https://bugs.freedesktop.org/show_bug.cgi?id=89228
--- Comment #4 from Daniel Scharrer daniel@constexpr.org --- Are you still experiencing lockups?
If so, can you a) run the game with R600_DEBUG=switch_on_eop and b) compile LLVM with the patch from bug #90378 comment 2 and run without R600_DEBUG
This should at least confirm if we are seeing the same issue.