Update list of i686-class processors in sysdeps/x86/cpu-features.h

[Joseph Myers]

On Wed, 19 Sep 2018, H.J. Lu wrote:

> On Wed, Sep 19, 2018 at 5:39 AM, Joseph Myers <joseph@codesourcery.com> wrote:
> 
> >>
> >> Geode lacks support for long NOPs, but our i686 port requires them.
> >
> > Requires them where?  Through the use of -Wa,-mtune=i686 in
> > sysdeps/i386/i686/Makefile, or also through explicit uses?
> 
> CET is allowed for i686, which uses long NOPs.

Isn't that just a matter of what's enabled by an explicit configure 
option, and so not relevant to conditionals that might be needed when 
merging / moving some code from i686 sysdeps directories to the generic 
i386 versions?

-- 
Joseph S. Myers
joseph@codesourcery.com