  We prove that for a compact toric manifold whose anti-canonical divisor is
numerically effective, the Lagrangian Floer superpotential defined by
Fukaya-Oh-Ohto-Ono is equal to the superpotential written down by using the
toric mirror map under a convergence assumption. This gives a method to compute
open Gromov-Witten invariants using mirror symmetry.
