Mesa's Virgl Preparing To Transition To Using NIR Over TGSI

Mesa's Virgl code as part of the Virgil 3D GPU project allows for OpenGL/3D acceleration within QEMU virtual machines with the driver calls then being passed onto the host GPU. Mesa's Virgl code to this stage has relied upon the Gallium3D TGSI intermediate representation while they are working on moving it to the modern and superior NIR...