1 // This file is distributed under the University of Illinois Open Source
2 // License. See LICENSE.TXT for details.
3 
4 // When tracing data flow, explode the number of DFSan labels.
5 #include <cstddef>
6 #include <cstdint>
7 
8 static volatile int sink;
9 
10 __attribute__((noinline))
11 void f(uint8_t a, uint8_t b, uint8_t c, uint8_t d) {
12   if (a == b + 1 && c == d + 2)
13     sink++;
14 }
15 
16 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
17   for (size_t a = 0; a < Size; a++)
18     for (size_t b = 0; b < Size; b++)
19       for (size_t c = 0; c < Size; c++)
20         for (size_t d = 0; d < Size; d++)
21           f(Data[a], Data[b], Data[c], Data[d]);
22   return 0;
23 }
24