https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97142
--- Comment #8 from Segher Boessenkool <segher at gcc dot gnu.org> --- I don't think we have an instruction for that? But we can inline the code we need instead of doing a library call, which is much faster. (We probably can use FMAs here usefully, btw; maybe even without needing -ffast-math.)
