[vectorIntrinsics+compress] RFR: 8274837: Intel backend support for compress VectorAPI [v2]

[Joshua Zhu]

On Thu, 7 Oct 2021 10:07:45 GMT, Joshua Zhu <jzhu at openjdk.org> wrote:

>> src/hotspot/cpu/x86/x86.ad line 1818:
>> 
>>> 1816:         return false;
>>> 1817:       }
>>> 1818:       if (size_in_bits < 512 && !VM_Version::supports_avx512vl()) {
>> 
>> It would be better to add a separate case for Op_CompressV instead of adding it as a fallthrough to gather/scatter.
>
> Done.

Done

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PR: https://git.openjdk.java.net/panama-vector/pull/144