>>>>> "AC" == Amar Cosic <amar.co...@gmail.com> writes:
AC> Couple months ago I tried this AC> http://en.gentoo-wiki.com/wiki/Safe_Cflags/AMD#AMD_FX-8xxx.2F6xxx.2F4xxx_.28Bulldozer.29 Those flags are silly. Specifying -march=bderv1 already enables all of the rest of those -m flags. You will need to use gcc-4.6 or later to have -march=bderv1, otherwise try -march=native and/or -march=amdfam10. Iff you enable the graphite USE flag, you can add: -floop-interchange -floop-strip-mine -floop-block to enable the graphite optimizations. If you do install gcc-4.6.2, try these to confirm what native offers: :; echo | gcc -dM -E - -march=bdver1 | sort >gcc-info-bdver1 :; echo | gcc -dM -E - -march=native | sort >gcc-info-native A diff(1) of those two files should be empty. -JimC -- James Cloos <cl...@jhcloos.com> OpenPGP: 1024D/ED7DAEA6
