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From:	"C. J." <dusk47 AT hotmail DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: 1.3.10 memcmp() bug
Date:	Wed, 24 Apr 2002 12:30:14 -0700
Mime-Version:	1.0
Message-ID:	<F177N4CxpAOAkK5LqN300007454@hotmail.com>
X-OriginalArrivalTime:	24 Apr 2002 19:30:14.0749 (UTC) FILETIME=[7552B0D0:01C1EBC6]

> >  I wasnt sure wheter I should post about this on gcc bug report list or
> > here. Anyways, it seems that using -O2 flag with gcc causes huge 
>slowdown
> > in memcmp(). However i dont see performance drop under linux, so I 
>suppose
> > it is cygwin issue.

cygwin's gcc version may be using an outdated x86 'optimization' for memcmp. 
  VC++ has a similar problem, see this:

http://groups.google.com/groups?hl=en&threadm=ucZKhyE3BHA.1464%40tkmsftngp02&rnum=3&prev=/groups%3Fq%3Drep%2Bgroup:microsoft.public.dotnet.languages.vc%26hl%3Den%26selm%3DucZKhyE3BHA.1464%2540tkmsftngp02%26rnum%3D3


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