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      1 //===- Mips64InstrInfo.td - Mips64 Instruction Information -*- tablegen -*-===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 // This file describes Mips64 instructions.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 //===----------------------------------------------------------------------===//
     15 // Mips Operand, Complex Patterns and Transformations Definitions.
     16 //===----------------------------------------------------------------------===//
     17 
     18 // Transformation Function - get Imm - 32.
     19 def Subtract32 : SDNodeXForm<imm, [{
     20   return getImm(N, (unsigned)N->getZExtValue() - 32);
     21 }]>;
     22 
     23 // shamt must fit in 6 bits.
     24 def immZExt6 : ImmLeaf<i32, [{return Imm == (Imm & 0x3f);}]>;
     25 
     26 // Node immediate fits as 10-bit sign extended on target immediate.
     27 // e.g. seqi, snei
     28 def immSExt10_64 : PatLeaf<(i64 imm),
     29                            [{ return isInt<10>(N->getSExtValue()); }]>;
     30 
     31 def immZExt16_64 : PatLeaf<(i64 imm),
     32                            [{ return isUInt<16>(N->getZExtValue()); }]>;
     33 
     34 def immZExt5_64 : ImmLeaf<i64, [{ return Imm == (Imm & 0x1f); }]>;
     35 
     36 // Transformation function: get log2 of low 32 bits of immediate
     37 def Log2LO : SDNodeXForm<imm, [{
     38   return getImm(N, Log2_64((unsigned) N->getZExtValue()));
     39 }]>;
     40 
     41 // Transformation function: get log2 of high 32 bits of immediate
     42 def Log2HI : SDNodeXForm<imm, [{
     43   return getImm(N, Log2_64((unsigned) (N->getZExtValue() >> 32)));
     44 }]>;
     45 
     46 // Predicate: True if immediate is a power of 2 and fits 32 bits
     47 def PowerOf2LO : PatLeaf<(imm), [{
     48   if (N->getValueType(0) == MVT::i64) {
     49     uint64_t Imm = N->getZExtValue();
     50     return isPowerOf2_64(Imm) && (Imm & 0xffffffff) == Imm;
     51   }
     52   else
     53     return false;
     54 }]>;
     55 
     56 // Predicate: True if immediate is a power of 2 and exceeds 32 bits
     57 def PowerOf2HI : PatLeaf<(imm), [{
     58   if (N->getValueType(0) == MVT::i64) {
     59     uint64_t Imm = N->getZExtValue();
     60     return isPowerOf2_64(Imm) && (Imm & 0xffffffff00000000) == Imm;
     61   }
     62   else
     63     return false;
     64 }]>;
     65 
     66 def assertzext_lt_i32 : PatFrag<(ops node:$src), (assertzext node:$src), [{
     67   return cast<VTSDNode>(N->getOperand(1))->getVT().bitsLT(MVT::i32);
     68 }]>;
     69 
     70 //===----------------------------------------------------------------------===//
     71 // Instructions specific format
     72 //===----------------------------------------------------------------------===//
     73 let usesCustomInserter = 1 in {
     74   def ATOMIC_LOAD_ADD_I64  : Atomic2Ops<atomic_load_add_64, GPR64>;
     75   def ATOMIC_LOAD_SUB_I64  : Atomic2Ops<atomic_load_sub_64, GPR64>;
     76   def ATOMIC_LOAD_AND_I64  : Atomic2Ops<atomic_load_and_64, GPR64>;
     77   def ATOMIC_LOAD_OR_I64   : Atomic2Ops<atomic_load_or_64, GPR64>;
     78   def ATOMIC_LOAD_XOR_I64  : Atomic2Ops<atomic_load_xor_64, GPR64>;
     79   def ATOMIC_LOAD_NAND_I64 : Atomic2Ops<atomic_load_nand_64, GPR64>;
     80   def ATOMIC_SWAP_I64      : Atomic2Ops<atomic_swap_64, GPR64>;
     81   def ATOMIC_CMP_SWAP_I64  : AtomicCmpSwap<atomic_cmp_swap_64, GPR64>;
     82 }
     83 
     84 /// Pseudo instructions for loading and storing accumulator registers.
     85 let isPseudo = 1, isCodeGenOnly = 1, hasNoSchedulingInfo = 1 in {
     86   def LOAD_ACC128  : Load<"", ACC128>;
     87   def STORE_ACC128 : Store<"", ACC128>;
     88 }
     89 
     90 //===----------------------------------------------------------------------===//
     91 // Instruction definition
     92 //===----------------------------------------------------------------------===//
     93 let DecoderNamespace = "Mips64" in {
     94 /// Arithmetic Instructions (ALU Immediate)
     95 def DADDi   : ArithLogicI<"daddi", simm16_64, GPR64Opnd, II_DADDI>,
     96               ADDI_FM<0x18>, ISA_MIPS3_NOT_32R6_64R6;
     97 let AdditionalPredicates = [NotInMicroMips] in {
     98   def DADDiu : StdMMR6Rel, ArithLogicI<"daddiu", simm16_64, GPR64Opnd,
     99                                        II_DADDIU, immSExt16, add>,
    100                ADDI_FM<0x19>, IsAsCheapAsAMove, ISA_MIPS3;
    101 }
    102 
    103 let isCodeGenOnly = 1 in {
    104 def SLTi64  : SetCC_I<"slti", setlt, simm16_64, immSExt16, GPR64Opnd>,
    105               SLTI_FM<0xa>;
    106 def SLTiu64 : SetCC_I<"sltiu", setult, simm16_64, immSExt16, GPR64Opnd>,
    107               SLTI_FM<0xb>;
    108 def ANDi64 : ArithLogicI<"andi", uimm16_64, GPR64Opnd, II_AND, immZExt16, and>,
    109              ADDI_FM<0xc>;
    110 def ORi64   : ArithLogicI<"ori", uimm16_64, GPR64Opnd, II_OR, immZExt16, or>,
