RFR: 8363998: Implement Compressed Class Pointers for 32-bit [v5]

[Thomas Stuefe]

On Fri, 1 Aug 2025 19:33:22 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

>> Thomas Stuefe has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 20 commits:
>> 
>>  - Fix some jtreg tests on arm
>>  - fix arm gtests
>>  - fix CompressedKlass* gtests on arm
>>  - Merge master
>>  - get rid of NEEDS_CLASS_SPACE define
>>  - Merge branch 'master' into JDK-8363998-Implement-compressed-class-pointers-for-32-bit-platforms
>>  - Merge branch 'master' into JDK-8363998-Implement-compressed-class-pointers-for-32-bit-platforms
>>  - since to because
>>    
>>    Co-authored-by: Andrew Haley <aph-open at littlepinkcloud.com>
>>  - Remove stray include
>>  - Update src/hotspot/share/oops/compressedKlass.cpp
>>    
>>    Co-authored-by: ExE Boss <3889017+ExE-Boss at users.noreply.github.com>
>>  - ... and 10 more: https://git.openjdk.org/jdk/compare/559795b0...e4a0f42f
>
> Yes, this is better without NEEDS_CLASS_SPACE. Thanks.

Thanks @coleenp ! May I have a second approval, please?

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PR Comment: https://git.openjdk.org/jdk/pull/26491#issuecomment-3146247662