| //===- 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. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| //===----------------------------------------------------------------------===// |
| // Instruction format superclass |
| //===----------------------------------------------------------------------===// |
| |
| include "MipsInstrFormats.td" |
| |
| //===----------------------------------------------------------------------===// |
| // Mips profiles and nodes |
| //===----------------------------------------------------------------------===// |
| |
| def SDT_MipsRet : SDTypeProfile<0, 1, [SDTCisInt<0>]>; |
| 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_MipsDynAlloc : SDTypeProfile<1, 1, [SDTCisVT<0, iPTR>, |
| SDTCisSameAs<0, 1>]>; |
| 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>]>; |
| |
| // Call |
| def MipsJmpLink : SDNode<"MipsISD::JmpLink",SDT_MipsJmpLink, |
| [SDNPHasChain, SDNPOutGlue, 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", SDT_MipsRet, [SDNPHasChain, |
| SDNPOptInGlue]>; |
| |
| // These are target-independent nodes, but have target-specific formats. |
| def callseq_start : SDNode<"ISD::CALLSEQ_START", SDT_MipsCallSeqStart, |
| [SDNPHasChain, SDNPOutGlue]>; |
| def callseq_end : SDNode<"ISD::CALLSEQ_END", SDT_MipsCallSeqEnd, |
| [SDNPHasChain, 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>; |
| |
| // Pointer to dynamically allocated stack area. |
| def MipsDynAlloc : SDNode<"MipsISD::DynAlloc", SDT_MipsDynAlloc, |
| [SDNPHasChain, SDNPInGlue]>; |
| |
| def MipsSync : SDNode<"MipsISD::Sync", SDT_Sync, [SDNPHasChain]>; |
| |
| def MipsExt : SDNode<"MipsISD::Ext", SDT_Ext>; |
| def MipsIns : SDNode<"MipsISD::Ins", SDT_Ins>; |
| |
| //===----------------------------------------------------------------------===// |
| // Mips Instruction Predicate Definitions. |
| //===----------------------------------------------------------------------===// |
| def HasSEInReg : Predicate<"Subtarget.hasSEInReg()">; |
| def HasBitCount : Predicate<"Subtarget.hasBitCount()">; |
| def HasSwap : Predicate<"Subtarget.hasSwap()">; |
| def HasCondMov : Predicate<"Subtarget.hasCondMov()">; |
| def HasMips32 : Predicate<"Subtarget.hasMips32()">; |
| def HasMips32r2 : Predicate<"Subtarget.hasMips32r2()">; |
| def HasMips64 : Predicate<"Subtarget.hasMips64()">; |
| def HasMips32r2Or64 : Predicate<"Subtarget.hasMips32r2Or64()">; |
| def NotMips64 : Predicate<"!Subtarget.hasMips64()">; |
| def HasMips64r2 : Predicate<"Subtarget.hasMips64r2()">; |
| def IsN64 : Predicate<"Subtarget.isABI_N64()">; |
| def NotN64 : Predicate<"!Subtarget.isABI_N64()">; |
| def RelocStatic : Predicate<"TM.getRelocationModel() == Reloc::Static">; |
| def RelocPIC : Predicate<"TM.getRelocationModel() == Reloc::PIC_">; |
| def NoNaNsFPMath : Predicate<"TM.Options.NoNaNsFPMath">; |
| |
| //===----------------------------------------------------------------------===// |
| // 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"; |
| } |
| def calltarget : Operand<iPTR> { |
| let EncoderMethod = "getJumpTargetOpValue"; |
| } |
| def calltarget64: Operand<i64>; |
| def simm16 : Operand<i32>; |
| def simm16_64 : Operand<i64>; |
| def shamt : Operand<i32>; |
| |
| // Unsigned Operand |
| def uimm16 : Operand<i32> { |
| let PrintMethod = "printUnsignedImm"; |
| } |
| |
| // Address operand |
| def mem : Operand<i32> { |
| let PrintMethod = "printMemOperand"; |
| let MIOperandInfo = (ops CPURegs, simm16); |
| let EncoderMethod = "getMemEncoding"; |
| } |
| |
| def mem64 : Operand<i64> { |
| let PrintMethod = "printMemOperand"; |
| let MIOperandInfo = (ops CPU64Regs, simm16_64); |
| } |
| |
| 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"; |
| } |
| |
| // size operand of ins instruction |
| def size_ins : Operand<i32> { |
| let EncoderMethod = "getSizeInsEncoding"; |
| } |
| |
| // 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); |
| }]>; |
| |
| // 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 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);}]>; |
| |
| // Mips Address Mode! SDNode frameindex could possibily be a match |
| // since load and store instructions from stack used it. |
| def addr : ComplexPattern<iPTR, 2, "SelectAddr", [frameindex], [SDNPWantParent]>; |
| |
| //===----------------------------------------------------------------------===// |
| // Pattern fragment for load/store |
| //===----------------------------------------------------------------------===// |
| class UnalignedLoad<PatFrag Node> : |
| PatFrag<(ops node:$ptr), (Node node:$ptr), [{ |
| LoadSDNode *LD = cast<LoadSDNode>(N); |
| return LD->getMemoryVT().getSizeInBits()/8 > LD->getAlignment(); |
| }]>; |
| |
| class AlignedLoad<PatFrag Node> : |
| PatFrag<(ops node:$ptr), (Node node:$ptr), [{ |
| LoadSDNode *LD = cast<LoadSDNode>(N); |
| return LD->getMemoryVT().getSizeInBits()/8 <= LD->getAlignment(); |
| }]>; |
| |
| class UnalignedStore<PatFrag Node> : |
