RFR: 8348868: AArch64: Add backend support for SelectFromTwoVector

[Bhavana Kilambi]

On Thu, 27 Feb 2025 02:04:24 GMT, Xiaohong Gong <xgong at openjdk.org> wrote:

>> Thank you for your inputs. I'll look into this.
>
> Hi @Bhavana-Kilambi , I'v created a new PR https://github.com/openjdk/jdk/pull/23790 to implement the `VectorRearrange` for small lane count vector types like `2D`. I think the implementation is quite same with what we discussed here.  Any feedback please let me know. Thanks!

@XiaohongGong thank you! I will check it out. Apologies for being so slow in responding (got pulled into something else). I will update this PR with my latest patch soon. Thanks!

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PR Review Comment: https://git.openjdk.org/jdk/pull/23570#discussion_r1977121908