Tobias Gysi 78dc1e4978 [mlir][linalg][python] Add shape-only tensor support to OpDSL.
Add an index_dim annotation to specify the shape to loop mapping of shape-only tensors. A shape-only tensor serves is not accessed withing the body of the operation but is required to span the iteration space of certain operations such as pooling.

Differential Revision: https://reviews.llvm.org/D104767
2021-06-24 14:11:15 +00:00
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