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 pad_utils.h
22 * \brief Padding helpers
23 */
24#ifndef TVM_TOPI_DETAIL_PAD_UTILS_H_
25#define TVM_TOPI_DETAIL_PAD_UTILS_H_
26
27#include <tvm/te/operation.h>
28#include <tvm/tir/expr.h>
29#include <tvm/tir/op.h>
30
31#include <vector>
32
33namespace tvm {
34namespace topi {
35namespace detail {
36
37using namespace tvm::te;
38
39/*!
40 * \brief Get padding size for each side given padding height and width
41 *
42 * \param pad_h The amount to pad each of the top and bottom sides
43 * \param pad_w The amount to pad each of the left and right sides
44 *
45 * \return An array of 4 elements, representing padding sizes for
46 * each individual side. The array is in the order { top, left, bottom, right }
47 */
48inline Array<PrimExpr> GetPadTuple(PrimExpr pad_h, PrimExpr pad_w) {
49 pad_h *= 2;
50 pad_w *= 2;
51
52 auto pad_top = indexdiv(pad_h + 1, 2);
53 auto pad_left = indexdiv(pad_w + 1, 2);
54
55 return {pad_top, pad_left, pad_h - pad_top, pad_w - pad_left};
56}
57
58} // namespace detail
59} // namespace topi
60} // namespace tvm
61#endif // TVM_TOPI_DETAIL_PAD_UTILS_H_
62