[Bug c++/94592] [10 Regression] ICE in non-type template parameter with constexpr constructor

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94592

--- Comment #7 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Another problematical testcase:

struct A {
    int i;
    constexpr A(int n) : i(n) {}
};

template <A a> struct B { int i; constexpr B() : i(a.i) { } };

template<typename> void bar () {
    B<{1}> var;
}

void fu() {
    bar<int>();
}