LLVM 18.0.0git
Public Member Functions | Static Public Member Functions | Protected Member Functions | List of all members
llvm::PPCInstrInfo Class Reference

#include "Target/PowerPC/PPCInstrInfo.h"

Inheritance diagram for llvm::PPCInstrInfo:
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Public Member Functions

 PPCInstrInfo (PPCSubtarget &STI)
 
bool isLoadFromConstantPool (MachineInstr *I) const
 
const Constant * getConstantFromConstantPool (MachineInstr *I) const
 
const PPCRegisterInfo & getRegisterInfo () const
 getRegisterInfo - TargetInstrInfo is a superset of MRegister info.
 
bool isXFormMemOp (unsigned Opcode) const
 
bool isPrefixed (unsigned Opcode) const
 
bool isSExt32To64 (unsigned Opcode) const
 
bool isZExt32To64 (unsigned Opcode) const
 
ScheduleHazardRecognizer * CreateTargetHazardRecognizer (const TargetSubtargetInfo *STI, const ScheduleDAG *DAG) const override
 CreateTargetHazardRecognizer - Return the hazard recognizer to use for this target when scheduling the DAG.
 
ScheduleHazardRecognizer * CreateTargetPostRAHazardRecognizer (const InstrItineraryData *II, const ScheduleDAG *DAG) const override
 CreateTargetPostRAHazardRecognizer - Return the postRA hazard recognizer to use for this target when scheduling the DAG.
 
unsigned getInstrLatency (const InstrItineraryData *ItinData, const MachineInstr &MI, unsigned *PredCost=nullptr) 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
 
bool hasLowDefLatency (const TargetSchedModel &SchedModel, const MachineInstr &DefMI, unsigned DefIdx) const override
 
bool useMachineCombiner () const override
 
void genAlternativeCodeSequence (MachineInstr &Root, MachineCombinerPattern Pattern, SmallVectorImpl< MachineInstr * > &InsInstrs, SmallVectorImpl< MachineInstr * > &DelInstrs, DenseMap< unsigned, unsigned > &InstrIdxForVirtReg) const override
 When getMachineCombinerPatterns() finds patterns, this function generates the instructions that could replace the original code sequence.
 
bool getFMAPatterns (MachineInstr &Root, SmallVectorImpl< MachineCombinerPattern > &P, bool DoRegPressureReduce) const
 Return true when there is potentially a faster code sequence for a fma chain ending in Root.
 
bool getMachineCombinerPatterns (MachineInstr &Root, SmallVectorImpl< MachineCombinerPattern > &P, bool DoRegPressureReduce) const override
 Return true when there is potentially a faster code sequence for an instruction chain ending in <Root>.
 
bool shouldReduceRegisterPressure (const MachineBasicBlock *MBB, const RegisterClassInfo *RegClassInfo) const override
 On PowerPC, we leverage machine combiner pass to reduce register pressure when the register pressure is high for one BB.
 
void finalizeInsInstrs (MachineInstr &Root, MachineCombinerPattern &P, SmallVectorImpl< MachineInstr * > &InsInstrs) const override
 Fixup the placeholders we put in genAlternativeCodeSequence() for MachineCombiner.
 
bool isAssociativeAndCommutative (const MachineInstr &Inst, bool Invert) const override
 
int getExtendResourceLenLimit () const override
 On PowerPC, we try to reassociate FMA chain which will increase instruction size.
 
void setSpecialOperandAttr (MachineInstr &OldMI1, MachineInstr &OldMI2, MachineInstr &NewMI1, MachineInstr &NewMI2) const override
 This is an architecture-specific helper function of reassociateOps.
 
void setSpecialOperandAttr (MachineInstr &MI, uint32_t Flags) const
 
bool isCoalescableExtInstr (const MachineInstr &MI, Register &SrcReg, Register &DstReg, unsigned &SubIdx) const override
 
unsigned isLoadFromStackSlot (const MachineInstr &MI, int &FrameIndex) const override
 
bool isReallyTriviallyReMaterializable (const MachineInstr &MI) const override
 
unsigned isStoreToStackSlot (const MachineInstr &MI, int &FrameIndex) const override
 
bool findCommutedOpIndices (const MachineInstr &MI, unsigned &SrcOpIdx1, unsigned &SrcOpIdx2) const override
 
void insertNoop (MachineBasicBlock &MBB, MachineBasicBlock::iterator MI) const override
 
bool analyzeBranch (MachineBasicBlock &MBB, MachineBasicBlock *&TBB, MachineBasicBlock *&FBB, SmallVectorImpl< MachineOperand > &Cond, bool AllowModify) 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 canInsertSelect (const MachineBasicBlock &, ArrayRef< MachineOperand > Cond, Register, Register, Register, int &, int &, int &) const override
 
void insertSelect (MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, const DebugLoc &DL, Register DstReg, ArrayRef< MachineOperand > Cond, Register TrueReg, Register FalseReg) const override
 
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 storeRegToStackSlotNoUpd (MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI, unsigned SrcReg, bool isKill, int FrameIndex, const TargetRegisterClass *RC, const TargetRegisterInfo *TRI) const
 
void loadRegFromStackSlot (MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI, Register DestReg, int FrameIndex, const TargetRegisterClass *RC, const TargetRegisterInfo *TRI, Register VReg) const override
 
void loadRegFromStackSlotNoUpd (MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI, unsigned DestReg, int FrameIndex, const TargetRegisterClass *RC, const TargetRegisterInfo *TRI) const
 
unsigned getStoreOpcodeForSpill (const TargetRegisterClass *RC) const
 
unsigned getLoadOpcodeForSpill (const TargetRegisterClass *RC) const
 
bool reverseBranchCondition (SmallVectorImpl< MachineOperand > &Cond) const override
 
bool FoldImmediate (MachineInstr &UseMI, MachineInstr &DefMI, Register Reg, MachineRegisterInfo *MRI) const override
 
bool onlyFoldImmediate (MachineInstr &UseMI, MachineInstr &DefMI, Register Reg) const
 
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
 
bool isProfitableToUnpredicate (MachineBasicBlock &TMBB, MachineBasicBlock &FMBB) const override
 
bool isPredicated (const MachineInstr &MI) const override
 
bool isSchedulingBoundary (const MachineInstr &MI, const MachineBasicBlock *MBB, const MachineFunction &MF) const override
 
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 analyzeCompare (const MachineInstr &MI, Register &SrcReg, Register &SrcReg2, int64_t &Mask, int64_t &Value) const override
 
bool optimizeCompareInstr (MachineInstr &CmpInstr, Register SrcReg, Register SrcReg2, int64_t Mask, int64_t Value, const MachineRegisterInfo *MRI) const override
 
bool getMemOperandWithOffsetWidth (const MachineInstr &LdSt, const MachineOperand *&BaseOp, int64_t &Offset, unsigned &Width, const TargetRegisterInfo *TRI) const
 Return true if get the base operand, byte offset of an instruction and the memory width.
 
bool optimizeCmpPostRA (MachineInstr &MI) const
 
bool getMemOperandsWithOffsetWidth (const MachineInstr &LdSt, SmallVectorImpl< const MachineOperand * > &BaseOps, int64_t &Offset, bool &OffsetIsScalable, unsigned &Width, const TargetRegisterInfo *TRI) const override
 Get the base operand and byte offset of an instruction that reads/writes memory.
 
bool shouldClusterMemOps (ArrayRef< const MachineOperand * > BaseOps1, ArrayRef< const MachineOperand * > BaseOps2, unsigned NumLoads, unsigned NumBytes) const override
 Returns true if the two given memory operations should be scheduled adjacent.
 
bool areMemAccessesTriviallyDisjoint (const MachineInstr &MIa, const MachineInstr &MIb) const override
 Return true if two MIs access different memory addresses and false otherwise.
 
unsigned getInstSizeInBytes (const MachineInstr &MI) const override
 GetInstSize - Return the number of bytes of code the specified instruction may be.
 
