optimization.h revision 2d7352ba5311b8f57427b91b7a891e61497373c1 
1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ART_COMPILER_OPTIMIZING_OPTIMIZATION_H_
18#define ART_COMPILER_OPTIMIZING_OPTIMIZATION_H_
19
20#include "nodes.h"
21#include "optimizing_compiler_stats.h"
22
23namespace art {
24
25/**
26 * Abstraction to implement an optimization pass.
27 */
28class HOptimization : public ValueObject {
29 public:
30  HOptimization(HGraph* graph,
31                bool is_in_ssa_form,
32                const char* pass_name,
33                OptimizingCompilerStats* stats = nullptr)
34      : graph_(graph),
35        stats_(stats),
36        is_in_ssa_form_(is_in_ssa_form),
37        pass_name_(pass_name) {}
38
39  virtual ~HOptimization() {}
40
41  // Return the name of the pass.
42  const char* GetPassName() const { return pass_name_; }
43
44  // Peform the analysis itself.
45  virtual void Run() = 0;
46
47  // Verify the graph; abort if it is not valid.
48  void Check();
49
50 protected:
51  void MaybeRecordStat(MethodCompilationStat compilation_stat, size_t count = 1) const;
52
53  HGraph* const graph_;
54  // Used to record stats about the optimization.
55  OptimizingCompilerStats* const stats_;
56
57 private:
58  // Does the analyzed graph use the SSA form?
59  const bool is_in_ssa_form_;
60  // Optimization pass name.
61  const char* pass_name_;
62
63  DISALLOW_COPY_AND_ASSIGN(HOptimization);
64};
65
66}  // namespace art
67
68#endif  // ART_COMPILER_OPTIMIZING_OPTIMIZATION_H_
69