RFR: JDK-8318485: Narrow klass shift should be zero if encoding range extends to 0x1_0000_0000 [v2]

[Thomas Stuefe]

On Fri, 20 Oct 2023 23:09:33 GMT, Calvin Cheung <ccheung at openjdk.org> wrote:

>> Thomas Stuefe has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   feedback calvin
>
> Thanks for fixing this. I've tried your patch on the CompressedClassPointers.java test. It also fixes the issue in [JDK-8317610](https://bugs.openjdk.org/browse/JDK-8317610). Just have a couple of minor comments.

Thanks @calvinccheung . I fixed the output as requested.

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PR Comment: https://git.openjdk.org/jdk/pull/16261#issuecomment-1775052990