On Sun, 25 Aug 2024 12:12:42 GMT, Shaojin Wen <d...@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:
>
> Revert "Optimize the construction of MethodType and MethodTypeDesc to
> reduce memory allocation"
>
> This reverts commit 3bed7290f5cb987e86407f698fb0598f19d65628.
src/java.base/share/classes/java/lang/invoke/StringConcatFactory.java line 1169:
> 1167: paramTypes[i] = cl;
> 1168: }
> 1169: return changed ? MethodType.methodType(args.returnType(),
> paramTypes) : args;
Suggestion:
return changed ? MethodType.methodType(args.returnType(),
paramTypes, true) : args;
-------------
PR Review Comment: https://git.openjdk.org/jdk/pull/20675#discussion_r1730375667
