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freedreno: a2xx: NIR backend

Jonathan Marek requested to merge flto/mesa:a2xx-nir into master

These patches replace the a2xx TGSI compiler with a NIR compiler.

It also adds several new features:

  • gl_FrontFacing, gl_FragCoord, gl_PointCoord, gl_PointSize
  • control flow (including loops)
  • texture related features (LOD/bias, cubemaps)
  • filling scalar ALU slot when possible
Edited by Jonathan Marek

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