[vectorIntrinsics] RFR: Improve mask reduction operations on AVX

[Paul Sandoz]

On Tue, 2 Nov 2021 16:22:24 GMT, Mai Đặng Quân Anh <duke at openjdk.java.net> wrote:

> Besides, I found out that C2 fails with `Long128Vector`, even a simple operation of `LONG_128_1.eq(LONG_128_2)`, is this a known behaviour?

I was not aware of that, @jatin-bhateja might know more.

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PR: https://git.openjdk.java.net/panama-vector/pull/158