AMDGPU-PRO

#https://support.amd.com/en-us/kb-articles/Pages/AMDGPU-PRO-Install.aspx

17.40)
wget --referer=http://support.amd.com https://www2.ati.com/drivers/linux/beta/ubuntu/amdgpu-pro-17.40.2712-510357.tar.xz
chmod u+x ./amdgpu-pro-install
sudo ./amdgpu-pro-install --compute -y

17.50)
cd /usr/src/
wget -O amdgpu-pro-17.50-511655.tar.xz --referer=http://support.amd.com https://www2.ati.com/drivers/linux/ubuntu/amdgpu-pro-17.50-511655.tar.xz
tar -Jxvf amdgpu-pro-17.50-511655.tar.xz
cd amdgpu-pro-17.50-511655
rm *i386.deb
rm *lib32*

./amdgpu-pro-install --pro --opencl=legacy,pal --headless
dpkg -i *.deb

apt --fix-broken install
#apt --fix-broken -t stretch-backports --no-install-recommends install 

echo 'export LLVM_BIN=/opt/amdgpu-pro/bin' | sudo tee /etc/profile.d/amdgpu-pro.sh
reboot