codegen_arm.h revision bebee4fd10e5db6cb07f59bc0f73297c900ea5f0
1/* 2 * Copyright (C) 2011 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_DEX_QUICK_ARM_CODEGEN_ARM_H_ 18#define ART_COMPILER_DEX_QUICK_ARM_CODEGEN_ARM_H_ 19 20#include "arm_lir.h" 21#include "dex/compiler_internals.h" 22 23namespace art { 24 25class ArmMir2Lir FINAL : public Mir2Lir { 26 public: 27 ArmMir2Lir(CompilationUnit* cu, MIRGraph* mir_graph, ArenaAllocator* arena); 28 29 // Required for target - codegen helpers. 30 bool SmallLiteralDivRem(Instruction::Code dalvik_opcode, bool is_div, RegLocation rl_src, 31 RegLocation rl_dest, int lit); 32 bool EasyMultiply(RegLocation rl_src, RegLocation rl_dest, int lit) OVERRIDE; 33 LIR* CheckSuspendUsingLoad() OVERRIDE; 34 RegStorage LoadHelper(ThreadOffset<4> offset) OVERRIDE; 35 RegStorage LoadHelper(ThreadOffset<8> offset) OVERRIDE; 36 LIR* LoadBaseDisp(RegStorage r_base, int displacement, RegStorage r_dest, 37 OpSize size, VolatileKind is_volatile) OVERRIDE; 38 LIR* LoadBaseIndexed(RegStorage r_base, RegStorage r_index, RegStorage r_dest, int scale, 39 OpSize size) OVERRIDE; 40 LIR* LoadBaseIndexedDisp(RegStorage r_base, RegStorage r_index, int scale, int displacement, 41 RegStorage r_dest, OpSize size) OVERRIDE; 42 LIR* LoadConstantNoClobber(RegStorage r_dest, int value); 43 LIR* LoadConstantWide(RegStorage r_dest, int64_t value); 44 LIR* StoreBaseDisp(RegStorage r_base, int displacement, RegStorage r_src, 45 OpSize size, VolatileKind is_volatile) OVERRIDE; 46 LIR* StoreBaseIndexed(RegStorage r_base, RegStorage r_index, RegStorage r_src, int scale, 47 OpSize size) OVERRIDE; 48 LIR* StoreBaseIndexedDisp(RegStorage r_base, RegStorage r_index, int scale, int displacement, 49 RegStorage r_src, OpSize size) OVERRIDE; 50 void MarkGCCard(RegStorage val_reg, RegStorage tgt_addr_reg); 51 52 // Required for target - register utilities. 53 RegStorage TargetReg(SpecialTargetRegister reg); 54 RegStorage GetArgMappingToPhysicalReg(int arg_num); 55 RegLocation GetReturnAlt(); 56 RegLocation GetReturnWideAlt(); 57 RegLocation LocCReturn(); 58 RegLocation LocCReturnRef(); 59 RegLocation LocCReturnDouble(); 60 RegLocation LocCReturnFloat(); 61 RegLocation LocCReturnWide(); 62 ResourceMask GetRegMaskCommon(const RegStorage& reg) const OVERRIDE; 63 void AdjustSpillMask(); 64 void ClobberCallerSave(); 65 void FreeCallTemps(); 66 void LockCallTemps(); 67 void MarkPreservedSingle(int v_reg, RegStorage reg); 68 void MarkPreservedDouble(int v_reg, RegStorage reg); 69 void CompilerInitializeRegAlloc(); 70 71 // Required for target - miscellaneous. 