13#ifndef LLVM_LIB_TARGET_AARCH64_AARCH64INSTRINFO_H
14#define LLVM_LIB_TARGET_AARCH64_AARCH64INSTRINFO_H
22#define GET_INSTRINFO_HEADER
23#include "AArch64GenInstrInfo.inc"
27class AArch64Subtarget;
34#define FALKOR_STRIDED_ACCESS_MD "falkor.strided.access"
193 Register &DstReg,
unsigned &SubIdx)
const override;
200 int &FrameIndex)
const override;
202 int &FrameIndex)
const override;
285 std::optional<ExtAddrMode>
307 int64_t &
Offset,
bool &OffsetIsScalable,
319 int64_t &MinOffset, int64_t &MaxOffset);
322 int64_t Offset1,
bool OffsetIsScalable1,
324 int64_t Offset2,
bool OffsetIsScalable2,
325 unsigned ClusterSize,
326 unsigned NumBytes)
const override;
330 MCRegister SrcReg,
bool KillSrc,
unsigned Opcode,
333 DebugLoc DL,
unsigned DestReg,
unsigned SrcReg,
334 bool KillSrc,
unsigned Opcode,
unsigned ZeroReg,
338 bool KillSrc)
const override;
342 bool isKill,
int FrameIndex,
368 int64_t BrOffset)
const override;
380 bool AllowModify =
false)
const override;
382 MachineBranchPredicate &MBP,
383 bool AllowModify)
const override;
385 int *BytesRemoved =
nullptr)
const override;
389 int *BytesAdded =
nullptr)
const override;
391 std::unique_ptr<TargetInstrInfo::PipelinerLoopInfo>
398 int &)
const override;
417 Register &SrcReg2, int64_t &CmpMask,
418 int64_t &CmpValue)
const override;
422 Register SrcReg2, int64_t CmpMask, int64_t CmpValue,
436 bool DoRegPressureReduce)
const override;
441 bool Invert)
const override;
454 std::pair<unsigned, unsigned>
464 bool OutlineFromLinkOnceODRs)
const override;
466 std::vector<outliner::Candidate> &RepeatedSequenceLocs)
const override;
468 Function &
F, std::vector<outliner::Candidate> &Candidates)
const override;
472 std::pair<MachineBasicBlock::iterator, MachineBasicBlock::iterator>>
484 bool AllowSideEffects =
true)
const override;
508 std::optional<ParamLoadedValue>
518 int64_t &NumPredicateVectors,
519 int64_t &NumDataVectors);
528 unsigned Scale)
const;
535 bool FrameSetup)
const;
537#define GET_INSTRINFO_HELPER_DECLS
538#include "AArch64GenInstrInfo.inc"
544 std::optional<DestSourcePair>
546 std::optional<DestSourcePair>
550 unsigned getInstBundleLength(
const MachineInstr &
MI)
const;
556 void fixupPostOutline(MachineBasicBlock &
MBB)
const;
558 void instantiateCondBranch(MachineBasicBlock &
MBB,
const DebugLoc &
DL,
559 MachineBasicBlock *
TBB,
560 ArrayRef<MachineOperand>
Cond)
const;
561 bool substituteCmpToZero(MachineInstr &CmpInstr,
unsigned SrcReg,
562 const MachineRegisterInfo &
MRI)
const;
563 bool removeCmpToZeroOrOne(MachineInstr &CmpInstr,
unsigned SrcReg,
564 int CmpValue,
const MachineRegisterInfo &
MRI)
const;
568 Register findRegisterToSaveLRTo(outliner::Candidate &
C)
const;
572 bool optimizePTestInstr(MachineInstr *PTest,
unsigned MaskReg,
574 const MachineRegisterInfo *
MRI)
const;
586 this->N |= UsedFlags.
N;
587 this->Z |= UsedFlags.
Z;
588 this->C |= UsedFlags.
C;
589 this->V |= UsedFlags.
