http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Prerelease samples shouldn't count, people using those just can avoid using -march=haswell and use -march=ivybridge -mavx2 or similar instead. Can anyone from Intel verify if all released Haswell CPUs have BMI2 (and if there aren't plans to ship Haswell CPUs without BMI2)?
