pytorch

fc6a488e - extract out //c10/core:alignment (#70858)

extract out //c10/core:alignment (#70858) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/70858 ghstack-source-id: 147642533 Test Plan: Extracted a constant to a new header, trusting CI build to validate. Reviewed By: malfet Differential Revision: D33329689 fbshipit-source-id: 8697bb81a5cc3366462ebdf1f214b62d478fa77c (cherry picked from commit 16663847e179ea1c2a16f2bb538cfe3aca032593)