[TensorExpr] Fuser: only require input shapes to be known (output shapes can be inferred). (#43171)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/43171
Differential Revision: D23178228
Test Plan: Imported from OSS
Reviewed By: eellison
Pulled By: ZolotukhinM
fbshipit-source-id: e3465066e0cc4274d28db655de274a51c67594c4
Author
Mikhail Zolotukhin
