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/arithmetic/ir_visitor_with_analyzer.h |
22 | * \brief IR visitor class with an analyzer context. |
23 | */ |
24 | |
25 | #ifndef TVM_ARITH_IR_VISITOR_WITH_ANALYZER_H_ |
26 | #define TVM_ARITH_IR_VISITOR_WITH_ANALYZER_H_ |
27 | |
28 | #include <tvm/arith/analyzer.h> |
29 | #include <tvm/tir/expr.h> |
30 | #include <tvm/tir/stmt_functor.h> |
31 | |
32 | namespace tvm { |
33 | namespace arith { |
34 | |
35 | class IRVisitorWithAnalyzer : public tir::StmtExprVisitor { |
36 | public: |
37 | PrimExpr Simplify(const PrimExpr& expr) { return analyzer_.Simplify(expr); } |
38 | |
39 | using StmtExprVisitor::VisitExpr_; |
40 | using StmtExprVisitor::VisitStmt_; |
41 | |
42 | void VisitStmt_(const tir::ForNode* op); |
43 | void VisitStmt_(const tir::BlockNode* op); |
44 | void VisitStmt_(const tir::LetStmtNode* op); |
45 | void VisitStmt_(const tir::IfThenElseNode* op); |
46 | void VisitStmt_(const tir::AttrStmtNode* op); |
47 | void VisitStmt_(const tir::AssertStmtNode* op); |
48 | void VisitExpr_(const tir::CallNode* op); |
49 | void VisitExpr_(const tir::LetNode* op); |
50 | void VisitExpr_(const tir::ReduceNode* op); |
51 | |
52 | // IRVisitorWithAnalyzer deliberately does not handle Select nodes, |
53 | // because both sides of a Select node are visited regardless of the |
54 | // condition. |
55 | |
56 | protected: |
57 | /*! \brief internal analyzer field. */ |
58 | arith::Analyzer analyzer_; |
59 | |
60 | /*! \brief Extract a constraint from a conditional statement |
61 | * |
62 | * Intended for preparing argument for use in |
63 | * `With<ConstraintContext>`. |
64 | */ |
65 | PrimExpr (PrimExpr condition) const; |
66 | }; |
67 | |
68 | } // namespace arith |
69 | } // namespace tvm |
70 | #endif // TVM_ARITH_IR_VISITOR_WITH_ANALYZER_H_ |
71 | |