RFR: 8367292: VectorAPI: Optimize VectorMask.fromLong/toLong() for SVE [v3]

[Xiaohong Gong]

On Thu, 30 Oct 2025 07:19:50 GMT, Emanuel Peter <epeter at openjdk.org> wrote:

>> Hi @eme64 , I updated a commit which mainly changes the comments. The function name `mask_op_prefers_predicate` remains unchanged. After giving it careful thought overnight, I believe this name is more accurate. I’m sorry if my earlier explanation caused any confusion. Would you mind checking whether it's fine to you? Thanks!
>
> Nice, it looks much better now, thanks for the updates :)

Thanks for your help on reviewing this part @eme64  @erifan !

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PR Review Comment: https://git.openjdk.org/jdk/pull/27481#discussion_r2479914775