Modifications based on review.

theano/gpuarray/subtensor.py

@@ -593,13 +593,14 @@ class GpuAdvancedIncSubtensor(HideC, tensor.AdvancedIncSubtensor):
 
     """
     def make_node(self, x, y, *inputs):
-        ctx_name = infer_context_name(x)
+        ctx_name = infer_context_name(x, y)
         rval = tensor.AdvancedIncSubtensor.make_node(self, x, y, *inputs)
         otype = GpuArrayType(dtype=rval.outputs[0].type.dtype,
                              broadcastable=rval.outputs[0].type.broadcastable,
                              context_name=ctx_name)
         x = as_gpuarray_variable(x, ctx_name)
-        return gof.Apply(self, [x] + rval.inputs[1:], [otype()])
+        y = as_gpuarray_variable(y, ctx_name)
+        return gof.Apply(self, [x, y] + rval.inputs[2:], [otype()])
 
     # We can't use the parent version that loops on each index
     # as we also need to loop when set_instead_of_inc is True and the
@@ -673,8 +674,6 @@ class GpuAdvancedIncSubtensor(HideC, tensor.AdvancedIncSubtensor):
         # build the indices and use it
         take_idx = sum((i * s for i, s in zip(nidx, strides))).flatten()
         k = get_iadd(node.inputs[0], node.inputs[1])
-        y_flat = pygpu.asarray(y_flat, context=x_flat.context)
-
         for j, i in enumerate(take_idx):
             k(x_flat[i], y_flat[j], broadcast=True)
         out[0] = x