[Bug libfortran/93871] COTAN is slow for complex types

[thenlich at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93871

--- Comment #41 from Thomas Henlich <thenlich at gcc dot gnu.org> ---
One would assume that fast FMA
(https://en.wikipedia.org/wiki/FMA_instruction_set) is or will be available to
the modern Fortran enthusiast, in the year 202x.