https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120795
--- Comment #9 from Sam James <sjames at gcc dot gnu.org> ---
```
int a;
void b();
struct e {
int ab;
int d() { return ab; }
};
struct f {
e g;
auto d() { return g.d(); }
};
template <typename h> struct i : h {
f j;
template <typename ac> int ad(ac) {
unsigned char k = j.d();
a = __builtin_ia32_bzhi_di(1, k);
b();
return a;
}
};
struct l {
void af();
};
template <template <typename> class, typename al> void am(al m) { m(1); }
template <typename> using ar = int;
struct n {
void ap() {
at.af();
am<ar>([&](auto... au) { at.ad(au...); });
}
i<l> at;
};
struct aw {
aw() {
n b;
b.ap();
}
} c;
```
I'll submit that when I get a chance.