    111               ADDI_FM<0xd>;
    112 def XORi64  : ArithLogicI<"xori", uimm16_64, GPR64Opnd, II_XOR, immZExt16, xor>,
    113               ADDI_FM<0xe>;
    114 def LUi64   : LoadUpper<"lui", GPR64Opnd, uimm16_64_relaxed>, LUI_FM;
    115 }
    116 
    117 /// Arithmetic Instructions (3-Operand, R-Type)
    118 let AdditionalPredicates = [NotInMicroMips] in {
    119   def DADD   : StdMMR6Rel, ArithLogicR<"dadd", GPR64Opnd, 1, II_DADD>,
    120                ADD_FM<0, 0x2c>, ISA_MIPS3;
    121   def DADDu  : StdMMR6Rel, ArithLogicR<"daddu", GPR64Opnd, 1, II_DADDU, add>,
    122                ADD_FM<0, 0x2d>, ISA_MIPS3;
    123   def DSUBu  : StdMMR6Rel, ArithLogicR<"dsubu", GPR64Opnd, 0, II_DSUBU, sub>, ADD_FM<0, 0x2f>,
    124                ISA_MIPS3;
    125   def DSUB   : StdMMR6Rel, ArithLogicR<"dsub", GPR64Opnd, 0, II_DSUB>, ADD_FM<0, 0x2e>,
    126                ISA_MIPS3;
    127 }
    128 
    129 let isCodeGenOnly = 1 in {
    130 def SLT64  : SetCC_R<"slt", setlt, GPR64Opnd>, ADD_FM<0, 0x2a>;
    131 def SLTu64 : SetCC_R<"sltu", setult, GPR64Opnd>, ADD_FM<0, 0x2b>;
    132 def AND64  : ArithLogicR<"and", GPR64Opnd, 1, II_AND, and>, ADD_FM<0, 0x24>;
    133 def OR64   : ArithLogicR<"or", GPR64Opnd, 1, II_OR, or>, ADD_FM<0, 0x25>;
    134 def XOR64  : ArithLogicR<"xor", GPR64Opnd, 1, II_XOR, xor>, ADD_FM<0, 0x26>;
    135 def NOR64  : LogicNOR<"nor", GPR64Opnd>, ADD_FM<0, 0x27>;
    136 }
    137 
    138 /// Shift Instructions
    139 let AdditionalPredicates = [NotInMicroMips] in {
    140   def DSLL : StdMMR6Rel, shift_rotate_imm<"dsll", uimm6, GPR64Opnd, II_DSLL,
    141                                           shl, immZExt6>,
    142              SRA_FM<0x38, 0>, ISA_MIPS3;
    143   def DSRL : StdMMR6Rel, shift_rotate_imm<"dsrl", uimm6, GPR64Opnd, II_DSRL,
    144                                           srl, immZExt6>,
    145              SRA_FM<0x3a, 0>, ISA_MIPS3;
    146   def DSRA : StdMMR6Rel, shift_rotate_imm<"dsra", uimm6, GPR64Opnd, II_DSRA,
    147                                           sra, immZExt6>,
    148              SRA_FM<0x3b, 0>, ISA_MIPS3;
    149   def DSLLV  : StdMMR6Rel, shift_rotate_reg<"dsllv", GPR64Opnd, II_DSLLV, shl>,
    150                SRLV_FM<0x14, 0>, ISA_MIPS3;
    151   def DSRAV  : StdMMR6Rel, shift_rotate_reg<"dsrav", GPR64Opnd, II_DSRAV, sra>,
    152                SRLV_FM<0x17, 0>, ISA_MIPS3;
    153   def DSRLV  : StdMMR6Rel, shift_rotate_reg<"dsrlv", GPR64Opnd, II_DSRLV, srl>,
    154                SRLV_FM<0x16, 0>, ISA_MIPS3;
    155   def DSLL32 : StdMMR6Rel, shift_rotate_imm<"dsll32", uimm5, GPR64Opnd,
    156                                             II_DSLL32>,
    157                SRA_FM<0x3c, 0>, ISA_MIPS3;
    158   def DSRL32 : StdMMR6Rel, shift_rotate_imm<"dsrl32", uimm5, GPR64Opnd,
    159                                             II_DSRL32>,
    160                SRA_FM<0x3e, 0>, ISA_MIPS3;
    161   def DSRA32 : StdMMR6Rel, shift_rotate_imm<"dsra32", uimm5, GPR64Opnd,
    162                II_DSRA32>,
    163                SRA_FM<0x3f, 0>, ISA_MIPS3;
    164 
    165 // Rotate Instructions
    166   def DROTR  : StdMMR6Rel, shift_rotate_imm<"drotr", uimm6, GPR64Opnd, II_DROTR,
    167                                             rotr, immZExt6>,
    168                SRA_FM<0x3a, 1>, ISA_MIPS64R2;
    169   def DROTRV : StdMMR6Rel, shift_rotate_reg<"drotrv", GPR64Opnd, II_DROTRV,
    170                                             rotr>,
    171                SRLV_FM<0x16, 1>, ISA_MIPS64R2;
    172   def DROTR32 : StdMMR6Rel, shift_rotate_imm<"drotr32", uimm5, GPR64Opnd,
    173                                              II_DROTR32>,
    174                 SRA_FM<0x3e, 1>, ISA_MIPS64R2;
    175 }
    176 
    177 /// Load and Store Instructions
    178 ///  aligned
    179 let isCodeGenOnly = 1 in {
    180 def LB64  : Load<"lb", GPR64Opnd, sextloadi8, II_LB>, LW_FM<0x20>;
    181 def LBu64 : Load<"lbu", GPR64Opnd, zextloadi8, II_LBU>, LW_FM<0x24>;
    182 def LH64  : Load<"lh", GPR64Opnd, sextloadi16, II_LH>, LW_FM<0x21>;
    183 def LHu64 : Load<"lhu", GPR64Opnd, zextloadi16, II_LHU>, LW_FM<0x25>;
    184 def LW64  : Load<"lw", GPR64Opnd, sextloadi32, II_LW>, LW_FM<0x23>;
    185 def SB64  : Store<"sb", GPR64Opnd, truncstorei8, II_SB>, LW_FM<0x28>;
    186 def SH64  : Store<"sh", GPR64Opnd, truncstorei16, II_SH>, LW_FM<0x29>;
    187 def SW64  : Store<"sw", GPR64Opnd, truncstorei32, II_SW>, LW_FM<0x2b>;
    188 }
    189 
    190 let AdditionalPredicates = [NotInMicroMips] in {
    191   def LWu : StdMMR6Rel, MMRel, Load<"lwu", GPR64Opnd, zextloadi32, II_LWU>,
    192             LW_FM<0x27>, ISA_MIPS3;
    193   def LD  : StdMMR6Rel, LoadMemory<"ld", GPR64Opnd, mem_simm16, load, II_LD>,
    194             LW_FM<0x37>, ISA_MIPS3;
    195   def SD  : StdMMR6Rel, StoreMemory<"sd", GPR64Opnd, mem_simm16, store, II_SD>,
    196             LW_FM<0x3f>, ISA_MIPS3;
