[codeview] Emit vtable shape information

The shape of the vtable is passed down as the size of the
__vtbl_ptr_type. This special pointer type appears both as the pointee
type of the vptr type, and by itself in every dynamic class. For classes
with multiple vtables, only the shape of the primary vftable is
included, as the shape of all secondary vftables will be the same as in
the base class.

Fixes PR28150

llvm-svn: 280254

2 files changed, 548 insertions, 42 deletions

diff --git a/llvm/test/DebugInfo/COFF/types-data-members.ll b/llvm/test/DebugInfo/COFF/types-data-members.ll
index 759a5e54644..9276b962ac8 100644
--- a/llvm/test/DebugInfo/COFF/types-data-members.ll
+++ b/llvm/test/DebugInfo/COFF/types-data-members.ll
@@ -256,18 +256,13 @@
 ; CHECK:     IsUnaligned: 0
 ; CHECK:     SizeOf: 8
 ; CHECK:   }
-; CHECK:   Procedure (0x1013) {
-; CHECK:     TypeLeafKind: LF_PROCEDURE (0x1008)
-; CHECK:     ReturnType: int (0x74)
-; CHECK:     CallingConvention: NearC (0x0)
-; CHECK:     FunctionOptions [ (0x0)
-; CHECK:     ]
-; CHECK:     NumParameters: 0
-; CHECK:     ArgListType: () (0x1000)
+; CHECK:   VFTableShape (0x1013) {
+; CHECK:     TypeLeafKind: LF_VTSHAPE (0xA)
+; CHECK:     VFEntryCount: 1
 ; CHECK:   }
 ; CHECK:   Pointer (0x1014) {
 ; CHECK:     TypeLeafKind: LF_POINTER (0x1002)
-; CHECK:     PointeeType: int () (0x1013)
+; CHECK:     PointeeType: <vftable 1 methods> (0x1013)
 ; CHECK:     PointerAttributes: 0x1000C
 ; CHECK:     PtrType: Near64 (0xC)
 ; CHECK:     PtrMode: Pointer (0x0)
@@ -277,19 +272,7 @@
 ; CHECK:     IsUnaligned: 0
 ; CHECK:     SizeOf: 8
 ; CHECK:   }
-; CHECK:   Pointer (0x1015) {
-; CHECK:     TypeLeafKind: LF_POINTER (0x1002)
-; CHECK:     PointeeType: int ()* (0x1014)
-; CHECK:     PointerAttributes: 0x1000C
-; CHECK:     PtrType: Near64 (0xC)
-; CHECK:     PtrMode: Pointer (0x0)
-; CHECK:     IsFlat: 0
-; CHECK:     IsConst: 0
-; CHECK:     IsVolatile: 0
-; CHECK:     IsUnaligned: 0
-; CHECK:     SizeOf: 8
-; CHECK:   }
-; CHECK:   FieldList (0x1016) {
+; CHECK:   FieldList (0x1015) {
 ; CHECK:     TypeLeafKind: LF_FIELDLIST (0x1203)
 ; CHECK:     BaseClass {
 ; CHECK:       AccessSpecifier: Public (0x3)
@@ -303,11 +286,8 @@
 ; CHECK:       VBPtrOffset: 0x0
 ; CHECK:       VBTableIndex: 0x1
 ; CHECK:     }
-; CHECK:     DataMember {
-; CHECK:       AccessSpecifier: Public (0x3)
-; CHECK:       Type: int ()** (0x1015)
-; CHECK:       FieldOffset: 0x0
-; CHECK:       Name: _vptr$DerivedClass
+; CHECK:     VFPtr {
+; CHECK:       Type: <vftable 1 methods>* (0x1014)
 ; CHECK:     }
 ; CHECK:     DataMember {
 ; CHECK:       AccessSpecifier: Public (0x3)
@@ -316,26 +296,26 @@
 ; CHECK:       Name: d
 ; CHECK:     }
 ; CHECK:   }
-; CHECK:   Struct (0x1017) {
+; CHECK:   Struct (0x1016) {
 ; CHECK:     TypeLeafKind: LF_STRUCTURE (0x1505)
 ; CHECK:     MemberCount: 2
 ; CHECK:     Properties [ (0x200)
 ; CHECK:       HasUniqueName (0x200)
 ; CHECK:     ]
-; CHECK:     FieldList: <field list> (0x1016)
+; CHECK:     FieldList: <field list> (0x1015)
 ; CHECK:     DerivedFrom: 0x0
 ; CHECK:     VShape: 0x0
 ; CHECK:     SizeOf: 48
 ; CHECK:     Name: DerivedClass
 ; CHECK:     LinkageName: .?AUDerivedClass@@
 ; CHECK:   }
-; CHECK:   UdtSourceLine (0x1018) {
+; CHECK:   UdtSourceLine (0x1017) {
 ; CHECK:     TypeLeafKind: LF_UDT_SRC_LINE (0x1606)
-; CHECK:     UDT: DerivedClass (0x1017)
+; CHECK:     UDT: DerivedClass (0x1016)
 ; CHECK:     SourceFile: D:\src\llvm\build\t.cpp (0x1007)
 ; CHECK:     LineNumber: 20
 ; CHECK:   }
-; CHECK:   Struct (0x1019) {
+; CHECK:   Struct (0x1018) {
 ; CHECK:     TypeLeafKind: LF_STRUCTURE (0x1505)
 ; CHECK:     MemberCount: 0
 ; CHECK:     Properties [ (0x288)
@@ -350,7 +330,7 @@
 ; CHECK:     Name: Class::Nested
 ; CHECK:     LinkageName: .?AUNested@Class@@
 ; CHECK:   }
-; CHECK:   FieldList (0x101A) {
+; CHECK:   FieldList (0x1019) {
 ; CHECK:     TypeLeafKind: LF_FIELDLIST (0x1203)
 ; CHECK:     DataMember {
 ; CHECK:       AccessSpecifier: Public (0x3)
@@ -359,27 +339,27 @@
 ; CHECK:       Name: n
 ; CHECK:     }
 ; CHECK:   }
-; CHECK:   Struct (0x101B) {
+; CHECK:   Struct (0x101A) {
 ; CHECK:     TypeLeafKind: LF_STRUCTURE (0x1505)
 ; CHECK:     MemberCount: 1
 ; CHECK:     Properties [ (0x208)
 ; CHECK:       HasUniqueName (0x200)
 ; CHECK:       Nested (0x8)
 ; CHECK:     ]
-; CHECK:     FieldList: <field list> (0x101A)
+; CHECK:     FieldList: <field list> (0x1019)
 ; CHECK:     DerivedFrom: 0x0
 ; CHECK:     VShape: 0x0
 ; CHECK:     SizeOf: 4
 ; CHECK:     Name: Class::Nested
 ; CHECK:     LinkageName: .?AUNested@Class@@
 ; CHECK:   }
-; CHECK:   UdtSourceLine (0x101C) {
+; CHECK:   UdtSourceLine (0x101B) {
 ; CHECK:     TypeLeafKind: LF_UDT_SRC_LINE (0x1606)
-; CHECK:     UDT: Class::Nested (0x101B)
+; CHECK:     UDT: Class::Nested (0x101A)
