LLVM 17.0.0git
Public Member Functions | Static Public Member Functions | Protected Member Functions | List of all members
llvm::ARMBaseInstrInfo Class Referenceabstract

#include "Target/ARM/ARMBaseInstrInfo.h"

Inheritance diagram for llvm::ARMBaseInstrInfo:
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Public Member Functions

bool hasNOP () const
 
virtual unsigned getUnindexedOpcode (unsigned Opc) const =0
 
MachineInstr * convertToThreeAddress (MachineInstr &MI, LiveVariables *LV, LiveIntervals *LIS) const override
 
virtual const ARMBaseRegisterInfo & getRegisterInfo () const =0
 
const ARMSubtarget & getSubtarget () const
 
ScheduleHazardRecognizer * CreateTargetHazardRecognizer (const TargetSubtargetInfo *STI, const ScheduleDAG *DAG) const override
 
ScheduleHazardRecognizer * CreateTargetMIHazardRecognizer (const InstrItineraryData *II, const ScheduleDAGMI *DAG) const override
 
ScheduleHazardRecognizer * CreateTargetPostRAHazardRecognizer (const InstrItineraryData *II, const ScheduleDAG *DAG) const override
 
bool analyzeBranch (MachineBasicBlock &MBB, MachineBasicBlock *&TBB, MachineBasicBlock *&FBB, SmallVectorImpl< MachineOperand > &Cond, bool AllowModify=false) const override
 
unsigned removeBranch (MachineBasicBlock &MBB, int *BytesRemoved=nullptr) const override
 
unsigned insertBranch (MachineBasicBlock &MBB, MachineBasicBlock *TBB, MachineBasicBlock *FBB, ArrayRef< MachineOperand > Cond, const DebugLoc &DL, int *BytesAdded=nullptr) const override
 
bool reverseBranchCondition (SmallVectorImpl< MachineOperand > &Cond) const override
 
bool isPredicated (const MachineInstr &MI) const override
 
std::string createMIROperandComment (const MachineInstr &MI, const MachineOperand &Op, unsigned OpIdx, const TargetRegisterInfo *TRI) const override
 
ARMCC::CondCodes getPredicate (const MachineInstr &MI) const
 
bool PredicateInstruction (MachineInstr &MI, ArrayRef< MachineOperand > Pred) const override
 
bool SubsumesPredicate (ArrayRef< MachineOperand > Pred1, ArrayRef< MachineOperand > Pred2) const override
 
bool ClobbersPredicate (MachineInstr &MI, std::vector< MachineOperand > &Pred, bool SkipDead) const override
 
bool isPredicable (const MachineInstr &MI) const override
 isPredicable - Return true if the specified instruction can be predicated.
 
unsigned getInstSizeInBytes (const MachineInstr &MI) const override
 GetInstSize - Returns the size of the specified MachineInstr.
 
unsigned isLoadFromStackSlot (const MachineInstr &MI, int &FrameIndex) const override
 
unsigned isStoreToStackSlot (const MachineInstr &MI, int &FrameIndex) const override
 
unsigned isLoadFromStackSlotPostFE (const MachineInstr &MI, int &FrameIndex) const override
 
unsigned isStoreToStackSlotPostFE (const MachineInstr &MI, int &FrameIndex) const override
 
void copyToCPSR (MachineBasicBlock &MBB, MachineBasicBlock::iterator I, unsigned SrcReg, bool KillSrc, const ARMSubtarget &Subtarget) const
 
void copyFromCPSR (MachineBasicBlock &MBB, MachineBasicBlock::iterator I, unsigned DestReg, bool KillSrc, const ARMSubtarget &Subtarget) const
 
void copyPhysReg (MachineBasicBlock &MBB, MachineBasicBlock::iterator I, const DebugLoc &DL, MCRegister DestReg, MCRegister SrcReg, bool KillSrc) const override
 
void storeRegToStackSlot (MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI, Register SrcReg, bool isKill, int FrameIndex, const TargetRegisterClass *RC, const TargetRegisterInfo *TRI, Register VReg) const override
 
void loadRegFromStackSlot (MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI, Register DestReg, int FrameIndex, const TargetRegisterClass *RC, const TargetRegisterInfo *TRI, Register VReg) const override
 
bool expandPostRAPseudo (MachineInstr &MI) const override
 
bool shouldSink (const MachineInstr &MI) const override
 
void reMaterialize (MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, Register DestReg, unsigned SubIdx, const MachineInstr &Orig, const TargetRegisterInfo &TRI) const override
 
MachineInstr & duplicate (MachineBasicBlock &MBB, MachineBasicBlock::iterator InsertBefore, const MachineInstr &Orig) const override
 
const MachineInstrBuilder & AddDReg (MachineInstrBuilder &MIB, unsigned Reg, unsigned SubIdx, unsigned State, const TargetRegisterInfo *TRI) const
 
bool produceSameValue (const MachineInstr &MI0, const MachineInstr &MI1, const MachineRegisterInfo *MRI) const override
 
bool areLoadsFromSameBasePtr (SDNode *Load1, SDNode *Load2, int64_t &Offset1, int64_t &Offset2) const override
 areLoadsFromSameBasePtr - This is used by the pre-regalloc scheduler to determine if two loads are loading from the same base address.
 
bool shouldScheduleLoadsNear (SDNode *Load1, SDNode *Load2, int64_t Offset1, int64_t Offset2, unsigned NumLoads) const override
 shouldScheduleLoadsNear - This is a used by the pre-regalloc scheduler to determine (in conjunction with areLoadsFromSameBasePtr) if two loads should be scheduled togther.
 
bool isSchedulingBoundary (const MachineInstr &MI, const MachineBasicBlock *MBB, const MachineFunction &MF) const override
 
bool isProfitableToIfCvt (MachineBasicBlock &MBB, unsigned NumCycles, unsigned ExtraPredCycles, BranchProbability Probability) const override
 
bool isProfitableToIfCvt (MachineBasicBlock &TMBB, unsigned NumT, unsigned ExtraT, MachineBasicBlock &FMBB, unsigned NumF, unsigned ExtraF, BranchProbability Probability) const override
 
bool isProfitableToDupForIfCvt (MachineBasicBlock &MBB, unsigned NumCycles, BranchProbability Probability) const override
 
unsigned extraSizeToPredicateInstructions (const MachineFunction &MF, unsigned NumInsts) const override
 
unsigned predictBranchSizeForIfCvt (MachineInstr &MI) const override
 
bool isProfitableToUnpredicate (MachineBasicBlock &TMBB, MachineBasicBlock &FMBB) const override
 
bool analyzeCompare (const MachineInstr &MI, Register &SrcReg, Register &SrcReg2, int64_t &CmpMask, int64_t &CmpValue) const override
 analyzeCompare - For a comparison instruction, return the source registers in SrcReg and SrcReg2 if having two register operands, and the value it compares against in CmpValue.
 
bool optimizeCompareInstr (MachineInstr &CmpInstr, Register SrcReg, Register SrcReg2, int64_t CmpMask, int64_t CmpValue, const MachineRegisterInfo *MRI) const override
 optimizeCompareInstr - Convert the instruction to set the zero flag so that we can remove a "comparison with zero"; Remove a redundant CMP instruction if the flags can be updated in the same way by an earlier instruction such as SUB.
 
bool analyzeSelect (const MachineInstr &MI, SmallVectorImpl< MachineOperand > &Cond, unsigned &TrueOp, unsigned &FalseOp, bool &Optimizable) const override
 
MachineInstr * optimizeSelect (MachineInstr &MI, SmallPtrSetImpl< MachineInstr * > &SeenMIs, bool) const override
 
bool FoldImmediate (MachineInstr &UseMI, MachineInstr &DefMI, Register Reg, MachineRegisterInfo *MRI) const override
 FoldImmediate - 'Reg' is known to be defined by a move immediate instruction, try to fold the immediate into the use instruction.
 
unsigned getNumMicroOps (const InstrItineraryData *ItinData, const MachineInstr &MI) const override
 
int getOperandLatency (const InstrItineraryData *ItinData, const MachineInstr &DefMI, unsigned DefIdx, const MachineInstr &UseMI, unsigned UseIdx) const override
 
int getOperandLatency (const InstrItineraryData *ItinData, SDNode *DefNode, unsigned DefIdx, SDNode *UseNode, unsigned UseIdx) const override
 
std::pair< uint16_t, uint16_t > getExecutionDomain (const MachineInstr &MI) const override
 VFP/NEON execution domains.
 
void setExecutionDomain (MachineInstr &MI, unsigned Domain) const override
 
unsigned getPartialRegUpdateClearance (const MachineInstr &, unsigned, const TargetRegisterInfo *) const override
 
void breakPartialRegDependency (MachineInstr &, unsigned, const TargetRegisterInfo *TRI) const override
 
unsigned getNumLDMAddresses (const MachineInstr &MI) const
 Get the number of addresses by LDM or VLDM or zero for unknown.
 
std::pair< unsigned, unsigned > decomposeMachineOperandsTargetFlags (unsigned TF) const override
 
ArrayRef< std::pair< unsigned, const char * > > getSerializableDirectMachineOperandTargetFlags () const override
 
