On 11/4/06, Samuel Bronson wrote:

Thu Oct 12 08:55:53 EDT 2006 Samuel Bronson * Use unchecked shifts to implement Data.Bits.rotate This should get rid of those cases, maybe lower the size enough that the inliner will like it?

Note that this doesn't change the API or behaviour a single bit. Its just that the GHC doesn't know how to optimize comparisons against bitmasked (but unkown values)...