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llvm-mirror/test/DebugInfo/COFF/virtual-methods.ll
Shiva Chen a2029fa58e [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 
In order to set breakpoints on labels and list source code around
labels, we need collect debug information for labels, i.e., label
name, the function label belong, line number in the file, and the
address label located. In order to keep these information in LLVM
IR and to allow backend to generate debug information correctly.
We create a new kind of metadata for labels, DILabel. The format
of DILabel is

!DILabel(scope: !1, name: "foo", file: !2, line: 3)

We hope to keep debug information as much as possible even the
code is optimized. So, we create a new kind of intrinsic for label
metadata to avoid the metadata is eliminated with basic block.
The intrinsic will keep existing if we keep it from optimized out.
The format of the intrinsic is

llvm.dbg.label(metadata !1)

It has only one argument, that is the DILabel metadata. The
intrinsic will follow the label immediately. Backend could get the
label metadata through the intrinsic's parameter.

We also create DIBuilder API for labels to be used by Frontend.
Frontend could use createLabel() to allocate DILabel objects, and use
insertLabel() to insert llvm.dbg.label intrinsic in LLVM IR.

Differential Revision: https://reviews.llvm.org/D45024

Patch by Hsiangkai Wang.

llvm-svn: 331841
2018-05-09 02:40:45 +00:00

444 lines
24 KiB
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; RUN: llc < %s -filetype=obj | llvm-readobj - -codeview | FileCheck %s
; C++ source used to generate IR:
; $ cat t.cpp
; struct A {
; virtual int f();
; };
; struct B {
; virtual int g() = 0;
; };
; struct C : A, B {
; int c = 42;
; virtual int g();
; };
; int C::g() { return c; }
; struct D : virtual B {
; int d = 13;
; virtual int g();
; };
; int D::g() { return d; }
; $ clang t.cpp -S -emit-llvm -fstandalone-debug -g -gcodeview -o t.ll
; A::f
; CHECK: MemberFunction ({{.*}}) {
; CHECK-NEXT: TypeLeafKind: LF_MFUNCTION (0x1009)
; CHECK-NEXT: ReturnType: int (0x74)
; CHECK-NEXT: ClassType: A ({{.*}})
; CHECK-NEXT: ThisType: A* ({{.*}})
; CHECK-NEXT: CallingConvention: NearC (0x0)
; CHECK-NEXT: FunctionOptions [ (0x0)
; CHECK-NEXT: ]
; CHECK-NEXT: NumParameters: 0
; CHECK-NEXT: ArgListType: () ({{.*}})
; CHECK-NEXT: ThisAdjustment: 0
; CHECK-NEXT: }
; A::g
; CHECK: MemberFunction ({{.*}}) {
; CHECK-NEXT: TypeLeafKind: LF_MFUNCTION (0x1009)
; CHECK-NEXT: ReturnType: int (0x74)
; CHECK-NEXT: ClassType: B ({{.*}})
; CHECK-NEXT: ThisType: B* ({{.*}})
; CHECK-NEXT: CallingConvention: NearC (0x0)
; CHECK-NEXT: FunctionOptions [ (0x0)
; CHECK-NEXT: ]
; CHECK-NEXT: NumParameters: 0
; CHECK-NEXT: ArgListType: () ({{.*}})
; CHECK-NEXT: ThisAdjustment: 0
; CHECK-NEXT: }
; C::g
; CHECK: MemberFunction ([[C_g:.*]]) {
; CHECK-NEXT: TypeLeafKind: LF_MFUNCTION (0x1009)
; CHECK-NEXT: ReturnType: int (0x74)
; CHECK-NEXT: ClassType: C ({{.*}})
; CHECK-NEXT: ThisType: C* ({{.*}})
; CHECK-NEXT: CallingConvention: NearC (0x0)
; CHECK-NEXT: FunctionOptions [ (0x0)
; CHECK-NEXT: ]
; CHECK-NEXT: NumParameters: 0
; CHECK-NEXT: ArgListType: () ({{.*}})
; CHECK-NEXT: ThisAdjustment: 8
; CHECK-NEXT: }
; CHECK: FieldList ({{.*}}) {
; CHECK: OneMethod {
; CHECK-NEXT: TypeLeafKind: LF_ONEMETHOD (0x1511)
; CHECK-NEXT: AccessSpecifier: Public (0x3)
; CHECK-NEXT: MethodKind: Virtual (0x1)
