[vectorIntrinsics+fp16] RFR: 8290204: FP16 initial backend implementation [v6]

[Bhavana Kilambi]

On Fri, 13 Jan 2023 04:05:33 GMT, Smita Kamath <svkamath at openjdk.org> wrote:

>> Initial backend implementation for enabling FP16.
>
> Smita Kamath has updated the pull request incrementally with three additional commits since the last revision:
> 
>  - Correction in HF2D node
>  - typo in D2HF node
>  - Updated cast instructs with new nodes

src/hotspot/share/opto/classes.hpp line 412:

> 410: macro(DivVF)
> 411: macro(DivVD)
> 412: macro(DivVHF)

Hi, in a previous commit, the DIV operation wasn't added in the binary operations list for Halffloats here - https://github.com/openjdk/panama-vector/blob/9113b206b4a32ff65cb76c6003adb3b1b9738712/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/HalffloatVector.java#L789
Although this PR is specifically for backend impl but the backend ISA for "div" operation might not be generated due to this operation not being added to the list of binaryoperations for Halffloat. Is it possible to please add it in this PR?
Thanks

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PR: https://git.openjdk.org/panama-vector/pull/204