https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67406
--- Comment #2 from vincenzo Innocente <vincenzo.innocente at cern dot ch> --- is there any mechanism to tell gcc to generate the AVX2 clone using fma? I understand it reduces portability still at the moment I have to support mostly Intel platforms. for AMD, gcc suggests to use avx128 so it would anyhow requires a different library to exploit fma4.
