Matthias Springer 6596b0dde8 [mlir][tensor] Clean up tensor::DimOp usage ...

* Remove duplicate functions. `tensor::getMixedSize` and `tensor::getMixedSizes` should be used.
* Use `tensor::getMixedSize` instead of `createOrFold<tensor::DimOp>`. This is more efficient. `createOrFold` will create an op an immediately try to fold it. In case of a static dimension size, an attribute can be used directly.

Differential Revision: https://reviews.llvm.org/D153332

2023-06-22 10:56:17 +02:00

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