Fix crash with the CVM

theano/gof/vm.py

@@ -133,6 +133,7 @@ class VM(object):
 
             profile.apply_cimpl[node] = hasattr(thunk, 'cthunk')
 
+        if hasattr(self, 'variable_shape'):
             profile.variable_shape = self.variable_shape.copy()
             profile.variable_strides = self.variable_strides.copy()