pytorch

421d8f86 - Add a record scope around autograd::engine::evaluate_function (#63619)

Add a record scope around autograd::engine::evaluate_function (#63619) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/63619 Adds a RECORD_FUNCTION with the function that is being valuate as part of backwards execution. This has been useful in picking up some operations in the backwards pass that otherwise would not show up, for example custom cpp functions that use custom C++ code. ghstack-source-id: 137041723 Test Plan: CI benchmark: buck run mode/opt //scripts/rvarm1/ddp:bench Reviewed By: albanD Differential Revision: D30439492 fbshipit-source-id: 955917770cdf2a2edb0303223ace710b668ba388