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Anjali Chourdia 30e48bbeae Add neg bit (#56058) 
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/56058

User facing changes:
1. Adds a negative bit and corresponding new API (`is_neg()`,`resolve_neg()`)
2. `tensor.conj().imag` now returns a floating point tensor with neg bit set to 1 instead of a tensor with no notion of negative bit. Note that imag is still a view and all the view properties still hold for imag.

Non user facing changes:
1. Added a new Negative dispatch key and a backend fallback to handle it
2. Updated copy kernel to handle negative bit
3. Merged conjugate and negative bit fallback kernel
4. fixed https://github.com/pytorch/pytorch/issues/60478 (caused due to https://github.com/pytorch/pytorch/pull/54987)

Testing:
1. Added a new OpInfo based test `test_neg_view` (verifies that out-of-place and in-place operations work correctly for all operations when the input is a neg view tensor by checking the result against an actually negated tensor, verifies that autograd returns the same output for both neg view and actually negated tensors as well as it works fine when grad_out is a neg view).
2. Added a new test class containing `test_conj_view`, `test_neg_view`.

Test Plan: Imported from OSS

Reviewed By: soulitzer

Differential Revision: D29636403

fbshipit-source-id: 12214c9dc4806c51850f4a72a109db9527c0ca63
2021-07-13 13:50:42 -07:00
..
_static DOC Improve documentation for LayerNorm (#59178) 2021-06-07 14:34:10 -07:00
_templates Remove master documentation from being indexable by search engines (#58056) 2021-05-18 06:20:09 -07:00
community Lint trailing newlines (#54737) 2021-03-30 13:09:52 -07:00
elastic [torch] Various improvements to torch.distributed.launch and torch.distributed.run (#61294) 2021-07-08 16:28:06 -07:00
notes clarify default value of requires_grad for tensors (#61038) 2021-07-12 12:57:37 -07:00
rpc Forbid trailing whitespace (#53406) 2021-03-05 17:22:55 -08:00
scripts Add mish activation function (#58648) 2021-05-25 10:36:21 -07:00
__config__.rst Fix __config__ docs (#48557) 2020-11-29 23:57:06 -08:00
amp.rst Moves grid_sampler to autocast promote list (#58618) 2021-06-21 10:22:36 -07:00
autograd.rst Add no-grad inference mode note (#58513) 2021-05-25 13:06:54 -07:00
backends.rst Forbid trailing whitespace (#53406) 2021-03-05 17:22:55 -08:00
benchmark_utils.rst Expand benchmark utils docs (#51664) 2021-02-04 00:22:41 -08:00
bottleneck.rst
checkpoint.rst
complex_numbers.rst Abladawood patch 1 (#58496) 2021-05-20 10:32:18 -07:00
conf.py fix torch.futures docstring examples (#61029) 2021-07-07 11:47:55 -07:00
cpp_extension.rst
cpp_index.rst
cuda.rst breakup optim, cuda documentation (#55673) 2021-04-14 12:44:00 -07:00
cudnn_persistent_rnn.rst Forbid trailing whitespace (#53406) 2021-03-05 17:22:55 -08:00
cudnn_rnn_determinism.rst Forbid trailing whitespace (#53406) 2021-03-05 17:22:55 -08:00
data.rst [DataLoader][doc] Randomness for base_seed generator and NumPy seed (#56528) 2021-04-22 09:40:45 -07:00
ddp_comm_hooks.rst [Gradient Compression] Remove unnecessary warning on the rst file and the check on C++ version (#58170) 2021-05-12 14:15:10 -07:00
distributed.elastic.rst [1/n][torch/elastic] Move torchelastic docs *.rst (#148) 2021-05-04 00:57:56 -07:00
distributed.optim.rst [Reland] Update and expose ZeroRedundancyOptimizer docs (#53112) 2021-03-02 14:16:12 -08:00
distributed.rst Add compare_set in distributed docs (#61351) 2021-07-08 12:30:32 -07:00
distributions.rst Add sample validation for LKJCholesky.log_prob (#52763) 2021-02-25 16:12:29 -08:00
dlpack.rst Lint trailing newlines (#54737) 2021-03-30 13:09:52 -07:00
docutils.conf
fft.rst Use autosummary on torch.fft, torch.linalg (#55748) 2021-04-13 12:02:36 -07:00
