[tensorexp] ExternalCall2 without memcpy (#72225)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/72225
Test Plan: Imported from OSS
Reviewed By: dagitses
Differential Revision: D33960933
Pulled By: IvanKobzarev
fbshipit-source-id: fc73a3de9e5150919e3806516065b4a6c8316000
(cherry picked from commit f637842c341e0ba94906a0c8a1efc81691dc512c)
