pytorch

9c144bc4 - Dont increment generation if forward of backward exists, and warning on deallocation of live tensors (#97168)

Dont increment generation if forward of backward exists, and warning on deallocation of live tensors (#97168) Refining the logic for when it is okay to ignore previously live outputs from cudagraphs. If there is a forward that has been invoked without invocation of the corresponding backwards, dont allow overwriting outputs. Differential Revision: [D44228369](https://our.internmc.facebook.com/intern/diff/D44228369) Pull Request resolved: https://github.com/pytorch/pytorch/pull/97168 Approved by: https://github.com/ezyang, https://github.com/jansel