RFR: 8316592: RISC-V: implement poly1305 intrinsic [v9]

[Hamlin Li]

On Tue, 14 Nov 2023 15:17:30 GMT, ArsenyBochkarev <duke at openjdk.org> wrote:

>> Ohh, it looks like I completely missed the `U_1HI` too, sorry. Let's do a two-step reduce then
>
> Done.

Thanks for updating.


> If the above issue is not a false one, and the implemention was tested with existing jdk test suite, then I'm afraid we need to add more test to catch this issue.

As we talked above, seems current test did not catch this overlow issue? Could you try to expand the current tests to catch this overflow issue?

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PR Review Comment: https://git.openjdk.org/jdk/pull/16417#discussion_r1392861687