test/DebugInfo/COFF/vtable-optzn-array.ll

   1 ; RUN: llc < %s -filetype=obj -o - | llvm-readobj - -codeview | FileCheck %s
   2
   3 ; We used to crash on this input because UnicodeString is a forward declaration
   4 ; with no size. Our array type logic wanted to assert the size of the elements
   5 ; times the length matched the overall size.
   6
   7 ; C++ source to regenerate:
   8 ; struct UnicodeString;
   9 ; struct GetFwdDecl {
  10 ;   static UnicodeString format;
  11 ; };
  12 ; GetFwdDecl force_fwd_decl;
  13 ; struct UnicodeString {
  14 ; private:
  15 ;   virtual ~UnicodeString();
  16 ; };
  17 ; struct UseCompleteType {
  18 ;   UseCompleteType();
  19 ;   ~UseCompleteType();
  20 ;   UnicodeString currencySpcAfterSym[1];
  21 ; };
  22 ; UseCompleteType require_complete;
  23
  24 ; CHECK:      Array ({{.*}}) {
  25 ; CHECK-NEXT:   TypeLeafKind: LF_ARRAY (0x1503)
  26 ; CHECK-NEXT:   ElementType: UnicodeString
  27 ; CHECK-NEXT:   IndexType: unsigned __int64 (0x23)
  28 ; CHECK-NEXT:   SizeOf: 8
  29 ; CHECK-NEXT:   Name:
  30 ; CHECK-NEXT: }
  31
  32 ; ModuleID = 't.cpp'
  33 source_filename = "t.cpp"
  34 target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
  35 target triple = "x86_64-pc-windows-msvc"
  36
  37 %struct.GetFwdDecl = type { i8 }
  38 %struct.UseCompleteType = type { [1 x %struct.UnicodeString] }
  39 %struct.UnicodeString = type { i32 (...)** }
  40
  41 $"\01??_DUseCompleteType@@QEAA@XZ" = comdat any
  42
  43 @"\01?force_fwd_decl@@3UGetFwdDecl@@A" = global %struct.GetFwdDecl zeroinitializer, align 1, !dbg !0
  44 @"\01?require_complete@@3UUseCompleteType@@A" = global %struct.UseCompleteType zeroinitializer, align 8, !dbg !6
  45 @llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__sub_I_t.cpp, i8* null }]
  46
  47 ; Function Attrs: nounwind
  48 define internal void @"\01??__Erequire_complete@@YAXXZ"() #0 !dbg !27 {
  49 entry:
  50   %call = call %struct.UseCompleteType* @"\01??0UseCompleteType@@QEAA@XZ"(%struct.UseCompleteType* @"\01?require_complete@@3UUseCompleteType@@A"), !dbg !30
  51   %0 = call i32 @atexit(void ()* @"\01??__Frequire_complete@@YAXXZ") #2, !dbg !30
  52   ret void, !dbg !30
  53 }
  54
  55 declare %struct.UseCompleteType* @"\01??0UseCompleteType@@QEAA@XZ"(%struct.UseCompleteType* returned) unnamed_addr #1
  56
  57 ; Function Attrs: nounwind
  58 define linkonce_odr void @"\01??_DUseCompleteType@@QEAA@XZ"(%struct.UseCompleteType* %this) unnamed_addr #0 comdat align 2 !dbg !31 {
  59 entry:
  60   %this.addr = alloca %struct.UseCompleteType*, align 8
  61   store %struct.UseCompleteType* %this, %struct.UseCompleteType** %this.addr, align 8
  62   call void @llvm.dbg.declare(metadata %struct.UseCompleteType** %this.addr, metadata !32, metadata !34), !dbg !35
  63   %this1 = load %struct.UseCompleteType*, %struct.UseCompleteType** %this.addr, align 8
  64   call void @"\01??1UseCompleteType@@QEAA@XZ"(%struct.UseCompleteType* %this1), !dbg !36
  65   ret void, !dbg !36
  66 }
  67
  68 ; Function Attrs: nounwind
  69
  70 define internal void @"\01??__Frequire_complete@@YAXXZ"() #0 !dbg !37 {
  71 entry:
  72   call void @"\01??_DUseCompleteType@@QEAA@XZ"(%struct.UseCompleteType* @"\01?require_complete@@3UUseCompleteType@@A"), !dbg !38
  73   ret void, !dbg !39
  74 }
  75
  76 ; Function Attrs: nounwind
  77 declare i32 @atexit(void ()*) #2
  78
  79 ; Function Attrs: nounwind readnone
  80 declare void @llvm.dbg.declare(metadata, metadata, metadata) #3
  81
  82 declare void @"\01??1UseCompleteType@@QEAA@XZ"(%struct.UseCompleteType*) unnamed_addr #1
  83
  84 ; Function Attrs: nounwind
  85 define internal void @_GLOBAL__sub_I_t.cpp() #0 !dbg !41 {
  86 entry:
  87   call void @"\01??__Erequire_complete@@YAXXZ"(), !dbg !43
  88   ret void
  89 }
  90
  91 attributes #0 = { nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "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-features"="+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
  92 attributes #1 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-features"="+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
  93 attributes #2 = { nounwind }
  94 attributes #3 = { nounwind readnone }
  95
  96 !llvm.dbg.cu = !{!2}
