1 ; REQUIRES: object-emission 2 3 ; RUN: %llc_dwarf -O0 -filetype=obj < %s > %t 4 ; RUN: llvm-dwarfdump %t | FileCheck %s 5 6 ; Generated from the following C++ source code: 7 ; 8 ; struct A { 9 ; virtual void f(); 10 ; virtual void g(); 11 ; }; 12 ; 13 ; void A::f() {} 14 ; void A::g() {} 15 ; 16 ; and manually edited to set virtualIndex attribute on the A::g subprogram to 17 ; 4294967295. 18 19 ; CHECK: DW_TAG_subprogram [ 20 ; CHECK: DW_AT_vtable_elem_location [DW_FORM_exprloc] (<0x2> 10 00 ) 21 22 ; CHECK: DW_TAG_subprogram [ 23 ; CHECK-NOT: DW_AT_vtable_elem_location 24 25 %struct.A = type { i32 (...)** } 26 27 @_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 28 29 define void @_ZN1A1fEv(%struct.A* %this) unnamed_addr !dbg !18 { 30 ret void 31 } 32 33 define void @_ZN1A1gEv(%struct.A* %this) unnamed_addr !dbg !19 { 34 ret void 35 } 36 37 !llvm.dbg.cu = !{!0} 38 !llvm.module.flags = !{!20, !21} 39 !llvm.ident = !{!22} 40 41 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3) 42 !1 = !DIFile(filename: "x", directory: "x") 43 !2 = !{} 44 !3 = !{!4} 45 !4 = !DICompositeType(tag: DW_TAG_structure_type, name: "A", file: !1, line: 1, size: 64, align: 64, elements: !5, vtableHolder: !4, identifier: "_ZTS1A") 46 !5 = !{!6, !12, !16} 47 !6 = !DIDerivedType(tag: DW_TAG_member, name: "_vptr$A", scope: !1, file: !1, baseType: !7, size: 64, flags: DIFlagArtificial) 48 !7 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !8, size: 64) 49 !8 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "__vtbl_ptr_type", baseType: !9, size: 64) 50 !9 = !DISubroutineType(types: !10) 51 !10 = !{!11} 52 !11 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 53 !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) 54 !13 = !DISubroutineType(types: !14) 55 !14 = !{null, !15} 56 !15 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !4, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer) 57 !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) 58 !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, variables: !2) 59 !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, variables: !2) 60 !20 = !{i32 2, !"Dwarf Version", i32 4} 61 !21 = !{i32 2, !"Debug Info Version", i32 3} 62 !22 = !{!"clang version 3.9.0 (trunk 263469) (llvm/trunk 263156)"} 63 !23 = !DILocalVariable(name: "this", arg: 1, scope: !18, type: !24, flags: DIFlagArtificial | DIFlagObjectPointer) 64 !24 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !4, size: 64, align: 64) 65 !25 = !DIExpression() 66 !26 = !DILocation(line: 0, scope: !18) 67 !27 = !DILocation(line: 6, column: 14, scope: !18) 68 !28 = !DILocalVariable(name: "this", arg: 1, scope: !19, type: !24, flags: DIFlagArtificial | DIFlagObjectPointer) 69 !29 = !DILocation(line: 0, scope: !19) 70 !30 = !DILocation(line: 7, column: 14, scope: !19) 71
