874 	struct labhash **lhp, *lh;  in enterlabel()  local
881 	for (lh = *lhp; lh != NULL; lh = lh->lh_next)  in enterlabel()
882 		if (lh->lh_hash == h && strcmp(cp->t, lh->lh_cmd->t) == 0)  in enterlabel()
884 	if ((lh = malloc(sizeof (*lh))) == NULL)  in enterlabel()
886 	lh->lh_next = *lhp;  in enterlabel()
887 	lh->lh_hash = h;  in enterlabel()
888 	lh->lh_cmd = cp;  in enterlabel()
889 	lh->lh_ref = 0;  in enterlabel()
890 	*lhp = lh;  in enterlabel()
900 	struct labhash *lh;  in findlabel()  local
906 	for (lh = labels[h & LHMASK]; lh != NULL; lh = lh->lh_next) {  in findlabel()
907 		if (lh->lh_hash == h && strcmp(name, lh->lh_cmd->t) == 0) {  in findlabel()
908 			lh->lh_ref = 1;  in findlabel()
909 			return (lh->lh_cmd);  in findlabel()
922 	struct labhash *lh, *next;  in uselabel()  local
926 		for (lh = labels[i]; lh != NULL; lh = next) {  in uselabel()
927 			next = lh->lh_next;  in uselabel()
928 			if (!lh->lh_ref)  in uselabel()
930 				    linenum, fname, lh->lh_cmd->t);  in uselabel()
931 			free(lh);  in uselabel()