The OpenCL failures are unrelated to the original bug, so can you please file a
separate bug for them.

This bug has been outstanding for a while, and it seems like there are actually
several "bugs".  Could you please summarize the problems you are currently
having and list the versions or git HEAD commits that you are using for glamor,
xf86-video-ati, Xorg server, Linux kernel, Mesa, and LLVM.  Thanks.