[Mlir-commits] [mlir] [MLIR][XeGPU] Sg to Lane distribute convert_layout redistributing broadcasted data (PR #215645)

[Jianhui Li]

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Jianhui-Li wrote:

"The target layout gives the same fragment to every lane of a slot"???
why it is so?

// the lanes past the first `numSlots` are  replicas
depends the slices layout is outer dimension, or inner dimension. also depends on the order attribute which specify which dimension is FCD. Only the unsliced dimension is FCD, then the lanes past numSlots is replicated.  

https://github.com/llvm/llvm-project/pull/215645