50 lines
1.8 KiB
Python
50 lines
1.8 KiB
Python
"""
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Copyright (C) 2018-2020 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 extensions.ops.activation_ops import Log
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from extensions.ops.elementwise import Add
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from mo.front.common.replacement import FrontReplacementOp
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from mo.graph.graph import Graph, Node, rename_nodes
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from mo.ops.const import Const
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class Log1p(FrontReplacementOp):
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"""
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Log1p computes natural logarithm of (1 + x) element-wise.
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It replaces Log1p operation with Add -> Log.
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"""
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op = "Log1p"
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enabled = True
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def replace_op(self, graph: Graph, node: Node):
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node_name = node.soft_get('name', node.id)
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const_dtype = np.float32
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if node.has_valid('data_type'):
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const_dtype = node.data_type
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const = Const(graph, {'value': np.array([1], dtype=const_dtype)}).create_node()
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add = Add(graph, {'name': node.name + '/Add_'}).create_node()
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log = Log(graph, {'name': node.name + '/Log_'}).create_node()
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# Connect nodes: input -> Add -> Log
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const.out_port(0).connect(add.in_port(0))
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node.in_port(0).get_connection().set_destination(add.in_port(1))
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add.out_port(0).connect(log.in_port(0))
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rename_nodes([(node, node_name + '/delete'), (log, node_name)])
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# The "explicit" version of the return value is: [(out_node.id, 0)])
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return [log.id]
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