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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ART_COMPILER_OPTIMIZING_BUILDER_H_
#define ART_COMPILER_OPTIMIZING_BUILDER_H_
#include "utils/allocation.h"
namespace art {
class ArenaAllocator;
class Instruction;
class HBasicBlock;
class HGraph;
class HGraphBuilder : public ValueObject {
public:
explicit HGraphBuilder(ArenaAllocator* arena)
: arena_(arena),
entry_block_(nullptr),
exit_block_(nullptr),
current_block_(nullptr),
graph_(nullptr) { }
HGraph* BuildGraph(const uint16_t* start, const uint16_t* end);
private:
// Analyzes the dex instruction and adds HInstruction to the graph
// to execute that instruction. Returns whether the instruction can
// be handled.
bool AnalyzeDexInstruction(const Instruction& instruction);
ArenaAllocator* const arena_;
HBasicBlock* entry_block_;
HBasicBlock* exit_block_;
HBasicBlock* current_block_;
HGraph* graph_;
DISALLOW_COPY_AND_ASSIGN(HGraphBuilder);
};
} // namespace art
#endif // ART_COMPILER_OPTIMIZING_BUILDER_H_
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