https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120099
--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> --- DCE removes this: Eliminating unnecessary statements: Deleting : _gfortran_f2c_specific__conjg_4 (&cmplx.0, &C.4660); This might be a front-end issue though.