; CHECK-NEXT: Type: int C::() ([[C_g]])
; CHECK-NEXT: Name: g
; CHECK-NEXT: }
; CHECK-NEXT: }
; D::g
; CHECK: MemberFunction ([[D_g:.*]]) {
; CHECK-NEXT: TypeLeafKind: LF_MFUNCTION (0x1009)
; CHECK-NEXT: ReturnType: int (0x74)
; CHECK-NEXT: ClassType: D ({{.*}})
; CHECK-NEXT: ThisType: D* ({{.*}})
; CHECK-NEXT: CallingConvention: NearC (0x0)
; CHECK-NEXT: FunctionOptions [ (0x0)
; CHECK-NEXT: ]
; CHECK-NEXT: NumParameters: 0
; CHECK-NEXT: ArgListType: () ({{.*}})
; CHECK-NEXT: ThisAdjustment: 16
; CHECK-NEXT: }
; CHECK: FieldList ({{.*}}) {
; CHECK: OneMethod {
; CHECK-NEXT: TypeLeafKind: LF_ONEMETHOD (0x1511)
; CHECK-NEXT: AccessSpecifier: Public (0x3)
; CHECK-NEXT: MethodKind: Virtual (0x1)
; CHECK-NEXT: Type: int D::() ([[D_g]])
; CHECK-NEXT: Name: g
; CHECK-NEXT: }
; CHECK-NEXT: }
; Need to skip constructor IDs...
; CHECK: MemberFuncId ({{.*}}) {
; CHECK: TypeLeafKind: LF_MFUNC_ID (0x1602)
; CHECK: ClassType: A
; CHECK: FunctionType: void A::()
; CHECK: Name: A
; CHECK: }
; CHECK: MemberFuncId ({{.*}}) {
; CHECK: TypeLeafKind: LF_MFUNC_ID (0x1602)
; CHECK: ClassType: B
; CHECK: FunctionType: void B::()
; CHECK: Name: B
; CHECK: }
; CHECK: MemberFuncId ({{.*}}) {
; CHECK: TypeLeafKind: LF_MFUNC_ID (0x1602)
; CHECK: ClassType: C
; CHECK: FunctionType: void C::()
; CHECK: Name: C
; CHECK: }
; CHECK: MemberFuncId ({{.*}}) {
; CHECK: TypeLeafKind: LF_MFUNC_ID (0x1602)
; CHECK: ClassType: D
; CHECK: FunctionType: void D::()
; CHECK: Name: D
; CHECK: }
; CHECK: MemberFuncId ({{.*}}) {
; CHECK-NEXT: TypeLeafKind: LF_MFUNC_ID (0x1602)
; CHECK-NEXT: ClassType: C ({{.*}})
; CHECK-NEXT: FunctionType: int C::() ([[C_g]])
; CHECK-NEXT: Name: g
; CHECK-NEXT: }
; CHECK: MemberFuncId ({{.*}}) {
; CHECK-NEXT: TypeLeafKind: LF_MFUNC_ID (0x1602)
; CHECK-NEXT: ClassType: D ({{.*}})
; CHECK-NEXT: FunctionType: int D::() ([[D_g]])
; CHECK-NEXT: Name: g
; CHECK-NEXT: }
; ModuleID = 't.cpp'
source_filename = "t.cpp"
target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-pc-windows-msvc19.0.23918"
%struct.A = type { i32 (...)** }
%struct.B = type { i32 (...)** }
%struct.C = type { %struct.A, %struct.B, i32 }
%struct.D = type { i32*, i32, %struct.B }
$"\01??0A@@QEAA@XZ" = comdat any
$"\01??0B@@QEAA@XZ" = comdat any
$"\01??0C@@QEAA@XZ" = comdat any
$"\01??0D@@QEAA@XZ" = comdat any
$"\01?g@C@@UEAAHXZ" = comdat any
$"\01?g@D@@UEAAHXZ" = comdat any
$"\01??_7A@@6B@" = comdat any
$"\01??_7B@@6B@" = comdat any
$"\01??_7C@@6BA@@@" = comdat any
$"\01??_7C@@6BB@@@" = comdat any
$"\01??_8D@@7B@" = comdat any
$"\01??_7D@@6B@" = comdat any
@"\01??_7A@@6B@" = linkonce_odr unnamed_addr constant [1 x i8*] [i8* bitcast (i32 (%struct.A*)* @"\01?f@A@@UEAAHXZ" to i8*)], comdat
@"\01??_7B@@6B@" = linkonce_odr unnamed_addr constant [1 x i8*] [i8* bitcast (i32 (%struct.B*)* @"\01?g@B@@UEAAHXZ" to i8*)], comdat
@"\01??_7C@@6BA@@@" = linkonce_odr unnamed_addr constant [1 x i8*] [i8* bitcast (i32 (%struct.A*)* @"\01?f@A@@UEAAHXZ" to i8*)], comdat
@"\01??_7C@@6BB@@@" = linkonce_odr unnamed_addr constant [1 x i8*] [i8* bitcast (i32 (i8*)* @"\01?g@C@@UEAAHXZ" to i8*)], comdat
@"\01??_8D@@7B@" = linkonce_odr unnamed_addr constant [2 x i32] [i32 0, i32 16], comdat
@"\01??_7D@@6B@" = linkonce_odr unnamed_addr constant [1 x i8*] [i8* bitcast (i32 (i8*)* @"\01?g@D@@UEAAHXZ" to i8*)], comdat
; Function Attrs: uwtable
define void @"\01?usetypes@@YAXXZ"() #0 !dbg !7 {
entry:
%a = alloca %struct.A, align 8
%b = alloca %struct.B, align 8
%c = alloca %struct.C, align 8
%d = alloca %struct.D, align 8
call void @llvm.dbg.declare(metadata %struct.A* %a, metadata !10, metadata !23), !dbg !24
%call = call %struct.A* @"\01??0A@@QEAA@XZ"(%struct.A* %a) #5, !dbg !24
call void @llvm.dbg.declare(metadata %struct.B* %b, metadata !25, metadata !23), !dbg !33
%call1 = call %struct.B* @"\01??0B@@QEAA@XZ"(%struct.B* %b) #5, !dbg !33
call void @llvm.dbg.declare(metadata %struct.C* %c, metadata !34, metadata !23), !dbg !44
%call2 = call %struct.C* @"\01??0C@@QEAA@XZ"(%struct.C* %c) #5, !dbg !44
call void @llvm.dbg.declare(metadata %struct.D* %d, metadata !45, metadata !23), !dbg !55
%call3 = call %struct.D* @"\01??0D@@QEAA@XZ"(%struct.D* %d, i32 1) #5, !dbg !55
%0 = bitcast %struct.C* %c to i8*, !dbg !56
%1 = getelementptr i8, i8* %0, i64 8, !dbg !56
%call4 = call i32 @"\01?g@C@@UEAAHXZ"(i8* %1), !dbg !56
ret void, !dbg !57
}
; Function Attrs: nounwind readnone
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
; Function Attrs: inlinehint nounwind uwtable
define linkonce_odr %struct.A* @"\01??0A@@QEAA@XZ"(%struct.A* returned %this) unnamed_addr #2 comdat align 2 !dbg !58 {
entry:
%this.addr = alloca %struct.A*, align 8
store %struct.A* %this, %struct.A** %this.addr, align 8
call void @llvm.dbg.declare(metadata %struct.A** %this.addr, metadata !62, metadata !23), !dbg !64
%this1 = load %struct.A*, %struct.A** %this.addr, align 8
%0 = bitcast %struct.A* %this1 to i32 (...)***, !dbg !65
store i32 (...)** bitcast ([1 x i8*]* @"\01??_7A@@6B@" to i32 (...)**), i32 (...)*** %0, align 8, !dbg !65
ret %struct.A* %this1, !dbg !65
}
; Function Attrs: inlinehint nounwind uwtable
define linkonce_odr %struct.B* @"\01??0B@@QEAA@XZ"(%struct.B* returned %this) unnamed_addr #2 comdat align 2 !dbg !66 {
entry:
%this.addr = alloca %struct.B*, align 8
store %struct.B* %this, %struct.B** %this.addr, align 8
call void @llvm.dbg.declare(metadata %struct.B** %this.addr, metadata !70, metadata !23), !dbg !72
%this1 = load %struct.B*, %struct.B** %this.addr, align 8
%0 = bitcast %struct.B* %this1 to i32 (...)***, !dbg !73
store i32 (...)** bitcast ([1 x i8*]* @"\01??_7B@@6B@" to i32 (...)**), i32 (...)*** %0, align 8, !dbg !73
ret %struct.B* %this1, !dbg !73
}
; Function Attrs: inlinehint nounwind uwtable
define linkonce_odr %struct.C* @"\01??0C@@QEAA@XZ"(%struct.C* returned %this) unnamed_addr #2 comdat align 2 !dbg !74 {
entry:
%this.addr = alloca %struct.C*, align 8
store %struct.C* %this, %struct.C** %this.addr, align 8
call void @llvm.dbg.declare(metadata %struct.C** %this.addr, metadata !78, metadata !23), !dbg !80
%this1 = load %struct.C*, %struct.C** %this.addr, align 8
%0 = bitcast %struct.C* %this1 to %struct.A*, !dbg !81
%call = call %struct.A* @"\01??0A@@QEAA@XZ"(%struct.A* %0) #5, !dbg !81
%1 = bitcast %struct.C* %this1 to i8*, !dbg !81
%2 = getelementptr inbounds i8, i8* %1, i64 8, !dbg !81
%3 = bitcast i8* %2 to %struct.B*, !dbg !81
%call2 = call %struct.B* @"\01??0B@@QEAA@XZ"(%struct.B* %3) #5, !dbg !81
%4 = bitcast %struct.C* %this1 to i32 (...)***, !dbg !81
store i32 (...)** bitcast ([1 x i8*]* @"\01??_7C@@6BA@@@" to i32 (...)**), i32 (...)*** %4, align 8, !dbg !81
%5 = bitcast %struct.C* %this1 to i8*, !dbg !81
%add.ptr = getelementptr inbounds i8, i8* %5, i64 8, !dbg !81
%6 = bitcast i8* %add.ptr to i32 (...)***, !dbg !81
