Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/DebugInfo/PDB/UDTLayout.h b/linux-x64/clang/include/llvm/DebugInfo/PDB/UDTLayout.h
new file mode 100644
index 0000000..c4234c1
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+++ b/linux-x64/clang/include/llvm/DebugInfo/PDB/UDTLayout.h
@@ -0,0 +1,182 @@
+//===- UDTLayout.h - UDT layout info ----------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_DEBUGINFO_PDB_UDTLAYOUT_H
+#define LLVM_DEBUGINFO_PDB_UDTLAYOUT_H
+
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/ADT/BitVector.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/DebugInfo/PDB/PDBSymbol.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolData.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolTypeBaseClass.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolTypeBuiltin.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolTypeUDT.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolTypeVTable.h"
+#include "llvm/DebugInfo/PDB/PDBTypes.h"
+#include <cstdint>
+#include <memory>
+#include <string>
+#include <vector>
+
+namespace llvm {
+namespace pdb {
+
+class BaseClassLayout;
+class ClassLayout;
+class UDTLayoutBase;
+
+class LayoutItemBase {
+public:
+ LayoutItemBase(const UDTLayoutBase *Parent, const PDBSymbol *Symbol,
+ const std::string &Name, uint32_t OffsetInParent,
+ uint32_t Size, bool IsElided);
+ virtual ~LayoutItemBase() = default;
+
+ uint32_t deepPaddingSize() const;
+ virtual uint32_t immediatePadding() const { return 0; }
+ virtual uint32_t tailPadding() const;
+
+ const UDTLayoutBase *getParent() const { return Parent; }
+ StringRef getName() const { return Name; }
+ uint32_t getOffsetInParent() const { return OffsetInParent; }
+ uint32_t getSize() const { return SizeOf; }
+ uint32_t getLayoutSize() const { return LayoutSize; }
+ const PDBSymbol *getSymbol() const { return Symbol; }
+ const BitVector &usedBytes() const { return UsedBytes; }
+ bool isElided() const { return IsElided; }
+ virtual bool isVBPtr() const { return false; }
+
+ uint32_t containsOffset(uint32_t Off) const {
+ uint32_t Begin = getOffsetInParent();
+ uint32_t End = Begin + getSize();
+ return (Off >= Begin && Off < End);
+ }
+
+protected:
+ const PDBSymbol *Symbol = nullptr;
+ const UDTLayoutBase *Parent = nullptr;
+ BitVector UsedBytes;
+ std::string Name;
+ uint32_t OffsetInParent = 0;
+ uint32_t SizeOf = 0;
+ uint32_t LayoutSize = 0;
+ bool IsElided = false;
+};
+
+class VBPtrLayoutItem : public LayoutItemBase {
+public:
+ VBPtrLayoutItem(const UDTLayoutBase &Parent,
+ std::unique_ptr<PDBSymbolTypeBuiltin> Sym, uint32_t Offset,
+ uint32_t Size);
+
+ bool isVBPtr() const override { return true; }
+
+private:
+ std::unique_ptr<PDBSymbolTypeBuiltin> Type;
+};
+
+class DataMemberLayoutItem : public LayoutItemBase {
+public:
+ DataMemberLayoutItem(const UDTLayoutBase &Parent,
+ std::unique_ptr<PDBSymbolData> DataMember);
+
+ const PDBSymbolData &getDataMember();
+ bool hasUDTLayout() const;
+ const ClassLayout &getUDTLayout() const;
+
+private:
+ std::unique_ptr<PDBSymbolData> DataMember;
+ std::unique_ptr<ClassLayout> UdtLayout;
+};
+
+class VTableLayoutItem : public LayoutItemBase {
+public:
+ VTableLayoutItem(const UDTLayoutBase &Parent,
+ std::unique_ptr<PDBSymbolTypeVTable> VTable);
+
+ uint32_t getElementSize() const { return ElementSize; }
+
+private:
+ uint32_t ElementSize = 0;
+ std::unique_ptr<PDBSymbolTypeVTable> VTable;
+};
+
+class UDTLayoutBase : public LayoutItemBase {
+ template <typename T> using UniquePtrVector = std::vector<std::unique_ptr<T>>;
+
+public:
+ UDTLayoutBase(const UDTLayoutBase *Parent, const PDBSymbol &Sym,
+ const std::string &Name, uint32_t OffsetInParent, uint32_t Size,
+ bool IsElided);
+
+ uint32_t tailPadding() const override;
+ ArrayRef<LayoutItemBase *> layout_items() const { return LayoutItems; }
+ ArrayRef<BaseClassLayout *> bases() const { return AllBases; }
+ ArrayRef<BaseClassLayout *> regular_bases() const { return NonVirtualBases; }
+ ArrayRef<BaseClassLayout *> virtual_bases() const { return VirtualBases; }
+ uint32_t directVirtualBaseCount() const { return DirectVBaseCount; }
+ ArrayRef<std::unique_ptr<PDBSymbolFunc>> funcs() const { return Funcs; }
+ ArrayRef<std::unique_ptr<PDBSymbol>> other_items() const { return Other; }
+
+protected:
+ bool hasVBPtrAtOffset(uint32_t Off) const;
+ void initializeChildren(const PDBSymbol &Sym);
+
+ void addChildToLayout(std::unique_ptr<LayoutItemBase> Child);
+
+ uint32_t DirectVBaseCount = 0;
+
+ UniquePtrVector<PDBSymbol> Other;
+ UniquePtrVector<PDBSymbolFunc> Funcs;
+ UniquePtrVector<LayoutItemBase> ChildStorage;
+ std::vector<LayoutItemBase *> LayoutItems;
+
+ std::vector<BaseClassLayout *> AllBases;
+ ArrayRef<BaseClassLayout *> NonVirtualBases;
+ ArrayRef<BaseClassLayout *> VirtualBases;
+
+ VTableLayoutItem *VTable = nullptr;
+ VBPtrLayoutItem *VBPtr = nullptr;
+};
+
+class BaseClassLayout : public UDTLayoutBase {
+public:
+ BaseClassLayout(const UDTLayoutBase &Parent, uint32_t OffsetInParent,
+ bool Elide, std::unique_ptr<PDBSymbolTypeBaseClass> Base);
+
+ const PDBSymbolTypeBaseClass &getBase() const { return *Base; }
+ bool isVirtualBase() const { return IsVirtualBase; }
+ bool isEmptyBase() { return SizeOf == 1 && LayoutSize == 0; }
+
+private:
+ std::unique_ptr<PDBSymbolTypeBaseClass> Base;
+ bool IsVirtualBase;
+};
+
+class ClassLayout : public UDTLayoutBase {
+public:
+ explicit ClassLayout(const PDBSymbolTypeUDT &UDT);
+ explicit ClassLayout(std::unique_ptr<PDBSymbolTypeUDT> UDT);
+
+ ClassLayout(ClassLayout &&Other) = default;
+
+ const PDBSymbolTypeUDT &getClass() const { return UDT; }
+ uint32_t immediatePadding() const override;
+
+private:
+ BitVector ImmediateUsedBytes;
+ std::unique_ptr<PDBSymbolTypeUDT> OwnedStorage;
+ const PDBSymbolTypeUDT &UDT;
+};
+
+} // end namespace pdb
+} // end namespace llvm
+
+#endif // LLVM_DEBUGINFO_PDB_UDTLAYOUT_H