| //===- MipsInstrInfo.td - Target Description for Mips Target -*- tablegen -*-=// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file contains the Mips implementation of the TargetInstrInfo class. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| |
| //===----------------------------------------------------------------------===// |
| // Mips profiles and nodes |
| //===----------------------------------------------------------------------===// |
| |
| def SDT_MipsJmpLink : SDTypeProfile<0, 1, [SDTCisVT<0, iPTR>]>; |
| def SDT_MipsCMov : SDTypeProfile<1, 4, [SDTCisSameAs<0, 1>, |
| SDTCisSameAs<1, 2>, |
| SDTCisSameAs<3, 4>, |
| SDTCisInt<4>]>; |
| def SDT_MipsCallSeqStart : SDCallSeqStart<[SDTCisVT<0, i32>]>; |
| def SDT_MipsCallSeqEnd : SDCallSeqEnd<[SDTCisVT<0, i32>, SDTCisVT<1, i32>]>; |
| def SDT_MipsMAddMSub : SDTypeProfile<0, 4, |
| [SDTCisVT<0, i32>, SDTCisSameAs<0, 1>, |
| SDTCisSameAs<1, 2>, |
| SDTCisSameAs<2, 3>]>; |
| def SDT_MipsDivRem : SDTypeProfile<0, 2, |
| [SDTCisInt<0>, |
| SDTCisSameAs<0, 1>]>; |
| |
| def SDT_MipsThreadPointer : SDTypeProfile<1, 0, [SDTCisPtrTy<0>]>; |
| |
| def SDT_Sync : SDTypeProfile<0, 1, [SDTCisVT<0, i32>]>; |
| |
| def SDT_Ext : SDTypeProfile<1, 3, [SDTCisInt<0>, SDTCisSameAs<0, 1>, |
| SDTCisVT<2, i32>, SDTCisSameAs<2, 3>]>; |
| def SDT_Ins : SDTypeProfile<1, 4, [SDTCisInt<0>, SDTCisSameAs<0, 1>, |
| SDTCisVT<2, i32>, SDTCisSameAs<2, 3>, |
| SDTCisSameAs<0, 4>]>; |
| |
| def SDTMipsLoadLR : SDTypeProfile<1, 2, |
| [SDTCisInt<0>, SDTCisPtrTy<1>, |
| SDTCisSameAs<0, 2>]>; |
| |
| // Call |
| def MipsJmpLink : SDNode<"MipsISD::JmpLink",SDT_MipsJmpLink, |
| [SDNPHasChain, SDNPOutGlue, SDNPOptInGlue, |
| SDNPVariadic]>; |
| |
| // Tail call |
| def MipsTailCall : SDNode<"MipsISD::TailCall", SDT_MipsJmpLink, |
| [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>; |
| |
| // Hi and Lo nodes are used to handle global addresses. Used on |
| // MipsISelLowering to lower stuff like GlobalAddress, ExternalSymbol |
| // static model. (nothing to do with Mips Registers Hi and Lo) |
| def MipsHi : SDNode<"MipsISD::Hi", SDTIntUnaryOp>; |
| def MipsLo : SDNode<"MipsISD::Lo", SDTIntUnaryOp>; |
| def MipsGPRel : SDNode<"MipsISD::GPRel", SDTIntUnaryOp>; |
| |
| // TlsGd node is used to handle General Dynamic TLS |
| def MipsTlsGd : SDNode<"MipsISD::TlsGd", SDTIntUnaryOp>; |
| |
| // TprelHi and TprelLo nodes are used to handle Local Exec TLS |
| def MipsTprelHi : SDNode<"MipsISD::TprelHi", SDTIntUnaryOp>; |
| def MipsTprelLo : SDNode<"MipsISD::TprelLo", SDTIntUnaryOp>; |
| |
| // Thread pointer |
| def MipsThreadPointer: SDNode<"MipsISD::ThreadPointer", SDT_MipsThreadPointer>; |
| |
| // Return |
| def MipsRet : SDNode<"MipsISD::Ret", SDTNone, |
| [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>; |
| |
| // These are target-independent nodes, but have target-specific formats. |
| def callseq_start : SDNode<"ISD::CALLSEQ_START", SDT_MipsCallSeqStart, |
| [SDNPHasChain, SDNPSideEffect, SDNPOutGlue]>; |
| def callseq_end : SDNode<"ISD::CALLSEQ_END", SDT_MipsCallSeqEnd, |
| [SDNPHasChain, SDNPSideEffect, |
| SDNPOptInGlue, SDNPOutGlue]>; |
| |
| // MAdd*/MSub* nodes |
| def MipsMAdd : SDNode<"MipsISD::MAdd", SDT_MipsMAddMSub, |
| [SDNPOptInGlue, SDNPOutGlue]>; |
| def MipsMAddu : SDNode<"MipsISD::MAddu", SDT_MipsMAddMSub, |
| [SDNPOptInGlue, SDNPOutGlue]>; |
| def MipsMSub : SDNode<"MipsISD::MSub", SDT_MipsMAddMSub, |
| [SDNPOptInGlue, SDNPOutGlue]>; |
| def MipsMSubu : SDNode<"MipsISD::MSubu", SDT_MipsMAddMSub, |
| [SDNPOptInGlue, SDNPOutGlue]>; |
| |
| // DivRem(u) nodes |
| def MipsDivRem : SDNode<"MipsISD::DivRem", SDT_MipsDivRem, |
| [SDNPOutGlue]>; |
| def MipsDivRemU : SDNode<"MipsISD::DivRemU", SDT_MipsDivRem, |
| [SDNPOutGlue]>; |
| |
| // Target constant nodes that are not part of any isel patterns and remain |
| // unchanged can cause instructions with illegal operands to be emitted. |
| // Wrapper node patterns give the instruction selector a chance to replace |
| // target constant nodes that would otherwise remain unchanged with ADDiu |
| // nodes. Without these wrapper node patterns, the following conditional move |
| // instrucion is emitted when function cmov2 in test/CodeGen/Mips/cmov.ll is |
| // compiled: |
| // movn %got(d)($gp), %got(c)($gp), $4 |
| // This instruction is illegal since movn can take only register operands. |
| |
| def MipsWrapper : SDNode<"MipsISD::Wrapper", SDTIntBinOp>; |
| |
| def MipsSync : SDNode<"MipsISD::Sync", SDT_Sync, [SDNPHasChain,SDNPSideEffect]>; |
| |
| def MipsExt : SDNode<"MipsISD::Ext", SDT_Ext>; |
| def MipsIns : SDNode<"MipsISD::Ins", SDT_Ins>; |
| |
| def MipsLWL : SDNode<"MipsISD::LWL", SDTMipsLoadLR, |
| [SDNPHasChain, SDNPMayLoad, SDNPMemOperand]>; |
| def MipsLWR : SDNode<"MipsISD::LWR", SDTMipsLoadLR, |
| [SDNPHasChain, SDNPMayLoad, SDNPMemOperand]>; |
| def MipsSWL : SDNode<"MipsISD::SWL", SDTStore, |
| [SDNPHasChain, SDNPMayStore, SDNPMemOperand]>; |
| def MipsSWR : SDNode<"MipsISD::SWR", SDTStore, |
| [SDNPHasChain, SDNPMayStore, SDNPMemOperand]>; |
| def MipsLDL : SDNode<"MipsISD::LDL", SDTMipsLoadLR, |
| [SDNPHasChain, SDNPMayLoad, SDNPMemOperand]>; |
| def MipsLDR : SDNode<"MipsISD::LDR", SDTMipsLoadLR, |
| [SDNPHasChain, SDNPMayLoad, SDNPMemOperand]>; |
| def MipsSDL : SDNode<"MipsISD::SDL", SDTStore, |
| [SDNPHasChain, SDNPMayStore, SDNPMemOperand]>; |
| def MipsSDR : SDNode<"MipsISD::SDR", SDTStore, |
| [SDNPHasChain, SDNPMayStore, SDNPMemOperand]>; |
| |
| //===----------------------------------------------------------------------===// |
| // Mips Instruction Predicate Definitions. |
| //===----------------------------------------------------------------------===// |
| def HasSEInReg : Predicate<"Subtarget.hasSEInReg()">, |
| AssemblerPredicate<"FeatureSEInReg">; |
| def HasBitCount : Predicate<"Subtarget.hasBitCount()">, |
| AssemblerPredicate<"FeatureBitCount">; |
| def HasSwap : Predicate<"Subtarget.hasSwap()">, |
| AssemblerPredicate<"FeatureSwap">; |
| def HasCondMov : Predicate<"Subtarget.hasCondMov()">, |
| AssemblerPredicate<"FeatureCondMov">; |
| def HasFPIdx : Predicate<"Subtarget.hasFPIdx()">, |
