No subject

this code is specific to my system.  I'm re-building ghc7 now
(bootstrapping ghc7 with ghc7 instead of ghc6), so maybe that will
make something happier.  If it doesn't, how does one go about figuring
out why a program isn't being compiled to use primitive operations?
just running ghc -v5 gives me so much information that I can't make
any sense of it.  Is there a less shotgun-like approach to seeing
where the compiler is getting confused?