983   re_dfastate_t **sifted_states;  in prune_impossible_nodes()  local
996   sifted_states = re_malloc (re_dfastate_t *, match_last + 1);  in prune_impossible_nodes()
997   if (BE (sifted_states == NULL, 0))  in prune_impossible_nodes()
1014 	  sift_ctx_init (&sctx, sifted_states, lim_states, halt_node,  in prune_impossible_nodes()
1020 	  if (sifted_states[0] != NULL || lim_states[0] != NULL)  in prune_impossible_nodes()
1036       ret = merge_state_array (dfa, sifted_states, lim_states,  in prune_impossible_nodes()
1045       sift_ctx_init (&sctx, sifted_states, lim_states, halt_node, match_last);  in prune_impossible_nodes()
1050       if (sifted_states[0] == NULL)  in prune_impossible_nodes()
1057   mctx->state_log = sifted_states;  in prune_impossible_nodes()
1058   sifted_states = NULL;  in prune_impossible_nodes()
1063   re_free (sifted_states);  in prune_impossible_nodes()
1658       null_cnt = (sctx->sifted_states[str_idx] == NULL) ? null_cnt + 1 : 0;  in sift_states_backward()
1661 	  memset (sctx->sifted_states, '\0',  in sift_states_backward()
1727 	  && STATE_NODE_CONTAINS (sctx->sifted_states[str_idx + 1],  in build_sifted_states()
1817     sctx->sifted_states[str_idx] = NULL;  in update_cur_sifted_state()
1838       sctx->sifted_states[str_idx] = re_acquire_state (&err, dfa, dest_nodes);  in update_cur_sifted_state()
2176   local_sctx.sifted_states = NULL; /* Mark that it hasn't been initialized.  */  in sift_states_bkref()
2209 	      || sctx->sifted_states[to_idx] == NULL  in sift_states_bkref()
2210 	      || !STATE_NODE_CONTAINS (sctx->sifted_states[to_idx], dst_node)  in sift_states_bkref()
2215 	  if (local_sctx.sifted_states == NULL)  in sift_states_bkref()
2230 	  cur_state = local_sctx.sifted_states[str_idx];  in sift_states_bkref()
2237 				       local_sctx.sifted_states,  in sift_states_bkref()
2242 	  local_sctx.sifted_states[str_idx] = cur_state;  in sift_states_bkref()
2252   if (local_sctx.sifted_states != NULL)  in sift_states_bkref()
2272       !STATE_NODE_CONTAINS (sctx->sifted_states[str_idx + naccepted],  in sift_states_iter_mb()
4404   sctx->sifted_states = sifted_sts;  in sift_ctx_init()