RFR: 8356159: RISC-V: Add Zabha [v12]

[Robbin Ehn]

On Tue, 3 Jun 2025 13:22:04 GMT, Feilong Jiang <fjiang at openjdk.org> wrote:

>> Robbin Ehn 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 21 additional commits since the last revision:
>> 
>>  - Merge branch 'master' into 8356159
>>  - Set ins cost to 2xVOLA for cmpxchg
>>  - Merge branch 'master' into 8356159
>>  - Merge branch 'master' into 8356159
>>  - ins cost fixes, print fixes
>>  - Merge branch 'master' into 8356159
>>  - Reg limits fixed
>>  - Merge branch 'master' into 8356159
>>  - Fixed reg selection
>>  - More indention
>>  - ... and 11 more: https://git.openjdk.org/jdk/compare/66a7f51f...cc3b8ff7
>
> Looks good!

Thanks @feilongjiang @RealFYang

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PR Comment: https://git.openjdk.org/jdk/pull/25252#issuecomment-2939782354