| PatFrag<(ops node:$val, node:$ptr), (Node node:$val, node:$ptr), [{ |
| StoreSDNode *SD = cast<StoreSDNode>(N); |
| return SD->getMemoryVT().getSizeInBits()/8 > SD->getAlignment(); |
| }]>; |
| |
| class AlignedStore<PatFrag Node> : |
| PatFrag<(ops node:$val, node:$ptr), (Node node:$val, node:$ptr), [{ |
| StoreSDNode *SD = cast<StoreSDNode>(N); |
| return SD->getMemoryVT().getSizeInBits()/8 <= SD->getAlignment(); |
| }]>; |
| |
| // Load/Store PatFrags. |
| def sextloadi16_a : AlignedLoad<sextloadi16>; |
| def zextloadi16_a : AlignedLoad<zextloadi16>; |
| def extloadi16_a : AlignedLoad<extloadi16>; |
| def load_a : AlignedLoad<load>; |
| def sextloadi32_a : AlignedLoad<sextloadi32>; |
| def zextloadi32_a : AlignedLoad<zextloadi32>; |
| def extloadi32_a : AlignedLoad<extloadi32>; |
| def truncstorei16_a : AlignedStore<truncstorei16>; |
| def store_a : AlignedStore<store>; |
| def truncstorei32_a : AlignedStore<truncstorei32>; |
| def sextloadi16_u : UnalignedLoad<sextloadi16>; |
| def zextloadi16_u : UnalignedLoad<zextloadi16>; |
| def extloadi16_u : UnalignedLoad<extloadi16>; |
| def load_u : UnalignedLoad<load>; |
| def sextloadi32_u : UnalignedLoad<sextloadi32>; |
| def zextloadi32_u : UnalignedLoad<zextloadi32>; |
| def extloadi32_u : UnalignedLoad<extloadi32>; |
| def truncstorei16_u : UnalignedStore<truncstorei16>; |
| def store_u : UnalignedStore<store>; |
| def truncstorei32_u : UnalignedStore<truncstorei32>; |
| |
| //===----------------------------------------------------------------------===// |
| // Instructions specific format |
| //===----------------------------------------------------------------------===// |
| |
| // Arithmetic and logical instructions with 3 register operands. |
| class ArithLogicR<bits<6> op, bits<6> func, string instr_asm, SDNode OpNode, |
| InstrItinClass itin, RegisterClass RC, bit isComm = 0>: |
| FR<op, func, (outs RC:$rd), (ins RC:$rs, RC:$rt), |
| !strconcat(instr_asm, "\t$rd, $rs, $rt"), |
| [(set RC:$rd, (OpNode RC:$rs, RC:$rt))], itin> { |
| let shamt = 0; |
| let isCommutable = isComm; |
| } |
| |
| class ArithOverflowR<bits<6> op, bits<6> func, string instr_asm, |
| InstrItinClass itin, RegisterClass RC, bit isComm = 0>: |
| FR<op, func, (outs RC:$rd), (ins RC:$rs, RC:$rt), |
| !strconcat(instr_asm, "\t$rd, $rs, $rt"), [], itin> { |
| let shamt = 0; |
| let isCommutable = isComm; |
| } |
| |
| // Arithmetic and logical instructions with 2 register operands. |
| class ArithLogicI<bits<6> op, string instr_asm, SDNode OpNode, |
| Operand Od, PatLeaf imm_type, RegisterClass RC> : |
| FI<op, (outs RC:$rt), (ins RC:$rs, Od:$imm16), |
| !strconcat(instr_asm, "\t$rt, $rs, $imm16"), |
| [(set RC:$rt, (OpNode RC:$rs, imm_type:$imm16))], IIAlu>; |
| |
| class ArithOverflowI<bits<6> op, string instr_asm, SDNode OpNode, |
| Operand Od, PatLeaf imm_type, RegisterClass RC> : |
| FI<op, (outs RC:$rt), (ins RC:$rs, Od:$imm16), |
| !strconcat(instr_asm, "\t$rt, $rs, $imm16"), [], IIAlu>; |
| |
| // Arithmetic Multiply ADD/SUB |
| let rd = 0, shamt = 0, Defs = [HI, LO], Uses = [HI, LO] in |
| class MArithR<bits<6> func, string instr_asm, SDNode op, bit isComm = 0> : |
| FR<0x1c, func, (outs), (ins CPURegs:$rs, CPURegs:$rt), |
| !strconcat(instr_asm, "\t$rs, $rt"), |
| [(op CPURegs:$rs, CPURegs:$rt, LO, HI)], IIImul> { |
| let rd = 0; |
| let shamt = 0; |
| let isCommutable = isComm; |
| } |
| |
| // Logical |
| class LogicNOR<bits<6> op, bits<6> func, string instr_asm, RegisterClass RC>: |
| FR<op, func, (outs RC:$rd), (ins RC:$rs, RC:$rt), |
| !strconcat(instr_asm, "\t$rd, $rs, $rt"), |
| [(set RC:$rd, (not (or RC:$rs, RC:$rt)))], IIAlu> { |
| let shamt = 0; |
| let isCommutable = 1; |
| } |
| |
| // Shifts |
| class shift_rotate_imm<bits<6> func, bits<5> isRotate, string instr_asm, |
| SDNode OpNode, PatFrag PF, Operand ImmOpnd, |
| RegisterClass RC>: |
| FR<0x00, func, (outs RC:$rd), (ins RC:$rt, ImmOpnd:$shamt), |
| !strconcat(instr_asm, "\t$rd, $rt, $shamt"), |
| [(set RC:$rd, (OpNode RC:$rt, PF:$shamt))], IIAlu> { |
| let rs = isRotate; |
| } |
| |
| // 32-bit shift instructions. |
| class shift_rotate_imm32<bits<6> func, bits<5> isRotate, string instr_asm, |
| SDNode OpNode>: |
| shift_rotate_imm<func, isRotate, instr_asm, OpNode, immZExt5, shamt, CPURegs>; |
| |
| class shift_rotate_reg<bits<6> func, bits<5> isRotate, string instr_asm, |
| SDNode OpNode, RegisterClass RC>: |
| FR<0x00, func, (outs RC:$rd), (ins CPURegs:$rs, RC:$rt), |
| !strconcat(instr_asm, "\t$rd, $rt, $rs"), |
| [(set RC:$rd, (OpNode RC:$rt, CPURegs:$rs))], IIAlu> { |
| let shamt = isRotate; |
| } |
| |
| // Load Upper Imediate |
| class LoadUpper<bits<6> op, string instr_asm, RegisterClass RC, Operand Imm>: |
| FI<op, (outs RC:$rt), (ins Imm:$imm16), |
| !strconcat(instr_asm, "\t$rt, $imm16"), [], IIAlu> { |
| let rs = 0; |
| } |
| |
| class FMem<bits<6> op, dag outs, dag ins, string asmstr, list<dag> pattern, |
