73 lines
2.6 KiB
C++
73 lines
2.6 KiB
C++
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_COMPILER_OPTIMIZING_SHARPENING_H_
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#define ART_COMPILER_OPTIMIZING_SHARPENING_H_
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#include "nodes.h"
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#include "optimization.h"
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namespace art {
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class CodeGenerator;
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class CompilerDriver;
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class DexCompilationUnit;
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// Optimization that tries to improve the way we dispatch methods and access types,
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// fields, etc. Besides actual method sharpening based on receiver type (for example
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// virtual->direct), this includes selecting the best available dispatch for
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// invoke-static/-direct based on code generator support.
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class HSharpening : public HOptimization {
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public:
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HSharpening(HGraph* graph,
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CodeGenerator* codegen,
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const DexCompilationUnit& compilation_unit,
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CompilerDriver* compiler_driver,
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VariableSizedHandleScope* handles)
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: HOptimization(graph, kSharpeningPassName),
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codegen_(codegen),
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compilation_unit_(compilation_unit),
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compiler_driver_(compiler_driver),
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handles_(handles) { }
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void Run() OVERRIDE;
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static constexpr const char* kSharpeningPassName = "sharpening";
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// Used by the builder and the inliner.
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static HLoadClass::LoadKind ComputeLoadClassKind(HLoadClass* load_class,
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CodeGenerator* codegen,
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CompilerDriver* compiler_driver,
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const DexCompilationUnit& dex_compilation_unit)
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REQUIRES_SHARED(Locks::mutator_lock_);
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// Used by Sharpening and InstructionSimplifier.
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static void SharpenInvokeStaticOrDirect(HInvokeStaticOrDirect* invoke,
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CodeGenerator* codegen,
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CompilerDriver* compiler_driver);
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private:
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void ProcessLoadString(HLoadString* load_string);
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CodeGenerator* codegen_;
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const DexCompilationUnit& compilation_unit_;
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CompilerDriver* compiler_driver_;
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VariableSizedHandleScope* handles_;
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};
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} // namespace art
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#endif // ART_COMPILER_OPTIMIZING_SHARPENING_H_
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