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diff --git a/tools/clang-fuzzer/ExampleClangProtoFuzzer.cpp b/tools/clang-fuzzer/ExampleClangProtoFuzzer.cpp
new file mode 100644
index 000000000000..ab734e85b857
--- /dev/null
+++ b/tools/clang-fuzzer/ExampleClangProtoFuzzer.cpp
@@ -0,0 +1,44 @@
+//===-- ExampleClangProtoFuzzer.cpp - Fuzz Clang --------------------------===//
+//
+//                     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 implements a function that runs Clang on a single
+///  input and uses libprotobuf-mutator to find new inputs. This function is
+///  then linked into the Fuzzer library.
+///
+//===----------------------------------------------------------------------===//
+
+#include "cxx_proto.pb.h"
+#include "handle-cxx/handle_cxx.h"
+#include "proto-to-cxx/proto_to_cxx.h"
+
+#include "src/libfuzzer/libfuzzer_macro.h"
+
+#include <cstring>
+
+using namespace clang_fuzzer;
+
+static std::vector<const char *> CLArgs;
+
+extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv) {
+  CLArgs.push_back("-O2");
+  for (int I = 1; I < *argc; I++) {
+    if (strcmp((*argv)[I], "-ignore_remaining_args=1") == 0) {
+      for (I++; I < *argc; I++)
+        CLArgs.push_back((*argv)[I]);
+      break;
+    }
+  }
+  return 0;
+}
+
+DEFINE_BINARY_PROTO_FUZZER(const Function& input) {
+  auto S = FunctionToString(input);
+  HandleCXX(S, CLArgs);
+}