ArrayCopyNode is not used only for arraycopy() but also for clone() or copyOf() so should be rename to something less confusing. Code in parsing, macro expansion, IGVN, EA that deal with ArrayCopyNode likely needs to be cleaned up/renamed.
Came up here:
https://github.com/openjdk/jdk/pull/27604#issuecomment-3397954861
Came up here:
https://github.com/openjdk/jdk/pull/27604#issuecomment-3397954861