[Mesa-dev] i965: Vector splitting of outputs

[Eric Anholt]

Here's a little series I wrote yesterday while tracking down why some
silly MOVs were generated in a microbenchmark.  As usual with
optimization, the thing I was trying to work on (not present in this
series) ended up requiring a bunch of other work to prevent regressions.

Well, the first patch is an old one not from this series that still hadn't
seen review, but I'd love to get it landed.