//===-- MipsRegisterInfo.td - Mips Register defs -----------*- tablegen -*-===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===// // Declarations that describe the MIPS register file //===----------------------------------------------------------------------===// let Namespace = "Mips" in { def sub_32 : SubRegIndex<32>; def sub_64 : SubRegIndex<64>; def sub_lo : SubRegIndex<32>; def sub_hi : SubRegIndex<32, 32>; def sub_dsp16_19 : SubRegIndex<4, 16>; def sub_dsp20 : SubRegIndex<1, 20>; def sub_dsp21 : SubRegIndex<1, 21>; def sub_dsp22 : SubRegIndex<1, 22>; def sub_dsp23 : SubRegIndex<1, 23>; } class Unallocatable { bit isAllocatable = 0; } // We have banks of 32 registers each. class MipsReg<bits<16> Enc, string n> : Register<n> { let HWEncoding = Enc; let Namespace = "Mips"; } class MipsRegWithSubRegs<bits<16> Enc, string n, list<Register> subregs> : RegisterWithSubRegs<n, subregs> { let HWEncoding = Enc; let Namespace = "Mips"; } // Mips CPU Registers class MipsGPRReg<bits<16> Enc, string n> : MipsReg<Enc, n>; // Mips 64-bit CPU Registers class Mips64GPRReg<bits<16> Enc, string n, list<Register> subregs> : MipsRegWithSubRegs<Enc, n, subregs> { let SubRegIndices = [sub_32]; } // Mips 32-bit FPU Registers class FPR<bits<16> Enc, string n> : MipsReg<Enc, n>; // Mips 64-bit (aliased) FPU Registers class AFPR<bits<16> Enc, string n, list<Register> subregs> : MipsRegWithSubRegs<Enc, n, subregs> { let SubRegIndices = [sub_lo, sub_hi]; let CoveredBySubRegs = 1; } class AFPR64<bits<16> Enc, string n, list<Register> subregs> : MipsRegWithSubRegs<Enc, n, subregs> { let SubRegIndices = [sub_lo, sub_hi]; let CoveredBySubRegs = 1; } // Mips 128-bit (aliased) MSA Registers class AFPR128<bits<16> Enc, string n, list<Register> subregs> : MipsRegWithSubRegs<Enc, n, subregs> { let SubRegIndices = [sub_64]; } // Accumulator Registers class ACCReg<bits<16> Enc, string n, list<Register> subregs> : MipsRegWithSubRegs<Enc, n, subregs> { let SubRegIndices = [sub_lo, sub_hi]; let CoveredBySubRegs = 1; } // Mips Hardware Registers class HWR<bits<16> Enc, string n> : MipsReg<Enc, n>; //===----------------------------------------------------------------------===// // Registers //===----------------------------------------------------------------------===// let Namespace = "Mips" in { // General Purpose Registers def ZERO : MipsGPRReg< 0, "zero">, DwarfRegNum<[0]>; def AT : MipsGPRReg< 1, "1">, DwarfRegNum<[1]>; def V0 : MipsGPRReg< 2, "2">, DwarfRegNum<[2]>; def V1 : MipsGPRReg< 3, "3">, DwarfRegNum<[3]>; def A0 : MipsGPRReg< 4, "4">, DwarfRegNum<[4]>; def A1 : MipsGPRReg< 5, "5">, DwarfRegNum<[5]>; def A2 : MipsGPRReg< 6, "6">, DwarfRegNum<[6]>; def A3 : MipsGPRReg< 7, "7">, DwarfRegNum<[7]>; def T0 : MipsGPRReg< 8, "8">, DwarfRegNum<[8]>; def T1 : MipsGPRReg< 9, "9">, DwarfRegNum<[9]>; def T2 : MipsGPRReg< 