https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109556
Patrick Palka <ppalka at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords|needs-bisection, |
|needs-reduction |
--- Comment #5 from Patrick Palka <ppalka at gcc dot gnu.org> ---
template<typename T, auto N>
concept C = (N != 0);
template<auto N, auto M>
struct A { };
template<auto N, C<N> auto M>
void f(A<N, M>);
int main() {
f(A<1, 42>{});
f(A<2, 42>{});
}
Bisection seems unreliable probably due to the use-after-free nature of the
bug, but removing those calls to ggc_free fixes the issue so
r13-377-g3e948d645bc908 is almost certainly the culprit.