| InstrItinClass itin>: FFI<op, outs, ins, asmstr, pattern> { |
| bits<21> addr; |
| let Inst{25-21} = addr{20-16}; |
| let Inst{15-0} = addr{15-0}; |
| } |
| |
| // Memory Load/Store |
| let canFoldAsLoad = 1 in |
| class LoadM<bits<6> op, string instr_asm, PatFrag OpNode, RegisterClass RC, |
| Operand MemOpnd, bit Pseudo>: |
| FMem<op, (outs RC:$rt), (ins MemOpnd:$addr), |
| !strconcat(instr_asm, "\t$rt, $addr"), |
| [(set RC:$rt, (OpNode addr:$addr))], IILoad> { |
| let isPseudo = Pseudo; |
| } |
| |
| class StoreM<bits<6> op, string instr_asm, PatFrag OpNode, RegisterClass RC, |
| Operand MemOpnd, bit Pseudo>: |
| FMem<op, (outs), (ins RC:$rt, MemOpnd:$addr), |
| !strconcat(instr_asm, "\t$rt, $addr"), |
| [(OpNode RC:$rt, addr:$addr)], IIStore> { |
| let isPseudo = Pseudo; |
| } |
| |
| // Unaligned Memory Load/Store |
| let canFoldAsLoad = 1 in |
| class LoadUnAlign<bits<6> op, RegisterClass RC, Operand MemOpnd>: |
| FMem<op, (outs RC:$rt), (ins MemOpnd:$addr), "", [], IILoad> {} |
| |
| class StoreUnAlign<bits<6> op, RegisterClass RC, Operand MemOpnd>: |
| FMem<op, (outs), (ins RC:$rt, MemOpnd:$addr), "", [], IIStore> {} |
| |
| // 32-bit load. |
| multiclass LoadM32<bits<6> op, string instr_asm, PatFrag OpNode, |
| bit Pseudo = 0> { |
| def #NAME# : LoadM<op, instr_asm, OpNode, CPURegs, mem, Pseudo>, |
| Requires<[NotN64]>; |
| def _P8 : LoadM<op, instr_asm, OpNode, CPURegs, mem64, Pseudo>, |
| Requires<[IsN64]>; |
| } |
| |
| // 64-bit load. |
| multiclass LoadM64<bits<6> op, string instr_asm, PatFrag OpNode, |
| bit Pseudo = 0> { |
| def #NAME# : LoadM<op, instr_asm, OpNode, CPU64Regs, mem, Pseudo>, |
| Requires<[NotN64]>; |
| def _P8 : LoadM<op, instr_asm, OpNode, CPU64Regs, mem64, Pseudo>, |
| Requires<[IsN64]>; |
| } |
| |
| // 32-bit load. |
| multiclass LoadUnAlign32<bits<6> op> { |
| def #NAME# : LoadUnAlign<op, CPURegs, mem>, |
| Requires<[NotN64]>; |
| def _P8 : LoadUnAlign<op, CPURegs, mem64>, |
| Requires<[IsN64]>; |
| } |
| // 32-bit store. |
| multiclass StoreM32<bits<6> op, string instr_asm, PatFrag OpNode, |
| bit Pseudo = 0> { |
| def #NAME# : StoreM<op, instr_asm, OpNode, CPURegs, mem, Pseudo>, |
| Requires<[NotN64]>; |
| def _P8 : StoreM<op, instr_asm, OpNode, CPURegs, mem64, Pseudo>, |
| Requires<[IsN64]>; |
| } |
| |
| // 64-bit store. |
| multiclass StoreM64<bits<6> op, string instr_asm, PatFrag OpNode, |
| bit Pseudo = 0> { |
| def #NAME# : StoreM<op, instr_asm, OpNode, CPU64Regs, mem, Pseudo>, |
| Requires<[NotN64]>; |
| def _P8 : StoreM<op, instr_asm, OpNode, CPU64Regs, mem64, Pseudo>, |
| Requires<[IsN64]>; |
| } |
| |
| // 32-bit store. |
| multiclass StoreUnAlign32<bits<6> op> { |
| def #NAME# : StoreUnAlign<op, CPURegs, mem>, |
| Requires<[NotN64]>; |
| def _P8 : StoreUnAlign<op, CPURegs, mem64>, |
| Requires<[IsN64]>; |
| } |
| |
| // Conditional Branch |
| class CBranch<bits<6> op, string instr_asm, PatFrag cond_op, RegisterClass RC>: |
| BranchBase<op, (outs), (ins RC:$rs, RC:$rt, brtarget:$imm16), |
| !strconcat(instr_asm, "\t$rs, $rt, $imm16"), |
| [(brcond (i32 (cond_op RC:$rs, RC:$rt)), bb:$imm16)], IIBranch> { |
| let isBranch = 1; |
| let isTerminator = 1; |
| let hasDelaySlot = 1; |
| } |
| |
| class CBranchZero<bits<6> op, bits<5> _rt, string instr_asm, PatFrag cond_op, |
| RegisterClass RC>: |
| BranchBase<op, (outs), (ins RC:$rs, brtarget:$imm16), |
| !strconcat(instr_asm, "\t$rs, $imm16"), |
| [(brcond (i32 (cond_op RC:$rs, 0)), bb:$imm16)], IIBranch> { |
| let rt = _rt; |
| let isBranch = 1; |
| let isTerminator = 1; |
| let hasDelaySlot = 1; |
| } |
| |
| // SetCC |
| class SetCC_R<bits<6> op, bits<6> func, string instr_asm, PatFrag cond_op, |
| RegisterClass RC>: |
| FR<op, func, (outs CPURegs:$rd), (ins RC:$rs, RC:$rt), |
| !strconcat(instr_asm, "\t$rd, $rs, $rt"), |
| [(set CPURegs:$rd, (cond_op RC:$rs, RC:$rt))], |
| IIAlu> { |
| let shamt = 0; |
| } |
| |
| class SetCC_I<bits<6> op, string instr_asm, PatFrag cond_op, Operand Od, |
| PatLeaf imm_type, RegisterClass RC>: |
| FI<op, (outs CPURegs:$rt), (ins RC:$rs, Od:$imm16), |
| !strconcat(instr_asm, "\t$rt, $rs, $imm16"), |
| [(set CPURegs:$rt, (cond_op RC:$rs, imm_type:$imm16))], |
| IIAlu>; |
| |
| // Jump |
| class JumpFJ<bits<6> op, string instr_asm>: |
| FJ<op, (outs), (ins jmptarget:$target), |
| !strconcat(instr_asm, "\t$target"), [(br bb:$target)], IIBranch> { |
| let isBranch=1; |
| let isTerminator=1; |
| let isBarrier=1; |
| let hasDelaySlot = 1; |
| let Predicates = [RelocStatic]; |
| } |
| |
| // Unconditional branch |
| class UncondBranch<bits<6> op, string instr_asm>: |
| BranchBase<op, (outs), (ins brtarget:$imm16), |
| !strconcat(instr_asm, "\t$imm16"), [(br bb:$imm16)], IIBranch> { |
| let rs = 0; |
| let rt = 0; |
| let isBranch = 1; |
| let isTerminator = 1; |
| let isBarrier = 1; |
| let hasDelaySlot = 1; |
| let Predicates = [RelocPIC]; |
| } |
| |
| let isBranch=1, isTerminator=1, isBarrier=1, rd=0, hasDelaySlot = 1, |
| isIndirectBranch = 1 in |
