RFR: 8302814: Delete unused CountLoopEnd instruct with CmpX [v3]

[SUN Guoyun]

On Thu, 23 Feb 2023 18:39:39 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

>> SUN Guoyun has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   8302814: Delete unused CountLoopEnd instruct with CmpX
>
> I am taking back my next comment because I see this test fails in other PRs:
> 
>>May be that is why next test failed in your GHA testing:
>>compiler/vectorization/runner/LoopRangeStrideTest.java

Thanks @vnkozlov @feilongjiang for review.

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PR: https://git.openjdk.org/jdk/pull/12648