 ; CHECK:     SourceFile: D:\src\llvm\build\t.cpp (0x1007)
 ; CHECK:     LineNumber: 23
 ; CHECK:   }
-; CHECK:   Pointer (0x101D) {
+; CHECK:   Pointer (0x101C) {
 ; CHECK:     TypeLeafKind: LF_POINTER (0x1002)
 ; CHECK:     PointeeType: DerivedClass (0x1011)
 ; CHECK:     PointerAttributes: 0x1000C
@@ -391,11 +371,11 @@
 ; CHECK:     IsUnaligned: 0
 ; CHECK:     SizeOf: 8
 ; CHECK:   }
-; CHECK:   MemberFunction (0x101E) {
+; CHECK:   MemberFunction (0x101D) {
 ; CHECK:     TypeLeafKind: LF_MFUNCTION (0x1009)
 ; CHECK:     ReturnType: void (0x3)
 ; CHECK:     ClassType: DerivedClass (0x1011)
-; CHECK:     ThisType: DerivedClass* (0x101D)
+; CHECK:     ThisType: DerivedClass* (0x101C)
 ; CHECK:     CallingConvention: NearC (0x0)
 ; CHECK:     FunctionOptions [ (0x0)
 ; CHECK:     ]
@@ -403,10 +383,10 @@
 ; CHECK:     ArgListType: () (0x1000)
 ; CHECK:     ThisAdjustment: 0
 ; CHECK:   }
-; CHECK:   MemberFuncId (0x101F) {
+; CHECK:   MemberFuncId (0x101E) {
 ; CHECK:     TypeLeafKind: LF_MFUNC_ID (0x1602)
 ; CHECK:     ClassType: DerivedClass (0x1011)
-; CHECK:     FunctionType: void DerivedClass::() (0x101E)
+; CHECK:     FunctionType: void DerivedClass::() (0x101D)
 ; CHECK:     Name: DerivedClass::DerivedClass
 ; CHECK:   }
 ; CHECK: ]
diff --git a/llvm/test/DebugInfo/COFF/vftables.ll b/llvm/test/DebugInfo/COFF/vftables.ll
new file mode 100644
index 00000000000..ebb64738143
--- /dev/null
+++ b/llvm/test/DebugInfo/COFF/vftables.ll
@@ -0,0 +1,526 @@
+; RUN: llc < %s -filetype=obj | llvm-readobj - -codeview | FileCheck %s
+
+; C++ source to regenerate:
+; struct A {
+;   virtual void f();
+;   virtual void g();
+;   int a = 0;
+; };
+; struct B {
+;   virtual void g();
+;   virtual void f();
+;   int b = 0;
+; };
+; struct C : A, B {
+;   virtual void g();
+;   virtual void f();
+;   int c = 0;
+; };
+; struct D : C {
+;   virtual void g();
+;   virtual void f();
+;   int d = 0;
+; };
+; void h() { D d; }
+
+; CHECK:       VFTableShape ([[vshape_1:0x[A-Z0-9]+]]) {
+; CHECK-NEXT:    TypeLeafKind: LF_VTSHAPE (0xA)
+; CHECK-NEXT:    VFEntryCount: 1
+; CHECK-NEXT:  }
+
+; CHECK:       Pointer ([[vptr_1:0x[A-Z0-9]+]]) {
+; CHECK-NEXT:    TypeLeafKind: LF_POINTER (0x1002)
+; CHECK-NEXT:    PointeeType: <vftable 1 methods> ([[vshape_1]])
+
+; CHECK:       FieldList ([[a_members:0x[A-Z0-9]+]]) {
+; CHECK-NEXT:    TypeLeafKind: LF_FIELDLIST (0x1203)
+; CHECK-NEXT:    VFPtr {
+; CHECK-NEXT:      TypeLeafKind: LF_VFUNCTAB (0x1409)
+; CHECK-NEXT:      Type: <vftable 1 methods>* ([[vptr_1]])
+; CHECK-NEXT:    }
+; CHECK-NEXT:    DataMember {
+; CHECK-NEXT:      TypeLeafKind: LF_MEMBER (0x150D)
+; CHECK-NEXT:      AccessSpecifier: Public (0x3)
+; CHECK-NEXT:      Type: int (0x74)
+; CHECK-NEXT:      FieldOffset: 0x8
+; CHECK-NEXT:      Name: a
+; CHECK-NEXT:    }
+; CHECK-NEXT:    OneMethod {
+; CHECK-NEXT:      TypeLeafKind: LF_ONEMETHOD (0x1511)
+; CHECK-NEXT:      AccessSpecifier: Public (0x3)
+; CHECK-NEXT:      MethodKind: IntroducingVirtual (0x4)
+; CHECK-NEXT:      Type: void A::()
+; CHECK-NEXT:      VFTableOffset: 0x0
+; CHECK-NEXT:      Name: g
+; CHECK-NEXT:    }
+; CHECK-NEXT:  }
+
+; CHECK:        Struct ({{.*}}) {
+; CHECK-NEXT:     TypeLeafKind: LF_STRUCTURE (0x1505)
+; CHECK-NEXT:     MemberCount: 3
+; CHECK-NEXT:     Properties [ (0x200)
+; CHECK-NEXT:       HasUniqueName (0x200)
+; CHECK-NEXT:     ]
+; CHECK-NEXT:     FieldList: <field list> ([[a_members]])
+; CHECK-NEXT:     DerivedFrom: 0x0
+; CHECK-NEXT:     VShape: <vftable 1 methods> ([[vshape_1]])
+; CHECK-NEXT:     SizeOf: 16
+; CHECK-NEXT:     Name: A
+; CHECK-NEXT:     LinkageName: .?AUA@@
+; CHECK-NEXT:   }
+
+; CHECK:       VFTableShape ([[vshape_2:0x[A-Z0-9]+]]) {
+; CHECK-NEXT:    TypeLeafKind: LF_VTSHAPE (0xA)
+; CHECK-NEXT:    VFEntryCount: 2
+; CHECK-NEXT:  }
+
+; CHECK:       Pointer ([[vptr_2:0x[A-Z0-9]+]]) {
+; CHECK-NEXT:    TypeLeafKind: LF_POINTER (0x1002)
+; CHECK-NEXT:    PointeeType: <vftable 2 methods> ([[vshape_2]])
+
+; CHECK:       FieldList ([[b_members:0x[A-Z0-9]+]]) {
+; CHECK-NEXT:    TypeLeafKind: LF_FIELDLIST (0x1203)
+; CHECK-NEXT:    VFPtr {
+; CHECK-NEXT:      TypeLeafKind: LF_VFUNCTAB (0x1409)
+; CHECK-NEXT:      Type: <vftable 2 methods>* ([[vptr_2]])
+; CHECK-NEXT:    }
+
+; CHECK:        Struct ({{.*}}) {
+; CHECK-NEXT:     TypeLeafKind: LF_STRUCTURE (0x1505)
+; CHECK-NEXT:     MemberCount: 4
+; CHECK-NEXT:     Properties [ (0x200)
+; CHECK-NEXT:       HasUniqueName (0x200)
+; CHECK-NEXT:     ]
+; CHECK-NEXT:     FieldList: <field list> ([[b_members]])
+; CHECK-NEXT:     DerivedFrom: 0x0
+; CHECK-NEXT:     VShape: <vftable 2 methods> ([[vshape_2]])
+; CHECK-NEXT:     SizeOf: 16
+; CHECK-NEXT:     Name: B
+; CHECK-NEXT:     LinkageName: .?AUB@@
+; CHECK-NEXT:   }
+
+; C has a primary base, so it does not need a VFPtr member.
+
+; CHECK:       FieldList ([[c_members:0x[A-Z0-9]+]]) {
