RFR(M): 8209420: Track membars for volatile accesses so they can be properly optimized

[Andrew Haley]

On 08/13/2018 05:20 PM, Andrew Dinn wrote:
> 1) the store saves a value that was just loaded from the same address

That doesn't sound right.  If the accesses are volatile then every
core should see them in the same total order.  This IRIW problem should
be detectable in jcstress.  I'll do a run.

-- 
Andrew Haley
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
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