Inst buildCCall(Code& code, Value* origin, const Vector<Arg>& arguments)
{
    Inst inst(Patch, origin, Arg::special(code.cCallSpecial()));
    inst.args.append(arguments[0]);
    inst.args.append(Tmp(GPRInfo::returnValueGPR));
    inst.args.append(Tmp(GPRInfo::returnValueGPR2));
    inst.args.append(Tmp(FPRInfo::returnValueFPR));
    for (unsigned i = 1; i < arguments.size(); ++i) {
        Arg arg = arguments[i];
        if (arg.isTmp())
            inst.args.append(arg);
    }
    return inst;
}