tree d572e3bef2b84effa89f5ffb7dc1c9331acba013
parent 014f7479ac372a61d9fd6de7da03551a01a65aab
author Robert Suderman <suderman@google.com> 1588203721 -0700
committer TensorFlower Gardener <gardener@tensorflow.org> 1588203976 -0700

Concatenation zero-length operand removal

Remove any operand that is zero dimension. If any dimension is zero length, replace with a constant op.

PiperOrigin-RevId: 309123404
Change-Id: I7f1e56666693accfe3df8bdd35494047c69724ca