RFR: 8363998: Implement Compressed Class Pointers for 32-bit [v3]

[Thomas Stuefe]

On Mon, 28 Jul 2025 14:14:27 GMT, Roman Kennke <rkennke at openjdk.org> wrote:

>> Thomas Stuefe has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Remove stray include
>
> src/hotspot/cpu/arm/c1_FrameMap_arm.hpp line 99:
> 
>> 97:   static int adjust_reg_range(int range) {
>> 98:     return range;
>> 99:   }
> 
> This looks to me like the whole method could be removed?

Possibly; but I wanted to keep the change to a minimum. There will be a larger cleanup coming when UseCompressedClassPointers gets removed.

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PR Review Comment: https://git.openjdk.org/jdk/pull/26491#discussion_r2236731141