xref: /aosp_15_r20/external/executorch/backends/xnnpack/operators/op_abs.py (revision 523fa7a60841cd1ecfb9cc4201f1ca8b03ed023a) 
1# Copyright (c) Meta Platforms, Inc. and affiliates.
2# All rights reserved.
3#
4# This source code is licensed under the BSD-style license found in the
5# LICENSE file in the root directory of this source tree.
6
7from typing import Dict
8
9import torch
10from executorch.backends.xnnpack.operators.node_visitor import (
11    NodeVisitor,
12    register_node_visitor,
13)
14from executorch.backends.xnnpack.serialization.xnnpack_graph_schema import (
15    XNNAbs,
16    XNNGraph,
17    XNode,
18)
19from executorch.backends.xnnpack.utils.utils import get_input_node
20
21
22@register_node_visitor
23class AbsVisitor(NodeVisitor):
24    target = "aten.abs.default"
25
26    def __init__(self, *args) -> None:
27        super().__init__(*args)
28
29    def define_node(
30        self,
31        node: torch.fx.Node,
32        xnn_graph: XNNGraph,
33        vals_to_ids: Dict[torch.fx.Node, int],
34        debug_handle: int,
35    ) -> None:
36        self.define_nodes_tensor_inputs_outputs(node, xnn_graph, vals_to_ids)
37
38        # input
39        input_id = vals_to_ids[get_input_node(node, 0)]
40
41        # output
42        output_id = vals_to_ids[node]
43
44        ser_node = XNode(
45            xnode_union=XNNAbs(
46                input_id=input_id,
47                output_id=output_id,
48                flags=0,
49            ),
50            debug_handle=debug_handle,
51        )
52        xnn_graph.xnodes.append(ser_node)
53