Added in2out to useless

theano/compile/mode.py

@@ -159,6 +159,7 @@ optdb.register('useless', gof.optdb.TopoDB(local_useless),
 # The opt should not do anything that need shape inference.
 # New nodes that don't have infer_shape need that the original node
 # also don't have infer_shape
+
 optdb.register('merge1.1', gof.MergeOptimizer(),
                0.65, 'fast_run', 'fast_compile', 'merge')
 

theano/tensor/opt.py

@@ -369,7 +369,7 @@ compile.optdb.register('inplace_elemwise_opt', inplace_elemwise_optimizer, 75,
                        'inplace_elemwise_optimizer',
                        'fast_run', 'inplace')
 
-
+position = 0
 def register_useless(lopt, *tags, **kwargs):
     if type(lopt) == str:
         def register(inner_lopt):
@@ -382,6 +382,7 @@ def register_useless(lopt, *tags, **kwargs):
         return lopt
 
 
+
 def register_canonicalize(lopt, *tags, **kwargs):
     if type(lopt) == str:
         def register(inner_lopt):