Mips64InstrInfo.td revision 16164657d88c50be59a3fbff035ded786a98cf7f
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// Instruction operand types 19def shamt_64 : Operand<i64>; 20 21// Unsigned Operand 22def uimm16_64 : Operand<i64> { 23 let PrintMethod = "printUnsignedImm"; 24} 25 26// Transformation Function - get Imm - 32. 27def Subtract32 : SDNodeXForm<imm, [{ 28 return getImm(N, (unsigned)N->getZExtValue() - 32); 29}]>; 30 31// shamt must fit in 6 bits. 32def immZExt6 : ImmLeaf<i32, [{return Imm == (Imm & 0x3f);}]>; 33 34//===----------------------------------------------------------------------===// 35// Instructions specific format 36//===----------------------------------------------------------------------===// 37// Shifts 38// 64-bit shift instructions. 39let DecoderNamespace = "Mips64" in { 40class shift_rotate_imm64<string opstr, SDPatternOperator OpNode = null_frag>: 41 shift_rotate_imm<opstr, immZExt6, shamt, CPU64Regs, OpNode>; 42 43// Mul, Div 44class Mult64<bits<6> func, string instr_asm, InstrItinClass itin>: 45 Mult<func, instr_asm, itin, CPU64Regs, [HI64, LO64]>; 46class Div64<SDNode op, bits<6> func, string instr_asm, InstrItinClass itin>: 47 Div<op, func, instr_asm, itin, CPU64Regs, [HI64, LO64]>; 48 49multiclass Atomic2Ops64<PatFrag Op> { 50 def #NAME# : Atomic2Ops<Op, CPU64Regs, CPURegs>, 51 Requires<[NotN64, HasStdEnc]>; 52 def _P8 : Atomic2Ops<Op, CPU64Regs, CPU64Regs>, 53 Requires<[IsN64, HasStdEnc]> { 54 let isCodeGenOnly = 1; 55 } 56} 57 58multiclass AtomicCmpSwap64<PatFrag Op> { 59 def #NAME# : AtomicCmpSwap<Op, CPU64Regs, CPURegs>, 60 Requires<[NotN64, HasStdEnc]>; 61 def _P8 : AtomicCmpSwap<Op, CPU64Regs, CPU64Regs>, 62 Requires<[IsN64, HasStdEnc]> { 63 let isCodeGenOnly = 1; 64 } 65} 66} 67let usesCustomInserter = 1, Predicates = [HasStdEnc], 68 DecoderNamespace = "Mips64" in { 69 defm ATOMIC_LOAD_ADD_I64 : Atomic2Ops64<atomic_load_add_64>; 70 defm ATOMIC_LOAD_SUB_I64 : Atomic2Ops64<atomic_load_sub_64>; 71 defm ATOMIC_LOAD_AND_I64 : Atomic2Ops64<atomic_load_and_64>; 72 defm ATOMIC_LOAD_OR_I64 : Atomic2Ops64<atomic_load_or_64>; 73 defm ATOMIC_LOAD_XOR_I64 : Atomic2Ops64<atomic_load_xor_64>; 74 defm ATOMIC_LOAD_NAND_I64 : Atomic2Ops64<atomic_load_nand_64>; 75 defm ATOMIC_SWAP_I64 : Atomic2Ops64<atomic_swap_64>; 76 defm ATOMIC_CMP_SWAP_I64 : AtomicCmpSwap64<atomic_cmp_swap_64>; 77} 78 79//===----------------------------------------------------------------------===// 80// Instruction definition 81//===----------------------------------------------------------------------===// 