Imported Upstream version 5.18.0.246

Former-commit-id: 0c7ce5b1a7851e13f22acfd379b7f9fb304e4833

external/llvm/tools/llvm-opt-fuzzer/DummyOptFuzzer.cpp

@@ -0,0 +1,21 @@
+//===--- DummyOptFuzzer.cpp - Entry point to sanity check the fuzzer ------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Implementation of main so we can build and test without linking libFuzzer.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/FuzzMutate/FuzzerCLI.h"
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
+extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv);
+int main(int argc, char *argv[]) {
+    return llvm::runFuzzerOnInputs(argc, argv, LLVMFuzzerTestOneInput,
+                                   LLVMFuzzerInitialize);
+}