https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115078
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Raul Tambre from comment #1) > Seems like a duplicated of PR90170 No that is unrelated. Yes the ICE is in unify for both of them but the issues are different. unify is trying to unify the template arguments and there unifiction fails for different reasons in both of these cases.