RFR: 8275202: C2: optimize out more redundant conditions

Fri Dec 8 14:56:20 UTC 2023

On Tue, 28 Nov 2023 14:30:09 GMT, Roberto Castañeda Lozano <rcastanedalo at openjdk.org> wrote:

> Thanks, I have not, will run some Renaissance benchmarks and report back.

Here are results from running a few Renaissance benchmarks on x64 and aarch64 (lower is better):

[score-baseline-vs-JDK-8275202-normalized-to-baseline.pdf](https://github.com/openjdk/jdk/files/13615435/score-baseline-vs-JDK-8275202-normalized-to-baseline.pdf)

To summarize, there seems to be a slight improvement on ScalaKmeans (x64 and aarch64) and a slight regression on Mnemonics/ParMnemonics (x64), the remaining differences are probably in the noise.

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PR Comment: https://git.openjdk.org/jdk/pull/14586#issuecomment-1847322407