Aten ops might not support non-contiguous inputs, this is a problem for fallbacks. #140462
Description
🚀 The feature, motivation and pitch
#140452 is caused by aten._weight_norm_interface_backward not supporting non-contiguous inputs.
adding make_fallback(aten._weight_norm_interface_backward, require_contiguous) to lowerings.py fixed the issue.
But this seems like a broader problem - I don't think we strictly require that all operators support non-contiguous inputs in PyTorch. Comprehensive padding exacerbates this problem significantly.
cc: @shunting314
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Additional context
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