optimization.h revision 82091dad38f3e5bfaf3b6984c9ab73069fb68310 
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
22namespace art {
23
24static const char* kLivenessPassName = "liveness";
25static const char* kRegisterAllocatorPassName = "register";
26static const char* kLoopInvariantCodeMotionPassName = "licm";
27
28/**
29 * Abstraction to implement an optimization pass.
30 */
31class HOptimization : public ValueObject {
32 public:
33  HOptimization(HGraph* graph,
34                bool is_in_ssa_form,
35                const char* pass_name)
36      : graph_(graph),
37        is_in_ssa_form_(is_in_ssa_form),
38        pass_name_(pass_name) {}
39
40  virtual ~HOptimization() {}
41
42  // Return the name of the pass.
43  const char* GetPassName() const { return pass_name_; }
44
45  // Peform the analysis itself.
46  virtual void Run() = 0;
47
48  // Verify the graph; abort if it is not valid.
49  void Check();
50
51 protected:
52  HGraph* const graph_;
53
54 private:
55  // Does the analyzed graph use the SSA form?
56  const bool is_in_ssa_form_;
57  // Optimization pass name.
58  const char* pass_name_;
59
60  DISALLOW_COPY_AND_ASSIGN(HOptimization);
61};
62
63}  // namespace art
64
65#endif  // ART_COMPILER_OPTIMIZING_OPTIMIZATION_H_
66