72 void AssembleLIR(); 73 uint32_t LinkFixupInsns(LIR* head_lir, LIR* tail_lir, CodeOffset offset); 74 int AssignInsnOffsets(); 75 void AssignOffsets(); 76 static uint8_t* EncodeLIRs(uint8_t* write_pos, LIR* lir); 77 void DumpResourceMask(LIR* lir, const ResourceMask& mask, const char* prefix) OVERRIDE; 78 void SetupTargetResourceMasks(LIR* lir, uint64_t flags, 79 ResourceMask* use_mask, ResourceMask* def_mask) OVERRIDE; 80 const char* GetTargetInstFmt(int opcode); 81 const char* GetTargetInstName(int opcode); 82 std::string BuildInsnString(const char* fmt, LIR* lir, unsigned char* base_addr); 83 ResourceMask GetPCUseDefEncoding() const OVERRIDE; 84 uint64_t GetTargetInstFlags(int opcode); 85 size_t GetInsnSize(LIR* lir) OVERRIDE; 86 bool IsUnconditionalBranch(LIR* lir); 87 88 // Check support for volatile load/store of a given size. 89 bool SupportsVolatileLoadStore(OpSize size) OVERRIDE; 90 // Get the register class for load/store of a field. 91 RegisterClass RegClassForFieldLoadStore(OpSize size, bool is_volatile) OVERRIDE; 92 93 // Required for target - Dalvik-level generators. 94 void GenArithImmOpLong(Instruction::Code opcode, RegLocation rl_dest, 95 RegLocation rl_src1, RegLocation rl_src2); 96 void GenArrayGet(int opt_flags, OpSize size, RegLocation rl_array, 97 RegLocation rl_index, RegLocation rl_dest, int scale); 98 void GenArrayPut(int opt_flags, OpSize size, RegLocation rl_array, RegLocation rl_index, 99 RegLocation rl_src, int scale, bool card_mark); 100 void GenShiftImmOpLong(Instruction::Code opcode, RegLocation rl_dest, 101 RegLocation rl_src1, RegLocation rl_shift); 102 void GenMulLong(Instruction::Code opcode, RegLocation rl_dest, RegLocation rl_src1, 103 RegLocation rl_src2); 104 void GenAddLong(Instruction::Code opcode, RegLocation rl_dest, RegLocation rl_src1, 105 RegLocation rl_src2); 106 void GenAndLong(Instruction::Code opcode, RegLocation rl_dest, RegLocation rl_src1, 107 RegLocation rl_src2); 108 void GenArithOpDouble(Instruction::Code opcode, RegLocation rl_dest, RegLocation rl_src1, 109 RegLocation rl_src2); 110 void GenArithOpFloat(Instruction::Code opcode, RegLocation rl_dest, RegLocation rl_src1, 111 RegLocation rl_src2); 112 void GenCmpFP(Instruction::Code opcode, RegLocation rl_dest, RegLocation rl_src1, 113 RegLocation rl_src2); 114 void GenConversion(Instruction::Code opcode, RegLocation rl_dest, RegLocation rl_src); 115 bool GenInlinedAbsFloat(CallInfo* info) OVERRIDE; 116 bool GenInlinedAbsDouble(CallInfo* info) OVERRIDE; 117 bool GenInlinedCas(CallInfo* info, bool is_long, bool is_object); 118 bool GenInlinedMinMax(CallInfo* info, bool is_min, bool is_long); 119 bool GenInlinedSqrt(CallInfo* info); 120 bool GenInlinedPeek(CallInfo* info, OpSize size); 121 bool GenInlinedPoke(CallInfo* info, OpSize size); 122 void GenNotLong(RegLocation rl_dest, RegLocation rl_src); 123 void GenNegLong(RegLocation rl_dest, RegLocation rl_src); 124 void GenOrLong(Instruction::Code opcode, RegLocation rl_dest, RegLocation rl_src1, 125 RegLocation rl_src2); 126 void GenSubLong(Instruction::Code opcode, RegLocation rl_dest, RegLocation rl_src1, 127 RegLocation rl_src2); 128 void GenXorLong(Instruction::Code opcode, RegLocation rl_dest, RegLocation rl_src1, 129 RegLocation rl_src2); 130 void GenDivRemLong(Instruction::Code, RegLocation rl_dest, RegLocation rl_src1, 131 RegLocation rl_src2, bool is_div); 132 RegLocation GenDivRem(RegLocation