I486_CPU or I586_CPU in kernel config

[b. f.]

Warren Block wrote:
> On Mon, 30 May 2011, Adam Vande More wrote:
>
> > Perhaps this is the one you meant?
> >
> > http://lists.freebsd.org/pipermail/freebsd-questions/2009-January/190568.html
>
> That's the one!  Thanks!
>
> > Actually the two threads touch on the same subject, and it seems
> > removal of those options is still desirable on newer CPU's.
>
> sys/i386/i386/support.s is mentioned, but doesn't seem to have anything
> explicitly specific for 586.  There are some i686 entries.
>
> A test for cpu_class==CPUCLASS_586 in /sys/i386/isa/npx.c is mentioned
> in the thread, but that check isn't in the current code.

Removed:

http://svnweb.FreeBSD.org/base?view=revision&revision=209460

There was a discussion about the implications for performance,
although I don't remember when it took place, and whether it was on
the mailing lists or in a PR audit trail.  If you're interested you
can track down the details.

b.