Discussion on emacs-devel: https://lists.gnu.org/r/emacs-devel/2019-11/msg01137.html
The author is a GCC contributor. The project uses libgccjit to drive gcc to compile elisp to loadable ELF shared objects.
Instructions to play with gccemacs:
git clone https://gitlab.com/koral/gccemacs --branch=dev; cd gccemacs
(native-compile "a.el") => get a.eln. (load-file "a.eln") will reload it.
It would be really cool if this could turn into a generic emacs lisp frontend for GCC.
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