| AssemblerPredicate<"FeatureFPIdx">; |
| def HasMips32 : Predicate<"Subtarget.hasMips32()">, |
| AssemblerPredicate<"FeatureMips32">; |
| def HasMips32r2 : Predicate<"Subtarget.hasMips32r2()">, |
| AssemblerPredicate<"FeatureMips32r2">; |
| def HasMips64 : Predicate<"Subtarget.hasMips64()">, |
| AssemblerPredicate<"FeatureMips64">; |
| def NotMips64 : Predicate<"!Subtarget.hasMips64()">, |
| AssemblerPredicate<"!FeatureMips64">; |
| def HasMips64r2 : Predicate<"Subtarget.hasMips64r2()">, |
| AssemblerPredicate<"FeatureMips64r2">; |
| def IsN64 : Predicate<"Subtarget.isABI_N64()">, |
| AssemblerPredicate<"FeatureN64">; |
| def NotN64 : Predicate<"!Subtarget.isABI_N64()">, |
| AssemblerPredicate<"!FeatureN64">; |
| def InMips16Mode : Predicate<"Subtarget.inMips16Mode()">, |
| AssemblerPredicate<"FeatureMips16">; |
| def RelocStatic : Predicate<"TM.getRelocationModel() == Reloc::Static">, |
| AssemblerPredicate<"FeatureMips32">; |
| def RelocPIC : Predicate<"TM.getRelocationModel() == Reloc::PIC_">, |
| AssemblerPredicate<"FeatureMips32">; |
| def NoNaNsFPMath : Predicate<"TM.Options.NoNaNsFPMath">, |
| AssemblerPredicate<"FeatureMips32">; |
| def HasStdEnc : Predicate<"Subtarget.hasStandardEncoding()">, |
| AssemblerPredicate<"!FeatureMips16">; |
| |
| class MipsPat<dag pattern, dag result> : Pat<pattern, result> { |
| let Predicates = [HasStdEnc]; |
| } |
| |
| class IsCommutable { |
| bit isCommutable = 1; |
| } |
| |
| class IsBranch { |
| bit isBranch = 1; |
| } |
| |
| class IsReturn { |
| bit isReturn = 1; |
| } |
| |
| class IsCall { |
| bit isCall = 1; |
| } |
| |
| class IsTailCall { |
| bit isCall = 1; |
| bit isTerminator = 1; |
| bit isReturn = 1; |
| bit isBarrier = 1; |
| bit hasExtraSrcRegAllocReq = 1; |
| bit isCodeGenOnly = 1; |
| } |
| |
| class IsAsCheapAsAMove { |
| bit isAsCheapAsAMove = 1; |
| } |
| |
| class NeverHasSideEffects { |
| bit neverHasSideEffects = 1; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Instruction format superclass |
| //===----------------------------------------------------------------------===// |
| |
| include "MipsInstrFormats.td" |
| |
| //===----------------------------------------------------------------------===// |
| // Mips Operand, Complex Patterns and Transformations Definitions. |
| //===----------------------------------------------------------------------===// |
| |
| // Instruction operand types |
| def jmptarget : Operand<OtherVT> { |
| let EncoderMethod = "getJumpTargetOpValue"; |
| } |
| def brtarget : Operand<OtherVT> { |
| let EncoderMethod = "getBranchTargetOpValue"; |
| let OperandType = "OPERAND_PCREL"; |
| let DecoderMethod = "DecodeBranchTarget"; |
| } |
| def calltarget : Operand<iPTR> { |
| let EncoderMethod = "getJumpTargetOpValue"; |
| } |
| def calltarget64: Operand<i64>; |
| def simm16 : Operand<i32> { |
| let DecoderMethod= "DecodeSimm16"; |
| } |
| |
| def simm20 : Operand<i32> { |
| } |
| |
| def simm16_64 : Operand<i64>; |
| def shamt : Operand<i32>; |
| |
| // Unsigned Operand |
| def uimm16 : Operand<i32> { |
| let PrintMethod = "printUnsignedImm"; |
| } |
| |
| def MipsMemAsmOperand : AsmOperandClass { |
| let Name = "Mem"; |
| let ParserMethod = "parseMemOperand"; |
| } |
| |
| // Address operand |
| def mem : Operand<i32> { |
| let PrintMethod = "printMemOperand"; |
| let MIOperandInfo = (ops CPURegs, simm16); |
| let EncoderMethod = "getMemEncoding"; |
| let ParserMatchClass = MipsMemAsmOperand; |
| } |
| |
| def mem64 : Operand<i64> { |
| let PrintMethod = "printMemOperand"; |
| let MIOperandInfo = (ops CPU64Regs, simm16_64); |
| let EncoderMethod = "getMemEncoding"; |
| let ParserMatchClass = MipsMemAsmOperand; |
| } |
| |
| def mem_ea : Operand<i32> { |
| let PrintMethod = "printMemOperandEA"; |
| let MIOperandInfo = (ops CPURegs, simm16); |
| let EncoderMethod = "getMemEncoding"; |
| } |
| |
| def mem_ea_64 : Operand<i64> { |
| let PrintMethod = "printMemOperandEA"; |
| let MIOperandInfo = (ops CPU64Regs, simm16_64); |
| let EncoderMethod = "getMemEncoding"; |
| } |
| |
| // size operand of ext instruction |
| def size_ext : Operand<i32> { |
| let EncoderMethod = "getSizeExtEncoding"; |
| let DecoderMethod = "DecodeExtSize"; |
| } |
| |
| // size operand of ins instruction |
| def size_ins : Operand<i32> { |
| let EncoderMethod = "getSizeInsEncoding"; |
| let DecoderMethod = "DecodeInsSize"; |
| } |
| |
| // Transformation Function - get the lower 16 bits. |
| def LO16 : SDNodeXForm<imm, [{ |
| return getImm(N, N->getZExtValue() & 0xFFFF); |
| }]>; |
| |
| // Transformation Function - get the higher 16 bits. |
| def HI16 : SDNodeXForm<imm, [{ |
| return getImm(N, (N->getZExtValue() >> 16) & 0xFFFF); |
| }]>; |
| |
| // Plus 1. |
| def Plus1 : SDNodeXForm<imm, [{ return getImm(N, N->getSExtValue() + 1); }]>; |
| |
| // Node immediate fits as 16-bit sign extended on target immediate. |
| // e.g. addi, andi |
| def immSExt8 : PatLeaf<(imm), [{ return isInt<8>(N->getSExtValue()); }]>; |
| |
| // Node immediate fits as 16-bit sign extended on target immediate. |
| // e.g. addi, andi |
| def immSExt16 : PatLeaf<(imm), [{ return isInt<16>(N->getSExtValue()); }]>; |
| |
| // Node immediate fits as 15-bit sign extended on target immediate. |
| // e.g. addi, andi |
| def immSExt15 : PatLeaf<(imm), [{ return isInt<15>(N->getSExtValue()); }]>; |
| |
| // Node immediate fits as 16-bit zero extended on target immediate. |
| // The LO16 param means that only the lower 16 bits of the node |
| // immediate are caught. |
| // e.g. addiu, sltiu |
| def immZExt16 : PatLeaf<(imm), [{ |
| if (N->getValueType(0) == MVT::i32) |
| return (uint32_t)N->getZExtValue() == (unsigned short)N->getZExtValue(); |
| else |
| return (uint64_t)N->getZExtValue() == (unsigned short)N->getZExtValue(); |
| }], LO16>; |
| |
| // Immediate can be loaded with LUi (32-bit int with lower 16-bit cleared). |
| def immLow16Zero : PatLeaf<(imm), [{ |
| int64_t Val = N->getSExtValue(); |
| return isInt<32>(Val) && !(Val & 0xffff); |
| }]>; |
| |
| // shamt field must fit in 5 bits. |
| def immZExt5 : ImmLeaf<i32, [{return Imm == (Imm & 0x1f);}]>; |
| |
| // True if (N + 1) fits in 16-bit field. |