ArrayRef< std::pair< unsigned, const char * > > getSerializableBitmaskMachineOperandTargetFlags () const override
 
bool isFunctionSafeToOutlineFrom (MachineFunction &MF, bool OutlineFromLinkOnceODRs) const override
 ARM supports the MachineOutliner.
 
outliner::OutlinedFunction getOutliningCandidateInfo (std::vector< outliner::Candidate > &RepeatedSequenceLocs) const override
 
void mergeOutliningCandidateAttributes (Function &F, std::vector< outliner::Candidate > &Candidates) const override
 
outliner::InstrType getOutliningType (MachineBasicBlock::iterator &MIT, unsigned Flags) const override
 
bool isMBBSafeToOutlineFrom (MachineBasicBlock &MBB, unsigned &Flags) const override
 
void buildOutlinedFrame (MachineBasicBlock &MBB, MachineFunction &MF, const outliner::OutlinedFunction &OF) const override
 
MachineBasicBlock::iterator insertOutlinedCall (Module &M, MachineBasicBlock &MBB, MachineBasicBlock::iterator &It, MachineFunction &MF, outliner::Candidate &C) const override
 
bool shouldOutlineFromFunctionByDefault (MachineFunction &MF) const override
 Enable outlining by default at -Oz.
 
bool isUnspillableTerminatorImpl (const MachineInstr *MI) const override
 
std::unique_ptr< TargetInstrInfo::PipelinerLoopInfo > analyzeLoopForPipelining (MachineBasicBlock *LoopBB) const override
 Analyze loop L, which must be a single-basic-block loop, and if the conditions can be understood enough produce a PipelinerLoopInfo object.
 
bool isFpMLxInstruction (unsigned Opcode) const
 isFpMLxInstruction - Return true if the specified opcode is a fp MLA / MLS instruction.
 
bool isFpMLxInstruction (unsigned Opcode, unsigned &MulOpc, unsigned &AddSubOpc, bool &NegAcc, bool &HasLane) const
 isFpMLxInstruction - This version also returns the multiply opcode and the addition / subtraction opcode to expand to.
 
bool canCauseFpMLxStall (unsigned Opcode) const
 canCauseFpMLxStall - Return true if an instruction of the specified opcode will cause stalls when scheduled after (within 4-cycle window) a fp MLA / MLS instruction.
 
bool isSwiftFastImmShift (const MachineInstr *MI) const
 Returns true if the instruction has a shift by immediate that can be executed in one cycle less.
 
unsigned getFramePred (const MachineInstr &MI) const
 Returns predicate register associated with the given frame instruction.
 
std::optional< RegImmPair > isAddImmediate (const MachineInstr &MI, Register Reg) const override
 

Static Public Member Functions

static bool isCPSRDefined (const MachineInstr &MI)
 

Protected Member Functions

 ARMBaseInstrInfo (const ARMSubtarget &STI)
 
void expandLoadStackGuardBase (MachineBasicBlock::iterator MI, unsigned LoadImmOpc, unsigned LoadOpc) const
 
bool getRegSequenceLikeInputs (const MachineInstr &MI, unsigned DefIdx, SmallVectorImpl< RegSubRegPairAndIdx > &InputRegs) const override
 Build the equivalent inputs of a REG_SEQUENCE for the given MI and DefIdx.
 
bool getExtractSubregLikeInputs (const MachineInstr &MI, unsigned DefIdx, RegSubRegPairAndIdx &InputReg) const override
 Build the equivalent inputs of a EXTRACT_SUBREG for the given MI and DefIdx.
 
bool getInsertSubregLikeInputs (const MachineInstr &MI, unsigned DefIdx, RegSubRegPair &BaseReg, RegSubRegPairAndIdx &InsertedReg) const override
 Build the equivalent inputs of a INSERT_SUBREG for the given MI and DefIdx.
 
MachineInstr * commuteInstructionImpl (MachineInstr &MI, bool NewMI, unsigned OpIdx1, unsigned OpIdx2) const override
 Commutes the operands in the given instruction.
 
std::optional< DestSourcePair > isCopyInstrImpl (const MachineInstr &MI) const override
 If the specific machine instruction is an instruction that moves/copies value from one register to another register return destination and source registers as machine operands.
 
std::optional< ParamLoadedValue > describeLoadedValue (const MachineInstr &MI, Register Reg) const override
 Specialization of TargetInstrInfo::describeLoadedValue, used to enhance debug entry value descriptions for ARM targets.
 

Detailed Description

Definition at line 37 of file ARMBaseInstrInfo.h.

Constructor & Destructor Documentation

◆ ARMBaseInstrInfo()

ARMBaseInstrInfo::ARMBaseInstrInfo ( const ARMSubtarget &  STI)
explicitprotected

Definition at line 115 of file ARMBaseInstrInfo.cpp.

References ARM_MLxTable, llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::insert(), llvm::SmallSet< T, N, C >::insert(), llvm_unreachable, and ARM_MLxEntry::MLxOpc.

Member Function Documentation

◆ AddDReg()

const MachineInstrBuilder & ARMBaseInstrInfo::AddDReg ( MachineInstrBuilder &  MIB,
unsigned  Reg,
unsigned  SubIdx,
unsigned  State,
const TargetRegisterInfo *  TRI 
) const

Definition at line 1104 of file ARMBaseInstrInfo.cpp.

References llvm::MachineInstrBuilder::addReg(), llvm::Register::isPhysicalRegister(), and TRI.

Referenced by loadRegFromStackSlot(), llvm::Thumb2InstrInfo::loadRegFromStackSlot(), storeRegToStackSlot(), and llvm::Thumb2InstrInfo::storeRegToStackSlot().

◆ analyzeBranch()

bool ARMBaseInstrInfo::analyzeBranch ( MachineBasicBlock &  MBB,
MachineBasicBlock *&  TBB,
MachineBasicBlock *&  FBB,
SmallVectorImpl< MachineOperand > &  Cond,
bool  AllowModify = false 
) const
override

Definition at line 355 of file ARMBaseInstrInfo.cpp.

References assert(), llvm::MachineBasicBlock::back(), Cond, llvm::MachineOperand::CreateImm(), llvm::ARMSubtarget::enableMachinePipeliner(), llvm::MachineInstr::eraseFromParent(), llvm::MachineInstr::getOpcode(), llvm::MachineBasicBlock::getParent(), llvm::MachineFunction::getSubtarget(), I, llvm::MachineBasicBlock::instr_begin(), llvm::MachineBasicBlock::instr_end(), llvm::isCondBranchOpcode(), llvm::isIndirectBranchOpcode(), llvm::isJumpTableBranchOpcode(), llvm::MachineBasicBlock::isLayoutSuccessor(), isPredicated(), llvm::isSpeculationBarrierEndBBOpcode(), llvm::isUncondBranchOpcode(), MBB, removeBranch(), and TBB.

◆ analyzeCompare()

bool ARMBaseInstrInfo::analyzeCompare ( const MachineInstr &  MI,
Register &  SrcReg,
Register &  SrcReg2,
int64_t &  CmpMask,
int64_t &  CmpValue 
) const
override

analyzeCompare - For a comparison instruction, return the source registers in SrcReg and SrcReg2 if having two register operands, and the value it compares against in CmpValue.

Return true if the comparison instruction can be analyzed.

Definition at line 2801 of file ARMBaseInstrInfo.cpp.

References MI.

Referenced by shouldSink().

◆ analyzeLoopForPipelining()

std::unique_ptr< TargetInstrInfo::PipelinerLoopInfo > ARMBaseInstrInfo::analyzeLoopForPipelining ( MachineBasicBlock *  LoopBB) const
override

Analyze loop L, which must be a single-basic-block loop, and if the conditions can be understood enough produce a PipelinerLoopInfo object.

Definition at line 6999 of file ARMBaseInstrInfo.cpp.

References llvm::MachineBasicBlock::end(), llvm::MachineBasicBlock::getFirstTerminator(), llvm::MachineInstr::getOpcode(), llvm::MachineBasicBlock::getParent(), llvm::MachineFunction::getRegInfo(), I, llvm::MachineBasicBlock::instrs(), isCPSRDefined(), llvm::isVCTP(), MRI, and llvm::MachineBasicBlock::pred_begin().

◆ analyzeSelect()

bool ARMBaseInstrInfo::analyzeSelect ( const MachineInstr &  MI,
SmallVectorImpl< MachineOperand > &  Cond,
unsigned &  TrueOp,
unsigned &  FalseOp,
bool &  Optimizable 
) const
override

Definition at line 2332 of file ARMBaseInstrInfo.cpp.

References assert(), Cond, and MI.

◆ areLoadsFromSameBasePtr()

bool ARMBaseInstrInfo::areLoadsFromSameBasePtr ( SDNode *  Load1,
SDNode *  Load2,
int64_t &  Offset1,
int64_t &  Offset2 
) const
override

areLoadsFromSameBasePtr - This is used by the pre-regalloc scheduler to determine if two loads are loading from the same base address.

It should only return true if the base pointers are the same and the only differences between the two addresses is the offset. It also returns the offsets by reference.