82let DecoderNamespace = "Mips64" in { 83/// Arithmetic Instructions (ALU Immediate) 84def DADDi : ArithLogicI<"daddi", simm16_64, CPU64Regs>, ADDI_FM<0x18>; 85def DADDiu : ArithLogicI<"daddiu", simm16_64, CPU64Regs, immSExt16, add>, 86 ADDI_FM<0x19>, IsAsCheapAsAMove; 87def DANDi : ArithLogicI<"andi", uimm16_64, CPU64Regs, immZExt16, and>, 88 ADDI_FM<0xc>; 89def SLTi64 : SetCC_I<"slti", setlt, simm16_64, immSExt16, CPU64Regs>, 90 SLTI_FM<0xa>; 91def SLTiu64 : SetCC_I<"sltiu", setult, simm16_64, immSExt16, CPU64Regs>, 92 SLTI_FM<0xb>; 93def ORi64 : ArithLogicI<"ori", uimm16_64, CPU64Regs, immZExt16, or>, 94 ADDI_FM<0xd>; 95def XORi64 : ArithLogicI<"xori", uimm16_64, CPU64Regs, immZExt16, xor>, 96 ADDI_FM<0xe>; 97def LUi64 : LoadUpper<"lui", CPU64Regs, uimm16_64>, LUI_FM; 98 99/// Arithmetic Instructions (3-Operand, R-Type) 100def DADD : ArithLogicR<"dadd", CPU64Regs>, ADD_FM<0, 0x2c>; 101def DADDu : ArithLogicR<"daddu", CPU64Regs, 1, IIAlu, add>, ADD_FM<0, 0x2d>; 102def DSUBu : ArithLogicR<"dsubu", CPU64Regs, 0, IIAlu, sub>, ADD_FM<0, 0x2f>; 103def SLT64 : SetCC_R<"slt", setlt, CPU64Regs>, ADD_FM<0, 0x2a>; 104def SLTu64 : SetCC_R<"sltu", setult, CPU64Regs>, ADD_FM<0, 0x2b>; 105def AND64 : ArithLogicR<"and", CPU64Regs, 1, IIAlu, and>, ADD_FM<0, 0x24>; 106def OR64 : ArithLogicR<"or", CPU64Regs, 1, IIAlu, or>, ADD_FM<0, 0x25>; 107def XOR64 : ArithLogicR<"xor", CPU64Regs, 1, IIAlu, xor>, ADD_FM<0, 0x26>; 108def NOR64 : LogicNOR<"nor", CPU64Regs>, ADD_FM<0, 0x27>; 109 110/// Shift Instructions 111def DSLL : shift_rotate_imm64<"dsll", shl>, SRA_FM<0x38, 0>; 112def DSRL : shift_rotate_imm64<"dsrl", srl>, SRA_FM<0x3a, 0>; 113def DSRA : shift_rotate_imm64<"dsra", sra>, SRA_FM<0x3b, 0>; 114def DSLLV : shift_rotate_reg<"dsllv", shl, CPU64Regs>, SRLV_FM<0x14, 0>; 115def DSRLV : shift_rotate_reg<"dsrlv", srl, CPU64Regs>, SRLV_FM<0x16, 0>; 116def DSRAV : shift_rotate_reg<"dsrav", sra, CPU64Regs>, SRLV_FM<0x17, 0>; 117def DSLL32 : shift_rotate_imm64<"dsll32">, SRA_FM<0x3c, 0>; 118def DSRL32 : shift_rotate_imm64<"dsrl32">, SRA_FM<0x3e, 0>; 119def DSRA32 : shift_rotate_imm64<"dsra32">, SRA_FM<0x3f, 0>; 120} 121// Rotate Instructions 122let Predicates = [HasMips64r2, HasStdEnc], 123 DecoderNamespace = "Mips64" in { 124 def DROTR : shift_rotate_imm64<"drotr", rotr>, SRA_FM<0x3a, 1>; 125 def DROTRV : shift_rotate_reg<"drotrv", rotr, CPU64Regs>, SRLV_FM<0x16, 1>; 126} 127 128let DecoderNamespace = "Mips64" in { 129/// Load and Store Instructions 130/// aligned 131defm LB64 : LoadM<"lb", sextloadi8, CPU64Regs>, LW_FM<0x20>; 132defm LBu64 : LoadM<"lbu", zextloadi8, CPU64Regs>, LW_FM<0x24>; 133defm LH64 : LoadM<"lh", sextloadi16, CPU64Regs>, LW_FM<0x21>; 134defm LHu64 : LoadM<"lhu", zextloadi16, CPU64Regs>, LW_FM<0x25>; 135defm LW64 : LoadM<"lw", sextloadi32, CPU64Regs>, LW_FM<0x23>; 136defm LWu64 : LoadM<"lwu", zextloadi32, CPU64Regs>, LW_FM<0x27>; 137defm SB64 : StoreM<"sb", truncstorei8, CPU64Regs>, LW_FM<0x28>; 138defm SH64 : StoreM<"sh", truncstorei16, CPU64Regs>, LW_FM<0x29>; 139defm SW64 : StoreM<"sw", truncstorei32, CPU64Regs>, LW_FM<0x2b>; 140defm LD : LoadM<"ld", load, CPU64Regs>, LW_FM<0x37>; 141defm SD : StoreM<"sd", store, CPU64Regs>, LW_FM<0x3f>; 142 143/// load/store left/right 144let isCodeGenOnly = 1 in { 145 defm LWL64 : LoadLeftRightM64<0x22, "lwl", MipsLWL>; 146 defm LWR64 : LoadLeftRightM64<0x26, "lwr", MipsLWR>; 147 defm SWL64 : StoreLeftRightM64<0x2a, "swl", MipsSWL>; 148 defm SWR64 : StoreLeftRightM64<0x2e, "swr", MipsSWR>; 149} 150defm LDL : LoadLeftRightM64<0x1a, "ldl", MipsLDL>; 151defm LDR : LoadLeftRightM64<0x1b, "ldr", MipsLDR>; 152defm SDL : StoreLeftRightM64<0x2c, "sdl", MipsSDL>; 153defm SDR : StoreLeftRightM64<0x2d, "sdr", MipsSDR>; 154 155/// Load-linked, Store-conditional 156def LLD : LLBase<0x34, "lld", CPU64Regs, mem>, 157 Requires<[NotN64, HasStdEnc]>; 158def LLD_P8 : LLBase<0x34, "lld", CPU64Regs, mem64>, 159 Requires<[IsN64, HasStdEnc]> { 160 let isCodeGenOnly = 1; 161} 162def SCD : SCBase<0x3c, "scd", CPU64Regs, mem>, 163 Requires<[NotN64, HasStdEnc]>; 164def SCD_P8 : SCBase<0x3c, "scd", CPU64Regs, mem64>, 165 Requires<[IsN64, HasStdEnc]> { 166 let isCodeGenOnly = 1; 167} 168 169/// Jump and Branch Instructions 170def JR64 : IndirectBranch<CPU64Regs>; 171def BEQ64 : CBranch<"beq", seteq, CPU64Regs>, BEQ_FM<4>; 172def BNE64 : CBranch<"bne", setne, CPU64Regs>, BEQ_FM<5>; 173def BGEZ64 : CBranchZero<"bgez", setge, CPU64Regs>, BGEZ_FM<1, 1>; 174def BGTZ64 : CBranchZero<"bgtz", setgt, CPU64Regs>, BGEZ_FM<7, 0>; 175def BLEZ64 : CBranchZero<"blez", setle, CPU64Regs>, BGEZ_FM<6, 0>; 176def BLTZ64 : CBranchZero<"bltz", setlt, CPU64Regs>, BGEZ_FM<1, 0>; 177} 178let DecoderNamespace = "Mips64" in 179def JALR64 : JumpLinkReg<0x00, 0x09, "jalr", CPU64Regs>; 180def TAILCALL64_R : JumpFR<CPU64Regs, MipsTailCall>, IsTailCall; 181 182let DecoderNamespace = "Mips64" in { 183/// Multiply and Divide Instructions. 