On Fri, 14 Jun 2024 23:39:54 GMT, Sandhya Viswanathan
wrote:
>> Volodymyr Paprotski has updated the pull request incrementally with one
>> additional commit since the last revision:
>>
>> Improve non-intrinsic p256 performance
>
> src/hotspot/share/opto/runtime.cpp line 1417:
>
>> 1415: /
On Fri, 14 Jun 2024 22:01:44 GMT, Volodymyr Paprotski wrote:
>> This fix recovers XDH performance but removes some of the P256 gains
>> (~-8-14%). Still faster, but not as much.
>>
>> The fix is to undo 'int' return type on mult()/square(), which allowed to
>> return partially reduced result (
> This fix recovers XDH performance but removes some of the P256 gains
> (~-8-14%). Still faster, but not as much.
>
> The fix is to undo 'int' return type on mult()/square(), which allowed to
> return partially reduced result (e.g. this avoids extra reductions when
> mult() result is fed into
