array = isl_alloc_array(qp->div->ctx, struct isl_div_sort_info,
qp->div->n_row);
pos = isl_alloc_array(qp->div->ctx, int, qp->div->n_row);
array = isl_alloc_array(qp->div->ctx, struct isl_div_sort_info,
qp->div->n_row);
pos = isl_alloc_array(qp->div->ctx, int, qp->div->n_row);