[Haskell-cafe] Garbage collecting pointers

[Max Rabkin]

On Fri, Mar 26, 2010 at 11:21 PM, Brandon S. Allbery KF8NH
<allbery at ece.cmu.edu> wrote:
> On Mar 26, 2010, at 16:28 , Mads Lindstrøm wrote:
>>
>> For some time I have been thinking about an idea, which could limit
>> Haskell's memory footprint. I don't know if the idea is crazy or clever,
>
> This is called pointer tagging.  The original STG design avoided it because
> of the perceived performance loss in removing the tags before using the
> pointer, but as I understand it the current GHC design uses limited tagging.

I'd say it's really CDR coding --
http://en.wikipedia.org/wiki/CDR_coding -- pointer tagging is just a
part of it.

[Sorry, Brandon, my reply all button seems elusive these days]

--Max