forked from OSchip/llvm-project
[codeview] Don't record UDTs for anonymous structs
MSVC makes up names for these anonymous structs, but we don't (yet). Eventually Clang should use getTypedefNameForAnonDecl() to put some name in the debug info, and we can update the test case when that happens. llvm-svn: 274391
This commit is contained in:
Reid Kleckner
parent
0efaa349e4
commit
ad56ea3129
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@ -873,6 +873,10 @@ void CodeViewDebug::beginFunction(const MachineFunction *MF) {
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}
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void CodeViewDebug::addToUDTs(const DIType *Ty, TypeIndex TI) {
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// Don't record empty UDTs.
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if (Ty->getName().empty())
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return;
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SmallVector<StringRef, 5> QualifiedNameComponents;
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const DISubprogram *ClosestSubprogram = getQualifiedNameComponents(
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Ty->getScope().resolve(), QualifiedNameComponents);
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@ -15,6 +15,8 @@ target triple = "i686-pc-windows-msvc18.0.0"
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; p.x = s->x;
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; return p.f;
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; }
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; typedef struct { int x; } U;
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; U u;
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; CHECK: ProcStart {
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; CHECK: DisplayName: f
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@ -43,82 +45,95 @@ target triple = "i686-pc-windows-msvc18.0.0"
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; CHECK: UDT {
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; CHECK-NEXT: Type: S (0x{{[0-9A-F]+}})
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; CHECK-NEXT: UDTName: S
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; CHECK: UDT {
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; CHECK-NEXT: Type: 0x{{[0-9A-F]+}}
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; CHECK-NEXT: UDTName: U
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; CHECK-NOT: UDT {
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%struct.U = type { i32 }
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%struct.S = type { i32 }
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%union.pun = type { i32 }
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@"\01?u@@3UU@@A" = global %struct.U zeroinitializer, align 4
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; Function Attrs: nounwind uwtable
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define void @"\01?f@@YAXXZ"() #0 !dbg !7 {
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define void @"\01?f@@YAXXZ"() #0 !dbg !14 {
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entry:
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%f = alloca i32, align 4
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call void @llvm.dbg.declare(metadata i32* %f, metadata !10, metadata !13), !dbg !14
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ret void, !dbg !15
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call void @llvm.dbg.declare(metadata i32* %f, metadata !17, metadata !19), !dbg !20
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ret void, !dbg !21
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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; Function Attrs: nounwind uwtable
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define float @"\01?g@@YAMPEAUS@@@Z"(%struct.S* %s) #0 !dbg !16 {
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define float @"\01?g@@YAMPEAUS@@@Z"(%struct.S* %s) #0 !dbg !22 {
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entry:
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%s.addr = alloca %struct.S*, align 8
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%p = alloca %union.pun, align 4
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store %struct.S* %s, %struct.S** %s.addr, align 8
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call void @llvm.dbg.declare(metadata %struct.S** %s.addr, metadata !24, metadata !13), !dbg !25
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call void @llvm.dbg.declare(metadata %union.pun* %p, metadata !26, metadata !13), !dbg !31
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%0 = load %struct.S*, %struct.S** %s.addr, align 8, !dbg !32
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%x = getelementptr inbounds %struct.S, %struct.S* %0, i32 0, i32 0, !dbg !33
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%1 = load i32, i32* %x, align 4, !dbg !33
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%x1 = bitcast %union.pun* %p to i32*, !dbg !34
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store i32 %1, i32* %x1, align 4, !dbg !35
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%f = bitcast %union.pun* %p to float*, !dbg !36
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%2 = load float, float* %f, align 4, !dbg !36
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ret float %2, !dbg !37
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call void @llvm.dbg.declare(metadata %struct.S** %s.addr, metadata !30, metadata !19), !dbg !31
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call void @llvm.dbg.declare(metadata %union.pun* %p, metadata !32, metadata !19), !dbg !37
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%0 = load %struct.S*, %struct.S** %s.addr, align 8, !dbg !38
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%x = getelementptr inbounds %struct.S, %struct.S* %0, i32 0, i32 0, !dbg !39
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%1 = load i32, i32* %x, align 4, !dbg !39
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%x1 = bitcast %union.pun* %p to i32*, !dbg !40
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store i32 %1, i32* %x1, align 4, !dbg !41
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%f = bitcast %union.pun* %p to float*, !dbg !42
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%2 = load float, float* %f, align 4, !dbg !42
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ret float %2, !dbg !43
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}
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attributes #0 = { nounwind uwtable "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" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nounwind readnone }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!llvm.module.flags = !{!10, !11, !12}
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!llvm.ident = !{!13}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.9.0 (trunk 273566) (llvm/trunk 273570)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "t.cpp", directory: "/usr/local/google/work/llvm/build.release")
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.9.0 ", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !3)
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!1 = !DIFile(filename: "t.cpp", directory: "D:\5Csrc\5Cllvm\5Cbuild")
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!2 = !{}
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!3 = !{i32 2, !"CodeView", i32 1}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"PIC Level", i32 2}
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!6 = !{!"clang version 3.9.0 (trunk 273566) (llvm/trunk 273570)"}
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!7 = distinct !DISubprogram(name: "f", linkageName: "\01?f@@YAXXZ", scope: !1, file: !1, line: 1, type: !8, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
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!8 = !DISubroutineType(types: !9)
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!9 = !{null}
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!10 = !DILocalVariable(name: "f", scope: !7, file: !1, line: 3, type: !11)
