Devirtualize numel() (#27294)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/27294
Fixes #27291
I'm a little annoyed that I have to reintroduce manual binding code. But it's
probably not a good idea to teach the codegen how to do fastpath functions
(is it?)
Signed-off-by: Edward Z. Yang <ezyang@fb.com>
Test Plan: Imported from OSS
Differential Revision: D17763486
Pulled By: ezyang
fbshipit-source-id: 5793b53e2db80b044e57faae325a95c649d9d459
