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From: "marekm at amelek dot gda dot pl" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/19597] [4.0 Regression] avr-gcc 4.0, multiplication by constant, very long code
Date: Mon, 24 Jan 2005 09:24:00 -0000	[thread overview]
Message-ID: <20050124092419.10377.qmail@sourceware.org> (raw)
In-Reply-To: <20050123225538.19597.dmixm@marine.febras.ru>


------- Additional Comments From marekm at amelek dot gda dot pl  2005-01-24 09:24 -------
Subject: Re:  [4.0 Regression] avr-gcc 4.0, multiplication by constant, very long code

On Mon, Jan 24, 2005 at 08:56:46AM -0000, giovannibajo at libero dot it wrote:

> Marek, can you review this patch please?

> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19597

Thanks.  Reviewing this will take some time - I agree the current rtx
costs are not perfect, but changing them can affect generated code in
unexpected ways.  It would be good to test it a lot on various test
cases, to make sure it doesn't introduce new code size regressions...

Marek



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19597


  parent reply	other threads:[~2005-01-24  9:24 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-01-23 22:55 [Bug rtl-optimization/19597] New: " dmixm at marine dot febras dot ru
2005-01-23 23:02 ` [Bug middle-end/19597] [4.0 Regression] " pinskia at gcc dot gnu dot org
2005-01-23 23:56 ` giovannibajo at libero dot it
2005-01-24  0:49 ` bernie at develer dot com
2005-01-24  2:54 ` roger at eyesopen dot com
2005-01-24  8:17 ` [Bug target/19597] " pinskia at gcc dot gnu dot org
2005-01-24  8:56 ` giovannibajo at libero dot it
2005-01-24  9:24 ` marekm at amelek dot gda dot pl [this message]
2005-01-24 10:28 ` bernie at develer dot com
2005-01-24 13:16 ` bernie at develer dot com
2005-01-25 20:33 ` schlie at comcast dot net
2005-01-25 21:23 ` roger at eyesopen dot com
2005-01-25 23:20 ` schlie at comcast dot net
2005-02-09 12:44 ` pinskia at gcc dot gnu dot org
2005-02-09 13:06 ` pinskia at gcc dot gnu dot org
2005-02-09 13:09 ` pinskia at gcc dot gnu dot org
2005-02-09 20:09 ` cvs-commit at gcc dot gnu dot org
2005-02-09 20:13 ` pinskia at gcc dot gnu dot org

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