184def DMULT : Mult64<0x1c, "dmult", IIImul>; 185def DMULTu : Mult64<0x1d, "dmultu", IIImul>; 186def DSDIV : Div64<MipsDivRem, 0x1e, "ddiv", IIIdiv>; 187def DUDIV : Div64<MipsDivRemU, 0x1f, "ddivu", IIIdiv>; 188 189def MTHI64 : MoveToLOHI<"mthi", CPU64Regs, [HI64]>, MTLO_FM<0x11>; 190def MTLO64 : MoveToLOHI<"mtlo", CPU64Regs, [LO64]>, MTLO_FM<0x13>; 191def MFHI64 : MoveFromLOHI<"mfhi", CPU64Regs, [HI64]>, MFLO_FM<0x10>; 192def MFLO64 : MoveFromLOHI<"mflo", CPU64Regs, [LO64]>, MFLO_FM<0x12>; 193 194/// Sign Ext In Register Instructions. 195def SEB64 : SignExtInReg<"seb", i8, CPU64Regs>, SEB_FM<0x10>; 196def SEH64 : SignExtInReg<"seh", i16, CPU64Regs>, SEB_FM<0x18>; 197 198/// Count Leading 199def DCLZ : CountLeading0<"dclz", CPU64Regs>, CLO_FM<0x24>; 200def DCLO : CountLeading1<"dclo", CPU64Regs>, CLO_FM<0x25>; 201 202/// Double Word Swap Bytes/HalfWords 203def DSBH : SubwordSwap<0x24, 0x2, "dsbh", CPU64Regs>; 204def DSHD : SubwordSwap<0x24, 0x5, "dshd", CPU64Regs>; 205 206def LEA_ADDiu64 : EffectiveAddress<0x19,"daddiu\t$rt, $addr", CPU64Regs, mem_ea_64>; 207} 208let DecoderNamespace = "Mips64" in { 209def RDHWR64 : ReadHardware<CPU64Regs, HWRegs64>; 210 211def DEXT : ExtBase<3, "dext", CPU64Regs>; 212let Pattern = []<dag> in { 213 def DEXTU : ExtBase<2, "dextu", CPU64Regs>; 214 def DEXTM : ExtBase<1, "dextm", CPU64Regs>; 215} 216def DINS : InsBase<7, "dins", CPU64Regs>; 217let Pattern = []<dag> in { 218 def DINSU : InsBase<6, "dinsu", CPU64Regs>; 219 def DINSM : InsBase<5, "dinsm", CPU64Regs>; 220} 221 222let isCodeGenOnly = 1, rs = 0, shamt = 0 in { 223 def DSLL64_32 : FR<0x00, 0x3c, (outs CPU64Regs:$rd), (ins CPURegs:$rt), 224 "dsll\t$rd, $rt, 32", [], IIAlu>; 225 def SLL64_32 : FR<0x0, 0x00, (outs CPU64Regs:$rd), (ins CPURegs:$rt), 226 "sll\t$rd, $rt, 0", [], IIAlu>; 227 def SLL64_64 : FR<0x0, 0x00, (outs CPU64Regs:$rd), (ins CPU64Regs:$rt), 228 "sll\t$rd, $rt, 0", [], IIAlu>; 229} 230} 231//===----------------------------------------------------------------------===// 232// Arbitrary patterns that map to one or more instructions 233//===----------------------------------------------------------------------===// 234 235// extended loads 236let Predicates = [NotN64, HasStdEnc] in { 237 def : MipsPat<(i64 (extloadi1 addr:$src)), (LB64 addr:$src)>; 238 def : MipsPat<(i64 (extloadi8 addr:$src)), (LB64 addr:$src)>; 239 def : MipsPat<(i64 (extloadi16 addr:$src)), (LH64 addr:$src)>; 240 def : MipsPat<(i64 (extloadi32 addr:$src)), (LW64 addr:$src)>; 241} 242let Predicates = [IsN64, HasStdEnc] in { 243 def : MipsPat<(i64 (extloadi1 addr:$src)), (LB64_P8 addr:$src)>; 244 def : MipsPat<(i64 (extloadi8 addr:$src)), (LB64_P8 