futures.rst Update docs to mention CUDA support for Future (#50048) 2021-05-11 08:26:33 -07:00
fx.rst [FX][docs][EZ] Fix link to fuser example (#59670) 2021-06-08 17:32:55 -07:00
hub.rst Add a torch.hub.load_local() function that can load models from any local directory with a hubconf.py (#44204) 2020-09-21 14:17:21 -07:00
index.rst add torch.testing to docs (#57247) 2021-05-07 09:16:39 -07:00
jit_builtin_functions.rst Lint trailing newlines (#54737) 2021-03-30 13:09:52 -07:00
jit_language_reference_v2.rst Fix hasattr support type (#57950) 2021-05-10 12:21:56 -07:00
jit_language_reference.rst add type annotations to torch.nn.modules.conv (#49564) 2021-01-15 11:16:11 -08:00
jit_python_reference.rst [JIT] improve documentation (#57991) 2021-05-19 11:47:32 -07:00
jit_unsupported.rst [JIT] Update docs for recently added features (#45232) 2020-09-28 18:17:42 -07:00
jit.rst Remove caption for Lang Reference (#56526) 2021-04-20 14:33:42 -07:00
linalg.rst Add torch.linalg.inv_ex without checking for errors by default (#58039) 2021-05-13 09:42:15 -07:00
math-quantizer-equation.png
mobile_optimizer.rst Mod lists to neutral+descriptive terms in caffe2/docs (#49803) 2020-12-23 11:37:11 -08:00
model_zoo.rst
multiprocessing.rst Forbid trailing whitespace (#53406) 2021-03-05 17:22:55 -08:00
name_inference.rst Abladawood patch 1 (#58496) 2021-05-20 10:32:18 -07:00
named_tensor.rst Forbid trailing whitespace (#53406) 2021-03-05 17:22:55 -08:00
nn.functional.rst Add mish activation function (#58648) 2021-05-25 10:36:21 -07:00
nn.init.rst
nn.rst Added GLU and FeatureAlphaDropout to nn docs (#60590) 2021-06-24 08:00:18 -07:00
onnx.rst [ONNX] Update documentation (#58712) (#60249) 2021-07-08 16:29:32 -07:00
optim.rst To add Rectified Adam Algorithm to Optimizers (#58968) 2021-06-23 18:27:57 -07:00
package.rst [package] PackageExporter remove verbose mode (#61145) 2021-07-08 18:26:43 -07:00
pipeline.rst Add tutorials to pipeline docs. (#55209) 2021-04-05 20:01:00 -07:00
profiler.rst docs: fix profiler docstring (#55750) 2021-04-13 00:23:14 -07:00
quantization-support.rst [docs][quant] Add fx graph mode quant api doc (#55306) 2021-04-05 13:56:23 -07:00
quantization.rst quantization: improve documentation on natively supported backends (#58925) 2021-06-07 17:29:03 -07:00
random.rst
rpc.rst Add a disclaimer about limited CUDA support in RPC (#58023) 2021-05-12 00:11:22 -07:00
sparse.rst Add CSR (compressed sparse row) layout for sparse tensors (#50937) 2021-04-12 10:09:12 -07:00
special.rst [special] migrate log_softmax (#60512) 2021-07-12 11:01:25 -07:00
storage.rst Lint trailing newlines (#54737) 2021-03-30 13:09:52 -07:00
tensor_attributes.rst Remove legacy constructor calls from pytorch codebase. (#54142) 2021-04-11 15:45:17 -07:00
tensor_view.rst Conjugate View (#54987) 2021-06-04 14:12:41 -07:00
tensorboard.rst
tensors.rst Add neg bit (#56058) 2021-07-13 13:50:42 -07:00
testing.rst add torch.testing to docs (#57247) 2021-05-07 09:16:39 -07:00
torch.nn.intrinsic.qat.rst [quantization] Add some support for 3d operations (#50003) 2021-03-10 16:40:35 -08:00
torch.nn.intrinsic.quantized.rst Lint trailing newlines (#54737) 2021-03-30 13:09:52 -07:00
torch.nn.intrinsic.rst [quantization] Add some support for 3d operations (#50003) 2021-03-10 16:40:35 -08:00
torch.nn.qat.rst Lint trailing newlines (#54737) 2021-03-30 13:09:52 -07:00
torch.nn.quantized.dynamic.rst Forbid trailing whitespace (#53406) 2021-03-05 17:22:55 -08:00
torch.nn.quantized.rst [quant] add docs for embedding/embedding_bag (#51770) 2021-02-05 11:43:15 -08:00
torch.overrides.rst Add documentation for torch.overrides submodule. (#48170) 2020-11-30 11:25:31 -08:00
torch.quantization.rst Lint trailing newlines (#54737) 2021-03-30 13:09:52 -07:00
torch.rst Add neg bit (#56058) 2021-07-13 13:50:42 -07:00
type_info.rst