pytorch

1267dcf2 - [inductor] Fix nan handling for aten.sign (#88937)

[inductor] Fix nan handling for aten.sign (#88937) ATen gives `sign(nan) == 0` but inductor's cuda codegen would give `sign(nan) == 1`. Pull Request resolved: https://github.com/pytorch/pytorch/pull/88937 Approved by: https://github.com/ngimel