--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/include/llvm/FuzzMutate/FuzzerCLI.h	Fri Oct 27 17:07:41 2017 +0900
@@ -0,0 +1,51 @@
+//===-- FuzzerCLI.h - Common logic for CLIs of fuzzers ----------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Common logic needed to implement LLVM's fuzz targets' CLIs - including LLVM
+// concepts like cl::opt and libFuzzer concepts like -ignore_remaining_args=1.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_FUZZMUTATE_FUZZER_CLI_H
+#define LLVM_FUZZMUTATE_FUZZER_CLI_H
+
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Support/DataTypes.h"
+
+namespace llvm {
+
+/// Parse cl::opts from a fuzz target commandline.
+///
+/// This handles all arguments after -ignore_remaining_args=1 as cl::opts.
+void parseFuzzerCLOpts(int ArgC, char *ArgV[]);
+
+/// Handle backend options that are encoded in the executable name.
+///
+/// Parses some common backend options out of a specially crafted executable
+/// name (argv[0]). For example, a name like llvm-foo-fuzzer--aarch64-gisel
+/// might set up an AArch64 triple and the Global ISel selector. This should be
+/// called *before* parseFuzzerCLOpts if calling both.
+///
+/// This is meant to be used for environments like OSS-Fuzz that aren't capable
+/// of passing in command line arguments in the normal way.
+void handleExecNameEncodedBEOpts(StringRef ExecName);
+
+using FuzzerTestFun = int (*)(const uint8_t *Data, size_t Size);
+using FuzzerInitFun = int (*)(int *argc, char ***argv);
+
+/// Runs a fuzz target on the inputs specified on the command line.
+///
+/// Useful for testing fuzz targets without linking to libFuzzer. Finds inputs
+/// in the argument list in a libFuzzer compatible way.
+int runFuzzerOnInputs(int ArgC, char *ArgV[], FuzzerTestFun TestOne,
+                      FuzzerInitFun Init = [](int *, char ***) { return 0; });
+
+} // end llvm namespace
+
+#endif // LLVM_FUZZMUTATE_FUZZER_CLI_H