[Haskell-cafe] speed: ghc vs gcc vs jhc

[Alberto G. Corona]

John,
please update the section  "All is not well in jhc-land" because now
things are better isn´t?

2009/2/21 John Meacham <john at repetae.net>
>
> On Sat, Feb 21, 2009 at 02:24:59AM +0300, Bulat Ziganshin wrote:
> > Hello John,
> >
> > Saturday, February 21, 2009, 2:14:25 AM, you wrote:
> >
> > > Heh. He probably meant something more like "jhc is not a production
> > > compiler" which is true for a lot of projects. For projects of
> > > substantial size or that require many extensions, jhc falls somewhat
> > > short. It is getting better though. Of course, help is always
> > > appreciated. :)
> >
> > what is "substantial size"? can jhc be used for video codec, i.e.
> > probably no extensions - just raw computations, and thousands or tens
> > of thousands LOCs?
>
> Perhaps. A bigger issue in practice is that the larger a program is, the
> more likely it is to depend on some library that depends on a ghc
> extension. However, base is almost 10000 lines and jhc can compile that
> into a library without too much effort nowadays, so it might scale.
> If you try and find it fails, then please submit a bug report to
> jhc at haskell.org. Too many bugs go unreported I find.
>
> If the haskell code has an interface that is strict and unboxable (i.e.
> only unboxable values passed, such as a video codec passing floats might
> be) then compiling it with jhc and foreign exporting the functions then
> foreign importing them into ghc for the bulk of the program would
> probably work. Probably not worth the effort, but could be an
> interesting experiment.
>
>        JOhn
>
> --
> John Meacham - ⑆repetae.net⑆john⑈
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