Prune away Identity nodes without regular outputs. (Addresses TODO from cl/175780178).
authorA. Unique TensorFlower <gardener@tensorflow.org>
Wed, 17 Jan 2018 23:07:39 +0000 (15:07 -0800)
committerTensorFlower Gardener <gardener@tensorflow.org>
Wed, 17 Jan 2018 23:11:21 +0000 (15:11 -0800)
commitd58b7511929a2f8b06fef53f13a2c3eff29e9210
tree6bd29d8586d7f52fe1f0753e622380d68f169cc3
parenta41f21a6701a77327e66bfec70cb97ecad636070
Prune away Identity nodes without regular outputs. (Addresses TODO from cl/175780178).

PiperOrigin-RevId: 182277131
tensorflow/core/grappler/optimizers/dependency_optimizer.cc
tensorflow/core/grappler/optimizers/dependency_optimizer_test.cc
tensorflow/python/grappler/memory_optimizer_test.py