12946cd70SChandler Carruth // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 22946cd70SChandler Carruth // See https://llvm.org/LICENSE.txt for license information. 32946cd70SChandler Carruth // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 410ab2aceSGeorge Karpenkov 510ab2aceSGeorge Karpenkov // Test for a fuzzer: must find the case where a particular basic block is 610ab2aceSGeorge Karpenkov // executed many times. 7*3ba498d1SYouling Tang #include <cstdint> 810ab2aceSGeorge Karpenkov #include <iostream> 910ab2aceSGeorge Karpenkov LLVMFuzzerTestOneInput(const uint8_t * Data,size_t Size)1010ab2aceSGeorge Karpenkovextern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { 1110ab2aceSGeorge Karpenkov int Num = 0; 1210ab2aceSGeorge Karpenkov for (size_t i = 0; i < Size; i++) 1310ab2aceSGeorge Karpenkov if (Data[i] == 'A' + i) 1410ab2aceSGeorge Karpenkov Num++; 1510ab2aceSGeorge Karpenkov if (Num >= 4) { 1610ab2aceSGeorge Karpenkov std::cerr << "BINGO!\n"; 1710ab2aceSGeorge Karpenkov exit(1); 1810ab2aceSGeorge Karpenkov } 1910ab2aceSGeorge Karpenkov return 0; 2010ab2aceSGeorge Karpenkov } 21