RFR: 8329597: C2: Intrinsify Reference.clear [v3]

[Kim Barrett]

On Mon, 30 Sep 2024 16:45:12 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> src/java.base/share/classes/java/lang/ref/Reference.java line 420:
>> 
>>> 418:     /* Implementation of clear(), also used by enqueue().  A simple
>>> 419:      * assignment of the referent field won't do for some garbage
>>> 420:      * collectors.
>> 
>> Description of clear0 is rendered stale by this change.  The first sentence is no longer true, since it's now
>> clearImpl that has that role.  The second sentence probably ought to also be moved into the description of
>> clearImpl.
>
> Thanks! I tightened up comments a bit, take another look?

Yes, that's better.  Thanks.

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PR Review Comment: https://git.openjdk.org/jdk/pull/20139#discussion_r1782006243