RFR: 8320500: [vectorapi] RISC-V: Optimize vector math operations with SLEEF [v4]

[Fei Yang]

On Tue, 24 Sep 2024 14:57:48 GMT, Robbin Ehn <rehn at openjdk.org> wrote:

>> Thanks Robbin for helping explaining!
>> 
>> minor correction: v1-v7/v24-v31 = callee saved
>
> Yes, sorry what I meant, updated.

Then why would we put a constraint on the number of supported argument vector registers here (v8-v15 instead of v8-v23)? Could we just support all of them, i.e., v8-v23 to comply with the RISC-V psABI?

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PR Review Comment: https://git.openjdk.org/jdk/pull/21083#discussion_r1773564555