| //===- Mips64InstrInfo.td - Mips64 Instruction Information -*- tablegen -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file describes Mips64 instructions. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| //===----------------------------------------------------------------------===// |
| // Mips Operand, Complex Patterns and Transformations Definitions. |
| //===----------------------------------------------------------------------===// |
| |
| // Instruction operand types |
| def shamt_64 : Operand<i64>; |
| |
| // Unsigned Operand |
| def uimm16_64 : Operand<i64> { |
| let PrintMethod = "printUnsignedImm"; |
| } |
| |
| // Transformation Function - get Imm - 32. |
| def Subtract32 : SDNodeXForm<imm, [{ |
| return getI32Imm((unsigned)N->getZExtValue() - 32); |
| }]>; |
| |
| // shamt field must fit in 5 bits. |
| def immZExt5_64 : ImmLeaf<i64, [{return Imm == (Imm & 0x1f);}]>; |
| |
| // imm32_63 predicate - True if imm is in range [32, 63]. |
| def imm32_63 : ImmLeaf<i64, |
| [{return (int32_t)Imm >= 32 && (int32_t)Imm < 64;}], |
| Subtract32>; |
| |
| //===----------------------------------------------------------------------===// |
| // Instructions specific format |
| //===----------------------------------------------------------------------===// |
| // Shifts |
| // 64-bit shift instructions. |
| class shift_rotate_imm64<bits<6> func, bits<5> isRotate, string instr_asm, |
| SDNode OpNode>: |
| shift_rotate_imm<func, isRotate, instr_asm, OpNode, immZExt5_64, shamt_64, |
| CPU64Regs>; |
| |
| class shift_rotate_imm64_32<bits<6> func, bits<5> isRotate, string instr_asm, |
| SDNode OpNode>: |
| shift_rotate_imm<func, isRotate, instr_asm, OpNode, imm32_63, shamt_64, |
| CPU64Regs>; |
| |
| // Mul, Div |
| class Mult64<bits<6> func, string instr_asm, InstrItinClass itin>: |
| Mult<func, instr_asm, itin, CPU64Regs, [HI64, LO64]>; |
| class Div64<SDNode op, bits<6> func, string instr_asm, InstrItinClass itin>: |
| Div<op, func, instr_asm, itin, CPU64Regs, [HI64, LO64]>; |
| |
| // Count Leading Ones/Zeros in Word |
| class CountLeading64<bits<6> func, string instr_asm, list<dag> pattern>: |
| FR<0x1c, func, (outs CPU64Regs:$dst), (ins CPU64Regs:$src), |
| !strconcat(instr_asm, "\t$dst, $src"), pattern, IIAlu>, |
| Requires<[HasBitCount]> { |
| let shamt = 0; |
| let rt = rd; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Instruction definition |
| //===----------------------------------------------------------------------===// |
| |
| /// Arithmetic Instructions (ALU Immediate) |
| def DADDiu : ArithLogicI<0x19, "daddiu", add, simm16_64, immSExt16, |
| CPU64Regs>; |
| def DANDi : ArithLogicI<0x0c, "andi", and, uimm16_64, immZExt16, CPU64Regs>; |
| def SLTi64 : SetCC_I<0x0a, "slti", setlt, simm16_64, immSExt16, CPU64Regs>; |
| def SLTiu64 : SetCC_I<0x0b, "sltiu", setult, simm16_64, immSExt16, CPU64Regs>; |
| def ORi64 : ArithLogicI<0x0d, "ori", or, uimm16_64, immZExt16, CPU64Regs>; |
| def XORi64 : ArithLogicI<0x0e, "xori", xor, uimm16_64, immZExt16, CPU64Regs>; |
| |
| /// Arithmetic Instructions (3-Operand, R-Type) |
| def DADDu : ArithLogicR<0x00, 0x2d, "daddu", add, IIAlu, CPU64Regs, 1>; |
| def DSUBu : ArithLogicR<0x00, 0x2f, "dsubu", sub, IIAlu, CPU64Regs>; |
| def SLT64 : SetCC_R<0x00, 0x2a, "slt", setlt, CPU64Regs>; |
| def SLTu64 : SetCC_R<0x00, 0x2b, "sltu", setult, CPU64Regs>; |
| def AND64 : ArithLogicR<0x00, 0x24, "and", and, IIAlu, CPU64Regs, 1>; |
| def OR64 : ArithLogicR<0x00, 0x25, "or", or, IIAlu, CPU64Regs, 1>; |
| def XOR64 : ArithLogicR<0x00, 0x26, "xor", xor, IIAlu, CPU64Regs, 1>; |
| def NOR64 : LogicNOR<0x00, 0x27, "nor", CPU64Regs>; |
| |
| /// Shift Instructions |
| def DSLL : shift_rotate_imm64<0x38, 0x00, "dsll", shl>; |
| def DSRL : shift_rotate_imm64<0x3a, 0x00, "dsrl", srl>; |
| def DSRA : shift_rotate_imm64<0x3b, 0x00, "dsra", sra>; |
| def DSLL32 : shift_rotate_imm64_32<0x3c, 0x00, "dsll32", shl>; |
