RFR: 8345125: Aarch64: Add aarch64 backend for Float16 scalar operations [v2]

[Bhavana Kilambi]

On Tue, 25 Feb 2025 19:45:31 GMT, Bhavana Kilambi <bkilambi at openjdk.org> wrote:

>> This patch adds aarch64 backend for scalar FP16 operations namely - add, subtract, multiply, divide, fma, sqrt, min and max.
>
> Bhavana Kilambi has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Address review comments

Hello, I would not be able to respond to comments until the next couple months or so due to some urgent tasks at work. Until then, I'd move this PR to draft status so that it would not be closed due to lack of activity. Thank you for the review!

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PR Comment: https://git.openjdk.org/jdk/pull/23748#issuecomment-2765729618