INIT_LIST_HEAD(&new_worklist->live_values);
new_worklist->n_live_values = worklist->n_live_values;
list_for_each(entry, &worklist->live_values) {
worklist_entry_t *wl_entry = list_entry(entry, worklist_entry_t, head);
INIT_LIST_HEAD(&new_worklist->live_values);
new_worklist->n_live_values = worklist->n_live_values;
list_for_each(entry, &worklist->live_values) {
worklist_entry_t *wl_entry = list_entry(entry, worklist_entry_t, head);