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 update_pointer_storage_scope.h |
22 | * \brief A pass to update storage scopes for buffer variables. |
23 | */ |
24 | #ifndef TVM_TIR_TRANSFORMS_UPDATE_POINTER_STORAGE_SCOPE_H_ |
25 | #define TVM_TIR_TRANSFORMS_UPDATE_POINTER_STORAGE_SCOPE_H_ |
26 | |
27 | #include <tvm/tir/expr.h> |
28 | #include <tvm/tir/op.h> |
29 | #include <tvm/tir/stmt_functor.h> |
30 | |
31 | #include <unordered_map> |
32 | |
33 | namespace tvm { |
34 | namespace tir { |
35 | |
36 | class UpdatePointerStorageScope : public StmtExprMutator { |
37 | public: |
38 | explicit UpdatePointerStorageScope( |
39 | const std::unordered_map<const VarNode*, String>& new_storage_scopes); |
40 | |
41 | virtual PrimExpr VisitExpr_(const VarNode*); |
42 | virtual PrimExpr VisitExpr_(const LoadNode*); |
43 | virtual PrimExpr VisitExpr_(const BufferLoadNode*); |
44 | virtual Stmt VisitStmt_(const AllocateNode*); |
45 | virtual Stmt VisitStmt_(const StoreNode*); |
46 | virtual Stmt VisitStmt_(const BufferStoreNode*); |
47 | |
48 | private: |
49 | template <typename Node> |
50 | Node UpdateBufferAccess(Node node); |
51 | |
52 | Buffer GetUpdatedBuffer(Buffer buf); |
53 | |
54 | std::unordered_map<const VarNode*, Var> new_var_remap_; |
55 | std::unordered_map<const BufferNode*, Buffer> new_buffer_remap_; |
56 | }; |
57 | |
58 | } // namespace tir |
59 | } // namespace tvm |
60 | #endif // TVM_TIR_TRANSFORMS_UPDATE_POINTER_STORAGE_SCOPE_H_ |
61 | |