[Mlir-commits] [mlir] [mlir][linalg] Add pass to transpose A matrix of matmul op (PR #89075)

[Andrzej Warzyński]

https://github.com/banach-space commented:

LGTM, thanks Cullen!

I suggest that we generalise this a bit and allow 2 variants:
1. `linalg.matmul(A, B)` --> `linalg.transpose(A) + linalg.matmul_tranpose_a(A, B)`
2. `linalg.matmul(A, B)` --> `linalg.transpose(B) + linalg.matmul_tranpose_b(A, B)`

Otherwise this transformation would only be beneficial for platforms lowering `linalg.matmul` to outer-products (e.g. ArmSME). We should keep it more general.

https://github.com/llvm/llvm-project/pull/89075