Fix unused warnings.

[official-gcc/graphite-test-results.git] / gcc / testsuite / gcc.c-torture / compile / pr21761.c

void f1()
{
  long bit=0, exponent;
  exponent = -exponent;
  for (bit = 1; exponent; bit <<= 1)
      if (exponent & bit)
              exponent ^= bit;
}