> Surely it would be possible to use -ffixed-* options to reserve all the > altivec registers and get precisely that effect?
Nah, I don't need to be that drastic. The RAID6 code is already in a separate file that can have a specific additional set of compile flags, so I can just enable altivec just for this file and make sure the functions it provides are always called from the proper environment (that is have the enable_kernel_altivec() call etc... be _outside_ of that file). Ben.
