split_num2int     521 lj_opt_split.c 	ir->prev = split_num2int(J, nref, nref+1, irt_isguard(ir->t));
split_num2int     588 lj_opt_split.c 	  ir->prev = split_num2int(J, nir->op1, hisubst[ir->op1], 1);