Yeah, me.
Looks like version 12 does not even work with drivers other than 13.12. I don't want to use 13.12 drivers, because I use a lot of other software that benefits from using the latest drivers. I don't mind a 2% loss of speed, as long as the miner works properly. I get this:
LOOP UNROLL:pragma unroll (line321)
Not unrolled because its trip count is unknown!
LOOP UNROLL:pragma unroll (line430)
Not unrolled because its trip count is unknown!
LOOP UNROLL:pragma unroll (line321)
Not unrolled because its trip count is unknown!
LOOP UNROLL:pragma unroll (line391)
Not unrolled because its trip count is unknown!
Error: E010:Irreducible ControlFlow Detected