It should only return true if the base pointers are the same and the only differences between the two addresses is the offset. It also returns the offsets by reference.

FIXME: remove this in favor of the MachineInstr interface once pre-RA-sched is permanently disabled.

Definition at line 1947 of file ARMBaseInstrInfo.cpp.

References llvm::SDNode::getMachineOpcode(), llvm::SDNode::getOperand(), llvm::SDNode::isMachineOpcode(), and llvm::ARMSubtarget::isThumb1Only().

◆ breakPartialRegDependency()

void ARMBaseInstrInfo::breakPartialRegDependency ( MachineInstr &  MI,
unsigned  OpNum,
const TargetRegisterInfo *  TRI 
) const
override

Definition at line 5402 of file ARMBaseInstrInfo.cpp.

References llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addImm(), llvm::ARMCC::AL, assert(), llvm::BuildMI(), contains(), llvm::get(), llvm::MachineOperand::getReg(), MI, llvm::predOps(), and TRI.

◆ buildOutlinedFrame()

void ARMBaseInstrInfo::buildOutlinedFrame ( MachineBasicBlock &  MBB,
MachineFunction &  MF,
const outliner::OutlinedFunction &  OF 
) const
override

Definition at line 6606 of file ARMBaseInstrInfo.cpp.

References llvm::MachineInstrBuilder::add(), llvm::MachineBasicBlock::addLiveIn(), llvm::ARMCC::AL, llvm::any_of(), assert(), llvm::MachineBasicBlock::begin(), llvm::BuildMI(), llvm::outliner::OutlinedFunction::Candidates, llvm::MachineBasicBlock::end(), llvm::outliner::OutlinedFunction::FrameConstructionID, llvm::get(), llvm::ARMSubtarget::getReturnOpcode(), llvm::MachineBasicBlock::instr_end(), llvm::MachineBasicBlock::instrs(), llvm::MachineBasicBlock::isLiveIn(), llvm::ARMSubtarget::isTargetMachO(), isThumb(), MachineOutlinerDefault, MachineOutlinerTailCall, MachineOutlinerThunk, MBB, MI, and llvm::predOps().

◆ canCauseFpMLxStall()

bool llvm::ARMBaseInstrInfo::canCauseFpMLxStall ( unsigned  Opcode) const
inline

canCauseFpMLxStall - Return true if an instruction of the specified opcode will cause stalls when scheduled after (within 4-cycle window) a fp MLA / MLS instruction.

Definition at line 514 of file ARMBaseInstrInfo.h.

References llvm::SmallSet< T, N, C >::count().

◆ ClobbersPredicate()

bool ARMBaseInstrInfo::ClobbersPredicate ( MachineInstr &  MI,
std::vector< MachineOperand > &  Pred,
bool  SkipDead 
) const
override

Definition at line 661 of file ARMBaseInstrInfo.cpp.

References MI, llvm::ARMII::ThumbArithFlagSetting, and llvm::MCInstrDesc::TSFlags.

◆ commuteInstructionImpl()

MachineInstr * ARMBaseInstrInfo::commuteInstructionImpl ( MachineInstr &  MI,
bool  NewMI,
unsigned  OpIdx1,
unsigned  OpIdx2 
) const
overrideprotected

Commutes the operands in the given instruction.

The commutable operands are specified by their indices OpIdx1 and OpIdx2.

Do not call this method for a non-commutable instruction or for non-commutable pair of operand indices OpIdx1 and OpIdx2. Even though the instruction is commutable, the method may still fail to commute the operands, null pointer is returned in such cases.

Definition at line 2269 of file ARMBaseInstrInfo.cpp.

References llvm::ARMCC::AL, CC, llvm::TargetInstrInfo::commuteInstructionImpl(), llvm::MachineInstr::findFirstPredOperandIdx(), llvm::getInstrPredicate(), llvm::MachineInstr::getOperand(), llvm::ARMCC::getOppositeCondition(), MI, and llvm::MachineOperand::setImm().

Referenced by llvm::Thumb2InstrInfo::commuteInstructionImpl().

◆ convertToThreeAddress()

MachineInstr * ARMBaseInstrInfo::convertToThreeAddress ( MachineInstr &  MI,
LiveVariables *  LV,
LiveIntervals *  LIS 
) const
override

Definition at line 179 of file ARMBaseInstrInfo.cpp.

References llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), llvm::ARMII::AddrMode2, llvm::ARMII::AddrMode3, llvm::ARMII::AddrModeMask, llvm::LiveVariables::addVirtualRegisterDead(), llvm::LiveVariables::addVirtualRegisterKilled(), llvm::sampleprof::Base, llvm::BuildMI(), llvm::condCodeOp(), EnableARM3Addr, llvm::get(), llvm::ARM_AM::getAM2Offset(), llvm::ARM_AM::getAM2Op(), llvm::ARM_AM::getAM2ShiftOpc(), llvm::ARM_AM::getAM3Offset(), llvm::ARM_AM::getAM3Op(), llvm::MCInstrDesc::getNumOperands(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), llvm::ARM_AM::getSOImmVal(), llvm::ARM_AM::getSORegOpc(), getUnindexedOpcode(), llvm::LiveVariables::getVarInfo(), llvm::ARMII::IndexModeMask, llvm::ARMII::IndexModePost, llvm::ARMII::IndexModePre, llvm::ARMII::IndexModeShift, llvm::MachineBasicBlock::insert(), llvm::MachineOperand::isDead(), isLoad(), llvm_unreachable, MBB, MI, llvm::Offset, llvm::predOps(), llvm::MachineInstr::readsRegister(), llvm::MachineOperand::setIsDead(), llvm::ARM_AM::sub, TSFlags, and VI.

◆ copyFromCPSR()

void ARMBaseInstrInfo::copyFromCPSR ( MachineBasicBlock &  MBB,
MachineBasicBlock::iterator  I,
unsigned  DestReg,
bool  KillSrc,
const ARMSubtarget &  Subtarget 
) const

Definition at line 827 of file ARMBaseInstrInfo.cpp.

References llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), llvm::ARMCC::AL, llvm::BuildMI(), llvm::get(), llvm::getKillRegState(), I, llvm::RegState::Implicit, llvm::ARMSubtarget::isMClass(), MBB, and llvm::predOps().

Referenced by copyPhysReg().

◆ copyPhysReg()

void ARMBaseInstrInfo::copyPhysReg ( MachineBasicBlock &  MBB,
MachineBasicBlock::iterator  I,
const DebugLoc &  DL,
MCRegister  DestReg,
MCRegister  SrcReg,
bool  KillSrc 
) const
override

Definition at line 891 of file ARMBaseInstrInfo.cpp.

References llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addReg(), llvm::MachineInstr::addRegisterDefined(), llvm::MachineInstr::addRegisterKilled(), llvm::addUnpredicatedMveVpredROp(), llvm::ARMCC::AL, assert(), llvm::BuildMI(), llvm::condCodeOp(), contains(), copyFromCPSR(), copyToCPSR(), llvm::SmallSet< T, N, C >::count(), DL, llvm::get(), llvm::getKillRegState(), getRegisterInfo(), I, llvm::SmallSet< T, N, C >::insert(), llvm::ARMSubtarget::isThumb2(), MBB, llvm::predOps(), and TRI.

Referenced by llvm::Thumb2InstrInfo::copyPhysReg(), and insertOutlinedCall().

◆ copyToCPSR()

void ARMBaseInstrInfo::copyToCPSR ( MachineBasicBlock &  MBB,
MachineBasicBlock::iterator  I,
unsigned  SrcReg,
bool  KillSrc,
const ARMSubtarget &  Subtarget 
) const

Definition at line 847 of file ARMBaseInstrInfo.cpp.

References llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), llvm::ARMCC::AL, llvm::BuildMI(), llvm::RegState::Define, llvm::get(), llvm::getKillRegState(), I, llvm::RegState::Implicit, llvm::ARMSubtarget::isMClass(), MBB, and llvm::predOps().

Referenced by copyPhysReg().

◆ createMIROperandComment()

std::string ARMBaseInstrInfo::createMIROperandComment ( const MachineInstr &  MI,
const MachineOperand &  Op,
unsigned  OpIdx,
const TargetRegisterInfo *  TRI 
) const
override

Definition at line 576 of file ARMBaseInstrInfo.cpp.

References llvm::ARMCondCodeToString(), CC, llvm::TargetInstrInfo::createMIROperandComment(), MI, and TRI.

◆ CreateTargetHazardRecognizer()

ScheduleHazardRecognizer * ARMBaseInstrInfo::CreateTargetHazardRecognizer ( const TargetSubtargetInfo *  STI,
const ScheduleDAG *  DAG 
) const
override

Definition at line 129 of file ARMBaseInstrInfo.cpp.

References llvm::TargetInstrInfo::CreateTargetHazardRecognizer().

◆ CreateTargetMIHazardRecognizer()

ScheduleHazardRecognizer * ARMBaseInstrInfo::CreateTargetMIHazardRecognizer ( const InstrItineraryData *  II,
const ScheduleDAGMI *  DAG 
) const
override

Definition at line 142 of file ARMBaseInstrInfo.cpp.

