1 ; REQUIRES: default_triple, object-emission 2 ; 3 ; RUN: llvm-link %s %p/type-unique-odr-b.ll -S -o - | %llc_dwarf -dwarf-linkage-names=Enable -filetype=obj -O0 | llvm-dwarfdump -debug-dump=info - | FileCheck %s 4 ; 5 ; Test ODR-based type uniquing for C++ class members. 6 ; rdar://problem/15851313. 7 ; 8 ; $ cat -n type-unique-odr-a.cpp 9 ; 1 class A { 10 ; 2 int data; 11 ; 3 protected: 12 ; 4 void getFoo(); 13 ; 5 }; 14 ; 6 15 ; 7 static void bar() { 16 ; 8 A a; 17 ; 9 } 18 ; 10 19 ; 11 void baz() { bar(); } 20 ;; #include "ab.h" 21 ; foo_t bar() { 22 ; return A().getFoo(); 23 ; } 24 ; 25 ; CHECK: DW_TAG_class_type 26 ; CHECK-NEXT: DW_AT_name {{.*}} "A" 27 ; CHECK-NOT: DW_TAG 28 ; CHECK: DW_TAG_member 29 ; CHECK-NEXT: DW_AT_name {{.*}} "data" 30 ; CHECK-NOT: DW_TAG 31 ; CHECK: DW_TAG_subprogram 32 ; CHECK-NOT: DW_TAG 33 ; CHECK: DW_AT_linkage_name {{.*}} "_ZN1A6getFooEv" 34 ; CHECK-NOT: DW_TAG 35 ; CHECK: DW_AT_name {{.*}} "getFoo" 36 ; CHECK: DW_TAG_subprogram 37 ; CHECK-NOT: DW_TAG 38 ; CHECK: DW_AT_linkage_name {{.*}} "_Z3bazv" 39 ; CHECK: DW_TAG_subprogram 40 ; CHECK-NOT: DW_TAG 41 ; CHECK: DW_AT_linkage_name {{.*}} "_ZL3barv" 42 43 ; getFoo and A may only appear once. 44 ; CHECK-NOT: AT_name{{.*(getFoo)|("A")}} 45 46 47 ; ModuleID = 'type-unique-odr-a.cpp' 48 49 %class.A = type { i32 } 50 51 ; Function Attrs: nounwind 52 define void @_Z3bazv() #0 !dbg !15 { 53 entry: 54 call void @_ZL3barv(), !dbg !23 55 ret void, !dbg !23 56 } 57 58 ; Function Attrs: nounwind 59 define internal void @_ZL3barv() #0 !dbg !19 { 60 entry: 61 %a = alloca %class.A, align 4 62 call void @llvm.dbg.declare(metadata %class.A* %a, metadata !24, metadata !DIExpression()), !dbg !25 63 ret void, !dbg !26 64 } 65 66 ; Function Attrs: nounwind readnone 67 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 68 69 attributes #0 = { nounwind } 70 attributes #1 = { nounwind readnone } 71 72 !llvm.dbg.cu = !{!0} 73 !llvm.module.flags = !{!20, !21} 74 !llvm.ident = !{!22} 75 76 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !3, subprograms: !14, globals: !2, imports: !2) 77 !1 = !DIFile(filename: "<unknown>", directory: "") 78 !2 = !{} 79 !3 = !{!4} 80 !4 = !DICompositeType(tag: DW_TAG_class_type, name: "A", line: 1, size: 32, align: 32, file: !5, elements: !6, identifier: "_ZTS1A") 81 !5 = !DIFile(filename: "type-unique-odr-a.cpp", directory: "") 82 !6 = !{!7, !9} 83 !7 = !DIDerivedType(tag: DW_TAG_member, name: "data", line: 2, size: 32, align: 32, flags: DIFlagPrivate, file: !5, scope: !"_ZTS1A", baseType: !8) 84 !8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 85 !9 = !DISubprogram(name: "getFoo", linkageName: "_ZN1A6getFooEv", line: 4, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagProtected | DIFlagPrototyped, isOptimized: false, scopeLine: 4, file: !5, scope: !"_ZTS1A", type: !10) 86 !10 = !DISubroutineType(types: !11) 87 !11 = !{null, !12} 88 !12 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !"_ZTS1A") 89 !14 = !{!15, !19} 90 !15 = distinct !DISubprogram(name: "baz", linkageName: "_Z3bazv", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 11, file: !5, scope: !16, type: !17, variables: !2) 91 !16 = !DIFile(filename: "type-unique-odr-a.cpp", directory: "") 92 !17 = !DISubroutineType(types: !18) 93 !18 = !{null} 94 !19 = distinct !DISubprogram(name: "bar", linkageName: "_ZL3barv", line: 7, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 7, file: !5, scope: !16, type: !17, variables: !2) 95 !20 = !{i32 2, !"Dwarf Version", i32 4} 96 !21 = !{i32 1, !"Debug Info Version", i32 3} 97 !22 = !{!"clang version 3.5.0 "} 98 !23 = !DILocation(line: 11, scope: !15) 99 !24 = !DILocalVariable(name: "a", line: 8, scope: !19, file: !16, type: !"_ZTS1A") 100 !25 = !DILocation(line: 8, scope: !19) 101 !26 = !DILocation(line: 9, scope: !19) 102
