[jdk20] RFR: 8299715: IR test: VectorGatherScatterTest.java fails with SVE randomly

[Xiaohong Gong]

On Tue, 10 Jan 2023 04:11:05 GMT, Quan Anh Mai <qamai at openjdk.org> wrote:

> IIUC the API will generate a check even if the hardware supports the masked operation. I believe this is less efficient, we should fall back to a check and an unmasked operation in the optimistic cases only if the masked operation is not supported.
> 
> Thanks.

Yes, this is an candidate optimization to me. We also planed to some improvement for such checks on SVE/AVX-512. Thanks.

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PR: https://git.openjdk.org/jdk20/pull/90