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

[Jatin Bhateja]

On Wed, 11 Sep 2024 08:37:38 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.

src/java.base/share/classes/java/lang/Float16.java line 452:

> 450:      * @see Double#isNaN(double)
> 451:      */
> 452:     @IntrinsicCandidate

Please remove existing comments.
https://github.com/openjdk/valhalla/blob/4504163905925648f3c411754ff186b55e6067ee/src/java.base/share/classes/java/lang/Float16.java#L489

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PR Review Comment: https://git.openjdk.org/valhalla/pull/1239#discussion_r1758258473