https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100629
--- Comment #23 from Jonathan Wakely <redi at gcc dot gnu.org> --- OK, the bad mangling happens with -O1 -fdevirtualize and not with -O1 alone.
redi at gcc dot gnu.org via Gcc-bugs Mon, 17 May 2021 14:05:47 -0700
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100629
--- Comment #23 from Jonathan Wakely <redi at gcc dot gnu.org> --- OK, the bad mangling happens with -O1 -fdevirtualize and not with -O1 alone.