RFR: JDK-8302736: Major performance regression in Math.log on aarch64

Andrew Haley aph at openjdk.org
Wed May 17 10:07:49 UTC 2023


On Mon, 15 May 2023 14:04:00 GMT, Tobias Holenstein <tholenstein at openjdk.org> wrote:

> > Maybe we should simply disable the intrinsic.
> 
> I am not sure I understand what you mean with disabling the intrinsics. Do you mean in general or to fix `JDK-8302736`?

OK, so there's a slight advantage to the intrinsics, somewhere between 5-40%. I guess that's worth having, as long as we can tolerate the additional maintenance.

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PR Comment: https://git.openjdk.org/jdk/pull/13606#issuecomment-1551109722


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