Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/compiler-rt/test/fuzzer/Memcmp64BytesTest.cpp

@@ -0,0 +1,20 @@
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+
+// Simple test for a fuzzer. The fuzzer must find a particular string.
+#include <cassert>
+#include <cstdint>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
+  const char kString64Bytes[] =
+      "123456789 123456789 123456789 123456789 123456789 123456789 1234";
+  assert(sizeof(kString64Bytes) == 65);
+  if (Size >= 64 && memcmp(Data, kString64Bytes, 64) == 0) {
+    fprintf(stderr, "BINGO\n");
+    exit(1);
+  }
+  return 0;
+}