Exploring Opportunities to Speed Up Vector API Performance on AArch64

[Chiranmoy.Bhattacharya at fujitsu.com]

On 11/3/25 06:14, Xiaohong.Gong at nvidia.com wrote:

> The API "VectorMask.fromLong()" is not supported by HotSpot on AArch64 if the platform lacks the SVE2's bitperm CPU feature, which significantly impacts performance.
> If possible, could you please test this case on a CPU that supports SVE2? Thanks!

On 10/31/25 16:40, Paul.Sandoz at oracle.com wrote:

> If so you could verify the code gen from this PR. Instead of benchmarks the PR provides IR tests which asserts that C2 generates the correct IR nodes.

 Sure, we will test the performance and code generated on Graviton4 which supports SVE2.

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Chiranmoy
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