54 lines
2.5 KiB
Python
54 lines
2.5 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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from extensions.ops.elementwise import Add
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from mo.back.replacement import BackReplacementPattern
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from mo.front.common.partial_infer.utils import int64_array
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from mo.front.tf.graph_utils import create_op_with_const_inputs
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from mo.graph.graph import Graph, rename_nodes, rename_node
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class FakeOutputResolver(BackReplacementPattern):
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"""
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This transformation removes FakeOutput nodes. If producer of FakeOutput have only one consumer (FakeOutput itself)
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the name of FakeOutput is inherited by its producer, otherwise FakeOutput is replaced with op which does nothing.
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"""
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enabled = True
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force_clean_up = True
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def find_and_replace_pattern(self, graph: Graph):
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for fake_output in graph.get_op_nodes(op='FakeOutput'):
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name = fake_output.soft_get('name', fake_output.id)
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producer = fake_output.in_port(0).get_source().node
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producer_outputs = 0
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for port in producer.out_ports().values():
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if not port.disconnected():
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producer_outputs += 1
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if producer_outputs != 1:
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# At this stage we don't know the type of output, so we rely on MO transformation which updates the
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# Const type for elementwise operations in case of input data types mismatch
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add = create_op_with_const_inputs(graph, Add, {1: int64_array(0)}, {'can_be_fused': False})
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rename_nodes([(fake_output, name + '/TBD'), (add, name)])
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fake_output.in_port(0).get_connection().set_destination(add.in_port(0))
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fake_output.out_port(0).get_connection().set_source(add.out_port(0))
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else:
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result_in_port = fake_output.out_port(0).get_destination()
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result_in_port.disconnect()
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fake_output.in_port(0).get_connection().set_destination(result_in_port)
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rename_nodes([(fake_output, name + '/TBD'), (producer, name)])
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