[Bug c++/70001] [5 regression] Infinity compilation time

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70001

--- Comment #3 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Actually the nested array is enough to reproduce the issue:

#include <array>
#include <complex>

const int LOG = 17;
const int N = (1 << LOG);

std::array<std::array<std::complex<double>, N>, LOG> F;