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Date: | Sat, 28 Jan 2006 01:33:35 -0500 |
From: | Christopher Faylor <cgf-no-personal-reply-please AT cygwin DOT com> |
To: | cygwin AT cygwin DOT com |
Subject: | Re: i686-pc-cygwin on an i586 |
Message-ID: | <20060128063335.GC9904@trixie.casa.cgf.cx> |
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On Fri, Jan 27, 2006 at 03:06:44PM -0700, Eric Blake wrote: >According to Dave Korn on 1/27/2006 9:34 AM: >>Nope, don't worry about it, that's a bit of a red-herring. By default, >>the code gcc generates is good for everything from '486 up. The >>instruction scheduling and choice of which instructions to use may be >>tuned to be optimal for a 686 and so may be less-than-optimal on a >>'586, but there should not be any actual backward-compatibility issues. > >Speaking of which, should the next release of cygwin gcc be configured >to generate code tuned for 686, rather than penalizing most modern CPUs >with 386-compatible but slower code sequences? Why do you assume that this is not already the case? I use i686-pc-cygwin as the target for everything that I build and I use a i686-pc-cygwin-gcc cross compiler. cgf -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
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