https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82349
--- Comment #4 from Marcello Presulli <marc.pres at gmx dot net> --- Thats clear, but why are the 2 terms different each. If so, they should output the same, because what would be the difference between 1.0/denom and 1.0/0 in case of fast-math ?