V;
599std::optional<UsedNZCV>
601 const TargetRegisterInfo &
TRI,
602 SmallVectorImpl<MachineInstr *> *CCUseInstrs =
nullptr);
607 const MachineInstr &
UseMI,
608 const TargetRegisterInfo *
TRI);
610MCCFIInstruction
createDefCFA(
const TargetRegisterInfo &
TRI,
unsigned FrameReg,
612 bool LastAdjustmentWasScalable =
true);
614 const StackOffset &OffsetFromDefCFA);
621 const DebugLoc &
DL,
unsigned DestReg,
unsigned SrcReg,
622 StackOffset
Offset,
const TargetInstrInfo *
TII,
624 bool SetNZCV =
false,
bool NeedsWinCFI =
false,
625 bool *HasWinCFI =
nullptr,
bool EmitCFAOffset =
false,
626 StackOffset InitialOffset = {},
627 unsigned FrameReg = AArch64::SP);
633 unsigned FrameReg, StackOffset &
Offset,
634 const AArch64InstrInfo *
TII);
658 bool *OutUseUnscaledOp =
nullptr,
659 unsigned *OutUnscaledOp =
nullptr,
660 int64_t *EmittableOffset =
nullptr);
695 case AArch64::PTRUE_B:
696 case AArch64::PTRUE_H:
697 case AArch64::PTRUE_S:
698 case AArch64::PTRUE_D:
710 using namespace AArch64PACKey;
712 case IA:
case IB:
return AArch64::XPACI;
713 case DA:
case DB:
return AArch64::XPACD;
721 using namespace AArch64PACKey;
723 case IA:
return Zero ? AArch64::AUTIZA : AArch64::AUTIA;
724 case IB:
return Zero ? AArch64::AUTIZB : AArch64::AUTIB;
725 case DA:
return Zero ? AArch64::AUTDZA : AArch64::AUTDA;
726 case DB:
return Zero ? AArch64::AUTDZB : AArch64::AUTDB;
733 using namespace AArch64PACKey;
735 case IA:
return Zero ? AArch64::PACIZA : AArch64::PACIA;
736 case IB:
return Zero ? AArch64::PACIZB : AArch64::PACIB;
737 case DA:
return Zero ? AArch64::PACDZA : AArch64::PACDA;
738 case DB:
return Zero ? AArch64::PACDZB : AArch64::PACDB;
743#define TSFLAG_ELEMENT_SIZE_TYPE(X) (X)
744#define TSFLAG_DESTRUCTIVE_INST_TYPE(X) ((X) << 3)
745#define TSFLAG_FALSE_LANE_TYPE(X) ((X) << 7)
746#define TSFLAG_INSTR_FLAGS(X) ((X) << 9)
747#define TSFLAG_SME_MATRIX_TYPE(X) ((X) << 11)
796#undef TSFLAG_ELEMENT_SIZE_TYPE
797#undef TSFLAG_DESTRUCTIVE_INST_TYPE
798#undef TSFLAG_FALSE_LANE_TYPE
799#undef TSFLAG_INSTR_FLAGS
800#undef TSFLAG_SME_MATRIX_TYPE
unsigned const MachineRegisterInfo * MRI
MachineInstrBuilder & UseMI
MachineInstrBuilder MachineInstrBuilder & DefMI
#define TSFLAG_DESTRUCTIVE_INST_TYPE(X)
#define TSFLAG_SME_MATRIX_TYPE(X)
#define TSFLAG_FALSE_LANE_TYPE(X)
#define TSFLAG_INSTR_FLAGS(X)
#define TSFLAG_ELEMENT_SIZE_TYPE(X)
MachineBasicBlock MachineBasicBlock::iterator DebugLoc DL
MachineBasicBlock MachineBasicBlock::iterator MBBI
const HexagonInstrInfo * TII
unsigned const TargetRegisterInfo * TRI
const SmallVectorImpl< MachineOperand > MachineBasicBlock * TBB
const SmallVectorImpl< MachineOperand > & Cond
static bool isHForm(const MachineInstr &MI)
Returns whether the instruction is in H form (16 bit operands)
void insertSelect(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, const DebugLoc &DL, Register DstReg, ArrayRef< MachineOperand > Cond, Register TrueReg, Register FalseReg) const override
static bool hasBTISemantics(const MachineInstr &MI)
Returns whether the instruction can be compatible with non-zero BTYPE.
