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llvm::AArch64InstrInfo Class Reference

#include <AArch64InstrInfo.h>

Inheritance diagram for llvm::AArch64InstrInfo:
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Collaboration diagram for llvm::AArch64InstrInfo:
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Public Member Functions

 AArch64InstrInfo (const AArch64Subtarget &TM)
 
const TargetRegisterInfo & getRegisterInfo () const
 
const AArch64Subtarget & getSubTarget () const
 
void copyPhysReg (MachineBasicBlock &MBB, MachineBasicBlock::iterator I, DebugLoc DL, unsigned DestReg, unsigned SrcReg, bool KillSrc) const
 
void storeRegToStackSlot (MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, unsigned SrcReg, bool isKill, int FrameIndex, const TargetRegisterClass *RC, const TargetRegisterInfo *TRI) const
 
void loadRegFromStackSlot (MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI, unsigned DestReg, int FrameIdx, const TargetRegisterClass *RC, const TargetRegisterInfo *TRI) const
 
bool AnalyzeBranch (MachineBasicBlock &MBB, MachineBasicBlock *&TBB, MachineBasicBlock *&FBB, SmallVectorImpl< MachineOperand > &Cond, bool AllowModify=false) const
 
unsigned InsertBranch (MachineBasicBlock &MBB, MachineBasicBlock *TBB, MachineBasicBlock *FBB, const SmallVectorImpl< MachineOperand > &Cond, DebugLoc DL) const
 
unsigned RemoveBranch (MachineBasicBlock &MBB) const
 
bool ReverseBranchCondition (SmallVectorImpl< MachineOperand > &Cond) const
 
bool expandPostRAPseudo (MachineBasicBlock::iterator MI) const
 
unsigned estimateRSStackLimit (MachineFunction &MF) const
 
void getAddressConstraints (const MachineInstr &MI, int &AccessScale, int &MinOffset, int &MaxOffset) const
 
unsigned getInstSizeInBytes (const MachineInstr &MI) const
 
unsigned getInstBundleLength (const MachineInstr &MI) const
 

Detailed Description

Definition at line 27 of file AArch64InstrInfo.h.

Constructor & Destructor Documentation

AArch64InstrInfo::AArch64InstrInfo ( const AArch64Subtarget &  TM)
explicit

Definition at line 37 of file AArch64InstrInfo.cpp.

Member Function Documentation

bool AArch64InstrInfo::AnalyzeBranch ( MachineBasicBlock &  MBB,
MachineBasicBlock *&  TBB,
MachineBasicBlock *&  FBB,
SmallVectorImpl< MachineOperand > &  Cond,
bool  AllowModify = false 
) const

Definition at line 192 of file AArch64InstrInfo.cpp.

References llvm::MachineBasicBlock::begin(), classifyCondBranch(), llvm::MachineOperand::CreateImm(), llvm::MachineBasicBlock::end(), llvm::MachineInstr::eraseFromParent(), llvm::MachineOperand::getMBB(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), I, isCondBranch(), and llvm::SmallVectorTemplateBase< T, isPodLike< T >::value >::push_back().

void AArch64InstrInfo::copyPhysReg ( MachineBasicBlock &  MBB,
MachineBasicBlock::iterator  I,
DebugLoc  DL,
unsigned  DestReg,
unsigned  SrcReg,
bool  KillSrc 
) const

Definition at line 41 of file AArch64InstrInfo.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), llvm::BuildMI(), llvm::RegState::Define, getSubTarget(), llvm_unreachable, and llvm::A64SysReg::NZCV.

unsigned AArch64InstrInfo::estimateRSStackLimit ( MachineFunction &  MF) const

Look through the instructions in this function and work out the largest the stack frame can be while maintaining the ability to address local slots with no complexities.

Definition at line 486 of file AArch64InstrInfo.cpp.

References llvm::MachineFunction::begin(), llvm::MachineFunction::end(), getAddressConstraints(), I, and MaxOffset.

Referenced by llvm::AArch64FrameLowering::processFunctionBeforeCalleeSavedScan().

bool AArch64InstrInfo::expandPostRAPseudo ( MachineBasicBlock::iterator  MI) const

Definition at line 373 of file AArch64InstrInfo.cpp.

References llvm::MachineInstrBuilder::addOperand(), llvm::BuildMI(), llvm::finalizeBundle(), llvm::MachineInstr::getDebugLoc(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineInstr::getParent(), llvm::A64CC::MI, llvm::MachineInstr::setDesc(), and llvm::AArch64ISD::TLSDESCCALL.

void AArch64InstrInfo::getAddressConstraints ( const MachineInstr &  MI,
int &  AccessScale,
int &  MinOffset,
int &  MaxOffset 
) const

getAddressConstraints - For loads and stores (and PRFMs) taking an immediate offset, this function determines the constraints required for the immediate. It must satisfy:

  • MinOffset <= imm <= MaxOffset
  • imm % OffsetScale == 0

Definition at line 512 of file AArch64InstrInfo.cpp.