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!11 = !DIDerivedType(tag: DW_TAG_typedef, name: "FOO", scope: !7, file: !1, line: 2, baseType: !12)
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!12 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!13 = !DIExpression()
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!14 = !DILocation(line: 3, column: 7, scope: !7)
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!15 = !DILocation(line: 4, column: 1, scope: !7)
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!16 = distinct !DISubprogram(name: "g", linkageName: "\01?g@@YAMPEAUS@@@Z", scope: !1, file: !1, line: 7, type: !17, isLocal: false, isDefinition: true, scopeLine: 7, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
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!17 = !DISubroutineType(types: !18)
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!18 = !{!19, !20}
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!19 = !DIBasicType(name: "float", size: 32, align: 32, encoding: DW_ATE_float)
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!20 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !21, size: 64, align: 64)
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!21 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "S", file: !1, line: 6, size: 32, align: 32, elements: !22, identifier: ".?AUS@@")
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!22 = !{!23}
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!23 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !21, file: !1, line: 6, baseType: !12, size: 32, align: 32)
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!24 = !DILocalVariable(name: "s", arg: 1, scope: !16, file: !1, line: 7, type: !20)
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!25 = !DILocation(line: 7, column: 12, scope: !16)
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!26 = !DILocalVariable(name: "p", scope: !16, file: !1, line: 8, type: !27)
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!27 = distinct !DICompositeType(tag: DW_TAG_union_type, name: "pun", scope: !16, file: !1, line: 8, size: 32, align: 32, elements: !28)
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!28 = !{!29, !30}
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!29 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !27, file: !1, line: 8, baseType: !12, size: 32, align: 32)
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!30 = !DIDerivedType(tag: DW_TAG_member, name: "f", scope: !27, file: !1, line: 8, baseType: !19, size: 32, align: 32)
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!31 = !DILocation(line: 8, column: 33, scope: !16)
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!32 = !DILocation(line: 9, column: 9, scope: !16)
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!33 = !DILocation(line: 9, column: 12, scope: !16)
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!34 = !DILocation(line: 9, column: 5, scope: !16)
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!35 = !DILocation(line: 9, column: 7, scope: !16)
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!36 = !DILocation(line: 10, column: 12, scope: !16)
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!37 = !DILocation(line: 10, column: 3, scope: !16)
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!3 = !{!4}
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!4 = distinct !DIGlobalVariable(name: "u", linkageName: "\01?u@@3UU@@A", scope: !0, file: !1, line: 13, type: !5, isLocal: false, isDefinition: true, variable: %struct.U* @"\01?u@@3UU@@A")
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!5 = !DIDerivedType(tag: DW_TAG_typedef, name: "U", file: !1, line: 12, baseType: !6)
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!6 = distinct !DICompositeType(tag: DW_TAG_structure_type, file: !1, line: 12, size: 32, align: 32, elements: !7, identifier: ".?AUU@@")
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!7 = !{!8}
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!8 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !6, file: !1, line: 12, baseType: !9, size: 32, align: 32)
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!9 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!10 = !{i32 2, !"CodeView", i32 1}
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!11 = !{i32 2, !"Debug Info Version", i32 3}
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!12 = !{i32 1, !"PIC Level", i32 2}
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!13 = !{!"clang version 3.9.0 "}
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!14 = distinct !DISubprogram(name: "f", linkageName: "\01?f@@YAXXZ", scope: !1, file: !1, line: 1, type: !15, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
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!15 = !DISubroutineType(types: !16)
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!16 = !{null}
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!17 = !DILocalVariable(name: "f", scope: !14, file: !1, line: 3, type: !18)
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!18 = !DIDerivedType(tag: DW_TAG_typedef, name: "FOO", scope: !14, file: !1, line: 2, baseType: !9)
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!19 = !DIExpression()
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!20 = !DILocation(line: 3, column: 7, scope: !14)
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!21 = !DILocation(line: 4, column: 1, scope: !14)
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!22 = distinct !DISubprogram(name: "g", linkageName: "\01?g@@YAMPEAUS@@@Z", scope: !1, file: !1, line: 7, type: !23, isLocal: false, isDefinition: true, scopeLine: 7, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
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!23 = !DISubroutineType(types: !24)
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!24 = !{!25, !26}
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!25 = !DIBasicType(name: "float", size: 32, align: 32, encoding: DW_ATE_float)
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!26 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !27, size: 64, align: 64)
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!27 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "S", file: !1, line: 6, size: 32, align: 32, elements: !28, identifier: ".?AUS@@")
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!28 = !{!29}
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!29 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !27, file: !1, line: 6, baseType: !9, size: 32, align: 32)
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!30 = !DILocalVariable(name: "s", arg: 1, scope: !22, file: !1, line: 7, type: !26)
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!31 = !DILocation(line: 7, column: 12, scope: !22)
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!32 = !DILocalVariable(name: "p", scope: !22, file: !1, line: 8, type: !33)
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!33 = distinct !DICompositeType(tag: DW_TAG_union_type, name: "pun", scope: !22, file: !1, line: 8, size: 32, align: 32, elements: !34)
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!34 = !{!35, !36}
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!35 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !33, file: !1, line: 8, baseType: !9, size: 32, align: 32)
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!36 = !DIDerivedType(tag: DW_TAG_member, name: "f", scope: !33, file: !1, line: 8, baseType: !25, size: 32, align: 32)
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!37 = !DILocation(line: 8, column: 33, scope: !22)
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!38 = !DILocation(line: 9, column: 9, scope: !22)
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!39 = !DILocation(line: 9, column: 12, scope: !22)
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!40 = !DILocation(line: 9, column: 5, scope: !22)
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!41 = !DILocation(line: 9, column: 7, scope: !22)
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!42 = !DILocation(line: 10, column: 12, scope: !22)
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!43 = !DILocation(line: 10, column: 3, scope: !22)
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