radeonsi: switch enums from TGSI/PIPE to standard ones + a few optimizations
Ignore the first half of commits. They are from !6329 (closed) and this MR depends on it.
This MR is mostly just a cleanup, which switches TGSI and PIPE enums to standard shader enums in Mesa. It starts with the separating commit called "IGNORE...".
There are a few useful optimizations though: !6340 (b56bd54b) , !6340 (b3e140cb) , and !6340 (82a615e4) .
Edited by Marek Olšák