static bool isQForm(const MachineInstr &MI)
Returns whether the instruction is in Q form (128 bit operands)
static void decomposeStackOffsetForFrameOffsets(const StackOffset &Offset, int64_t &NumBytes, int64_t &NumPredicateVectors, int64_t &NumDataVectors)
Returns the offset in parts to which this frame offset can be decomposed for the purpose of describin...
static bool getMemOpInfo(unsigned Opcode, TypeSize &Scale, TypeSize &Width, int64_t &MinOffset, int64_t &MaxOffset)
Returns true if opcode Opc is a memory operation.
static bool isTailCallReturnInst(const MachineInstr &MI)
Returns true if MI is one of the TCRETURN* instructions.
static bool isFPRCopy(const MachineInstr &MI)
Does this instruction rename an FPR without modifying bits?
MachineInstr * emitLdStWithAddr(MachineInstr &MemI, const ExtAddrMode &AM) const override
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 an...
static int getMemScale(const MachineInstr &MI)
MachineBasicBlock * getBranchDestBlock(const MachineInstr &MI) const override
std::optional< RegImmPair > isAddImmediate(const MachineInstr &MI, Register Reg) const override
bool isSubregFoldable() const override
unsigned getInstSizeInBytes(const MachineInstr &MI) const override
GetInstSize - Return the number of bytes of code the specified instruction may be.
uint64_t getElementSizeForOpcode(unsigned Opc) const
Returns the vector element size (B, H, S or D) of an SVE opcode.
outliner::InstrType getOutliningTypeImpl(MachineBasicBlock::iterator &MIT, unsigned Flags) const override
bool areMemAccessesTriviallyDisjoint(const MachineInstr &MIa, const MachineInstr &MIb) const override
void copyPhysReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator I, const DebugLoc &DL, MCRegister DestReg, MCRegister SrcReg, bool KillSrc) const override
static bool isGPRCopy(const MachineInstr &MI)
Does this instruction rename a GPR without modifying bits?
static unsigned convertToFlagSettingOpc(unsigned Opc)
Return the opcode that set flags when possible.
bool getMachineCombinerPatterns(MachineInstr &Root, SmallVectorImpl< unsigned > &Patterns, bool DoRegPressureReduce) const override
Return true when there is potentially a faster code sequence for an instruction chain ending in Root.
bool isBranchOffsetInRange(unsigned BranchOpc, int64_t BrOffset) const override
bool canInsertSelect(const MachineBasicBlock &, ArrayRef< MachineOperand > Cond, Register, Register, Register, int &, int &, int &) const override
static const MachineOperand & getLdStOffsetOp(const MachineInstr &MI)
Returns the immediate offset operator of a load/store.
bool isCoalescableExtInstr(const MachineInstr &MI, Register &SrcReg, Register &DstReg, unsigned &SubIdx) const override
bool isWhileOpcode(unsigned Opc) const
Returns true if the opcode is for an SVE WHILE## instruction.
static std::optional< unsigned > getUnscaledLdSt(unsigned Opc)
Returns the unscaled load/store for the scaled load/store opcode, if there is a corresponding unscale...
static bool hasUnscaledLdStOffset(unsigned Opc)
Return true if it has an unscaled load/store offset.
static bool hasUnscaledLdStOffset(MachineInstr &MI)
static bool isPreLdSt(const MachineInstr &MI)
Returns whether the instruction is a pre-indexed load/store.
