[Mlir-commits] [mlir] [MLIR][Vector] Add support for distributing masked writes (PR #71482)

[Lei Zhang]

antiagainst wrote:

Actually given we are only handling 1-D distribution in transfer write at the moment, and the fact we are [compressing unused dims when `inferTransferOpMaskType`](https://github.com/llvm/llvm-project/blob/main/mlir/lib/Dialect/Vector/IR/VectorOps.cpp#L3758-L3773), effectively that guarantees we have the same shape as the vector type? I'm a bit confused now; better to get @dcaballe to take another look.

We can enable support step-by-step. The current impl is fine if we additionally check the transfer write has an identity map I think. 

https://github.com/llvm/llvm-project/pull/71482