On Saturday 15 September 2007, Segher Boessenkool wrote: > > > +config TUNE_CELL > > + bool "Optimize for Cell Broadband Engine" > > + depends on PPC64 > > + help > > + Cause the compiler to optimize for the PPE of the Cell Broadband > > + Engine. This will make the code run considerably faster on Cell > > + but somewhat slower on other machines. This option only changes > > + the scheduling of instructions, not the selection of instructions > > + itself, > > It _does_ change instruction selection, which is the main factor > in the slowdown on other machines (and a big part of the speedup > on Cell, too). It doesn't change which insns the compiler is > allowed to use though, which is probably what you wanted to say?
Right, thanks for the correction. Arnd <>< _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev