On Sat, May 16, 2015 at 1:07 PM, Jason Ekstrand <ja...@jlekstrand.net> wrote: > I found a variety of places where the user was doing, for instance, 2 > muls and 4 adds where the result of each mul is used twice. The > result is 6 instructions instead of just the 4 mad's. It's entirely > possible that, thanks to latancies, the 6 would actually be better, > but that's why I did it that way.
So there's probably a threshold. Certainly one multiply used by six adds is over that threshold. I'll do some experiments. _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