store i32 (...)** bitcast ([1 x i8*]* @"\01??_7C@@6BB@@@" to i32 (...)**), i32 (...)*** %6, align 8, !dbg !81
%c = getelementptr inbounds %struct.C, %struct.C* %this1, i32 0, i32 2, !dbg !82
store i32 42, i32* %c, align 8, !dbg !82
ret %struct.C* %this1, !dbg !81
}
; Function Attrs: inlinehint nounwind uwtable
define linkonce_odr %struct.D* @"\01??0D@@QEAA@XZ"(%struct.D* returned %this, i32 %is_most_derived) unnamed_addr #2 comdat align 2 !dbg !83 {
entry:
%retval = alloca %struct.D*, align 8
%is_most_derived.addr = alloca i32, align 4
%this.addr = alloca %struct.D*, align 8
store i32 %is_most_derived, i32* %is_most_derived.addr, align 4
call void @llvm.dbg.declare(metadata i32* %is_most_derived.addr, metadata !87, metadata !23), !dbg !88
store %struct.D* %this, %struct.D** %this.addr, align 8
call void @llvm.dbg.declare(metadata %struct.D** %this.addr, metadata !89, metadata !23), !dbg !88
%this1 = load %struct.D*, %struct.D** %this.addr, align 8
store %struct.D* %this1, %struct.D** %retval, align 8
%is_most_derived2 = load i32, i32* %is_most_derived.addr, align 4
%is_complete_object = icmp ne i32 %is_most_derived2, 0, !dbg !91
br i1 %is_complete_object, label %ctor.init_vbases, label %ctor.skip_vbases, !dbg !91
ctor.init_vbases: ; preds = %entry
%this.int8 = bitcast %struct.D* %this1 to i8*, !dbg !91
%0 = getelementptr inbounds i8, i8* %this.int8, i64 0, !dbg !91
%vbptr.D = bitcast i8* %0 to i32**, !dbg !91
store i32* getelementptr inbounds ([2 x i32], [2 x i32]* @"\01??_8D@@7B@", i32 0, i32 0), i32** %vbptr.D, align 8, !dbg !91
%1 = bitcast %struct.D* %this1 to i8*, !dbg !91
%2 = getelementptr inbounds i8, i8* %1, i64 16, !dbg !91
%3 = bitcast i8* %2 to %struct.B*, !dbg !91
%call = call %struct.B* @"\01??0B@@QEAA@XZ"(%struct.B* %3) #5, !dbg !91
br label %ctor.skip_vbases, !dbg !91
ctor.skip_vbases: ; preds = %ctor.init_vbases, %entry
%4 = bitcast %struct.D* %this1 to i8*, !dbg !91
%vbptr = getelementptr inbounds i8, i8* %4, i64 0, !dbg !91
%5 = bitcast i8* %vbptr to i32**, !dbg !91
%vbtable = load i32*, i32** %5, align 8, !dbg !91
%6 = getelementptr inbounds i32, i32* %vbtable, i32 1, !dbg !91
%vbase_offs = load i32, i32* %6, align 4, !dbg !91
%7 = sext i32 %vbase_offs to i64, !dbg !91
%8 = add nsw i64 0, %7, !dbg !91
%9 = bitcast %struct.D* %this1 to i8*, !dbg !91
%add.ptr = getelementptr inbounds i8, i8* %9, i64 %8, !dbg !91
%10 = bitcast i8* %add.ptr to i32 (...)***, !dbg !91
store i32 (...)** bitcast ([1 x i8*]* @"\01??_7D@@6B@" to i32 (...)**), i32 (...)*** %10, align 8, !dbg !91
%d = getelementptr inbounds %struct.D, %struct.D* %this1, i32 0, i32 1, !dbg !92
store i32 13, i32* %d, align 8, !dbg !92
%11 = load %struct.D*, %struct.D** %retval, align 8, !dbg !91
ret %struct.D* %11, !dbg !91
}
; Function Attrs: nounwind uwtable
define linkonce_odr i32 @"\01?g@C@@UEAAHXZ"(i8*) unnamed_addr #3 comdat align 2 !dbg !93 {
entry:
%this.addr = alloca %struct.C*, align 8
%1 = getelementptr inbounds i8, i8* %0, i32 -8
%this = bitcast i8* %1 to %struct.C*
store %struct.C* %this, %struct.C** %this.addr, align 8
call void @llvm.dbg.declare(metadata %struct.C** %this.addr, metadata !94, metadata !23), !dbg !95
%this1 = load %struct.C*, %struct.C** %this.addr, align 8
%c = getelementptr inbounds %struct.C, %struct.C* %this1, i32 0, i32 2, !dbg !96
%2 = load i32, i32* %c, align 8, !dbg !96
ret i32 %2, !dbg !97
}
declare i32 @"\01?f@A@@UEAAHXZ"(%struct.A*) unnamed_addr #4
