[GitHub] [tvm] anijain2305 edited a comment on pull request #7613: [Relay][QNN] Simulated Quantize and Dequantize

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anijain2305 edited a comment on pull request #7613:
URL: https://github.com/apache/tvm/pull/7613#issuecomment-793497261


   I see, yeah that should be ok. 
   
   Maybe it's not relevant to this PR but there is a slight catch about `requantize`. I was hoping that the `requantize` could also be represented using the `simulate_q` (or `simualted_requantize` op) where both `in_dtype` and `out_dtype` are integers (while the actual in/out tensors are fp32). The issue representing `requantize` with a sequence of `quantize-dequantize` is that requantize's integer-only computation gives different results compared to the sequence of quantize-dequantize (the deviation grows further for <8 bits). If there was just one op, then we can simulate `requantize` with hopefully more fidelity (should help QAT as well in future).
   
   But I totally understand that it can make design complicated and maybe also difficult to pattern match. Please give it a thought and see if this is helpful in overall design (or this PR in any way). Otherwise, please feel free to ignore.


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