1; RUN: %llc_dwarf -O0 -filetype=obj < %s > %t 2; RUN: llvm-dwarfdump -v %t | FileCheck %s 3 4; Generated from the following C++ source code: 5; 6; struct A { 7; virtual void f(); 8; virtual void g(); 9; }; 10; 11; void A::f() {} 12; void A::g() {} 13; 14; and manually edited to set virtualIndex attribute on the A::g subprogram to 15; 4294967295. 16 17; CHECK: DW_TAG_subprogram [ 18; CHECK: DW_AT_vtable_elem_location [DW_FORM_exprloc] (DW_OP_constu 0x0) 19 20; CHECK: DW_TAG_subprogram [ 21; CHECK-NOT: DW_AT_vtable_elem_location 22 23%struct.A = type { i32 (...)** } 24 25@_ZTV1A = unnamed_addr constant [4 x i8*] [i8* null, i8* null, i8* bitcast (void (%struct.A*)* @_ZN1A1fEv to i8*), i8* bitcast (void (%struct.A*)* @_ZN1A1gEv to i8*)], align 8 26 27define void @_ZN1A1fEv(%struct.A* %this) unnamed_addr !dbg !18 { 28 ret void 29} 30 31define void @_ZN1A1gEv(%struct.A* %this) unnamed_addr !dbg !19 { 32 ret void 33} 34 35!llvm.dbg.cu = !{!0} 36!llvm.module.flags = !{!20, !21} 37!llvm.ident = !{!22} 38 39!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3) 40!1 = !DIFile(filename: "x", directory: "x") 41!2 = !{} 42!3 = !{!4} 43!4 = !DICompositeType(tag: DW_TAG_structure_type, name: "A", file: !1, line: 1, size: 64, align: 64, elements: !5, vtableHolder: !4, identifier: "_ZTS1A") 44!5 = !{!6, !12, !16} 45!6 = !DIDerivedType(tag: DW_TAG_member, name: "_vptr$A", scope: !1, file: !1, baseType: !7, size: 64, flags: DIFlagArtificial) 46!7 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !8, size: 64) 47!8 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "__vtbl_ptr_type", baseType: !9, size: 64) 48!9 = !DISubroutineType(types: !10) 49!10 = !{!11} 50!11 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 51!12 = !DISubprogram(name: "f", linkageName: "_ZN1A1fEv", scope: !4, file: !1, line: 2, type: !13, isLocal: false, isDefinition: false, scopeLine: 2, containingType: !4, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 0, flags: DIFlagPrototyped, isOptimized: false) 52!13 = !DISubroutineType(types: !14) 53!14 = !{null, !15} 54!15 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !4, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer) 55!16 = !DISubprogram(name: "g", linkageName: "_ZN1A1gEv", scope: !4, file: !1, line: 3, type: !13, isLocal: false, isDefinition: false, scopeLine: 3, containingType: !4, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 4294967295, flags: DIFlagPrototyped, isOptimized: false) 56!18 = distinct !DISubprogram(name: "f", linkageName: "_ZN1A1fEv", scope: !4, file: !1, line: 6, type: !13, isLocal: false, isDefinition: true, scopeLine: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !12, retainedNodes: !2) 57!19 = distinct !DISubprogram(name: "g", linkageName: "_ZN1A1gEv", scope: !4, file: !1, line: 7, type: !13, isLocal: false, isDefinition: true, scopeLine: 7, flags: DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !16, retainedNodes: !2) 58!20 = !{i32 2, !"Dwarf Version", i32 4} 59!21 = !{i32 2, !"Debug Info Version", i32 3} 60!22 = !{!"clang version 3.9.0 (trunk 263469) (llvm/trunk 263156)"} 61!23 = !DILocalVariable(name: "this", arg: 1, scope: !18, type: !24, flags: DIFlagArtificial | DIFlagObjectPointer) 62!24 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !4, size: 64, align: 64) 63!25 = !DIExpression() 64!26 = !DILocation(line: 0, scope: !18) 65!27 = !DILocation(line: 6, column: 14, scope: !18) 66!28 = !DILocalVariable(name: "this", arg: 1, scope: !19, type: !24, flags: DIFlagArtificial | DIFlagObjectPointer) 67!29 = !DILocation(line: 0, scope: !19) 68!30 = !DILocation(line: 7, column: 14, scope: !19) 69