From: Ralf Baechle <ralf@linux-mips.org>
To: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
Cc: "Bradley D. LaRonde" <brad@laronde.org>,
linux-mips@linux-mips.org, Eric Christopher <echristo@redhat.com>,
Daniel Jacobowitz <dan@debian.org>
Subject: Re: [PATCH] gcc 3.4 drops "accum" clobber, replace with "hi" intime.c
Date: Sun, 18 Apr 2004 15:00:30 +0200 [thread overview]
Message-ID: <20040418130029.GA23489@linux-mips.org> (raw)
In-Reply-To: <Pine.LNX.4.55.0404131451200.15949@jurand.ds.pg.gda.pl>
On Tue, Apr 13, 2004 at 02:57:07PM +0200, Maciej W. Rozycki wrote:
>
> > OK, so this patch actually builds, and it sounds like it will do the job,
> > since "accum" means "hi and low", "lo" is already clobbered in all cases,
> > and either "hi" is the output and doesn't need clobbering (hunks 1, 2, and
> > 4), or "hi" is already clobbered (hunk 3).
>
> There are more places this should be dealt with and I have the following
> preliminary patch for this, but I'm unsure about removal of "accum" being
> completely safe for older compilers.
From everything I know about the behavior of older compilers this should
be save. "accum" was treated a little strage in some context anyway, so
I'm happy to see it go ...
Ralf
WARNING: multiple messages have this Message-ID (diff)
From: Ralf Baechle <ralf@linux-mips.org>
To: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
Cc: "Bradley D. LaRonde" <brad@laronde.org>,
linux-mips@linux-mips.org, Eric Christopher <echristo@redhat.com>,
Daniel Jacobowitz <dan@debian.org>
Subject: Re: [PATCH] gcc 3.4 drops "accum" clobber, replace with "hi" intime.c
Date: Sun, 18 Apr 2004 15:00:30 +0200 [thread overview]
Message-ID: <20040418130029.GA23489@linux-mips.org> (raw)
Message-ID: <20040418130030.nqJElSUBHZgzjhgs93gNM5dDJD7U2iVQ8tKxf83jAgA@z> (raw)
In-Reply-To: <Pine.LNX.4.55.0404131451200.15949@jurand.ds.pg.gda.pl>
On Tue, Apr 13, 2004 at 02:57:07PM +0200, Maciej W. Rozycki wrote:
>
> > OK, so this patch actually builds, and it sounds like it will do the job,
> > since "accum" means "hi and low", "lo" is already clobbered in all cases,
> > and either "hi" is the output and doesn't need clobbering (hunks 1, 2, and
> > 4), or "hi" is already clobbered (hunk 3).
>
> There are more places this should be dealt with and I have the following
> preliminary patch for this, but I'm unsure about removal of "accum" being
> completely safe for older compilers.
next prev parent reply other threads:[~2004-04-18 13:01 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-12 20:51 Work on IP30 Stanislaw Skowronek
2004-04-12 23:13 ` Ralf Baechle
2004-04-12 23:42 ` [PATCH] gcc 3.4 drops "accum" clobber, replace with "hi" in time.c Bradley D. LaRonde
2004-04-12 23:42 ` Bradley D. LaRonde
2004-04-13 0:53 ` Bradley D. LaRonde
2004-04-13 0:53 ` Bradley D. LaRonde
2004-04-13 1:02 ` Eric Christopher
2004-04-13 1:05 ` [PATCH] gcc 3.4 drops "accum" clobber, replace with "hi" intime.c Bradley D. LaRonde
2004-04-13 1:05 ` Bradley D. LaRonde
2004-04-13 1:07 ` Daniel Jacobowitz
2004-04-13 1:12 ` Bradley D. LaRonde
2004-04-13 1:12 ` Bradley D. LaRonde
2004-04-13 1:23 ` Bradley D. LaRonde
2004-04-13 1:23 ` Bradley D. LaRonde
2004-04-13 12:57 ` Maciej W. Rozycki
2004-04-18 2:39 ` Steven J. Hill
2004-04-19 11:50 ` Maciej W. Rozycki
2004-04-18 13:00 ` Ralf Baechle [this message]
2004-04-18 13:00 ` Ralf Baechle
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