compilation of pattern-matching?

[Duncan Coutts]

On Wed, 2009-03-25 at 09:18 +0000, Simon Peyton-Jones wrote:

> * More promising might be to say "this is the hot branch".  That information about frequency could in principle be used by the back end to generate better code.  However, I am unsure how
>         a) to express this info in source code
>         b) retain it throughout optimisation

Claus, last time I asked about this approach Simon filed the following
ticket:

http://hackage.haskell.org/trac/ghc/ticket/849

If you add a new commentary page then it is at least worth
cross-referencing this ticket.

Duncan