Re: "GCC needs a patch to avoid the EM64T instruction Intel screwedup"

[Andreas Jaeger <aj at suse dot de>]

Toon Moene <toon@moene.indiv.nluug.nl> writes:

> Just read the following on the Beowulf mailing list - perhaps it is
> known here already and I just didn't parse the gcc-patches mails that
> talked about EM64T correctly.  So just in case:

AMD64 implements the AMD NOW! instructions including a prefetch
instruction that was previously used by GCC.  This has been removed
already some time ago from AMD64 code so that the code runs on both
cpus.  Other than that, I'm not aware of any issue,

Andreas

>
> <QUOTE>
> As far as compilers, the AMD64 version of gcc only needs one tweak to
> avoid the instruction that Intel screwed up. Intel's compiler is in a
> non-public beta at the moment. And as for our compiler, we hope to
> support EM64T at production quality in another 4 weeks.
> </QOUTE>
>
> "our compiler" is Pathscale's.
>
> Hope this helps,

-- 
 Andreas Jaeger, aj@suse.de, http://www.suse.de/~aj
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