[jdk18] RFR: 8278267: ARM32: several vector test failures for ASHR [v3]

[Hao Sun]

On Wed, 5 Jan 2022 01:17:30 GMT, Dean Long <dlong at openjdk.org> wrote:

>> Yes. AArch64 works in the same way.
>> 
>> Agree with you. Performance benefit would be obtained if we can reuse the same negated value.
>> 
>> We may want to prepare another patch to enhance right shifts for aarch64(using is_var_shift() and considering your proposed two solutions).
>
> A separate RFE for that sounds good to me.  Please file one.

I'd like to reuse this open JBS issue. See https://bugs.openjdk.java.net/browse/JDK-8265263 . And I will work on it soon.

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PR: https://git.openjdk.java.net/jdk18/pull/41