RFR: 8324775: C2 SuperWord: refactor visited sets [v2]

[Emanuel Peter]

On Sat, 27 Jan 2024 20:24:44 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

>> Emanuel Peter has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   comment improvement by Vladimir
>
> Good.

Thanks @vnkozlov @chhagedorn for the reviews!

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PR Comment: https://git.openjdk.org/jdk/pull/17594#issuecomment-1914218190