MachineBasicBlock::iterator insertOutlinedCall(Module &M, MachineBasicBlock &MBB, MachineBasicBlock::iterator &It, MachineFunction &MF, outliner::Candidate &C) const override
std::optional< ExtAddrMode > getAddrModeFromMemoryOp(const MachineInstr &MemI, const TargetRegisterInfo *TRI) const override
bool getMemOperandsWithOffsetWidth(const MachineInstr &MI, SmallVectorImpl< const MachineOperand * > &BaseOps, int64_t &Offset, bool &OffsetIsScalable, LocationSize &Width, const TargetRegisterInfo *TRI) const override
bool analyzeBranchPredicate(MachineBasicBlock &MBB, MachineBranchPredicate &MBP, bool AllowModify) const override
static bool isSEHInstruction(const MachineInstr &MI)
Return true if the instructions is a SEH instruciton used for unwinding on Windows.
void insertIndirectBranch(MachineBasicBlock &MBB, MachineBasicBlock &NewDestBB, MachineBasicBlock &RestoreBB, const DebugLoc &DL, int64_t BrOffset, RegScavenger *RS) const override
SmallVector< std::pair< MachineBasicBlock::iterator, MachineBasicBlock::iterator > > getOutlinableRanges(MachineBasicBlock &MBB, unsigned &Flags) const override
static bool isPairableLdStInst(const MachineInstr &MI)
Return true if pairing the given load or store may be paired with another.
void genAlternativeCodeSequence(MachineInstr &Root, unsigned Pattern, SmallVectorImpl< MachineInstr * > &InsInstrs, SmallVectorImpl< MachineInstr * > &DelInstrs, DenseMap< unsigned, unsigned > &InstrIdxForVirtReg) const override
When getMachineCombinerPatterns() finds patterns, this function generates the instructions that could...
const AArch64RegisterInfo & getRegisterInfo() const
getRegisterInfo - TargetInstrInfo is a superset of MRegister info.
static bool isPreSt(const MachineInstr &MI)
Returns whether the instruction is a pre-indexed store.
MachineInstr * foldMemoryOperandImpl(MachineFunction &MF, MachineInstr &MI, ArrayRef< unsigned > Ops, MachineBasicBlock::iterator InsertPt, int FrameIndex, LiveIntervals *LIS=nullptr, VirtRegMap *VRM=nullptr) const override
void insertNoop(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI) const override
static bool isPairedLdSt(const MachineInstr &MI)
Returns whether the instruction is a paired load/store.
bool useMachineCombiner() const override
AArch64 supports MachineCombiner.
ArrayRef< std::pair< MachineMemOperand::Flags, const char * > > getSerializableMachineMemOperandTargetFlags() const override
void loadRegFromStackSlot(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI, Register DestReg, int FrameIndex, const TargetRegisterClass *RC, const TargetRegisterInfo *TRI, Register VReg) const override
bool isExtendLikelyToBeFolded(MachineInstr &ExtMI, MachineRegisterInfo &MRI) const override
static bool isFalkorShiftExtFast(const MachineInstr &MI)
Returns true if the instruction has a shift by immediate that can be executed in one cycle less.
std::optional< ParamLoadedValue > describeLoadedValue(const MachineInstr &MI, Register Reg) const override
bool getMemOperandWithOffsetWidth(const MachineInstr &MI, const MachineOperand *&BaseOp, int64_t &Offset, bool &OffsetIsScalable, TypeSize &Width, const TargetRegisterInfo *TRI) const
If OffsetIsScalable is set to 'true', the offset is scaled by vscale.
Register isLoadFromStackSlot(const MachineInstr &MI, int &FrameIndex) const override
bool reverseBranchCondition(SmallVectorImpl< MachineOperand > &Cond) const override
static bool isStridedAccess(const MachineInstr &MI)
Return true if the given load or store is a strided memory access.
bool shouldClusterMemOps(ArrayRef< const MachineOperand * > BaseOps1, int64_t Offset1, bool OffsetIsScalable1, ArrayRef< const MachineOperand * > BaseOps2, int64_t Offset2, bool OffsetIsScalable2, unsigned ClusterSize, unsigned NumBytes) const override
Detect opportunities for ldp/stp formation.
bool expandPostRAPseudo(MachineInstr &MI) const override
unsigned int getTailDuplicateSize(CodeGenOptLevel OptLevel) const override
bool isFunctionSafeToOutlineFrom(MachineFunction &MF, bool OutlineFromLinkOnceODRs) const override
static bool isFpOrNEON(const MachineInstr &MI)
Returns whether the instruction is FP or NEON.