10, "10">, DwarfRegNum<[10]>; def T3 : MipsGPRReg< 11, "11">, DwarfRegNum<[11]>; def T4 : MipsGPRReg< 12, "12">, DwarfRegNum<[12]>; def T5 : MipsGPRReg< 13, "13">, DwarfRegNum<[13]>; def T6 : MipsGPRReg< 14, "14">, DwarfRegNum<[14]>; def T7 : MipsGPRReg< 15, "15">, DwarfRegNum<[15]>; def S0 : MipsGPRReg< 16, "16">, DwarfRegNum<[16]>; def S1 : MipsGPRReg< 17, "17">, DwarfRegNum<[17]>; def S2 : MipsGPRReg< 18, "18">, DwarfRegNum<[18]>; def S3 : MipsGPRReg< 19, "19">, DwarfRegNum<[19]>; def S4 : MipsGPRReg< 20, "20">, DwarfRegNum<[20]>; def S5 : MipsGPRReg< 21, "21">, DwarfRegNum<[21]>; def S6 : MipsGPRReg< 22, "22">, DwarfRegNum<[22]>; def S7 : MipsGPRReg< 23, "23">, DwarfRegNum<[23]>; def T8 : MipsGPRReg< 24, "24">, DwarfRegNum<[24]>; def T9 : MipsGPRReg< 25, "25">, DwarfRegNum<[25]>; def K0 : MipsGPRReg< 26, "26">, DwarfRegNum<[26]>; def K1 : MipsGPRReg< 27, "27">, DwarfRegNum<[27]>; def GP : MipsGPRReg< 28, "gp">, DwarfRegNum<[28]>; def SP : MipsGPRReg< 29, "sp">, DwarfRegNum<[29]>; def FP : MipsGPRReg< 30, "fp">, DwarfRegNum<[30]>; def RA : MipsGPRReg< 31, "ra">, DwarfRegNum<[31]>; // General Purpose 64-bit Registers def ZERO_64 : Mips64GPRReg< 0, "zero", [ZERO]>, DwarfRegNum<[0]>; def AT_64 : Mips64GPRReg< 1, "1", [AT]>, DwarfRegNum<[1]>; def V0_64 : Mips64GPRReg< 2, "2", [V0]>, DwarfRegNum<[2]>; def V1_64 : Mips64GPRReg< 3, "3", [V1]>, DwarfRegNum<[3]>; def A0_64 : Mips64GPRReg< 4, "4", [A0]>, DwarfRegNum<[4]>; def A1_64 : Mips64GPRReg< 5, "5", [A1]>, DwarfRegNum<[5]>; def A2_64 : Mips64GPRReg< 6, "6", [A2]>, DwarfRegNum<[6]>; def A3_64 : Mips64GPRReg< 7, "7", [A3]>, DwarfRegNum<[7]>; def T0_64 : Mips64GPRReg< 8, "8", [T0]>, DwarfRegNum<[8]>; def T1_64 : Mips64GPRReg< 9, "9", [T1]>, DwarfRegNum<[9]>; def T2_64 : Mips64GPRReg< 10, "10", [T2]>, DwarfRegNum<[10]>; def T3_64 : Mips64GPRReg< 11, "11", [T3]>, DwarfRegNum<[11]>; def T4_64 : Mips64GPRReg< 12, "12", [T4]>, DwarfRegNum<[12]>; def T5_64 : Mips64GPRReg< 13, "13", [T5]>, DwarfRegNum<[13]>; def T6_64 : Mips64GPRReg< 14, "14", [T6]>, DwarfRegNum<[14]>; def T7_64 : Mips64GPRReg< 15, "15", [T7]>, DwarfRegNum<[15]>; def S0_64 : Mips64GPRReg< 16, "16", [S0]>, DwarfRegNum<[16]>; def S1_64 : Mips64GPRReg< 17, "17", [S1]>, DwarfRegNum<[17]>; def S2_64 : Mips64GPRReg< 18, "18", [S2]>, DwarfRegNum<[18]>; def S3_64 : Mips64GPRReg< 19, "19", [S3]>, DwarfRegNum<[19]>; def S4_64 : Mips64GPRReg< 20, "20", [S4]>, DwarfRegNum<[20]>; def S5_64 : Mips64GPRReg< 21, "21", [S5]>, DwarfRegNum<[21]>; def S6_64 : Mips64GPRReg< 22, "22", [S6]>, DwarfRegNum<[22]>; def S7_64 : Mips64GPRReg< 23, "23", [S7]>, DwarfRegNum<[23]>; def T8_64 : Mips64GPRReg< 24, "24", [T8]>, DwarfRegNum<[24]>; def T9_64 : Mips64GPRReg< 25, "25", [T9]>, DwarfRegNum<[25]>; def K0_64 : Mips64GPRReg< 26, "26", [K0]>, DwarfRegNum<[26]>; def K1_64 : Mips64GPRReg< 27, "27", [K1]>, DwarfRegNum<[27]>; def