References llvm::MultiHazardRecognizer::AddHazardRecognizer(), llvm::TargetInstrInfo::CreateTargetMIHazardRecognizer(), llvm::ScheduleDAGMI::hasVRegLiveness(), and llvm::ARMSubtarget::isCortexM7().

◆ CreateTargetPostRAHazardRecognizer()

ScheduleHazardRecognizer * ARMBaseInstrInfo::CreateTargetPostRAHazardRecognizer ( const InstrItineraryData *  II,
const ScheduleDAG *  DAG 
) const
override

Definition at line 164 of file ARMBaseInstrInfo.cpp.

References llvm::MultiHazardRecognizer::AddHazardRecognizer(), llvm::TargetInstrInfo::CreateTargetPostRAHazardRecognizer(), llvm::ARMSubtarget::hasVFP2Base(), and llvm::ARMSubtarget::isThumb2().

◆ decomposeMachineOperandsTargetFlags()

std::pair< unsigned, unsigned > ARMBaseInstrInfo::decomposeMachineOperandsTargetFlags ( unsigned  TF) const
override

Definition at line 5531 of file ARMBaseInstrInfo.cpp.

References llvm::ARMII::MO_OPTION_MASK.

◆ describeLoadedValue()

std::optional< ParamLoadedValue > ARMBaseInstrInfo::describeLoadedValue ( const MachineInstr &  MI,
Register  Reg 
) const
overrideprotected

Specialization of TargetInstrInfo::describeLoadedValue, used to enhance debug entry value descriptions for ARM targets.

Definition at line 1074 of file ARMBaseInstrInfo.cpp.

References llvm::TargetInstrInfo::describeLoadedValue(), isCopyInstrImpl(), and MI.

◆ duplicate()

MachineInstr & ARMBaseInstrInfo::duplicate ( MachineBasicBlock &  MBB,
MachineBasicBlock::iterator  InsertBefore,
const MachineInstr &  Orig 
) const
override

Definition at line 1836 of file ARMBaseInstrInfo.cpp.

References llvm::TargetInstrInfo::duplicate(), duplicateCPV(), llvm::ilist_node_impl< OptionsT >::getIterator(), llvm::MachineBasicBlock::getParent(), I, and MBB.

◆ expandLoadStackGuardBase()

void ARMBaseInstrInfo::expandLoadStackGuardBase ( MachineBasicBlock::iterator  MI,
unsigned  LoadImmOpc,
unsigned  LoadOpc 
) const
protected

Definition at line 4929 of file ARMBaseInstrInfo.cpp.

References llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addGlobalAddress(), llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addMemOperand(), llvm::MachineInstrBuilder::addReg(), llvm::ARMCC::AL, assert(), llvm::BuildMI(), llvm::MachineInstrBuilder::cloneMemRefs(), DL, llvm::get(), llvm::MachineFunction::getFunction(), llvm::MachinePointerInfo::getGOT(), llvm::MachineFunction::getMachineMemOperand(), llvm::GlobalValue::getParent(), llvm::MachineBasicBlock::getParent(), llvm::GlobalValue::hasDLLImportStorageClass(), llvm::ARMSubtarget::isGVIndirectSymbol(), llvm::ARMSubtarget::isGVInGOT(), llvm::ARMSubtarget::isROPI(), llvm::ARMSubtarget::isRWPI(), llvm::ARMSubtarget::isTargetCOFF(), llvm::ARMSubtarget::isTargetMachO(), llvm::RegState::Kill, MBB, MI, llvm::ARMII::MO_COFFSTUB, llvm::ARMII::MO_DLLIMPORT, llvm::ARMII::MO_GOT, llvm::ARMII::MO_NO_FLAG, llvm::ARMII::MO_NONLAZY, llvm::MachineMemOperand::MODereferenceable, llvm::MachineMemOperand::MOInvariant, llvm::MachineMemOperand::MOLoad, llvm::Offset, and llvm::predOps().

◆ expandPostRAPseudo()

bool ARMBaseInstrInfo::expandPostRAPseudo ( MachineInstr &  MI) const
override

Definition at line 1685 of file ARMBaseInstrInfo.cpp.

References llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addReg(), llvm::ARMCC::AL, contains(), llvm::dbgs(), llvm::get(), getRegisterInfo(), llvm::RegState::Implicit, LLVM_DEBUG, MI, llvm::predOps(), and TRI.

◆ extraSizeToPredicateInstructions()

unsigned ARMBaseInstrInfo::extraSizeToPredicateInstructions ( const MachineFunction &  MF,
unsigned  NumInsts 
) const
override

Definition at line 2199 of file ARMBaseInstrInfo.cpp.

References llvm::divideCeil(), llvm::ARMSubtarget::isThumb2(), and llvm::ARMSubtarget::restrictIT().

◆ FoldImmediate()

bool ARMBaseInstrInfo::FoldImmediate ( MachineInstr &  UseMI,
MachineInstr &  DefMI,
Register  Reg,
MachineRegisterInfo *  MRI 
) const
override

FoldImmediate - 'Reg' is known to be defined by a move immediate instruction, try to fold the immediate into the use instruction.

Definition at line 3325 of file ARMBaseInstrInfo.cpp.

References llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), llvm::ARMCC::AL, llvm::BuildMI(), llvm::condCodeOp(), DefMI, llvm::get(), llvm::getKillRegState(), llvm::MCInstrDesc::getNumOperands(), llvm::MachineOperand::getReg(), llvm::MachineInstrBuilder::getReg(), llvm::ARM_AM::getSOImmTwoPartFirst(), llvm::ARM_AM::getSOImmTwoPartSecond(), llvm::ARM_AM::getT2SOImmTwoPartFirst(), llvm::ARM_AM::getT2SOImmTwoPartSecond(), llvm::MCInstrDesc::hasOptionalDef(), llvm::MachineOperand::isDead(), llvm::ARM_AM::isSOImmTwoPartVal(), llvm::ARM_AM::isT2SOImmTwoPartVal(), MRI, llvm::predOps(), and UseMI.

◆ getExecutionDomain()

std::pair< uint16_t, uint16_t > ARMBaseInstrInfo::getExecutionDomain ( const MachineInstr &  MI) const
override

VFP/NEON execution domains.

Definition at line 5043 of file ARMBaseInstrInfo.cpp.

References llvm::ARMII::DomainMask, llvm::ARMII::DomainNEON, llvm::ARMII::DomainNEONA8, llvm::ARMII::DomainVFP, ExeGeneric, ExeNEON, ExeVFP, llvm::ARMSubtarget::isCortexA8(), isPredicated(), and MI.

◆ getExtractSubregLikeInputs()

bool ARMBaseInstrInfo::getExtractSubregLikeInputs ( const MachineInstr &  MI,
unsigned  DefIdx,
RegSubRegPairAndIdx &  InputReg 
) const
overrideprotected

Build the equivalent inputs of a EXTRACT_SUBREG for the given MI and DefIdx.

[out] InputReg of the equivalent EXTRACT_SUBREG. E.g., EXTRACT_SUBREG %1:sub1, sub0, sub1 would produce:

  • %1:sub1, sub0
Returns
true if it is possible to build such an input sequence with the pair MI, DefIdx. False otherwise.
Precondition
MI.isExtractSubregLike().

Definition at line 5480 of file ARMBaseInstrInfo.cpp.

References assert(), llvm::MachineOperand::getReg(), llvm::MachineOperand::getSubReg(), llvm::MachineOperand::isUndef(), llvm_unreachable, MI, llvm::TargetInstrInfo::RegSubRegPair::Reg, llvm::TargetInstrInfo::RegSubRegPairAndIdx::SubIdx, and llvm::TargetInstrInfo::RegSubRegPair::SubReg.

◆ getFramePred()

unsigned llvm::ARMBaseInstrInfo::getFramePred ( const MachineInstr &  MI) const
inline

Returns predicate register associated with the given frame instruction.

Definition at line 523 of file ARMBaseInstrInfo.h.

References assert(), and MI.

◆ getInsertSubregLikeInputs()

bool ARMBaseInstrInfo::getInsertSubregLikeInputs ( const MachineInstr &  MI,
unsigned  DefIdx,
RegSubRegPair &  BaseReg,
RegSubRegPairAndIdx &  InsertedReg 
) const
overrideprotected

Build the equivalent inputs of a INSERT_SUBREG for the given MI and DefIdx.

[out] BaseReg and [out] InsertedReg contain the equivalent inputs of INSERT_SUBREG. E.g., INSERT_SUBREG %0:sub0, %1:sub1, sub3 would produce:

  • BaseReg: %0:sub0
  • InsertedReg: %1:sub1, sub3
Returns
true if it is possible to build such an input sequence with the pair MI, DefIdx. False otherwise.
Precondition
MI.isInsertSubregLike().

Definition at line 5503 of file ARMBaseInstrInfo.cpp.

References assert(), llvm::MachineOperand::getImm(), llvm::MachineOperand::getReg(), llvm::MachineOperand::getSubReg(), llvm::MachineOperand::isUndef(), llvm_unreachable, MI, llvm::TargetInstrInfo::RegSubRegPair::Reg, llvm::TargetInstrInfo::RegSubRegPairAndIdx::SubIdx, and llvm::TargetInstrInfo::RegSubRegPair::SubReg.

