RFR: 8309129: AArch64: guarantee(T != T2S) failed: "incorrect arrangement" after JDK-8307795 [v5]

[Xiaohong Gong]

On Mon, 5 Jun 2023 06:52:21 GMT, Chang Peng <duke at openjdk.org> wrote:

>> This patch fixes the issue introduced by JDK-8307795. Since addv[1] cannot support "T2S" SIMD arrangement, we should use addp[2] in this case.
>> 
>> TEST passed on AArch64:
>> hotspot:compiler/vectorapi, jdk:jdk/incubator/vector, tier1-3
>> 
>> [1]: https://developer.arm.com/documentation/ddi0596/2020-12/SIMD-FP-Instructions/ADDV--Add-across-Vector-
>> [2]: https://developer.arm.com/documentation/ddi0596/2020-12/SIMD-FP-Instructions/ADDP--vector---Add-Pairwise--vector--
>
> Chang Peng has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Update test case

LGTM!

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Marked as reviewed by xgong (Committer).

PR Review: https://git.openjdk.org/jdk/pull/14245#pullrequestreview-1462117398