RFR: 8309660: C2: failed: XMM register should be 0-15 (UseKNLSetting and ConvF2HF)

[Emanuel Peter]

On Wed, 21 Jun 2023 23:41:58 GMT, Sandhya Viswanathan <sviswanathan at openjdk.org> wrote:

>> @eme64 Yes that was my mistake, that node requires AVX512VL so `vlRegF` and `regF` are the same.
>> 
>>> Is there a way to stress-test the registers?
>> 
>> Can we randomise the allocated register during register allocation?
>> 
>> Thanks.
>
>> @merykitty Yes, randomization would be great. I don't know much about the register allocator, so feel free to do something like that if you want and have time ;)
>> 
>> @sviswa7 Is there something you want me to change still?
> 
> No additional changes from my side.

Thanks @sviswa7 for the help with the patch! Thanks @jatin-bhateja for the review!

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PR Comment: https://git.openjdk.org/jdk/pull/14379#issuecomment-1617468870