RFR: 8324649: Shenandoah: refactor implementation of free set [v30]

[Kelvin Nilsen]

On Fri, 1 Mar 2024 18:00:58 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> Kelvin Nilsen has updated the pull request incrementally with three additional commits since the last revision:
>> 
>>  - Move comments that describe functions into header file
>>    
>>    Also, remove redundant comments from the .cpp and inline-hpp files.
>>  - Reduce strength of bit manipulation operations
>>    
>>    Replace /, %, and * with >>, &, <<.
>>  - Use existing macros for bit twiddling
>
> src/hotspot/share/gc/shenandoah/shenandoahFullGC.cpp line 1089:
> 
>> 1087:     heap->heap_region_iterate(&post_compact);
>> 1088:     heap->set_used(post_compact.get_live());
>> 1089: 
> 
> Is this change necessary?

Sorry.  Reverted.

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PR Review Comment: https://git.openjdk.org/jdk/pull/17561#discussion_r1523725007