RFR: 8370405: C2: mismatched store from MergeStores wrongly scalarized in allocation elimination [v2]

[Emanuel Peter]

On Wed, 29 Oct 2025 17:07:30 GMT, Quan Anh Mai <qamai 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 16 additional commits since the last revision:
>> 
>>  - Merge branch 'master' into JDK-8370405-alloc-elimination-and-MergeStores
>>  - only verify primitive types
>>  - Apply suggestions from code review
>>  - more assert adjustment
>>  - ignore debug flag
>>  - id for tests, and fix up the assert
>>  - pass int for short slot
>>  - another test
>>  - improve test
>>  - wip new IR test
>>  - ... and 6 more: https://git.openjdk.org/jdk/compare/b652ace1...b6e032c2
>
> Marked as reviewed by qamai (Committer).

Thanks for suggesting the fix, I just copied the fix from Valhalla :)

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PR Comment: https://git.openjdk.org/jdk/pull/27997#issuecomment-3462733878