https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88398
--- Comment #28 from Jiu Fu Guo <guojiufu at gcc dot gnu.org> --- (In reply to Jiu Fu Guo from comment #27) > > 12: 1.2 > > 13: 0.9 > > 14: 0.8 > > 15: 0.7 > > 16: 2.1 > > > > Find one interesting thing: > If using widen reading for the run which > 16 iterations, we can see the > performance is significantly improved(>18%) for xz_r in spec. > This means that the frequency is small for >16, while it still costs a big > part of the runtime. > Oh, Recheck frequency in my test, the frequency is big (99.8%) for >16 iterations.
