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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_CODE_GENERATOR_X86_H_
#define ART_COMPILER_OPTIMIZING_CODE_GENERATOR_X86_H_
#include "code_generator.h"
#include "nodes.h"
#include "utils/x86/assembler_x86.h"
namespace art {
namespace x86 {
static constexpr size_t kX86WordSize = 4;
class LocationsBuilderX86 : public HGraphVisitor {
public:
explicit LocationsBuilderX86(HGraph* graph) : HGraphVisitor(graph) { }
#define DECLARE_VISIT_INSTRUCTION(name) \
virtual void Visit##name(H##name* instr);
FOR_EACH_INSTRUCTION(DECLARE_VISIT_INSTRUCTION)
#undef DECLARE_VISIT_INSTRUCTION
private:
DISALLOW_COPY_AND_ASSIGN(LocationsBuilderX86);
};
class CodeGeneratorX86;
class InstructionCodeGeneratorX86 : public HGraphVisitor {
public:
InstructionCodeGeneratorX86(HGraph* graph, CodeGeneratorX86* codegen);
#define DECLARE_VISIT_INSTRUCTION(name) \
virtual void Visit##name(H##name* instr);
FOR_EACH_INSTRUCTION(DECLARE_VISIT_INSTRUCTION)
#undef DECLARE_VISIT_INSTRUCTION
void LoadCurrentMethod(Register reg);
X86Assembler* GetAssembler() const { return assembler_; }
private:
X86Assembler* const assembler_;
CodeGeneratorX86* const codegen_;
DISALLOW_COPY_AND_ASSIGN(InstructionCodeGeneratorX86);
};
class CodeGeneratorX86 : public CodeGenerator {
public:
explicit CodeGeneratorX86(HGraph* graph)
: CodeGenerator(graph),
location_builder_(graph),
instruction_visitor_(graph, this) { }
virtual ~CodeGeneratorX86() { }
virtual void GenerateFrameEntry() OVERRIDE;
virtual void GenerateFrameExit() OVERRIDE;
virtual void Bind(Label* label) OVERRIDE;
virtual void Move(HInstruction* instruction, Location location, HInstruction* move_for) OVERRIDE;
virtual size_t GetWordSize() const OVERRIDE {
return kX86WordSize;
}
virtual HGraphVisitor* GetLocationBuilder() OVERRIDE {
return &location_builder_;
}
virtual HGraphVisitor* GetInstructionVisitor() OVERRIDE {
return &instruction_visitor_;
}
virtual X86Assembler* GetAssembler() OVERRIDE {
return &assembler_;
}
int32_t GetStackSlot(HLocal* local) const;
private:
LocationsBuilderX86 location_builder_;
InstructionCodeGeneratorX86 instruction_visitor_;
X86Assembler assembler_;
DISALLOW_COPY_AND_ASSIGN(CodeGeneratorX86);
};
} // namespace x86
} // namespace art
#endif // ART_COMPILER_OPTIMIZING_CODE_GENERATOR_X86_H_
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