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 "base/arena_object.h"
21 #include "nodes.h"
22 #include "optimizing_compiler_stats.h"
23 
24 namespace art {
25 
26 /**
27  * Abstraction to implement an optimization pass.
28  */
29 class HOptimization : public ArenaObject<kArenaAllocOptimization> {
30  public:
31   HOptimization(HGraph* graph,
32                 const char* pass_name,
33                 OptimizingCompilerStats* stats = nullptr)
graph_(graph)34       : graph_(graph),
35         stats_(stats),
36         pass_name_(pass_name) {}
37 
~HOptimization()38   virtual ~HOptimization() {}
39 
40   // Return the name of the pass.
GetPassName()41   const char* GetPassName() const { return pass_name_; }
42 
43   // Perform the analysis itself.
44   virtual void Run() = 0;
45 
46  protected:
47   void MaybeRecordStat(MethodCompilationStat compilation_stat, size_t count = 1) const;
48 
49   HGraph* const graph_;
50   // Used to record stats about the optimization.
51   OptimizingCompilerStats* const stats_;
52 
53  private:
54   // Optimization pass name.
55   const char* pass_name_;
56 
57   DISALLOW_COPY_AND_ASSIGN(HOptimization);
58 };
59 
60 }  // namespace art
61 
62 #endif  // ART_COMPILER_OPTIMIZING_OPTIMIZATION_H_
63