RFR: 8314748: 1-10% regressions on Crypto micros

[Andrew Dinn]

On Fri, 25 Aug 2023 09:50:25 GMT, Andrew Haley <aph at openjdk.org> wrote:

> Performance improvement. This also reduces the delta between mainline head and the backportts in 11u and 8u.

Yes, it is the elided rscratch (r15) argument to the `evmovdquq` call at stubGenerator_x86_64_aes.cpp:2134 that is causing the problem.

Ah, I see this has already been fixed by JDK-8315445.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/15427#issuecomment-1701119996
PR Comment: https://git.openjdk.org/jdk/pull/15427#issuecomment-1701125678