[lworld+fp16] RFR: 8330021: AArch64: Add backend support for FP16 add operation [v4]

[Jatin Bhateja]

On Thu, 4 Jul 2024 15:46:05 GMT, Bhavana Kilambi <bkilambi at openjdk.org> wrote:

>> This commit [1] adds initial support for FP16 operations and adds backend support for FP16 add operation for X86. This task adds backend support for scalar and vector FP16 add operation on aarch64.
>> 
>> [1] https://github.com/openjdk/valhalla/commit/f03fb4e4ee4d59ed692d0c26ddce260511f544e7#diff-a799ce8da7f3062bb3699beb65aae504840c649942032e325c2a50f88a2869ad
>
> Bhavana Kilambi has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains five commits:
> 
>  - Merge branch 'lworld+fp16'
>  - Remove couple of IR testcases + add --enable-preview flag to tests
>  - Merge branch 'lworld+fp16'
>  - Add a missing return statement in the ad file
>  - 8330021: AArch64: Add backend support for FP16 add operation
>    
>    This commit [1] adds initial support for FP16 operations and adds
>    backend support for FP16 add operation for X86. This task adds backend
>    support for scalar and vector FP16 add operation on aarch64.
>    
>    [1] https://github.com/openjdk/valhalla/commit/f03fb4e4ee4d59ed692d0c26ddce260511f544e7#diff-a799ce8da7f3062bb3699beb65aae504840c649942032e325c2a50f88a2869ad

Non target specific part looks ok to me.

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PR Comment: https://git.openjdk.org/valhalla/pull/1096#issuecomment-2210880462