<i18n dev> RFR: 8365186: Reduce size of j.t.f.DateTimePrintContext::adjust [v4]

[Roger Riggs]

On Thu, 21 Aug 2025 01:30:52 GMT, Shaojin Wen <swen at openjdk.org> wrote:

>> By adding the JVM startup parameters `-XX:+UnlockDiagnosticVMOptions -XX:+PrintInlining` and analyzing the printed log information, and found that the code size of the j.t.f.DateTimePrintContext::adjust method is 382, which is greater than 325, causing inlining failure.
>> 
>> 
>> @ 7   java.time.format.DateTimePrintContext::adjust (382 bytes)   failed to inline: hot method too big
>> 
>> 
>> By splitting the code into `common/uncommon`, and moving the uncommon code into adjust0, the adjust method is kept small and can be inlined by the C2 optimizer.
>
> Shaojin Wen has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - code style
>  - implNote before param, from @RogerRiggs

Looks fine

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Marked as reviewed by rriggs (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/26633#pullrequestreview-3141789230