https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70637
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Arthur O'Dwyer from comment #1) > Confirmed. I ran into the same issue with a unit test that was trying to > test whether a given constructor was `explicit`. That is PR 97220 which looks like a different issue from the testcase in comment #0 though.