https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109185
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Status|UNCONFIRMED |NEW
Keywords|lto |link-failure
Last reconfirmed| |2023-03-18
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed. Also fails with linking this:
```
template<int &R> struct A { static constexpr int &value = R; };
template<typename = void>
auto S() {
static int s;
return A<s>{};
}
auto &s = decltype(S())::value;
int main(void)
{
return s;
}
```
So a front-end issue. Most likely not marking S<void>::s as being used.
Note instead of `decltype(S())::value`, I do `S().value`; it works.