MCInst getNop () const override
 Return the noop instruction to use for a noop.
 
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 expandVSXMemPseudo (MachineInstr &MI) const
 
bool expandPostRAPseudo (MachineInstr &MI) const override
 
const TargetRegisterClass * updatedRC (const TargetRegisterClass *RC) const
 
bool isTOCSaveMI (const MachineInstr &MI) const
 
std::pair< bool, bool > isSignOrZeroExtended (const unsigned Reg, const unsigned BinOpDepth, const MachineRegisterInfo *MRI) const
 
bool isSignExtended (const unsigned Reg, const MachineRegisterInfo *MRI) const
 
bool isZeroExtended (const unsigned Reg, const MachineRegisterInfo *MRI) const
 
bool convertToImmediateForm (MachineInstr &MI, MachineInstr **KilledDef=nullptr) const
 
bool foldFrameOffset (MachineInstr &MI) const
 
bool combineRLWINM (MachineInstr &MI, MachineInstr **ToErase=nullptr) const
 
bool isADDIInstrEligibleForFolding (MachineInstr &ADDIMI, int64_t &Imm) const
 
bool isADDInstrEligibleForFolding (MachineInstr &ADDMI) const
 
bool isImmInstrEligibleForFolding (MachineInstr &MI, unsigned &BaseReg, unsigned &XFormOpcode, int64_t &OffsetOfImmInstr, ImmInstrInfo &III) const
 
bool isValidToBeChangedReg (MachineInstr *ADDMI, unsigned Index, MachineInstr *&ADDIMI, int64_t &OffsetAddi, int64_t OffsetImm) const
 
void fixupIsDeadOrKill (MachineInstr *StartMI, MachineInstr *EndMI, unsigned RegNo) const
 Fixup killed/dead flag for register RegNo between instructions [StartMI, EndMI].
 
void replaceInstrWithLI (MachineInstr &MI, const LoadImmediateInfo &LII) const
 
void replaceInstrOperandWithImm (MachineInstr &MI, unsigned OpNo, int64_t Imm) const
 
bool instrHasImmForm (unsigned Opc, bool IsVFReg, ImmInstrInfo &III, bool PostRA) const
 
MachineInstr * getDefMIPostRA (unsigned Reg, MachineInstr &MI, bool &SeenIntermediateUse) const
 
void materializeImmPostRA (MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI, const DebugLoc &DL, Register Reg, int64_t Imm) const
 
bool isBDNZ (unsigned Opcode) const
 Check Opcode is BDNZ (Decrement CTR and branch if it is still nonzero).
 
MachineInstr * findLoopInstr (MachineBasicBlock &PreHeader, SmallPtrSet< MachineBasicBlock *, 8 > &Visited) const
 Find the hardware loop instruction used to set-up the specified loop.
 
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.
 

Static Public Member Functions

static bool isSameClassPhysRegCopy (unsigned Opcode)
 
static int getRecordFormOpcode (unsigned Opcode)
 

Protected Member Functions

MachineInstr * commuteInstructionImpl (MachineInstr &MI, bool NewMI, unsigned OpIdx1, unsigned OpIdx2) const override
 Commutes the operands in the given instruction.
 

Detailed Description

Definition at line 159 of file PPCInstrInfo.h.

Constructor & Destructor Documentation

◆ PPCInstrInfo()

PPCInstrInfo::PPCInstrInfo ( PPCSubtarget &  STI)
explicit

Definition at line 92 of file PPCInstrInfo.cpp.

Member Function Documentation

◆ analyzeBranch()

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

Definition at line 1268 of file PPCInstrInfo.cpp.

References llvm::MachineBasicBlock::begin(), Cond, llvm::MachineOperand::CreateImm(), llvm::MachineOperand::CreateReg(), DisableCTRLoopAnal, llvm::MachineBasicBlock::end(), llvm::MachineBasicBlock::getLastNonDebugInstr(), llvm::MachineOperand::getMBB(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), I, llvm::MachineBasicBlock::isLayoutSuccessor(), llvm::MachineOperand::isMBB(), llvm::PPCSubtarget::isPPC64(), MBB, llvm::PPC::PRED_BIT_SET, llvm::PPC::PRED_BIT_UNSET, and TBB.

◆ analyzeCompare()

bool PPCInstrInfo::analyzeCompare ( const MachineInstr &  MI,
Register &  SrcReg,
Register &  SrcReg2,
int64_t &  Mask,
int64_t &  Value 
) const
override

Definition at line 2356 of file PPCInstrInfo.cpp.

References MI.

Referenced by optimizeCmpPostRA().

◆ analyzeLoopForPipelining()

std::unique_ptr< TargetInstrInfo::PipelinerLoopInfo > PPCInstrInfo::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 5605 of file PPCInstrInfo.cpp.

References llvm::MachineBasicBlock::end(), findLoopInstr(), llvm::MachineBasicBlock::getFirstTerminator(), llvm::MachineBasicBlock::getParent(), llvm::MachineFunction::getRegInfo(), I, isBDNZ(), MRI, and llvm::MachineBasicBlock::pred_begin().

◆ areMemAccessesTriviallyDisjoint()

bool PPCInstrInfo::areMemAccessesTriviallyDisjoint ( const MachineInstr &  MIa,
const MachineInstr &  MIb 
) const
override

Return true if two MIs access different memory addresses and false otherwise.

Definition at line 5663 of file PPCInstrInfo.cpp.

References assert(), getMemOperandWithOffsetWidth(), getRegisterInfo(), llvm::MachineInstr::hasOrderedMemoryRef(), llvm::MachineInstr::hasUnmodeledSideEffects(), llvm::MachineOperand::isIdenticalTo(), llvm::MachineInstr::mayLoadOrStore(), and TRI.

◆ canInsertSelect()

bool PPCInstrInfo::canInsertSelect ( const MachineBasicBlock &  MBB,
ArrayRef< MachineOperand >  Cond,
Register  DstReg,
Register  TrueReg,
Register  FalseReg,
int &  CondCycles,
int &  TrueCycles,
int &  FalseCycles 
) const
override

Definition at line 1528 of file PPCInstrInfo.cpp.

References Cond, llvm::MachineBasicBlock::getParent(), getReg(), llvm::MachineFunction::getRegInfo(), MBB, and MRI.

◆ ClobbersPredicate()

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

Definition at line 2321 of file PPCInstrInfo.cpp.

References llvm::TargetRegisterClass::contains(), and MI.

◆ combineRLWINM()

bool PPCInstrInfo::combineRLWINM ( MachineInstr &  MI,
MachineInstr **  ToErase = nullptr 
) const

Definition at line 3850 of file PPCInstrInfo.cpp.

References assert(), llvm::dbgs(), llvm::MachineInstr::dump(), llvm::Pass::dump(), llvm::get(), llvm::APInt::getBitsSetWithWrap(), llvm::MachineOperand::getImm(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), llvm::APInt::getZExtValue(), llvm::MachineInstr::hasImplicitDef(), llvm::MachineOperand::isImm(), llvm::MachineOperand::isKill(), llvm::isRunOfOnes(), llvm::Register::isVirtual(), llvm::APInt::isZero(), LLVM_DEBUG, MI, MRI, llvm::APInt::rotl(), and llvm::MachineOperand::setIsKill().

