https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100147
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- It's obviously safe for self-assignment.
redi at gcc dot gnu.org via Gcc-bugs Mon, 19 Apr 2021 03:12:32 -0700
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100147
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- It's obviously safe for self-assignment.