Alexander Monakov wrote: > On Wed, Apr 22, 2009 at 06:30:39AM -0700, Ian Lance Taylor wrote: >> Oleg Kravchenko <oleg@xxxxxxxxxx> writes: >> >>> Why gcc say what mmx, sse, sse2 is disabled? >>> >>> $ gcc -march=nocona -mtune=nocona --help=target >> They are disabled because you didn't explicitly request them. >> >> Ian > > Sorry, Ian, but is this behaviour really intended? These extensions are > enabled by gcc/config/i386/i386.c:override_options() for -march=nocona, and if > one uses -fverbose-asm, they are really listed as enabled there. IMHO, in > this situation behaviour of -Q --help=target and -fverbose-asm seems > contradictory and a bit confusing to the user. > Is prescott still preferred as the 32-bit equivalent to 64-bit nocona? I couldn't make out which version is under discussion. There are too many product names partly supported without useful distinction