| def immSExt16Plus1 : PatLeaf<(imm), [{ |
| return isInt<17>(N->getSExtValue()) && isInt<16>(N->getSExtValue() + 1); |
| }]>; |
| |
| // Mips Address Mode! SDNode frameindex could possibily be a match |
| // since load and store instructions from stack used it. |
| def addr : |
| ComplexPattern<iPTR, 2, "selectIntAddr", [frameindex]>; |
| |
| def addrRegImm : |
| ComplexPattern<iPTR, 2, "selectAddrRegImm", [frameindex]>; |
| |
| def addrDefault : |
| ComplexPattern<iPTR, 2, "selectAddrDefault", [frameindex]>; |
| |
| //===----------------------------------------------------------------------===// |
| // Instructions specific format |
| //===----------------------------------------------------------------------===// |
| |
| // Arithmetic and logical instructions with 3 register operands. |
| class ArithLogicR<string opstr, RegisterOperand RO, bit isComm = 0, |
| InstrItinClass Itin = NoItinerary, |
| SDPatternOperator OpNode = null_frag>: |
| InstSE<(outs RO:$rd), (ins RO:$rs, RO:$rt), |
| !strconcat(opstr, "\t$rd, $rs, $rt"), |
| [(set RO:$rd, (OpNode RO:$rs, RO:$rt))], Itin, FrmR> { |
| let isCommutable = isComm; |
| let isReMaterializable = 1; |
| string BaseOpcode; |
| string Arch; |
| } |
| |
| // Arithmetic and logical instructions with 2 register operands. |
| class ArithLogicI<string opstr, Operand Od, RegisterOperand RO, |
| SDPatternOperator imm_type = null_frag, |
| SDPatternOperator OpNode = null_frag> : |
| InstSE<(outs RO:$rt), (ins RO:$rs, Od:$imm16), |
| !strconcat(opstr, "\t$rt, $rs, $imm16"), |
| [(set RO:$rt, (OpNode RO:$rs, imm_type:$imm16))], IIAlu, FrmI> { |
| let isReMaterializable = 1; |
| } |
| |
| // Arithmetic Multiply ADD/SUB |
| class MArithR<string opstr, SDPatternOperator op = null_frag, bit isComm = 0> : |
| InstSE<(outs), (ins CPURegsOpnd:$rs, CPURegsOpnd:$rt), |
| !strconcat(opstr, "\t$rs, $rt"), |
| [(op CPURegsOpnd:$rs, CPURegsOpnd:$rt, LO, HI)], IIImul, FrmR> { |
| let Defs = [HI, LO]; |
| let Uses = [HI, LO]; |
| let isCommutable = isComm; |
| } |
| |
| // Logical |
| class LogicNOR<string opstr, RegisterOperand RC>: |
| InstSE<(outs RC:$rd), (ins RC:$rs, RC:$rt), |
| !strconcat(opstr, "\t$rd, $rs, $rt"), |
| [(set RC:$rd, (not (or RC:$rs, RC:$rt)))], IIAlu, FrmR> { |
| let isCommutable = 1; |
| } |
| |
| // Shifts |
| class shift_rotate_imm<string opstr, Operand ImmOpnd, |
| RegisterOperand RC, SDPatternOperator OpNode = null_frag, |
| SDPatternOperator PF = null_frag> : |
| InstSE<(outs RC:$rd), (ins RC:$rt, ImmOpnd:$shamt), |
| !strconcat(opstr, "\t$rd, $rt, $shamt"), |
| [(set RC:$rd, (OpNode RC:$rt, PF:$shamt))], IIAlu, FrmR>; |
| |
| class shift_rotate_reg<string opstr, RegisterOperand RC, |
| SDPatternOperator OpNode = null_frag>: |
| InstSE<(outs RC:$rd), (ins CPURegsOpnd:$rs, RC:$rt), |
| !strconcat(opstr, "\t$rd, $rt, $rs"), |
| [(set RC:$rd, (OpNode RC:$rt, CPURegsOpnd:$rs))], IIAlu, FrmR>; |
| |
| // Load Upper Imediate |
| class LoadUpper<string opstr, RegisterClass RC, Operand Imm>: |
| InstSE<(outs RC:$rt), (ins Imm:$imm16), !strconcat(opstr, "\t$rt, $imm16"), |
| [], IIAlu, FrmI>, IsAsCheapAsAMove { |
| let neverHasSideEffects = 1; |
| let isReMaterializable = 1; |
| } |
| |
| class FMem<bits<6> op, dag outs, dag ins, string asmstr, list<dag> pattern, |
| InstrItinClass itin>: FFI<op, outs, ins, asmstr, pattern> { |
| bits<21> addr; |
| let Inst{25-21} = addr{20-16}; |
| let Inst{15-0} = addr{15-0}; |
| let DecoderMethod = "DecodeMem"; |
| } |
| |
| // Memory Load/Store |
| class Load<string opstr, SDPatternOperator OpNode, RegisterClass RC, |
| Operand MemOpnd> : |
| InstSE<(outs RC:$rt), (ins MemOpnd:$addr), !strconcat(opstr, "\t$rt, $addr"), |
| [(set RC:$rt, (OpNode addr:$addr))], NoItinerary, FrmI> { |
| let DecoderMethod = "DecodeMem"; |
| let canFoldAsLoad = 1; |
| } |
| |
| class Store<string opstr, SDPatternOperator OpNode, RegisterClass RC, |
| Operand MemOpnd> : |
| InstSE<(outs), (ins RC:$rt, MemOpnd:$addr), !strconcat(opstr, "\t$rt, $addr"), |
| [(OpNode RC:$rt, addr:$addr)], NoItinerary, FrmI> { |
| let DecoderMethod = "DecodeMem"; |
| } |
| |
| multiclass LoadM<string opstr, RegisterClass RC, |
| SDPatternOperator OpNode = null_frag> { |
| def NAME : Load<opstr, OpNode, RC, mem>, Requires<[NotN64, HasStdEnc]>; |
| def _P8 : Load<opstr, OpNode, RC, mem64>, Requires<[IsN64, HasStdEnc]> { |
| let DecoderNamespace = "Mips64"; |
| let isCodeGenOnly = 1; |
| } |
| } |
| |
| multiclass StoreM<string opstr, RegisterClass RC, |
| SDPatternOperator OpNode = null_frag> { |
| def NAME : Store<opstr, OpNode, RC, mem>, Requires<[NotN64, HasStdEnc]>; |
| def _P8 : Store<opstr, OpNode, RC, mem64>, Requires<[IsN64, HasStdEnc]> { |
| let DecoderNamespace = "Mips64"; |
| let isCodeGenOnly = 1; |
| } |
| } |
| |
| // Load/Store Left/Right |
| let canFoldAsLoad = 1 in |
| class LoadLeftRight<string opstr, SDNode OpNode, RegisterClass RC, |
| Operand MemOpnd> : |
| InstSE<(outs RC:$rt), (ins MemOpnd:$addr, RC:$src), |
| !strconcat(opstr, "\t$rt, $addr"), |
| [(set RC:$rt, (OpNode addr:$addr, RC:$src))], NoItinerary, FrmI> { |
| let DecoderMethod = "DecodeMem"; |
| string Constraints = "$src = $rt"; |
| } |
| |
| class StoreLeftRight<string opstr, SDNode OpNode, RegisterClass RC, |
| Operand MemOpnd>: |
| InstSE<(outs), (ins RC:$rt, MemOpnd:$addr), !strconcat(opstr, "\t$rt, $addr"), |
| [(OpNode RC:$rt, addr:$addr)], NoItinerary, FrmI> { |
| let DecoderMethod = "DecodeMem"; |
| } |
| |
| multiclass LoadLeftRightM<string opstr, SDNode OpNode, RegisterClass RC> { |
| def NAME : LoadLeftRight<opstr, OpNode, RC, mem>, |
| Requires<[NotN64, HasStdEnc]>; |
| def _P8 : LoadLeftRight<opstr, OpNode, RC, mem64>, |
| Requires<[IsN64, HasStdEnc]> { |
| let DecoderNamespace = "Mips64"; |
| let isCodeGenOnly = 1; |
| } |
| } |
| |
| multiclass StoreLeftRightM<string opstr, SDNode OpNode, RegisterClass RC> { |
| def NAME : StoreLeftRight<opstr, OpNode, RC, mem>, |
| Requires<[NotN64, HasStdEnc]>; |
| def _P8 : StoreLeftRight<opstr, OpNode, RC, mem64>, |
| Requires<[IsN64, HasStdEnc]> { |
| let DecoderNamespace = "Mips64"; |
| let isCodeGenOnly = 1; |
| } |
| } |
| |
| // Conditional Branch |
