Int vs Word performance?

[Claus Reinke]

| | A quick grep shows almost no specialization at all for Word, or for
| | IntXX/WordXX (see below). Still, none of that seems to explain the
| | example repeated at the top of this message.
|
| We'd be delighted to apply suitable library patches.

>PS: in the case that no one gets around to creating such a patch, 
>creating a ticket that documents the problem and points to the 
>needed specialisations would be a start

Since more that just SPECIALI[SZ]E pragmas seem involved,
I've created a ticket to summarize this thread's findings:

http://hackage.haskell.org/trac/ghc/ticket/3055

Claus