[llvm] [mlir] [mlir] Implement Mesh's ShardingInterface for Linalg ops (PR #82284)

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RianZeng wrote:

I'd like to ask a question: I'm having a problem doing mesh-spmdization on the matmul operation, and I'm finding that the results of the operation do different things to different meshs. I found that the code causing the problem was the createDestinationPassingStyleInitOperand operation in the MeshShardingInterfaceImpl.cpp file, but I didn't understand its comments. Is there any example of why he did it?

https://github.com/llvm/llvm-project/pull/82284