Apple hasn't even documented their matrix extension, apparently thinking that people shouldn't compile against them directly but instead use their accelerate fr

Apple hasn't even documented their matrix extension, apparently thinking that people shouldn't compile against them directly but instead use their accelerate framework. Further, they use their private llvm branch and haven't pushed the pipeline description tables for AFAIK any of their arm chips to upstream llvm. So while I agree it would be interesting, I wouldn't hold my breath.