https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88153
--- Comment #2 from Daniel Fruzynski <bugzi...@poradnik-webmastera.com> --- I checked that godbolt.org uses g++ (GCC-Explorer-Build) 9.0.0 20181110 (experimental). This version does not have such patch merged. Anyway, code compiled with -fmath-errno enabled would benefit from vectorization if it can be done.