+; CHECK-NEXT:    TypeLeafKind: LF_FIELDLIST (0x1203)
+; CHECK-NEXT:    BaseClass {
+; CHECK-NEXT:      TypeLeafKind: LF_BCLASS (0x1400)
+; CHECK-NEXT:      AccessSpecifier: Public (0x3)
+; CHECK-NEXT:      BaseType: A
+; CHECK-NEXT:      BaseOffset: 0x0
+; CHECK-NEXT:    }
+; CHECK-NEXT:    BaseClass {
+; CHECK-NEXT:      TypeLeafKind: LF_BCLASS (0x1400)
+; CHECK-NEXT:      AccessSpecifier: Public (0x3)
+; CHECK-NEXT:      BaseType: B
+; CHECK-NEXT:      BaseOffset: 0x10
+; CHECK-NEXT:    }
+; CHECK-NOT:     VFPtr
+
+; FIXME: Is the MemberCount correct?
+
+; CHECK:        Struct ({{.*}}) {
+; CHECK-NEXT:     TypeLeafKind: LF_STRUCTURE (0x1505)
+; CHECK-NEXT:     MemberCount: 3
+; CHECK-NEXT:     Properties [ (0x200)
+; CHECK-NEXT:       HasUniqueName (0x200)
+; CHECK-NEXT:     ]
+; CHECK-NEXT:     FieldList: <field list> ([[c_members]])
+; CHECK-NEXT:     DerivedFrom: 0x0
+; CHECK-NEXT:     VShape: <vftable 1 methods> ([[vshape_1]])
+; CHECK-NEXT:     SizeOf: 40
+; CHECK-NEXT:     Name: C
+; CHECK-NEXT:     LinkageName: .?AUC@@
+; CHECK-NEXT:   }
+
+; CHECK:       FieldList ([[d_members:0x[A-Z0-9]+]]) {
+; CHECK-NEXT:    TypeLeafKind: LF_FIELDLIST (0x1203)
+; CHECK-NEXT:    BaseClass {
+; CHECK-NEXT:      TypeLeafKind: LF_BCLASS (0x1400)
+; CHECK-NEXT:      AccessSpecifier: Public (0x3)
+; CHECK-NEXT:      BaseType: C
+; CHECK-NEXT:      BaseOffset: 0x0
+; CHECK-NEXT:    }
+; CHECK-NOT:     VFPtr
+
+; CHECK:        Struct ({{.*}}) {
+; CHECK-NEXT:     TypeLeafKind: LF_STRUCTURE (0x1505)
+; CHECK-NEXT:     MemberCount: 3
+; CHECK-NEXT:     Properties [ (0x200)
+; CHECK-NEXT:       HasUniqueName (0x200)
+; CHECK-NEXT:     ]
+; CHECK-NEXT:     FieldList: <field list> ([[d_members]])
+; CHECK-NEXT:     DerivedFrom: 0x0
+; CHECK-NEXT:     VShape: <vftable 1 methods> ([[vshape_1]])
+; CHECK-NEXT:     SizeOf: 48
+; CHECK-NEXT:     Name: D
+; CHECK-NEXT:     LinkageName: .?AUD@@
+; 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-msvc19.0.24210"
+
+%rtti.CompleteObjectLocator = type { i32, i32, i32, i32, i32, i32 }
+%rtti.TypeDescriptor7 = type { i8**, i8*, [8 x i8] }
+%rtti.ClassHierarchyDescriptor = type { i32, i32, i32, i32 }
+%rtti.BaseClassDescriptor = type { i32, i32, i32, i32, i32, i32, i32 }
+%struct.A = type { i32 (...)**, i32 }
+%struct.B = type { i32 (...)**, i32 }
+%struct.C = type { %struct.A, %struct.B, i32 }
+%struct.D = type { %struct.C, i32 }
+
+$"\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@@WBA@EAAXXZ" = comdat any
+
+$"\01?g@D@@WBA@EAAXXZ" = comdat any
+
+$"\01??_7A@@6B@" = comdat largest
+
+$"\01??_R4A@@6B@" = comdat any
+
+$"\01??_R0?AUA@@@8" = comdat any
+
+$"\01??_R3A@@8" = comdat any
+
+$"\01??_R2A@@8" = comdat any
+
+$"\01??_R1A@?0A@EA@A@@8" = comdat any
+
+$"\01??_7B@@6B@" = comdat largest
+
+$"\01??_R4B@@6B@" = comdat any
+
+$"\01??_R0?AUB@@@8" = comdat any
+
+$"\01??_R3B@@8" = comdat any
+
+$"\01??_R2B@@8" = comdat any
+
+$"\01??_R1A@?0A@EA@B@@8" = comdat any
+
+$"\01??_7C@@6BA@@@" = comdat largest
+
+$"\01??_7C@@6BB@@@" = comdat largest
+
+$"\01??_R4C@@6BA@@@" = comdat any
+
+$"\01??_R0?AUC@@@8" = comdat any
+
+$"\01??_R3C@@8" = comdat any
+
+$"\01??_R2C@@8" = comdat any
+
+$"\01??_R1A@?0A@EA@C@@8" = comdat any
+
+$"\01??_R1BA@?0A@EA@B@@8" = comdat any
+
+$"\01??_R4C@@6BB@@@" = comdat any
+
+$"\01??_7D@@6BA@@@" = comdat largest
+
+$"\01??_7D@@6BB@@@" = comdat largest
+
+$"\01??_R4D@@6BA@@@" = comdat any
+
+$"\01??_R0?AUD@@@8" = comdat any
+
+$"\01??_R3D@@8" = comdat any
+
+$"\01??_R2D@@8" = comdat any
+
+$"\01??_R1A@?0A@EA@D@@8" = comdat any
+
+$"\01??_R4D@@6BB@@@" = comdat any
+
+@0 = private unnamed_addr constant [2 x i8*] [i8* bitcast (%rtti.CompleteObjectLocator* @"\01??_R4A@@6B@" to i8*), i8* bitcast (void (%struct.A*)* @"\01?g@A@@UEAAXXZ" to i8*)], comdat($"\01??_7A@@6B@")
+@"\01??_R4A@@6B@" = linkonce_odr constant %rtti.CompleteObjectLocator { i32 1, i32 0, i32 0, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor7* @"\01??_R0?AUA@@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.ClassHierarchyDescriptor* @"\01??_R3A@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.CompleteObjectLocator* @"\01??_R4A@@6B@" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat
+@"\01??_7type_info@@6B@" = external constant i8*
+@"\01??_R0?AUA@@@8" = linkonce_odr global %rtti.TypeDescriptor7 { i8** @"\01??_7type_info@@6B@", i8* null, [8 x i8] c".?AUA@@\00" }, comdat
+@__ImageBase = external constant i8
+@"\01??_R3A@@8" = linkonce_odr constant %rtti.ClassHierarchyDescriptor { i32 0, i32 0, i32 1, i32 trunc (i64 sub nuw nsw (i64 ptrtoint ([2 x i32]* @"\01??_R2A@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat
+@"\01??_R2A@@8" = linkonce_odr constant [2 x i32] [i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.BaseClassDescriptor* @"\01??_R1A@?0A@EA@A@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 0], comdat