| class CBranch<string opstr, PatFrag cond_op, RegisterClass RC> : |
| InstSE<(outs), (ins RC:$rs, RC:$rt, brtarget:$offset), |
| !strconcat(opstr, "\t$rs, $rt, $offset"), |
| [(brcond (i32 (cond_op RC:$rs, RC:$rt)), bb:$offset)], IIBranch, |
| FrmI> { |
| let isBranch = 1; |
| let isTerminator = 1; |
| let hasDelaySlot = 1; |
| let Defs = [AT]; |
| } |
| |
| class CBranchZero<string opstr, PatFrag cond_op, RegisterClass RC> : |
| InstSE<(outs), (ins RC:$rs, brtarget:$offset), |
| !strconcat(opstr, "\t$rs, $offset"), |
| [(brcond (i32 (cond_op RC:$rs, 0)), bb:$offset)], IIBranch, FrmI> { |
| let isBranch = 1; |
| let isTerminator = 1; |
| let hasDelaySlot = 1; |
| let Defs = [AT]; |
| } |
| |
| // SetCC |
| class SetCC_R<string opstr, PatFrag cond_op, RegisterClass RC> : |
| InstSE<(outs CPURegsOpnd:$rd), (ins RC:$rs, RC:$rt), |
| !strconcat(opstr, "\t$rd, $rs, $rt"), |
| [(set CPURegsOpnd:$rd, (cond_op RC:$rs, RC:$rt))], IIAlu, FrmR>; |
| |
| class SetCC_I<string opstr, PatFrag cond_op, Operand Od, PatLeaf imm_type, |
| RegisterClass RC>: |
| InstSE<(outs CPURegsOpnd:$rt), (ins RC:$rs, Od:$imm16), |
| !strconcat(opstr, "\t$rt, $rs, $imm16"), |
| [(set CPURegsOpnd:$rt, (cond_op RC:$rs, imm_type:$imm16))], |
| IIAlu, FrmI>; |
| |
| // Jump |
| class JumpFJ<DAGOperand opnd, string opstr, SDPatternOperator operator, |
| SDPatternOperator targetoperator> : |
| InstSE<(outs), (ins opnd:$target), !strconcat(opstr, "\t$target"), |
| [(operator targetoperator:$target)], IIBranch, FrmJ> { |
| let isTerminator=1; |
| let isBarrier=1; |
| let hasDelaySlot = 1; |
| let DecoderMethod = "DecodeJumpTarget"; |
| let Defs = [AT]; |
| } |
| |
| // Unconditional branch |
| class UncondBranch<string opstr> : |
| InstSE<(outs), (ins brtarget:$offset), !strconcat(opstr, "\t$offset"), |
| [(br bb:$offset)], IIBranch, FrmI> { |
| let isBranch = 1; |
| let isTerminator = 1; |
| let isBarrier = 1; |
| let hasDelaySlot = 1; |
| let Predicates = [RelocPIC, HasStdEnc]; |
| let Defs = [AT]; |
| } |
| |
| // Base class for indirect branch and return instruction classes. |
| let isTerminator=1, isBarrier=1, hasDelaySlot = 1 in |
| class JumpFR<RegisterClass RC, SDPatternOperator operator = null_frag>: |
| InstSE<(outs), (ins RC:$rs), "jr\t$rs", [(operator RC:$rs)], IIBranch, FrmR>; |
| |
| // Indirect branch |
| class IndirectBranch<RegisterClass RC>: JumpFR<RC, brind> { |
| let isBranch = 1; |
| let isIndirectBranch = 1; |
| } |
| |
| // Return instruction |
| class RetBase<RegisterClass RC>: JumpFR<RC> { |
| let isReturn = 1; |
| let isCodeGenOnly = 1; |
| let hasCtrlDep = 1; |
| let hasExtraSrcRegAllocReq = 1; |
| } |
| |
| // Jump and Link (Call) |
| let isCall=1, hasDelaySlot=1, Defs = [RA] in { |
| class JumpLink<string opstr> : |
| InstSE<(outs), (ins calltarget:$target), !strconcat(opstr, "\t$target"), |
| [(MipsJmpLink imm:$target)], IIBranch, FrmJ> { |
| let DecoderMethod = "DecodeJumpTarget"; |
| } |
| |
| class JumpLinkRegPseudo<RegisterClass RC, Instruction JALRInst, |
| Register RetReg>: |
| PseudoSE<(outs), (ins RC:$rs), [(MipsJmpLink RC:$rs)], IIBranch>, |
| PseudoInstExpansion<(JALRInst RetReg, RC:$rs)>; |
| |
| class JumpLinkReg<string opstr, RegisterClass RC>: |
| InstSE<(outs RC:$rd), (ins RC:$rs), !strconcat(opstr, "\t$rd, $rs"), |
| [], IIBranch, FrmR>; |
| |
| class BGEZAL_FT<string opstr, RegisterOperand RO> : |
| InstSE<(outs), (ins RO:$rs, brtarget:$offset), |
| !strconcat(opstr, "\t$rs, $offset"), [], IIBranch, FrmI>; |
| |
| } |
| |
| class BAL_FT : |
| InstSE<(outs), (ins brtarget:$offset), "bal\t$offset", [], IIBranch, FrmI> { |
| let isBranch = 1; |
| let isTerminator = 1; |
| let isBarrier = 1; |
| let hasDelaySlot = 1; |
| let Defs = [RA]; |
| } |
| |
| // Sync |
| let hasSideEffects = 1 in |
| class SYNC_FT : |
| InstSE<(outs), (ins i32imm:$stype), "sync $stype", [(MipsSync imm:$stype)], |
| NoItinerary, FrmOther>; |
| |
| // Mul, Div |
| class Mult<string opstr, InstrItinClass itin, RegisterOperand RO, |
| list<Register> DefRegs> : |
| InstSE<(outs), (ins RO:$rs, RO:$rt), !strconcat(opstr, "\t$rs, $rt"), [], |
| itin, FrmR> { |
| let isCommutable = 1; |
| let Defs = DefRegs; |
| let neverHasSideEffects = 1; |
| } |
| |
| class Div<SDNode op, string opstr, InstrItinClass itin, RegisterOperand RO, |
| list<Register> DefRegs> : |
| InstSE<(outs), (ins RO:$rs, RO:$rt), |
| !strconcat(opstr, "\t$$zero, $rs, $rt"), [(op RO:$rs, RO:$rt)], itin, |
| FrmR> { |
| let Defs = DefRegs; |
| } |
| |
| // Move from Hi/Lo |
| class MoveFromLOHI<string opstr, RegisterClass RC, list<Register> UseRegs>: |
| InstSE<(outs RC:$rd), (ins), !strconcat(opstr, "\t$rd"), [], IIHiLo, FrmR> { |
| let Uses = UseRegs; |
| let neverHasSideEffects = 1; |
| } |
| |
| class MoveToLOHI<string opstr, RegisterClass RC, list<Register> DefRegs>: |
| InstSE<(outs), (ins RC:$rs), !strconcat(opstr, "\t$rs"), [], IIHiLo, FrmR> { |
| let Defs = DefRegs; |
| let neverHasSideEffects = 1; |
| } |
| |
| class EffectiveAddress<string opstr, RegisterClass RC, Operand Mem> : |
| InstSE<(outs RC:$rt), (ins Mem:$addr), !strconcat(opstr, "\t$rt, $addr"), |
| [(set RC:$rt, addr:$addr)], NoItinerary, FrmI> { |
| let isCodeGenOnly = 1; |
| let DecoderMethod = "DecodeMem"; |
| } |
| |
| // Count Leading Ones/Zeros in Word |
| class CountLeading0<string opstr, RegisterOperand RO>: |
| InstSE<(outs RO:$rd), (ins RO:$rs), !strconcat(opstr, "\t$rd, $rs"), |
| [(set RO:$rd, (ctlz RO:$rs))], IIAlu, FrmR>, |
| Requires<[HasBitCount, HasStdEnc]>; |
| |
| class CountLeading1<string opstr, RegisterOperand RO>: |
| InstSE<(outs RO:$rd), (ins RO:$rs), !strconcat(opstr, "\t$rd, $rs"), |
| [(set RO:$rd, (ctlz (not RO:$rs)))], IIAlu, FrmR>, |
| Requires<[HasBitCount, HasStdEnc]>; |
| |
| |
| // Sign Extend in Register. |
| class SignExtInReg<string opstr, ValueType vt, RegisterClass RC> : |
| InstSE<(outs RC:$rd), (ins RC:$rt), !strconcat(opstr, "\t$rd, $rt"), |
| [(set RC:$rd, (sext_inreg RC:$rt, vt))], NoItinerary, FrmR> { |
| let Predicates = [HasSEInReg, HasStdEnc]; |
| } |
| |
| // Subword Swap |
| class SubwordSwap<string opstr, RegisterOperand RO>: |
| InstSE<(outs RO:$rd), (ins RO:$rt), !strconcat(opstr, "\t$rd, $rt"), [], |
