dense->end.resize(dense->dims);
  dense->strides.resize(dense->dims);
  dense->begin_mask = 0;
  dense->end_mask = 0;
  dense->shrink_axis_mask = 0;

  // Count number of new_axis after ellipsis. This helps in calculating the
  // number of dimensions ellipsis represents in the sparse spec.
  bool ellipsis_seen = false;
  int num_new_axis_after_ellipsis = 0;