIExpression()), !dbg !16 74 store i32 %argc, i32* %argc.addr, align 4 75 call void @llvm.dbg.declare(metadata i32* %argc.addr, metadata !18, metadata !DIExpression()), !dbg !16 76 call void @llvm.dbg.declare(metadata %class.anon* %Lambda, metadata !19, metadata !DIExpression()), !dbg !28 77 %0 = getelementptr inbounds %class.anon, %class.anon* %Lambda, i32 0, i32 0, !dbg !28 78 %1 = load i32, i32* %argc.addr, align 4, !dbg !28 79 store i32 %1, i32* %0, align 4, !dbg !28 80 %call = call x86_thiscallcc i32 @"??R<lambda_0>@?0??main@@9@QBE@H@Z"(%class.anon* %Lambda, i32 0), !dbg !29 81 ret i32 %call, !dbg !29 82 } 83 84 ; Function Attrs: nounwind readnone speculatable 85 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 86 87 ; Function Attrs: noinline nounwind optnone 88 define internal x86_thiscallcc i32 @"??R<lambda_0>@?0??main@@9@QBE@H@Z"(%class.anon* %this, i32 %count) #2 align 2 !dbg !30 { 89 entry: 90 %count.addr = alloca i32, align 4 91 %this.addr = alloca %class.anon*, align 4 92 store i32 %count, i32* %count.addr, align 4 93 call void @llvm.dbg.declare(metadata i32* %count.addr, metadata !31, metadata !DIExpression()), !dbg !32 94 store %class.anon* %this, %class.anon** %this.addr, align 4 95 call void @llvm.dbg.declare(metadata %class.anon** %this.addr, metadata !33, metadata !DIExpression()), !dbg !35 96 %this1 = load %class.anon*, %class.anon** %this.addr, align 4 97 %0 = getelementptr inbounds %class.anon, %class.anon* %this1, i32 0, i32 0, !dbg !32 98 %1 = load i32, i32* %0, align 4, !dbg !32 99 %2 = load i32, i32* %count.addr, align 4, !dbg !32 100 %cmp = icmp eq i32 %1, %2, !dbg !32 101 %3 = zext i1 %cmp to i64, !dbg !32 102 %cond = select i1 %cmp, i32 1, i32 0, !dbg !32 103 ret i32 %cond, !dbg !32 104 } 105 106 attributes #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" } 107 attributes #1 = { nounwind readnone speculatable } 108 attributes #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" } 109 110 !llvm.dbg.cu = !{!0} 111 !llvm.module.flags = !{!3, !4, !5, !6} 112 !llvm.ident = !{!7} 113 114 !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) 115 !1 = !DIFile(filename: "lambda.cxx", directory: "C:\5Cpath\5Cto", checksumkind: CSK_MD5, checksum: "8d860c432e3763effaf1658460a496c0") 116 !2 = !{} 117 !3 = !{i32 1, !"NumRegisterParameters", i32 0} 118 !4 = !{i32 2, !"CodeView", i32 1} 119 !5 = !{i32 2, !"Debug Info Version", i32 3} 120 !6 = !{i32 1, !"wchar_size", i32 2} 121 !7 = !{!"clang version 7.0.0 (trunk)"} 122 !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) 123 !9 = !DISubroutineType(types: !10) 124 !10 = !{!11, !11, !12, !12} 125 !11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 126 !12 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !13, size: 32) 127 !13 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !14, size: 32) 128 !14 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char) 129 !15 = !DILocalVariable(name: "arge", arg: 3, scope: !8, file: !1, line: 1, type: !12) 130 !16 = !DILocation(line: 1, scope: !8) 131 !17 = !DILocalVariable(name: "argv", arg: 2, scope: !8, file: !1, line: 1, type: !12) 132 !18 = !DILocalVariable(name: "argc", arg: 1, scope: !8, file: !1, line: 1, type: !11) 133 !19 = !DILocalVariable(name: "Lambda", scope: !8, file: !1, line: 2, type: !20) 134 !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") 135 !21 = !{!22, !23} 136 !22 = !DIDerivedType(tag: DW_TAG_member, name: "argc", scope: !20, file: !1, line: 2, baseType: !11, size: 32) 137 !23 = !DISubprogram(name: "operator()", scope: !20, file: !1, line: 2, type: !24, isLocal: false, isDefinition: false, scopeLine: 2, flags: DIFlagPublic | DIFlagPrototyped, isOptimized: false) 138 !24 = !DISubroutineType(cc: DW_CC_BORLAND_thiscall, types: !25) 139 !25 = !{!11, !26, !11} 140 !26 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !27, size: 32, flags: DIFlagArtificial | DIFlagObjectPointer) 141 !27 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !20) 142 !28 = !DILocation(line: 2, scope: !8) 143 !29 = !DILocation(line: 3, scope: !8) 144 !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) 145 !31 = !DILocalVariable(name: "count", arg: 2, scope: !30, file: !1, line: 2, type: !11) 146 !32 = !DILocation(line: 2, scope: !30) 147 !33 = !DILocalVariable(name: "this", arg: 1, scope: !30, type: !34, flags: DIFlagArtificial | DIFlagObjectPointer) 148 !34 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !27, size: 32) 149 !35 = !DILocation(line: 0, scope: !30) 150