| NoItinerary, FrmR> { |
| let Predicates = [HasSwap, HasStdEnc]; |
| let neverHasSideEffects = 1; |
| } |
| |
| // Read Hardware |
| class ReadHardware<RegisterClass CPURegClass, RegisterOperand RO> : |
| InstSE<(outs CPURegClass:$rt), (ins RO:$rd), "rdhwr\t$rt, $rd", [], |
| IIAlu, FrmR>; |
| |
| // Ext and Ins |
| class ExtBase<string opstr, RegisterOperand RO>: |
| InstSE<(outs RO:$rt), (ins RO:$rs, uimm16:$pos, size_ext:$size), |
| !strconcat(opstr, " $rt, $rs, $pos, $size"), |
| [(set RO:$rt, (MipsExt RO:$rs, imm:$pos, imm:$size))], NoItinerary, |
| FrmR> { |
| let Predicates = [HasMips32r2, HasStdEnc]; |
| } |
| |
| class InsBase<string opstr, RegisterOperand RO>: |
| InstSE<(outs RO:$rt), (ins RO:$rs, uimm16:$pos, size_ins:$size, RO:$src), |
| !strconcat(opstr, " $rt, $rs, $pos, $size"), |
| [(set RO:$rt, (MipsIns RO:$rs, imm:$pos, imm:$size, RO:$src))], |
| NoItinerary, FrmR> { |
| let Predicates = [HasMips32r2, HasStdEnc]; |
| let Constraints = "$src = $rt"; |
| } |
| |
| // Atomic instructions with 2 source operands (ATOMIC_SWAP & ATOMIC_LOAD_*). |
| class Atomic2Ops<PatFrag Op, RegisterClass DRC, RegisterClass PRC> : |
| PseudoSE<(outs DRC:$dst), (ins PRC:$ptr, DRC:$incr), |
| [(set DRC:$dst, (Op PRC:$ptr, DRC:$incr))]>; |
| |
| multiclass Atomic2Ops32<PatFrag Op> { |
| def NAME : Atomic2Ops<Op, CPURegs, CPURegs>, Requires<[NotN64, HasStdEnc]>; |
| def _P8 : Atomic2Ops<Op, CPURegs, CPU64Regs>, |
| Requires<[IsN64, HasStdEnc]> { |
| let DecoderNamespace = "Mips64"; |
| } |
| } |
| |
| // Atomic Compare & Swap. |
| class AtomicCmpSwap<PatFrag Op, RegisterClass DRC, RegisterClass PRC> : |
| PseudoSE<(outs DRC:$dst), (ins PRC:$ptr, DRC:$cmp, DRC:$swap), |
| [(set DRC:$dst, (Op PRC:$ptr, DRC:$cmp, DRC:$swap))]>; |
| |
| multiclass AtomicCmpSwap32<PatFrag Op> { |
| def NAME : AtomicCmpSwap<Op, CPURegs, CPURegs>, |
| Requires<[NotN64, HasStdEnc]>; |
| def _P8 : AtomicCmpSwap<Op, CPURegs, CPU64Regs>, |
| Requires<[IsN64, HasStdEnc]> { |
| let DecoderNamespace = "Mips64"; |
| } |
| } |
| |
| class LLBase<string opstr, RegisterOperand RO, Operand Mem> : |
| InstSE<(outs RO:$rt), (ins Mem:$addr), !strconcat(opstr, "\t$rt, $addr"), |
| [], NoItinerary, FrmI> { |
| let DecoderMethod = "DecodeMem"; |
| let mayLoad = 1; |
| } |
| |
| class SCBase<string opstr, RegisterOperand RO, Operand Mem> : |
| InstSE<(outs RO:$dst), (ins RO:$rt, Mem:$addr), |
| !strconcat(opstr, "\t$rt, $addr"), [], NoItinerary, FrmI> { |
| let DecoderMethod = "DecodeMem"; |
| let mayStore = 1; |
| let Constraints = "$rt = $dst"; |
| } |
| |
| class MFC3OP<dag outs, dag ins, string asmstr> : |
| InstSE<outs, ins, asmstr, [], NoItinerary, FrmFR>; |
| |
| //===----------------------------------------------------------------------===// |
| // Pseudo instructions |
| //===----------------------------------------------------------------------===// |
| |
| // Return RA. |
| let isReturn=1, isTerminator=1, hasDelaySlot=1, isBarrier=1, hasCtrlDep=1 in |
| def RetRA : PseudoSE<(outs), (ins), [(MipsRet)]>; |
| |
| let Defs = [SP], Uses = [SP], hasSideEffects = 1 in { |
| def ADJCALLSTACKDOWN : MipsPseudo<(outs), (ins i32imm:$amt), |
| [(callseq_start timm:$amt)]>; |
| def ADJCALLSTACKUP : MipsPseudo<(outs), (ins i32imm:$amt1, i32imm:$amt2), |
| [(callseq_end timm:$amt1, timm:$amt2)]>; |
| } |
| |
| let usesCustomInserter = 1 in { |
| defm ATOMIC_LOAD_ADD_I8 : Atomic2Ops32<atomic_load_add_8>; |
| defm ATOMIC_LOAD_ADD_I16 : Atomic2Ops32<atomic_load_add_16>; |
| defm ATOMIC_LOAD_ADD_I32 : Atomic2Ops32<atomic_load_add_32>; |
| defm ATOMIC_LOAD_SUB_I8 : Atomic2Ops32<atomic_load_sub_8>; |
| defm ATOMIC_LOAD_SUB_I16 : Atomic2Ops32<atomic_load_sub_16>; |
| defm ATOMIC_LOAD_SUB_I32 : Atomic2Ops32<atomic_load_sub_32>; |
| defm ATOMIC_LOAD_AND_I8 : Atomic2Ops32<atomic_load_and_8>; |
| defm ATOMIC_LOAD_AND_I16 : Atomic2Ops32<atomic_load_and_16>; |
| defm ATOMIC_LOAD_AND_I32 : Atomic2Ops32<atomic_load_and_32>; |
| defm ATOMIC_LOAD_OR_I8 : Atomic2Ops32<atomic_load_or_8>; |
| defm ATOMIC_LOAD_OR_I16 : Atomic2Ops32<atomic_load_or_16>; |
| defm ATOMIC_LOAD_OR_I32 : Atomic2Ops32<atomic_load_or_32>; |
| defm ATOMIC_LOAD_XOR_I8 : Atomic2Ops32<atomic_load_xor_8>; |
| defm ATOMIC_LOAD_XOR_I16 : Atomic2Ops32<atomic_load_xor_16>; |
| defm ATOMIC_LOAD_XOR_I32 : Atomic2Ops32<atomic_load_xor_32>; |
| defm ATOMIC_LOAD_NAND_I8 : Atomic2Ops32<atomic_load_nand_8>; |
| defm ATOMIC_LOAD_NAND_I16 : Atomic2Ops32<atomic_load_nand_16>; |
| defm ATOMIC_LOAD_NAND_I32 : Atomic2Ops32<atomic_load_nand_32>; |
| |
| defm ATOMIC_SWAP_I8 : Atomic2Ops32<atomic_swap_8>; |
| defm ATOMIC_SWAP_I16 : Atomic2Ops32<atomic_swap_16>; |
| defm ATOMIC_SWAP_I32 : Atomic2Ops32<atomic_swap_32>; |
| |
| defm ATOMIC_CMP_SWAP_I8 : AtomicCmpSwap32<atomic_cmp_swap_8>; |
| defm ATOMIC_CMP_SWAP_I16 : AtomicCmpSwap32<atomic_cmp_swap_16>; |
| defm ATOMIC_CMP_SWAP_I32 : AtomicCmpSwap32<atomic_cmp_swap_32>; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Instruction definition |
| //===----------------------------------------------------------------------===// |
| //===----------------------------------------------------------------------===// |
| // MipsI Instructions |
| //===----------------------------------------------------------------------===// |
| |
| /// Arithmetic Instructions (ALU Immediate) |
| def ADDiu : ArithLogicI<"addiu", simm16, CPURegsOpnd, immSExt16, add>, |
| ADDI_FM<0x9>, IsAsCheapAsAMove; |
| def ADDi : ArithLogicI<"addi", simm16, CPURegsOpnd>, ADDI_FM<0x8>; |
| def SLTi : SetCC_I<"slti", setlt, simm16, immSExt16, CPURegs>, SLTI_FM<0xa>; |
| def SLTiu : SetCC_I<"sltiu", setult, simm16, immSExt16, CPURegs>, SLTI_FM<0xb>; |
| def ANDi : ArithLogicI<"andi", uimm16, CPURegsOpnd, immZExt16, and>, |
| ADDI_FM<0xc>; |
| def ORi : ArithLogicI<"ori", uimm16, CPURegsOpnd, immZExt16, or>, |
| ADDI_FM<0xd>; |
| def XORi : ArithLogicI<"xori", uimm16, CPURegsOpnd, immZExt16, xor>, |
| ADDI_FM<0xe>; |
| def LUi : LoadUpper<"lui", CPURegs, uimm16>, LUI_FM; |
| |
| /// Arithmetic Instructions (3-Operand, R-Type) |
| def ADDu : ArithLogicR<"addu", CPURegsOpnd, 1, IIAlu, add>, ADD_FM<0, 0x21>; |