    197 }
    198 
    199 
    200 
    201 /// load/store left/right
    202 let isCodeGenOnly = 1 in {
    203 def LWL64 : LoadLeftRight<"lwl", MipsLWL, GPR64Opnd, II_LWL>, LW_FM<0x22>;
    204 def LWR64 : LoadLeftRight<"lwr", MipsLWR, GPR64Opnd, II_LWR>, LW_FM<0x26>;
    205 def SWL64 : StoreLeftRight<"swl", MipsSWL, GPR64Opnd, II_SWL>, LW_FM<0x2a>;
    206 def SWR64 : StoreLeftRight<"swr", MipsSWR, GPR64Opnd, II_SWR>, LW_FM<0x2e>;
    207 }
    208 
    209 def LDL   : LoadLeftRight<"ldl", MipsLDL, GPR64Opnd, II_LDL>, LW_FM<0x1a>,
    210             ISA_MIPS3_NOT_32R6_64R6;
    211 def LDR   : LoadLeftRight<"ldr", MipsLDR, GPR64Opnd, II_LDR>, LW_FM<0x1b>,
    212             ISA_MIPS3_NOT_32R6_64R6;
    213 def SDL   : StoreLeftRight<"sdl", MipsSDL, GPR64Opnd, II_SDL>, LW_FM<0x2c>,
    214             ISA_MIPS3_NOT_32R6_64R6;
    215 def SDR   : StoreLeftRight<"sdr", MipsSDR, GPR64Opnd, II_SDR>, LW_FM<0x2d>,
    216             ISA_MIPS3_NOT_32R6_64R6;
    217 
    218 /// Load-linked, Store-conditional
    219 let AdditionalPredicates = [NotInMicroMips] in {
    220   def LLD : StdMMR6Rel, LLBase<"lld", GPR64Opnd, mem_simm16>, LW_FM<0x34>,
    221             ISA_MIPS3_NOT_32R6_64R6;
    222 }
    223 def SCD : SCBase<"scd", GPR64Opnd>, LW_FM<0x3c>, ISA_MIPS3_NOT_32R6_64R6;
    224 
    225 let AdditionalPredicates = [NotInMicroMips],
    226     DecoderNamespace = "Mips32_64_PTR64" in {
    227 def LL64 : LLBase<"ll", GPR32Opnd>, LW_FM<0x30>, PTR_64,
    228            ISA_MIPS2_NOT_32R6_64R6;
    229 def SC64 : SCBase<"sc", GPR32Opnd>, LW_FM<0x38>, PTR_64,
    230            ISA_MIPS2_NOT_32R6_64R6;
    231 }
    232 
    233 /// Jump and Branch Instructions
    234 let isCodeGenOnly = 1 in {
    235   def JR64   : IndirectBranch<"jr", GPR64Opnd>, MTLO_FM<8>;
    236   def BEQ64  : CBranch<"beq", brtarget, seteq, GPR64Opnd>, BEQ_FM<4>;
    237   def BNE64  : CBranch<"bne", brtarget, setne, GPR64Opnd>, BEQ_FM<5>;
    238   def BGEZ64 : CBranchZero<"bgez", brtarget, setge, GPR64Opnd>, BGEZ_FM<1, 1>;
    239   def BGTZ64 : CBranchZero<"bgtz", brtarget, setgt, GPR64Opnd>, BGEZ_FM<7, 0>;
    240   def BLEZ64 : CBranchZero<"blez", brtarget, setle, GPR64Opnd>, BGEZ_FM<6, 0>;
    241   def BLTZ64 : CBranchZero<"bltz", brtarget, setlt, GPR64Opnd>, BGEZ_FM<1, 0>;
    242   def JALR64 : JumpLinkReg<"jalr", GPR64Opnd>, JALR_FM;
    243   def JALR64Pseudo : JumpLinkRegPseudo<GPR64Opnd, JALR, RA, GPR32Opnd>;
    244   def TAILCALL64_R : TailCallReg<GPR64Opnd, JR, GPR32Opnd>;
    245 }
    246 
    247 def PseudoReturn64 : PseudoReturnBase<GPR64Opnd>;
    248 def PseudoIndirectBranch64 : PseudoIndirectBranchBase<GPR64Opnd>;
    249 
    250 /// Multiply and Divide Instructions.
    251 let AdditionalPredicates = [NotInMicroMips] in {
    252   def DMULT  : Mult<"dmult", II_DMULT, GPR64Opnd, [HI0_64, LO0_64]>,
    253                MULT_FM<0, 0x1c>, ISA_MIPS3_NOT_32R6_64R6;
    254   def DMULTu : Mult<"dmultu", II_DMULTU, GPR64Opnd, [HI0_64, LO0_64]>,
    255                MULT_FM<0, 0x1d>, ISA_MIPS3_NOT_32R6_64R6;
    256 }
    257 def PseudoDMULT  : MultDivPseudo<DMULT, ACC128, GPR64Opnd, MipsMult,
    258                                  II_DMULT>, ISA_MIPS3_NOT_32R6_64R6;
    259 def PseudoDMULTu : MultDivPseudo<DMULTu, ACC128, GPR64Opnd, MipsMultu,
    260                                  II_DMULTU>, ISA_MIPS3_NOT_32R6_64R6;
    261 let AdditionalPredicates = [NotInMicroMips] in {
    262   def DSDIV : Div<"ddiv", II_DDIV, GPR64Opnd, [HI0_64, LO0_64]>,
    263               MULT_FM<0, 0x1e>, ISA_MIPS3_NOT_32R6_64R6;
    264   def DUDIV : Div<"ddivu", II_DDIVU, GPR64Opnd, [HI0_64, LO0_64]>,
    265               MULT_FM<0, 0x1f>, ISA_MIPS3_NOT_32R6_64R6;
    266 }
    267 def PseudoDSDIV : MultDivPseudo<DSDIV, ACC128, GPR64Opnd, MipsDivRem,
    268                                 II_DDIV, 0, 1, 1>, ISA_MIPS3_NOT_32R6_64R6;
    269 def PseudoDUDIV : MultDivPseudo<DUDIV, ACC128, GPR64Opnd, MipsDivRemU,
    270                                 II_DDIVU, 0, 1, 1>, ISA_MIPS3_NOT_32R6_64R6;
    271 
    272 let isCodeGenOnly = 1 in {
    273 def MTHI64 : MoveToLOHI<"mthi", GPR64Opnd, [HI0_64]>, MTLO_FM<0x11>,
    274              ISA_MIPS3_NOT_32R6_64R6;
    275 def MTLO64 : MoveToLOHI<"mtlo", GPR64Opnd, [LO0_64]>, MTLO_FM<0x13>,
    276              ISA_MIPS3_NOT_32R6_64R6;
    277 def MFHI64 : MoveFromLOHI<"mfhi", GPR64Opnd, AC0_64>, MFLO_FM<0x10>,
    278              ISA_MIPS3_NOT_32R6_64R6;
    279 def MFLO64 : MoveFromLOHI<"mflo", GPR64Opnd, AC0_64>, MFLO_FM<0x12>,
    280              ISA_MIPS3_NOT_32R6_64R6;
    281 def PseudoMFHI64 : PseudoMFLOHI<GPR64, ACC128, MipsMFHI>,
    282                    ISA_MIPS3_NOT_32R6_64R6;
    283 def PseudoMFLO64 : PseudoMFLOHI<GPR64, ACC128, MipsMFLO>,
    284                    ISA_MIPS3_NOT_32R6_64R6;
    285 def PseudoMTLOHI64 : PseudoMTLOHI<ACC128, GPR64>, ISA_MIPS3_NOT_32R6_64R6;
    286 
    287 /// Sign Ext In Register Instructions.
