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Re: gcc support of mips32 release 2

To: Dominic Sweetman <dom@mips.com>
Subject: Re: gcc support of mips32 release 2
From: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
Date: Thu, 18 Mar 2004 14:18:01 +0100 (CET)
Cc: Eric Christopher <echristo@redhat.com>, Long Li <long21st@yahoo.com>, linux-mips@linux-mips.org, David Ung <davidu@mips.com>, Nigel Stephens <nigel@mips.com>
In-reply-to: <16456.21112.570245.1011@arsenal.mips.com>
Organization: Technical University of Gdansk
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References: <20040305075517.42647.qmail@web40404.mail.yahoo.com> <1078478086.4308.14.camel@dzur.sfbay.redhat.com> <16456.21112.570245.1011@arsenal.mips.com>
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On Fri, 5 Mar 2004, Dominic Sweetman wrote:

> 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.

 As a side note, it makes me wonder where the borderline of the RISC
actually is.  Even Intel abandoned support for bit insert/extract
instructions after an initial attempt for the i386.  They figured out the
implementation was too complicated. ;-)

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +

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