[Mlir-commits] [mlir] [mlir][tensor] Fold pack and unpack of empty input tensor (PR #92247)

[lorenzo chelini]

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@@ -93,12 +93,76 @@ struct FoldEmptyTensorWithExtractSliceOp
   bool foldSingleUseOnly = false;
 };
 
+/// tensor.empty does not define any tensor contents, so an unpadded pack
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chelini wrote:

right, I see. I think in this case we can "strength reduce" to pad but not in this PR.

https://github.com/llvm/llvm-project/pull/92247