[vectorIntrinsics] RFR: 8282389: Add new vector operations to count leading and trailing zeros.

[Quan Anh Mai]

On Thu, 3 Mar 2022 11:57:43 GMT, Quan Anh Mai <duke at openjdk.java.net> wrote:

>> Would it not return incorrect value for a=0.
>
> This could be `Integer.numberOfTrailingZeros(a | 0x100);`

And I think what he meant was the calculation of the `numberOfLeadingZeros` below

-------------

PR: https://git.openjdk.java.net/panama-vector/pull/176