RFR: 8342095: Add autovectorizer support for subword vector casts [v15]

[Emanuel Peter]

On Wed, 28 Jan 2026 04:27:31 GMT, Jasmine Karthikeyan <jkarthikeyan at openjdk.org> wrote:

>> @jaskarth Something is going a bit strange with my testing script. Could you merge with latest master, maybe that helps?
>
> Thanks for the ping @eme64, I've merged from master.

@jaskarth Thanks, now the script succeeded and tests are launched :)

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PR Comment: https://git.openjdk.org/jdk/pull/23413#issuecomment-3809422234