40 lines
1.4 KiB
Python
40 lines
1.4 KiB
Python
"""
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Copyright (C) 2020 Intel Corporation
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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"""
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import numpy as np
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from mo.graph.graph import Graph
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from mo.middle.passes.eliminate import remove_op_node_with_data_node
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from mo.middle.replacement import MiddleReplacementPattern
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class RemoveUselessPad(MiddleReplacementPattern):
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"""
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The Pad layer is removed if all padding values are equal to 0 (Constant values).
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"""
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enabled = True
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def find_and_replace_pattern(self, graph: Graph):
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for node in graph.get_op_nodes(op='Pad'):
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all_pads_zeros = True
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for in_port_ind in range(1, 3):
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input_node = node.in_port(in_port_ind).get_source().node
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value = input_node.soft_get('value', None)
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all_pads_zeros &= input_node.soft_get('type') == 'Const' and value is not None and np.all(value == 0)
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if all_pads_zeros:
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remove_op_node_with_data_node(graph, node)
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