◆ getInstSizeInBytes()

unsigned ARMBaseInstrInfo::getInstSizeInBytes ( const MachineInstr &  MI) const
override

GetInstSize - Returns the size of the specified MachineInstr.

GetInstSize - Return the size of the specified MachineInstr.

Definition at line 778 of file ARMBaseInstrInfo.cpp.

References llvm::alignTo(), llvm::MachineFunction::getInfo(), llvm::TargetMachine::getMCAsmInfo(), llvm::MachineBasicBlock::getParent(), llvm::MCInstrDesc::getSize(), llvm::MachineFunction::getTarget(), llvm::ARMFunctionInfo::isThumbFunction(), MBB, MI, and Size.

Referenced by llvm::ARMBasicBlockUtils::computeBlockSize(), llvm::ARMBasicBlockUtils::getOffsetOf(), and predictBranchSizeForIfCvt().

◆ getNumLDMAddresses()

unsigned ARMBaseInstrInfo::getNumLDMAddresses ( const MachineInstr &  MI) const

Get the number of addresses by LDM or VLDM or zero for unknown.

Definition at line 3721 of file ARMBaseInstrInfo.cpp.

References E, I, MI, and Size.

◆ getNumMicroOps()

unsigned ARMBaseInstrInfo::getNumMicroOps ( const InstrItineraryData *  ItinData,
const MachineInstr &  MI 
) const
override

Definition at line 3775 of file ARMBaseInstrInfo.cpp.

References llvm::ARMSubtarget::DoubleIssue, llvm::ARMSubtarget::DoubleIssueCheckUnalignedAccess, llvm::getAlign(), llvm::ARMSubtarget::getLdStMultipleTiming(), llvm::InstrItineraryData::getNumMicroOps(), getNumMicroOpsSingleIssuePlusExtras(), getNumMicroOpsSwiftLdSt(), llvm::MCInstrDesc::getNumOperands(), llvm::MCInstrDesc::getSchedClass(), llvm::InstrItineraryData::isEmpty(), llvm::ARMSubtarget::isSwift(), llvm_unreachable, llvm::MCInstrDesc::mayLoad(), llvm::MCInstrDesc::mayStore(), MI, llvm::ARMSubtarget::SingleIssue, and llvm::ARMSubtarget::SingleIssuePlusExtras.

◆ getOperandLatency() [1/2]

int ARMBaseInstrInfo::getOperandLatency ( const InstrItineraryData *  ItinData,
const MachineInstr &  DefMI,
unsigned  DefIdx,
const MachineInstr &  UseMI,
unsigned  UseIdx 
) const
override

Definition at line 4378 of file ARMBaseInstrInfo.cpp.

References DefMI, getBundledDefMI(), getBundledUseMI(), llvm::MachineInstr::getDesc(), llvm::MachineOperand::getReg(), getRegisterInfo(), llvm::MachineInstr::isCopyLike(), llvm::InstrItineraryData::isEmpty(), llvm::MachineInstr::isImplicitDef(), llvm::MachineInstr::isInsertSubreg(), llvm::MachineInstr::isRegSequence(), and UseMI.

Referenced by getOperandLatency().

◆ getOperandLatency() [2/2]

int ARMBaseInstrInfo::getOperandLatency ( const InstrItineraryData *  ItinData,
SDNode *  DefNode,
unsigned  DefIdx,
SDNode *  UseNode,
unsigned  UseIdx 
) const
override

Definition at line 4475 of file ARMBaseInstrInfo.cpp.

References llvm::get(), llvm::getAlign(), llvm::ARM_AM::getAM2Offset(), llvm::ARM_AM::getAM2ShiftOpc(), llvm::SDNode::getMachineOpcode(), llvm::MCInstrDesc::getOpcode(), llvm::SDNode::getOperand(), llvm::InstrItineraryData::getOperandCycle(), getOperandLatency(), llvm::ARMSubtarget::getPreISelOperandLatencyAdjustment(), llvm::MCInstrDesc::getSchedClass(), llvm::ARMSubtarget::isCortexA7(), llvm::ARMSubtarget::isCortexA8(), llvm::InstrItineraryData::isEmpty(), llvm::ARMSubtarget::isLikeA9(), llvm::SDNode::isMachineOpcode(), llvm::ARMSubtarget::isSwift(), llvm::Latency, llvm::ARM_AM::lsl, llvm::ARM_AM::lsr, llvm::MCInstrDesc::mayLoad(), and llvm::MCInstrDesc::Opcode.

◆ getOutliningCandidateInfo()

outliner::OutlinedFunction ARMBaseInstrInfo::getOutliningCandidateInfo ( std::vector< outliner::Candidate > &  RepeatedSequenceLocs) const
override

Definition at line 5872 of file ARMBaseInstrInfo.cpp.

References llvm::outliner::Candidate::back(), llvm::ARMFunctionInfo::branchTargetEnforcement(), llvm::CallingConv::C, OutlinerCosts::CallDefault, OutlinerCosts::CallNoLRSave, OutlinerCosts::CallRegSave, OutlinerCosts::CallTailCall, OutlinerCosts::CallThunk, llvm::erase_if(), OutlinerCosts::FrameDefault, OutlinerCosts::FrameNoLRSave, OutlinerCosts::FrameRegSave, OutlinerCosts::FrameTailCall, OutlinerCosts::FrameThunk, llvm::outliner::Candidate::front(), getRegisterInfo(), isLRAvailable(), llvm::Last, MachineOutlinerDefault, MachineOutlinerNoLRSave, MachineOutlinerRegSave, MachineOutlinerTailCall, MachineOutlinerThunk, MI, llvm::partition(), OutlinerCosts::SaveRestoreLROnStack, llvm::ARMFunctionInfo::shouldSignReturnAddress(), TRI, and UnsafeRegsDead.

◆ getOutliningType()

outliner::InstrType ARMBaseInstrInfo::getOutliningType ( MachineBasicBlock::iterator &  MIT,
unsigned  Flags 
) const
override

Definition at line 6278 of file ARMBaseInstrInfo.cpp.

References Callee, llvm::ARMII::DomainMask, llvm::ARMII::DomainMVE, llvm::MachineFunction::getFrameInfo(), llvm::MachineModuleInfo::getMachineFunction(), llvm::MachineFunction::getMMI(), llvm::MachineFrameInfo::getNumObjects(), getRegisterInfo(), llvm::ARMSubtarget::getStackAlignment(), llvm::MachineFrameInfo::getStackSize(), llvm::outliner::Illegal, llvm::outliner::Invisible, llvm::MachineFrameInfo::isCalleeSavedInfoValid(), isPredicated(), llvm::outliner::Legal, llvm::outliner::LegalTerminator, MI, TRI, llvm::MCInstrDesc::TSFlags, and llvm::Align::value().

◆ getPartialRegUpdateClearance()

unsigned ARMBaseInstrInfo::getPartialRegUpdateClearance ( const MachineInstr &  MI,
unsigned  OpNum,
const TargetRegisterInfo *  TRI 
) const
override

Definition at line 5341 of file ARMBaseInstrInfo.cpp.

References assert(), contains(), llvm::ARMSubtarget::getPartialUpdateClearance(), llvm::MachineOperand::getReg(), llvm::MachineOperand::getSubReg(), MI, llvm::MachineOperand::readsReg(), and TRI.

◆ getPredicate()

ARMCC::CondCodes llvm::ARMBaseInstrInfo::getPredicate ( const MachineInstr &  MI) const
inline

Definition at line 165 of file ARMBaseInstrInfo.h.

References llvm::ARMCC::AL, and MI.

◆ getRegisterInfo()

virtual const ARMBaseRegisterInfo & llvm::ARMBaseInstrInfo::getRegisterInfo ( ) const
pure virtual

Implemented in llvm::ARMInstrInfo, llvm::Thumb1InstrInfo, and llvm::Thumb2InstrInfo.

Referenced by copyPhysReg(), expandPostRAPseudo(), getOperandLatency(), getOutliningCandidateInfo(), getOutliningType(), isMBBSafeToOutlineFrom(), isProfitableToIfCvt(), loadRegFromStackSlot(), optimizeCompareInstr(), predictBranchSizeForIfCvt(), setExecutionDomain(), and storeRegToStackSlot().

◆ getRegSequenceLikeInputs()

bool ARMBaseInstrInfo::getRegSequenceLikeInputs ( const MachineInstr &  MI,
unsigned  DefIdx,
SmallVectorImpl< RegSubRegPairAndIdx > &  InputRegs 
) const
overrideprotected

Build the equivalent inputs of a REG_SEQUENCE for the given MI and DefIdx.

[out] InputRegs of the equivalent REG_SEQUENCE. Each element of the list is modeled as <Reg:SubReg, SubIdx>. E.g., REG_SEQUENCE %1:sub1, sub0, %2, sub1 would produce two elements:

  • %1:sub1, sub0
  • %2<:0>, sub1
Returns
true if it is possible to build such an input sequence with the pair MI, DefIdx. False otherwise.
Precondition
MI.isRegSequenceLike().

