cnt += irg_walk_2_both(pred, pre, post, env);
}
for (i = get_irn_arity(node) - 1; i >= 0; --i) {
ir_node *pred = get_irn_n(node, i);
cnt += irg_walk_2_both(pred, pre, post, env);
}
for (i = get_irn_arity(node) - 1; i >= 0; --i) {
ir_node *pred = get_irn_n(node, i);