RFR: 8338930: StringConcatFactory hardCoded string concatenation strategy [v11]

[duke]

On Mon, 9 Sep 2024 01:53:01 GMT, Shaojin Wen <swen at openjdk.org> wrote:

>> This is a follow-up to PR #20273, which improves performance when the number of parameters exceeds 20.
>> 
>> When the number of parameters is large, the possibility of reuse will be lower, so we can use the static concat method and write the length and coder directly into the bytecode to solve the performance regression problem.
>
> Shaojin Wen has updated the pull request incrementally with one additional commit since the last revision:
> 
>   suggestion from @cl4es

@wenshao 
Your change (at version 6c69ab3466a1b914ffb1fc020665be92822111bd) is now ready to be sponsored by a Committer.

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PR Comment: https://git.openjdk.org/jdk/pull/20675#issuecomment-2340551628