void storeRegToStackSlot(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI, Register SrcReg, bool isKill, int FrameIndex, const TargetRegisterClass *RC, const TargetRegisterInfo *TRI, Register VReg) const override
bool shouldOutlineFromFunctionByDefault(MachineFunction &MF) const override
unsigned removeBranch(MachineBasicBlock &MBB, int *BytesRemoved=nullptr) const override
bool isThroughputPattern(unsigned Pattern) const override
Return true when a code sequence can improve throughput.
void copyGPRRegTuple(MachineBasicBlock &MBB, MachineBasicBlock::iterator I, DebugLoc DL, unsigned DestReg, unsigned SrcReg, bool KillSrc, unsigned Opcode, unsigned ZeroReg, llvm::ArrayRef< unsigned > Indices) const
void buildClearRegister(Register Reg, MachineBasicBlock &MBB, MachineBasicBlock::iterator Iter, DebugLoc &DL, bool AllowSideEffects=true) const override
void buildOutlinedFrame(MachineBasicBlock &MBB, MachineFunction &MF, const outliner::OutlinedFunction &OF) const override
ArrayRef< std::pair< unsigned, const char * > > getSerializableDirectMachineOperandTargetFlags() const override
MachineOperand & getMemOpBaseRegImmOfsOffsetOperand(MachineInstr &LdSt) const
Return the immediate offset of the base register in a load/store LdSt.
bool analyzeBranch(MachineBasicBlock &MBB, MachineBasicBlock *&TBB, MachineBasicBlock *&FBB, SmallVectorImpl< MachineOperand > &Cond, bool AllowModify=false) const override
bool canFoldIntoAddrMode(const MachineInstr &MemI, Register Reg, const MachineInstr &AddrI, ExtAddrMode &AM) const override
static bool isLdStPairSuppressed(const MachineInstr &MI)
Return true if pairing the given load or store is hinted to be unprofitable.
bool isFunctionSafeToSplit(const MachineFunction &MF) const override
bool isAssociativeAndCommutative(const MachineInstr &Inst, bool Invert) const override
Return true when Inst is associative and commutative so that it can be reassociated.
std::unique_ptr< TargetInstrInfo::PipelinerLoopInfo > analyzeLoopForPipelining(MachineBasicBlock *LoopBB) const override
bool isSchedulingBoundary(const MachineInstr &MI, const MachineBasicBlock *MBB, const MachineFunction &MF) const override
unsigned insertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB, MachineBasicBlock *FBB, ArrayRef< MachineOperand > Cond, const DebugLoc &DL, int *BytesAdded=nullptr) const override
MachineBasicBlock::iterator probedStackAlloc(MachineBasicBlock::iterator MBBI, Register TargetReg, bool FrameSetup) const
bool optimizeCompareInstr(MachineInstr &CmpInstr, Register SrcReg, Register SrcReg2, int64_t CmpMask, int64_t CmpValue, const MachineRegisterInfo *MRI) const override
optimizeCompareInstr - Convert the instruction supplying the argument to the comparison into one that...
std::optional< outliner::OutlinedFunction > getOutliningCandidateInfo(std::vector< outliner::Candidate > &RepeatedSequenceLocs) const override
static unsigned getLoadStoreImmIdx(unsigned Opc)
Returns the index for the immediate for a given instruction.
static bool isGPRZero(const MachineInstr &MI)
Does this instruction set its full destination register to zero?
std::pair< unsigned, unsigned > decomposeMachineOperandsTargetFlags(unsigned TF) 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,...
CombinerObjective getCombinerObjective(unsigned Pattern) const override
bool isMBBSafeToSplitToCold(const MachineBasicBlock &MBB) const override
bool isAsCheapAsAMove(const MachineInstr &MI) const override
bool isLegalAddressingMode(unsigned NumBytes, int64_t Offset, unsigned Scale) const
std::optional< DestSourcePair > isCopyLikeInstrImpl(const MachineInstr &MI) const override
static void suppressLdStPair(MachineInstr &MI)
Hint that pairing the given load or store is unprofitable.
