RFR: 8355585: Aarch64: Add aarch64 backend for Float16 vector operations [v2]

[Bhavana Kilambi]

On Wed, 14 May 2025 00:59:44 GMT, Hao Sun <haosun at openjdk.org> wrote:

>> Bhavana Kilambi has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Address review comments
>
> src/hotspot/cpu/aarch64/aarch64_vector_ad.m4 line 553:
> 
>> 551: 
>> 552: // vector add - predicated
>> 553: BINARY_OP_PREDICATE(vaddB,  AddVB,  sve_add,  B)
> 
> stylistic nit: remove the extra spaces.
> 
> In the initial commit, this extra space is added due to `vaddHF`. However, in the latest commit the predicated Float16 rules are removed.

Good catch! I'll update a PS soon. Thanks!

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PR Review Comment: https://git.openjdk.org/jdk/pull/25096#discussion_r2088333521