Multithreshold operator FINN-ONNX execution error after 1D scalar add operator is absorbed into it.

[shashwat1198]

The notebook attached with this bug report describes an error scenario of the multithreshold operator (after applying the AbsorbAddIntoMultithreshold transformation) during finn-onnx graph execution:

Error operator : Multithreshold.

Error description : Getting shape mismatch error during execution. Attached image below. It occurs when an 1D scalar add operator is merged with the proceeding multithresholding operator and executed.

Error resolution : The input vector 'v' shape needs to be reversed for this operation to correctly work during execution.

Notebook executed with FINN v0.9 along with the intermediate ONNX files are included in the attached zip folder :
Debug.zip