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

[rguenth at gcc dot gnu.org]

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

--- Comment #18 from Richard Biener <rguenth at gcc dot gnu.org> ---
Given there's no cotan or ccotan in libm indeed the solution looks like somehow
exploiting sincos.  Not sure how exactly that can be done.