On Fri, 18 Oct 2024 17:47:00 GMT, Dan Heidinga <heidi...@openjdk.org> wrote:
>> This is correct for the LMF, but I think we are using weak hidden classes in >> string concatenation. > > I just confirmed - the `InlineHiddenClassStrategy` in > j.l.i.StringConcatFactory uses weak hidden classes. It looks like there are > two possible strategies though, and the InlineHiddenClassStrategy is only > used if the MH strategy fails (more parameters than the high arity threshold) Currently the high arity threshold is 0, meaning weak hidden classes are always used. ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/21143#discussion_r1807029898