rl_dest, RegStorage reg_lo, RegStorage reg_hi, bool is_div); 133 RegLocation GenDivRemLit(RegLocation rl_dest, RegStorage reg_lo, int lit, bool is_div); 134 void GenCmpLong(RegLocation rl_dest, RegLocation rl_src1, RegLocation rl_src2); 135 void GenDivZeroCheckWide(RegStorage reg); 136 void GenEntrySequence(RegLocation* ArgLocs, RegLocation rl_method); 137 void GenExitSequence(); 138 void GenSpecialExitSequence(); 139 void GenFillArrayData(DexOffset table_offset, RegLocation rl_src); 140 void GenFusedFPCmpBranch(BasicBlock* bb, MIR* mir, bool gt_bias, bool is_double); 141 void GenFusedLongCmpBranch(BasicBlock* bb, MIR* mir); 142 void GenSelect(BasicBlock* bb, MIR* mir); 143 void GenSelectConst32(RegStorage left_op, RegStorage right_op, ConditionCode code, 144 int32_t true_val, int32_t false_val, RegStorage rs_dest, 145 int dest_reg_class) OVERRIDE; 146 bool GenMemBarrier(MemBarrierKind barrier_kind); 147 void GenMonitorEnter(int opt_flags, RegLocation rl_src); 148 void GenMonitorExit(int opt_flags, RegLocation rl_src); 149 void GenMoveException(RegLocation rl_dest); 150 void GenMultiplyByTwoBitMultiplier(RegLocation rl_src, RegLocation rl_result, int lit, 151 int first_bit, int second_bit); 152 void GenNegDouble(RegLocation rl_dest, RegLocation rl_src); 153 void GenNegFloat(RegLocation rl_dest, RegLocation rl_src); 154 void GenPackedSwitch(MIR* mir, DexOffset table_offset, RegLocation rl_src); 155 void GenSparseSwitch(MIR* mir, DexOffset table_offset, RegLocation rl_src); 156 157 // Required for target - single operation generators. 158 LIR* OpUnconditionalBranch(LIR* target); 159 LIR* OpCmpBranch(ConditionCode cond, RegStorage src1, RegStorage src2, LIR* target); 160 LIR* OpCmpImmBranch(ConditionCode cond, RegStorage reg, int check_value, LIR* target); 161 LIR* OpCondBranch(ConditionCode cc, LIR* target); 162 LIR* OpDecAndBranch(ConditionCode c_code, RegStorage reg, LIR* target); 163 LIR* OpFpRegCopy(RegStorage r_dest, RegStorage r_src); 164 LIR* OpIT(ConditionCode cond, const char* guide); 165 void UpdateIT(LIR* it, const char* new_guide); 166 void OpEndIT(LIR* it); 167 LIR* OpMem(OpKind op, RegStorage r_base, int disp); 168 LIR* OpPcRelLoad(RegStorage reg, LIR* target); 169 LIR* OpReg(OpKind op, RegStorage r_dest_src); 170 void OpRegCopy(RegStorage r_dest, RegStorage r_src); 171 LIR* OpRegCopyNoInsert(RegStorage r_dest, RegStorage r_src); 172 LIR* OpRegImm(OpKind op, RegStorage r_dest_src1, int value); 173 LIR* OpRegMem(OpKind op, RegStorage r_dest, RegStorage r_base, int offset); 174 LIR* OpRegReg(OpKind op, RegStorage r_dest_src1, RegStorage r_src2); 175 LIR* OpMovRegMem(RegStorage r_dest, RegStorage r_base, int offset, MoveType move_type); 176 LIR* OpMovMemReg(RegStorage r_base, int offset, RegStorage r_src, MoveType move_type); 177 LIR* OpCondRegReg(OpKind op, ConditionCode cc, RegStorage r_dest, RegStorage r_src); 178 LIR* OpRegRegImm(OpKind op, RegStorage r_dest, RegStorage r_src1, int value); 179 LIR* OpRegRegReg(OpKind op, RegStorage r_dest, RegStorage