RFR: 8357726: Improve C2 to recognize counted loops with multiple casts in trip counter

[Xiaohong Gong]

On Wed, 4 Jun 2025 09:03:21 GMT, Emanuel Peter <epeter at openjdk.org> wrote:

> @XiaohongGong Let's please delay this until after Thursday, so that this does not go into JDK25 yet, and we have more time to fix it if something goes wrong down the line.

Sure. That makes sense to me.  Thanks! BTW, I'v updated the test according to your comment. So could you please help run all the tests? Thanks again!

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PR Comment: https://git.openjdk.org/jdk/pull/25539#issuecomment-2939250321