pytorch

09959299 - Improve legacy QuantizedLinear functions to reduce overhead (#29773)

Improve legacy QuantizedLinear functions to reduce overhead (#29773) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/29773 Improve legacy QuantizedLinear functions to reduce overhead. Separate from the stack of D18381988. Test Plan: buck test mode/dev-nosan //caffe2/test:jit -- "quant" Reviewed By: lly-zero-one Differential Revision: D18494988 fbshipit-source-id: 5627d7e8b0b7a750852eead9e28c5a9b3fa70559