[PATCH] D18802: Improve support for i386 and i486 CPUs.

[Joerg Sonnenberger via llvm-commits]

On Fri, Apr 08, 2016 at 08:12:00PM +0000, Eric Christopher via llvm-commits wrote:
> c) That leads us to "hey, why not just set pentium as the baseline set
> of features and stop letting people select 386/486 as part of their compiles". Any thoughts here? 

There is a decent set of embedded 486-compatible systems that don't
fully implement the Pentium feature set. From a kernel perspective, 386
is broken due to a lot of stupid hardware bugs, but there are not that
many compelling reasons for killing 486 support. 64bit cmpxchg is just
not that popular on a 32bit platform.

Joerg