Nicolas Geoffray | 3c04974 | 2014-09-24 18:10:46 +0100 | [diff] [blame] | 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_INSTRUCTION_SIMPLIFIER_H_ |
| 18 | #define ART_COMPILER_OPTIMIZING_INSTRUCTION_SIMPLIFIER_H_ |
| 19 | |
| 20 | #include "nodes.h" |
Nicolas Geoffray | 5e6916c | 2014-11-18 16:53:35 +0000 | [diff] [blame] | 21 | #include "optimization.h" |
Calin Juravle | acf735c | 2015-02-12 15:25:22 +0000 | [diff] [blame] | 22 | #include "optimizing_compiler_stats.h" |
Nicolas Geoffray | 3c04974 | 2014-09-24 18:10:46 +0100 | [diff] [blame] | 23 | |
| 24 | namespace art { |
| 25 | |
Nicolas Geoffray | c4aa82c | 2017-03-06 14:38:52 +0000 | [diff] [blame] | 26 | class CodeGenerator; |
Vladimir Marko | 6597946 | 2017-05-19 17:25:12 +0100 | [diff] [blame] | 27 | class CompilerDriver; |
Nicolas Geoffray | c4aa82c | 2017-03-06 14:38:52 +0000 | [diff] [blame] | 28 | |
Nicolas Geoffray | 3c04974 | 2014-09-24 18:10:46 +0100 | [diff] [blame] | 29 | /** |
| 30 | * Implements optimizations specific to each instruction. |
Roland Levillain | 1252e97 | 2015-08-06 15:46:02 +0100 | [diff] [blame] | 31 | * |
| 32 | * Note that graph simplifications producing a constant should be |
| 33 | * implemented in art::HConstantFolding, while graph simplifications |
| 34 | * not producing constants should be implemented in |
| 35 | * art::InstructionSimplifier. (This convention is a choice that was |
| 36 | * made during the development of these parts of the compiler and is |
| 37 | * not bound by any technical requirement.) |
Nicolas Geoffray | 3c04974 | 2014-09-24 18:10:46 +0100 | [diff] [blame] | 38 | */ |
Nicolas Geoffray | 5e6916c | 2014-11-18 16:53:35 +0000 | [diff] [blame] | 39 | class InstructionSimplifier : public HOptimization { |
Nicolas Geoffray | 3c04974 | 2014-09-24 18:10:46 +0100 | [diff] [blame] | 40 | public: |
Vladimir Marko | 6597946 | 2017-05-19 17:25:12 +0100 | [diff] [blame] | 41 | InstructionSimplifier(HGraph* graph, |
| 42 | CodeGenerator* codegen, |
| 43 | CompilerDriver* compiler_driver, |
| 44 | OptimizingCompilerStats* stats = nullptr, |
| 45 | const char* name = kInstructionSimplifierPassName) |
Nicolas Geoffray | c4aa82c | 2017-03-06 14:38:52 +0000 | [diff] [blame] | 46 | : HOptimization(graph, name, stats), |
Vladimir Marko | 6597946 | 2017-05-19 17:25:12 +0100 | [diff] [blame] | 47 | codegen_(codegen), |
| 48 | compiler_driver_(compiler_driver) {} |
Nicolas Geoffray | 3c04974 | 2014-09-24 18:10:46 +0100 | [diff] [blame] | 49 | |
Andreas Gampe | 7c3952f | 2015-02-19 18:21:24 -0800 | [diff] [blame] | 50 | static constexpr const char* kInstructionSimplifierPassName = "instruction_simplifier"; |
| 51 | |
Aart Bik | 2477320 | 2018-04-26 10:28:51 -0700 | [diff] [blame] | 52 | bool Run() OVERRIDE; |
Vladimir Marko | a3a3c59 | 2015-06-12 14:30:53 +0100 | [diff] [blame] | 53 | |
| 54 | private: |
Nicolas Geoffray | c4aa82c | 2017-03-06 14:38:52 +0000 | [diff] [blame] | 55 | CodeGenerator* codegen_; |
Vladimir Marko | 6597946 | 2017-05-19 17:25:12 +0100 | [diff] [blame] | 56 | CompilerDriver* compiler_driver_; |
Nicolas Geoffray | c4aa82c | 2017-03-06 14:38:52 +0000 | [diff] [blame] | 57 | |
Vladimir Marko | a3a3c59 | 2015-06-12 14:30:53 +0100 | [diff] [blame] | 58 | DISALLOW_COPY_AND_ASSIGN(InstructionSimplifier); |
Nicolas Geoffray | 3c04974 | 2014-09-24 18:10:46 +0100 | [diff] [blame] | 59 | }; |
| 60 | |
| 61 | } // namespace art |
| 62 | |
| 63 | #endif // ART_COMPILER_OPTIMIZING_INSTRUCTION_SIMPLIFIER_H_ |