message: Use vectorized implementation of rint() in Eigen.
diff: @@ -1017,26 +1017,8 @@ struct round : base<T, Eigen::internal::scalar_round_half_to_even_op<T>> {};
  template <typename T>
  struct ceil : base<T, Eigen::internal::scalar_ceil_op<T>> {};
  -/** TODO(tokarip): This should go in Eigen
  - * \brief Template functor to compute the round to int value of a scalar
  - */
  -template <typename Scalar>
  -struct scalar_rint_op {
  - EIGEN_EMPTY_STRUCT_CTOR(scalar_rint_op)
  - EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE Scalar
  - operator()(const Scalar& a) const {
  -#if defined(__CUDACC__) || defined(__HIPCC__)
  - return ::rint(a);
  -#elif defined(__ANDROID__)
  - return rint(a);
  -#else
  - return std::rint(a);
  -#endif
  - }
  -};
  -
  template <typename T>
  -struct rint : base<T, scalar_rint_op<T>> {};
  +struct rint : base<T, Eigen::internal::scalar_rint_op<T>> {};
  ////////////////////////////////////////////////////////////////////////////////
  // Binary functors
  