https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90298
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> --- den is a floating point type, so when comparing equal against 0, it will match both 0 and -0. So it is not redundant.