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diff --git a/clang-tools-extra/clang-tidy/mpi/BufferDerefCheck.h b/clang-tools-extra/clang-tidy/mpi/BufferDerefCheck.h
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index 00000000000..8490fa1c852
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+++ b/clang-tools-extra/clang-tidy/mpi/BufferDerefCheck.h
@@ -0,0 +1,51 @@
+//===--- BufferDerefCheck.h - clang-tidy-------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MPI_BUFFER_DEREF_H
+#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MPI_BUFFER_DEREF_H
+
+#include "../ClangTidy.h"
+
+namespace clang {
+namespace tidy {
+namespace mpi {
+
+/// This check verifies if a buffer passed to an MPI (Message Passing Interface)
+/// function is sufficiently dereferenced. Buffers should be passed as a single
+/// pointer or array. As MPI function signatures specify void * for their buffer
+/// types, insufficiently dereferenced buffers can be passed, like for example
+/// as double pointers or multidimensional arrays, without a compiler warning
+/// emitted.
+///
+/// For the user-facing documentation see:
+/// http://clang.llvm.org/extra/clang-tidy/checks/mpi-buffer-deref.html
+class BufferDerefCheck : public ClangTidyCheck {
+public:
+  BufferDerefCheck(StringRef Name, ClangTidyContext *Context)
+      : ClangTidyCheck(Name, Context) {}
+  void registerMatchers(ast_matchers::MatchFinder *Finder) override;
+  void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
+
+private:
+  /// Checks for all buffers in an MPI call if they are sufficiently
+  /// dereferenced.
+  ///
+  /// \param BufferTypes buffer types
+  /// \param BufferExprs buffer arguments as expressions
+  void checkBuffers(ArrayRef<const Type *> BufferTypes,
+                    ArrayRef<const Expr *> BufferExprs);
+
+  enum class IndirectionType : unsigned char { Pointer, Array };
+};
+
+} // namespace mpi
+} // namespace tidy
+} // namespace clang
+
+#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MPI_BUFFER_DEREF_H