6332   struct iv_ca_delta *act_delta, *best_delta;  in iv_ca_prune()  local
6347       acost = iv_ca_narrow (data, ivs, cand, except_cand, &act_delta);  in iv_ca_prune()
6353 	  best_delta = act_delta;  in iv_ca_prune()
6356 	iv_ca_delta_free (&act_delta);  in iv_ca_prune()
6412   struct iv_ca_delta *act_delta, *tmp_delta;  in iv_ca_replace()  local
6426       act_delta = NULL;  in iv_ca_replace()
6450 	  act_delta = iv_ca_delta_add (group, old_cp, best_cp, act_delta);  in iv_ca_replace()
6453       if (!act_delta)  in iv_ca_replace()
6457       iv_ca_delta_commit (data, ivs, act_delta, true);  in iv_ca_replace()
6459       iv_ca_delta_commit (data, ivs, act_delta, false);  in iv_ca_replace()
6460       act_delta = iv_ca_delta_join (act_delta, tmp_delta);  in iv_ca_replace()
6464 	  *delta = act_delta;  in iv_ca_replace()
6468 	iv_ca_delta_free (&act_delta);  in iv_ca_replace()
6487   struct iv_ca_delta *best_delta = NULL, *act_delta;  in try_add_cand_for()  local
6526       act_cost = iv_ca_extend (data, ivs, cand, &act_delta, NULL,  in try_add_cand_for()
6529       act_delta = iv_ca_delta_add (group, NULL, cp, act_delta);  in try_add_cand_for()
6536 	  best_delta = act_delta;  in try_add_cand_for()
6539 	iv_ca_delta_free (&act_delta);  in try_add_cand_for()
6563 	  act_delta = NULL;  in try_add_cand_for()
6565 	  act_cost = iv_ca_extend (data, ivs, cand, &act_delta, NULL, true);  in try_add_cand_for()
6567 	  act_delta = iv_ca_delta_add (group,  in try_add_cand_for()
6569 				       cp, act_delta);  in try_add_cand_for()
6577 	      best_delta = act_delta;  in try_add_cand_for()
6580 	    iv_ca_delta_free (&act_delta);  in try_add_cand_for()
6618   struct iv_ca_delta *best_delta = NULL, *act_delta, *tmp_delta;  in try_improve_iv_set()  local
6629       acost = iv_ca_extend (data, ivs, cand, &act_delta, &n_ivs, false);  in try_improve_iv_set()
6630       if (!act_delta)  in try_improve_iv_set()
6637 	  iv_ca_delta_commit (data, ivs, act_delta, true);  in try_improve_iv_set()
6639 	  iv_ca_delta_commit (data, ivs, act_delta, false);  in try_improve_iv_set()
6640 	  act_delta = iv_ca_delta_join (act_delta, tmp_delta);  in try_improve_iv_set()
6647 	  best_delta = act_delta;  in try_improve_iv_set()
6650 	iv_ca_delta_free (&act_delta);  in try_improve_iv_set()