Alexey Starovoytov <[EMAIL PROTECTED]> writes: > Hi, > > The default architecture for GCC SPARC is V7. > What do gcc sparc developers think about changing it to V8PLUS? > > Few things to consider: > - v7 is legacy > . used in old Sun's sun4c systems > . 32-bit only > . no integer mul/div insns > > - first 64-bit SPARC was made in 1995 > . I guess it would be a valid assumption that there are > not so many 32-bit SPARC chips left > > - there is a big performance gap between v7 and v8plus > . I guess no need to explain the importance of 64-bit registers > > > 1st choice (the best): > - change the default for all sparc platforms > > 2nd: > - change the default for Solaris 7+ and linux > > 3rd (100% safe): > - change the default for Solaris 10+ > > Also 64-bit Linux doesn't have to mean 64-bit (v9) gcc compiler, > so at the same time it would be good to change it to v8plus as well. > > All that changes can be done by easily tweaking gcc/config.gcc > by adding with_cpu=v9 > > Alexey.
Debian has been running with V8PLUS as the default since the sarge release cycles started. I.e. years. -- Thanks, Jim http://www.csclub.uwaterloo.ca/~ja2morri/ http://phython.blogspot.com http://open.nit.ca/wiki/?page=jim
