503 	isl_mat_free(node->indep);  in clear_node()
2232 static __isl_give isl_mat *normalize_independent(__isl_take isl_mat *indep)  in normalize_independent()  argument
2234 	indep = isl_mat_reverse_gauss(indep);  in normalize_independent()
2235 	indep = isl_mat_lexnonneg_rows(indep);  in normalize_independent()
2236 	return indep;  in normalize_independent()
2286 	isl_mat_free(node->indep);  in isl_sched_node_update_vmap()
2289 	node->indep = isl_mat_transpose(U);  in isl_sched_node_update_vmap()
2291 	node->indep = isl_mat_drop_rows(node->indep, 0, node->rank);  in isl_sched_node_update_vmap()
2292 	node->indep = normalize_independent(node->indep);  in isl_sched_node_update_vmap()
2295 	if (!node->indep || !node->vmap || node->rank < 0)  in isl_sched_node_update_vmap()
2872 static __isl_give isl_mat *construct_trivial(__isl_keep isl_mat *indep)  in construct_trivial()  argument
2879 	n = isl_mat_rows(indep);  in construct_trivial()
2880 	n_var = isl_mat_cols(indep);  in construct_trivial()
2884 	ctx = isl_mat_get_ctx(indep);  in construct_trivial()
2891 			isl_int_neg(mat->row[i][2 * nj], indep->row[i][j]);  in construct_trivial()
2892 			isl_int_set(mat->row[i][2 * nj + 1], indep->row[i][j]);  in construct_trivial()
2918 			trivial = construct_trivial(node->indep);  in solve_lp()
4376 	node_sol = isl_mat_vec_product(isl_mat_copy(node->indep), node_sol);  in is_trivial()