}
  }
  return false;
}

// Expands the range to be larger than or equal to 1.0e-6, if it is
// very small (< 1.0e-6). This is to prevent very large quantized value by this
// range.
void ExpandVerySmallRange(const ArrayRef<double> mins,
                          const ArrayRef<double> maxs,
                          SmallVectorImpl<double>& effective_mins,
                          SmallVectorImpl<double>& effective_maxs) {