[Bug c++/66962] [concepts] overloaded function causing memory blow-up and ICE

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66962

--- Comment #16 from Jason Merrill <jason at gcc dot gnu.org> ---
(In reply to Jason Merrill from comment #15)
> So, converting A || B to !(!A && !B) will avoid the explosion at the cost of
> limiting subsumption.

Or even !!(A || B).