[vectorIntrinsics] RFR: Merge panama-vector:master [v2]

[Paul Sandoz]

On Fri, 20 Nov 2020 06:25:53 GMT, Ningsheng Jian <njian at openjdk.org> wrote:

>> I think JDK-8253623 now has a proper fix in openjdk/jdk: https://github.com/openjdk/jdk/pull/853, which is included in this merge. So we don't need the workaround code from JDK-8253623.
>
>> @nsjian I have almost certainly got the aarch64 changes wrong to that file which tests instructions for a debug build. Can you help with this? We can update the PR or we can integrate this PR as is, then follow up with a new PR with specific changes.
> 
> @PaulSandoz Thanks for the work! I have fixed the aarch64 merge in https://github.com/PaulSandoz/panama-vector/pull/1

@nsjian many thanks, well spotted on JDK-8253623

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PR: https://git.openjdk.java.net/panama-vector/pull/25