RFR(M): 8209420: Track membars for volatile accesses so they can be properly optimized
Andrew Haley
aph at redhat.com
Mon Aug 13 16:39:05 UTC 2018
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>
EAC8 43EB D3EF DB98 CC77 2FAD A5CD 6035 332F A671
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