Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/IR/GlobalObject.h b/linux-x64/clang/include/llvm/IR/GlobalObject.h
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+//===-- llvm/GlobalObject.h - Class to represent global objects -*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This represents an independent object. That is, a function or a global
+// variable, but not an alias.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_IR_GLOBALOBJECT_H
+#define LLVM_IR_GLOBALOBJECT_H
+
+#include "llvm/ADT/StringRef.h"
+#include "llvm/IR/GlobalValue.h"
+#include "llvm/IR/Value.h"
+#include <string>
+#include <utility>
+
+namespace llvm {
+
+class Comdat;
+class MDNode;
+class Metadata;
+
+class GlobalObject : public GlobalValue {
+protected:
+  GlobalObject(Type *Ty, ValueTy VTy, Use *Ops, unsigned NumOps,
+               LinkageTypes Linkage, const Twine &Name,
+               unsigned AddressSpace = 0)
+      : GlobalValue(Ty, VTy, Ops, NumOps, Linkage, Name, AddressSpace),
+        ObjComdat(nullptr) {
+    setGlobalValueSubClassData(0);
+  }
+
+  Comdat *ObjComdat;
+  enum {
+    LastAlignmentBit = 4,
+    HasMetadataHashEntryBit,
+    HasSectionHashEntryBit,
+
+    GlobalObjectBits,
+  };
+  static const unsigned GlobalObjectSubClassDataBits =
+      GlobalValueSubClassDataBits - GlobalObjectBits;
+
+private:
+  static const unsigned AlignmentBits = LastAlignmentBit + 1;
+  static const unsigned AlignmentMask = (1 << AlignmentBits) - 1;
+  static const unsigned GlobalObjectMask = (1 << GlobalObjectBits) - 1;
+
+public:
+  GlobalObject(const GlobalObject &) = delete;
+
+  unsigned getAlignment() const {
+    unsigned Data = getGlobalValueSubClassData();
+    unsigned AlignmentData = Data & AlignmentMask;
+    return (1u << AlignmentData) >> 1;
+  }
+  void setAlignment(unsigned Align);
+
+  unsigned getGlobalObjectSubClassData() const {
+    unsigned ValueData = getGlobalValueSubClassData();
+    return ValueData >> GlobalObjectBits;
+  }
+
+  void setGlobalObjectSubClassData(unsigned Val) {
+    unsigned OldData = getGlobalValueSubClassData();
+    setGlobalValueSubClassData((OldData & GlobalObjectMask) |
+                               (Val << GlobalObjectBits));
+    assert(getGlobalObjectSubClassData() == Val && "representation error");
+  }
+
+  /// Check if this global has a custom object file section.
+  ///
+  /// This is more efficient than calling getSection() and checking for an empty
+  /// string.
+  bool hasSection() const {
+    return getGlobalValueSubClassData() & (1 << HasSectionHashEntryBit);
+  }
+
+  /// Get the custom section of this global if it has one.
+  ///
+  /// If this global does not have a custom section, this will be empty and the
+  /// default object file section (.text, .data, etc) will be used.
+  StringRef getSection() const {
+    return hasSection() ? getSectionImpl() : StringRef();
+  }
+
+  /// Change the section for this global.
+  ///
+  /// Setting the section to the empty string tells LLVM to choose an
+  /// appropriate default object file section.
+  void setSection(StringRef S);
+
+  bool hasComdat() const { return getComdat() != nullptr; }
+  const Comdat *getComdat() const { return ObjComdat; }
+  Comdat *getComdat() { return ObjComdat; }
+  void setComdat(Comdat *C) { ObjComdat = C; }
+
+  /// Check if this has any metadata.
+  bool hasMetadata() const { return hasMetadataHashEntry(); }
+
+  /// Get the current metadata attachments for the given kind, if any.
+  ///
+  /// These functions require that the function have at most a single attachment
+  /// of the given kind, and return \c nullptr if such an attachment is missing.
+  /// @{
+  MDNode *getMetadata(unsigned KindID) const;
+  MDNode *getMetadata(StringRef Kind) const;
+  /// @}
+
+  /// Appends all attachments with the given ID to \c MDs in insertion order.
+  /// If the global has no attachments with the given ID, or if ID is invalid,
+  /// leaves MDs unchanged.
+  /// @{
+  void getMetadata(unsigned KindID, SmallVectorImpl<MDNode *> &MDs) const;
+  void getMetadata(StringRef Kind, SmallVectorImpl<MDNode *> &MDs) const;
+  /// @}
+
+  /// Set a particular kind of metadata attachment.
+  ///
+  /// Sets the given attachment to \c MD, erasing it if \c MD is \c nullptr or
+  /// replacing it if it already exists.
+  /// @{
+  void setMetadata(unsigned KindID, MDNode *MD);
+  void setMetadata(StringRef Kind, MDNode *MD);
+  /// @}
+
+  /// Add a metadata attachment.
+  /// @{
+  void addMetadata(unsigned KindID, MDNode &MD);
+  void addMetadata(StringRef Kind, MDNode &MD);
+  /// @}
+
+  /// Appends all attachments for the global to \c MDs, sorting by attachment
+  /// ID. Attachments with the same ID appear in insertion order.
+  void
+  getAllMetadata(SmallVectorImpl<std::pair<unsigned, MDNode *>> &MDs) const;
+
+  /// Erase all metadata attachments with the given kind.
+  void eraseMetadata(unsigned KindID);
+
+  /// Copy metadata from Src, adjusting offsets by Offset.
+  void copyMetadata(const GlobalObject *Src, unsigned Offset);
+
+  void addTypeMetadata(unsigned Offset, Metadata *TypeID);
+
+protected:
+  void copyAttributesFrom(const GlobalObject *Src);
+
+public:
+  // Methods for support type inquiry through isa, cast, and dyn_cast:
+  static bool classof(const Value *V) {
+    return V->getValueID() == Value::FunctionVal ||
+           V->getValueID() == Value::GlobalVariableVal;
+  }
+
+  void clearMetadata();
+
+private:
+  void setGlobalObjectFlag(unsigned Bit, bool Val) {
+    unsigned Mask = 1 << Bit;
+    setGlobalValueSubClassData((~Mask & getGlobalValueSubClassData()) |
+                               (Val ? Mask : 0u));
+  }
+
+  bool hasMetadataHashEntry() const {
+    return getGlobalValueSubClassData() & (1 << HasMetadataHashEntryBit);
+  }
+  void setHasMetadataHashEntry(bool HasEntry) {
+    setGlobalObjectFlag(HasMetadataHashEntryBit, HasEntry);
+  }
+
+  StringRef getSectionImpl() const;
+};
+
+} // end namespace llvm
+
+#endif // LLVM_IR_GLOBALOBJECT_H