LLVM  4.0.0
SignedIntOverflowTest.cpp
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1 // This file is distributed under the University of Illinois Open Source
2 // License. See LICENSE.TXT for details.
3 
4 // Test for signed-integer-overflow.
5 #include <assert.h>
6 #include <cstdint>
7 #include <cstdlib>
8 #include <cstddef>
9 #include <iostream>
10 #include <climits>
11 
12 static volatile int Sink;
13 static int Large = INT_MAX;
14 
15 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
16  assert(Data);
17  if (Size > 0 && Data[0] == 'H') {
18  Sink = 1;
19  if (Size > 1 && Data[1] == 'i') {
20  Sink = 2;
21  if (Size > 2 && Data[2] == '!') {
22  Large++; // int overflow.
23  }
24  }
25  }
26  return 0;
27 }
28 
int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size)
static volatile int Sink
static int Large
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())