Fix registration of new opt

theano/sandbox/cuda/opt.py

@@ -2547,7 +2547,7 @@ def local_gpu_alloc_empty_to_zeros(node):
         return [gpu_alloc(theano.tensor.constant(0, dtype='float32'),
                           *node.inputs)]
 optdb.register('local_gpu_alloc_empty_to_zeros',
-               local_gpu_alloc_empty_to_zeros,
+               theano.tensor.opt.in2out(local_gpu_alloc_empty_to_zeros),
                # After move to gpu and merge2, before inplace.
                49.3,
                'alloc_empty_to_zeros',)

theano/sandbox/gpuarray/opt.py

@@ -307,7 +307,7 @@ def local_gpua_alloc_empty_to_zeros(node):
         return [GpuAlloc()(theano.tensor.constant(0, dtype='float32'),
                            *node.inputs)]
 optdb.register('local_gpua_alloc_empty_to_zeros',
-               local_gpua_alloc_empty_to_zeros,
+               theano.tensor.opt.in2out(local_gpua_alloc_empty_to_zeros),
                # After move to gpu and merge2, before inplace.
                49.3,
                'alloc_empty_to_zeros',)

theano/tensor/opt.py

@@ -1780,7 +1780,7 @@ def local_alloc_empty_to_zeros(node):
     if isinstance(node.op, T.AllocEmpty):
         return [T.zeros(node.inputs, dtype=node.outputs[0].dtype)]
 compile.optdb.register('local_alloc_empty_to_zeros',
-                       local_alloc_empty_to_zeros,
+                       in2out(local_alloc_empty_to_zeros),
                        # After move to gpu and merge2, before inplace.
                        49.3,
                        'alloc_empty_to_zeros',)