◆ commuteInstructionImpl()

MachineInstr * PPCInstrInfo::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.

For example, we can commute rlwimi instructions, but only if the rotate amt is zero. We also have to munge the immediates a bit.

Definition at line 1139 of file PPCInstrInfo.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), assert(), llvm::BuildMI(), llvm::TargetInstrInfo::commuteInstructionImpl(), llvm::RegState::Define, llvm::getDeadRegState(), llvm::getKillRegState(), MI, and llvm::MCOI::TIED_TO.

◆ convertToImmediateForm()

bool PPCInstrInfo::convertToImmediateForm ( MachineInstr &  MI,
MachineInstr **  KilledDef = nullptr 
) const

Definition at line 3798 of file PPCInstrInfo.cpp.

References assert(), DefMI, llvm::PPCRegisterInfo::getMappedIdxOpcForImmOpc(), llvm::MachineFunction::getRegInfo(), instrHasImmForm(), llvm::PPC::isVFRegister(), MI, and MRI.

◆ copyPhysReg()

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

Definition at line 1683 of file PPCInstrInfo.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), assert(), llvm::BuildMI(), contains(), DL, llvm::PPCRegisterInfo::emitAccCopyInfo(), llvm::get(), getCRBitValue(), llvm::getCRFromCRBit(), llvm::getKillRegState(), llvm::MCInstrDesc::getNumOperands(), getRegisterInfo(), I, Idx, llvm::RegState::Kill, llvm_unreachable, MBB, TRI, and VSXSelfCopyCrash.

◆ CreateTargetHazardRecognizer()

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

CreateTargetHazardRecognizer - Return the hazard recognizer to use for this target when scheduling the DAG.

Definition at line 101 of file PPCInstrInfo.cpp.

References llvm::TargetInstrInfo::CreateTargetHazardRecognizer(), llvm::PPC::DIR_440, llvm::PPC::DIR_A2, llvm::PPC::DIR_E500mc, and llvm::PPC::DIR_E5500.

◆ CreateTargetPostRAHazardRecognizer()

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

CreateTargetPostRAHazardRecognizer - Return the postRA hazard recognizer to use for this target when scheduling the DAG.

Definition at line 118 of file PPCInstrInfo.cpp.

References assert(), llvm::PPC::DIR_440, llvm::PPC::DIR_A2, llvm::PPC::DIR_E500mc, llvm::PPC::DIR_E5500, llvm::PPC::DIR_PWR7, llvm::PPC::DIR_PWR8, llvm::MachineFunction::getSubtarget(), llvm::ScheduleDAG::MF, and llvm::ScheduleDAG::TII.

◆ decomposeMachineOperandsTargetFlags()

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

Definition at line 2978 of file PPCInstrInfo.cpp.

References llvm::PPCII::MO_ACCESS_MASK.

◆ expandPostRAPseudo()

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

Definition at line 3089 of file PPCInstrInfo.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), assert(), llvm::BuildMI(), contains(), DL, expandPostRAPseudo(), expandVSXMemPseudo(), llvm::get(), isAnImmediateOperand(), llvm::PPCSubtarget::isPPC64(), llvm::PPCSubtarget::isTargetLinux(), MBB, MI, llvm::Offset, and llvm::PPC::PRED_NE_MINUS.

Referenced by expandPostRAPseudo().

◆ expandVSXMemPseudo()

bool PPCInstrInfo::expandVSXMemPseudo ( MachineInstr &  MI) const

Definition at line 3023 of file PPCInstrInfo.cpp.

References llvm::get(), llvm_unreachable, and MI.

Referenced by expandPostRAPseudo().

◆ finalizeInsInstrs()

void PPCInstrInfo::finalizeInsInstrs ( MachineInstr &  Root,
MachineCombinerPattern &  P,
SmallVectorImpl< MachineInstr * > &  InsInstrs 
) const
override

Fixup the placeholders we put in genAlternativeCodeSequence() for MachineCombiner.

Definition at line 547 of file PPCInstrInfo.cpp.

References assert(), llvm::CallingConv::C, llvm::APFloat::changeSign(), llvm::SmallVectorBase< Size_T >::empty(), FMAOpIdxInfo, llvm::ConstantFP::get(), getConstantFromConstantPool(), llvm::MachineFunction::getConstantPool(), llvm::MachineConstantPool::getConstantPoolIndex(), llvm::MachineFunction::getDataLayout(), llvm::MachineInstr::getMF(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::DataLayout::getPrefTypeAlign(), llvm::MachineOperand::getReg(), llvm::MachineFunction::getRegInfo(), getRegisterInfo(), Idx, InfoArrayIdxMULOpIdx, MRI, P, llvm::REASSOC_XY_BAC, llvm::REASSOC_XY_BCA, and TRI.

◆ findCommutedOpIndices()

bool PPCInstrInfo::findCommutedOpIndices ( const MachineInstr &  MI,
unsigned &  SrcOpIdx1,
unsigned &  SrcOpIdx2 
) const
override

Definition at line 1223 of file PPCInstrInfo.cpp.

References llvm::TargetInstrInfo::findCommutedOpIndices(), llvm::PPC::getAltVSXFMAOpcode(), and MI.

◆ findLoopInstr()

MachineInstr * PPCInstrInfo::findLoopInstr ( MachineBasicBlock &  PreHeader,
SmallPtrSet< MachineBasicBlock *, 8 > &  Visited 
) const

Find the hardware loop instruction used to set-up the specified loop.

On PPC, we have two instructions used to set-up the hardware loop (MTCTRloop, MTCTR8loop) with corresponding endloop (BDNZ, BDNZ8) instructions to indicate the end of a loop.

Definition at line 5625 of file PPCInstrInfo.cpp.

References I, llvm::MachineBasicBlock::instrs(), and llvm::PPCSubtarget::isPPC64().

Referenced by analyzeLoopForPipelining().

◆ fixupIsDeadOrKill()

void PPCInstrInfo::fixupIsDeadOrKill ( MachineInstr *  StartMI,
MachineInstr *  EndMI,
unsigned  RegNo 
) const

Fixup killed/dead flag for register RegNo between instructions [StartMI, EndMI].

Some pre-RA or post-RA transformations may violate register killed/dead flags semantics, this function can be called to fix up. Before calling this function,

  1. Ensure that RegNo liveness is killed after instruction EndMI.
  2. Ensure that there is no new definition between (StartMI, EndMI) and possible definition for RegNo is StartMI or EndMI. For pre-RA cases, definition may be StartMI through COPY, StartMI will be adjust to true definition.
  3. We can do accurate fixup for the case when all instructions between [StartMI, EndMI] are in same basic block.
  4. For the case when StartMI and EndMI are not in same basic block, we conservatively clear kill flag for all uses of RegNo for pre-RA and for post-RA, we give an assertion as without reaching definition analysis post-RA, StartMI and EndMI are hard to keep right.

Definition at line 3470 of file PPCInstrInfo.cpp.

