https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101098
--- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> --- The ICE does not happen with -std=c++20.
jason at gcc dot gnu.org via Gcc-bugs Mon, 21 Jun 2021 11:04:11 -0700
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101098
--- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> --- The ICE does not happen with -std=c++20.