[vectorIntrinsics+fp16] RFR: 8302454: Improve VectorAPI fallback implementation for FP16 operations. [v2]

[Swati Sharma]

> Hi All,
> 
> The patch contains the below changes:
> - Remove redundant Halffloat object creation and rebase existing implementation using Float.float16ToFloat and floatToFloat16 APIs.
> - Enable all the vector API tests for FP16 operations.
> 
> Please review and provide your feedback.
> 
> Thanks,
> Swati

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

  8302454: Resolved review comments.

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

Changes:
  - all: https://git.openjdk.org/panama-vector/pull/211/files
  - new: https://git.openjdk.org/panama-vector/pull/211/files/6f303267..e90ecc89

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=panama-vector&pr=211&range=01
 - incr: https://webrevs.openjdk.org/?repo=panama-vector&pr=211&range=00-01

  Stats: 805 lines in 46 files changed: 454 ins; 80 del; 271 mod
  Patch: https://git.openjdk.org/panama-vector/pull/211.diff
  Fetch: git fetch https://git.openjdk.org/panama-vector pull/211/head:pull/211

PR: https://git.openjdk.org/panama-vector/pull/211