| class JumpFR<bits<6> op, bits<6> func, string instr_asm, RegisterClass RC>: |
| FR<op, func, (outs), (ins RC:$rs), |
| !strconcat(instr_asm, "\t$rs"), [(brind RC:$rs)], IIBranch> { |
| let rt = 0; |
| let rd = 0; |
| let shamt = 0; |
| } |
| |
| // Jump and Link (Call) |
| let isCall=1, hasDelaySlot=1 in { |
| class JumpLink<bits<6> op, string instr_asm>: |
| FJ<op, (outs), (ins calltarget:$target, variable_ops), |
| !strconcat(instr_asm, "\t$target"), [(MipsJmpLink imm:$target)], |
| IIBranch>; |
| |
| class JumpLinkReg<bits<6> op, bits<6> func, string instr_asm, |
| RegisterClass RC>: |
| FR<op, func, (outs), (ins RC:$rs, variable_ops), |
| !strconcat(instr_asm, "\t$rs"), [(MipsJmpLink RC:$rs)], IIBranch> { |
| let rt = 0; |
| let rd = 31; |
| let shamt = 0; |
| } |
| |
| class BranchLink<string instr_asm, bits<5> _rt, RegisterClass RC>: |
| FI<0x1, (outs), (ins RC:$rs, brtarget:$imm16, variable_ops), |
| !strconcat(instr_asm, "\t$rs, $imm16"), [], IIBranch> { |
| let rt = _rt; |
| } |
| } |
| |
| // Mul, Div |
| class Mult<bits<6> func, string instr_asm, InstrItinClass itin, |
| RegisterClass RC, list<Register> DefRegs>: |
| FR<0x00, func, (outs), (ins RC:$rs, RC:$rt), |
| !strconcat(instr_asm, "\t$rs, $rt"), [], itin> { |
| let rd = 0; |
| let shamt = 0; |
| let isCommutable = 1; |
| let Defs = DefRegs; |
| } |
| |
| class Mult32<bits<6> func, string instr_asm, InstrItinClass itin>: |
| Mult<func, instr_asm, itin, CPURegs, [HI, LO]>; |
| |
| class Div<SDNode op, bits<6> func, string instr_asm, InstrItinClass itin, |
| RegisterClass RC, list<Register> DefRegs>: |
| FR<0x00, func, (outs), (ins RC:$rs, RC:$rt), |
| !strconcat(instr_asm, "\t$$zero, $rs, $rt"), |
| [(op RC:$rs, RC:$rt)], itin> { |
| let rd = 0; |
| let shamt = 0; |
| let Defs = DefRegs; |
| } |
| |
| class Div32<SDNode op, bits<6> func, string instr_asm, InstrItinClass itin>: |
| Div<op, func, instr_asm, itin, CPURegs, [HI, LO]>; |
| |
| // Move from Hi/Lo |
| class MoveFromLOHI<bits<6> func, string instr_asm, RegisterClass RC, |
| list<Register> UseRegs>: |
| FR<0x00, func, (outs RC:$rd), (ins), |
| !strconcat(instr_asm, "\t$rd"), [], IIHiLo> { |
| let rs = 0; |
| let rt = 0; |
| let shamt = 0; |
| let Uses = UseRegs; |
| } |
| |
| class MoveToLOHI<bits<6> func, string instr_asm, RegisterClass RC, |
| list<Register> DefRegs>: |
| FR<0x00, func, (outs), (ins RC:$rs), |
| !strconcat(instr_asm, "\t$rs"), [], IIHiLo> { |
| let rt = 0; |
| let rd = 0; |
| let shamt = 0; |
| let Defs = DefRegs; |
| } |
| |
| class EffectiveAddress<string instr_asm, RegisterClass RC, Operand Mem> : |
| FMem<0x09, (outs RC:$rt), (ins Mem:$addr), |
| instr_asm, [(set RC:$rt, addr:$addr)], IIAlu>; |
| |
| // Count Leading Ones/Zeros in Word |
| class CountLeading0<bits<6> func, string instr_asm, RegisterClass RC>: |
| FR<0x1c, func, (outs RC:$rd), (ins RC:$rs), |
| !strconcat(instr_asm, "\t$rd, $rs"), |
| [(set RC:$rd, (ctlz RC:$rs))], IIAlu>, |
| Requires<[HasBitCount]> { |
| let shamt = 0; |
| let rt = rd; |
| } |
| |
| class CountLeading1<bits<6> func, string instr_asm, RegisterClass RC>: |
| FR<0x1c, func, (outs RC:$rd), (ins RC:$rs), |
| !strconcat(instr_asm, "\t$rd, $rs"), |
| [(set RC:$rd, (ctlz (not RC:$rs)))], IIAlu>, |
| Requires<[HasBitCount]> { |
| let shamt = 0; |
| let rt = rd; |
| } |
| |
| // Sign Extend in Register. |
| class SignExtInReg<bits<5> sa, string instr_asm, ValueType vt, |
| RegisterClass RC>: |
| FR<0x1f, 0x20, (outs RC:$rd), (ins RC:$rt), |
| !strconcat(instr_asm, "\t$rd, $rt"), |
| [(set RC:$rd, (sext_inreg RC:$rt, vt))], NoItinerary> { |
| let rs = 0; |
| let shamt = sa; |
| let Predicates = [HasSEInReg]; |
| } |
| |
| // Subword Swap |
| class SubwordSwap<bits<6> func, bits<5> sa, string instr_asm, RegisterClass RC>: |
| FR<0x1f, func, (outs RC:$rd), (ins RC:$rt), |
| !strconcat(instr_asm, "\t$rd, $rt"), [], NoItinerary> { |
| let rs = 0; |
| let shamt = sa; |
| let Predicates = [HasSwap]; |
| } |
| |
| // Read Hardware |
| class ReadHardware<RegisterClass CPURegClass, RegisterClass HWRegClass> |
| : FR<0x1f, 0x3b, (outs CPURegClass:$rt), (ins HWRegClass:$rd), |
| "rdhwr\t$rt, $rd", [], IIAlu> { |
| let rs = 0; |
| let shamt = 0; |
| } |
| |
| // Ext and Ins |
| class ExtBase<bits<6> _funct, string instr_asm, RegisterClass RC>: |
| FR<0x1f, _funct, (outs RC:$rt), (ins RC:$rs, uimm16:$pos, size_ext:$sz), |
| !strconcat(instr_asm, " $rt, $rs, $pos, $sz"), |
| [(set RC:$rt, (MipsExt RC:$rs, imm:$pos, imm:$sz))], NoItinerary> { |
| bits<5> pos; |
| bits<5> sz; |
| let rd = sz; |
| let shamt = pos; |
| let Predicates = [HasMips32r2]; |
| } |
| |
| class InsBase<bits<6> _funct, string instr_asm, RegisterClass RC>: |
| FR<0x1f, _funct, (outs RC:$rt), |
| (ins RC:$rs, uimm16:$pos, size_ins:$sz, RC:$src), |
| !strconcat(instr_asm, " $rt, $rs, $pos, $sz"), |
| [(set RC:$rt, (MipsIns RC:$rs, imm:$pos, imm:$sz, RC:$src))], |
| NoItinerary> { |
| bits<5> pos; |
| bits<5> sz; |
| let rd = sz; |
