MarsSeed [1] filed a deletion request for cloog-git [2]:

This VCS package has not been maintained since 2018.

It has a few problems so it is not proper; also it uses the old source repo so its version is frozen in time in 2015.

As there do not seem to be a demand for fixing it (last comment is from 2018, apart from my remarks from May), I recommend to delete it.

AUR has the stable package, cloog, which is maintained and up-to-date.

[1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/cloog-git/