pytorch

57d6e19d - Use union to cast between incompatible function pointers (#38842)

Use union to cast between incompatible function pointers (#38842) Summary: This fixes `can not cast between incompatible function types` error if code is compiled by gcc-9.3 Pull Request resolved: https://github.com/pytorch/pytorch/pull/38842 Differential Revision: D21676360 Pulled By: malfet fbshipit-source-id: d8b05d8381bfc961e06981731ebca87a516c2811