RFR: 8353290: C2: Refactor PhaseIdealLoop::is_counted_loop() [v3]

[Christian Hagedorn]

On Mon, 16 Jun 2025 17:33:55 GMT, Kangcheng Xu <kxu at openjdk.org> wrote:

>> Was out last week but I'm seeing your last commit mentions WIP. Let me know when it's ready to have another look again :-)
>
> Resolved conflict with [JDK-8357951](https://bugs.openjdk.org/browse/JDK-8357951). @chhagedorn I'd appreciate a re-review. Thank you so much!

Thanks @tabjy for coming back with an update and pinging me again! Sorry, I completely missed it the first time. I will be on vacation starting tomorrow for two weeks but I'm happy to take another look when I'm back :-)

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PR Comment: https://git.openjdk.org/jdk/pull/24458#issuecomment-2988648724