| let shamt = pos; |
| let Predicates = [HasMips32r2]; |
| let Constraints = "$src = $rt"; |
| } |
| |
| // Atomic instructions with 2 source operands (ATOMIC_SWAP & ATOMIC_LOAD_*). |
| class Atomic2Ops<PatFrag Op, string Opstr, RegisterClass DRC, |
| RegisterClass PRC> : |
| MipsPseudo<(outs DRC:$dst), (ins PRC:$ptr, DRC:$incr), |
| !strconcat("atomic_", Opstr, "\t$dst, $ptr, $incr"), |
| [(set DRC:$dst, (Op PRC:$ptr, DRC:$incr))]>; |
| |
| multiclass Atomic2Ops32<PatFrag Op, string Opstr> { |
| def #NAME# : Atomic2Ops<Op, Opstr, CPURegs, CPURegs>, Requires<[NotN64]>; |
| def _P8 : Atomic2Ops<Op, Opstr, CPURegs, CPU64Regs>, Requires<[IsN64]>; |
| } |
| |
| // Atomic Compare & Swap. |
| class AtomicCmpSwap<PatFrag Op, string Width, RegisterClass DRC, |
| RegisterClass PRC> : |
| MipsPseudo<(outs DRC:$dst), (ins PRC:$ptr, DRC:$cmp, DRC:$swap), |
| !strconcat("atomic_cmp_swap_", Width, "\t$dst, $ptr, $cmp, $swap"), |
| [(set DRC:$dst, (Op PRC:$ptr, DRC:$cmp, DRC:$swap))]>; |
| |
| multiclass AtomicCmpSwap32<PatFrag Op, string Width> { |
| def #NAME# : AtomicCmpSwap<Op, Width, CPURegs, CPURegs>, Requires<[NotN64]>; |
| def _P8 : AtomicCmpSwap<Op, Width, CPURegs, CPU64Regs>, Requires<[IsN64]>; |
| } |
| |
| class LLBase<bits<6> Opc, string opstring, RegisterClass RC, Operand Mem> : |
| FMem<Opc, (outs RC:$rt), (ins Mem:$addr), |
| !strconcat(opstring, "\t$rt, $addr"), [], IILoad> { |
| let mayLoad = 1; |
| } |
| |
| class SCBase<bits<6> Opc, string opstring, RegisterClass RC, Operand Mem> : |
| FMem<Opc, (outs RC:$dst), (ins RC:$rt, Mem:$addr), |
| !strconcat(opstring, "\t$rt, $addr"), [], IIStore> { |
| let mayStore = 1; |
| let Constraints = "$rt = $dst"; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Pseudo instructions |
| //===----------------------------------------------------------------------===// |
| |
| // As stack alignment is always done with addiu, we need a 16-bit immediate |
| let Defs = [SP], Uses = [SP] in { |
| def ADJCALLSTACKDOWN : MipsPseudo<(outs), (ins uimm16:$amt), |
| "!ADJCALLSTACKDOWN $amt", |
| [(callseq_start timm:$amt)]>; |
| def ADJCALLSTACKUP : MipsPseudo<(outs), (ins uimm16:$amt1, uimm16:$amt2), |
| "!ADJCALLSTACKUP $amt1", |
| [(callseq_end timm:$amt1, timm:$amt2)]>; |
| } |
| |
| // Some assembly macros need to avoid pseudoinstructions and assembler |
| // automatic reodering, we should reorder ourselves. |
| def MACRO : MipsPseudo<(outs), (ins), ".set\tmacro", []>; |
| def REORDER : MipsPseudo<(outs), (ins), ".set\treorder", []>; |
| def NOMACRO : MipsPseudo<(outs), (ins), ".set\tnomacro", []>; |
| def NOREORDER : MipsPseudo<(outs), (ins), ".set\tnoreorder", []>; |
| |
| // These macros are inserted to prevent GAS from complaining |
| // when using the AT register. |
| def NOAT : MipsPseudo<(outs), (ins), ".set\tnoat", []>; |
| def ATMACRO : MipsPseudo<(outs), (ins), ".set\tat", []>; |
| |
| // When handling PIC code the assembler needs .cpload and .cprestore |
| // directives. If the real instructions corresponding these directives |
| // are used, we have the same behavior, but get also a bunch of warnings |
| // from the assembler. |
| def CPLOAD : MipsPseudo<(outs), (ins CPURegs:$picreg), ".cpload\t$picreg", []>; |
| def CPRESTORE : MipsPseudo<(outs), (ins i32imm:$loc), ".cprestore\t$loc", []>; |
| |
| // For O32 ABI & PIC & non-fixed global base register, the following instruction |
| // seqeunce is emitted to set the global base register: |
| // |
| // 0. lui $2, %hi(_gp_disp) |
| // 1. addiu $2, $2, %lo(_gp_disp) |
| // 2. addu $globalbasereg, $2, $t9 |
| // |
| // SETGP01 is emitted during Prologue/Epilogue insertion and then converted to |
| // instructions 0 and 1 in the sequence above during MC lowering. |
| // SETGP2 is emitted just before register allocation and converted to |
| // instruction 2 just prior to post-RA scheduling. |
| |
| def SETGP01 : MipsPseudo<(outs CPURegs:$dst), (ins), "", []>; |
| def SETGP2 : MipsPseudo<(outs CPURegs:$globalreg), (ins CPURegs:$picreg), "", |
| []>; |
| |
| let usesCustomInserter = 1 in { |
| defm ATOMIC_LOAD_ADD_I8 : Atomic2Ops32<atomic_load_add_8, "load_add_8">; |
| defm ATOMIC_LOAD_ADD_I16 : Atomic2Ops32<atomic_load_add_16, "load_add_16">; |
| defm ATOMIC_LOAD_ADD_I32 : Atomic2Ops32<atomic_load_add_32, "load_add_32">; |
| defm ATOMIC_LOAD_SUB_I8 : Atomic2Ops32<atomic_load_sub_8, "load_sub_8">; |
| defm ATOMIC_LOAD_SUB_I16 : Atomic2Ops32<atomic_load_sub_16, "load_sub_16">; |
| defm ATOMIC_LOAD_SUB_I32 : Atomic2Ops32<atomic_load_sub_32, "load_sub_32">; |
| defm ATOMIC_LOAD_AND_I8 : Atomic2Ops32<atomic_load_and_8, "load_and_8">; |
| defm ATOMIC_LOAD_AND_I16 : Atomic2Ops32<atomic_load_and_16, "load_and_16">; |
| defm ATOMIC_LOAD_AND_I32 : Atomic2Ops32<atomic_load_and_32, "load_and_32">; |
| defm ATOMIC_LOAD_OR_I8 : Atomic2Ops32<atomic_load_or_8, "load_or_8">; |
| defm ATOMIC_LOAD_OR_I16 : Atomic2Ops32<atomic_load_or_16, "load_or_16">; |
