code_generator_x86_64.h revision 56b9ee6fe1d6880c5fca0e7feb28b25a1ded2e2f
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_CODE_GENERATOR_X86_64_H_ 18#define ART_COMPILER_OPTIMIZING_CODE_GENERATOR_X86_64_H_ 19 20#include "code_generator.h" 21#include "nodes.h" 22#include "parallel_move_resolver.h" 23#include "utils/x86_64/assembler_x86_64.h" 24 25namespace art { 26namespace x86_64 { 27 28static constexpr size_t kX86_64WordSize = 8; 29 30static constexpr Register kParameterCoreRegisters[] = { RSI, RDX, RCX, R8, R9 }; 31static constexpr FloatRegister kParameterFloatRegisters[] = 32 { XMM0, XMM1, XMM2, XMM3, XMM4, XMM5, XMM6, XMM7 }; 33 34static constexpr size_t kParameterCoreRegistersLength = arraysize(kParameterCoreRegisters); 35static constexpr size_t kParameterFloatRegistersLength = arraysize(kParameterFloatRegisters); 36 37class InvokeDexCallingConvention : public CallingConvention<Register, FloatRegister> { 38 public: 39 InvokeDexCallingConvention() : CallingConvention( 40 kParameterCoreRegisters, 41 kParameterCoreRegistersLength, 42 kParameterFloatRegisters, 43 kParameterFloatRegistersLength) {} 44 45 private: 46 DISALLOW_COPY_AND_ASSIGN(InvokeDexCallingConvention); 47}; 48 49class InvokeDexCallingConventionVisitor { 50 public: 51 InvokeDexCallingConventionVisitor() : gp_index_(0), fp_index_(0), stack_index_(0) {} 52 53 Location GetNextLocation(Primitive::Type type); 54 55 private: 56 InvokeDexCallingConvention calling_convention; 57 // The current index for cpu registers. 58 uint32_t gp_index_; 59 // The current index for fpu registers. 60 uint32_t fp_index_; 61 // The current stack index. 62 uint32_t stack_index_; 63 64 DISALLOW_COPY_AND_ASSIGN(InvokeDexCallingConventionVisitor); 65}; 66 67class CodeGeneratorX86_64; 68 69class ParallelMoveResolverX86_64 : public ParallelMoveResolver { 70 public: 71 ParallelMoveResolverX86_64(ArenaAllocator* allocator, CodeGeneratorX86_64* codegen) 72 : ParallelMoveResolver(allocator), codegen_(codegen) {} 73 74 virtual void EmitMove(size_t index) OVERRIDE; 75 virtual void EmitSwap(size_t index) OVERRIDE; 76 virtual void SpillScratch(int reg) OVERRIDE; 77 virtual void RestoreScratch(int reg) OVERRIDE; 78 79 X86_64Assembler* GetAssembler() const; 80 81 private: 82 void Exchange32(CpuRegister reg, int mem); 83 void Exchange32(int mem1, int mem2); 84 void Exchange64(CpuRegister reg, int mem); 85 void Exchange64(int mem1, int mem2); 86 87 CodeGeneratorX86_64* const codegen_; 88 89 DISALLOW_COPY_AND_ASSIGN(ParallelMoveResolverX86_64); 90}; 91 92class LocationsBuilderX86_64 : public HGraphVisitor { 93 public: 94 LocationsBuilderX86_64(HGraph* graph, CodeGeneratorX86_64* codegen) 95 : HGraphVisitor(graph), codegen_(codegen) {} 96 97#define DECLARE_VISIT_INSTRUCTION(name) \ 98 virtual void Visit##name(H##name* instr); 99 100 FOR_EACH_CONCRETE_INSTRUCTION(DECLARE_VISIT_INSTRUCTION) 101 102#undef DECLARE_VISIT_INSTRUCTION 103 104 void HandleInvoke(HInvoke* invoke); 105 106 private: 107 CodeGeneratorX86_64* const codegen_; 108 InvokeDexCallingConventionVisitor parameter_visitor_; 109 110 DISALLOW_COPY_AND_ASSIGN(LocationsBuilderX86_64); 111}; 112 113class InstructionCodeGeneratorX86_64 : public HGraphVisitor { 114 public: 115 InstructionCodeGeneratorX86_64(HGraph* graph, CodeGeneratorX86_64* codegen); 116 117#define DECLARE_VISIT_INSTRUCTION(name) \ 