RFR: 8305895: Implement JEP 450: Compact Object Headers (Experimental) [v23]

[Hamlin Li]

On Thu, 19 Sep 2024 15:01:26 GMT, Hamlin Li <mli at openjdk.org> wrote:

>> Roman Kennke has updated the pull request incrementally with two additional commits since the last revision:
>> 
>>  - Merge remote-tracking branch 'lilliput/JEP-450-temporary-fix-branch-2' into JDK-8305895-v4
>>  - review feedback
>
> In both aarch64.ad and x86_64.ad, `MachUEPNode::format` might need some change accordingly?

> AFAIK, @Hamlin-Li is working on the RISCV port. Not sure who would do s390. If it's available before intergration, I'll include it, but I'll not wait for it.

Thanks! We're having some internal (riscv specific) discussion & review, should be able to provide the patch soon.

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PR Comment: https://git.openjdk.org/jdk/pull/20677#issuecomment-2413178574