1/*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19
20/*!
21 * \file tvm/relay/qnn/transform.h
22 *
23 * This file implements a pass manager for QNN ops using Relay Pass manager.
24 */
25#ifndef TVM_RELAY_QNN_TRANSFORM_H_
26#define TVM_RELAY_QNN_TRANSFORM_H_
27
28#include <tvm/relay/transform.h>
29#include <tvm/runtime/c_runtime_api.h>
30
31namespace tvm {
32namespace relay {
33
34using relay::transform::Pass;
35
36namespace qnn {
37namespace transform {
38
39/*!
40 * \brief Legalizes a QNN expr. Contains specifically two types of Legalizations. First,
41 * converts/Lowers an expression containing QNN ops to an expression containing only core Relay ops.
42 * Each QNN op is lowered to a sequence of exisiting Relay ops. This is a target-independent pass.
43 * One can register the lowering/transformation function for this op using FTVMQnnCanonicalize
44 * attr_name for FTVMLegalize op attribute. Second, as opposed to Relay Legalize, this one legalizes
45 * only QNN ops. One can register a transformation/legalization function for an op by using the
46 * FTVMQnnLegalize attr_name for FTVMLegalize op attribute. The isolation of QNN and Relay Legalize
47 * gives us separation of concerns, leading to a better software practice. The legalization can be
48 * configured to happen per target.
49 *
50 * \return The pass.
51 */
52TVM_DLL Pass Legalize();
53
54} // namespace transform
55
56} // namespace qnn
57} // namespace relay
58} // namespace tvm
59
60#endif // TVM_RELAY_QNN_TRANSFORM_H_
61