pytorch

6b24d7e4 - [caffe2] Allow LpNorm to accept empty tensor (#72660)

[caffe2] Allow LpNorm to accept empty tensor (#72660) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/72660 Sometimes it might happen when model gets an empty input. For consistency with numpy and torch we should just return 0 without averaging or NaN with averaging. Test Plan: Modified unittest Differential Revision: D33782786 fbshipit-source-id: 90d8d63d685c96acc903c08c59eb39fad39e493c (cherry picked from commit ca85779a4ea95e7500490208e359af860f613cc1)