Fix a few bugs in ArithmeticOptimizer and make it robust to failures of shape inference.
authorA. Unique TensorFlower <gardener@tensorflow.org>
Fri, 6 Apr 2018 19:18:04 +0000 (12:18 -0700)
committerTensorFlower Gardener <gardener@tensorflow.org>
Fri, 6 Apr 2018 19:21:28 +0000 (12:21 -0700)
commit4d90c62824a2e4e445efab58d2c5829774a884ea
tree0da4301318b73186270d8d21e5f1afcc1b723b0d
parenta056c115e83e6f07fd3dbb5d6439658828025024
Fix a few bugs in ArithmeticOptimizer and make it robust to failures of shape inference.

PiperOrigin-RevId: 191922788
tensorflow/core/grappler/optimizers/arithmetic_optimizer.cc
tensorflow/core/grappler/optimizers/arithmetic_optimizer.h
tensorflow/core/grappler/optimizers/graph_optimizer_stage.cc