+@"\01??_R1A@?0A@EA@A@@8" = linkonce_odr constant %rtti.BaseClassDescriptor { i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor7* @"\01??_R0?AUA@@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 0, i32 0, i32 -1, i32 0, i32 64, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.ClassHierarchyDescriptor* @"\01??_R3A@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat
+@1 = private unnamed_addr constant [3 x i8*] [i8* bitcast (%rtti.CompleteObjectLocator* @"\01??_R4B@@6B@" to i8*), i8* bitcast (void (%struct.B*)* @"\01?g@B@@UEAAXXZ" to i8*), i8* bitcast (void (%struct.B*)* @"\01?f@B@@UEAAXXZ" to i8*)], comdat($"\01??_7B@@6B@")
+@"\01??_R4B@@6B@" = linkonce_odr constant %rtti.CompleteObjectLocator { i32 1, i32 0, i32 0, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor7* @"\01??_R0?AUB@@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.ClassHierarchyDescriptor* @"\01??_R3B@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.CompleteObjectLocator* @"\01??_R4B@@6B@" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat
+@"\01??_R0?AUB@@@8" = linkonce_odr global %rtti.TypeDescriptor7 { i8** @"\01??_7type_info@@6B@", i8* null, [8 x i8] c".?AUB@@\00" }, comdat
+@"\01??_R3B@@8" = linkonce_odr constant %rtti.ClassHierarchyDescriptor { i32 0, i32 0, i32 1, i32 trunc (i64 sub nuw nsw (i64 ptrtoint ([2 x i32]* @"\01??_R2B@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat
+@"\01??_R2B@@8" = linkonce_odr constant [2 x i32] [i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.BaseClassDescriptor* @"\01??_R1A@?0A@EA@B@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 0], comdat
+@"\01??_R1A@?0A@EA@B@@8" = linkonce_odr constant %rtti.BaseClassDescriptor { i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor7* @"\01??_R0?AUB@@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 0, i32 0, i32 -1, i32 0, i32 64, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.ClassHierarchyDescriptor* @"\01??_R3B@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat
+@2 = private unnamed_addr constant [2 x i8*] [i8* bitcast (%rtti.CompleteObjectLocator* @"\01??_R4C@@6BA@@@" to i8*), i8* bitcast (void (%struct.C*)* @"\01?g@C@@UEAAXXZ" to i8*)], comdat($"\01??_7C@@6BA@@@")
+@3 = private unnamed_addr constant [3 x i8*] [i8* bitcast (%rtti.CompleteObjectLocator* @"\01??_R4C@@6BB@@@" to i8*), i8* bitcast (void (%struct.C*)* @"\01?g@C@@WBA@EAAXXZ" to i8*), i8* bitcast (void (i8*)* @"\01?f@C@@UEAAXXZ" to i8*)], comdat($"\01??_7C@@6BB@@@")
+@"\01??_R4C@@6BA@@@" = linkonce_odr constant %rtti.CompleteObjectLocator { i32 1, i32 0, i32 0, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor7* @"\01??_R0?AUC@@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.ClassHierarchyDescriptor* @"\01??_R3C@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.CompleteObjectLocator* @"\01??_R4C@@6BA@@@" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat
+@"\01??_R0?AUC@@@8" = linkonce_odr global %rtti.TypeDescriptor7 { i8** @"\01??_7type_info@@6B@", i8* null, [8 x i8] c".?AUC@@\00" }, comdat
+@"\01??_R3C@@8" = linkonce_odr constant %rtti.ClassHierarchyDescriptor { i32 0, i32 1, i32 3, i32 trunc (i64 sub nuw nsw (i64 ptrtoint ([4 x i32]* @"\01??_R2C@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat
+@"\01??_R2C@@8" = linkonce_odr constant [4 x i32] [i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.BaseClassDescriptor* @"\01??_R1A@?0A@EA@C@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.BaseClassDescriptor* @"\01??_R1A@?0A@EA@A@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.BaseClassDescriptor* @"\01??_R1BA@?0A@EA@B@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 0], comdat
+@"\01??_R1A@?0A@EA@C@@8" = linkonce_odr constant %rtti.BaseClassDescriptor { i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor7* @"\01??_R0?AUC@@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 2, i32 0, i32 -1, i32 0, i32 64, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.ClassHierarchyDescriptor* @"\01??_R3C@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat
+@"\01??_R1BA@?0A@EA@B@@8" = linkonce_odr constant %rtti.BaseClassDescriptor { i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor7* @"\01??_R0?AUB@@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 0, i32 16, i32 -1, i32 0, i32 64, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.ClassHierarchyDescriptor* @"\01??_R3B@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat
+@"\01??_R4C@@6BB@@@" = linkonce_odr constant %rtti.CompleteObjectLocator { i32 1, i32 16, i32 0, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor7* @"\01??_R0?AUC@@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.ClassHierarchyDescriptor* @"\01??_R3C@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.CompleteObjectLocator* @"\01??_R4C@@6BB@@@" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat
