• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
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'
33source_filename = "t.cpp"
34target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
35target 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
48define internal void @"\01??__Erequire_complete@@YAXXZ"() #0 !dbg !27 {
49entry:
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
55declare %struct.UseCompleteType* @"\01??0UseCompleteType@@QEAA@XZ"(%struct.UseCompleteType* returned) unnamed_addr #1
56
57; Function Attrs: nounwind
58define linkonce_odr void @"\01??_DUseCompleteType@@QEAA@XZ"(%struct.UseCompleteType* %this) unnamed_addr #0 comdat align 2 !dbg !31 {
59entry:
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
70define internal void @"\01??__Frequire_complete@@YAXXZ"() #0 !dbg !37 {
71entry:
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
77declare i32 @atexit(void ()*) #2
78
79; Function Attrs: nounwind readnone
80declare void @llvm.dbg.declare(metadata, metadata, metadata) #3
81
82declare void @"\01??1UseCompleteType@@QEAA@XZ"(%struct.UseCompleteType*) unnamed_addr #1
83
84; Function Attrs: nounwind
85define internal void @_GLOBAL__sub_I_t.cpp() #0 !dbg !41 {
86entry:
87  call void @"\01??__Erequire_complete@@YAXXZ"(), !dbg !43
88  ret void
89}
90
91attributes #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" }
92attributes #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" }
93attributes #2 = { nounwind }
94attributes #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, retainedNodes: !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, retainedNodes: !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, retainedNodes: !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, retainedNodes: !4)
142!42 = !DISubroutineType(types: !4)
143!43 = !DILocation(line: 0, scope: !41)
144
145