References assert(), E, llvm::MachineInstr::findRegisterUseOperandIdx(), llvm::MachineInstr::getNumOperands(), llvm::MachineInstr::getOperand(), llvm::MachineBasicBlock::getParent(), llvm::MachineInstr::getParent(), llvm::MachineOperand::getReg(), llvm::MachineFunction::getRegInfo(), getRegisterInfo(), llvm::MachineOperand::isDead(), llvm::MachineOperand::isKill(), llvm::MachineOperand::isReg(), llvm::MachineOperand::isUse(), llvm::Register::isVirtualRegister(), MI, MRI, llvm::MachineInstr::readsWritesVirtualRegister(), llvm::MachineBasicBlock::rend(), llvm::MachineOperand::setIsDead(), llvm::MachineOperand::setIsKill(), and Writes.

Referenced by optimizeCmpPostRA().

◆ foldFrameOffset()

bool PPCInstrInfo::foldFrameOffset ( MachineInstr &  MI) const

Definition at line 3589 of file PPCInstrInfo.cpp.

References assert(), llvm::dbgs(), llvm::MachineInstr::dump(), llvm::Pass::dump(), End, llvm::MachineInstr::eraseFromParent(), llvm::get(), getDefMIPostRA(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), llvm::MachineFunction::getRegInfo(), getRegisterInfo(), llvm::ImmInstrInfo::ImmOpNo, isADDInstrEligibleForFolding(), isImmInstrEligibleForFolding(), llvm::MachineOperand::isKill(), isValidToBeChangedReg(), LLVM_DEBUG, MI, MRI, llvm::ImmInstrInfo::OpNoForForwarding, llvm::MachineOperand::setImm(), and llvm::ImmInstrInfo::ZeroIsSpecialOrig.

◆ FoldImmediate()

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

Definition at line 2134 of file PPCInstrInfo.cpp.

References DefMI, MRI, onlyFoldImmediate(), and UseMI.

◆ genAlternativeCodeSequence()

void PPCInstrInfo::genAlternativeCodeSequence ( MachineInstr &  Root,
MachineCombinerPattern  Pattern,
SmallVectorImpl< MachineInstr * > &  InsInstrs,
SmallVectorImpl< MachineInstr * > &  DelInstrs,
DenseMap< unsigned, unsigned > &  InstrIdxForVirtReg 
) const
override

When getMachineCombinerPatterns() finds patterns, this function generates the instructions that could replace the original code sequence.

Definition at line 776 of file PPCInstrInfo.cpp.

References llvm::TargetInstrInfo::genAlternativeCodeSequence(), llvm::REASSOC_XMM_AMM_BMM, llvm::REASSOC_XY_AMM_BMM, llvm::REASSOC_XY_BAC, and llvm::REASSOC_XY_BCA.

◆ getConstantFromConstantPool()

const Constant * PPCInstrInfo::getConstantFromConstantPool ( MachineInstr *  I) const

Definition at line 741 of file PPCInstrInfo.cpp.

References assert(), DefMI, llvm::MachineFunction::getConstantPool(), llvm::MachineConstantPool::getConstants(), llvm::MachineFunction::getRegInfo(), I, MRI, and llvm::MachineInstr::uses().

Referenced by finalizeInsInstrs().

◆ getDefMIPostRA()

MachineInstr * PPCInstrInfo::getDefMIPostRA ( unsigned  Reg,
MachineInstr &  MI,
bool &  SeenIntermediateUse 
) const

Definition at line 3306 of file PPCInstrInfo.cpp.

References assert(), E, getRegisterInfo(), MI, and TRI.

Referenced by foldFrameOffset(), isValidToBeChangedReg(), and optimizeCmpPostRA().

◆ getExtendResourceLenLimit()

int llvm::PPCInstrInfo::getExtendResourceLenLimit ( ) const
inlineoverride

On PowerPC, we try to reassociate FMA chain which will increase instruction size.

Set extension resource length limit to 1 for edge case. Resource Length is calculated by scaled resource usage in getCycles(). Because of the division in getCycles(), it returns different cycles due to legacy scaled resource usage. So new resource length may be same with legacy or 1 bigger than legacy. We need to execlude the 1 bigger case even the resource length is not perserved for more FMA chain reassociations on PowerPC.

Definition at line 367 of file PPCInstrInfo.h.

◆ getFMAPatterns()

bool PPCInstrInfo::getFMAPatterns ( MachineInstr &  Root,
SmallVectorImpl< MachineCombinerPattern > &  P,
bool  DoRegPressureReduce 
) const

Return true when there is potentially a faster code sequence for a fma chain ending in Root.

All potential patterns are output in the P array.

Definition at line 372 of file PPCInstrInfo.cpp.

References assert(), llvm::dbgs(), FMAOpIdxInfo, llvm::MachineInstr::FmNsz, llvm::MachineInstr::FmReassoc, llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineBasicBlock::getParent(), llvm::MachineInstr::getParent(), llvm::MachineOperand::getReg(), llvm::MachineFunction::getRegInfo(), getRegisterInfo(), Idx, InfoArrayIdxAddOpIdx, InfoArrayIdxFAddInst, InfoArrayIdxFSubInst, InfoArrayIdxMULOpIdx, isLoadFromConstantPool(), llvm::Register::isVirtual(), LLVM_DEBUG, MBB, MRI, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::REASSOC_XMM_AMM_BMM, llvm::REASSOC_XY_AMM_BMM, llvm::REASSOC_XY_BAC, llvm::REASSOC_XY_BCA, TRI, and true.

Referenced by getMachineCombinerPatterns().

◆ getInstrLatency()

unsigned PPCInstrInfo::getInstrLatency ( const InstrItineraryData *  ItinData,
const MachineInstr &  MI,
unsigned *  PredCost = nullptr 
) const
override

Definition at line 138 of file PPCInstrInfo.cpp.

References llvm::InstrItineraryData::getOperandCycle(), llvm::MachineOperand::isDef(), llvm::MachineOperand::isImplicit(), llvm::MachineOperand::isReg(), llvm::Latency, MI, and UseOldLatencyCalc.

Referenced by getOperandLatency().

◆ getInstSizeInBytes()

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

GetInstSize - Return the number of bytes of code the specified instruction may be.

This returns the maximum number of bytes.

Definition at line 2959 of file PPCInstrInfo.cpp.

References llvm::get(), llvm::TargetMachine::getMCAsmInfo(), llvm::StackMapOpers::getNumPatchBytes(), llvm::PatchPointOpers::getNumPatchBytes(), llvm::MachineFunction::getTarget(), and MI.

◆ getLoadOpcodeForSpill()

unsigned PPCInstrInfo::getLoadOpcodeForSpill ( const TargetRegisterClass *  RC) const

Definition at line 1926 of file PPCInstrInfo.cpp.

◆ getMachineCombinerPatterns()

bool PPCInstrInfo::getMachineCombinerPatterns ( MachineInstr &  Root,
SmallVectorImpl< MachineCombinerPattern > &  P,
bool  DoRegPressureReduce 
) const
override

Return true when there is potentially a faster code sequence for an instruction chain ending in <Root>.

All potential patterns are output in the <Pattern> array.

Definition at line 761 of file PPCInstrInfo.cpp.

References llvm::Aggressive, getFMAPatterns(), llvm::TargetInstrInfo::getMachineCombinerPatterns(), llvm::TargetMachine::getOptLevel(), and llvm::PPCSubtarget::getTargetMachine().

◆ getMemOperandsWithOffsetWidth()

bool PPCInstrInfo::getMemOperandsWithOffsetWidth ( const MachineInstr &  LdSt,
SmallVectorImpl< const MachineOperand * > &  BaseOps,
int64_t &  Offset,
bool &  OffsetIsScalable,
unsigned &  Width,
const TargetRegisterInfo *  TRI 
) const
override

Get the base operand and byte offset of an instruction that reads/writes memory.

