RadeonSI Got Another Optimization After The 13.0 Branching

A short time after Mesa 13.0 was branched in Git yesterday, well known AMD open-source developer Marek Olšák was landing new work in master.

The first post-13.0 change he did to catch our attention was radeonsi: eliminate trivial constant VS outputs. The shader-db improvements are quite interesting for the affect the patch has on trimming up the shaders for some of the games. In particular, this should provide much help to DirectX 9 eON game ports by Virtual Programming like Witcher 2.

There's also been a number of other commits to Mesa Git post-13.0 branching, including the change to enable GBM by default.