Call Arity, oneShot, or both

[Joachim Breitner]

Hi,


Am Sonntag, den 26.10.2014, 10:56 -0400 schrieb David Feuer:
> > There is also the option of combining both. Then we do not get the
> > regression, but still the improvement for fft2:
> 
> I *definitely* think we should leave Call Arity in place by default
> unless and until something strictly better comes along. One very nice
> feature is that it works for a lot of user-written code of various
> kinds without the user having to do *anything* special.

That would be great! But do we have evidence of this user-written code
that benefits? So far I have only seen relevant improvement due to
list-fusion a left-foldish function.

> oneShot seems more limited in applicability, for use primarily in
> library code. So I would personally think that it should be added,
> with an option, of course, to turn it off. I would also go for
> documenting it as experimental and provisional.

well, either we put in oneShot and use it for foldl etc. (so it wouldn’t
be optional) or we leave it out completely.

Greetings,
Joachim

-- 
Joachim “nomeata” Breitner
  mail at joachim-breitner.de • http://www.joachim-breitner.de/
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  Debian Developer: nomeata at debian.org

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