Failing assertions is unlikely (#20876)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/20876
Tell the compiler that assertions are likely to succeed.
This allows the compiler to generate betterr code and optimize for the success case.
Differential Revision: D15480066
fbshipit-source-id: 4485154d66b2ee0ef8a401718712dbd61d811aee
