31 lines
1.1 KiB
Python
31 lines
1.1 KiB
Python
# Copyright (C) 2018-2021 Intel Corporation
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# SPDX-License-Identifier: Apache-2.0
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import logging as log
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from mo.front.common.replacement import FrontReplacementSubgraph
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from mo.graph.graph import Graph
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class StandaloneConstEraser(FrontReplacementSubgraph):
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enabled = True
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# TODO: remove this transformation once all plugins support constant value network.
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# Now it avoids to be run recursively since Const->Result sub-graph can be encountered in a body graph of Loop node
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run_not_recursively = True
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@staticmethod
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def pattern():
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return dict(
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nodes=[('const', dict(kind='op', op='Const')),
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('output', dict(kind='op', op='Result'))
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],
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edges=[('const', 'output')]
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)
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@staticmethod
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def replace_sub_graph(graph: Graph, match: dict):
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if not len(match['const'].in_edges()) and len(match['const'].out_edges()) == 1:
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graph.erase_node(match['const'])
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graph.erase_node(match['output'])
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log.info("Standalone Const node \"{}\" was removed from the graph".format(match['const'].id))
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