1 ; REQUIRES: default_triple, object-emission 2 ; 3 ; RUN: llvm-link %s %p/type-unique-odr-b.ll -S -o - \ 4 ; RUN: | %llc_dwarf -dwarf-linkage-names=All -filetype=obj -O0 \ 5 ; RUN: | llvm-dwarfdump -debug-dump=info - \ 6 ; RUN: | FileCheck %s 7 ; RUN: llvm-link %p/type-unique-odr-b.ll %s -S -o - \ 8 ; RUN: | %llc_dwarf -dwarf-linkage-names=All -filetype=obj -O0 \ 9 ; RUN: | llvm-dwarfdump -debug-dump=info - \ 10 ; RUN: | FileCheck %s 11 ; 12 ; Test ODR-based type uniquing for C++ class members. 13 ; rdar://problem/15851313. 14 ; 15 ; $ cat -n type-unique-odr-a.cpp 16 ; 1 class A { 17 ; 2 int data; 18 ; 3 protected: 19 ; 4 void getFoo(); 20 ; 5 }; 21 ; 6 22 ; 7 static void bar() { 23 ; 8 A a; 24 ; 9 } 25 ; 10 26 ; 11 void baz() { bar(); } 27 ;; #include "ab.h" 28 ; foo_t bar() { 29 ; return A().getFoo(); 30 ; } 31 ; 32 ; CHECK: DW_TAG_class_type 33 ; CHECK-NEXT: DW_AT_name {{.*}} "A" 34 ; CHECK-NOT: DW_TAG 35 ; CHECK: DW_TAG_member 36 ; CHECK-NEXT: DW_AT_name {{.*}} "data" 37 ; CHECK-NOT: DW_TAG 38 ; CHECK: DW_TAG_subprogram 39 ; CHECK-NOT: DW_TAG 40 ; CHECK: DW_AT_linkage_name {{.*}} "_ZN1A6getFooEv" 41 ; CHECK-NOT: DW_TAG 42 ; CHECK: DW_AT_name {{.*}} "getFoo" 43 44 ; Ensure that there aren't any other subprograms in class A. 45 ; CHECK-NOT: DW_TAG 46 ; CHECK: DW_TAG_formal_parameter 47 ; CHECK-NOT: DW_TAG 48 ; CHECK: NULL 49 ; CHECK-NOT: DW_TAG 50 ; CHECK: NULL 51 ; CHECK-NOT: DW_TAG 52 ; CHECK: DW_TAG_base_type 53 54 ; Ensure that getFoo and A are only emitted once. 55 ; CHECK-NOT: AT_name{{.*(getFoo)|("A")}} 56 57 ; ModuleID = 'type-unique-odr-a.cpp' 58 59 %class.A = type { i32 } 60 61 ; Function Attrs: nounwind 62 define void @_Z3bazv() #0 !dbg !15 { 63 entry: 64 call void @_ZL3barv(), !dbg !23 65 ret void, !dbg !23 66 } 67 68 ; Function Attrs: nounwind 69 define internal void @_ZL3barv() #0 !dbg !19 { 70 entry: 71 %a = alloca %class.A, align 4 72 call void @llvm.dbg.declare(metadata %class.A* %a, metadata !24, metadata !DIExpression()), !dbg !25 73 ret void, !dbg !26 74 } 75 76 ; Function Attrs: nounwind readnone 77 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 78 79 attributes #0 = { nounwind } 80 attributes #1 = { nounwind readnone } 81 82 !llvm.dbg.cu = !{!0} 83 !llvm.module.flags = !{!20, !21} 84 !llvm.ident = !{!22} 85 86 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !3, globals: !2, imports: !2) 87 !1 = !DIFile(filename: "<unknown>", directory: "") 88 !2 = !{} 89 !3 = !{!4} 90 !4 = !DICompositeType(tag: DW_TAG_class_type, name: "A", line: 1, size: 32, align: 32, file: !5, elements: !6, identifier: "_ZTS1A") 91 !5 = !DIFile(filename: "type-unique-odr-a.cpp", directory: "") 92 !6 = !{!7, !9} 93 !7 = !DIDerivedType(tag: DW_TAG_member, name: "data", line: 2, size: 32, align: 32, flags: DIFlagPrivate, file: !5, scope: !4, baseType: !8) 94 !8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 95 !9 = !DISubprogram(name: "getFoo", linkageName: "_ZN1A6getFooEv", line: 4, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagProtected | DIFlagPrototyped, isOptimized: false, scopeLine: 4, file: !5, scope: !4, type: !10) 96 !10 = !DISubroutineType(types: !11) 97 !11 = !{null, !12} 98 !12 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !4) 99 !15 = distinct !DISubprogram(name: "baz", linkageName: "_Z3bazv", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 11, file: !5, scope: !16, type: !17, variables: !2) 100 !16 = !DIFile(filename: "type-unique-odr-a.cpp", directory: "") 101 !17 = !DISubroutineType(types: !18) 102 !18 = !{null} 103 !19 = distinct !DISubprogram(name: "bar", linkageName: "_ZL3barv", line: 7, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 7, file: !5, scope: !16, type: !17, variables: !2) 104 !20 = !{i32 2, !"Dwarf Version", i32 4} 105 !21 = !{i32 1, !"Debug Info Version", i32 3} 106 !22 = !{!"clang version 3.5.0 "} 107 !23 = !DILocation(line: 11, scope: !15) 108 !24 = !DILocalVariable(name: "a", line: 8, scope: !19, file: !16, type: !4) 109 !25 = !DILocation(line: 8, scope: !19) 110 !26 = !DILocation(line: 9, scope: !19) 111
