https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111655
--- Comment #13 from Alexander Monakov <amonakov at gcc dot gnu.org> --- > Then there is the MULT_EXPR x * x case This is PR 111701. It would be nice to clarify what "nonnegative" means in the contracts of this family of functions, because it's ambiguous for NaNs and negative zeros (x < 0 is false while signbit is set, and x >= 0 is also false for positive NaNs).