+@4 = private unnamed_addr constant [2 x i8*] [i8* bitcast (%rtti.CompleteObjectLocator* @"\01??_R4D@@6BA@@@" to i8*), i8* bitcast (void (%struct.D*)* @"\01?g@D@@UEAAXXZ" to i8*)], comdat($"\01??_7D@@6BA@@@")
+@5 = private unnamed_addr constant [3 x i8*] [i8* bitcast (%rtti.CompleteObjectLocator* @"\01??_R4D@@6BB@@@" to i8*), i8* bitcast (void (%struct.D*)* @"\01?g@D@@WBA@EAAXXZ" to i8*), i8* bitcast (void (i8*)* @"\01?f@D@@UEAAXXZ" to i8*)], comdat($"\01??_7D@@6BB@@@")
+@"\01??_R4D@@6BA@@@" = linkonce_odr constant %rtti.CompleteObjectLocator { i32 1, i32 0, i32 0, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor7* @"\01??_R0?AUD@@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.ClassHierarchyDescriptor* @"\01??_R3D@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.CompleteObjectLocator* @"\01??_R4D@@6BA@@@" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat
+@"\01??_R0?AUD@@@8" = linkonce_odr global %rtti.TypeDescriptor7 { i8** @"\01??_7type_info@@6B@", i8* null, [8 x i8] c".?AUD@@\00" }, comdat
+@"\01??_R3D@@8" = linkonce_odr constant %rtti.ClassHierarchyDescriptor { i32 0, i32 1, i32 4, i32 trunc (i64 sub nuw nsw (i64 ptrtoint ([5 x i32]* @"\01??_R2D@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat
+@"\01??_R2D@@8" = linkonce_odr constant [5 x i32] [i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.BaseClassDescriptor* @"\01??_R1A@?0A@EA@D@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.BaseClassDescriptor* @"\01??_R1A@?0A@EA@C@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.BaseClassDescriptor* @"\01??_R1A@?0A@EA@A@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.BaseClassDescriptor* @"\01??_R1BA@?0A@EA@B@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 0], comdat
+@"\01??_R1A@?0A@EA@D@@8" = linkonce_odr constant %rtti.BaseClassDescriptor { i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor7* @"\01??_R0?AUD@@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 3, i32 0, i32 -1, i32 0, i32 64, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.ClassHierarchyDescriptor* @"\01??_R3D@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat
+@"\01??_R4D@@6BB@@@" = linkonce_odr constant %rtti.CompleteObjectLocator { i32 1, i32 16, i32 0, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor7* @"\01??_R0?AUD@@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.ClassHierarchyDescriptor* @"\01??_R3D@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.CompleteObjectLocator* @"\01??_R4D@@6BB@@@" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat
+
+@"\01??_7A@@6B@" = unnamed_addr alias i8*, getelementptr inbounds ([2 x i8*], [2 x i8*]* @0, i32 0, i32 1)
+@"\01??_7B@@6B@" = unnamed_addr alias i8*, getelementptr inbounds ([3 x i8*], [3 x i8*]* @1, i32 0, i32 1)
+@"\01??_7C@@6BA@@@" = unnamed_addr alias i8*, getelementptr inbounds ([2 x i8*], [2 x i8*]* @2, i32 0, i32 1)
+@"\01??_7C@@6BB@@@" = unnamed_addr alias i8*, getelementptr inbounds ([3 x i8*], [3 x i8*]* @3, i32 0, i32 1)
+@"\01??_7D@@6BA@@@" = unnamed_addr alias i8*, getelementptr inbounds ([2 x i8*], [2 x i8*]* @4, i32 0, i32 1)
+@"\01??_7D@@6BB@@@" = unnamed_addr alias i8*, getelementptr inbounds ([3 x i8*], [3 x i8*]* @5, i32 0, i32 1)
+
+; Function Attrs: nounwind uwtable
+define void @"\01?h@@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 !22), !dbg !23
+  %call = call %struct.A* @"\01??0A@@QEAA@XZ"(%struct.A* %a) #5, !dbg !23
+  call void @llvm.dbg.declare(metadata %struct.B* %b, metadata !24, metadata !22), !dbg !36
+  %call1 = call %struct.B* @"\01??0B@@QEAA@XZ"(%struct.B* %b) #5, !dbg !36
+  call void @llvm.dbg.declare(metadata %struct.C* %c, metadata !37, metadata !22), !dbg !48
+  %call2 = call %struct.C* @"\01??0C@@QEAA@XZ"(%struct.C* %c) #5, !dbg !48
+  call void @llvm.dbg.declare(metadata %struct.D* %d, metadata !49, metadata !22), !dbg !59
+  %call3 = call %struct.D* @"\01??0D@@QEAA@XZ"(%struct.D* %d) #5, !dbg !59
+  ret void, !dbg !60
+}
+
+; 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 !61 {
+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 !63, metadata !22), !dbg !65
+  %this1 = load %struct.A*, %struct.A** %this.addr, align 8
+  %0 = bitcast %struct.A* %this1 to i32 (...)***, !dbg !66
+  store i32 (...)** bitcast (i8** @"\01??_7A@@6B@" to i32 (...)**), i32 (...)*** %0, align 8, !dbg !66
+  %a = getelementptr inbounds %struct.A, %struct.A* %this1, i32 0, i32 1, !dbg !67
+  store i32 0, i32* %a, align 8, !dbg !67
+  ret %struct.A* %this1, !dbg !66
+}
+
+; 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 !68 {
+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 !22), !dbg !72
+  %this1 = load %struct.B*, %struct.B** %this.addr, align 8
+  %0 = bitcast %struct.B* %this1 to i32 (...)***, !dbg !73