| def SUBu : ArithLogicR<"subu", CPURegsOpnd, 0, IIAlu, sub>, ADD_FM<0, 0x23>; |
| def MUL : ArithLogicR<"mul", CPURegsOpnd, 1, IIImul, mul>, ADD_FM<0x1c, 2>; |
| def ADD : ArithLogicR<"add", CPURegsOpnd>, ADD_FM<0, 0x20>; |
| def SUB : ArithLogicR<"sub", CPURegsOpnd>, ADD_FM<0, 0x22>; |
| def SLT : SetCC_R<"slt", setlt, CPURegs>, ADD_FM<0, 0x2a>; |
| def SLTu : SetCC_R<"sltu", setult, CPURegs>, ADD_FM<0, 0x2b>; |
| def AND : ArithLogicR<"and", CPURegsOpnd, 1, IIAlu, and>, ADD_FM<0, 0x24>; |
| def OR : ArithLogicR<"or", CPURegsOpnd, 1, IIAlu, or>, ADD_FM<0, 0x25>; |
| def XOR : ArithLogicR<"xor", CPURegsOpnd, 1, IIAlu, xor>, ADD_FM<0, 0x26>; |
| def NOR : LogicNOR<"nor", CPURegsOpnd>, ADD_FM<0, 0x27>; |
| |
| /// Shift Instructions |
| def SLL : shift_rotate_imm<"sll", shamt, CPURegsOpnd, shl, immZExt5>, |
| SRA_FM<0, 0>; |
| def SRL : shift_rotate_imm<"srl", shamt, CPURegsOpnd, srl, immZExt5>, |
| SRA_FM<2, 0>; |
| def SRA : shift_rotate_imm<"sra", shamt, CPURegsOpnd, sra, immZExt5>, |
| SRA_FM<3, 0>; |
| def SLLV : shift_rotate_reg<"sllv", CPURegsOpnd, shl>, SRLV_FM<4, 0>; |
| def SRLV : shift_rotate_reg<"srlv", CPURegsOpnd, srl>, SRLV_FM<6, 0>; |
| def SRAV : shift_rotate_reg<"srav", CPURegsOpnd, sra>, SRLV_FM<7, 0>; |
| |
| // Rotate Instructions |
| let Predicates = [HasMips32r2, HasStdEnc] in { |
| def ROTR : shift_rotate_imm<"rotr", shamt, CPURegsOpnd, rotr, immZExt5>, |
| SRA_FM<2, 1>; |
| def ROTRV : shift_rotate_reg<"rotrv", CPURegsOpnd, rotr>, SRLV_FM<6, 1>; |
| } |
| |
| /// Load and Store Instructions |
| /// aligned |
| defm LB : LoadM<"lb", CPURegs, sextloadi8>, LW_FM<0x20>; |
| defm LBu : LoadM<"lbu", CPURegs, zextloadi8>, LW_FM<0x24>; |
| defm LH : LoadM<"lh", CPURegs, sextloadi16>, LW_FM<0x21>; |
| defm LHu : LoadM<"lhu", CPURegs, zextloadi16>, LW_FM<0x25>; |
| defm LW : LoadM<"lw", CPURegs, load>, LW_FM<0x23>; |
| defm SB : StoreM<"sb", CPURegs, truncstorei8>, LW_FM<0x28>; |
| defm SH : StoreM<"sh", CPURegs, truncstorei16>, LW_FM<0x29>; |
| defm SW : StoreM<"sw", CPURegs, store>, LW_FM<0x2b>; |
| |
| /// load/store left/right |
| defm LWL : LoadLeftRightM<"lwl", MipsLWL, CPURegs>, LW_FM<0x22>; |
| defm LWR : LoadLeftRightM<"lwr", MipsLWR, CPURegs>, LW_FM<0x26>; |
| defm SWL : StoreLeftRightM<"swl", MipsSWL, CPURegs>, LW_FM<0x2a>; |
| defm SWR : StoreLeftRightM<"swr", MipsSWR, CPURegs>, LW_FM<0x2e>; |
| |
| def SYNC : SYNC_FT, SYNC_FM; |
| |
| /// Load-linked, Store-conditional |
| let Predicates = [NotN64, HasStdEnc] in { |
| def LL : LLBase<"ll", CPURegsOpnd, mem>, LW_FM<0x30>; |
| def SC : SCBase<"sc", CPURegsOpnd, mem>, LW_FM<0x38>; |
| } |
| |
| let Predicates = [IsN64, HasStdEnc], DecoderNamespace = "Mips64" in { |
| def LL_P8 : LLBase<"ll", CPURegsOpnd, mem64>, LW_FM<0x30>; |
| def SC_P8 : SCBase<"sc", CPURegsOpnd, mem64>, LW_FM<0x38>; |
| } |
| |
| /// Jump and Branch Instructions |
| def J : JumpFJ<jmptarget, "j", br, bb>, FJ<2>, |
| Requires<[RelocStatic, HasStdEnc]>, IsBranch; |
| def JR : IndirectBranch<CPURegs>, MTLO_FM<8>; |
| def B : UncondBranch<"b">, B_FM; |
| def BEQ : CBranch<"beq", seteq, CPURegs>, BEQ_FM<4>; |
| def BNE : CBranch<"bne", setne, CPURegs>, BEQ_FM<5>; |
| def BGEZ : CBranchZero<"bgez", setge, CPURegs>, BGEZ_FM<1, 1>; |
| def BGTZ : CBranchZero<"bgtz", setgt, CPURegs>, BGEZ_FM<7, 0>; |
| def BLEZ : CBranchZero<"blez", setle, CPURegs>, BGEZ_FM<6, 0>; |
| def BLTZ : CBranchZero<"bltz", setlt, CPURegs>, BGEZ_FM<1, 0>; |
| |
| def BAL_BR: BAL_FT, BAL_FM; |
| |
| def JAL : JumpLink<"jal">, FJ<3>; |
| def JALR : JumpLinkReg<"jalr", CPURegs>, JALR_FM; |
| def JALRPseudo : JumpLinkRegPseudo<CPURegs, JALR, RA>; |
| def BGEZAL : BGEZAL_FT<"bgezal", CPURegsOpnd>, BGEZAL_FM<0x11>; |
| def BLTZAL : BGEZAL_FT<"bltzal", CPURegsOpnd>, BGEZAL_FM<0x10>; |
| def TAILCALL : JumpFJ<calltarget, "j", MipsTailCall, imm>, FJ<2>, IsTailCall; |
| def TAILCALL_R : JumpFR<CPURegs, MipsTailCall>, MTLO_FM<8>, IsTailCall; |
| |
| def RET : RetBase<CPURegs>, MTLO_FM<8>; |
| |
| // Exception handling related node and instructions. |
| // The conversion sequence is: |
| // ISD::EH_RETURN -> MipsISD::EH_RETURN -> |
| // MIPSeh_return -> (stack change + indirect branch) |
| // |
| // MIPSeh_return takes the place of regular return instruction |
| // but takes two arguments (V1, V0) which are used for storing |
| // the offset and return address respectively. |
| def SDT_MipsEHRET : SDTypeProfile<0, 2, [SDTCisInt<0>, SDTCisPtrTy<1>]>; |
| |
| def MIPSehret : SDNode<"MipsISD::EH_RETURN", SDT_MipsEHRET, |
| [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>; |
| |
| let Uses = [V0, V1], isTerminator = 1, isReturn = 1, isBarrier = 1 in { |
| def MIPSeh_return32 : MipsPseudo<(outs), (ins CPURegs:$spoff, CPURegs:$dst), |
| [(MIPSehret CPURegs:$spoff, CPURegs:$dst)]>; |
| def MIPSeh_return64 : MipsPseudo<(outs), (ins CPU64Regs:$spoff, |
| CPU64Regs:$dst), |
| [(MIPSehret CPU64Regs:$spoff, CPU64Regs:$dst)]>; |
| } |
| |
| /// Multiply and Divide Instructions. |
| def MULT : Mult<"mult", IIImul, CPURegsOpnd, [HI, LO]>, MULT_FM<0, 0x18>; |
| def MULTu : Mult<"multu", IIImul, CPURegsOpnd, [HI, LO]>, MULT_FM<0, 0x19>; |
| def SDIV : Div<MipsDivRem, "div", IIIdiv, CPURegsOpnd, [HI, LO]>, |
| MULT_FM<0, 0x1a>; |
| def UDIV : Div<MipsDivRemU, "divu", IIIdiv, CPURegsOpnd, [HI, LO]>, |
| MULT_FM<0, 0x1b>; |
| |
| def MTHI : MoveToLOHI<"mthi", CPURegs, [HI]>, MTLO_FM<0x11>; |
| def MTLO : MoveToLOHI<"mtlo", CPURegs, [LO]>, MTLO_FM<0x13>; |
| def MFHI : MoveFromLOHI<"mfhi", CPURegs, [HI]>, MFLO_FM<0x10>; |
| def MFLO : MoveFromLOHI<"mflo", CPURegs, [LO]>, MFLO_FM<0x12>; |
| |
| /// Sign Ext In Register Instructions. |
| def SEB : SignExtInReg<"seb", i8, CPURegs>, SEB_FM<0x10, 0x20>; |
| def SEH : SignExtInReg<"seh", i16, CPURegs>, SEB_FM<0x18, 0x20>; |
| |
| /// Count Leading |
| def CLZ : CountLeading0<"clz", CPURegsOpnd>, CLO_FM<0x20>; |
| def CLO : CountLeading1<"clo", CPURegsOpnd>, CLO_FM<0x21>; |
| |
| /// Word Swap Bytes Within Halfwords |
| def WSBH : SubwordSwap<"wsbh", CPURegsOpnd>, SEB_FM<2, 0x20>; |
| |
| /// No operation. |
| def NOP : PseudoSE<(outs), (ins), []>, PseudoInstExpansion<(SLL ZERO, ZERO, 0)>; |
| |
| // FrameIndexes are legalized when they are operands from load/store |
