pytorch

594cadeb - Make sure temporary vectors are properly initialized in avx2 code (#32722)

Make sure temporary vectors are properly initialized in avx2 code (#32722) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/32722 Checked using [this](https://godbolt.org/z/uAaE9R) that it gives the correct assembly. Test Plan: Imported from OSS Differential Revision: D19610012 Pulled By: albanD fbshipit-source-id: 4d1cb812951ae03d412a0fba3c80730f0d286e1f