AUR (en) - opencl-amd
https://aur.archlinux.org/packages/opencl-amd01.12.2016 · I've added an opencl-amd-ncurses5 package which is an updated version of ncurses5-compat-libs but doesn't require GPG validation. You can use either, but you have to use one package that provides libtinfo5. I've added an opencl-amd-dev package which "only" includes the ROCM compiler files, for people that need more than just OpenCL support.