RFR: 8256999: Add C2 intrinsic for Reference.refersTo and PhantomReference::refersTo [v2]

Fri Nov 27 19:05:00 UTC 2020

On Thu, 26 Nov 2020 13:51:05 GMT, Roman Kennke <rkennke at openjdk.org> wrote:

>> Vladimir Kozlov has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision:
>> 
>>  - Merge branch 'master' into JDK-8256999
>>  - Added ZLoadBarrierElided = 0 definition.
>>    Removed is_exact argument in load_field_from_object().
>>    Added Shenandoah support for narrow phantom accesses.
>>  - 8256999: Add C2 intrinsic for Reference.refersTo and PhantomReference::refersTo
>
> Shenandoah parts look good to me! Thanks!

@fisk and @shipilev are you fine with updated version?

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PR: https://git.openjdk.java.net/jdk/pull/1425