RFR: 8333893: Optimization for StringBuilder append boolean & null [v12]

[Shaojin Wen]

On Thu, 20 Jun 2024 09:54:37 GMT, Claes Redestad <redestad at openjdk.org> wrote:

>> Shaojin Wen has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Utf16 case remove `append first utf16 char`
>
> src/java.base/share/classes/java/lang/StringLatin1.java line 832:
> 
>> 830:         // Don't use the putChar method, Its instrinsic will cause C2 unable to combining values into larger stores.
>> 831:         long address  = Unsafe.ARRAY_BYTE_BASE_OFFSET + index;
>> 832:         Unsafe UNSAFE = Unsafe.getUnsafe();
> 
> Perhaps better to put in a `private static final` field

already using `private static final UNSAFE`

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/19626#discussion_r1650033405