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Re: gcc support of mips32 release 2

To: Eric Christopher <echristo@redhat.com>
Subject: Re: gcc support of mips32 release 2
From: Dominic Sweetman <dom@mips.com>
Date: Fri, 5 Mar 2004 10:12:08 +0000
Cc: Long Li <long21st@yahoo.com>, linux-mips@linux-mips.org
Cc: David Ung <davidu@mips.com>, Nigel Stephens <nigel@mips.com>
In-reply-to: <1078478086.4308.14.camel@dzur.sfbay.redhat.com>
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> > Seems to me, this mips32 release 2 is an extension of
> > mips32, added some new instructions, eg. EHB, etc. So
> > would it be necessary that gcc be updated, like what
> > gnu as has done, in the future to reflect this
> > extension?
> 
> It will be in the soon to be released 3.4. Contributed by Chris
> Demetriou of Broadcom.

We added patterns to let our (old) GCC use the new rotates and
bit-insert/extracts, at least in simple cases.  I'm not sure whether
we've put those in our 3.4 evolution tree yet, but if we have we
should push those out.

--
Dominic Sweetman
MIPS Technologies.


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