Namely ``` /Users/nshulga/git/pytorch/pytorch/test/cpp_extensions/open_registration_extension.cpp:306:33: warning: left operand of comma operator has no effect [-Wunused-value] 306 | at::Tensor first = at::empty((2,3)).to(at::DeviceType::PrivateUse1); ``` Or switching between Python and C++ is hard In Python `(2, 3)` creates a tuple, in C/C++ it's just a integral literal 3 P.S. I could have vibe-coded the fix with Claude: https://claude.ai/share/82479e88-84cb-4299-aa2f-dafd28ee2d55 Pull Request resolved: https://github.com/pytorch/pytorch/pull/155755 Approved by: https://github.com/huydhn, https://github.com/atalman