addr:$src)>; 245 def : MipsPat<(i64 (extloadi16 addr:$src)), (LH64_P8 addr:$src)>; 246 def : MipsPat<(i64 (extloadi32 addr:$src)), (LW64_P8 addr:$src)>; 247} 248 249// hi/lo relocs 250def : MipsPat<(MipsHi tglobaladdr:$in), (LUi64 tglobaladdr:$in)>; 251def : MipsPat<(MipsHi tblockaddress:$in), (LUi64 tblockaddress:$in)>; 252def : MipsPat<(MipsHi tjumptable:$in), (LUi64 tjumptable:$in)>; 253def : MipsPat<(MipsHi tconstpool:$in), (LUi64 tconstpool:$in)>; 254def : MipsPat<(MipsHi tglobaltlsaddr:$in), (LUi64 tglobaltlsaddr:$in)>; 255def : MipsPat<(MipsHi texternalsym:$in), (LUi64 texternalsym:$in)>; 256 257def : MipsPat<(MipsLo tglobaladdr:$in), (DADDiu ZERO_64, tglobaladdr:$in)>; 258def : MipsPat<(MipsLo tblockaddress:$in), (DADDiu ZERO_64, tblockaddress:$in)>; 259def : MipsPat<(MipsLo tjumptable:$in), (DADDiu ZERO_64, tjumptable:$in)>; 260def : MipsPat<(MipsLo tconstpool:$in), (DADDiu ZERO_64, tconstpool:$in)>; 261def : MipsPat<(MipsLo tglobaltlsaddr:$in), 262 (DADDiu ZERO_64, tglobaltlsaddr:$in)>; 263def : MipsPat<(MipsLo texternalsym:$in), (DADDiu ZERO_64, texternalsym:$in)>; 264 265def : MipsPat<(add CPU64Regs:$hi, (MipsLo tglobaladdr:$lo)), 266 (DADDiu CPU64Regs:$hi, tglobaladdr:$lo)>; 267def : MipsPat<(add CPU64Regs:$hi, (MipsLo tblockaddress:$lo)), 268 (DADDiu CPU64Regs:$hi, tblockaddress:$lo)>; 269def : MipsPat<(add CPU64Regs:$hi, (MipsLo tjumptable:$lo)), 270 (DADDiu CPU64Regs:$hi, tjumptable:$lo)>; 271def : MipsPat<(add CPU64Regs:$hi, (MipsLo tconstpool:$lo)), 272 (DADDiu CPU64Regs:$hi, tconstpool:$lo)>; 273def : MipsPat<(add CPU64Regs:$hi, (MipsLo tglobaltlsaddr:$lo)), 274 (DADDiu CPU64Regs:$hi, tglobaltlsaddr:$lo)>; 275 276def : WrapperPat<tglobaladdr, DADDiu, CPU64Regs>; 277def : WrapperPat<tconstpool, DADDiu, CPU64Regs>; 278def : WrapperPat<texternalsym, DADDiu, CPU64Regs>; 279def : WrapperPat<tblockaddress, DADDiu, CPU64Regs>; 280def : WrapperPat<tjumptable, DADDiu, CPU64Regs>; 281def : WrapperPat<tglobaltlsaddr, DADDiu, CPU64Regs>; 282 283defm : BrcondPats<CPU64Regs, BEQ64, BNE64, SLT64, SLTu64, SLTi64, SLTiu64, 284 ZERO_64>; 285 286// setcc patterns 287defm : SeteqPats<CPU64Regs, SLTiu64, XOR64, SLTu64, ZERO_64>; 288defm : SetlePats<CPU64Regs, SLT64, SLTu64>; 289defm : SetgtPats<CPU64Regs, SLT64, SLTu64>; 290defm : SetgePats<CPU64Regs, SLT64, SLTu64>; 291defm : SetgeImmPats<CPU64Regs, SLTi64, SLTiu64>; 292 293// truncate 294def : MipsPat<(i32 (trunc CPU64Regs:$src)), 295 (SLL (EXTRACT_SUBREG CPU64Regs:$src, sub_32), 0)>, 296 Requires<[IsN64, HasStdEnc]>; 297 298// 32-to-64-bit