// Lookup the table of primops to find the best match
MethodType ptype = lookupPrimop(stable, Operators.getOpNames(_op),
new MethodType(Type.Void, tleft, tright));
if (ptype != null) {
Type arg1 = (Type) ptype.argsType().elementAt(0);
if (!arg1.identicalTo(tleft)) {
_left = new CastExpr(_left, arg1);
}
Type arg2 = (Type) ptype.argsType().elementAt(1);
if (!arg2.identicalTo(tright)) {