118 virtual void Visit##name(H##name* instr); 119 120 FOR_EACH_CONCRETE_INSTRUCTION(DECLARE_VISIT_INSTRUCTION) 121 122#undef DECLARE_VISIT_INSTRUCTION 123 124 void LoadCurrentMethod(CpuRegister reg); 125 126 X86_64Assembler* GetAssembler() const { return assembler_; } 127 128 private: 129 // Generate code for the given suspend check. If not null, `successor` 130 // is the block to branch to if the suspend check is not needed, and after 131 // the suspend call. 132 void GenerateSuspendCheck(HSuspendCheck* instruction, HBasicBlock* successor); 133 134 X86_64Assembler* const assembler_; 135 CodeGeneratorX86_64* const codegen_; 136 137 DISALLOW_COPY_AND_ASSIGN(InstructionCodeGeneratorX86_64); 138}; 139 140class CodeGeneratorX86_64 : public CodeGenerator { 141 public: 142 explicit CodeGeneratorX86_64(HGraph* graph); 143 virtual ~CodeGeneratorX86_64() {} 144 145 virtual void GenerateFrameEntry() OVERRIDE; 146 virtual void GenerateFrameExit() OVERRIDE; 147 virtual void Bind(Label* label) OVERRIDE; 148 virtual void Move(HInstruction* instruction, Location location, HInstruction* move_for) OVERRIDE; 149 virtual void SaveCoreRegister(Location stack_location, uint32_t reg_id) OVERRIDE; 150 virtual void RestoreCoreRegister(Location stack_location, uint32_t reg_id) OVERRIDE; 151 152 virtual size_t GetWordSize() const OVERRIDE { 153 return kX86_64WordSize; 154 } 155 156 virtual size_t FrameEntrySpillSize() const OVERRIDE; 157 158 virtual HGraphVisitor* GetLocationBuilder() OVERRIDE { 159 return &location_builder_; 160 } 161 162 virtual HGraphVisitor* GetInstructionVisitor() OVERRIDE { 163 return &instruction_visitor_; 164 } 165 166 virtual X86_64Assembler* GetAssembler() OVERRIDE { 167 return &assembler_; 168 } 169 170 ParallelMoveResolverX86_64* GetMoveResolver() { 171 return &move_resolver_; 172 } 173 174 virtual Location GetStackLocation(HLoadLocal* load) const OVERRIDE; 175 176 virtual size_t GetNumberOfRegisters() const OVERRIDE { 177 return kNumberOfRegIds; 178 } 179 180 virtual size_t GetNumberOfCoreRegisters() const OVERRIDE { 181 return kNumberOfCpuRegisters; 182 } 183 184 virtual size_t GetNumberOfFloatingPointRegisters() const OVERRIDE { 185 return kNumberOfFloatRegisters; 186 } 187 188 virtual void SetupBlockedRegisters(bool* blocked_registers) const OVERRIDE; 189 virtual Location AllocateFreeRegister( 190 Primitive::Type type, bool* blocked_registers) const OVERRIDE; 191 virtual void DumpCoreRegister(std::ostream& stream, int reg) const OVERRIDE; 192 virtual void DumpFloatingPointRegister(std::ostream& stream, int reg) const OVERRIDE; 193 194 virtual InstructionSet GetInstructionSet() const OVERRIDE { 195 return InstructionSet::kX86_64; 196 } 197 198 // Emit a write barrier. 199 void MarkGCCard(CpuRegister temp, CpuRegister card, CpuRegister object, CpuRegister value); 200 201 // Helper method to move a value between two locations. 202 void Move(Location destination, Location source); 203 204 private: 205 LocationsBuilderX86_64 location_builder_; 206 InstructionCodeGeneratorX86_64 instruction_visitor_; 207 ParallelMoveResolverX86_64 move_resolver_; 208 X86_64Assembler assembler_; 209 210 DISALLOW_COPY_AND_ASSIGN(CodeGeneratorX86_64); 211}; 212 213} // namespace x86_64 214} // namespace art 215 216#endif // ART_COMPILER_OPTIMIZING_CODE_GENERATOR_X86_64_H_ 217