    288 def SEB64 : SignExtInReg<"seb", i8, GPR64Opnd, II_SEB>, SEB_FM<0x10, 0x20>,
    289             ISA_MIPS32R2;
    290 def SEH64 : SignExtInReg<"seh", i16, GPR64Opnd, II_SEH>, SEB_FM<0x18, 0x20>,
    291             ISA_MIPS32R2;
    292 }
    293 
    294 /// Count Leading
    295 let AdditionalPredicates = [NotInMicroMips] in {
    296   def DCLZ : StdMMR6Rel, CountLeading0<"dclz", GPR64Opnd>, CLO_FM<0x24>,
    297              ISA_MIPS64_NOT_64R6;
    298   def DCLO : StdMMR6Rel, CountLeading1<"dclo", GPR64Opnd>, CLO_FM<0x25>,
    299              ISA_MIPS64_NOT_64R6;
    300 
    301 /// Double Word Swap Bytes/HalfWords
    302   def DSBH : SubwordSwap<"dsbh", GPR64Opnd>, SEB_FM<2, 0x24>, ISA_MIPS64R2;
    303   def DSHD : SubwordSwap<"dshd", GPR64Opnd>, SEB_FM<5, 0x24>, ISA_MIPS64R2;
    304 }
    305 
    306 def LEA_ADDiu64 : EffectiveAddress<"daddiu", GPR64Opnd>, LW_FM<0x19>;
    307 
    308 let isCodeGenOnly = 1 in
    309 def RDHWR64 : ReadHardware<GPR64Opnd, HWRegsOpnd>, RDHWR_FM;
    310 
    311 let AdditionalPredicates = [NotInMicroMips] in {
    312   // The 'pos + size' constraints are enforced by the code that lowers into
    313   // MipsISD::Ext.
    314   def DEXT : ExtBase<"dext", GPR64Opnd, uimm5_report_uimm6, uimm5_plus1,
    315                      immZExt5, immZExt5Plus1, MipsExt>, EXT_FM<3>,
    316                      ISA_MIPS64R2;
    317   def DEXTM : ExtBase<"dextm", GPR64Opnd, uimm5, uimm5_plus33, immZExt5,
    318                       immZExt5Plus33, MipsExt>, EXT_FM<1>, ISA_MIPS64R2;
    319   def DEXTU : ExtBase<"dextu", GPR64Opnd, uimm5_plus32, uimm5_plus1,
    320                       immZExt5Plus32, immZExt5Plus1, MipsExt>, EXT_FM<2>,
    321                       ISA_MIPS64R2;
    322   def DINS : InsBase<"dins", GPR64Opnd, uimm6, uimm5_inssize_plus1, MipsIns>,
    323              EXT_FM<7>, ISA_MIPS64R2;
    324   def DINSU : InsBase<"dinsu", GPR64Opnd, uimm5_plus32, uimm5_inssize_plus1>,
    325               EXT_FM<6>, ISA_MIPS64R2;
    326   def DINSM : InsBase<"dinsm", GPR64Opnd, uimm5, uimm5_inssize_plus1>,
    327               EXT_FM<5>, ISA_MIPS64R2;
    328 }
    329 
    330 let isCodeGenOnly = 1, rs = 0, shamt = 0 in {
    331   def DSLL64_32 : FR<0x00, 0x3c, (outs GPR64:$rd), (ins GPR32:$rt),
    332                      "dsll\t$rd, $rt, 32", [], II_DSLL>;
    333   def SLL64_32 : FR<0x0, 0x00, (outs GPR64:$rd), (ins GPR32:$rt),
    334                     "sll\t$rd, $rt, 0", [], II_SLL>;
    335   def SLL64_64 : FR<0x0, 0x00, (outs GPR64:$rd), (ins GPR64:$rt),
    336                     "sll\t$rd, $rt, 0", [], II_SLL>;
    337 }
    338 
    339 // We need the following pseudo instruction to avoid offset calculation for
    340 // long branches.  See the comment in file MipsLongBranch.cpp for detailed
    341 // explanation.
    342 
    343 // Expands to: daddiu $dst, $src, %PART($tgt - $baltgt)
    344 // where %PART may be %hi or %lo, depending on the relocation kind
    345 // that $tgt is annotated with.
    346 def LONG_BRANCH_DADDiu : PseudoSE<(outs GPR64Opnd:$dst),
    347   (ins GPR64Opnd:$src, brtarget:$tgt, brtarget:$baltgt), []>;
    348 
    349 // Cavium Octeon cnMIPS instructions
    350 let DecoderNamespace = "CnMips",
    351     // FIXME: The lack of HasStdEnc is probably a bug
    352     EncodingPredicates = []<Predicate> in {
    353 
    354 class Count1s<string opstr, RegisterOperand RO>:
    355   InstSE<(outs RO:$rd), (ins RO:$rs), !strconcat(opstr, "\t$rd, $rs"),
    356          [(set RO:$rd, (ctpop RO:$rs))], II_POP, FrmR, opstr> {
    357   let TwoOperandAliasConstraint = "$rd = $rs";
    358 }
    359 
    360 class ExtsCins<string opstr, SDPatternOperator Op = null_frag>:
    361   InstSE<(outs GPR64Opnd:$rt), (ins GPR64Opnd:$rs, uimm5:$pos, uimm5:$lenm1),
    362          !strconcat(opstr, " $rt, $rs, $pos, $lenm1"),
    363          [(set GPR64Opnd:$rt, (Op GPR64Opnd:$rs, imm:$pos, imm:$lenm1))],
    364          NoItinerary, FrmR, opstr> {
    365   let TwoOperandAliasConstraint = "$rt = $rs";
    366 }
    367 
    368 class SetCC64_R<string opstr, PatFrag cond_op> :
    369   InstSE<(outs GPR64Opnd:$rd), (ins GPR64Opnd:$rs, GPR64Opnd:$rt),
    370          !strconcat(opstr, "\t$rd, $rs, $rt"),
    371          [(set GPR64Opnd:$rd, (zext (cond_op GPR64Opnd:$rs,
    372                                              GPR64Opnd:$rt)))],
    373          II_SEQ_SNE, FrmR, opstr> {
    374   let TwoOperandAliasConstraint = "$rd = $rs";
    375 }
    376 
    377 class SetCC64_I<string opstr, PatFrag cond_op>:
    378   InstSE<(outs GPR64Opnd:$rt), (ins GPR64Opnd:$rs, simm10_64:$imm10),
    379          !strconcat(opstr, "\t$rt, $rs, $imm10"),
    380          [(set GPR64Opnd:$rt, (zext (cond_op GPR64Opnd:$rs,
