[vectorIntrinsics+fp16] RFR: Conversion routines for FP16 from jdk mainline

[Jatin Bhateja]

On Fri, 30 Sep 2022 11:57:04 GMT, Swati Sharma <duke at openjdk.org> wrote:

> Hi All,
> 
> The patch contains conversion routines for FP16 from jdk mainline.
> -	This is an interim solution till a full blown merge is done from mainline to vectorIntrinsics and from vectorIntrinsics to vectorIntrinsics+fp16.
> 
> Please review and provide your feedback.
> 
> Swati

Please just borrow the two needed routines float2Float16 and float16Tofloat needed for validation till we do a full blown merge from mainline.

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PR: https://git.openjdk.org/panama-vector/pull/206