declare i32 @"\01?g@B@@UEAAHXZ"(%struct.B*) unnamed_addr #4
; Function Attrs: nounwind uwtable
define linkonce_odr i32 @"\01?g@D@@UEAAHXZ"(i8*) unnamed_addr #3 comdat align 2 !dbg !98 {
entry:
%this.addr = alloca %struct.D*, align 8
%1 = getelementptr inbounds i8, i8* %0, i32 -16
%this = bitcast i8* %1 to %struct.D*
store %struct.D* %this, %struct.D** %this.addr, align 8
call void @llvm.dbg.declare(metadata %struct.D** %this.addr, metadata !99, metadata !23), !dbg !100
%this1 = load %struct.D*, %struct.D** %this.addr, align 8
%d = getelementptr inbounds %struct.D, %struct.D* %this1, i32 0, i32 1, !dbg !101
%2 = load i32, i32* %d, align 8, !dbg !101
ret i32 %2, !dbg !102
}
attributes #0 = { 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" }
attributes #1 = { nounwind readnone }
attributes #2 = { inlinehint 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" }
attributes #3 = { 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" }
attributes #4 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="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" }
attributes #5 = { nounwind }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3, !4, !5}
!llvm.ident = !{!6}
!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)
!1 = !DIFile(filename: "t.cpp", directory: "D:\5Csrc\5Cllvm\5Cbuild")
!2 = !{}
!3 = !{i32 2, !"CodeView", i32 1}
!4 = !{i32 2, !"Debug Info Version", i32 3}
!5 = !{i32 1, !"PIC Level", i32 2}
!6 = !{!"clang version 3.9.0 "}
!7 = distinct !DISubprogram(name: "usetypes", linkageName: "\01?usetypes@@YAXXZ", scope: !1, file: !1, line: 15, type: !8, isLocal: false, isDefinition: true, scopeLine: 15, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
!8 = !DISubroutineType(types: !9)
!9 = !{null}
!10 = !DILocalVariable(name: "a", scope: !7, file: !1, line: 16, type: !11)
!11 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "A", file: !1, line: 1, size: 64, align: 64, elements: !12, vtableHolder: !11, identifier: ".?AUA@@")
!12 = !{!13, !19}
!13 = !DIDerivedType(tag: DW_TAG_member, name: "_vptr$A", scope: !1, file: !1, baseType: !14, size: 64, flags: DIFlagArtificial)
!14 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !15, size: 64)
!15 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "__vtbl_ptr_type", baseType: !16, size: 64)
!16 = !DISubroutineType(types: !17)
!17 = !{!18}
!18 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!19 = !DISubprogram(name: "f", linkageName: "\01?f@A@@UEAAHXZ", scope: !11, file: !1, line: 2, type: !20, isLocal: false, isDefinition: false, scopeLine: 2, containingType: !11, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 0, flags: DIFlagPrototyped | DIFlagIntroducedVirtual, isOptimized: false)
!20 = !DISubroutineType(types: !21)
!21 = !{!18, !22}
!22 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !11, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
!23 = !DIExpression()
!24 = !DILocation(line: 16, column: 5, scope: !7)
!25 = !DILocalVariable(name: "b", scope: !7, file: !1, line: 17, type: !26)
!26 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "B", file: !1, line: 4, size: 64, align: 64, elements: !27, vtableHolder: !26, identifier: ".?AUB@@")
!27 = !{!28, !29}
!28 = !DIDerivedType(tag: DW_TAG_member, name: "_vptr$B", scope: !1, file: !1, baseType: !14, size: 64, flags: DIFlagArtificial)