+  store i32 (...)** bitcast (i8** @"\01??_7B@@6B@" to i32 (...)**), i32 (...)*** %0, align 8, !dbg !73
+  %b = getelementptr inbounds %struct.B, %struct.B* %this1, i32 0, i32 1, !dbg !74
+  store i32 0, i32* %b, align 8, !dbg !74
+  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 !75 {
+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 !77, metadata !22), !dbg !79
+  %this1 = load %struct.C*, %struct.C** %this.addr, align 8
+  %0 = bitcast %struct.C* %this1 to %struct.A*, !dbg !80
+  %call = call %struct.A* @"\01??0A@@QEAA@XZ"(%struct.A* %0) #5, !dbg !80
+  %1 = bitcast %struct.C* %this1 to i8*, !dbg !80
+  %2 = getelementptr inbounds i8, i8* %1, i64 16, !dbg !80
+  %3 = bitcast i8* %2 to %struct.B*, !dbg !80
+  %call2 = call %struct.B* @"\01??0B@@QEAA@XZ"(%struct.B* %3) #5, !dbg !80
+  %4 = bitcast %struct.C* %this1 to i32 (...)***, !dbg !80
+  store i32 (...)** bitcast (i8** @"\01??_7C@@6BA@@@" to i32 (...)**), i32 (...)*** %4, align 8, !dbg !80
+  %5 = bitcast %struct.C* %this1 to i8*, !dbg !80
+  %add.ptr = getelementptr inbounds i8, i8* %5, i64 16, !dbg !80
+  %6 = bitcast i8* %add.ptr to i32 (...)***, !dbg !80
+  store i32 (...)** bitcast (i8** @"\01??_7C@@6BB@@@" to i32 (...)**), i32 (...)*** %6, align 8, !dbg !80
+  %c = getelementptr inbounds %struct.C, %struct.C* %this1, i32 0, i32 2, !dbg !81
+  store i32 0, i32* %c, align 8, !dbg !81
+  ret %struct.C* %this1, !dbg !80
+}
+
+; Function Attrs: inlinehint nounwind uwtable
+define linkonce_odr %struct.D* @"\01??0D@@QEAA@XZ"(%struct.D* returned %this) unnamed_addr #2 comdat align 2 !dbg !82 {
+entry:
+  %this.addr = alloca %struct.D*, align 8
+  store %struct.D* %this, %struct.D** %this.addr, align 8
+  call void @llvm.dbg.declare(metadata %struct.D** %this.addr, metadata !84, metadata !22), !dbg !86
+  %this1 = load %struct.D*, %struct.D** %this.addr, align 8
+  %0 = bitcast %struct.D* %this1 to %struct.C*, !dbg !87
+  %call = call %struct.C* @"\01??0C@@QEAA@XZ"(%struct.C* %0) #5, !dbg !87
+  %1 = bitcast %struct.D* %this1 to i32 (...)***, !dbg !87
+  store i32 (...)** bitcast (i8** @"\01??_7D@@6BA@@@" to i32 (...)**), i32 (...)*** %1, align 8, !dbg !87
+  %2 = bitcast %struct.D* %this1 to i8*, !dbg !87
+  %add.ptr = getelementptr inbounds i8, i8* %2, i64 16, !dbg !87
+  %3 = bitcast i8* %add.ptr to i32 (...)***, !dbg !87
+  store i32 (...)** bitcast (i8** @"\01??_7D@@6BB@@@" to i32 (...)**), i32 (...)*** %3, align 8, !dbg !87
+  %d = getelementptr inbounds %struct.D, %struct.D* %this1, i32 0, i32 1, !dbg !88
+  store i32 0, i32* %d, align 8, !dbg !88
+  ret %struct.D* %this1, !dbg !87
+}
+
+declare void @"\01?g@A@@UEAAXXZ"(%struct.A*) unnamed_addr #3
+
+declare void @"\01?g@B@@UEAAXXZ"(%struct.B*) unnamed_addr #3
+
+declare void @"\01?f@B@@UEAAXXZ"(%struct.B*) unnamed_addr #3
+
+declare void @"\01?g@C@@UEAAXXZ"(%struct.C*) unnamed_addr #3
+
+; Function Attrs: uwtable
+define linkonce_odr void @"\01?g@C@@WBA@EAAXXZ"(%struct.C* %this) unnamed_addr #4 comdat align 2 !dbg !89 {
+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 !91, metadata !22), !dbg !92
+  %this1 = load %struct.C*, %struct.C** %this.addr, align 8, !dbg !93
+  %0 = bitcast %struct.C* %this1 to i8*, !dbg !93
+  %1 = getelementptr i8, i8* %0, i32 -16, !dbg !93
+  %2 = bitcast i8* %1 to %struct.C*, !dbg !93
+  tail call void @"\01?g@C@@UEAAXXZ"(%struct.C* %2), !dbg !93
+  ret void, !dbg !93
+}
+
+declare void @"\01?f@C@@UEAAXXZ"(i8*) unnamed_addr #3
+
+declare void @"\01?g@D@@UEAAXXZ"(%struct.D*) unnamed_addr #3
+
+; Function Attrs: uwtable
+define linkonce_odr void @"\01?g@D@@WBA@EAAXXZ"(%struct.D* %this) unnamed_addr #4 comdat align 2 !dbg !94 {
+entry:
+  %this.addr = alloca %struct.D*, align 8
+  store %struct.D* %this, %struct.D** %this.addr, align 8
+  call void @llvm.dbg.declare(metadata %struct.D** %this.addr, metadata !95, metadata !22), !dbg !96
+  %this1 = load %struct.D*, %struct.D** %this.addr, align 8, !dbg !97
+  %0 = bitcast %struct.D* %this1 to i8*, !dbg !97
+  %1 = getelementptr i8, i8* %0, i32 -16, !dbg !97
+  %2 = bitcast i8* %1 to %struct.D*, !dbg !97
+  tail call void @"\01?g@D@@UEAAXXZ"(%struct.D* %2), !dbg !97
+  ret void, !dbg !97
+}
+
+declare void @"\01?f@D@@UEAAXXZ"(i8*) unnamed_addr #3
+
+attributes #0 = { nounwind uwtable "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-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 "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-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #3 = { "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-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #4 = { uwtable "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-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 4.0.0 ", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