| defm ATOMIC_LOAD_OR_I32 : Atomic2Ops32<atomic_load_or_32, "load_or_32">; |
| defm ATOMIC_LOAD_XOR_I8 : Atomic2Ops32<atomic_load_xor_8, "load_xor_8">; |
| defm ATOMIC_LOAD_XOR_I16 : Atomic2Ops32<atomic_load_xor_16, "load_xor_16">; |
| defm ATOMIC_LOAD_XOR_I32 : Atomic2Ops32<atomic_load_xor_32, "load_xor_32">; |
| defm ATOMIC_LOAD_NAND_I8 : Atomic2Ops32<atomic_load_nand_8, "load_nand_8">; |
| defm ATOMIC_LOAD_NAND_I16 : Atomic2Ops32<atomic_load_nand_16, "load_nand_16">; |
| defm ATOMIC_LOAD_NAND_I32 : Atomic2Ops32<atomic_load_nand_32, "load_nand_32">; |
| |
| defm ATOMIC_SWAP_I8 : Atomic2Ops32<atomic_swap_8, "swap_8">; |
| defm ATOMIC_SWAP_I16 : Atomic2Ops32<atomic_swap_16, "swap_16">; |
| defm ATOMIC_SWAP_I32 : Atomic2Ops32<atomic_swap_32, "swap_32">; |
| |
| defm ATOMIC_CMP_SWAP_I8 : AtomicCmpSwap32<atomic_cmp_swap_8, "8">; |
| defm ATOMIC_CMP_SWAP_I16 : AtomicCmpSwap32<atomic_cmp_swap_16, "16">; |
| defm ATOMIC_CMP_SWAP_I32 : AtomicCmpSwap32<atomic_cmp_swap_32, "32">; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Instruction definition |
| //===----------------------------------------------------------------------===// |
| |
| //===----------------------------------------------------------------------===// |
| // MipsI Instructions |
| //===----------------------------------------------------------------------===// |
| |
| /// Arithmetic Instructions (ALU Immediate) |
| def ADDiu : ArithLogicI<0x09, "addiu", add, simm16, immSExt16, CPURegs>; |
| def ADDi : ArithOverflowI<0x08, "addi", add, simm16, immSExt16, CPURegs>; |
| def SLTi : SetCC_I<0x0a, "slti", setlt, simm16, immSExt16, CPURegs>; |
| def SLTiu : SetCC_I<0x0b, "sltiu", setult, simm16, immSExt16, CPURegs>; |
| def ANDi : ArithLogicI<0x0c, "andi", and, uimm16, immZExt16, CPURegs>; |
| def ORi : ArithLogicI<0x0d, "ori", or, uimm16, immZExt16, CPURegs>; |
| def XORi : ArithLogicI<0x0e, "xori", xor, uimm16, immZExt16, CPURegs>; |
| def LUi : LoadUpper<0x0f, "lui", CPURegs, uimm16>; |
| |
| /// Arithmetic Instructions (3-Operand, R-Type) |
| def ADDu : ArithLogicR<0x00, 0x21, "addu", add, IIAlu, CPURegs, 1>; |
| def SUBu : ArithLogicR<0x00, 0x23, "subu", sub, IIAlu, CPURegs>; |
| def ADD : ArithOverflowR<0x00, 0x20, "add", IIAlu, CPURegs, 1>; |
| def SUB : ArithOverflowR<0x00, 0x22, "sub", IIAlu, CPURegs>; |
| def SLT : SetCC_R<0x00, 0x2a, "slt", setlt, CPURegs>; |
| def SLTu : SetCC_R<0x00, 0x2b, "sltu", setult, CPURegs>; |
| def AND : ArithLogicR<0x00, 0x24, "and", and, IIAlu, CPURegs, 1>; |
| def OR : ArithLogicR<0x00, 0x25, "or", or, IIAlu, CPURegs, 1>; |
| def XOR : ArithLogicR<0x00, 0x26, "xor", xor, IIAlu, CPURegs, 1>; |
| def NOR : LogicNOR<0x00, 0x27, "nor", CPURegs>; |
| |
| /// Shift Instructions |
| def SLL : shift_rotate_imm32<0x00, 0x00, "sll", shl>; |
| def SRL : shift_rotate_imm32<0x02, 0x00, "srl", srl>; |
| def SRA : shift_rotate_imm32<0x03, 0x00, "sra", sra>; |
| def SLLV : shift_rotate_reg<0x04, 0x00, "sllv", shl, CPURegs>; |
| def SRLV : shift_rotate_reg<0x06, 0x00, "srlv", srl, CPURegs>; |
| def SRAV : shift_rotate_reg<0x07, 0x00, "srav", sra, CPURegs>; |
| |
| // Rotate Instructions |
| let Predicates = [HasMips32r2] in { |
| def ROTR : shift_rotate_imm32<0x02, 0x01, "rotr", rotr>; |
| def ROTRV : shift_rotate_reg<0x06, 0x01, "rotrv", rotr, CPURegs>; |
| } |
| |
| /// Load and Store Instructions |
| /// aligned |
| defm LB : LoadM32<0x20, "lb", sextloadi8>; |
| defm LBu : LoadM32<0x24, "lbu", zextloadi8>; |
| defm LH : LoadM32<0x21, "lh", sextloadi16_a>; |
| defm LHu : LoadM32<0x25, "lhu", zextloadi16_a>; |
| defm LW : LoadM32<0x23, "lw", load_a>; |
| defm SB : StoreM32<0x28, "sb", truncstorei8>; |
| defm SH : StoreM32<0x29, "sh", truncstorei16_a>; |
| defm SW : StoreM32<0x2b, "sw", store_a>; |
| |
| /// unaligned |
| defm ULH : LoadM32<0x21, "ulh", sextloadi16_u, 1>; |
| defm ULHu : LoadM32<0x25, "ulhu", zextloadi16_u, 1>; |
| defm ULW : LoadM32<0x23, "ulw", load_u, 1>; |
| defm USH : StoreM32<0x29, "ush", truncstorei16_u, 1>; |
| defm USW : StoreM32<0x2b, "usw", store_u, 1>; |
| |
| /// Primitives for unaligned |
| defm LWL : LoadUnAlign32<0x22>; |
| defm LWR : LoadUnAlign32<0x26>; |
| defm SWL : StoreUnAlign32<0x2A>; |
| defm SWR : StoreUnAlign32<0x2E>; |
| |
| let hasSideEffects = 1 in |
| def SYNC : MipsInst<(outs), (ins i32imm:$stype), "sync $stype", |
| [(MipsSync imm:$stype)], NoItinerary, FrmOther> |
| { |
| bits<5> stype; |
| let Opcode = 0; |
| let Inst{25-11} = 0; |
| let Inst{10-6} = stype; |
| let Inst{5-0} = 15; |
| } |
| |
| /// Load-linked, Store-conditional |
| def LL : LLBase<0x30, "ll", CPURegs, mem>, Requires<[NotN64]>; |
| def LL_P8 : LLBase<0x30, "ll", CPURegs, mem64>, Requires<[IsN64]>; |
| def SC : SCBase<0x38, "sc", CPURegs, mem>, Requires<[NotN64]>; |
| def SC_P8 : SCBase<0x38, "sc", CPURegs, mem64>, Requires<[IsN64]>; |
| |
| /// Jump and Branch Instructions |
| def J : JumpFJ<0x02, "j">; |
| def JR : JumpFR<0x00, 0x08, "jr", CPURegs>; |
| def B : UncondBranch<0x04, "b">; |