    381                                              immSExt10_64:$imm10)))],
    382          II_SEQI_SNEI, FrmI, opstr> {
    383   let TwoOperandAliasConstraint = "$rt = $rs";
    384 }
    385 
    386 class CBranchBitNum<string opstr, DAGOperand opnd, PatFrag cond_op,
    387                     RegisterOperand RO, Operand ImmOp, bits<64> shift = 1> :
    388   InstSE<(outs), (ins RO:$rs, ImmOp:$p, opnd:$offset),
    389          !strconcat(opstr, "\t$rs, $p, $offset"),
    390          [(brcond (i32 (cond_op (and RO:$rs, (shl shift, immZExt5_64:$p)), 0)),
    391                   bb:$offset)], II_BBIT, FrmI, opstr> {
    392   let isBranch = 1;
    393   let isTerminator = 1;
    394   let hasDelaySlot = 1;
    395   let Defs = [AT];
    396 }
    397 
    398 class MFC2OP<string asmstr, RegisterOperand RO> :
    399   InstSE<(outs RO:$rt, uimm16:$imm16), (ins),
    400          !strconcat(asmstr, "\t$rt, $imm16"), [], NoItinerary, FrmFR>;
    401 
    402 // Unsigned Byte Add
    403 def BADDu  : ArithLogicR<"baddu", GPR64Opnd, 1, II_BADDU>,
    404              ADD_FM<0x1c, 0x28>, ASE_CNMIPS {
    405   let Pattern = [(set GPR64Opnd:$rd,
    406                       (and (add GPR64Opnd:$rs, GPR64Opnd:$rt), 255))];
    407 }
    408 
    409 // Branch on Bit Clear /+32
    410 def BBIT0  : CBranchBitNum<"bbit0", brtarget, seteq, GPR64Opnd,
    411                            uimm5_64_report_uimm6>, BBIT_FM<0x32>, ASE_CNMIPS;
    412 def BBIT032: CBranchBitNum<"bbit032", brtarget, seteq, GPR64Opnd, uimm5_64,
    413                            0x100000000>, BBIT_FM<0x36>, ASE_CNMIPS;
    414 
    415 // Branch on Bit Set /+32
    416 def BBIT1  : CBranchBitNum<"bbit1", brtarget, setne, GPR64Opnd,
    417                            uimm5_64_report_uimm6>, BBIT_FM<0x3a>, ASE_CNMIPS;
    418 def BBIT132: CBranchBitNum<"bbit132", brtarget, setne, GPR64Opnd, uimm5_64,
    419                            0x100000000>, BBIT_FM<0x3e>, ASE_CNMIPS;
    420 
    421 // Multiply Doubleword to GPR
    422 def DMUL  : ArithLogicR<"dmul", GPR64Opnd, 1, II_DMUL, mul>,
    423             ADD_FM<0x1c, 0x03>, ASE_CNMIPS {
    424   let Defs = [HI0, LO0, P0, P1, P2];
    425 }
    426 
    427 // Extract a signed bit field /+32
    428 def EXTS  : ExtsCins<"exts">, EXTS_FM<0x3a>, ASE_CNMIPS;
    429 def EXTS32: ExtsCins<"exts32">, EXTS_FM<0x3b>, ASE_CNMIPS;
    430 
    431 // Clear and insert a bit field /+32
    432 def CINS  : ExtsCins<"cins">, EXTS_FM<0x32>, ASE_CNMIPS;
    433 def CINS32: ExtsCins<"cins32">, EXTS_FM<0x33>, ASE_CNMIPS;
    434 
    435 // Move to multiplier/product register
    436 def MTM0   : MoveToLOHI<"mtm0", GPR64Opnd, [MPL0, P0, P1, P2]>, MTMR_FM<0x08>,
    437              ASE_CNMIPS;
    438 def MTM1   : MoveToLOHI<"mtm1", GPR64Opnd, [MPL1, P0, P1, P2]>, MTMR_FM<0x0c>,
    439              ASE_CNMIPS;
    440 def MTM2   : MoveToLOHI<"mtm2", GPR64Opnd, [MPL2, P0, P1, P2]>, MTMR_FM<0x0d>,
    441              ASE_CNMIPS;
    442 def MTP0   : MoveToLOHI<"mtp0", GPR64Opnd, [P0]>, MTMR_FM<0x09>, ASE_CNMIPS;
    443 def MTP1   : MoveToLOHI<"mtp1", GPR64Opnd, [P1]>, MTMR_FM<0x0a>, ASE_CNMIPS;
    444 def MTP2   : MoveToLOHI<"mtp2", GPR64Opnd, [P2]>, MTMR_FM<0x0b>, ASE_CNMIPS;
    445 
    446 // Count Ones in a Word/Doubleword
    447 def POP   : Count1s<"pop", GPR32Opnd>, POP_FM<0x2c>, ASE_CNMIPS;
    448 def DPOP  : Count1s<"dpop", GPR64Opnd>, POP_FM<0x2d>, ASE_CNMIPS;
    449 
    450 // Set on equal/not equal
    451 def SEQ   : SetCC64_R<"seq", seteq>, SEQ_FM<0x2a>, ASE_CNMIPS;
    452 def SEQi  : SetCC64_I<"seqi", seteq>, SEQI_FM<0x2e>, ASE_CNMIPS;
    453 def SNE   : SetCC64_R<"sne", setne>, SEQ_FM<0x2b>, ASE_CNMIPS;
    454 def SNEi  : SetCC64_I<"snei", setne>, SEQI_FM<0x2f>, ASE_CNMIPS;
    455 
    456 // 192-bit x 64-bit Unsigned Multiply and Add
    457 def V3MULU: ArithLogicR<"v3mulu", GPR64Opnd, 0, II_DMUL>, ADD_FM<0x1c, 0x11>,
    458             ASE_CNMIPS {
    459   let Defs = [P0, P1, P2];
    460 }
    461 
    462 // 64-bit Unsigned Multiply and Add Move
    463 def VMM0  : ArithLogicR<"vmm0", GPR64Opnd, 0, II_DMUL>, ADD_FM<0x1c, 0x10>,
    464             ASE_CNMIPS {
    465   let Defs = [MPL0, P0, P1, P2];
    466 }
    467 
    468 // 64-bit Unsigned Multiply and Add
    469 def VMULU : ArithLogicR<"vmulu", GPR64Opnd, 0, II_DMUL>, ADD_FM<0x1c, 0x0f>,
    470             ASE_CNMIPS {
    471   let Defs = [MPL1, MPL2, P0, P1, P2];
    472 }
    473 
    474 // Move between CPU and coprocessor registers
    475 def DMFC2_OCTEON : MFC2OP<"dmfc2", GPR64Opnd>, MFC2OP_FM<0x12, 1>, ASE_CNMIPS;
    476 def DMTC2_OCTEON : MFC2OP<"dmtc2", GPR64Opnd>, MFC2OP_FM<0x12, 5>, ASE_CNMIPS;
    477 }
    478 
    479 }
    480 
    481 /// Move between CPU and coprocessor registers
    482 let DecoderNamespace = "Mips64", Predicates = [HasMips64] in {
