https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80232
--- Comment #5 from vincenzo Innocente <vincenzo.innocente at cern dot ch> --- I confirm that gather is almost twice as fast on Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz w/r/t Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz (used a benchmark version of PR80248 example) so on skylake, knl, (and hopefully on skylake-avx512) is profitable, on Haswell and broardwell is not...