Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/MC/MCDisassembler/MCRelocationInfo.h b/linux-x64/clang/include/llvm/MC/MCDisassembler/MCRelocationInfo.h
new file mode 100644
index 0000000..7836e88
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+++ b/linux-x64/clang/include/llvm/MC/MCDisassembler/MCRelocationInfo.h
@@ -0,0 +1,45 @@
+//===- llvm/MC/MCRelocationInfo.h -------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the MCRelocationInfo class, which provides methods to
+// create MCExprs from relocations, either found in an object::ObjectFile
+// (object::RelocationRef), or provided through the C API.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_MC_MCDISASSEMBLER_MCRELOCATIONINFO_H
+#define LLVM_MC_MCDISASSEMBLER_MCRELOCATIONINFO_H
+
+namespace llvm {
+
+class MCContext;
+class MCExpr;
+
+/// \brief Create MCExprs from relocations found in an object file.
+class MCRelocationInfo {
+protected:
+  MCContext &Ctx;
+
+public:
+  MCRelocationInfo(MCContext &Ctx);
+  MCRelocationInfo(const MCRelocationInfo &) = delete;
+  MCRelocationInfo &operator=(const MCRelocationInfo &) = delete;
+  virtual ~MCRelocationInfo();
+
+  /// \brief Create an MCExpr for the target-specific \p VariantKind.
+  /// The VariantKinds are defined in llvm-c/Disassembler.h.
+  /// Used by MCExternalSymbolizer.
+  /// \returns If possible, an MCExpr corresponding to VariantKind, else 0.
+  virtual const MCExpr *createExprForCAPIVariantKind(const MCExpr *SubExpr,
+                                                     unsigned VariantKind);
+};
+
+} // end namespace llvm
+
+#endif // LLVM_MC_MCDISASSEMBLER_MCRELOCATIONINFO_H