    483 def DMFC0 : MFC3OP<"dmfc0", GPR64Opnd, COP0Opnd, II_DMFC0>, MFC3OP_FM<0x10, 1>,
    484             ISA_MIPS3;
    485 def DMTC0 : MTC3OP<"dmtc0", COP0Opnd, GPR64Opnd, II_DMTC0>, MFC3OP_FM<0x10, 5>,
    486             ISA_MIPS3;
    487 def DMFC2 : MFC3OP<"dmfc2", GPR64Opnd, COP2Opnd, II_DMFC2>, MFC3OP_FM<0x12, 1>,
    488             ISA_MIPS3;
    489 def DMTC2 : MTC3OP<"dmtc2", COP2Opnd, GPR64Opnd, II_DMTC2>, MFC3OP_FM<0x12, 5>,
    490             ISA_MIPS3;
    491 }
    492 
    493 //===----------------------------------------------------------------------===//
    494 //  Arbitrary patterns that map to one or more instructions
    495 //===----------------------------------------------------------------------===//
    496 
    497 // extended loads
    498 def : MipsPat<(i64 (extloadi1  addr:$src)), (LB64 addr:$src)>;
    499 def : MipsPat<(i64 (extloadi8  addr:$src)), (LB64 addr:$src)>;
    500 def : MipsPat<(i64 (extloadi16 addr:$src)), (LH64 addr:$src)>;
    501 def : MipsPat<(i64 (extloadi32 addr:$src)), (LW64 addr:$src)>;
    502 
    503 // hi/lo relocs
    504 def : MipsPat<(MipsHi tglobaladdr:$in), (LUi64 tglobaladdr:$in)>;
    505 def : MipsPat<(MipsHi tblockaddress:$in), (LUi64 tblockaddress:$in)>;
    506 def : MipsPat<(MipsHi tjumptable:$in), (LUi64 tjumptable:$in)>;
    507 def : MipsPat<(MipsHi tconstpool:$in), (LUi64 tconstpool:$in)>;
    508 def : MipsPat<(MipsHi tglobaltlsaddr:$in), (LUi64 tglobaltlsaddr:$in)>;
    509 def : MipsPat<(MipsHi texternalsym:$in), (LUi64 texternalsym:$in)>;
    510 
    511 let AdditionalPredicates = [NotInMicroMips] in {
    512   def : MipsPat<(MipsLo tglobaladdr:$in), (DADDiu ZERO_64, tglobaladdr:$in)>;
    513   def : MipsPat<(MipsLo tblockaddress:$in),
    514                 (DADDiu ZERO_64, tblockaddress:$in)>;
    515   def : MipsPat<(MipsLo tjumptable:$in), (DADDiu ZERO_64, tjumptable:$in)>;
    516   def : MipsPat<(MipsLo tconstpool:$in), (DADDiu ZERO_64, tconstpool:$in)>;
    517   def : MipsPat<(MipsLo tglobaltlsaddr:$in),
    518                 (DADDiu ZERO_64, tglobaltlsaddr:$in)>;
    519   def : MipsPat<(MipsLo texternalsym:$in), (DADDiu ZERO_64, texternalsym:$in)>;
    520 
    521   def : MipsPat<(add GPR64:$hi, (MipsLo tglobaladdr:$lo)),
    522                 (DADDiu GPR64:$hi, tglobaladdr:$lo)>;
    523   def : MipsPat<(add GPR64:$hi, (MipsLo tblockaddress:$lo)),
    524                 (DADDiu GPR64:$hi, tblockaddress:$lo)>;
    525   def : MipsPat<(add GPR64:$hi, (MipsLo tjumptable:$lo)),
    526                 (DADDiu GPR64:$hi, tjumptable:$lo)>;
    527   def : MipsPat<(add GPR64:$hi, (MipsLo tconstpool:$lo)),
    528                 (DADDiu GPR64:$hi, tconstpool:$lo)>;
    529   def : MipsPat<(add GPR64:$hi, (MipsLo tglobaltlsaddr:$lo)),
    530                 (DADDiu GPR64:$hi, tglobaltlsaddr:$lo)>;
    531 
    532   def : WrapperPat<tglobaladdr, DADDiu, GPR64>;
    533   def : WrapperPat<tconstpool, DADDiu, GPR64>;
    534   def : WrapperPat<texternalsym, DADDiu, GPR64>;
    535   def : WrapperPat<tblockaddress, DADDiu, GPR64>;
    536   def : WrapperPat<tjumptable, DADDiu, GPR64>;
    537   def : WrapperPat<tglobaltlsaddr, DADDiu, GPR64>;
    538 }
    539 
    540 defm : BrcondPats<GPR64, BEQ64, BNE64, SLT64, SLTu64, SLTi64, SLTiu64,
    541                   ZERO_64>;
    542 
    543 def : MipsPat<(brcond (i32 (setlt i64:$lhs, 1)), bb:$dst),
    544               (BLEZ64 i64:$lhs, bb:$dst)>;
    545 def : MipsPat<(brcond (i32 (setgt i64:$lhs, -1)), bb:$dst),
    546               (BGEZ64 i64:$lhs, bb:$dst)>;
    547 
    548 // setcc patterns
    549 defm : SeteqPats<GPR64, SLTiu64, XOR64, SLTu64, ZERO_64>;
    550 defm : SetlePats<GPR64, SLT64, SLTu64>;
    551 defm : SetgtPats<GPR64, SLT64, SLTu64>;
    552 defm : SetgePats<GPR64, SLT64, SLTu64>;
    553 defm : SetgeImmPats<GPR64, SLTi64, SLTiu64>;
    554 
    555 // truncate
    556 def : MipsPat<(trunc (assertsext GPR64:$src)),
    557               (EXTRACT_SUBREG GPR64:$src, sub_32)>;
    558 // The forward compatibility strategy employed by MIPS requires us to treat
    559 // values as being sign extended to an infinite number of bits. This allows
    560 // existing software to run without modification on any future MIPS
    561 // implementation (e.g. 128-bit, or 1024-bit). Being compatible with this
    562 // strategy requires that truncation acts as a sign-extension for values being
    563 // fed into instructions operating on 32-bit values. Such instructions have
    564 // undefined results if this is not true.
    565 // For our case, this means that we can't issue an extract_subreg for nodes
    566 // such as (trunc:i32 (assertzext:i64 X, i32)), because the sign-bit of the
    567 // lower subreg would not be replicated into the upper half.
