I do not think so, seems beyond the engineereing logic behind FMS.
FCTM
Note: The FMS predictions do not take into account the slat or flap failures. Since fuel consumption is increased, these predictions are not valid.
FCOM
FMS PRED UNRELIABLE
Disregard FMS fuel predictions and refer to QRH/PER-B Fuel Penalty Factors Tables in order to find the applicable Fuel Penalty Factor.