| // instructions. The same not happens for stack address copies, so an |
| // add op with mem ComplexPattern is used and the stack address copy |
| // can be matched. It's similar to Sparc LEA_ADDRi |
| def LEA_ADDiu : EffectiveAddress<"addiu", CPURegs, mem_ea>, LW_FM<9>; |
| |
| // MADD*/MSUB* |
| def MADD : MArithR<"madd", MipsMAdd, 1>, MULT_FM<0x1c, 0>; |
| def MADDU : MArithR<"maddu", MipsMAddu, 1>, MULT_FM<0x1c, 1>; |
| def MSUB : MArithR<"msub", MipsMSub>, MULT_FM<0x1c, 4>; |
| def MSUBU : MArithR<"msubu", MipsMSubu>, MULT_FM<0x1c, 5>; |
| |
| def RDHWR : ReadHardware<CPURegs, HWRegsOpnd>, RDHWR_FM; |
| |
| def EXT : ExtBase<"ext", CPURegsOpnd>, EXT_FM<0>; |
| def INS : InsBase<"ins", CPURegsOpnd>, EXT_FM<4>; |
| |
| /// Move Control Registers From/To CPU Registers |
| def MFC0_3OP : MFC3OP<(outs CPURegsOpnd:$rt), |
| (ins CPURegsOpnd:$rd, uimm16:$sel), |
| "mfc0\t$rt, $rd, $sel">, MFC3OP_FM<0x10, 0>; |
| |
| def MTC0_3OP : MFC3OP<(outs CPURegsOpnd:$rd, uimm16:$sel), |
| (ins CPURegsOpnd:$rt), |
| "mtc0\t$rt, $rd, $sel">, MFC3OP_FM<0x10, 4>; |
| |
| def MFC2_3OP : MFC3OP<(outs CPURegsOpnd:$rt), |
| (ins CPURegsOpnd:$rd, uimm16:$sel), |
| "mfc2\t$rt, $rd, $sel">, MFC3OP_FM<0x12, 0>; |
| |
| def MTC2_3OP : MFC3OP<(outs CPURegsOpnd:$rd, uimm16:$sel), |
| (ins CPURegsOpnd:$rt), |
| "mtc2\t$rt, $rd, $sel">, MFC3OP_FM<0x12, 4>; |
| |
| //===----------------------------------------------------------------------===// |
| // Instruction aliases |
| //===----------------------------------------------------------------------===// |
| def : InstAlias<"move $dst, $src", |
| (ADDu CPURegsOpnd:$dst, CPURegsOpnd:$src,ZERO), 1>, |
| Requires<[NotMips64]>; |
| def : InstAlias<"move $dst, $src", |
| (OR CPURegsOpnd:$dst, CPURegsOpnd:$src,ZERO), 1>, |
| Requires<[NotMips64]>; |
| def : InstAlias<"bal $offset", (BGEZAL RA, brtarget:$offset), 1>; |
| def : InstAlias<"addu $rs, $rt, $imm", |
| (ADDiu CPURegsOpnd:$rs, CPURegsOpnd:$rt, simm16:$imm), 0>; |
| def : InstAlias<"add $rs, $rt, $imm", |
| (ADDi CPURegsOpnd:$rs, CPURegsOpnd:$rt, simm16:$imm), 0>; |
| def : InstAlias<"and $rs, $rt, $imm", |
| (ANDi CPURegsOpnd:$rs, CPURegsOpnd:$rt, simm16:$imm), 0>; |
| def : InstAlias<"j $rs", (JR CPURegs:$rs), 0>, |
| Requires<[NotMips64]>; |
| def : InstAlias<"jalr $rs", (JALR RA, CPURegs:$rs)>, Requires<[NotMips64]>; |
| def : InstAlias<"not $rt, $rs", |
| (NOR CPURegsOpnd:$rt, CPURegsOpnd:$rs, ZERO), 1>; |
| def : InstAlias<"neg $rt, $rs", |
| (SUB CPURegsOpnd:$rt, ZERO, CPURegsOpnd:$rs), 1>; |
| def : InstAlias<"negu $rt, $rs", |
| (SUBu CPURegsOpnd:$rt, ZERO, CPURegsOpnd:$rs), 1>; |
| def : InstAlias<"slt $rs, $rt, $imm", |
| (SLTi CPURegsOpnd:$rs, CPURegs:$rt, simm16:$imm), 0>; |
| def : InstAlias<"xor $rs, $rt, $imm", |
| (XORi CPURegsOpnd:$rs, CPURegsOpnd:$rt, simm16:$imm), 0>, |
| Requires<[NotMips64]>; |
| def : InstAlias<"nop", (SLL ZERO, ZERO, 0), 1>; |
| def : InstAlias<"mfc0 $rt, $rd", |
| (MFC0_3OP CPURegsOpnd:$rt, CPURegsOpnd:$rd, 0), 0>; |
| def : InstAlias<"mtc0 $rt, $rd", |
| (MTC0_3OP CPURegsOpnd:$rd, 0, CPURegsOpnd:$rt), 0>; |
| def : InstAlias<"mfc2 $rt, $rd", |
| (MFC2_3OP CPURegsOpnd:$rt, CPURegsOpnd:$rd, 0), 0>; |
| def : InstAlias<"mtc2 $rt, $rd", |
| (MTC2_3OP CPURegsOpnd:$rd, 0, CPURegsOpnd:$rt), 0>; |
| |
| //===----------------------------------------------------------------------===// |
| // Assembler Pseudo Instructions |
| //===----------------------------------------------------------------------===// |
| |
| class LoadImm32< string instr_asm, Operand Od, RegisterOperand RO> : |
| MipsAsmPseudoInst<(outs RO:$rt), (ins Od:$imm32), |
| !strconcat(instr_asm, "\t$rt, $imm32")> ; |
| def LoadImm32Reg : LoadImm32<"li", shamt,CPURegsOpnd>; |
| |
| class LoadAddress<string instr_asm, Operand MemOpnd, RegisterOperand RO> : |
| MipsAsmPseudoInst<(outs RO:$rt), (ins MemOpnd:$addr), |
| !strconcat(instr_asm, "\t$rt, $addr")> ; |
| def LoadAddr32Reg : LoadAddress<"la", mem, CPURegsOpnd>; |
| |
| class LoadAddressImm<string instr_asm, Operand Od, RegisterOperand RO> : |
| MipsAsmPseudoInst<(outs RO:$rt), (ins Od:$imm32), |
| !strconcat(instr_asm, "\t$rt, $imm32")> ; |
| def LoadAddr32Imm : LoadAddressImm<"la", shamt,CPURegsOpnd>; |
| |
| |
| |
| //===----------------------------------------------------------------------===// |
| // Arbitrary patterns that map to one or more instructions |
| //===----------------------------------------------------------------------===// |
| |
| // Small immediates |
| def : MipsPat<(i32 immSExt16:$in), |
| (ADDiu ZERO, imm:$in)>; |
| def : MipsPat<(i32 immZExt16:$in), |
| (ORi ZERO, imm:$in)>; |
| def : MipsPat<(i32 immLow16Zero:$in), |
| (LUi (HI16 imm:$in))>; |
| |
| // Arbitrary immediates |
| def : MipsPat<(i32 imm:$imm), |
| (ORi (LUi (HI16 imm:$imm)), (LO16 imm:$imm))>; |
| |
| // Carry MipsPatterns |
| def : MipsPat<(subc CPURegs:$lhs, CPURegs:$rhs), |
| (SUBu CPURegs:$lhs, CPURegs:$rhs)>; |
| def : MipsPat<(addc CPURegs:$lhs, CPURegs:$rhs), |
| (ADDu CPURegs:$lhs, CPURegs:$rhs)>; |
| def : MipsPat<(addc CPURegs:$src, immSExt16:$imm), |
| (ADDiu CPURegs:$src, imm:$imm)>; |
| |
| // Call |
| def : MipsPat<(MipsJmpLink (i32 tglobaladdr:$dst)), |
| (JAL tglobaladdr:$dst)>; |
| def : MipsPat<(MipsJmpLink (i32 texternalsym:$dst)), |
| (JAL texternalsym:$dst)>; |
| //def : MipsPat<(MipsJmpLink CPURegs:$dst), |
| // (JALR CPURegs:$dst)>; |
| |
| // Tail call |
| def : MipsPat<(MipsTailCall (iPTR tglobaladdr:$dst)), |
| (TAILCALL tglobaladdr:$dst)>; |
| def : MipsPat<(MipsTailCall (iPTR texternalsym:$dst)), |
| (TAILCALL texternalsym:$dst)>; |
| // hi/lo relocs |
| def : MipsPat<(MipsHi tglobaladdr:$in), (LUi tglobaladdr:$in)>; |
| def : MipsPat<(MipsHi tblockaddress:$in), (LUi tblockaddress:$in)>; |
| def : MipsPat<(MipsHi tjumptable:$in), (LUi tjumptable:$in)>; |
| def : MipsPat<(MipsHi tconstpool:$in), (LUi tconstpool:$in)>; |
| def : MipsPat<(MipsHi tglobaltlsaddr:$in), (LUi tglobaltlsaddr:$in)>; |
| def : MipsPat<(MipsHi texternalsym:$in), (LUi texternalsym:$in)>; |
| |
| def : MipsPat<(MipsLo tglobaladdr:$in), (ADDiu ZERO, tglobaladdr:$in)>; |