    568 def : MipsPat<(trunc (assertzext_lt_i32 GPR64:$src)),
    569               (EXTRACT_SUBREG GPR64:$src, sub_32)>;
    570 def : MipsPat<(i32 (trunc GPR64:$src)),
    571               (SLL (EXTRACT_SUBREG GPR64:$src, sub_32), 0)>;
    572 
    573 // variable shift instructions patterns
    574 def : MipsPat<(shl GPR64:$rt, (i32 (trunc GPR64:$rs))),
    575               (DSLLV GPR64:$rt, (EXTRACT_SUBREG GPR64:$rs, sub_32))>;
    576 def : MipsPat<(srl GPR64:$rt, (i32 (trunc GPR64:$rs))),
    577               (DSRLV GPR64:$rt, (EXTRACT_SUBREG GPR64:$rs, sub_32))>;
    578 def : MipsPat<(sra GPR64:$rt, (i32 (trunc GPR64:$rs))),
    579               (DSRAV GPR64:$rt, (EXTRACT_SUBREG GPR64:$rs, sub_32))>;
    580 let AdditionalPredicates = [NotInMicroMips] in {
    581   def : MipsPat<(rotr GPR64:$rt, (i32 (trunc GPR64:$rs))),
    582                 (DROTRV GPR64:$rt, (EXTRACT_SUBREG GPR64:$rs, sub_32))>;
    583 }
    584 
    585 // 32-to-64-bit extension
    586 def : MipsPat<(i64 (anyext GPR32:$src)),
    587               (INSERT_SUBREG (i64 (IMPLICIT_DEF)), GPR32:$src, sub_32)>;
    588 def : MipsPat<(i64 (zext GPR32:$src)), (DSRL (DSLL64_32 GPR32:$src), 32)>;
    589 def : MipsPat<(i64 (sext GPR32:$src)), (SLL64_32 GPR32:$src)>;
    590 
    591 // Sign extend in register
    592 def : MipsPat<(i64 (sext_inreg GPR64:$src, i32)),
    593               (SLL64_64 GPR64:$src)>;
    594 
    595 // bswap MipsPattern
    596 def : MipsPat<(bswap GPR64:$rt), (DSHD (DSBH GPR64:$rt))>;
    597 
    598 // Carry pattern
    599 let AdditionalPredicates = [NotInMicroMips] in {
    600   def : MipsPat<(subc GPR64:$lhs, GPR64:$rhs),
    601                 (DSUBu GPR64:$lhs, GPR64:$rhs)>;
    602   def : MipsPat<(addc GPR64:$lhs, GPR64:$rhs),
    603                 (DADDu GPR64:$lhs, GPR64:$rhs)>, ASE_NOT_DSP;
    604   def : MipsPat<(addc GPR64:$lhs, immSExt16:$imm),
    605                 (DADDiu GPR64:$lhs, imm:$imm)>, ASE_NOT_DSP;
    606 }
    607 
    608 // Octeon bbit0/bbit1 MipsPattern
    609 def : MipsPat<(brcond (i32 (seteq (and i64:$lhs, PowerOf2LO:$mask), 0)), bb:$dst),
    610               (BBIT0 i64:$lhs, (Log2LO PowerOf2LO:$mask), bb:$dst)>, ASE_MIPS64_CNMIPS;
    611 def : MipsPat<(brcond (i32 (seteq (and i64:$lhs, PowerOf2HI:$mask), 0)), bb:$dst),
    612               (BBIT032 i64:$lhs, (Log2HI PowerOf2HI:$mask), bb:$dst)>, ASE_MIPS64_CNMIPS;
    613 def : MipsPat<(brcond (i32 (setne (and i64:$lhs, PowerOf2LO:$mask), 0)), bb:$dst),
    614               (BBIT1 i64:$lhs, (Log2LO PowerOf2LO:$mask), bb:$dst)>, ASE_MIPS64_CNMIPS;
    615 def : MipsPat<(brcond (i32 (setne (and i64:$lhs, PowerOf2HI:$mask), 0)), bb:$dst),
    616               (BBIT132 i64:$lhs, (Log2HI PowerOf2HI:$mask), bb:$dst)>, ASE_MIPS64_CNMIPS;
    617 
    618 // Atomic load patterns.
    619 def : MipsPat<(atomic_load_8 addr:$a), (LB64 addr:$a)>;
    620 def : MipsPat<(atomic_load_16 addr:$a), (LH64 addr:$a)>;
    621 def : MipsPat<(atomic_load_32 addr:$a), (LW64 addr:$a)>;
    622 def : MipsPat<(atomic_load_64 addr:$a), (LD addr:$a)>;
    623 
    624 // Atomic store patterns.
    625 def : MipsPat<(atomic_store_8 addr:$a, GPR64:$v), (SB64 GPR64:$v, addr:$a)>;
    626 def : MipsPat<(atomic_store_16 addr:$a, GPR64:$v), (SH64 GPR64:$v, addr:$a)>;
    627 def : MipsPat<(atomic_store_32 addr:$a, GPR64:$v), (SW64 GPR64:$v, addr:$a)>;
    628 def : MipsPat<(atomic_store_64 addr:$a, GPR64:$v), (SD GPR64:$v, addr:$a)>;
    629 
    630 //===----------------------------------------------------------------------===//
    631 // Instruction aliases
    632 //===----------------------------------------------------------------------===//
    633 let AdditionalPredicates = [NotInMicroMips] in {
    634   def : MipsInstAlias<"move $dst, $src",
    635                       (OR64 GPR64Opnd:$dst,  GPR64Opnd:$src, ZERO_64), 1>,
    636         GPR_64;
    637   def : MipsInstAlias<"move $dst, $src",
    638                       (DADDu GPR64Opnd:$dst,  GPR64Opnd:$src, ZERO_64), 1>,
    639         GPR_64;
    640   def : MipsInstAlias<"dadd $rs, $rt, $imm",
    641                       (DADDi GPR64Opnd:$rs, GPR64Opnd:$rt, simm16_64:$imm),
    642                       0>, ISA_MIPS3_NOT_32R6_64R6;
    643   def : MipsInstAlias<"dadd $rs, $imm",
    644                       (DADDi GPR64Opnd:$rs, GPR64Opnd:$rs, simm16_64:$imm),
    645                       0>, ISA_MIPS3_NOT_32R6_64R6;
    646   def : MipsInstAlias<"daddu $rs, $rt, $imm",
    647                       (DADDiu GPR64Opnd:$rs, GPR64Opnd:$rt, simm16_64:$imm),
    648                       0>, ISA_MIPS3;
    649   def : MipsInstAlias<"daddu $rs, $imm",
    650                       (DADDiu GPR64Opnd:$rs, GPR64Opnd:$rs, simm16_64:$imm),
    651                       0>, ISA_MIPS3;
    652 }
    653 def : MipsInstAlias<"dsll $rd, $rt, $rs",
    654                     (DSLLV GPR64Opnd:$rd, GPR64Opnd:$rt, GPR32Opnd:$rs), 0>,
    655                     ISA_MIPS3;
    656 let AdditionalPredicates = [NotInMicroMips] in {
    657   def : MipsInstAlias<"dneg $rt, $rs",
    658                       (DSUB GPR64Opnd:$rt, ZERO_64, GPR64Opnd:$rs), 1>,
    659                       ISA_MIPS3;
    660   def : MipsInstAlias<"dneg $rt",
    661                       (DSUB GPR64Opnd:$rt, ZERO_64, GPR64Opnd:$rt), 0>,