| def DSRL32 : shift_rotate_imm64_32<0x3e, 0x00, "dsrl32", srl>; |
| def DSRA32 : shift_rotate_imm64_32<0x3f, 0x00, "dsra32", sra>; |
| def DSLLV : shift_rotate_reg<0x24, 0x00, "dsllv", shl, CPU64Regs>; |
| def DSRLV : shift_rotate_reg<0x26, 0x00, "dsrlv", srl, CPU64Regs>; |
| def DSRAV : shift_rotate_reg<0x27, 0x00, "dsrav", sra, CPU64Regs>; |
| |
| // Rotate Instructions |
| let Predicates = [HasMips64r2] in { |
| def DROTR : shift_rotate_imm64<0x3a, 0x01, "drotr", rotr>; |
| def DROTR32 : shift_rotate_imm64_32<0x3e, 0x01, "drotr32", rotr>; |
| def DROTRV : shift_rotate_reg<0x16, 0x01, "drotrv", rotr, CPU64Regs>; |
| } |
| |
| /// Load and Store Instructions |
| /// aligned |
| defm LB64 : LoadM64<0x20, "lb", sextloadi8>; |
| defm LBu64 : LoadM64<0x24, "lbu", zextloadi8>; |
| defm LH64 : LoadM64<0x21, "lh", sextloadi16_a>; |
| defm LHu64 : LoadM64<0x25, "lhu", zextloadi16_a>; |
| defm LW64 : LoadM64<0x23, "lw", sextloadi32_a>; |
| defm LWu64 : LoadM64<0x27, "lwu", zextloadi32_a>; |
| defm SB64 : StoreM64<0x28, "sb", truncstorei8>; |
| defm SH64 : StoreM64<0x29, "sh", truncstorei16_a>; |
| defm SW64 : StoreM64<0x2b, "sw", truncstorei32_a>; |
| defm LD : LoadM64<0x37, "ld", load_a>; |
| defm SD : StoreM64<0x3f, "sd", store_a>; |
| |
| /// unaligned |
| defm ULH64 : LoadM64<0x21, "ulh", sextloadi16_u, 1>; |
| defm ULHu64 : LoadM64<0x25, "ulhu", zextloadi16_u, 1>; |
| defm ULW64 : LoadM64<0x23, "ulw", sextloadi32_u, 1>; |
| defm USH64 : StoreM64<0x29, "ush", truncstorei16_u, 1>; |
| defm USW64 : StoreM64<0x2b, "usw", truncstorei32_u, 1>; |
| defm ULD : LoadM64<0x37, "uld", load_u, 1>; |
| defm USD : StoreM64<0x3f, "usd", store_u, 1>; |
| |
| /// Jump and Branch Instructions |
| def BEQ64 : CBranch<0x04, "beq", seteq, CPU64Regs>; |
| def BNE64 : CBranch<0x05, "bne", setne, CPU64Regs>; |
| def BGEZ64 : CBranchZero<0x01, 1, "bgez", setge, CPU64Regs>; |
| def BGTZ64 : CBranchZero<0x07, 0, "bgtz", setgt, CPU64Regs>; |
| def BLEZ64 : CBranchZero<0x07, 0, "blez", setle, CPU64Regs>; |
| def BLTZ64 : CBranchZero<0x01, 0, "bltz", setlt, CPU64Regs>; |
| |
| /// Multiply and Divide Instructions. |
| def DMULT : Mult64<0x1c, "dmult", IIImul>; |
| def DMULTu : Mult64<0x1d, "dmultu", IIImul>; |
| def DSDIV : Div64<MipsDivRem, 0x1e, "ddiv", IIIdiv>; |
| def DUDIV : Div64<MipsDivRemU, 0x1f, "ddivu", IIIdiv>; |
| |
| def MTHI64 : MoveToLOHI<0x11, "mthi", CPU64Regs, [HI64]>; |
| def MTLO64 : MoveToLOHI<0x13, "mtlo", CPU64Regs, [LO64]>; |
| def MFHI64 : MoveFromLOHI<0x10, "mfhi", CPU64Regs, [HI64]>; |
| def MFLO64 : MoveFromLOHI<0x12, "mflo", CPU64Regs, [LO64]>; |
| |
| /// Count Leading |
| def DCLZ : CountLeading64<0x24, "dclz", |
| [(set CPU64Regs:$dst, (ctlz CPU64Regs:$src))]>; |
| def DCLO : CountLeading64<0x25, "dclo", |
| [(set CPU64Regs:$dst, (ctlz (not CPU64Regs:$src)))]>; |
| |
| //===----------------------------------------------------------------------===// |
| // Arbitrary patterns that map to one or more instructions |
| //===----------------------------------------------------------------------===// |
| |
| // Small immediates |
| def : Pat<(i64 immSExt16:$in), |
| (DADDiu ZERO_64, imm:$in)>; |
| def : Pat<(i64 immZExt16:$in), |
| (ORi64 ZERO_64, imm:$in)>; |
| |
| // zextloadi32_u |
| def : Pat<(zextloadi32_u addr:$a), (DSRL (DSLL (ULW64_P8 addr:$a), 32), 32)>, |
| Requires<[IsN64]>; |
| def : Pat<(zextloadi32_u addr:$a), (DSRL (DSLL (ULW64 addr:$a), 32), 32)>, |
| Requires<[NotN64]>; |
| |
| // hi/lo relocs |
| def : Pat<(i64 (MipsLo tglobaladdr:$in)), (DADDiu ZERO_64, tglobaladdr:$in)>; |
| |
| defm : BrcondPats<CPU64Regs, BEQ64, BNE64, SLT64, SLTu64, SLTi64, SLTiu64, |
| ZERO_64>; |
| |
| // setcc patterns |
| defm : SeteqPats<CPU64Regs, SLTiu64, XOR64, SLTu64, ZERO_64>; |
| defm : SetlePats<CPU64Regs, SLT64, SLTu64>; |
| defm : SetgtPats<CPU64Regs, SLT64, SLTu64>; |
| defm : SetgePats<CPU64Regs, SLT64, SLTu64>; |
| defm : SetgeImmPats<CPU64Regs, SLTi64, SLTiu64>; |