https://bugs.freedesktop.org/show_bug.cgi?id=92923
--- Comment #9 from pat freedesktop.org@psycho3d.de --- Hey Nicolai, thanks for the fast patch.
I've patched rev 5e3edd4 of the 32bit package (lib32-mesa-git, lib32-mesa-git-debug, lib32-mesa-libgl-git) and started the 32bit game binary. It's still at 3-4 FPS.