[quant][pt2e] Add reference representation for quantize_per_channel and dequantize_per_channel (#105783)
Summary:
Implementing reference representation for quantized ops we decided in https://docs.google.com/document/d/17h-OEtD4o_hoVuPqUFsdm5uo7psiNMY8ThN03F9ZZwg/edit#heading=h.ov8z39149wy8
Test Plan:
python test/test_quantization.py TestQuantizePT2E.test_representation_quantize_dequantize_per_channel
Although right now it is not really testing things since there is some problem with dynamo export
Summary:
Test Plan:
Reviewers:
Subscribers:
Tasks:
Tags:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/105783
Approved by: https://github.com/kimishpatel
