message: Addressing CUDA9 shfl deprecation
diff: namespace cv { namespace cuda { namespace device
  {
  +#if __CUDACC_VER_MAJOR__ >= 9
  +# define __shfl(x, y, z) __shfl_sync(0xFFFFFFFFU, x, y, z)
  +# define __shfl_up(x, y, z) __shfl_up_sync(0xFFFFFFFFU, x, y, z)
  +# define __shfl_down(x, y, z) __shfl_down_sync(0xFFFFFFFFU, x, y, z)
  +#endif
  template <typename T>
  __device__ __forceinline__ T shfl(T val, int srcLane, int width = warpSize)
  {
  @@ -148,6 +153,10 @@ namespace cv { namespace cuda { namespace device
  }
  }}}
  +# undef __shfl
  +# undef __shfl_up
  +# undef __shfl_down
  +
  //! @endcond
  #endif // OPENCV_CUDA_WARP_SHUFFLE_HPP
  