Definition at line 2850 of file PPCInstrInfo.cpp.

References getMemOperandWithOffsetWidth(), llvm::Offset, llvm::SmallVectorTemplateBase< T, bool >::push_back(), and TRI.

◆ getMemOperandWithOffsetWidth()

bool PPCInstrInfo::getMemOperandWithOffsetWidth ( const MachineInstr &  LdSt,
const MachineOperand *&  BaseOp,
int64_t &  Offset,
unsigned &  Width,
const TargetRegisterInfo *  TRI 
) const

Return true if get the base operand, byte offset of an instruction and the memory width.

Width is the size of memory that is being loaded/stored (e.g. 1, 2, 4, 8).

Definition at line 5640 of file PPCInstrInfo.cpp.

References llvm::MachineOperand::getImm(), llvm::MachineInstr::getNumExplicitOperands(), llvm::MachineInstr::getOperand(), getSize(), llvm::MachineInstr::hasOneMemOperand(), llvm::MachineOperand::isFI(), llvm::MachineOperand::isImm(), llvm::MachineOperand::isReg(), llvm::MachineInstr::mayLoadOrStore(), llvm::MachineInstr::memoperands_begin(), and llvm::Offset.

Referenced by areMemAccessesTriviallyDisjoint(), getMemOperandsWithOffsetWidth(), and shouldClusterMemOps().

◆ getNop()

MCInst PPCInstrInfo::getNop ( ) const
override

Return the noop instruction to use for a noop.

Definition at line 1259 of file PPCInstrInfo.cpp.

References llvm::MCInst::setOpcode().

◆ getOperandLatency() [1/2]

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

Definition at line 168 of file PPCInstrInfo.cpp.

References DefMI, llvm::PPC::DIR_7400, llvm::PPC::DIR_750, llvm::PPC::DIR_970, llvm::PPC::DIR_E5500, llvm::PPC::DIR_PWR4, llvm::PPC::DIR_PWR5, llvm::PPC::DIR_PWR5X, llvm::PPC::DIR_PWR6, llvm::PPC::DIR_PWR6X, llvm::PPC::DIR_PWR7, llvm::PPC::DIR_PWR8, llvm::PPCSubtarget::getCPUDirective(), getInstrLatency(), llvm::MachineInstr::getParent(), llvm::MachineOperand::getReg(), llvm::Latency, MRI, and UseMI.

◆ getOperandLatency() [2/2]

int llvm::PPCInstrInfo::getOperandLatency ( const InstrItineraryData *  ItinData,
SDNode *  DefNode,
unsigned  DefIdx,
SDNode *  UseNode,
unsigned  UseIdx 
) const
inlineoverride

Definition at line 300 of file PPCInstrInfo.h.

◆ getRecordFormOpcode()

int PPCInstrInfo::getRecordFormOpcode ( unsigned  Opcode)
static

Definition at line 5228 of file PPCInstrInfo.cpp.

◆ getRegisterInfo()

const PPCRegisterInfo & llvm::PPCInstrInfo::getRegisterInfo ( ) const
inline

getRegisterInfo - TargetInstrInfo is a superset of MRegister info.

As such, whenever a client has an instance of instruction info, it should always be able to get register info as well (through this method).

Definition at line 259 of file PPCInstrInfo.h.

Referenced by areMemAccessesTriviallyDisjoint(), copyPhysReg(), finalizeInsInstrs(), fixupIsDeadOrKill(), foldFrameOffset(), getDefMIPostRA(), getFMAPatterns(), llvm::PPCSubtarget::getRegisterInfo(), optimizeCompareInstr(), replaceInstrOperandWithImm(), shouldClusterMemOps(), and shouldReduceRegisterPressure().

◆ getSerializableBitmaskMachineOperandTargetFlags()

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

Definition at line 2999 of file PPCInstrInfo.cpp.

◆ getSerializableDirectMachineOperandTargetFlags()

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

Definition at line 2984 of file PPCInstrInfo.cpp.

◆ getStoreOpcodeForSpill()

unsigned PPCInstrInfo::getStoreOpcodeForSpill ( const TargetRegisterClass *  RC) const

Definition at line 1920 of file PPCInstrInfo.cpp.

◆ hasLowDefLatency()

bool llvm::PPCInstrInfo::hasLowDefLatency ( const TargetSchedModel &  SchedModel,
const MachineInstr &  DefMI,
unsigned  DefIdx 
) const
inlineoverride

Definition at line 307 of file PPCInstrInfo.h.

◆ insertBranch()

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

Definition at line 1475 of file PPCInstrInfo.cpp.

References llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addMBB(), assert(), llvm::BuildMI(), Cond, DL, llvm::get(), getReg(), llvm::PPCSubtarget::isPPC64(), MBB, llvm::PPC::PRED_BIT_SET, llvm::PPC::PRED_BIT_UNSET, and TBB.

◆ insertNoop()

void PPCInstrInfo::insertNoop ( MachineBasicBlock &  MBB,
MachineBasicBlock::iterator  MI 
) const
override

Definition at line 1239 of file PPCInstrInfo.cpp.

References llvm::BuildMI(), llvm::PPC::DIR_PWR6, llvm::PPC::DIR_PWR7, llvm::PPC::DIR_PWR8, llvm::PPC::DIR_PWR9, DL, llvm::get(), llvm::PPCSubtarget::getCPUDirective(), MBB, and MI.

◆ insertSelect()

void PPCInstrInfo::insertSelect ( MachineBasicBlock &  MBB,
MachineBasicBlock::iterator  MI,
const DebugLoc &  DL,
Register  DstReg,
ArrayRef< MachineOperand >  Cond,
Register  TrueReg,
Register  FalseReg 
) const
override

Definition at line 1571 of file PPCInstrInfo.cpp.

References llvm::MachineInstrBuilder::addReg(), assert(), llvm::BuildMI(), Cond, llvm::get(), llvm::MachineBasicBlock::getParent(), getReg(), llvm::MachineFunction::getRegInfo(), MBB, MI, MRI, llvm::PPC::PRED_BIT_SET, llvm::PPC::PRED_BIT_UNSET, llvm::PPC::PRED_EQ, llvm::PPC::PRED_EQ_MINUS, llvm::PPC::PRED_EQ_PLUS, llvm::PPC::PRED_GE, llvm::PPC::PRED_GE_MINUS, llvm::PPC::PRED_GE_PLUS, llvm::PPC::PRED_GT, llvm::PPC::PRED_GT_MINUS, llvm::PPC::PRED_GT_PLUS, llvm::PPC::PRED_LE, llvm::PPC::PRED_LE_MINUS, llvm::PPC::PRED_LE_PLUS, llvm::PPC::PRED_LT, llvm::PPC::PRED_LT_MINUS, llvm::PPC::PRED_LT_PLUS, llvm::PPC::PRED_NE, llvm::PPC::PRED_NE_MINUS, llvm::PPC::PRED_NE_PLUS, llvm::PPC::PRED_NU, llvm::PPC::PRED_NU_MINUS, llvm::PPC::PRED_NU_PLUS, llvm::PPC::PRED_UN, llvm::PPC::PRED_UN_MINUS, and llvm::PPC::PRED_UN_PLUS.

◆ instrHasImmForm()

bool PPCInstrInfo::instrHasImmForm ( unsigned  Opc,
bool  IsVFReg,
ImmInstrInfo &  III,
bool  PostRA 
) const

Definition at line 3987 of file PPCInstrInfo.cpp.

