https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79311
--- Comment #2 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
The ICE disappears if I comment the two lines
final:: tens_signature_dtor !dtor
but not the line
final:: tens_header_dtor !dtor
`GCC/5.4.0 bug
