commit 8c689bdfc391e47854ec27bad0f9d685135af253
author Yang Ni <yangni@google.com> Wed Sep 27 10:26:52 2017 -0700
committer Yang Ni <yangni@google.com> Mon Oct 02 14:43:21 2017 -0700
tree 380569fee4db95c9ec118516b669959f53922a5d
parent 09c60572cc6954c8d87a55c7d2a273d9a8490b65

Add preparation code missed in some OPs

Bug: 63905942

This updates speech model related OPs: Embedding Lookup,
Hashtable Lookup, LSH Projection, LSTM, RNN, and SVDF.

Deduce the shape of an output or intermediate tensor.
Allocate memory if needed (i.e., not set by user).
Validate inputs (dimensions, etc.)

Minor cleanups related to the utility functions shared by these ops.

Also made necessary fixes and implementations as discovered while
doing this.

Test: NeuralNetworksTest

Change-Id: I7c0b789edb4d3565526d58905609d2023c1a5351