RFR: 8285040: PPC64 intrinsics for divideUnsigned and remainderUnsigned methods in java.lang.Integer and java.lang.Long [v4]

Thu Apr 21 13:45:25 UTC 2022

On Thu, 21 Apr 2022 07:54:27 GMT, Martin Doerr <mdoerr at openjdk.org> wrote:

> After having it implemented, the performance of the integer nodes was also better, so I have added the 2 nodes back.

My confusion is that why do `UseDivMod` has effect on the performance of `UDivI` and `UModI`, why do they perform better than `DivL` and `ModL` in this regard?

Thanks.

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PR: https://git.openjdk.java.net/jdk/pull/8304