PF_OP_RRG
$$->op = PF_OP_RRG;
if ((op == PF_OP_RRG && a > b) || /* 34:12, i.e. none */
r->t = PF_OP_RRG;
else if (op == PF_OP_RRG)
case PF_OP_RRG:
if ((op == PF_OP_RRG && a > b) || /* 34:12, i.e. none */
else if (op == PF_OP_RRG)
$$.op = PF_OP_RRG;