Mark Taylor wrote:

> >
> > BTW, on my Celeron 400, the MSVC 6 compiled version with "/Ox" is about 6%
> > faster than the version I compiled with Cygwin B20 (egcs-2.91.57) and
> > "-O9 -fomit-frame-pointer -march=pentium -mcpu=pentium -ffast-math -funroll-
> > loops".

have you tried -march=pentiumpro?  The celeron has the p6 core so pentiumpro is
more appropriate than pentium.  Also, -march=<chiptype> implies -mcpu=<chiptype>
so you don't need to specify -mcpu

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