On Tue, Sep 30, 2014 at 11:18:39AM -0500, Bill Schmidt wrote: > > I meant generating a sequence that just "falls out" as you want it after > > optimisation. E.g. lvsr;vnot;vand(splat8(31));vperm can have the vand > > absorbed by the vperm. But that splat is nasty when not optimised away :-( > > Especially since splat8(31) requires vsub(splat8(15),splat8(-16))...
vspltisb vT,-5 ; vsrb vD,vT,vT # :-) > To get something that is correct with and without feeding a vperm and > actually performs well just ain't happening here... Yeah. Segher
