RX 5700 XT OpenCL amdgpu-pro problem

[OnePiece]

1. uninstall pocl, retry. there's a good chance it will work
2. uninstall amdgpu-pro, install rocm. rocm is much better

It doesn't work, unfortunately.
And for ROCm, there hasn't been any official support yet...
But i've already seen the RX 5700 XT Bench on github with amdgpu-pro 19.30 on Ubuntu 18.04.3, I know it's supposed to work