| def BEQ : CBranch<0x04, "beq", seteq, CPURegs>; |
| def BNE : CBranch<0x05, "bne", setne, CPURegs>; |
| def BGEZ : CBranchZero<0x01, 1, "bgez", setge, CPURegs>; |
| def BGTZ : CBranchZero<0x07, 0, "bgtz", setgt, CPURegs>; |
| def BLEZ : CBranchZero<0x06, 0, "blez", setle, CPURegs>; |
| def BLTZ : CBranchZero<0x01, 0, "bltz", setlt, CPURegs>; |
| |
| // All calls clobber the non-callee saved registers... |
| let Defs = [AT, V0, V1, A0, A1, A2, A3, T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, |
| K0, K1, GP, D0, D1, D2, D3, D4, D5, D6, D7, D8, D9] in { |
| def JAL : JumpLink<0x03, "jal">; |
| def JALR : JumpLinkReg<0x00, 0x09, "jalr", CPURegs>; |
| def BGEZAL : BranchLink<"bgezal", 0x11, CPURegs>; |
| def BLTZAL : BranchLink<"bltzal", 0x10, CPURegs>; |
| } |
| |
| let isReturn=1, isTerminator=1, hasDelaySlot=1, |
| isBarrier=1, hasCtrlDep=1, rd=0, rt=0, shamt=0 in |
| def RET : FR <0x00, 0x08, (outs), (ins CPURegs:$target), |
| "jr\t$target", [(MipsRet CPURegs:$target)], IIBranch>; |
| |
| /// Multiply and Divide Instructions. |
| def MULT : Mult32<0x18, "mult", IIImul>; |
| def MULTu : Mult32<0x19, "multu", IIImul>; |
| def SDIV : Div32<MipsDivRem, 0x1a, "div", IIIdiv>; |
| def UDIV : Div32<MipsDivRemU, 0x1b, "divu", IIIdiv>; |
| |
| def MTHI : MoveToLOHI<0x11, "mthi", CPURegs, [HI]>; |
| def MTLO : MoveToLOHI<0x13, "mtlo", CPURegs, [LO]>; |
| def MFHI : MoveFromLOHI<0x10, "mfhi", CPURegs, [HI]>; |
| def MFLO : MoveFromLOHI<0x12, "mflo", CPURegs, [LO]>; |
| |
| /// Sign Ext In Register Instructions. |
| def SEB : SignExtInReg<0x10, "seb", i8, CPURegs>; |
| def SEH : SignExtInReg<0x18, "seh", i16, CPURegs>; |
| |
| /// Count Leading |
| def CLZ : CountLeading0<0x20, "clz", CPURegs>; |
| def CLO : CountLeading1<0x21, "clo", CPURegs>; |
| |
| /// Word Swap Bytes Within Halfwords |
| def WSBH : SubwordSwap<0x20, 0x2, "wsbh", CPURegs>; |
| |
| /// No operation |
| let addr=0 in |
| def NOP : FJ<0, (outs), (ins), "nop", [], IIAlu>; |
| |
| // FrameIndexes are legalized when they are operands from load/store |
| // instructions. The same not happens for stack address copies, so an |
| // add op with mem ComplexPattern is used and the stack address copy |
| // can be matched. It's similar to Sparc LEA_ADDRi |
| def LEA_ADDiu : EffectiveAddress<"addiu\t$rt, $addr", CPURegs, mem_ea>; |
| |
| // DynAlloc node points to dynamically allocated stack space. |
| // $sp is added to the list of implicitly used registers to prevent dead code |
| // elimination from removing instructions that modify $sp. |
| let Uses = [SP] in |
| def DynAlloc : EffectiveAddress<"addiu\t$rt, $addr", CPURegs, mem_ea>; |
| |
| // MADD*/MSUB* |
| def MADD : MArithR<0, "madd", MipsMAdd, 1>; |
| def MADDU : MArithR<1, "maddu", MipsMAddu, 1>; |
| def MSUB : MArithR<4, "msub", MipsMSub>; |
| def MSUBU : MArithR<5, "msubu", MipsMSubu>; |
| |
| // MUL is a assembly macro in the current used ISAs. In recent ISA's |
| // it is a real instruction. |
| def MUL : ArithLogicR<0x1c, 0x02, "mul", mul, IIImul, CPURegs, 1>, |
| Requires<[HasMips32]>; |
| |
| def RDHWR : ReadHardware<CPURegs, HWRegs>; |
| |
| def EXT : ExtBase<0, "ext", CPURegs>; |
| def INS : InsBase<4, "ins", CPURegs>; |
| |
| //===----------------------------------------------------------------------===// |
| // Arbitrary patterns that map to one or more instructions |
| //===----------------------------------------------------------------------===// |
| |
| // Small immediates |
| def : Pat<(i32 immSExt16:$in), |
| (ADDiu ZERO, imm:$in)>; |
| def : Pat<(i32 immZExt16:$in), |
| (ORi ZERO, imm:$in)>; |
| def : Pat<(i32 immLow16Zero:$in), |
| (LUi (HI16 imm:$in))>; |
| |
| // Arbitrary immediates |
| def : Pat<(i32 imm:$imm), |
| (ORi (LUi (HI16 imm:$imm)), (LO16 imm:$imm))>; |
| |
| // Carry patterns |
| def : Pat<(subc CPURegs:$lhs, CPURegs:$rhs), |
| (SUBu CPURegs:$lhs, CPURegs:$rhs)>; |
| def : Pat<(addc CPURegs:$lhs, CPURegs:$rhs), |
| (ADDu CPURegs:$lhs, CPURegs:$rhs)>; |
| def : Pat<(addc CPURegs:$src, immSExt16:$imm), |
| (ADDiu CPURegs:$src, imm:$imm)>; |
| |
| // Call |
| def : Pat<(MipsJmpLink (i32 tglobaladdr:$dst)), |
| (JAL tglobaladdr:$dst)>; |
| def : Pat<(MipsJmpLink (i32 texternalsym:$dst)), |
| (JAL texternalsym:$dst)>; |
| //def : Pat<(MipsJmpLink CPURegs:$dst), |
| // (JALR CPURegs:$dst)>; |
| |
| // hi/lo relocs |
| def : Pat<(MipsHi tglobaladdr:$in), (LUi tglobaladdr:$in)>; |
| def : Pat<(MipsHi tblockaddress:$in), (LUi tblockaddress:$in)>; |
| def : Pat<(MipsHi tjumptable:$in), (LUi tjumptable:$in)>; |
| def : Pat<(MipsHi tconstpool:$in), (LUi tconstpool:$in)>; |
| def : Pat<(MipsHi tglobaltlsaddr:$in), (LUi tglobaltlsaddr:$in)>; |
| |
| def : Pat<(MipsLo tglobaladdr:$in), (ADDiu ZERO, tglobaladdr:$in)>; |
| def : Pat<(MipsLo tblockaddress:$in), (ADDiu ZERO, tblockaddress:$in)>; |
| def : Pat<(MipsLo tjumptable:$in), (ADDiu ZERO, tjumptable:$in)>; |
| def : Pat<(MipsLo tconstpool:$in), (ADDiu ZERO, tconstpool:$in)>; |
