RFR: 8336831: Optimize StringConcatHelper.simpleConcat [v2]

[Shaojin Wen]

On Fri, 19 Jul 2024 20:18:04 GMT, Chen Liang <liach at openjdk.org> wrote:

>> Shaojin Wen has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   share newArray
>
> src/java.base/share/classes/java/lang/StringConcatHelper.java line 371:
> 
>> 369:             return new String(s1);
>> 370:         }
>> 371:         byte coder = (byte) (s1.coder() | s2.coder());
> 
> Suggestion:
> 
>         int coder = s1.coder() | s2.coder();

Converting coder to int type requires processing when calling new String(byte[], byte)

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PR Review Comment: https://git.openjdk.org/jdk/pull/20253#discussion_r1684964122