RFR: 8372451: C2 SuperWord: "endless loop" assert. Need to implement proper worklist mechanism [v3]

[Emanuel Peter]

On Tue, 2 Dec 2025 08:44:25 GMT, Manuel Hässig <mhaessig at openjdk.org> wrote:

>> Emanuel Peter has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains 11 additional commits since the last revision:
>> 
>>  - Merge branch 'master' into JDK-8372451-too-many-dead-vector-reduction-vtnodes
>>  - Apply suggestions from code review
>>    
>>    Co-authored-by: Christian Hagedorn <christian.hagedorn at oracle.com>
>>  - limit steps of optimize, for Manuel
>>  - Merge branch 'master' into JDK-8372451-too-many-dead-vector-reduction-vtnodes
>>  - rm old documentation
>>  - git move to new test
>>  - streamline
>>  - refactor and verify
>>  - unique worklist
>>  - wip solution
>>  - ... and 1 more: https://git.openjdk.org/jdk/compare/195c2f9b...54881ff4
>
> Marked as reviewed by mhaessig (Committer).

@mhaessig @chhagedorn Thanks for the reviews and suggestions!

-------------

PR Comment: https://git.openjdk.org/jdk/pull/28512#issuecomment-3601959763