On Wed, 2006-03-15 at 20:10 -0800, Alexey Starovoytov wrote: > 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
AFAICT, v7's are still in use in embedded platforms. > 1st choice (the best): > - change the default for all sparc platforms This is likely to break toolchains targetting embedded targets. I am almost 100% sure it would break sparc-rtems). > 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 I don't have an opinion on Solaris or Linux. Ralf
