compiler-rt/test/fuzzer/ShrinkControlFlowSimpleTest.cpp

   1 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   2 // See https://llvm.org/LICENSE.txt for license information.
   3 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   4
   5 // Test that we can find the minimal item in the corpus (3 bytes: "FUZ").
   6 #include <cstddef>
   7 #include <cstdint>
   8 #include <cstdio>
   9 #include <cstdlib>
  10 #include <cstring>
  11
  12 static volatile int Sink;
  13
  14 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
  15   if (Size < 2) return 0;
  16   if (Data[0] == 'F' && Data[Size / 2] == 'U' && Data[Size - 1] == 'Z')
  17     Sink++;
  18   return 0;
  19 }
  20