Fix test in debugmode

theano/sandbox/gpuarray/basic_ops.py

@@ -727,8 +727,9 @@ class GpuAllocEmpty(HideC, Alloc):
 
     def make_node(self, *shape):
         sh, bcast = self.validate_shape(shape)
-        otype = GpuArrayType(dtype=self.dtype, broadcastable=bcast)
-        return Apply(self, sh, [otype()])
+        output = GpuArrayType(dtype=self.dtype, broadcastable=bcast)()
+        output.tag.values_eq_approx = tensor.type.values_eq_approx_always_true
+        return Apply(self, sh, [output])
 
     def perform(self, node, inputs, out_):
         out = out_[0]