[primTorch] flatten, squeeze, unsqueeze... (#77043)
This PR ...
Makes the following testing changes:
- Updates stride testing in test_python_reference_consistency to only check strides of dimensions with length > 1
- Creates reference inputs for reshape
- Creates reference inputs for chunk
- Extends the sample inputs for unsqueeze
- Extends the sample inputs for stack -- test_conj_view and test_neg_view are now xfailed
- https://github.com/pytorch/pytorch/issues/77046
Makes the following architecture changes:
- Adds the refs.special (sub)module
- Adds the refs.nn.functional (sub)module
Adds the following prims:
- expand_dims
- view_of
- rev
- clone
Adds the following references:
- flatten
- squeeze
- unsqueeze
- special.i0e
- special.i1e
- logical_or
- logical_and
- isclose
- flip
- stack
- nn.functional.elu
- chunk
- clone
- narrow
Identifies the following bugs in PyTorch today:
- https://github.com/pytorch/pytorch/issues/77054
- https://github.com/pytorch/pytorch/issues/77055
Pull Request resolved: https://github.com/pytorch/pytorch/pull/77043
Approved by: https://github.com/ngimel
