[jdk24] RFR: 8347554: [BACKOUT] C2: implement optimization for series of Add of unique value

[Christian Hagedorn]

On Mon, 13 Jan 2025 15:12:07 GMT, Christian Hagedorn <chagedorn at openjdk.org> wrote:

> Hi all,
> 
> This pull request contains a backport of commit [062f2dcf](https://github.com/openjdk/jdk/commit/062f2dcfe5b62cc3dd3c292eeebd7a7ac78f849a) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.
> 
> The commit being backported was authored by Christian Hagedorn on 13 Jan 2025 and was reviewed by Tobias Hartmann.
> 
> Thanks!

Thanks Vladimir and Tobias for your reviews!

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PR Comment: https://git.openjdk.org/jdk/pull/23077#issuecomment-2590222775