| def : MipsPat<(MipsLo tblockaddress:$in), (ADDiu ZERO, tblockaddress:$in)>; |
| def : MipsPat<(MipsLo tjumptable:$in), (ADDiu ZERO, tjumptable:$in)>; |
| def : MipsPat<(MipsLo tconstpool:$in), (ADDiu ZERO, tconstpool:$in)>; |
| def : MipsPat<(MipsLo tglobaltlsaddr:$in), (ADDiu ZERO, tglobaltlsaddr:$in)>; |
| def : MipsPat<(MipsLo texternalsym:$in), (ADDiu ZERO, texternalsym:$in)>; |
| |
| def : MipsPat<(add CPURegs:$hi, (MipsLo tglobaladdr:$lo)), |
| (ADDiu CPURegs:$hi, tglobaladdr:$lo)>; |
| def : MipsPat<(add CPURegs:$hi, (MipsLo tblockaddress:$lo)), |
| (ADDiu CPURegs:$hi, tblockaddress:$lo)>; |
| def : MipsPat<(add CPURegs:$hi, (MipsLo tjumptable:$lo)), |
| (ADDiu CPURegs:$hi, tjumptable:$lo)>; |
| def : MipsPat<(add CPURegs:$hi, (MipsLo tconstpool:$lo)), |
| (ADDiu CPURegs:$hi, tconstpool:$lo)>; |
| def : MipsPat<(add CPURegs:$hi, (MipsLo tglobaltlsaddr:$lo)), |
| (ADDiu CPURegs:$hi, tglobaltlsaddr:$lo)>; |
| |
| // gp_rel relocs |
| def : MipsPat<(add CPURegs:$gp, (MipsGPRel tglobaladdr:$in)), |
| (ADDiu CPURegs:$gp, tglobaladdr:$in)>; |
| def : MipsPat<(add CPURegs:$gp, (MipsGPRel tconstpool:$in)), |
| (ADDiu CPURegs:$gp, tconstpool:$in)>; |
| |
| // wrapper_pic |
| class WrapperPat<SDNode node, Instruction ADDiuOp, RegisterClass RC>: |
| MipsPat<(MipsWrapper RC:$gp, node:$in), |
| (ADDiuOp RC:$gp, node:$in)>; |
| |
| def : WrapperPat<tglobaladdr, ADDiu, CPURegs>; |
| def : WrapperPat<tconstpool, ADDiu, CPURegs>; |
| def : WrapperPat<texternalsym, ADDiu, CPURegs>; |
| def : WrapperPat<tblockaddress, ADDiu, CPURegs>; |
| def : WrapperPat<tjumptable, ADDiu, CPURegs>; |
| def : WrapperPat<tglobaltlsaddr, ADDiu, CPURegs>; |
| |
| // Mips does not have "not", so we expand our way |
| def : MipsPat<(not CPURegs:$in), |
| (NOR CPURegsOpnd:$in, ZERO)>; |
| |
| // extended loads |
| let Predicates = [NotN64, HasStdEnc] in { |
| def : MipsPat<(i32 (extloadi1 addr:$src)), (LBu addr:$src)>; |
| def : MipsPat<(i32 (extloadi8 addr:$src)), (LBu addr:$src)>; |
| def : MipsPat<(i32 (extloadi16 addr:$src)), (LHu addr:$src)>; |
| } |
| let Predicates = [IsN64, HasStdEnc] in { |
| def : MipsPat<(i32 (extloadi1 addr:$src)), (LBu_P8 addr:$src)>; |
| def : MipsPat<(i32 (extloadi8 addr:$src)), (LBu_P8 addr:$src)>; |
| def : MipsPat<(i32 (extloadi16 addr:$src)), (LHu_P8 addr:$src)>; |
| } |
| |
| // peepholes |
| let Predicates = [NotN64, HasStdEnc] in { |
| def : MipsPat<(store (i32 0), addr:$dst), (SW ZERO, addr:$dst)>; |
| } |
| let Predicates = [IsN64, HasStdEnc] in { |
| def : MipsPat<(store (i32 0), addr:$dst), (SW_P8 ZERO, addr:$dst)>; |
| } |
| |
| // brcond patterns |
| multiclass BrcondPats<RegisterClass RC, Instruction BEQOp, Instruction BNEOp, |
| Instruction SLTOp, Instruction SLTuOp, Instruction SLTiOp, |
| Instruction SLTiuOp, Register ZEROReg> { |
| def : MipsPat<(brcond (i32 (setne RC:$lhs, 0)), bb:$dst), |
| (BNEOp RC:$lhs, ZEROReg, bb:$dst)>; |
| def : MipsPat<(brcond (i32 (seteq RC:$lhs, 0)), bb:$dst), |
| (BEQOp RC:$lhs, ZEROReg, bb:$dst)>; |
| |
| def : MipsPat<(brcond (i32 (setge RC:$lhs, RC:$rhs)), bb:$dst), |
| (BEQ (SLTOp RC:$lhs, RC:$rhs), ZERO, bb:$dst)>; |
| def : MipsPat<(brcond (i32 (setuge RC:$lhs, RC:$rhs)), bb:$dst), |
| (BEQ (SLTuOp RC:$lhs, RC:$rhs), ZERO, bb:$dst)>; |
| def : MipsPat<(brcond (i32 (setge RC:$lhs, immSExt16:$rhs)), bb:$dst), |
| (BEQ (SLTiOp RC:$lhs, immSExt16:$rhs), ZERO, bb:$dst)>; |
| def : MipsPat<(brcond (i32 (setuge RC:$lhs, immSExt16:$rhs)), bb:$dst), |
| (BEQ (SLTiuOp RC:$lhs, immSExt16:$rhs), ZERO, bb:$dst)>; |
| |
| def : MipsPat<(brcond (i32 (setle RC:$lhs, RC:$rhs)), bb:$dst), |
| (BEQ (SLTOp RC:$rhs, RC:$lhs), ZERO, bb:$dst)>; |
| def : MipsPat<(brcond (i32 (setule RC:$lhs, RC:$rhs)), bb:$dst), |
| (BEQ (SLTuOp RC:$rhs, RC:$lhs), ZERO, bb:$dst)>; |
| |
| def : MipsPat<(brcond RC:$cond, bb:$dst), |
| (BNEOp RC:$cond, ZEROReg, bb:$dst)>; |
| } |
| |
| defm : BrcondPats<CPURegs, BEQ, BNE, SLT, SLTu, SLTi, SLTiu, ZERO>; |
| |
| // setcc patterns |
| multiclass SeteqPats<RegisterClass RC, Instruction SLTiuOp, Instruction XOROp, |
| Instruction SLTuOp, Register ZEROReg> { |
| def : MipsPat<(seteq RC:$lhs, RC:$rhs), |
| (SLTiuOp (XOROp RC:$lhs, RC:$rhs), 1)>; |
| def : MipsPat<(setne RC:$lhs, RC:$rhs), |
| (SLTuOp ZEROReg, (XOROp RC:$lhs, RC:$rhs))>; |
| } |
| |
| multiclass SetlePats<RegisterClass RC, Instruction SLTOp, Instruction SLTuOp> { |
| def : MipsPat<(setle RC:$lhs, RC:$rhs), |
| (XORi (SLTOp RC:$rhs, RC:$lhs), 1)>; |
| def : MipsPat<(setule RC:$lhs, RC:$rhs), |
| (XORi (SLTuOp RC:$rhs, RC:$lhs), 1)>; |
| } |
| |
| multiclass SetgtPats<RegisterClass RC, Instruction SLTOp, Instruction SLTuOp> { |
| def : MipsPat<(setgt RC:$lhs, RC:$rhs), |
| (SLTOp RC:$rhs, RC:$lhs)>; |
| def : MipsPat<(setugt RC:$lhs, RC:$rhs), |
| (SLTuOp RC:$rhs, RC:$lhs)>; |
| } |
| |
| multiclass SetgePats<RegisterClass RC, Instruction SLTOp, Instruction SLTuOp> { |
| def : MipsPat<(setge RC:$lhs, RC:$rhs), |
| (XORi (SLTOp RC:$lhs, RC:$rhs), 1)>; |
| def : MipsPat<(setuge RC:$lhs, RC:$rhs), |
| (XORi (SLTuOp RC:$lhs, RC:$rhs), 1)>; |
| } |
| |
| multiclass SetgeImmPats<RegisterClass RC, Instruction SLTiOp, |
| Instruction SLTiuOp> { |
| def : MipsPat<(setge RC:$lhs, immSExt16:$rhs), |
| (XORi (SLTiOp RC:$lhs, immSExt16:$rhs), 1)>; |
| def : MipsPat<(setuge RC:$lhs, immSExt16:$rhs), |
| (XORi (SLTiuOp RC:$lhs, immSExt16:$rhs), 1)>; |
| } |
| |
| defm : SeteqPats<CPURegs, SLTiu, XOR, SLTu, ZERO>; |
| defm : SetlePats<CPURegs, SLT, SLTu>; |
| defm : SetgtPats<CPURegs, SLT, SLTu>; |
| defm : SetgePats<CPURegs, SLT, SLTu>; |
| defm : SetgeImmPats<CPURegs, SLTi, SLTiu>; |
| |
| // bswap pattern |
| def : MipsPat<(bswap CPURegs:$rt), (ROTR (WSBH CPURegs:$rt), 16)>; |
| |
| //===----------------------------------------------------------------------===// |
| // Floating Point Support |
| //===----------------------------------------------------------------------===// |
| |
| include "MipsInstrFPU.td" |
| include "Mips64InstrInfo.td" |
| include "MipsCondMov.td" |
| |
| // |
| // Mips16 |
| |
| include "Mips16InstrFormats.td" |
| include "Mips16InstrInfo.td" |
| |
| // DSP |
| include "MipsDSPInstrFormats.td" |
| include "MipsDSPInstrInfo.td" |
| |
