RFR: 8367103: RISC-V: store cpu features in a bitmap [v4]

[Hamlin Li]

On Tue, 23 Sep 2025 07:28:52 GMT, Fei Yang <fyang at openjdk.org> wrote:

>> There is dependency between some extensions, which enforce some order not subject to this constraint. So, not sure if it's an good idea to force the aphabetic order, especailly in this pr.
>> If you think it's necessary to do so, I can do it in another separate pr, and I hope to do it after https://github.com/openjdk/jdk/pull/27171.
>
> Sure. That works for me. Thanks.

check https://github.com/openjdk/jdk/pull/27562

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PR Review Comment: https://git.openjdk.org/jdk/pull/27152#discussion_r2389328974