27 lines
960 B
Python
27 lines
960 B
Python
# Copyright (C) 2018-2021 Intel Corporation
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# SPDX-License-Identifier: Apache-2.0
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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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