RFR: 8313905: Checked_cast assert in CDS compare_by_loader [v2]

[Coleen Phillimore]

On Wed, 9 Aug 2023 20:55:28 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

>> Fix a checked_cast<> assert caused by changes to CDS code, but not using address calculations for comparison operators for class loaders or InstanceKlass pointers.
>> Tested with tier1-4 on linux-x64-debug and windows-x64-debug.
>
> Coleen Phillimore has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Ha, didn't need the casts after all.

Thanks Dean and Ioi.

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PR Comment: https://git.openjdk.org/jdk/pull/15208#issuecomment-1673440390