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diff --git a/clang-tools-extra/cpp11-migrate/PassByValue/PassByValue.h b/clang-tools-extra/cpp11-migrate/PassByValue/PassByValue.h
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+//===-- PassByValue.h -------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// \brief This file provides the declaration of the PassByValueTransform
+/// class.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef CPP11_MIGRATE_PASS_BY_VALUE_H
+#define CPP11_MIGRATE_PASS_BY_VALUE_H
+
+#include "Core/Transform.h"
+#include "Core/IncludeDirectives.h"
+
+class ConstructorParamReplacer;
+
+/// \brief Subclass of Transform that uses pass-by-value semantic when move
+/// constructors are available to avoid copies.
+///
+/// When a class constructor accepts an object by const reference with the
+/// intention of copying the object the copy can be avoided in certain
+/// situations if the object has a move constructor. First, the constructor is
+/// changed to accept the object by value instead. Then this argument is moved
+/// instead of copied into class-local storage. If an l-value is provided to the
+/// constructor, there is no difference in the number of copies made. However,
+/// if an r-value is passed, the copy is avoided completely.
+///
+/// For example, given:
+/// \code
+/// #include <string>
+///
+/// class A {
+///   std::string S;
+/// public:
+///   A(const std::string &S) : S(S) {}
+/// };
+/// \endcode
+/// the code is transformed to:
+/// \code
+/// #include <string>
+///
+/// class A {
+///   std::string S;
+/// public:
+///   A(std::string S) : S(std::move(S)) {}
+/// };
+/// \endcode
+class PassByValueTransform : public Transform {
+public:
+  PassByValueTransform(const TransformOptions &Options)
+      : Transform("PassByValue", Options), Replacer(0) {}
+
+  /// \see Transform::apply().
+  virtual int apply(FileOverrides &InputStates,
+                    const clang::tooling::CompilationDatabase &Database,
+                    const std::vector<std::string> &SourcePaths) LLVM_OVERRIDE;
+
+private:
+  /// \brief Setups the \c IncludeDirectives for the replacer.
+  virtual bool handleBeginSource(clang::CompilerInstance &CI,
+                                 llvm::StringRef Filename) LLVM_OVERRIDE;
+
+  llvm::OwningPtr<IncludeDirectives> IncludeManager;
+  ConstructorParamReplacer *Replacer;
+};
+
+#endif // CPP11_MIGRATE_PASS_BY_VALUE_H