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diff --git a/clang-r344140b/include/llvm/MC/MCCodeEmitter.h b/clang-r344140b/include/llvm/MC/MCCodeEmitter.h
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+//===- llvm/MC/MCCodeEmitter.h - Instruction Encoding -----------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_MC_MCCODEEMITTER_H
+#define LLVM_MC_MCCODEEMITTER_H
+
+namespace llvm {
+
+class MCFixup;
+class MCInst;
+class MCSubtargetInfo;
+class raw_ostream;
+template<typename T> class SmallVectorImpl;
+
+/// MCCodeEmitter - Generic instruction encoding interface.
+class MCCodeEmitter {
+protected: // Can only create subclasses.
+ MCCodeEmitter();
+
+public:
+ MCCodeEmitter(const MCCodeEmitter &) = delete;
+ MCCodeEmitter &operator=(const MCCodeEmitter &) = delete;
+ virtual ~MCCodeEmitter();
+
+ /// Lifetime management
+ virtual void reset() {}
+
+ /// EncodeInstruction - Encode the given \p Inst to bytes on the output
+ /// stream \p OS.
+ virtual void encodeInstruction(const MCInst &Inst, raw_ostream &OS,
+ SmallVectorImpl<MCFixup> &Fixups,
+ const MCSubtargetInfo &STI) const = 0;
+};
+
+} // end namespace llvm
+
+#endif // LLVM_MC_MCCODEEMITTER_H