tests fail in WINO=1 python -m pytest test/test_ops.py -k conv

[chenyuxyz]

FAILED test/test_ops.py::TestOps::test_fancy_conv2d - AssertionError: invalid shrink ((0, 2), (0, 3), (0, 9), (0, 26)) for (2, 3, 8, 28)
FAILED test/test_ops.py::TestOps::test_nested_conv2d - Exception: backward pass tensor 0 failed shape (1, 32, 9, 9): 
FAILED test/test_ops.py::TestOps::test_output_padded_conv_transpose2d - AssertionError: invalid shrink ((0, 2), (0, 4), (0, 14), (0, 16)) for (2, 4, 12, 16)
FAILED test/test_ops.py::TestOps::test_padded_conv2d_bs1 - AssertionError: invalid shrink ((0, 1), (0, 4), (0, 11), (0, 28)) for (1, 4, 8, 28)
FAILED test/test_ops.py::TestOps::test_padded_conv2d_p21 - AssertionError: invalid shrink ((0, 4), (0, 4), (0, 13), (0, 28)) for (4, 4, 12, 28)
FAILED test/test_ops.py::TestOps::test_padded_conv2d_p22 - AssertionError: invalid shrink ((0, 4), (0, 4), (0, 13), (0, 30)) for (4, 4, 12, 32)