[Mlir-commits] [mlir] [mlir][tosa] Add new block-scaled tensor type and support for MXFP CAST (PR #203583)

[Sayan Saha]

================

----------------
sahas3 wrote:

nit
```suggestion
          castOp, "avoid cancelling casts that should be lossy");
```

https://github.com/llvm/llvm-project/pull/203583