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 | * \file tir/ir/buffer_common.h |
21 | * \brief Common utils for buffer access |
22 | */ |
23 | #ifndef TVM_TIR_IR_BUFFER_COMMON_H_ |
24 | #define TVM_TIR_IR_BUFFER_COMMON_H_ |
25 | |
26 | #include <tvm/ir/type.h> |
27 | #include <tvm/runtime/data_type.h> |
28 | |
29 | #include <optional> |
30 | |
31 | namespace tvm { |
32 | namespace tir { |
33 | |
34 | /*! |
35 | * \brief Returns the type of object pointed to. |
36 | * |
37 | * \param type The type to be checked. |
38 | * |
39 | * \return An std::optional<DataType> object. If the type is a pointer |
40 | * to a primitive type, the object has a value which is the pointed-to |
41 | * type. Otherwise the object is nullopt. |
42 | */ |
43 | inline std::optional<runtime::DataType> GetPointerType(const Type& type) { |
44 | if (type.defined()) { |
45 | if (auto* ptr_type = type.as<PointerTypeNode>()) { |
46 | if (auto* prim_type = ptr_type->element_type.as<PrimTypeNode>()) { |
47 | return prim_type->dtype; |
48 | } |
49 | } |
50 | } |
51 | |
52 | return std::nullopt; |
53 | } |
54 | |
55 | } // namespace tir |
56 | } // namespace tvm |
57 | #endif // TVM_TIR_IR_BUFFER_COMMON_H_ |
58 | |