RFR: 8369616: JavaFrameAnchor on RISC-V has unnecessary barriers and wrong store order in MacroAssembler [v2]

[Fei Yang]

On Mon, 13 Oct 2025 15:27:04 GMT, Feilong Jiang <fjiang at openjdk.org> wrote:

>> Same as [JDK-8369190](https://bugs.openjdk.org/browse/JDK-8369190), but for the RISC-V port.
>> 
>> Testing:
>> - [x] tier1-3
>
> Feilong Jiang has updated the pull request incrementally with one additional commit since the last revision:
> 
>   update comments

Marked as reviewed by fyang (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/27757#pullrequestreview-3334702700