1 /* 2 * Copyright (C) 2015 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_SHARPENING_H_ 18 #define ART_COMPILER_OPTIMIZING_SHARPENING_H_ 19 20 #include "optimization.h" 21 22 namespace art { 23 24 class CodeGenerator; 25 class CompilerDriver; 26 class DexCompilationUnit; 27 class HInvokeStaticOrDirect; 28 29 // Optimization that tries to improve the way we dispatch methods and access types, 30 // fields, etc. Besides actual method sharpening based on receiver type (for example 31 // virtual->direct), this includes selecting the best available dispatch for 32 // invoke-static/-direct based on code generator support. 33 class HSharpening : public HOptimization { 34 public: HSharpening(HGraph * graph,CodeGenerator * codegen,const DexCompilationUnit & compilation_unit,CompilerDriver * compiler_driver)35 HSharpening(HGraph* graph, 36 CodeGenerator* codegen, 37 const DexCompilationUnit& compilation_unit, 38 CompilerDriver* compiler_driver) 39 : HOptimization(graph, kSharpeningPassName), 40 codegen_(codegen), 41 compilation_unit_(compilation_unit), 42 compiler_driver_(compiler_driver) { } 43 44 void Run() OVERRIDE; 45 46 static constexpr const char* kSharpeningPassName = "sharpening"; 47 48 private: 49 void ProcessInvokeStaticOrDirect(HInvokeStaticOrDirect* invoke); 50 void ProcessLoadString(HLoadString* load_string); 51 52 CodeGenerator* codegen_; 53 const DexCompilationUnit& compilation_unit_; 54 CompilerDriver* compiler_driver_; 55 }; 56 57 } // namespace art 58 59 #endif // ART_COMPILER_OPTIMIZING_SHARPENING_H_ 60