Register isStoreToStackSlot(const MachineInstr &MI, int &FrameIndex) const override
static bool isPreLd(const MachineInstr &MI)
Returns whether the instruction is a pre-indexed load.
ArrayRef< std::pair< unsigned, const char * > > getSerializableBitmaskMachineOperandTargetFlags() const override
void copyPhysRegTuple(MachineBasicBlock &MBB, MachineBasicBlock::iterator I, const DebugLoc &DL, MCRegister DestReg, MCRegister SrcReg, bool KillSrc, unsigned Opcode, llvm::ArrayRef< unsigned > Indices) const
bool optimizeCondBranch(MachineInstr &MI) const override
Replace csincr-branch sequence by simple conditional branch.
static int getMemScale(unsigned Opc)
Scaling factor for (scaled or unscaled) load or store.
bool isCandidateToMergeOrPair(const MachineInstr &MI) const
Return true if this is a load/store that can be potentially paired/merged.
MCInst getNop() const override
static const MachineOperand & getLdStBaseOp(const MachineInstr &MI)
Returns the base register operator of a load/store.
bool isPTestLikeOpcode(unsigned Opc) const
Returns true if the opcode is for an SVE instruction that sets the condition codes as if it's results...
void mergeOutliningCandidateAttributes(Function &F, std::vector< outliner::Candidate > &Candidates) const override
static void decomposeStackOffsetForDwarfOffsets(const StackOffset &Offset, int64_t &ByteSized, int64_t &VGSized)
ArrayRef - Represent a constant reference to an array (0 or more elements consecutively in memory),...
Instances of this class represent a single low-level machine instruction.
Wrapper class representing physical registers. Should be passed by value.
MachineInstrBundleIterator< MachineInstr > iterator
Representation of each machine instruction.
Flags
Flags values. These may be or'd together.
MachineOperand class - Representation of each machine instruction operand.
MachineRegisterInfo - Keep track of information for virtual and physical registers,...
A Module instance is used to store all the information related to an LLVM module.
Wrapper class representing virtual and physical registers.
This class consists of common code factored out of the SmallVector class to reduce code duplication b...
This is a 'vector' (really, a variable-sized array), optimized for the case when the array is small.
StackOffset holds a fixed and a scalable offset in bytes.
virtual MachineInstr * foldMemoryOperandImpl(MachineFunction &MF, MachineInstr &MI, ArrayRef< unsigned > Ops, MachineBasicBlock::iterator InsertPt, int FrameIndex, LiveIntervals *LIS=nullptr, VirtRegMap *VRM=nullptr) const
Target-dependent implementation for foldMemoryOperand.
TargetRegisterInfo base class - We assume that the target defines a static array of TargetRegisterDes...
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
int getSVERevInstr(uint16_t Opcode)
int getSMEPseudoMap(uint16_t Opcode)
static const uint64_t InstrFlagIsWhile
static const uint64_t InstrFlagIsPTestLike
@ DestructiveBinaryShImmUnpred
@ DestructiveInstTypeMask
@ DestructiveUnaryPassthru
@ DestructiveTernaryCommWithRev
@ DestructiveBinaryCommWithRev
int getSVEPseudoMap(uint16_t Opcode)
int getSVENonRevInstr(uint16_t Opcode)
@ C
The default llvm calling convention, compatible with C.
InstrType
Represents how an instruction should be mapped by the outliner.
This is an optimization pass for GlobalISel generic memory operations.
static bool isCondBranchOpcode(int Opc)
MCCFIInstruction createDefCFA(const TargetRegisterInfo &TRI, unsigned FrameReg, unsigned Reg, const StackOffset &Offset, bool LastAdjustmentWasScalable=true)
static bool isPTrueOpcode(unsigned Opc)
int isAArch64FrameOffsetLegal(const MachineInstr &MI, StackOffset &Offset, bool *OutUseUnscaledOp=nullptr, unsigned *OutUnscaledOp=nullptr, int64_t *EmittableOffset=nullptr)
Check if the Offset is a valid frame offset for MI.
static bool isIndirectBranchOpcode(int Opc)
static unsigned getXPACOpcodeForKey(AArch64PACKey::ID K)
Return XPAC opcode to be used for a ptrauth strip using the given key.