References llvm::ImmInstrInfo::ImmMustBeMultipleOf, llvm::ImmInstrInfo::ImmOpcode, llvm::ImmInstrInfo::ImmOpNo, llvm::ImmInstrInfo::ImmWidth, llvm::ImmInstrInfo::IsCommutative, llvm::ImmInstrInfo::IsSummingOperands, llvm_unreachable, llvm::ImmInstrInfo::OpNoForForwarding, llvm::ImmInstrInfo::SignedImm, llvm::ImmInstrInfo::TruncateImmTo, llvm::ImmInstrInfo::ZeroIsSpecialNew, and llvm::ImmInstrInfo::ZeroIsSpecialOrig.

Referenced by convertToImmediateForm(), and isImmInstrEligibleForFolding().

◆ isADDIInstrEligibleForFolding()

bool PPCInstrInfo::isADDIInstrEligibleForFolding ( MachineInstr &  ADDIMI,
int64_t &  Imm 
) const

Definition at line 3686 of file PPCInstrInfo.cpp.

References llvm::MachineOperand::getImm(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), and llvm::MachineOperand::isImm().

Referenced by isValidToBeChangedReg().

◆ isADDInstrEligibleForFolding()

bool PPCInstrInfo::isADDInstrEligibleForFolding ( MachineInstr &  ADDMI) const

Definition at line 3703 of file PPCInstrInfo.cpp.

References llvm::MachineInstr::getOpcode().

Referenced by foldFrameOffset().

◆ isAssociativeAndCommutative()

bool PPCInstrInfo::isAssociativeAndCommutative ( const MachineInstr &  Inst,
bool  Invert 
) const
override

Definition at line 254 of file PPCInstrInfo.cpp.

References llvm::MachineInstr::FmNsz, llvm::MachineInstr::FmReassoc, llvm::MachineInstr::getFlag(), and llvm::MachineInstr::getOpcode().

◆ isBDNZ()

bool PPCInstrInfo::isBDNZ ( unsigned  Opcode) const

Check Opcode is BDNZ (Decrement CTR and branch if it is still nonzero).

Definition at line 5531 of file PPCInstrInfo.cpp.

References llvm::PPCSubtarget::isPPC64().

Referenced by analyzeLoopForPipelining().

◆ isCoalescableExtInstr()

bool PPCInstrInfo::isCoalescableExtInstr ( const MachineInstr &  MI,
Register &  SrcReg,
Register &  DstReg,
unsigned &  SubIdx 
) const
override

Definition at line 1056 of file PPCInstrInfo.cpp.

References MI.

◆ isImmInstrEligibleForFolding()

bool PPCInstrInfo::isImmInstrEligibleForFolding ( MachineInstr &  MI,
unsigned &  BaseReg,
unsigned &  XFormOpcode,
int64_t &  OffsetOfImmInstr,
ImmInstrInfo &  III 
) const

Definition at line 3710 of file PPCInstrInfo.cpp.

References assert(), llvm::MachineOperand::getImm(), llvm::PPCRegisterInfo::getMappedIdxOpcForImmOpc(), llvm::MachineOperand::getReg(), llvm::ImmInstrInfo::ImmOpNo, instrHasImmForm(), llvm::MachineOperand::isImm(), llvm::MachineOperand::isKill(), llvm::MachineOperand::isReg(), llvm::ImmInstrInfo::IsSummingOperands, llvm::PPC::isVFRegister(), MI, and llvm::ImmInstrInfo::OpNoForForwarding.

Referenced by foldFrameOffset().

◆ isLoadFromConstantPool()

bool PPCInstrInfo::isLoadFromConstantPool ( MachineInstr *  I) const

Definition at line 677 of file PPCInstrInfo.cpp.

References llvm::PseudoSourceValue::ConstantPool, and I.

Referenced by getFMAPatterns().

◆ isLoadFromStackSlot()

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

Definition at line 1071 of file PPCInstrInfo.cpp.

References llvm::is_contained(), and MI.

◆ isPredicated()

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

Definition at line 2164 of file PPCInstrInfo.cpp.

◆ isPrefixed()

bool llvm::PPCInstrInfo::isPrefixed ( unsigned  Opcode) const
inline

Definition at line 264 of file PPCInstrInfo.h.

References llvm::get(), and llvm::PPCII::Prefixed.

◆ isProfitableToDupForIfCvt()

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

Definition at line 477 of file PPCInstrInfo.h.

◆ isProfitableToIfCvt() [1/2]

bool llvm::PPCInstrInfo::isProfitableToIfCvt ( MachineBasicBlock &  MBB,
unsigned  NumCycles,
unsigned  ExtraPredCycles,
BranchProbability  Probability 
) const
inlineoverride

Definition at line 465 of file PPCInstrInfo.h.

◆ isProfitableToIfCvt() [2/2]

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

Definition at line 2155 of file PPCInstrInfo.cpp.

References MBBDefinesCTR().

◆ isProfitableToUnpredicate()

bool llvm::PPCInstrInfo::isProfitableToUnpredicate ( MachineBasicBlock &  TMBB,
MachineBasicBlock &  FMBB 
) const
inlineoverride

Definition at line 482 of file PPCInstrInfo.h.

◆ isReallyTriviallyReMaterializable()

bool PPCInstrInfo::isReallyTriviallyReMaterializable ( const MachineInstr &  MI) const
override

Definition at line 1087 of file PPCInstrInfo.cpp.

References llvm::TargetInstrInfo::isReallyTriviallyReMaterializable(), llvm_unreachable, and MI.

◆ isSameClassPhysRegCopy()

static bool llvm::PPCInstrInfo::isSameClassPhysRegCopy ( unsigned  Opcode)
inlinestatic

Definition at line 274 of file PPCInstrInfo.h.

◆ isSchedulingBoundary()

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

Definition at line 2175 of file PPCInstrInfo.cpp.

References llvm::TargetInstrInfo::isSchedulingBoundary(), MBB, and MI.

◆ isSExt32To64()

bool llvm::PPCInstrInfo::isSExt32To64 ( unsigned  Opcode) const
inline

Definition at line 267 of file PPCInstrInfo.h.

References llvm::get(), and llvm::PPCII::SExt32To64.

◆ isSignExtended()

bool llvm::PPCInstrInfo::isSignExtended ( const unsigned  Reg,
const MachineRegisterInfo *  MRI 
) const
inline

Definition at line 576 of file PPCInstrInfo.h.

References isSignOrZeroExtended(), MRI, and Reg.

Referenced by optimizeCompareInstr().

◆ isSignOrZeroExtended()

std::pair< bool, bool > PPCInstrInfo::isSignOrZeroExtended ( const unsigned  Reg,
const unsigned  BinOpDepth,
const MachineRegisterInfo *  MRI 
) const

Definition at line 5363 of file PPCInstrInfo.cpp.

References definedBySignExtendingOp(), definedByZeroExtendingOp(), llvm::Function::getAttributes(), llvm::IntegerType::getBitWidth(), llvm::Function::getEntryBlock(), llvm::MachineFunction::getFunction(), llvm::MachineOperand::getGlobal(), llvm::MachineFunction::getInfo(), llvm::MachineInstr::getOperand(), llvm::MachineFunction::getRegInfo(), llvm::AttributeList::getRetAttrs(), llvm::Function::getReturnType(), llvm::MachineFunction::getSubtarget(), I, llvm::MachineBasicBlock::instr_begin(), llvm::MachineInstr::isCall(), llvm::MachineOperand::isGlobal(), llvm::MachineRegisterInfo::isLiveIn(), llvm::PPCFunctionInfo::isLiveInSExt(), llvm::PPCFunctionInfo::isLiveInZExt(), isSignOrZeroExtended(), llvm::PPCSubtarget::isSVR4ABI(), llvm::Register::isVirtualRegister(), MAX_BINOP_DEPTH, MBB, MI, and MRI.