!29 = !DISubprogram(name: "g", linkageName: "\01?g@B@@UEAAHXZ", scope: !26, file: !1, line: 5, type: !30, isLocal: false, isDefinition: false, scopeLine: 5, containingType: !26, virtuality: DW_VIRTUALITY_pure_virtual, virtualIndex: 0, flags: DIFlagPrototyped | DIFlagIntroducedVirtual, isOptimized: false)
!30 = !DISubroutineType(types: !31)
!31 = !{!18, !32}
!32 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !26, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
!33 = !DILocation(line: 17, column: 5, scope: !7)
!34 = !DILocalVariable(name: "c", scope: !7, file: !1, line: 18, type: !35)
!35 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "C", file: !1, line: 7, size: 192, align: 64, elements: !36, vtableHolder: !11, identifier: ".?AUC@@")
!36 = !{!37, !38, !39, !40}
!37 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !35, baseType: !11)
!38 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !35, baseType: !26, offset: 64)
!39 = !DIDerivedType(tag: DW_TAG_member, name: "c", scope: !35, file: !1, line: 8, baseType: !18, size: 32, align: 32, offset: 128)
!40 = !DISubprogram(name: "g", linkageName: "\01?g@C@@UEAAHXZ", scope: !35, file: !1, line: 9, type: !41, isLocal: false, isDefinition: false, scopeLine: 9, containingType: !35, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 0, thisAdjustment: 8, flags: DIFlagPrototyped, isOptimized: false)
!41 = !DISubroutineType(types: !42)
!42 = !{!18, !43}
!43 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !35, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
!44 = !DILocation(line: 18, column: 5, scope: !7)
!45 = !DILocalVariable(name: "d", scope: !7, file: !1, line: 19, type: !46)
!46 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "D", file: !1, line: 11, size: 192, align: 64, elements: !47, vtableHolder: !46, identifier: ".?AUD@@")
!47 = !{!48, !49, !50, !51}
!48 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !46, baseType: !26, offset: 4, flags: DIFlagVirtual)
!49 = !DIDerivedType(tag: DW_TAG_member, name: "_vptr$D", scope: !1, file: !1, baseType: !14, size: 64, flags: DIFlagArtificial)
!50 = !DIDerivedType(tag: DW_TAG_member, name: "d", scope: !46, file: !1, line: 12, baseType: !18, size: 32, align: 32, offset: 64)
!51 = !DISubprogram(name: "g", linkageName: "\01?g@D@@UEAAHXZ", scope: !46, file: !1, line: 13, type: !52, isLocal: false, isDefinition: false, scopeLine: 13, containingType: !46, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 0, thisAdjustment: 16, flags: DIFlagPrototyped, isOptimized: false)
!52 = !DISubroutineType(types: !53)
!53 = !{!18, !54}
!54 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !46, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
!55 = !DILocation(line: 19, column: 5, scope: !7)
!56 = !DILocation(line: 20, column: 5, scope: !7)
!57 = !DILocation(line: 21, column: 1, scope: !7)
!58 = distinct !DISubprogram(name: "A", linkageName: "\01??0A@@QEAA@XZ", scope: !11, file: !1, line: 1, type: !59, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !61, retainedNodes: !2)
!59 = !DISubroutineType(types: !60)
!60 = !{null, !22}
!61 = !DISubprogram(name: "A", scope: !11, type: !59, isLocal: false, isDefinition: false, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false)
!62 = !DILocalVariable(name: "this", arg: 1, scope: !58, type: !63, flags: DIFlagArtificial | DIFlagObjectPointer)
!63 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !11, size: 64, align: 64)
!64 = !DILocation(line: 0, scope: !58)