GP_64 : Mips64GPRReg< 28, "gp", [GP]>, DwarfRegNum<[28]>; def SP_64 : Mips64GPRReg< 29, "sp", [SP]>, DwarfRegNum<[29]>; def FP_64 : Mips64GPRReg< 30, "fp", [FP]>, DwarfRegNum<[30]>; def RA_64 : Mips64GPRReg< 31, "ra", [RA]>, DwarfRegNum<[31]>; /// Mips Single point precision FPU Registers foreach I = 0-31 in def F#I : FPR<I, "f"#I>, DwarfRegNum<[!add(I, 32)]>; // Higher half of 64-bit FP registers. foreach I = 0-31 in def F_HI#I : FPR<I, "f"#I>, DwarfRegNum<[!add(I, 32)]>; /// Mips Double point precision FPU Registers (aliased /// with the single precision to hold 64 bit values) foreach I = 0-15 in def D#I : AFPR<!shl(I, 1), "f"#!shl(I, 1), [!cast<FPR>("F"#!shl(I, 1)), !cast<FPR>("F"#!add(!shl(I, 1), 1))]>; /// Mips Double point precision FPU Registers in MFP64 mode. foreach I = 0-31 in def D#I#_64 : AFPR64<I, "f"#I, [!cast<FPR>("F"#I), !cast<FPR>("F_HI"#I)]>, DwarfRegNum<[!add(I, 32)]>; /// Mips MSA registers /// MSA and FPU cannot both be present unless the FPU has 64-bit registers foreach I = 0-31 in def W#I : AFPR128<I, "w"#I, [!cast<AFPR64>("D"#I#"_64")]>, DwarfRegNum<[!add(I, 32)]>; // Hi/Lo registers def HI0 : MipsReg<0, "ac0">, DwarfRegNum<[64]>; def HI1 : MipsReg<1, "ac1">, DwarfRegNum<[176]>; def HI2 : MipsReg<2, "ac2">, DwarfRegNum<[178]>; def HI3 : MipsReg<3, "ac3">, DwarfRegNum<[180]>; def LO0 : MipsReg<0, "ac0">, DwarfRegNum<[65]>; def LO1 : MipsReg<1, "ac1">, DwarfRegNum<[177]>; def LO2 : MipsReg<2, "ac2">, DwarfRegNum<[179]>; def LO3 : MipsReg<3, "ac3">, DwarfRegNum<[181]>; let SubRegIndices = [sub_32] in { def HI0_64 : RegisterWithSubRegs<"hi", [HI0]>; def LO0_64 : RegisterWithSubRegs<"lo", [LO0]>; } // FP control registers. foreach I = 0-31 in def FCR#I : MipsReg<#I, ""#I>; // FP condition code registers. foreach I = 0-7 in def FCC#I : MipsReg<#I, "fcc"#I>; // COP2 registers. foreach I = 0-31 in def COP2#I : MipsReg<#I, ""#I>; // COP3 registers. foreach I = 0-31 in def COP3#I : MipsReg<#I, ""#I>; // PC register def PC : Register<"pc">; // Hardware register $29 foreach I = 0-31 in def HWR#I : MipsReg<#I, ""#I>; // Accum registers foreach I = 0-3 in def AC#I : ACCReg<#I, "ac"#I, [!cast<Register>("LO"#I), !cast<Register>("HI"#I)]>; def AC0_64 : ACCReg<0, "ac0", [LO0_64, HI0_64]>; // DSP-ASE control register fields. def DSPPos : Register<"">; def DSPSCount : Register<"">; def DSPCarry : Register<"">; def DSPEFI : Register<"">; def DSPOutFlag16_19 : Register<"">; def DSPOutFlag20 : Register<"">; def DSPOutFlag21 : Register<"">; def DSPOutFlag22 : Register<"">; def DSPOutFlag23 : Register<"">; def DSPCCond : Register<"">; let SubRegIndices = [sub_dsp16_19, sub_dsp20, sub_dsp21, sub_dsp22, sub_dsp23] in def DSPOutFlag : RegisterWithSubRegs<"", [DSPOutFlag16_19, DSPOutFlag20, DSPOutFlag21, DSPOutFlag22, DSPOutFlag23]>; // MSA-ASE control registers. def MSAIR : MipsReg<0, "0">; def MSACSR : MipsReg<1, "1">; def MSAAccess : MipsReg<2, "2">; def MSASave : MipsReg<3, "3">; def MSAModify : MipsReg<4, "4">; def MSARequest : MipsReg<5, "5">; def MSAMap : MipsReg<6, "6">; def MSAUnmap : MipsReg<7, "7">; // Octeon multiplier and product registers def MPL0 : MipsReg<0, "mpl0">; def MPL1 : MipsReg<1, "mpl1">; def MPL2 : MipsReg<2, "mpl2">; def P0 : MipsReg<0, "p0">; def P1 : MipsReg<1, "p1">; def P2 : MipsReg<2, "p2">; } //===----------------------------------------------------------------------===// // Register Classes //===----------------------------------------------------------------------===// class GPR32Class<list<ValueType> regTypes> : RegisterClass<"Mips", regTypes, 32, (add // Reserved ZERO, AT, // Return Values and Arguments V0, V1, A0, A1, A2, A3, // Not preserved across procedure calls T0, T1, T2, T3, T4, T5, T6, T7, // Callee save S0, S1, S2, S3, S4, S5, S6, S7, // Not preserved across procedure calls T8, T9, // Reserved K0, K1, GP, SP, FP, RA)>; def GPR32 : GPR32Class<[i32]>; def DSPR : GPR32Class<[v4i8, v2i16]>; def GPR64 : RegisterClass<"Mips", [i64], 64, (add // Reserved ZERO_64, AT_64, // Return Values and Arguments V0_64, V1_64, A0_64, A1_64, A2_64, A3_64, // Not preserved across procedure calls T0_64, T1_64, T2_64, T3_64, T4_64, T5_64, T6_64, T7_64, // Callee save S0_64, S1_64, S2_64, S3_64, S4_64, S5_64, S6_64, S7_64, // Not preserved across procedure calls T8_64, T9_64, // Reserved K0_64, K1_64, GP_64, SP_64, FP_64, RA_64)>; def CPU16Regs : RegisterClass<"Mips", [i32], 32, (add // Return Values and Arguments V0, V1, A0, A1, A2, A3, // Callee save S0, S1)>; def CPU16RegsPlusSP : RegisterClass<"Mips", [i32], 32, (add // Return Values and Arguments V0, V1, A0, A1, A2, A3, // Callee save S0, S1, SP)>; def CPURAReg : RegisterClass<"Mips", [i32], 32, (add RA)>, Unallocatable; def CPUSPReg : RegisterClass<"Mips", [i32], 32, (add SP)>, Unallocatable; // 64bit fp: // * FGR64 - 32 64-bit registers // * AFGR64 - 16 32-bit even registers (32-bit FP Mode) // // 32bit fp: // * FGR32 - 16 32-bit even registers // * FGR32 - 32 32-bit registers (single float only mode) def FGR32 : RegisterClass<"Mips", [f32], 32, (sequence "F%u", 0, 31)>; def FGRH32 : RegisterClass<"Mips", [f32], 32, (sequence "F_HI%u", 0, 31)>, Unallocatable; def AFGR64 : RegisterClass<"Mips", [f64], 64, (add // Return Values and Arguments D0, D1, // Not preserved across procedure calls D2, D3, D4, D5, // Return Values and Arguments D6, D7, // Not preserved across procedure calls D8, D9, // Callee save D10, D11, D12, D13, D14, D15)>; def FGR64 : RegisterClass<"Mips", [f64], 64, (sequence "D%u_64", 0, 31)>; // Used to reserve odd registers when given -mattr=+nooddspreg def OddSP : RegisterClass<"Mips", [f32], 32, (add (decimate (sequence "F%u", 1, 31), 2), (decimate (sequence "F_HI%u", 1, 31), 2))>, Unallocatable; // FP control registers. def CCR : RegisterClass<"Mips", [i32], 32, (sequence "FCR%u", 0, 31)>, Unallocatable; // FP condition code registers. def FCC : RegisterClass<"Mips", [i32], 32, (sequence "FCC%u", 0, 7)>, Unallocatable; // MIPS32r6/MIPS64r6 store FPU condition codes in normal FGR registers. // This class allows us to represent this in codegen patterns. def FGRCC : RegisterClass<"Mips", [i32], 32, (sequence "F%u", 0, 31)>; def MSA128B: RegisterClass<"Mips", [v16i8], 128, (sequence "W%u", 0, 31)>; def MSA128H: RegisterClass<"Mips", [v8i16, v8f16], 128, (sequence "W%u", 0, 31)>; def MSA128W: RegisterClass<"Mips", [v4i32, v4f32], 128, (sequence "W%u", 0, 31)>; def MSA128D: RegisterClass<"Mips", [v2i64, v2f64], 128, (sequence "W%u", 0, 31)>; def MSACtrl: RegisterClass<"Mips", [i32], 32, (add MSAIR, MSACSR, MSAAccess, MSASave, MSAModify, MSARequest, MSAMap, MSAUnmap)>; // Hi/Lo Registers def LO32 : RegisterClass<"Mips", [i32], 32, (add LO0)>; def HI32 : RegisterClass<"Mips", [i32], 32, (add HI0)>; def LO32DSP : RegisterClass<"Mips", [i32], 32, (sequence "LO%u", 0, 3)>; def HI32DSP : RegisterClass<"Mips", [i32], 32, (sequence "HI%u", 0, 3)>; def LO64 : RegisterClass<"Mips", [i64], 64, (add LO0_64)>; def HI64 : RegisterClass<"Mips", [i64], 64, (add HI0_64)>; // Hardware registers def HWRegs : RegisterClass<"Mips", [i32], 32, (sequence "HWR%u", 0, 31)>, Unallocatable; // Accumulator Registers def ACC64 : RegisterClass<"Mips", [untyped], 64, (add AC0)> { let Size = 64; } def ACC128 : RegisterClass<"Mips", [untyped], 128, (add AC0_64)> { let Size = 128; } def ACC64DSP : RegisterClass<"Mips", [untyped], 64, (sequence "AC%u", 0, 3)> { let Size = 64; } def DSPCC : RegisterClass<"Mips", [v4i8, v2i16], 32, (add DSPCCond)>; // Coprocessor 2 registers. def COP2 : RegisterClass<"Mips", [i32], 32, (sequence "COP2%u", 0, 31)>, Unallocatable; // Coprocessor 3 registers. def COP3 : RegisterClass<"Mips", [i32], 32, (sequence "COP3%u", 0, 31)>, Unallocatable; // Octeon multiplier and product registers def OCTEON_MPL : RegisterClass<"Mips", [i64], 64, (add MPL0, MPL1, MPL2)>, Unallocatable; def OCTEON_P : RegisterClass<"Mips", [i64], 64, (add P0, P1, P2)>, Unallocatable; // Register Operands. class MipsAsmRegOperand : AsmOperandClass { let ParserMethod = "ParseAnyRegister"; } def GPR64AsmOperand : MipsAsmRegOperand { let Name = "GPR64AsmReg"; let PredicateMethod = "isGPRAsmReg"; } def GPR32AsmOperand : MipsAsmRegOperand { let Name = "GPR32AsmReg"; let PredicateMethod = "isGPRAsmReg"; } def ACC64DSPAsmOperand : MipsAsmRegOperand { let Name = "ACC64DSPAsmReg"; let PredicateMethod = "isACCAsmReg"; } def HI32DSPAsmOperand : MipsAsmRegOperand { let Name = "HI32DSPAsmReg"; let PredicateMethod = "isACCAsmReg"; } def LO32DSPAsmOperand : MipsAsmRegOperand { let Name = "LO32DSPAsmReg"; let