https://bugs.freedesktop.org/show_bug.cgi?id=55217
--- Comment #11 from Fabio Pedretti fabio.ped@libero.it 2012-09-23 07:07:12 UTC --- (In reply to comment #10)
I can't reproduce this. Mesa master on RS880 is working fine here.
A quick search in the git log returned this: http://cgit.freedesktop.org/mesa/mesa/commit/?id=7b4aefd3c9c1b04832306b8114b...
Did you compile with --enable-r600-llvm-compiler ? It's enabled in my PPA.