Common subexpression elemination (CSE)

[Dinko Tenev]

On 11/27/06, Lennart Augustsson <lennart at augustsson.net> wrote:
>
> GHC doesn't normally do CSE.  CSE can cause space leaks, so you can't
> do it willy-nilly.
> I'm sure there are some strict contexts where it could be done
> safely, but I don't think ghc uses that information (yet).
>
>         -- Lennart
>
>

My apologies in advance for asking possibly stupid questions, but I don't
understand this.

How exactly can CSE cause space leaks, and what does this have to do with
strictness?


Cheers,

Dinko
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.haskell.org/pipermail/glasgow-haskell-users/attachments/20061128/8988a4a6/attachment.htm