[jdk26] RFR: 8354282: C2: more crashes in compiled code because of dependency on removed range check CastIIs [v2]

[Christian Hagedorn]

On Mon, 5 Jan 2026 09:34:24 GMT, Roland Westrelin <roland at openjdk.org> wrote:

>> Hi all,
>> 
>> This pull request contains a backport of commit [00068a80](https://github.com/openjdk/jdk/commit/00068a80304a809297d0df8698850861e9a1c5e9) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.
>> 
>> The commit being backported was authored by Roland Westrelin on 10 Dec 2025 and was reviewed by Christian Hagedorn, Quan Anh Mai, Galder Zamarreño and Emanuel Peter.
>> 
>> Thanks!
>
> Roland Westrelin 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 two additional commits since the last revision:
> 
>  - Merge branch 'jdk26' into backport-rwestrel-00068a80-jdk26
>  - Backport 00068a80304a809297d0df8698850861e9a1c5e9

Looks good! I submitted some testing which passed.

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Marked as reviewed by chagedorn (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/28892#pullrequestreview-3627129917