RFR: 8351623: VectorAPI: Add SVE implementation of subword gather load operation

[Xiaohong Gong]

On Thu, 17 Jul 2025 08:59:08 GMT, Fei Gao <fgao at openjdk.org> wrote:

> I like this idea! The first one looks better, in which `concate` would provide lower-level and more fine-grained semantics, allowing us to define fewer IR node types while supporting more scenarios.

Yes, I agree with you. I'm now working on refactoring the IR based on the first idea. I will update the patch as soon as possible. Thanks for your valuable suggestion!

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PR Comment: https://git.openjdk.org/jdk/pull/26236#issuecomment-3083249910