pytorch

16d937b0 - Fix strided _conv_double_backward() with 3D input / weight (#67283)

Fix strided _conv_double_backward() with 3D input / weight (#67283) Summary: Removes the 3D special case logic in `_convolution_double_backward()` that never worked. The logic was never called previously since `convolution()` expands input / weight from 3D -> 4D before passing them to backends; backend-specific backward calls thus save the 4D version to pass to `_convolution_double_backward()`. The new general `convolution_backward()` saves the original 3D input / weight, uncovering the bug. Pull Request resolved: https://github.com/pytorch/pytorch/pull/67283 Reviewed By: anjali411 Differential Revision: D32021100 Pulled By: jbschlosser fbshipit-source-id: 0916bcaa77ef49545848b344d6385b33bacf473d