RFR: 8263107: PSPromotionManager::copy_and_push_safe_barrier needs acquire memory barrier [v2]

[Kim Barrett]

On Wed, 9 Jun 2021 12:17:17 GMT, Martin Doerr <mdoerr at openjdk.org> wrote:

>> Kim Barrett has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   avoid reloading forwardee
>
> Thanks a lot for checking! That makes sense.

Thanks @TheRealMDoerr , @tschatzl , @walulyai for reviews.

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PR: https://git.openjdk.java.net/jdk/pull/4371