nir: Add blend lowering pass
Cleaned up, fixed up, and ported from Panfrost. Its' the last patch here that's of interest, the prereqs are being landed separately, sorry for the noise.
Cc @kusma who expressed interest for zink+lavapipe.
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Cleaned up, fixed up, and ported from Panfrost. Its' the last patch here that's of interest, the prereqs are being landed separately, sorry for the noise.
Cc @kusma who expressed interest for zink+lavapipe.