| def : Pat<(MipsLo tglobaltlsaddr:$in), (ADDiu ZERO, tglobaltlsaddr:$in)>; |
| |
| def : Pat<(add CPURegs:$hi, (MipsLo tglobaladdr:$lo)), |
| (ADDiu CPURegs:$hi, tglobaladdr:$lo)>; |
| def : Pat<(add CPURegs:$hi, (MipsLo tblockaddress:$lo)), |
| (ADDiu CPURegs:$hi, tblockaddress:$lo)>; |
| def : Pat<(add CPURegs:$hi, (MipsLo tjumptable:$lo)), |
| (ADDiu CPURegs:$hi, tjumptable:$lo)>; |
| def : Pat<(add CPURegs:$hi, (MipsLo tconstpool:$lo)), |
| (ADDiu CPURegs:$hi, tconstpool:$lo)>; |
| def : Pat<(add CPURegs:$hi, (MipsLo tglobaltlsaddr:$lo)), |
| (ADDiu CPURegs:$hi, tglobaltlsaddr:$lo)>; |
| |
| // gp_rel relocs |
| def : Pat<(add CPURegs:$gp, (MipsGPRel tglobaladdr:$in)), |
| (ADDiu CPURegs:$gp, tglobaladdr:$in)>; |
| def : Pat<(add CPURegs:$gp, (MipsGPRel tconstpool:$in)), |
| (ADDiu CPURegs:$gp, tconstpool:$in)>; |
| |
| // wrapper_pic |
| class WrapperPat<SDNode node, Instruction ADDiuOp, RegisterClass RC>: |
| Pat<(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 : Pat<(not CPURegs:$in), |
| (NOR CPURegs:$in, ZERO)>; |
| |
| // extended loads |
| let Predicates = [NotN64] in { |
| def : Pat<(i32 (extloadi1 addr:$src)), (LBu addr:$src)>; |
| def : Pat<(i32 (extloadi8 addr:$src)), (LBu addr:$src)>; |
| def : Pat<(i32 (extloadi16_a addr:$src)), (LHu addr:$src)>; |
| def : Pat<(i32 (extloadi16_u addr:$src)), (ULHu addr:$src)>; |
| } |
| let Predicates = [IsN64] in { |
| def : Pat<(i32 (extloadi1 addr:$src)), (LBu_P8 addr:$src)>; |
| def : Pat<(i32 (extloadi8 addr:$src)), (LBu_P8 addr:$src)>; |
| def : Pat<(i32 (extloadi16_a addr:$src)), (LHu_P8 addr:$src)>; |
| def : Pat<(i32 (extloadi16_u addr:$src)), (ULHu_P8 addr:$src)>; |
| } |
| |
| // peepholes |
| let Predicates = [NotN64] in { |
| def : Pat<(store_a (i32 0), addr:$dst), (SW ZERO, addr:$dst)>; |
| def : Pat<(store_u (i32 0), addr:$dst), (USW ZERO, addr:$dst)>; |
| } |
| let Predicates = [IsN64] in { |
| def : Pat<(store_a (i32 0), addr:$dst), (SW_P8 ZERO, addr:$dst)>; |
| def : Pat<(store_u (i32 0), addr:$dst), (USW_P8 ZERO, addr:$dst)>; |
| } |
| |
| // brcond patterns |
| multiclass BrcondPats<RegisterClass RC, Instruction BEQOp, Instruction BNEOp, |
| Instruction SLTOp, Instruction SLTuOp, Instruction SLTiOp, |
| Instruction SLTiuOp, Register ZEROReg> { |
| def : Pat<(brcond (i32 (setne RC:$lhs, 0)), bb:$dst), |
| (BNEOp RC:$lhs, ZEROReg, bb:$dst)>; |
| def : Pat<(brcond (i32 (seteq RC:$lhs, 0)), bb:$dst), |
| (BEQOp RC:$lhs, ZEROReg, bb:$dst)>; |
| |
| def : Pat<(brcond (i32 (setge RC:$lhs, RC:$rhs)), bb:$dst), |
| (BEQ (SLTOp RC:$lhs, RC:$rhs), ZERO, bb:$dst)>; |
| def : Pat<(brcond (i32 (setuge RC:$lhs, RC:$rhs)), bb:$dst), |
| (BEQ (SLTuOp RC:$lhs, RC:$rhs), ZERO, bb:$dst)>; |
| def : Pat<(brcond (i32 (setge RC:$lhs, immSExt16:$rhs)), bb:$dst), |
| (BEQ (SLTiOp RC:$lhs, immSExt16:$rhs), ZERO, bb:$dst)>; |
| def : Pat<(brcond (i32 (setuge RC:$lhs, immSExt16:$rhs)), bb:$dst), |
| (BEQ (SLTiuOp RC:$lhs, immSExt16:$rhs), ZERO, bb:$dst)>; |
| |
| def : Pat<(brcond (i32 (setle RC:$lhs, RC:$rhs)), bb:$dst), |
| (BEQ (SLTOp RC:$rhs, RC:$lhs), ZERO, bb:$dst)>; |
| def : Pat<(brcond (i32 (setule RC:$lhs, RC:$rhs)), bb:$dst), |
| (BEQ (SLTuOp RC:$rhs, RC:$lhs), ZERO, bb:$dst)>; |
| |
| def : Pat<(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 : Pat<(seteq RC:$lhs, RC:$rhs), |
| (SLTiuOp (XOROp RC:$lhs, RC:$rhs), 1)>; |
| def : Pat<(setne RC:$lhs, RC:$rhs), |
| (SLTuOp ZEROReg, (XOROp RC:$lhs, RC:$rhs))>; |
| } |
| |
| multiclass SetlePats<RegisterClass RC, Instruction SLTOp, Instruction SLTuOp> { |
| def : Pat<(setle RC:$lhs, RC:$rhs), |
| (XORi (SLTOp RC:$rhs, RC:$lhs), 1)>; |
| def : Pat<(setule RC:$lhs, RC:$rhs), |
| (XORi (SLTuOp RC:$rhs, RC:$lhs), 1)>; |
| } |
| |
| multiclass SetgtPats<RegisterClass RC, Instruction SLTOp, Instruction SLTuOp> { |
| def : Pat<(setgt RC:$lhs, RC:$rhs), |
| (SLTOp RC:$rhs, RC:$lhs)>; |
| def : Pat<(setugt RC:$lhs, RC:$rhs), |
| (SLTuOp RC:$rhs, RC:$lhs)>; |
| } |
| |
| multiclass SetgePats<RegisterClass RC, Instruction SLTOp, Instruction SLTuOp> { |
| def : Pat<(setge RC:$lhs, RC:$rhs), |
| (XORi (SLTOp RC:$lhs, RC:$rhs), 1)>; |
| def : Pat<(setuge RC:$lhs, RC:$rhs), |
| (XORi (SLTuOp RC:$lhs, RC:$rhs), 1)>; |
| } |
| |
| multiclass SetgeImmPats<RegisterClass RC, Instruction SLTiOp, |
| Instruction SLTiuOp> { |
| def : Pat<(setge RC:$lhs, immSExt16:$rhs), |
| (XORi (SLTiOp RC:$lhs, immSExt16:$rhs), 1)>; |
| def : Pat<(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>; |
| |
| // select MipsDynAlloc |
| def : Pat<(MipsDynAlloc addr:$f), (DynAlloc addr:$f)>; |
| |
| // bswap pattern |
| def : Pat<(bswap CPURegs:$rt), (ROTR (WSBH CPURegs:$rt), 16)>; |
| |
| //===----------------------------------------------------------------------===// |
| // Floating Point Support |
| //===----------------------------------------------------------------------===// |
| |
| include "MipsInstrFPU.td" |
| include "Mips64InstrInfo.td" |
| include "MipsCondMov.td" |
| |