Definition at line 5453 of file ARMBaseInstrInfo.cpp.

References assert(), llvm::MachineOperand::getReg(), llvm::MachineOperand::getSubReg(), llvm::MachineOperand::isUndef(), llvm_unreachable, MI, and llvm::SmallVectorTemplateBase< T, bool >::push_back().

◆ getSerializableBitmaskMachineOperandTargetFlags()

ArrayRef< std::pair< unsigned, const char * > > ARMBaseInstrInfo::getSerializableBitmaskMachineOperandTargetFlags ( ) const
override

Definition at line 5546 of file ARMBaseInstrInfo.cpp.

◆ getSerializableDirectMachineOperandTargetFlags()

ArrayRef< std::pair< unsigned, const char * > > ARMBaseInstrInfo::getSerializableDirectMachineOperandTargetFlags ( ) const
override

Definition at line 5537 of file ARMBaseInstrInfo.cpp.

◆ getSubtarget()

const ARMSubtarget & llvm::ARMBaseInstrInfo::getSubtarget ( ) const
inline

Definition at line 127 of file ARMBaseInstrInfo.h.

Referenced by isPredicable(), and llvm::Thumb2InstrInfo::optimizeSelect().

◆ getUnindexedOpcode()

virtual unsigned llvm::ARMBaseInstrInfo::getUnindexedOpcode ( unsigned  Opc) const
pure virtual

Implemented in llvm::ARMInstrInfo, llvm::Thumb1InstrInfo, and llvm::Thumb2InstrInfo.

Referenced by convertToThreeAddress().

◆ hasNOP()

bool ARMBaseInstrInfo::hasNOP ( ) const

Definition at line 5435 of file ARMBaseInstrInfo.cpp.

Referenced by llvm::ARMInstrInfo::getNop().

◆ insertBranch()

unsigned ARMBaseInstrInfo::insertBranch ( MachineBasicBlock &  MBB,
MachineBasicBlock *  TBB,
MachineBasicBlock *  FBB,
ArrayRef< MachineOperand >  Cond,
const DebugLoc &  DL,
int *  BytesAdded = nullptr 
) const
override

Definition at line 498 of file ARMBaseInstrInfo.cpp.

References llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addMBB(), llvm::ARMCC::AL, assert(), llvm::BuildMI(), Cond, DL, llvm::get(), llvm::MachineFunction::getInfo(), llvm::MachineBasicBlock::getParent(), isThumb(), llvm::ARMFunctionInfo::isThumb2Function(), llvm::ARMFunctionInfo::isThumbFunction(), MBB, llvm::predOps(), and TBB.

◆ insertOutlinedCall()

MachineBasicBlock::iterator ARMBaseInstrInfo::insertOutlinedCall ( Module &  M,
MachineBasicBlock &  MBB,
MachineBasicBlock::iterator &  It,
MachineFunction &  MF,
outliner::Candidate &  C 
) const
override

Definition at line 6682 of file ARMBaseInstrInfo.cpp.

References llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addGlobalAddress(), llvm::MachineBasicBlock::addLiveIn(), llvm::ARMCC::AL, assert(), llvm::BuildMI(), llvm::CallingConv::C, copyPhysReg(), llvm::get(), llvm::MachineFunction::getName(), llvm::MachineBasicBlock::insert(), llvm::MachineBasicBlock::isLiveIn(), llvm::ARMFunctionInfo::isLRSpilled(), llvm::ARMSubtarget::isTargetMachO(), isThumb(), MachineOutlinerNoLRSave, MachineOutlinerRegSave, MachineOutlinerTailCall, MachineOutlinerThunk, MBB, llvm::predOps(), and llvm::ARMFunctionInfo::shouldSignReturnAddress().

◆ isAddImmediate()

std::optional< RegImmPair > ARMBaseInstrInfo::isAddImmediate ( const MachineInstr &  MI,
Register  Reg 
) const
override

Definition at line 5560 of file ARMBaseInstrInfo.cpp.

References llvm::MachineOperand::getReg(), llvm::MachineOperand::isReg(), MI, and llvm::Offset.

◆ isCopyInstrImpl()

std::optional< DestSourcePair > ARMBaseInstrInfo::isCopyInstrImpl ( const MachineInstr &  MI) const
overrideprotected

If the specific machine instruction is an instruction that moves/copies value from one register to another register return destination and source registers as machine operands.

Definition at line 1058 of file ARMBaseInstrInfo.cpp.

References MI.

Referenced by describeLoadedValue().

◆ isCPSRDefined()

bool ARMBaseInstrInfo::isCPSRDefined ( const MachineInstr &  MI)
static

Definition at line 685 of file ARMBaseInstrInfo.cpp.

References MI.

Referenced by analyzeLoopForPipelining(), and isEligibleForITBlock().

◆ isFpMLxInstruction() [1/2]

bool llvm::ARMBaseInstrInfo::isFpMLxInstruction ( unsigned  Opcode) const
inline

isFpMLxInstruction - Return true if the specified opcode is a fp MLA / MLS instruction.

Definition at line 500 of file ARMBaseInstrInfo.h.

References llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::count().

◆ isFpMLxInstruction() [2/2]

bool ARMBaseInstrInfo::isFpMLxInstruction ( unsigned  Opcode,
unsigned &  MulOpc,
unsigned &  AddSubOpc,
bool &  NegAcc,
bool &  HasLane 
) const

isFpMLxInstruction - This version also returns the multiply opcode and the addition / subtraction opcode to expand to.

Return true for 'HasLane' for the MLX instructions with an extra lane operand.

Definition at line 5007 of file ARMBaseInstrInfo.cpp.

References ARM_MLxTable, llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::end(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::find(), and I.

◆ isFunctionSafeToOutlineFrom()

bool ARMBaseInstrInfo::isFunctionSafeToOutlineFrom ( MachineFunction &  MF,
bool  OutlineFromLinkOnceODRs 
) const
override

ARM supports the MachineOutliner.

Definition at line 6206 of file ARMBaseInstrInfo.cpp.

References F, llvm::MachineFunction::getFunction(), llvm::MachineFunction::getInfo(), and llvm::ARMFunctionInfo::isThumb1OnlyFunction().

◆ isLoadFromStackSlot()

unsigned ARMBaseInstrInfo::isLoadFromStackSlot ( const MachineInstr &  MI,
int &  FrameIndex 
) const
override

Definition at line 1558 of file ARMBaseInstrInfo.cpp.

References MI.

◆ isLoadFromStackSlotPostFE()

unsigned ARMBaseInstrInfo::isLoadFromStackSlotPostFE ( const MachineInstr &  MI,
int &  FrameIndex 
) const
override

Definition at line 1616 of file ARMBaseInstrInfo.cpp.

References llvm::SmallVectorTemplateCommon< T, typename >::front(), MI, and llvm::SmallVectorBase< Size_T >::size().

◆ isMBBSafeToOutlineFrom()

bool ARMBaseInstrInfo::isMBBSafeToOutlineFrom ( MachineBasicBlock &  MBB,
unsigned &  Flags 
) const
override

Definition at line 6229 of file ARMBaseInstrInfo.cpp.

References llvm::LiveRegUnits::accumulate(), llvm::LiveRegUnits::addLiveOuts(), llvm::any_of(), assert(), llvm::LiveRegUnits::available(), llvm::MachineBasicBlock::back(), llvm::MachineBasicBlock::getParent(), llvm::MachineFunction::getRegInfo(), getRegisterInfo(), llvm::MachineInstr::isCall(), isLRAvailable(), llvm::MachineBasicBlock::isReturnBlock(), MBB, MI, llvm::MachineBasicBlock::rbegin(), llvm::MachineBasicBlock::rend(), llvm::reverse(), and llvm::MachineRegisterInfo::tracksLiveness().

◆ isPredicable()

bool ARMBaseInstrInfo::isPredicable ( const MachineInstr &  MI) const
override

isPredicable - Return true if the specified instruction can be predicated.

By default, this returns true for every instruction with a PredicateOperand.

Definition at line 724 of file ARMBaseInstrInfo.cpp.

References llvm::ARMII::DomainMask, llvm::ARMII::DomainNEON, llvm::MachineFunction::getInfo(), llvm::MachineFunction::getSubtarget(), getSubtarget(), isEligibleForITBlock(), llvm::isIndirectCall(), llvm::isIndirectControlFlowNotComingBack(), llvm::ARMFunctionInfo::isThumb2Function(), llvm::isV8EligibleForIT(), MI, and llvm::ARMSubtarget::restrictIT().

◆ isPredicated()

bool ARMBaseInstrInfo::isPredicated ( const MachineInstr &  MI) const
override

Definition at line 560 of file ARMBaseInstrInfo.cpp.

References llvm::ARMCC::AL, E, I, and MI.

Referenced by analyzeBranch(), getExecutionDomain(), getOutliningType(), llvm::ARMBlockPlacement::moveBasicBlock(), optimizeCompareInstr(), setExecutionDomain(), and shouldSink().

