RFR: 8317572: C2 SuperWord: refactor/improve TraceSuperWord, replace VectorizeDebugOption with TraceAutoVectorization [v4]

[Emanuel Peter]

On Fri, 26 Jan 2024 14:40:15 GMT, Christian Hagedorn <chagedorn at openjdk.org> wrote:

>> Emanuel Peter has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   move code to StringUtils::CommaSeparatedStringIterator
>
> src/hotspot/share/opto/traceAutoVectorizationTag.hpp line 75:
> 
>> 73: }
>> 74: 
>> 75: class TraceAutoVectorizationTagNameIter {
> 
> This class is almost identical to `PhaseNameIter`. Can the code somehow be shared?

I moved both to stringUtils.hpp

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PR Review Comment: https://git.openjdk.org/jdk/pull/17586#discussion_r1467849055