[vectorIntrinsics] RFR: 8282389: Add new vector operations to count leading and trailing zeros. [v2]

[Swati Sharma]

> Hi All,
> 
> Added support for new vector operations CLZ (count number of leading zeros) and CTZ (could number of trailing zeros) for all the integral vector types(Byte/Short/Integer/Long).
> Added validation and performance tests corresponding the these operations in existing VectorAPI JTREG/JMH suite.
> 
> Kindly review and share your feedback.
> 
> Thanks and Regards,
> Swati Sharma
> Intel

Swati Sharma has updated the pull request incrementally with one additional commit since the last revision:

  8282389: Review comments resolved.

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

Changes:
  - all: https://git.openjdk.java.net/panama-vector/pull/176/files
  - new: https://git.openjdk.java.net/panama-vector/pull/176/files/eb53db79..00b12473

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=panama-vector&pr=176&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=panama-vector&pr=176&range=00-01

  Stats: 680 lines in 70 files changed: 13 ins; 38 del; 629 mod
  Patch: https://git.openjdk.java.net/panama-vector/pull/176.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-vector pull/176/head:pull/176

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