[vectorIntrinsics] RFR: 8258072: Add Reinterpret nodes implementation for Arm SVE [v2]

[Wang Huang]

On Wed, 16 Dec 2020 08:07:49 GMT, Xiaohong Gong <xgong at openjdk.org> wrote:

>> Wang Huang has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR.
>
> src/hotspot/cpu/aarch64/aarch64_sve.ad line 344:
> 
>> 342: instruct reinterpret(vReg dst) %{
>> 343:   predicate(UseSVE > 0 && n->as_Vector()->length_in_bytes() >= 16 &&
>> 344:             n->in(1)->bottom_type()->is_vect()->length_in_bytes() >= 16 &&
> 
> This check in line-344 is redundant as the pre and subsequent check can guarantee this.

Sure

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PR: https://git.openjdk.java.net/panama-vector/pull/29