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Re: GNU Fortran 90?


Stan Shebs wrote:

> Apparently there are a whole bunch of scientists very jazzed about
> the idea of running OS X on G4s (so sayeth marketing weenies), so
> it's possible that Apple will develop an official interest in making
> sure G95 is available...

I feel we have to tread carefully here ... Do these people assume that
- because Fortran 9x supports array syntax - they can automagically use
the AltiVec instructions of the G4 ?  1)

Note that Andy Vaught decided months ago to decompose all array
arithmetic into its consituent loops in g95 because that makes code
generation much easier.

This means that to be able to use AltiVec, we have to build a
vectorising pass into the middle-end of GCC (and then g77 code would
profit as well).

Hope this helps,

-- 
Toon Moene - mailto:toon@moene.indiv.nluug.nl - phoneto: +31 346 214290
Saturnushof 14, 3738 XG  Maartensdijk, The Netherlands
GNU Fortran 77: http://gcc.gnu.org/onlinedocs/g77_news.html
GNU Fortran 95: http://g95.sourceforge.net/ (under construction)

1) Despite extensive Web searches, I haven't been able to hit a
   instruction list/description of AltiVec.  Do you know of a
   pubicly available one ?  TIA.

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