gcc-4.9/gcc/testsuite/gcc.c-torture/execute/loop-6.c


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main()
{
  char c;
  char d;
  int nbits;
  c = -1;
  for (nbits = 1 ; nbits < 100; nbits++) {
    d = (1 << nbits) - 1;
    if (d == c)
      break;
  }
  if (nbits == 100)
    abort();
  exit(0);
}