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Re: i686-pc-cygwin on an i586
- From: Eric Blake <ebb9 at byu dot net>
- To: Dave Korn <dave dot korn at artimi dot com>
- Cc: cygwin at cygwin dot com
- Date: Fri, 27 Jan 2006 15:06:44 -0700
- Subject: Re: i686-pc-cygwin on an i586
- References: <008401c6235f$9280aed0$a501a8c0@CAM.ARTIMI.COM>
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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?
Life is short - so eat dessert first!
Eric Blake email@example.com
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