r_src1, RegStorage r_src2); 180 LIR* OpTestSuspend(LIR* target); 181 LIR* OpThreadMem(OpKind op, ThreadOffset<4> thread_offset) OVERRIDE; 182 LIR* OpThreadMem(OpKind op, ThreadOffset<8> thread_offset) OVERRIDE; 183 LIR* OpVldm(RegStorage r_base, int count); 184 LIR* OpVstm(RegStorage r_base, int count); 185 void OpLea(RegStorage r_base, RegStorage reg1, RegStorage reg2, int scale, int offset); 186 void OpRegCopyWide(RegStorage dest, RegStorage src); 187 void OpTlsCmp(ThreadOffset<4> offset, int val) OVERRIDE; 188 void OpTlsCmp(ThreadOffset<8> offset, int val) OVERRIDE; 189 190 LIR* LoadBaseDispBody(RegStorage r_base, int displacement, RegStorage r_dest, OpSize size); 191 LIR* StoreBaseDispBody(RegStorage r_base, int displacement, RegStorage r_src, OpSize size); 192 LIR* OpRegRegRegShift(OpKind op, RegStorage r_dest, RegStorage r_src1, RegStorage r_src2, 193 int shift); 194 LIR* OpRegRegShift(OpKind op, RegStorage r_dest_src1, RegStorage r_src2, int shift); 195 static const ArmEncodingMap EncodingMap[kArmLast]; 196 int EncodeShift(int code, int amount); 197 int ModifiedImmediate(uint32_t value); 198 ArmConditionCode ArmConditionEncoding(ConditionCode code); 199 bool InexpensiveConstantInt(int32_t value); 200 bool InexpensiveConstantFloat(int32_t value); 201 bool InexpensiveConstantLong(int64_t value); 202 bool InexpensiveConstantDouble(int64_t value); 203 RegStorage AllocPreservedDouble(int s_reg); 204 RegStorage AllocPreservedSingle(int s_reg); 205 206 bool WideGPRsAreAliases() OVERRIDE { 207 return false; // Wide GPRs are formed by pairing. 208 } 209 bool WideFPRsAreAliases() OVERRIDE { 210 return false; // Wide FPRs are formed by pairing. 211 } 212 213 private: 214 void GenFusedLongCmpImmBranch(BasicBlock* bb, RegLocation rl_src1, int64_t val, 215 ConditionCode ccode); 216 LIR* LoadFPConstantValue(int r_dest, int value); 217 LIR* LoadStoreUsingInsnWithOffsetImm8Shl2(ArmOpcode opcode, RegStorage r_base, 218 int displacement, RegStorage r_src_dest, 219 RegStorage r_work = RegStorage::InvalidReg()); 220 void ReplaceFixup(LIR* prev_lir, LIR* orig_lir, LIR* new_lir); 221 void InsertFixupBefore(LIR* prev_lir, LIR* orig_lir, LIR* new_lir); 222 void AssignDataOffsets(); 223 RegLocation GenDivRem(RegLocation rl_dest, RegLocation rl_src1, RegLocation rl_src2, 224 bool is_div, bool check_zero); 225 RegLocation GenDivRemLit(RegLocation rl_dest, RegLocation rl_src1, int lit, bool is_div); 226 typedef struct { 227 OpKind op; 228 uint32_t shift; 229 } EasyMultiplyOp; 230 bool GetEasyMultiplyOp(int lit, EasyMultiplyOp* op); 231 bool GetEasyMultiplyTwoOps(int lit, EasyMultiplyOp* ops); 232 void GenEasyMultiplyTwoOps(RegStorage r_dest, RegStorage r_src, EasyMultiplyOp* ops); 233 234 static constexpr ResourceMask GetRegMaskArm(RegStorage reg); 235 static constexpr ResourceMask EncodeArmRegList(int reg_list); 236 static constexpr ResourceMask EncodeArmRegFpcsList(int reg_list); 237}; 238 239} // namespace art 240 241#endif // ART_COMPILER_DEX_QUICK_ARM_CODEGEN_ARM_H_ 242