RFR: 8318217: RISC-V: C2 VectorizedHashCode [v10]

Yuri Gaevsky duke at openjdk.org
Thu Dec 7 18:19:59 UTC 2023


On Thu, 7 Dec 2023 14:16:33 GMT, Hamlin Li <mli at openjdk.org> wrote:

>> Yuri Gaevsky has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Added two temp registers for loads; all loads in wide loop has been moved to the start of the loop.
>
> It's all in the pr https://github.com/openjdk/jdk/pull/16453, I don't have much other information.
> The major perf opt method of that pr is `do the loads from the buffer more incrementally instead of all in one go`, which I think is the opposite you're doing here. Seems the major difference between this and that pr is, in that pr it has lots of more work to do between the `incremental load`.

Thanks @Hamlin-Li, I see now what you mean, that's interesting.

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PR Comment: https://git.openjdk.org/jdk/pull/16629#issuecomment-1845877661


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