2 Copyright (c) 2017-2019 Intel Corporation
4 Licensed under the Apache License, Version 2.0 (the "License");
5 you may not use this file except in compliance with the License.
6 You may obtain a copy of the License at
8 http://www.apache.org/licenses/LICENSE-2.0
10 Unless required by applicable law or agreed to in writing, software
11 distributed under the License is distributed on an "AS IS" BASIS,
12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 See the License for the specific language governing permissions and
14 limitations under the License.
19 from mo.graph.graph import Node, Graph
20 from mo.ops.op import Op
23 class ConstantFill(Op):
24 """ Constant blob generation by broadcasting specified value to a given shape.
26 It is assumed that there is no equivalent of this op in IE,
27 so it is usually relevant to constant folding.
31 def __init__(self, graph: Graph, attrs: dict):
38 'infer': __class__.infer
40 super().__init__(graph, mandatory_props, attrs)
42 def supported_attrs(self):
49 def infer(node: Node):
50 assert len(node.in_nodes()) == 1
51 assert node.fill_value is not None
52 assert node.input_as_shape
54 shape = node.in_node(0).value
55 assert shape is not None
57 node.out_node(0).value = np.full(shape, node.fill_value, np.float32)
58 node.out_node(0).shape = np.array(node.out_node(0).value.shape, dtype=np.int64)