From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 10411 invoked by alias); 24 Jan 2005 09:24:22 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 10378 invoked by alias); 24 Jan 2005 09:24:19 -0000 Date: Mon, 24 Jan 2005 09:24:00 -0000 Message-ID: <20050124092419.10377.qmail@sourceware.org> From: "marekm at amelek dot gda dot pl" To: gcc-bugs@gcc.gnu.org In-Reply-To: <20050123225538.19597.dmixm@marine.febras.ru> References: <20050123225538.19597.dmixm@marine.febras.ru> Reply-To: gcc-bugzilla@gcc.gnu.org Subject: [Bug target/19597] [4.0 Regression] avr-gcc 4.0, multiplication by constant, very long code X-Bugzilla-Reason: CC X-SW-Source: 2005-01/txt/msg03480.txt.bz2 List-Id: ------- 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