https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114827
--- Comment #3 from Neil Carlson <neil.n.carlson at gmail dot com> --- Those results are with 12.3.0 configured with --enable-valgrind-annotations. I'm building 13.2.0 now with the same to see if more info is generated. (I don't typically use 13.x because it finalization is broken for our code after 12.)