On Mon, 2014-03-24 at 22:27 +0100, Loic Dachary wrote: > > On 23/03/2014 23:34, Laurent GUERBY wrote: > > http://gcc.gnu.org/onlinedocs/gcc-4.8.2/gcc/i386-and-x86-64-Options.html#i386-and-x86-64-Options > > > > So unless you want to run your code a very very old x86 32 bit processor > > "-msse" shouldn't be an issue. "-msse2" is similar. > > This is good to know :) Should I be worried about unintended side effects of > -msse4.2 -mssse3 -msse4.1 or -mpclmul ? These are the flags that gf-complete > are using, specifically.
Hi, SSE4.2 will be available only in more recent processors as documented on the page above. If your library already is dynamically checking for processor feature I would advise to be conservative in your -m flags, ie using what debian would use for maximum x86 portability. Sincerely, Laurent -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