    662                       ISA_MIPS3;
    663   def : MipsInstAlias<"dnegu $rt, $rs",
    664                       (DSUBu GPR64Opnd:$rt, ZERO_64, GPR64Opnd:$rs), 1>,
    665                       ISA_MIPS3;
    666 }
    667 def : MipsInstAlias<"dsubi $rs, $rt, $imm",
    668                     (DADDi GPR64Opnd:$rs, GPR64Opnd:$rt,
    669                            InvertedImOperand64:$imm),
    670                     0>, ISA_MIPS3_NOT_32R6_64R6;
    671 def : MipsInstAlias<"dsubi $rs, $imm",
    672                     (DADDi GPR64Opnd:$rs, GPR64Opnd:$rs,
    673                            InvertedImOperand64:$imm),
    674                     0>, ISA_MIPS3_NOT_32R6_64R6;
    675 def : MipsInstAlias<"dsub $rs, $rt, $imm",
    676                     (DADDi GPR64Opnd:$rs, GPR64Opnd:$rt,
    677                            InvertedImOperand64:$imm),
    678                     0>, ISA_MIPS3_NOT_32R6_64R6;
    679 def : MipsInstAlias<"dsub $rs, $imm",
    680                     (DADDi GPR64Opnd:$rs, GPR64Opnd:$rs,
    681                            InvertedImOperand64:$imm),
    682                     0>, ISA_MIPS3_NOT_32R6_64R6;
    683 let AdditionalPredicates = [NotInMicroMips] in {
    684   def : MipsInstAlias<"dsubu $rt, $rs, $imm",
    685                       (DADDiu GPR64Opnd:$rt, GPR64Opnd:$rs,
    686                               InvertedImOperand64:$imm), 0>, ISA_MIPS3;
    687   def : MipsInstAlias<"dsubu $rs, $imm",
    688                       (DADDiu GPR64Opnd:$rs, GPR64Opnd:$rs,
    689                               InvertedImOperand64:$imm), 0>, ISA_MIPS3;
    690 }
    691 def : MipsInstAlias<"dsra $rd, $rt, $rs",
    692                     (DSRAV GPR64Opnd:$rd, GPR64Opnd:$rt, GPR32Opnd:$rs), 0>,
    693                     ISA_MIPS3;
    694 let AdditionalPredicates = [NotInMicroMips] in {
    695   def : MipsInstAlias<"dsrl $rd, $rt, $rs",
    696                       (DSRLV GPR64Opnd:$rd, GPR64Opnd:$rt, GPR32Opnd:$rs), 0>,
    697                       ISA_MIPS3;
    698 
    699 // Two operand (implicit 0 selector) versions:
    700   def : MipsInstAlias<"dmtc0 $rt, $rd",
    701                       (DMTC0 COP0Opnd:$rd, GPR64Opnd:$rt, 0), 0>;
    702   def : MipsInstAlias<"dmfc0 $rt, $rd",
    703                       (DMFC0 GPR64Opnd:$rt, COP0Opnd:$rd, 0), 0>;
    704 }
    705 def : MipsInstAlias<"dmfc2 $rt, $rd", (DMFC2 GPR64Opnd:$rt, COP2Opnd:$rd, 0), 0>;
    706 def : MipsInstAlias<"dmtc2 $rt, $rd", (DMTC2 COP2Opnd:$rd, GPR64Opnd:$rt, 0), 0>;
    707 
    708 def : MipsInstAlias<"synciobdma", (SYNC 0x2), 0>, ASE_MIPS64_CNMIPS;
    709 def : MipsInstAlias<"syncs", (SYNC 0x6), 0>, ASE_MIPS64_CNMIPS;
    710 def : MipsInstAlias<"syncw", (SYNC 0x4), 0>, ASE_MIPS64_CNMIPS;
    711 def : MipsInstAlias<"syncws", (SYNC 0x5), 0>, ASE_MIPS64_CNMIPS;
    712 
    713 // cnMIPS Aliases.
    714 
    715 // bbit* with $p 32-63 converted to bbit*32 with $p 0-31
    716 def : MipsInstAlias<"bbit0 $rs, $p, $offset",
    717                     (BBIT032 GPR64Opnd:$rs, uimm5_plus32_normalize_64:$p,
    718                              brtarget:$offset), 0>,
    719       ASE_CNMIPS;
    720 def : MipsInstAlias<"bbit1 $rs, $p, $offset",
    721                     (BBIT132 GPR64Opnd:$rs, uimm5_plus32_normalize_64:$p,
    722                              brtarget:$offset), 0>,
    723       ASE_CNMIPS;
    724 
    725 // exts with $pos 32-63 in converted to exts32 with $pos 0-31
    726 def : MipsInstAlias<"exts $rt, $rs, $pos, $lenm1",
    727                     (EXTS32 GPR64Opnd:$rt, GPR64Opnd:$rs,
    728                             uimm5_plus32_normalize:$pos, uimm5:$lenm1), 0>,
    729       ASE_CNMIPS;
    730 def : MipsInstAlias<"exts $rt, $pos, $lenm1",
    731                     (EXTS32 GPR64Opnd:$rt, GPR64Opnd:$rt,
    732                             uimm5_plus32_normalize:$pos, uimm5:$lenm1), 0>,
    733       ASE_CNMIPS;
    734 
    735 // cins with $pos 32-63 in converted to cins32 with $pos 0-31
    736 def : MipsInstAlias<"cins $rt, $rs, $pos, $lenm1",
    737                     (CINS32 GPR64Opnd:$rt, GPR64Opnd:$rs,
    738                             uimm5_plus32_normalize:$pos, uimm5:$lenm1), 0>,
    739       ASE_CNMIPS;
    740 def : MipsInstAlias<"cins $rt, $pos, $lenm1",
    741                     (CINS32 GPR64Opnd:$rt, GPR64Opnd:$rt,
    742                             uimm5_plus32_normalize:$pos, uimm5:$lenm1), 0>,
    743       ASE_CNMIPS;
    744 
    745 //===----------------------------------------------------------------------===//
    746 // Assembler Pseudo Instructions
    747 //===----------------------------------------------------------------------===//
    748 
    749 class LoadImmediate64<string instr_asm, Operand Od, RegisterOperand RO> :
    750   MipsAsmPseudoInst<(outs RO:$rt), (ins Od:$imm64),
    751                      !strconcat(instr_asm, "\t$rt, $imm64")> ;
    752 def LoadImm64 : LoadImmediate64<"dli", imm64, GPR64Opnd>;
    753 
    754 def LoadAddrReg64 : MipsAsmPseudoInst<(outs GPR64Opnd:$rt), (ins mem:$addr),
    755                                        "dla\t$rt, $addr">;
    756 def LoadAddrImm64 : MipsAsmPseudoInst<(outs GPR64Opnd:$rt), (ins imm64:$imm64),
    757                                        "dla\t$rt, $imm64">;
    758