length check added

theano/tensor/opt.py

@@ -609,6 +609,7 @@ def local_dimshuffle_lift(node):
     # covers two types of useless dimshuffle:
     #   1 - dimshuffle all dimensions in order
     #   2 - dimshuffle a broadcastable dimension
+    if len(op.new_order) == input.type.ndim:
         is_useless = False
         all_broadcastable_dims = [i for (i, is_broadcastable)
                                   in enumerate(input.type.broadcastable)