RFR: 8333893: Optimization for StringBuilder append boolean & null [v4]

[Emanuel Peter]

On Wed, 26 Jun 2024 14:38:04 GMT, Claes Redestad <redestad at openjdk.org> wrote:

>> @wenshao @cl4es I think this use-case is quite a valid one, and deserves an extension. I filed:
>> 
>> [JDK-8335113](https://bugs.openjdk.org/browse/JDK-8335113): C2 MergeStores: allow merging of putChar and other larger stores on smaller array elements
>
>> I filed:
>> 
>> [JDK-8335113](https://bugs.openjdk.org/browse/JDK-8335113): C2 MergeStores: allow merging of putChar and other larger stores on smaller array elements
> 
> Great! Should we hold off on this optimization and see if we can avoid the need for `Unsafe` here - or go ahead integrating this PR and leave it to JDK-8335113 to revert any no-longer-needed changes made here?

@cl4es I would wait, to be honest. I'm currently quite busy, but I hope I can do something here in the next 2-3 weeks.

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PR Comment: https://git.openjdk.org/jdk/pull/19626#issuecomment-2191882317