Separate elementwise level2 math functions (#16753)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/16753
Separate elementwise level2 math functions
i-am-not-moving-c2-to-c10
Reviewed By: houseroad
Differential Revision: D13954928
fbshipit-source-id: 1ca7a5d3da96e32510f502e5e4e79168854bee67