Referenced by isSignExtended(), isSignOrZeroExtended(), and isZeroExtended().

◆ isStoreToStackSlot()

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

Definition at line 1127 of file PPCInstrInfo.cpp.

References llvm::is_contained(), and MI.

◆ isTOCSaveMI()

bool PPCInstrInfo::isTOCSaveMI ( const MachineInstr &  MI) const

Definition at line 5341 of file PPCInstrInfo.cpp.

References llvm::PPCSubtarget::getFrameLowering(), llvm::PPCFrameLowering::getTOCSaveOffset(), llvm::PPCSubtarget::isPPC64(), and MI.

◆ isValidToBeChangedReg()

bool PPCInstrInfo::isValidToBeChangedReg ( MachineInstr *  ADDMI,
unsigned  Index,
MachineInstr *&  ADDIMI,
int64_t &  OffsetAddi,
int64_t  OffsetImm 
) const

Definition at line 3753 of file PPCInstrInfo.cpp.

References assert(), getDefMIPostRA(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), isADDIInstrEligibleForFolding(), and llvm::MachineOperand::isKill().

Referenced by foldFrameOffset().

◆ isXFormMemOp()

bool llvm::PPCInstrInfo::isXFormMemOp ( unsigned  Opcode) const
inline

Definition at line 261 of file PPCInstrInfo.h.

References llvm::get(), and llvm::PPCII::XFormMemOp.

◆ isZeroExtended()

bool llvm::PPCInstrInfo::isZeroExtended ( const unsigned  Reg,
const MachineRegisterInfo *  MRI 
) const
inline

Definition at line 582 of file PPCInstrInfo.h.

References isSignOrZeroExtended(), MRI, and Reg.

Referenced by optimizeCompareInstr().

◆ isZExt32To64()

bool llvm::PPCInstrInfo::isZExt32To64 ( unsigned  Opcode) const
inline

Definition at line 270 of file PPCInstrInfo.h.

References llvm::get(), and llvm::PPCII::ZExt32To64.

◆ loadRegFromStackSlot()

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

Definition at line 2031 of file PPCInstrInfo.cpp.

References loadRegFromStackSlotNoUpd(), MBB, MI, TRI, and updatedRC().

◆ loadRegFromStackSlotNoUpd()

void PPCInstrInfo::loadRegFromStackSlotNoUpd ( MachineBasicBlock &  MBB,
MachineBasicBlock::iterator  MBBI,
unsigned  DestReg,
int  FrameIndex,
const TargetRegisterClass *  RC,
const TargetRegisterInfo *  TRI 
) const

Definition at line 2006 of file PPCInstrInfo.cpp.

References llvm::SmallVectorTemplateCommon< T, typename >::back(), DL, llvm::MachineBasicBlock::end(), llvm::MachinePointerInfo::getFixedStack(), llvm::MachineFunction::getFrameInfo(), llvm::MachineFunction::getInfo(), llvm::MachineFunction::getMachineMemOperand(), llvm::MachineFrameInfo::getObjectAlign(), llvm::MachineFrameInfo::getObjectSize(), llvm::MachineBasicBlock::getParent(), llvm::MachineBasicBlock::insert(), MBB, MI, llvm::MachineMemOperand::MOLoad, llvm::PPCFunctionInfo::setHasSpills(), and llvm::SmallVectorBase< Size_T >::size().

Referenced by loadRegFromStackSlot().

◆ materializeImmPostRA()

void PPCInstrInfo::materializeImmPostRA ( MachineBasicBlock &  MBB,
MachineBasicBlock::iterator  MBBI,
const DebugLoc &  DL,
Register  Reg,
int64_t  Imm 
) const

Definition at line 3323 of file PPCInstrInfo.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), assert(), llvm::BuildMI(), DL, llvm::get(), llvm::MachineBasicBlock::getParent(), llvm::MachineFunction::getRegInfo(), llvm::PPCSubtarget::isPPC64(), llvm::MachineRegisterInfo::isSSA(), llvm::RegState::Kill, MBB, and MBBI.

◆ onlyFoldImmediate()

bool PPCInstrInfo::onlyFoldImmediate ( MachineInstr &  UseMI,
MachineInstr &  DefMI,
Register  Reg 
) const

Definition at line 2063 of file PPCInstrInfo.cpp.

References assert(), llvm::MCOperandInfo::Constraints, llvm::dbgs(), DefMI, llvm::MCInstrDesc::getNumOperands(), llvm::MachineInstrBuilder::getReg(), llvm::MCOperandInfo::isLookupPtrRegClass(), llvm::PPCSubtarget::isPPC64(), llvm::MCInstrDesc::isPseudo(), LLVM_DEBUG, llvm::MCInstrDesc::operands(), llvm::MCOperandInfo::RegClass, and UseMI.

Referenced by FoldImmediate().

◆ optimizeCmpPostRA()

bool PPCInstrInfo::optimizeCmpPostRA ( MachineInstr &  MI) const

Definition at line 2771 of file PPCInstrInfo.cpp.

References llvm::MachineInstrBuilder::addReg(), analyzeCompare(), assert(), llvm::MachineInstr::clearRegisterDeads(), llvm::dbgs(), llvm::MachineInstr::definesRegister(), llvm::MachineInstr::dump(), fixupIsDeadOrKill(), llvm::get(), getDefMIPostRA(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineBasicBlock::getParent(), llvm::MachineInstr::getParent(), llvm::MachineOperand::getReg(), llvm::MachineFunction::getRegInfo(), llvm::MachineInstr::hasImplicitDef(), llvm::RegState::ImplicitDefine, llvm::MachineOperand::isKill(), llvm::PPCSubtarget::isPPC64(), LLVM_DEBUG, MRI, and llvm::MachineInstr::setDesc().

◆ optimizeCompareInstr()

bool PPCInstrInfo::optimizeCompareInstr ( MachineInstr &  CmpInstr,
Register  SrcReg,
Register  SrcReg2,
int64_t  Mask,
int64_t  Value,
const MachineRegisterInfo *  MRI 
) const
override

Definition at line 2386 of file PPCInstrInfo.cpp.

References llvm::MachineInstrBuilder::addReg(), assert(), B, llvm::MachineBasicBlock::begin(), llvm::BuildMI(), llvm::MachineOperand::CreateReg(), DisableCmpOpt, E, llvm::MachineBasicBlock::end(), llvm::MachineInstr::eraseFromParent(), llvm::get(), llvm::MachineInstr::getFlag(), llvm::MachineOperand::getImm(), llvm::PPC::getNonRecordFormOpcode(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineInstr::getParent(), llvm::PPC::getPredicate(), llvm::PPC::getPredicateCondition(), llvm::PPC::getPredicateHint(), llvm::MachineOperand::getReg(), getRegisterInfo(), llvm::MachineOperand::getSubReg(), llvm::PPC::getSwappedPredicate(), I, llvm::MCInstrDesc::implicit_defs(), llvm::MCInstrDesc::implicit_uses(), llvm::PPCSubtarget::isPPC64(), isSignExtended(), llvm::Register::isVirtual(), isZeroExtended(), llvm::RegState::Kill, MI, MRI, llvm::MachineInstr::NoSWrap, llvm::PPC::PRED_EQ, llvm::PPC::PRED_GE, llvm::PPC::PRED_GT, llvm::PPC::PRED_LE, llvm::PPC::PRED_LT, llvm::PPC::PRED_NE, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::MachineOperand::setImm(), llvm::SmallVectorBase< Size_T >::size(), TRI, and UseMI.

