tree c8c819aacc66c81a04182a4acee2d2359e8cfd8a
parent 5ccbaeeef543858f47f0f8c4b1ce2f9de3c9ddc9
author Robert David <lrdx@google.com> 1575590969 -0800
committer TensorFlower Gardener <gardener@tensorflow.org> 1575591280 -0800

Skip VectorVectorCwiseProduct when cell_state is known to be all zeros.

PiperOrigin-RevId: 284075550
Change-Id: I4d6bdef76e5306671b3ee165e0b496095d2bf83a