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_GVN_H_
18 #define ART_COMPILER_OPTIMIZING_GVN_H_
19 
20 #include "nodes.h"
21 #include "optimization.h"
22 
23 namespace art {
24 
25 class SideEffectsAnalysis;
26 
27 class GVNOptimization : public HOptimization {
28  public:
29   GVNOptimization(HGraph* graph,
30                   const SideEffectsAnalysis& side_effects,
31                   const char* pass_name = kGlobalValueNumberingPassName)
HOptimization(graph,pass_name)32       : HOptimization(graph, pass_name), side_effects_(side_effects) {}
33 
34   bool Run() override;
35 
36   static constexpr const char* kGlobalValueNumberingPassName = "GVN";
37 
38  private:
39   const SideEffectsAnalysis& side_effects_;
40 
41   DISALLOW_COPY_AND_ASSIGN(GVNOptimization);
42 };
43 
44 }  // namespace art
45 
46 #endif  // ART_COMPILER_OPTIMIZING_GVN_H_
47