◆ PredicateInstruction()

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

Definition at line 2186 of file PPCInstrInfo.cpp.

References llvm::MachineInstrBuilder::add(), llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addMBB(), llvm::MachineInstrBuilder::addReg(), llvm::get(), getReg(), llvm::RegState::Implicit, llvm::RegState::ImplicitDefine, llvm::PPCSubtarget::isPPC64(), llvm_unreachable, MBB, MI, llvm::PPC::PRED_BIT_SET, and llvm::PPC::PRED_BIT_UNSET.

◆ removeBranch()

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

Definition at line 1443 of file PPCInstrInfo.cpp.

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

◆ replaceInstrOperandWithImm()

void PPCInstrInfo::replaceInstrOperandWithImm ( MachineInstr &  MI,
unsigned  OpNo,
int64_t  Imm 
) const

Definition at line 3252 of file PPCInstrInfo.cpp.

References assert(), getRegisterInfo(), llvm::MachineOperand::isImplicit(), MI, and TRI.

◆ replaceInstrWithLI()

void PPCInstrInfo::replaceInstrWithLI ( MachineInstr &  MI,
const LoadImmediateInfo &  LII 
) const

Definition at line 3283 of file PPCInstrInfo.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), llvm::get(), llvm::LoadImmediateInfo::Imm, llvm::RegState::ImplicitDefine, llvm::LoadImmediateInfo::Is64Bit, MI, and llvm::LoadImmediateInfo::SetCR.

◆ reverseBranchCondition()

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

Definition at line 2049 of file PPCInstrInfo.cpp.

References assert(), Cond, getReg(), and llvm::PPC::InvertPredicate().

◆ setSpecialOperandAttr() [1/2]

void PPCInstrInfo::setSpecialOperandAttr ( MachineInstr &  MI,
uint32_t  Flags 
) const

Definition at line 241 of file PPCInstrInfo.cpp.

References llvm::MachineInstr::IsExact, MI, llvm::MachineInstr::NoSWrap, and llvm::MachineInstr::NoUWrap.

◆ setSpecialOperandAttr() [2/2]

void PPCInstrInfo::setSpecialOperandAttr ( MachineInstr &  OldMI1,
MachineInstr &  OldMI2,
MachineInstr &  NewMI1,
MachineInstr &  NewMI2 
) const
override

This is an architecture-specific helper function of reassociateOps.

Set special operand attributes for new instructions after reassociation.

Definition at line 223 of file PPCInstrInfo.cpp.

References llvm::MachineInstr::clearFlag(), llvm::MachineInstr::getFlags(), llvm::MachineInstr::IsExact, llvm::MachineInstr::NoSWrap, llvm::MachineInstr::NoUWrap, and llvm::MachineInstr::setFlags().

◆ shouldClusterMemOps()

bool PPCInstrInfo::shouldClusterMemOps ( ArrayRef< const MachineOperand * >  BaseOps1,
ArrayRef< const MachineOperand * >  BaseOps2,
unsigned  NumLoads,
unsigned  NumBytes 
) const
override

Returns true if the two given memory operations should be scheduled adjacent.

Definition at line 2901 of file PPCInstrInfo.cpp.

References assert(), llvm::ArrayRef< T >::front(), llvm::MachineOperand::getIndex(), getMemOperandWithOffsetWidth(), llvm::MachineInstr::getOpcode(), llvm::MachineOperand::getParent(), llvm::MachineOperand::getReg(), getRegisterInfo(), isClusterableLdStOpcPair(), llvm::MachineOperand::isFI(), isLdStSafeToCluster(), llvm::MachineOperand::isReg(), llvm::ArrayRef< T >::size(), and TRI.

◆ shouldReduceRegisterPressure()

bool PPCInstrInfo::shouldReduceRegisterPressure ( const MachineBasicBlock *  MBB,
const RegisterClassInfo *  RegClassInfo 
) const
override

On PowerPC, we leverage machine combiner pass to reduce register pressure when the register pressure is high for one BB.

Return true if register pressure for MBB is high and ABI is supported to reduce register pressure. Otherwise return false.

Definition at line 617 of file PPCInstrInfo.cpp.

References assert(), llvm::RegPressureTracker::closeRegion(), llvm::RegisterOperands::collect(), EnableFMARegPressureReduction, llvm::MachineBasicBlock::end(), FMARPFactor, llvm::TargetMachine::getCodeModel(), llvm::MachineBasicBlock::getParent(), llvm::RegPressureTracker::getPos(), llvm::RegPressureTracker::getPressure(), llvm::MachineFunction::getRegInfo(), getRegisterInfo(), llvm::PPCSubtarget::getTargetMachine(), llvm::RegPressureTracker::init(), llvm::PPCSubtarget::isPPC64(), llvm::RegisterPressure::MaxSetPressure, MBB, llvm::CodeModel::Medium, MI, MRI, llvm::RegPressureTracker::recede(), llvm::RegPressureTracker::recedeSkipDebugValues(), llvm::reverse(), and TRI.

◆ storeRegToStackSlot()

void PPCInstrInfo::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 1973 of file PPCInstrInfo.cpp.

References MBB, MI, storeRegToStackSlotNoUpd(), TRI, and updatedRC().

◆ storeRegToStackSlotNoUpd()

void PPCInstrInfo::storeRegToStackSlotNoUpd ( MachineBasicBlock &  MBB,
MachineBasicBlock::iterator  MBBI,
unsigned  SrcReg,
bool  isKill,
int  FrameIndex,
const TargetRegisterClass *  RC,
const TargetRegisterInfo *  TRI 
) const

Definition at line 1953 of file PPCInstrInfo.cpp.

References llvm::SmallVectorTemplateCommon< T, typename >::back(), llvm::MachinePointerInfo::getFixedStack(), llvm::MachineFunction::getFrameInfo(), llvm::MachineFunction::getMachineMemOperand(), llvm::MachineFrameInfo::getObjectAlign(), llvm::MachineFrameInfo::getObjectSize(), llvm::MachineBasicBlock::getParent(), llvm::MachineBasicBlock::insert(), MBB, MI, llvm::MachineMemOperand::MOStore, and llvm::SmallVectorBase< Size_T >::size().

Referenced by storeRegToStackSlot().

◆ SubsumesPredicate()

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

Definition at line 2290 of file PPCInstrInfo.cpp.

References assert(), getReg(), llvm::PPC::PRED_EQ, llvm::PPC::PRED_GE, llvm::PPC::PRED_GT, llvm::PPC::PRED_LE, llvm::PPC::PRED_LT, and llvm::ArrayRef< T >::size().

◆ updatedRC()

const TargetRegisterClass * PPCInstrInfo::updatedRC ( const TargetRegisterClass *  RC) const

Definition at line 5222 of file PPCInstrInfo.cpp.

Referenced by loadRegFromStackSlot(), and storeRegToStackSlot().

◆ useMachineCombiner()

bool llvm::PPCInstrInfo::useMachineCombiner ( ) const
inlineoverride

Definition at line 316 of file PPCInstrInfo.h.

The documentation for this class was generated from the following files:
Generated on Fri Sep 22 2023 00:37:46 for LLVM by doxygen 1.9.6