RFR: 8373502: C2 SuperWord: speculative check uses VPointer variable was pinned after speculative check, leading to bad graph [v3]

[Emanuel Peter]

On Wed, 17 Dec 2025 11:43:25 GMT, Tobias Hartmann <thartmann 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 four additional commits since the last revision:
>> 
>>  - Merge branch 'master' into JDK-8373502-SW-VPointer-variables-at-speculative-check
>>  - Update test/hotspot/jtreg/compiler/loopopts/superword/TestAliasingCheckVPointerVariablesNotAvailable.java
>>  - fix up detail
>>  - JDK-8373502
>
> Marked as reviewed by thartmann (Reviewer).

@TobiHartmann @rwestrel Thanks for the reviews!

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PR Comment: https://git.openjdk.org/jdk/pull/28783#issuecomment-3668687984