◆ isProfitableToDupForIfCvt()

bool llvm::ARMBaseInstrInfo::isProfitableToDupForIfCvt ( MachineBasicBlock &  MBB,
unsigned  NumCycles,
BranchProbability  Probability 
) const
inlineoverride

Definition at line 275 of file ARMBaseInstrInfo.h.

◆ isProfitableToIfCvt() [1/2]

bool ARMBaseInstrInfo::isProfitableToIfCvt ( MachineBasicBlock &  MBB,
unsigned  NumCycles,
unsigned  ExtraPredCycles,
BranchProbability  Probability 
) const
override

Definition at line 2108 of file ARMBaseInstrInfo.cpp.

References llvm::MachineBasicBlock::empty(), llvm::findCMPToFoldIntoCBZ(), llvm::MachineFunction::getFunction(), llvm::MachineInstr::getOpcode(), llvm::MachineBasicBlock::getParent(), getRegisterInfo(), llvm::Function::hasOptSize(), isProfitableToIfCvt(), MBB, llvm::MachineBasicBlock::pred_begin(), llvm::MachineBasicBlock::rbegin(), and TRI.

Referenced by isProfitableToIfCvt().

◆ isProfitableToIfCvt() [2/2]

bool ARMBaseInstrInfo::isProfitableToIfCvt ( MachineBasicBlock &  TMBB,
unsigned  NumT,
unsigned  ExtraT,
MachineBasicBlock &  FMBB,
unsigned  NumF,
unsigned  ExtraF,
BranchProbability  Probability 
) const
override

Definition at line 2134 of file ARMBaseInstrInfo.cpp.

References llvm::BranchProbability::getCompl(), llvm::MachineFunction::getFunction(), llvm::ARMSubtarget::getMispredictionPenalty(), llvm::MachineBasicBlock::getParent(), llvm::Function::hasMinSize(), llvm::ARMSubtarget::isThumb2(), llvm::MachineBasicBlock::pred_size(), llvm::BranchProbability::scale(), and TBB.

◆ isProfitableToUnpredicate()

bool ARMBaseInstrInfo::isProfitableToUnpredicate ( MachineBasicBlock &  TMBB,
MachineBasicBlock &  FMBB 
) const
override

Definition at line 2236 of file ARMBaseInstrInfo.cpp.

◆ isSchedulingBoundary()

bool ARMBaseInstrInfo::isSchedulingBoundary ( const MachineInstr &  MI,
const MachineBasicBlock *  MBB,
const MachineFunction &  MF 
) const
override

Definition at line 2058 of file ARMBaseInstrInfo.cpp.

References llvm::MachineBasicBlock::end(), I, llvm::isSEHInstruction(), MBB, and MI.

◆ isStoreToStackSlot()

unsigned ARMBaseInstrInfo::isStoreToStackSlot ( const MachineInstr &  MI,
int &  FrameIndex 
) const
override

Definition at line 1307 of file ARMBaseInstrInfo.cpp.

References MI.

◆ isStoreToStackSlotPostFE()

unsigned ARMBaseInstrInfo::isStoreToStackSlotPostFE ( const MachineInstr &  MI,
int &  FrameIndex 
) const
override

Definition at line 1359 of file ARMBaseInstrInfo.cpp.

References llvm::SmallVectorTemplateCommon< T, typename >::front(), MI, and llvm::SmallVectorBase< Size_T >::size().

◆ isSwiftFastImmShift()

bool ARMBaseInstrInfo::isSwiftFastImmShift ( const MachineInstr *  MI) const

Returns true if the instruction has a shift by immediate that can be executed in one cycle less.

Definition at line 5439 of file ARMBaseInstrInfo.cpp.

References llvm::ARM_AM::getSORegOffset(), llvm::ARM_AM::getSORegShOp(), llvm::ARM_AM::lsl, llvm::ARM_AM::lsr, and MI.

◆ isUnspillableTerminatorImpl()

bool llvm::ARMBaseInstrInfo::isUnspillableTerminatorImpl ( const MachineInstr *  MI) const
inlineoverride

Definition at line 369 of file ARMBaseInstrInfo.h.

References MI.

◆ loadRegFromStackSlot()

void ARMBaseInstrInfo::loadRegFromStackSlot ( MachineBasicBlock &  MBB,
MachineBasicBlock::iterator  MBBI,
Register  DestReg,
int  FrameIndex,
const TargetRegisterClass *  RC,
const TargetRegisterInfo *  TRI,
Register  VReg 
) const
override

Definition at line 1372 of file ARMBaseInstrInfo.cpp.

References llvm::MachineInstrBuilder::add(), AddDReg(), llvm::MachineInstrBuilder::addFrameIndex(), llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addMemOperand(), llvm::MachineInstrBuilder::addReg(), llvm::addUnpredicatedMveVpredNOp(), llvm::ARMCC::AL, llvm::BuildMI(), llvm::RegState::DefineNoRead, DL, llvm::MachineBasicBlock::end(), llvm::get(), llvm::MachinePointerInfo::getFixedStack(), llvm::MachineFunction::getFrameInfo(), llvm::MachineFunction::getMachineMemOperand(), llvm::MachineFrameInfo::getObjectAlign(), llvm::MachineFrameInfo::getObjectSize(), llvm::MachineBasicBlock::getParent(), getRegisterInfo(), I, llvm::RegState::ImplicitDefine, llvm::Register::isPhysical(), llvm_unreachable, MBB, llvm::MachineMemOperand::MOLoad, llvm::predOps(), and TRI.

Referenced by llvm::Thumb2InstrInfo::loadRegFromStackSlot().

◆ mergeOutliningCandidateAttributes()

void ARMBaseInstrInfo::mergeOutliningCandidateAttributes ( Function &  F,
std::vector< outliner::Candidate > &  Candidates 
) const
override

Definition at line 6194 of file ARMBaseInstrInfo.cpp.

References llvm::CallingConv::C, F, llvm::Function::getFnAttribute(), and llvm::Function::hasFnAttribute().

◆ optimizeCompareInstr()

bool ARMBaseInstrInfo::optimizeCompareInstr ( MachineInstr &  CmpInstr,
Register  SrcReg,
Register  SrcReg2,
int64_t  CmpMask,
int64_t  CmpValue,
const MachineRegisterInfo *  MRI 
) const
override

optimizeCompareInstr - Convert the instruction to set the zero flag so that we can remove a "comparison with zero"; Remove a redundant CMP instruction if the flags can be updated in the same way by an earlier instruction such as SUB.

optimizeCompareInstr - Convert the instruction supplying the argument to the comparison into one that sets the zero bit in the flags register; Remove a redundant Compare instruction if an earlier instruction can set the flags in the same way as Compare.

E.g. SUBrr(r1,r2) and CMPrr(r1,r2). We also handle the case where two operands are swapped: SUBrr(r1,r2) and CMPrr(r2,r1), by updating the condition code of instructions which use the flags.

Definition at line 3027 of file ARMBaseInstrInfo.cpp.

References llvm::ARMCC::AL, assert(), B, llvm::MachineBasicBlock::begin(), CC, llvm::MachineOperand::clobbersPhysReg(), E, llvm::MachineBasicBlock::end(), llvm::ARMCC::EQ, llvm::MachineInstr::eraseFromParent(), llvm::ARMCC::GE, getCmpToAddCondition(), llvm::MachineOperand::getImm(), llvm::MachineInstr::getNumOperands(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineInstr::getParent(), llvm::MachineOperand::getReg(), getRegisterInfo(), getSwappedCondition(), llvm::ARMCC::GT, llvm::ARMCC::HI, llvm::ARMCC::HS, I, llvm::MachineBasicBlock::insert(), llvm::MachineOperand::isDef(), isOptimizeCompareCandidate(), isPredicated(), isRedundantFlagInstr(), llvm::MachineOperand::isReg(), llvm::MachineOperand::isRegMask(), isSuitableForMask(), llvm::ARMCC::LE, llvm::ARMCC::LO, llvm::ARMCC::LS, llvm::ARMCC::LT, MBB, MI, llvm::ARMCC::MI, llvm::MachineInstr::modifiesRegister(), MRI, llvm::ARMCC::NE, llvm::ARMCC::PL, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::MachineInstr::readsRegister(), llvm::SmallVectorBase< Size_T >::size(), llvm::MachineBasicBlock::successors(), TRI, llvm::ARMCC::VC, and llvm::ARMCC::VS.

◆ optimizeSelect()

MachineInstr * ARMBaseInstrInfo::optimizeSelect ( MachineInstr &  MI,
SmallPtrSetImpl< MachineInstr * > &  SeenMIs,
bool  PreferFalse 
) const
override

Definition at line 2354 of file ARMBaseInstrInfo.cpp.

References llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addImm(), assert(), llvm::BuildMI(), llvm::MachineInstr::clearKillInfo(), llvm::condCodeOp(), DefMI, llvm::SmallPtrSetImpl< PtrType >::erase(), llvm::MachineInstr::eraseFromParent(), llvm::MachineInstr::getDesc(), llvm::MachineInstr::getNumOperands(), llvm::MCInstrDesc::getNumOperands(), llvm::MachineInstr::getOperand(), llvm::ARMCC::getOppositeCondition(), llvm::MachineInstr::getParent(), llvm::MachineOperand::getReg(), llvm::MachineInstr::hasOptionalDef(), llvm::SmallPtrSetImpl< PtrType >::insert(), MI, MRI, llvm::MCInstrDesc::operands(), llvm::MachineOperand::setImplicit(), and llvm::MachineInstr::tieOperands().