  97 !llvm.module.flags = !{!24, !25}
  98 !llvm.ident = !{!26}
  99
 100 !0 = distinct !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
 101 !1 = !DIGlobalVariable(name: "force_fwd_decl", linkageName: "\01?force_fwd_decl@@3UGetFwdDecl@@A", scope: !2, file: !8, line: 5, type: !21, isLocal: false, isDefinition: true)
 102 !2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 4.0.0 (trunk 281056) (llvm/trunk 281051)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)
 103 !3 = !DIFile(filename: "<stdin>", directory: "C:\5Csrc\5Cllvm\5Cbuild")
 104 !4 = !{}
 105 !5 = !{!0, !6}
 106 !6 = distinct !DIGlobalVariableExpression(var: !7, expr: !DIExpression())
 107 !7 = !DIGlobalVariable(name: "require_complete", linkageName: "\01?require_complete@@3UUseCompleteType@@A", scope: !2, file: !8, line: 15, type: !9, isLocal: false, isDefinition: true)
 108 !8 = !DIFile(filename: "t.cpp", directory: "C:\5Csrc\5Cllvm\5Cbuild")
 109 !9 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "UseCompleteType", file: !8, line: 10, size: 64, align: 64, elements: !10, identifier: ".?AUUseCompleteType@@")
 110 !10 = !{!11, !16, !20}
 111 !11 = !DIDerivedType(tag: DW_TAG_member, name: "currencySpcAfterSym", scope: !9, file: !8, line: 13, baseType: !12, size: 64, align: 64)
 112 !12 = !DICompositeType(tag: DW_TAG_array_type, baseType: !13, size: 64, align: 64, elements: !14)
 113 !13 = !DICompositeType(tag: DW_TAG_structure_type, name: "UnicodeString", file: !8, line: 1, flags: DIFlagFwdDecl, identifier: ".?AUUnicodeString@@")
 114 !14 = !{!15}
 115 !15 = !DISubrange(count: 1)
 116 !16 = !DISubprogram(name: "UseCompleteType", scope: !9, file: !8, line: 11, type: !17, isLocal: false, isDefinition: false, scopeLine: 11, flags: DIFlagPrototyped, isOptimized: false)
 117 !17 = !DISubroutineType(types: !18)
 118 !18 = !{null, !19}
 119 !19 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !9, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
 120 !20 = !DISubprogram(name: "~UseCompleteType", scope: !9, file: !8, line: 12, type: !17, isLocal: false, isDefinition: false, scopeLine: 12, flags: DIFlagPrototyped, isOptimized: false)
 121 !21 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "GetFwdDecl", file: !8, line: 2, size: 8, align: 8, elements: !22, identifier: ".?AUGetFwdDecl@@")
 122 !22 = !{!23}
 123 !23 = !DIDerivedType(tag: DW_TAG_member, name: "format", scope: !21, file: !8, line: 3, baseType: !13, flags: DIFlagStaticMember)
 124 !24 = !{i32 2, !"CodeView", i32 1}
 125 !25 = !{i32 2, !"Debug Info Version", i32 3}
 126 !26 = !{!"clang version 4.0.0 (trunk 281056) (llvm/trunk 281051)"}
 127 !27 = distinct !DISubprogram(name: "??__Erequire_complete@@YAXXZ", scope: !8, file: !8, line: 15, type: !28, isLocal: true, isDefinition: true, scopeLine: 15, flags: DIFlagPrototyped, isOptimized: false, unit: !2, variables: !4)
 128 !28 = !DISubroutineType(types: !29)
 129 !29 = !{null}
 130 !30 = !DILocation(line: 15, scope: !27)
 131 !31 = distinct !DISubprogram(name: "~UseCompleteType", linkageName: "\01??_DUseCompleteType@@QEAA@XZ", scope: !9, file: !8, line: 12, type: !17, isLocal: false, isDefinition: true, scopeLine: 15, flags: DIFlagPrototyped, isOptimized: false, unit: !2, declaration: !20, variables: !4)
 132 !32 = !DILocalVariable(name: "this", arg: 1, scope: !31, type: !33, flags: DIFlagArtificial | DIFlagObjectPointer)
 133 !33 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !9, size: 64, align: 64)
 134 !34 = !DIExpression()
 135 !35 = !DILocation(line: 0, scope: !31)
 136 !36 = !DILocation(line: 15, scope: !31)
 137 !37 = distinct !DISubprogram(name: "??__Frequire_complete@@YAXXZ", scope: !3, file: !3, line: 15, type: !28, isLocal: true, isDefinition: true, scopeLine: 15, flags: DIFlagPrototyped, isOptimized: false, unit: !2, variables: !4)
 138 !38 = !DILocation(line: 15, scope: !37)
 139 !39 = !DILocation(line: 15, scope: !40)
 140 !40 = !DILexicalBlockFile(scope: !37, file: !8, discriminator: 0)
 141 !41 = distinct !DISubprogram(linkageName: "_GLOBAL__sub_I_t.cpp", scope: !3, file: !3, type: !42, isLocal: true, isDefinition: true, flags: DIFlagArtificial, isOptimized: false, unit: !2, variables: !4)
 142 !42 = !DISubroutineType(types: !4)
 143 !43 = !DILocation(line: 0, scope: !41)
 144