https://bugs.freedesktop.org/show_bug.cgi?id=30007
--- Comment #12 from Marek Olšák maraeo@gmail.com 2010-09-11 15:00:11 PDT --- Tom, I don't think we handle relative addressing when unrolling loops.
An alternative solution on ML:
http://lists.freedesktop.org/archives/mesa-dev/2010-September/002896.html