[Bug c++/126828] [16/17 Regression] internal compiler error related to the Eigen library

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126828

--- Comment #2 from Drea Pinski <pinskia at gcc dot gnu.org> ---
Created attachment 65322
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=65322&action=edit
Non reduced testcase