PredicateMethod = "isACCAsmReg"; } def CCRAsmOperand : MipsAsmRegOperand { let Name = "CCRAsmReg"; } def AFGR64AsmOperand : MipsAsmRegOperand { let Name = "AFGR64AsmReg"; let PredicateMethod = "isFGRAsmReg"; } def FGR64AsmOperand : MipsAsmRegOperand { let Name = "FGR64AsmReg"; let PredicateMethod = "isFGRAsmReg"; } def FGR32AsmOperand : MipsAsmRegOperand { let Name = "FGR32AsmReg"; let PredicateMethod = "isFGRAsmReg"; } def FGRH32AsmOperand : MipsAsmRegOperand { let Name = "FGRH32AsmReg"; let PredicateMethod = "isFGRAsmReg"; } def FCCRegsAsmOperand : MipsAsmRegOperand { let Name = "FCCAsmReg"; } def MSA128AsmOperand : MipsAsmRegOperand { let Name = "MSA128AsmReg"; } def MSACtrlAsmOperand : MipsAsmRegOperand { let Name = "MSACtrlAsmReg"; } def GPR32Opnd : RegisterOperand<GPR32> { let ParserMatchClass = GPR32AsmOperand; } def GPR64Opnd : RegisterOperand<GPR64> { let ParserMatchClass = GPR64AsmOperand; } def DSPROpnd : RegisterOperand<DSPR> { let ParserMatchClass = GPR32AsmOperand; } def CCROpnd : RegisterOperand<CCR> { let ParserMatchClass = CCRAsmOperand; } def HWRegsAsmOperand : MipsAsmRegOperand { let Name = "HWRegsAsmReg"; } def COP2AsmOperand : MipsAsmRegOperand { let Name = "COP2AsmReg"; } def COP3AsmOperand : MipsAsmRegOperand { let Name = "COP3AsmReg"; } def HWRegsOpnd : RegisterOperand<HWRegs> { let ParserMatchClass = HWRegsAsmOperand; } def AFGR64Opnd : RegisterOperand<AFGR64> { let ParserMatchClass = AFGR64AsmOperand; } def FGR64Opnd : RegisterOperand<FGR64> { let ParserMatchClass = FGR64AsmOperand; } def FGR32Opnd : RegisterOperand<FGR32> { let ParserMatchClass = FGR32AsmOperand; } def FGRCCOpnd : RegisterOperand<FGRCC> { // The assembler doesn't use register classes so we can re-use // FGR32AsmOperand. let ParserMatchClass = FGR32AsmOperand; } def FGRH32Opnd : RegisterOperand<FGRH32> { let ParserMatchClass = FGRH32AsmOperand; } def FCCRegsOpnd : RegisterOperand<FCC> { let ParserMatchClass = FCCRegsAsmOperand; } def LO32DSPOpnd : RegisterOperand<LO32DSP> { let ParserMatchClass = LO32DSPAsmOperand; } def HI32DSPOpnd : RegisterOperand<HI32DSP> { let ParserMatchClass = HI32DSPAsmOperand; } def ACC64DSPOpnd : RegisterOperand<ACC64DSP> { let ParserMatchClass = ACC64DSPAsmOperand; } def COP2Opnd : RegisterOperand<COP2> { let ParserMatchClass = COP2AsmOperand; } def COP3Opnd : RegisterOperand<COP3> { let ParserMatchClass = COP3AsmOperand; } def MSA128BOpnd : RegisterOperand<MSA128B> { let ParserMatchClass = MSA128AsmOperand; } def MSA128HOpnd : RegisterOperand<MSA128H> { let ParserMatchClass = MSA128AsmOperand; } def MSA128WOpnd : RegisterOperand<MSA128W> { let ParserMatchClass = MSA128AsmOperand; } def MSA128DOpnd : RegisterOperand<MSA128D> { let ParserMatchClass = MSA128AsmOperand; } def MSA128CROpnd : RegisterOperand<MSACtrl> { let ParserMatchClass = MSACtrlAsmOperand; }