pytorch

ee1012ac - [UPDATED PROTOTYPE] Use dynamo fake tensor mode in aot_autograd, move aot_autograd compilation to lowering time

[UPDATED PROTOTYPE] Use dynamo fake tensor mode in aot_autograd, move aot_autograd compilation to lowering time After all of the preparatory commits, this is a subset of the changes in https://github.com/pytorch/pytorch/pull/89392 that actually change us to propagating fake tensors to backends. Signed-off-by: Edward Z. Yang <ezyangfb.com> ghstack-source-id: 8684d1d66d559cd1b40bdca6370aa2f6fb513bda Pull Request resolved: https://github.com/pytorch/pytorch/pull/89672