[Bug c++/99387] ICE when mixing CNTTP with deduction guides

[ppalka at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99387

--- Comment #3 from Patrick Palka <ppalka at gcc dot gnu.org> ---
Reduced:

template <auto> struct A { };
template <class> struct B { };

template<template <class> class Tmpl, Tmpl V>
void f (A<V>);

int main() {
  A<B<int>{}> x;
  f(x);
}