Referenced by llvm::Thumb2InstrInfo::optimizeSelect().

◆ PredicateInstruction()

bool ARMBaseInstrInfo::PredicateInstruction ( MachineInstr &  MI,
ArrayRef< MachineOperand >  Pred 
) const
override

Definition at line 601 of file ARMBaseInstrInfo.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), assert(), llvm::get(), llvm::getMatchingCondBranchOpcode(), getReg(), llvm::isUncondBranchOpcode(), MI, llvm::MCInstrDesc::operands(), llvm::MachineOperand::setImm(), llvm::ARMII::ThumbArithFlagSetting, and llvm::MCInstrDesc::TSFlags.

◆ predictBranchSizeForIfCvt()

unsigned ARMBaseInstrInfo::predictBranchSizeForIfCvt ( MachineInstr &  MI) const
override

Definition at line 2213 of file ARMBaseInstrInfo.cpp.

References llvm::findCMPToFoldIntoCBZ(), getInstSizeInBytes(), getRegisterInfo(), llvm::ARMSubtarget::isThumb2(), MI, and Size.

◆ produceSameValue()

bool ARMBaseInstrInfo::produceSameValue ( const MachineInstr &  MI0,
const MachineInstr &  MI1,
const MachineRegisterInfo *  MRI 
) const
override

Definition at line 1860 of file ARMBaseInstrInfo.cpp.

References llvm::MachineConstantPoolEntry::ConstVal, llvm::MachineFunction::getConstantPool(), llvm::MachineConstantPool::getConstants(), llvm::MachineOperand::getGlobal(), llvm::MachineOperand::getIndex(), llvm::MachineInstr::getNumOperands(), llvm::MachineOperand::getOffset(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineBasicBlock::getParent(), llvm::MachineInstr::getParent(), llvm::MachineOperand::getReg(), llvm::ARMConstantPoolValue::hasSameValue(), llvm::MachineInstr::IgnoreVRegDefs, llvm::MachineInstr::isIdenticalTo(), llvm::MachineOperand::isIdenticalTo(), llvm::MachineConstantPoolEntry::isMachineConstantPoolEntry(), llvm::Register::isVirtual(), llvm::MachineConstantPoolEntry::MachineCPVal, MRI, produceSameValue(), and llvm::MachineConstantPoolEntry::Val.

Referenced by produceSameValue().

◆ reMaterialize()

void ARMBaseInstrInfo::reMaterialize ( MachineBasicBlock &  MBB,
MachineBasicBlock::iterator  MI,
Register  DestReg,
unsigned  SubIdx,
const MachineInstr &  Orig,
const TargetRegisterInfo &  TRI 
) const
override

Definition at line 1808 of file ARMBaseInstrInfo.cpp.

References llvm::MachineInstrBuilder::addConstantPoolIndex(), llvm::MachineInstrBuilder::addImm(), llvm::BuildMI(), llvm::MachineFunction::CloneMachineInstr(), llvm::MachineInstrBuilder::cloneMemRefs(), duplicateCPV(), llvm::get(), llvm::MachineInstr::getDebugLoc(), llvm::MachineOperand::getIndex(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineBasicBlock::getParent(), llvm::MachineOperand::getReg(), I, llvm::MachineBasicBlock::insert(), MBB, MI, and TRI.

◆ removeBranch()

unsigned ARMBaseInstrInfo::removeBranch ( MachineBasicBlock &  MBB,
int *  BytesRemoved = nullptr 
) const
override

Definition at line 471 of file ARMBaseInstrInfo.cpp.

References assert(), llvm::MachineBasicBlock::begin(), llvm::MachineBasicBlock::end(), llvm::MachineBasicBlock::getLastNonDebugInstr(), I, llvm::isCondBranchOpcode(), llvm::isUncondBranchOpcode(), and MBB.

Referenced by analyzeBranch().

◆ reverseBranchCondition()

bool ARMBaseInstrInfo::reverseBranchCondition ( SmallVectorImpl< MachineOperand > &  Cond) const
override

Definition at line 550 of file ARMBaseInstrInfo.cpp.

References CC, Cond, and llvm::ARMCC::getOppositeCondition().

◆ setExecutionDomain()

void ARMBaseInstrInfo::setExecutionDomain ( MachineInstr &  MI,
unsigned  Domain 
) const
override

Definition at line 5133 of file ARMBaseInstrInfo.cpp.

References llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), llvm::ARMCC::AL, assert(), llvm::BuildMI(), llvm::RegState::Define, ExeNEON, llvm::get(), getCorrespondingDRegAndLane(), getImplicitSPRUseForDPRUse(), getRegisterInfo(), llvm::getUndefRegState(), llvm::RegState::Implicit, isPredicated(), llvm_unreachable, MI, llvm::predOps(), TRI, and llvm::RegState::Undef.

◆ shouldOutlineFromFunctionByDefault()

bool ARMBaseInstrInfo::shouldOutlineFromFunctionByDefault ( MachineFunction &  MF) const
override

Enable outlining by default at -Oz.

Definition at line 6746 of file ARMBaseInstrInfo.cpp.

References llvm::MachineFunction::getFunction(), llvm::Function::hasMinSize(), and llvm::ARMSubtarget::isMClass().

◆ shouldScheduleLoadsNear()

bool ARMBaseInstrInfo::shouldScheduleLoadsNear ( SDNode *  Load1,
SDNode *  Load2,
int64_t  Offset1,
int64_t  Offset2,
unsigned  NumLoads 
) const
override

shouldScheduleLoadsNear - This is a used by the pre-regalloc scheduler to determine (in conjunction with areLoadsFromSameBasePtr) if two loads should be scheduled togther.

On some targets if two loads are loading from addresses in the same cache line, it's better if they are scheduled together. This function takes two integers that represent the load offsets from the common base address. It returns true if it decides it's desirable to schedule the two loads together. "NumLoads" is the number of loads that have already been scheduled after Load1.

On some targets if two loads are loading from addresses in the same cache line, it's better if they are scheduled together. This function takes two integers that represent the load offsets from the common base address. It returns true if it decides it's desirable to schedule the two loads together. "NumLoads" is the number of loads that have already been scheduled after Load1.

FIXME: remove this in favor of the MachineInstr interface once pre-RA-sched is permanently disabled.

Definition at line 2028 of file ARMBaseInstrInfo.cpp.

References assert(), llvm::SDNode::getMachineOpcode(), and llvm::ARMSubtarget::isThumb1Only().

◆ shouldSink()

bool ARMBaseInstrInfo::shouldSink ( const MachineInstr &  MI) const
override

Definition at line 3307 of file ARMBaseInstrInfo.cpp.

References analyzeCompare(), isPredicated(), isRedundantFlagInstr(), and MI.

◆ storeRegToStackSlot()

void ARMBaseInstrInfo::storeRegToStackSlot ( MachineBasicBlock &  MBB,
MachineBasicBlock::iterator  MBBI,
Register  SrcReg,
bool  isKill,
int  FrameIndex,
const TargetRegisterClass *  RC,
const TargetRegisterInfo *  TRI,
Register  VReg 
) const
override

Definition at line 1115 of file ARMBaseInstrInfo.cpp.

References llvm::MachineInstrBuilder::add(), AddDReg(), llvm::MachineInstrBuilder::addFrameIndex(), llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addMemOperand(), llvm::MachineInstrBuilder::addReg(), llvm::addUnpredicatedMveVpredNOp(), llvm::ARMCC::AL, llvm::BuildMI(), llvm::get(), llvm::MachinePointerInfo::getFixedStack(), llvm::MachineFunction::getFrameInfo(), llvm::getKillRegState(), llvm::MachineFunction::getMachineMemOperand(), llvm::MachineFrameInfo::getObjectAlign(), llvm::MachineFrameInfo::getObjectSize(), llvm::MachineBasicBlock::getParent(), getRegisterInfo(), I, llvm_unreachable, MBB, llvm::MachineMemOperand::MOStore, llvm::predOps(), and TRI.

Referenced by llvm::Thumb2InstrInfo::storeRegToStackSlot().

◆ SubsumesPredicate()

bool ARMBaseInstrInfo::SubsumesPredicate ( ArrayRef< MachineOperand >  Pred1,
ArrayRef< MachineOperand >  Pred2 
) const
override

Definition at line 635 of file ARMBaseInstrInfo.cpp.

References llvm::ARMCC::AL, llvm::ARMCC::EQ, llvm::ARMCC::GE, llvm::ARMCC::GT, llvm::ARMCC::HI, llvm::ARMCC::HS, llvm::ARMCC::LE, llvm::ARMCC::LO, llvm::ARMCC::LS, llvm::ARMCC::LT, and llvm::ArrayRef< T >::size().

The documentation for this class was generated from the following files:
Generated on Thu Feb 2 2023 13:06:19 for LLVM by doxygen 1.9.6