unsigned next = get_next_use_bl(uses, succ_bl, def);
DBG((uses->dbg, LEVEL_2, "\t\tnext use in succ %+F: %d\n", succ_bl, next));
unsigned next = get_next_use_bl(uses, succ_bl, def);
DBG((uses->dbg, LEVEL_2, "\t\tnext use in succ %+F: %d\n", succ_bl, next));