On Wed, 2003-08-27 at 13:34, Nicolas STURMEL wrote:
> gabor wrote:
> > On Wed, 2003-08-27 at 12:19, Nicolas STURMEL wrote:
> > 
> >>Adam Dunstan wrote:
> >>
> >>>im using gcc 3.2.3 and i was woundering if it was still going to brake every
> >>>thing if i use -march=pentium4?
> >>>
> >>
> >>I use it, and i don't have any problem.
> >>i have a celeron 2Ghz ( @ 2,7Ghz  )
> >>
> >>my flags :
> >>CFLAGS="-march=pentium4 -O2 -frename-registers -pipe -fomit-frame-pointer"
> > 
> > 
> > did you tried that famous little python program?
> 
> not at all, i didn't heard of it !
> what is it ? 

you can read about it here:
http://forums.gentoo.org/viewtopic.php?t=43373

to make it short:

start this:

python -c 'int(10.1); int(10000.3); int(1.2)'

on a 'normal' computer, it ends without any output.

on the miscompiled pentium4 computers it ends with an overflow error.

so basically if it ends with overflow error, gcc broke python because of
the march=pentium4.

gabor