GET_FIRST_LTUPLE
GET_FIRST_LTUPLE(sp->cis[CS_GLOBAL_CIS].cis,
tp = GET_FIRST_LTUPLE(sp->cis[fn].cis, flags);
#define FIND_FIRST_LTUPLE(tp, tu, f) FIND_LTUPLE_FWD(GET_FIRST_LTUPLE(tp, \