quant_fusion jit pass (#24427)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/24427
Added following pass:
- _jit_pass_quant_fusion: Fusion pass that replaces the dequant->conv->quant patterns
to quantized_conv
Test Plan:
python test/test_jit.py
Imported from OSS
Differential Revision: D17001142
fbshipit-source-id: 729a6bf291c5268b24f5716ccadfcfb63e039c0b
