pytorch

bc371a2c - [quant][fx][fix] Add additional checks when tracing back during maybe share output observer function

[quant][fx][fix] Add additional checks when tracing back during maybe share output observer function Summary: Currently in `maybe_make_input_output_share_observers` we trace back from a node to find the activation_post_process of the input node, we have internal use case which would error out during tracing back, this PR is adding a guard during this process to return False early when the node doesn't have any input Test Plan: not sure when this would happen, verify within the internal test case Reviewers: Subscribers: Tasks: Tags: Pull Request resolved: https://github.com/pytorch/pytorch/pull/75650 Approved by: https://github.com/vkuzo