xref: /llvm-project/compiler-rt/test/fuzzer/IntegerOverflowTest.cpp (revision 65132e2118140200dc57e2df9d8713dd07e72119)
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 // Simple test for a fuzzer. The fuzzer must find the string "Hi" and cause an
6 // integer overflow.
7 #include <cstddef>
8 #include <cstdint>
9 
10 static int Val = 1 << 30;
11 
LLVMFuzzerTestOneInput(const uint8_t * Data,size_t Size)12 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
13   if (Size >= 2 && Data[0] == 'H' && Data[1] == 'i')
14     Val += Val;
15   return 0;
16 }
17 
18