RFR: 8341013: Optimize x86/aarch64 MD5 intrinsics by reducing data dependency

[Oli Gillespie]

On Thu, 26 Sep 2024 16:18:34 GMT, Andrew Haley <aph at openjdk.org> wrote:

> Given that there is so little advantage, almost down in the noise, you should do that.

Just to check we're talking about the same results - the improvement shown in my aarch64 run is the same (actually a littler more) as the x86 run; around 5.6%, and very high confidence (+-0.1%).

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PR Comment: https://git.openjdk.org/jdk/pull/21203#issuecomment-2377416892