RFR: 8341260: Add Float16 to jdk.incubator.vector [v11]

[Raffaello Giulietti]

On Wed, 30 Oct 2024 05:25:47 GMT, Joe Darcy <darcy at openjdk.org> wrote:

>> Port of Float16 from java.lang in the lworld+fp16 branch to jdk.incubabor.vector.
>
> Joe Darcy has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Respond to review feedback.

src/jdk.incubator.vector/share/classes/jdk/incubator/vector/Float16.java line 431:

> 429:      * @see    java.lang.Float#valueOf(String)
> 430:      */
> 431:     public static Float16 valueOf(String s) throws NumberFormatException {

The current implementation throws when the input is `"NaN"`, with or without an optional sign.

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PR Review Comment: https://git.openjdk.org/jdk/pull/21574#discussion_r1836721773