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Re: RFC: Policy for arch specs

On 1 Jun 1997, Guy Maor wrote:

> Galen Hazelwood <galenh@micron.net> writes:
> > Perhaps.  Anybody have any serious arguments?  I think the reason we
> > configure gcc as i486 is so it automatically optimizes for the 486; it's
> > a good middle ground.
> I think the only optimization gcc 2.7.* does for i486 is instruction
> alignment.  The Pentium has a better fetch unit so doesn't need any
> alignment (it never incurs a misfetch penalty) so optimizing for i486
> will at least give some code bloat.
> I don't think it does any optimization at all for pentium.

No not in 2.7.x, but there are noticable differences for P5 and P6 
in gcc 2.8.


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