compiler-rt/test/fuzzer/AlignmentAssumptionTest.cpp


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// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.

// Test for alignment assumption failure.

#include <assert.h>
#include <climits>
#include <cstddef>
#include <cstdint>
#include <cstdlib>
#include <iostream>

static volatile int32_t Sink;

extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
  assert(Data);
  if (Size > 0 && Data[0] == 'H') {
    Sink = 1;
    if (Size > 1 && Data[1] == 'i') {
      Sink = 2;
      if (Size > 2 && Data[2] == '!') {
        __builtin_assume_aligned(Data, 0x80000000);
      }
    }
  }
  return 0;
}