+!1 = !DIFile(filename: "t.cpp", directory: "C:\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 4.0.0 "}
+!7 = distinct !DISubprogram(name: "h", linkageName: "\01?h@@YAXXZ", scope: !1, file: !1, line: 20, type: !8, isLocal: false, isDefinition: true, scopeLine: 20, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
+!8 = !DISubroutineType(types: !9)
+!9 = !{null}
+!10 = !DILocalVariable(name: "a", scope: !7, file: !1, line: 22, type: !11)
+!11 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "A", file: !1, line: 1, size: 128, align: 64, elements: !12, vtableHolder: !11, identifier: ".?AUA@@")
+!12 = !{!13, !14, !16, !18}
+!13 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "__vtbl_ptr_type", baseType: null, size: 64)
+!14 = !DIDerivedType(tag: DW_TAG_member, name: "_vptr$A", scope: !1, file: !1, baseType: !15, size: 64, flags: DIFlagArtificial)
+!15 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !13, size: 64)
+!16 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !11, file: !1, line: 3, baseType: !17, size: 32, align: 32, offset: 64)
+!17 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
+!18 = !DISubprogram(name: "g", linkageName: "\01?g@A@@UEAAXXZ", scope: !11, file: !1, line: 2, type: !19, isLocal: false, isDefinition: false, scopeLine: 2, containingType: !11, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 0, flags: DIFlagPrototyped | DIFlagIntroducedVirtual, isOptimized: false)
+!19 = !DISubroutineType(types: !20)
+!20 = !{null, !21}
+!21 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !11, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
+!22 = !DIExpression()
+!23 = !DILocation(line: 22, column: 5, scope: !7)
+!24 = !DILocalVariable(name: "b", scope: !7, file: !1, line: 23, type: !25)
+!25 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "B", file: !1, line: 5, size: 128, align: 64, elements: !26, vtableHolder: !25, identifier: ".?AUB@@")
+!26 = !{!27, !28, !30, !31, !35}
+!27 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "__vtbl_ptr_type", baseType: null, size: 128)
+!28 = !DIDerivedType(tag: DW_TAG_member, name: "_vptr$B", scope: !1, file: !1, baseType: !29, size: 64, flags: DIFlagArtificial)
+!29 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !27, size: 64)
+!30 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !25, file: !1, line: 8, baseType: !17, size: 32, align: 32, offset: 64)
+!31 = !DISubprogram(name: "g", linkageName: "\01?g@B@@UEAAXXZ", scope: !25, file: !1, line: 6, type: !32, isLocal: false, isDefinition: false, scopeLine: 6, containingType: !25, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 0, flags: DIFlagPrototyped | DIFlagIntroducedVirtual, isOptimized: false)
+!32 = !DISubroutineType(types: !33)
+!33 = !{null, !34}
+!34 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !25, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
+!35 = !DISubprogram(name: "f", linkageName: "\01?f@B@@UEAAXXZ", scope: !25, file: !1, line: 7, type: !32, isLocal: false, isDefinition: false, scopeLine: 7, containingType: !25, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 1, flags: DIFlagPrototyped | DIFlagIntroducedVirtual, isOptimized: false)
+!36 = !DILocation(line: 23, column: 5, scope: !7)
+!37 = !DILocalVariable(name: "c", scope: !7, file: !1, line: 24, type: !38)
+!38 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "C", file: !1, line: 10, size: 320, align: 64, elements: !39, vtableHolder: !11, identifier: ".?AUC@@")
+!39 = !{!40, !41, !13, !42, !43, !47}
+!40 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !38, baseType: !11)
+!41 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !38, baseType: !25, offset: 128)
+!42 = !DIDerivedType(tag: DW_TAG_member, name: "c", scope: !38, file: !1, line: 13, baseType: !17, size: 32, align: 32, offset: 256)
+!43 = !DISubprogram(name: "g", linkageName: "\01?g@C@@UEAAXXZ", scope: !38, file: !1, line: 11, type: !44, isLocal: false, isDefinition: false, scopeLine: 11, containingType: !38, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 0, flags: DIFlagPrototyped, isOptimized: false)
+!44 = !DISubroutineType(types: !45)
+!45 = !{null, !46}
+!46 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !38, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
+!47 = !DISubprogram(name: "f", linkageName: "\01?f@C@@UEAAXXZ", scope: !38, file: !1, line: 12, type: !44, isLocal: false, isDefinition: false, scopeLine: 12, containingType: !38, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 1, thisAdjustment: 16, flags: DIFlagPrototyped, isOptimized: false)
+!48 = !DILocation(line: 24, column: 5, scope: !7)
+!49 = !DILocalVariable(name: "d", scope: !7, file: !1, line: 25, type: !50)
+!50 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "D", file: !1, line: 15, size: 384, align: 64, elements: !51, vtableHolder: !11, identifier: ".?AUD@@")
+!51 = !{!52, !13, !53, !54, !58}