extension 299def : MipsPat<(i64 (anyext CPURegs:$src)), (SLL64_32 CPURegs:$src)>; 300def : MipsPat<(i64 (zext CPURegs:$src)), (DSRL (DSLL64_32 CPURegs:$src), 32)>; 301def : MipsPat<(i64 (sext CPURegs:$src)), (SLL64_32 CPURegs:$src)>; 302 303// Sign extend in register 304def : MipsPat<(i64 (sext_inreg CPU64Regs:$src, i32)), 305 (SLL64_64 CPU64Regs:$src)>; 306 307// bswap MipsPattern 308def : MipsPat<(bswap CPU64Regs:$rt), (DSHD (DSBH CPU64Regs:$rt))>; 309 310//===----------------------------------------------------------------------===// 311// Instruction aliases 312//===----------------------------------------------------------------------===// 313def : InstAlias<"move $dst,$src", (DADD CPU64Regs:$dst,CPU64Regs:$src,ZERO_64)>; 314 315/// Move between CPU and coprocessor registers 316let DecoderNamespace = "Mips64" in { 317def MFC0_3OP64 : MFC3OP<0x10, 0, (outs CPU64Regs:$rt), 318 (ins CPU64Regs:$rd, uimm16:$sel),"mfc0\t$rt, $rd, $sel">; 319def MTC0_3OP64 : MFC3OP<0x10, 4, (outs CPU64Regs:$rd, uimm16:$sel), 320 (ins CPU64Regs:$rt),"mtc0\t$rt, $rd, $sel">; 321def MFC2_3OP64 : MFC3OP<0x12, 0, (outs CPU64Regs:$rt), 322 (ins CPU64Regs:$rd, uimm16:$sel),"mfc2\t$rt, $rd, $sel">; 323def MTC2_3OP64 : MFC3OP<0x12, 4, (outs CPU64Regs:$rd, uimm16:$sel), 324 (ins CPU64Regs:$rt),"mtc2\t$rt, $rd, $sel">; 325def DMFC0_3OP64 : MFC3OP<0x10, 1, (outs CPU64Regs:$rt), 326 (ins CPU64Regs:$rd, uimm16:$sel),"dmfc0\t$rt, $rd, $sel">; 327def DMTC0_3OP64 : MFC3OP<0x10, 5, (outs CPU64Regs:$rd, uimm16:$sel), 328 (ins CPU64Regs:$rt),"dmtc0\t$rt, $rd, $sel">; 329def DMFC2_3OP64 : MFC3OP<0x12, 1, (outs CPU64Regs:$rt), 330 (ins CPU64Regs:$rd, uimm16:$sel),"dmfc2\t$rt, $rd, $sel">; 331def DMTC2_3OP64 : MFC3OP<0x12, 5, (outs CPU64Regs:$rd, uimm16:$sel), 332 (ins CPU64Regs:$rt),"dmtc2\t$rt, $rd, $sel">; 333} 334// Two operand (implicit 0 selector) versions: 335def : InstAlias<"mfc0 $rt, $rd", (MFC0_3OP64 CPU64Regs:$rt, CPU64Regs:$rd, 0)>; 336def : InstAlias<"mtc0 $rt, $rd", (MTC0_3OP64 CPU64Regs:$rd, 0, CPU64Regs:$rt)>; 337def : InstAlias<"mfc2 $rt, $rd", (MFC2_3OP64 CPU64Regs:$rt, CPU64Regs:$rd, 0)>; 338def : InstAlias<"mtc2 $rt, $rd", (MTC2_3OP64 CPU64Regs:$rd, 0, CPU64Regs:$rt)>; 339def : InstAlias<"dmfc0 $rt, $rd", (DMFC0_3OP64 CPU64Regs:$rt, CPU64Regs:$rd, 0)>; 340def : InstAlias<"dmtc0 $rt, $rd", (DMTC0_3OP64 CPU64Regs:$rd, 0, CPU64Regs:$rt)>; 341def : InstAlias<"dmfc2 $rt, $rd", (DMFC2_3OP64 CPU64Regs:$rt, CPU64Regs:$rd, 0)>; 342def : InstAlias<"dmtc2 $rt, $rd", (DMTC2_3OP64 CPU64Regs:$rd, 0, CPU64Regs:$rt)>; 343 344