RFR: 8334724: C2: remove PhaseIdealLoop::cast_incr_before_loop() [v2]

[Roland Westrelin]

On Thu, 22 Aug 2024 16:23:42 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

> I am not comfortable with big regression on MacOSX aarch64 even if you can't reproduce it locally. We need to rerun that testing to make sure it is random as you said.

Christian ran performance testing again (thanks Christian!) and there was no regression this time.

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PR Comment: https://git.openjdk.org/jdk/pull/19831#issuecomment-2314683726