+!52 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !50, baseType: !38)
+!53 = !DIDerivedType(tag: DW_TAG_member, name: "d", scope: !50, file: !1, line: 18, baseType: !17, size: 32, align: 32, offset: 320)
+!54 = !DISubprogram(name: "g", linkageName: "\01?g@D@@UEAAXXZ", scope: !50, file: !1, line: 16, type: !55, isLocal: false, isDefinition: false, scopeLine: 16, containingType: !50, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 0, flags: DIFlagPrototyped, isOptimized: false)
+!55 = !DISubroutineType(types: !56)
+!56 = !{null, !57}
+!57 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !50, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
+!58 = !DISubprogram(name: "f", linkageName: "\01?f@D@@UEAAXXZ", scope: !50, file: !1, line: 17, type: !55, isLocal: false, isDefinition: false, scopeLine: 17, containingType: !50, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 1, thisAdjustment: 16, flags: DIFlagPrototyped, isOptimized: false)
+!59 = !DILocation(line: 25, column: 5, scope: !7)
+!60 = !DILocation(line: 26, column: 1, scope: !7)
+!61 = distinct !DISubprogram(name: "A", linkageName: "\01??0A@@QEAA@XZ", scope: !11, file: !1, line: 1, type: !19, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !62, variables: !2)
+!62 = !DISubprogram(name: "A", scope: !11, type: !19, isLocal: false, isDefinition: false, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false)
+!63 = !DILocalVariable(name: "this", arg: 1, scope: !61, type: !64, flags: DIFlagArtificial | DIFlagObjectPointer)
+!64 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !11, size: 64, align: 64)
+!65 = !DILocation(line: 0, scope: !61)
+!66 = !DILocation(line: 1, column: 8, scope: !61)
+!67 = !DILocation(line: 3, column: 7, scope: !61)
+!68 = distinct !DISubprogram(name: "B", linkageName: "\01??0B@@QEAA@XZ", scope: !25, file: !1, line: 5, type: !32, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !69, variables: !2)
+!69 = !DISubprogram(name: "B", scope: !25, type: !32, isLocal: false, isDefinition: false, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false)
+!70 = !DILocalVariable(name: "this", arg: 1, scope: !68, type: !71, flags: DIFlagArtificial | DIFlagObjectPointer)
+!71 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !25, size: 64, align: 64)
+!72 = !DILocation(line: 0, scope: !68)
+!73 = !DILocation(line: 5, column: 8, scope: !68)
+!74 = !DILocation(line: 8, column: 7, scope: !68)
+!75 = distinct !DISubprogram(name: "C", linkageName: "\01??0C@@QEAA@XZ", scope: !38, file: !1, line: 10, type: !44, isLocal: false, isDefinition: true, scopeLine: 10, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !76, variables: !2)
+!76 = !DISubprogram(name: "C", scope: !38, type: !44, isLocal: false, isDefinition: false, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false)
+!77 = !DILocalVariable(name: "this", arg: 1, scope: !75, type: !78, flags: DIFlagArtificial | DIFlagObjectPointer)
+!78 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !38, size: 64, align: 64)
+!79 = !DILocation(line: 0, scope: !75)
+!80 = !DILocation(line: 10, column: 8, scope: !75)
+!81 = !DILocation(line: 13, column: 7, scope: !75)
+!82 = distinct !DISubprogram(name: "D", linkageName: "\01??0D@@QEAA@XZ", scope: !50, file: !1, line: 15, type: !55, isLocal: false, isDefinition: true, scopeLine: 15, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !83, variables: !2)
+!83 = !DISubprogram(name: "D", scope: !50, type: !55, isLocal: false, isDefinition: false, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false)
+!84 = !DILocalVariable(name: "this", arg: 1, scope: !82, type: !85, flags: DIFlagArtificial | DIFlagObjectPointer)
+!85 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !50, size: 64, align: 64)
+!86 = !DILocation(line: 0, scope: !82)
+!87 = !DILocation(line: 15, column: 8, scope: !82)
+!88 = !DILocation(line: 18, column: 7, scope: !82)
+!89 = distinct !DISubprogram(linkageName: "\01?g@C@@WBA@EAAXXZ", scope: !1, file: !1, line: 11, type: !90, isLocal: false, isDefinition: true, scopeLine: 11, flags: DIFlagArtificial, isOptimized: false, unit: !0, variables: !2)
+!90 = !DISubroutineType(types: !2)
+!91 = !DILocalVariable(name: "this", arg: 1, scope: !89, type: !78, flags: DIFlagArtificial | DIFlagObjectPointer)
+!92 = !DILocation(line: 0, scope: !89)
+!93 = !DILocation(line: 11, column: 16, scope: !89)
+!94 = distinct !DISubprogram(linkageName: "\01?g@D@@WBA@EAAXXZ", scope: !1, file: !1, line: 16, type: !90, isLocal: false, isDefinition: true, scopeLine: 16, flags: DIFlagArtificial, isOptimized: false, unit: !0, variables: !2)
+!95 = !DILocalVariable(name: "this", arg: 1, scope: !94, type: !85, flags: DIFlagArtificial | DIFlagObjectPointer)
+!96 = !DILocation(line: 0, scope: !94)
+!97 = !DILocation(line: 16, column: 16, scope: !94)