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b2d1275188
llvm/lib/Target/Mips/MipsInstrInfo.td
Reed Kotler b2d1275188 Add the 16 bit version of addiu. To the assembler, the 16 and 32 bit are the 
same so we put in the comment field an indicator when we think we are
emitting the 16 bit version. For the direct object emitter, the difference is 
important as well as for other passes which need an accurate count of 
program size. There will be other similar putbacks to this for various
instructions.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174747 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-08 21:42:56 +00:00

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//===- 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);
}]>;
// 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);}]>;
// 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]>;
//===----------------------------------------------------------------------===//
// 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), 0>,
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"
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