pytorch

5f6e55fb - Clean up thrust::complex from tanh_backward (#39827)

Clean up thrust::complex from tanh_backward (#39827) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/39827 Differential Revision: D22067191 Pulled By: anjali411 fbshipit-source-id: a257f0e33a917c13a7d0b855a869e0b9aca61541