https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77468
--- Comment #28 from PeteVine <tulipawn at gmail dot com> --- Lesson learnt, thanks! If you look at the last -Ofast result (or 1702153-RI-CRAYFAST467), the suspect difference is there (the compiler had been rebuilt from scratch with all the patches), and I even managed to set a record performance with -mtune=thunderx. I'm using an S905 SoC.