MCCFIInstruction createCFAOffset(const TargetRegisterInfo &MRI, unsigned Reg, const StackOffset &OffsetFromDefCFA)
unsigned getBLRCallOpcode(const MachineFunction &MF)
Return opcode to be used for indirect calls.
AArch64FrameOffsetStatus
Use to report the frame offset status in isAArch64FrameOffsetLegal.
@ AArch64FrameOffsetIsLegal
Offset is legal.
@ AArch64FrameOffsetCanUpdate
Offset can apply, at least partly.
@ AArch64FrameOffsetCannotUpdate
Offset cannot apply.
AArch64MachineCombinerPattern
@ MULSUBv2i32_indexed_OP1
@ MULADDv4i16_indexed_OP2
@ MULSUBv8i16_indexed_OP2
@ MULSUBv4i16_indexed_OP2
@ MULSUBv4i32_indexed_OP2
@ MULADDv2i32_indexed_OP1
@ MULADDv4i32_indexed_OP1
@ MULADDv2i32_indexed_OP2
@ MULSUBv4i16_indexed_OP1
@ MULADDv4i32_indexed_OP2
@ MULSUBv8i16_indexed_OP1
@ MULSUBv2i32_indexed_OP2
@ MULADDv8i16_indexed_OP1
@ MULSUBv4i32_indexed_OP1
@ MULADDv8i16_indexed_OP2
@ MULADDv4i16_indexed_OP1
void emitFrameOffset(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI, const DebugLoc &DL, unsigned DestReg, unsigned SrcReg, StackOffset Offset, const TargetInstrInfo *TII, MachineInstr::MIFlag=MachineInstr::NoFlags, bool SetNZCV=false, bool NeedsWinCFI=false, bool *HasWinCFI=nullptr, bool EmitCFAOffset=false, StackOffset InitialOffset={}, unsigned FrameReg=AArch64::SP)
emitFrameOffset - Emit instructions as needed to set DestReg to SrcReg plus Offset.
CombinerObjective
The combiner's goal may differ based on which pattern it is attempting to optimize.
std::optional< UsedNZCV > examineCFlagsUse(MachineInstr &MI, MachineInstr &CmpInstr, const TargetRegisterInfo &TRI, SmallVectorImpl< MachineInstr * > *CCUseInstrs=nullptr)
CodeGenOptLevel
Code generation optimization level.
static bool isUncondBranchOpcode(int Opc)
static unsigned getPACOpcodeForKey(AArch64PACKey::ID K, bool Zero)
Return PAC opcode to be used for a ptrauth sign using the given key, or its PAC*Z variant that doesn'...
bool rewriteAArch64FrameIndex(MachineInstr &MI, unsigned FrameRegIdx, unsigned FrameReg, StackOffset &Offset, const AArch64InstrInfo *TII)
rewriteAArch64FrameIndex - Rewrite MI to access 'Offset' bytes from the FP.
static const MachineMemOperand::Flags MOSuppressPair
bool isNZCVTouchedInInstructionRange(const MachineInstr &DefMI, const MachineInstr &UseMI, const TargetRegisterInfo *TRI)
Return true if there is an instruction /after/ DefMI and before UseMI which either reads or clobbers ...
static const MachineMemOperand::Flags MOStridedAccess
static unsigned getAUTOpcodeForKey(AArch64PACKey::ID K, bool Zero)
Return AUT opcode to be used for a ptrauth auth using the given key, or its AUT*Z variant that doesn'...
Used to describe addressing mode similar to ExtAddrMode in CodeGenPrepare.
UsedNZCV & operator|=(const UsedNZCV &UsedFlags)
An individual sequence of instructions to be replaced with a call to an outlined function.
The information necessary to create an outlined function for some class of candidate.