https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64677
--- Comment #2 from Sanjay Patel <spatel at rotateright dot com> --- This is on plain x86-64 with SSE (before the addition of any FMA instructions), so lack of FMA must be accounted for? The answers differ in the last digit / ULP. Is there some standard or golden implementation that will answer which answer is correct?