!65 = !DILocation(line: 1, column: 8, scope: !58)
!66 = distinct !DISubprogram(name: "B", linkageName: "\01??0B@@QEAA@XZ", scope: !26, file: !1, line: 4, type: !67, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !69, retainedNodes: !2)
!67 = !DISubroutineType(types: !68)
!68 = !{null, !32}
!69 = !DISubprogram(name: "B", scope: !26, type: !67, isLocal: false, isDefinition: false, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false)
!70 = !DILocalVariable(name: "this", arg: 1, scope: !66, type: !71, flags: DIFlagArtificial | DIFlagObjectPointer)
!71 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !26, size: 64, align: 64)
!72 = !DILocation(line: 0, scope: !66)
!73 = !DILocation(line: 4, column: 8, scope: !66)
!74 = distinct !DISubprogram(name: "C", linkageName: "\01??0C@@QEAA@XZ", scope: !35, file: !1, line: 7, type: !75, isLocal: false, isDefinition: true, scopeLine: 7, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !77, retainedNodes: !2)
!75 = !DISubroutineType(types: !76)
!76 = !{null, !43}
!77 = !DISubprogram(name: "C", scope: !35, type: !75, isLocal: false, isDefinition: false, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false)
!78 = !DILocalVariable(name: "this", arg: 1, scope: !74, type: !79, flags: DIFlagArtificial | DIFlagObjectPointer)
!79 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !35, size: 64, align: 64)
!80 = !DILocation(line: 0, scope: !74)
!81 = !DILocation(line: 7, column: 8, scope: !74)
!82 = !DILocation(line: 8, column: 7, scope: !74)
!83 = distinct !DISubprogram(name: "D", linkageName: "\01??0D@@QEAA@XZ", scope: !46, file: !1, line: 11, type: !84, isLocal: false, isDefinition: true, scopeLine: 11, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !86, retainedNodes: !2)
!84 = !DISubroutineType(types: !85)
!85 = !{null, !54}
!86 = !DISubprogram(name: "D", scope: !46, type: !84, isLocal: false, isDefinition: false, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false)
!87 = !DILocalVariable(name: "is_most_derived", arg: 2, scope: !83, type: !18, flags: DIFlagArtificial)
!88 = !DILocation(line: 0, scope: !83)
!89 = !DILocalVariable(name: "this", arg: 1, scope: !83, type: !90, flags: DIFlagArtificial | DIFlagObjectPointer)
!90 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !46, size: 64, align: 64)
!91 = !DILocation(line: 11, column: 8, scope: !83)
!92 = !DILocation(line: 12, column: 7, scope: !83)
!93 = distinct !DISubprogram(name: "g", linkageName: "\01?g@C@@UEAAHXZ", scope: !35, file: !1, line: 9, type: !41, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !40, retainedNodes: !2)
!94 = !DILocalVariable(name: "this", arg: 1, scope: !93, type: !79, flags: DIFlagArtificial | DIFlagObjectPointer)
!95 = !DILocation(line: 0, scope: !93)
!96 = !DILocation(line: 9, column: 28, scope: !93)
!97 = !DILocation(line: 9, column: 21, scope: !93)
!98 = distinct !DISubprogram(name: "g", linkageName: "\01?g@D@@UEAAHXZ", scope: !46, file: !1, line: 13, type: !52, isLocal: false, isDefinition: true, scopeLine: 13, flags: DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !51, retainedNodes: !2)
!99 = !DILocalVariable(name: "this", arg: 1, scope: !98, type: !90, flags: DIFlagArtificial | DIFlagObjectPointer)
!100 = !DILocation(line: 0, scope: !98)
!101 = !DILocation(line: 13, column: 28, scope: !98)
!102 = !DILocation(line: 13, column: 21, scope: !98)
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