[PATCH] D59566: [X86] Correct the value of MaxAtomicInlineWidth for pre-586 cpus

[Joerg Sonnenberger via llvm-commits]

On Tue, Mar 19, 2019 at 10:15:57PM +0000, Eli Friedman via Phabricator via llvm-commits wrote:
> Technically, I guess the default for MaxAtomicInlineWidth should be
> zero, since 386 doesn't have cmpxchg... but I don't think anyone cares,
> so we'll pretend 486 is the oldest possible x86 processor. Probably
> enough to just have a test to check that the defines are set properly for an 486 target.

I don't think anyone cares about i386, especially since it is
Uniprocessor only. i486 is much more problematic in this regard.

Joerg