[lworld+fp16] RFR: 8339473: Add support for FP16 isFinite, isInfinite and isNaN [v4]

[Joe Darcy]

On Mon, 23 Sep 2024 16:53:12 GMT, Bhavana Kilambi <bkilambi at openjdk.org> wrote:

>> This patch adds intrinsic support for FP16 isNaN, isFinite and isInfinite methods and also adds aarch64 backend for these intrinsics.
>> 
>> Tested all FP16 related tests successfully on aarch64.
>
> Bhavana Kilambi has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Add more regression tests for FP16 isFinite, isInfinite, isNaN

Marked as reviewed by darcy (Committer).

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PR Review: https://git.openjdk.org/valhalla/pull/1239#pullrequestreview-2323406177