References llvm::TargetOpcode::DBG_VALUE, llvm::MachineInstr::getOpcode(), and llvm_unreachable.

Referenced by llvm::AArch64RegisterInfo::eliminateFrameIndex(), and estimateRSStackLimit().

unsigned AArch64InstrInfo::getInstBundleLength ( const MachineInstr &  MI) const

Definition at line 609 of file AArch64InstrInfo.cpp.

References getInstSizeInBytes(), llvm::MachineInstr::getParent(), I, llvm::MachineBasicBlock::instr_end(), and llvm::A64CC::MI.

Referenced by getInstSizeInBytes().

unsigned AArch64InstrInfo::getInstSizeInBytes ( const MachineInstr &  MI) const

Definition at line 578 of file AArch64InstrInfo.cpp.

References llvm::TargetOpcode::BUNDLE, llvm::TargetOpcode::DBG_VALUE, llvm::TargetOpcode::EH_LABEL, llvm::MachineInstr::getDesc(), getInstBundleLength(), llvm::TargetMachine::getMCAsmInfo(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineInstr::getParent(), llvm::MachineBasicBlock::getParent(), llvm::MCInstrDesc::getSize(), llvm::MachineOperand::getSymbolName(), llvm::MachineFunction::getTarget(), llvm::TargetOpcode::IMPLICIT_DEF, llvm::ISD::INLINEASM, llvm::MachineInstr::isLabel(), llvm::TargetOpcode::KILL, llvm_unreachable, llvm::TargetOpcode::PROLOG_LABEL, and llvm::AArch64ISD::TLSDESCCALL.

Referenced by getInstBundleLength().

const TargetRegisterInfo& llvm::AArch64InstrInfo::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 37 of file AArch64InstrInfo.h.

Referenced by llvm::AArch64TargetMachine::getRegisterInfo().

const AArch64Subtarget& llvm::AArch64InstrInfo::getSubTarget ( ) const
inline

Definition at line 39 of file AArch64InstrInfo.h.

Referenced by copyPhysReg().

unsigned AArch64InstrInfo::InsertBranch ( MachineBasicBlock &  MBB,
MachineBasicBlock *  TBB,
MachineBasicBlock *  FBB,
const SmallVectorImpl< MachineOperand > &  Cond,
DebugLoc  DL 
) const

Definition at line 321 of file AArch64InstrInfo.cpp.

References llvm::MachineInstrBuilder::addMBB(), llvm::MachineInstrBuilder::addOperand(), llvm::BuildMI(), llvm::SmallVectorBase::empty(), and llvm::SmallVectorTemplateCommon< T >::size().

void AArch64InstrInfo::loadRegFromStackSlot ( MachineBasicBlock &  MBB,
MachineBasicBlock::iterator  MBBI,
unsigned  DestReg,
int  FrameIdx,
const TargetRegisterClass *  RC,
const TargetRegisterInfo *  TRI 
) const

Definition at line 443 of file AArch64InstrInfo.cpp.

References llvm::MachineInstrBuilder::addFrameIndex(), llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addMemOperand(), Align(), llvm::BuildMI(), llvm::MVT::f128, llvm::MVT::f32, llvm::MVT::f64, llvm::MachineBasicBlock::findDebugLoc(), llvm::MachinePointerInfo::getFixedStack(), llvm::MachineFunction::getFrameInfo(), llvm::MachineFunction::getMachineMemOperand(), llvm::MachineFrameInfo::getObjectAlignment(), llvm::MachineFrameInfo::getObjectSize(), llvm::MachineBasicBlock::getParent(), llvm::TargetRegisterClass::getSize(), llvm::TargetRegisterClass::hasType(), llvm::MVT::i32, llvm::MVT::i64, llvm_unreachable, and llvm::MachineMemOperand::MOLoad.

unsigned AArch64InstrInfo::RemoveBranch ( MachineBasicBlock &  MBB) const

Definition at line 345 of file AArch64InstrInfo.cpp.

References llvm::MachineBasicBlock::begin(), llvm::MachineBasicBlock::end(), I, and isCondBranch().

bool AArch64InstrInfo::ReverseBranchCondition ( SmallVectorImpl< MachineOperand > &  Cond) const

Definition at line 281 of file AArch64InstrInfo.cpp.

References llvm::A64InvertCondCode(), and llvm_unreachable.

void AArch64InstrInfo::storeRegToStackSlot ( MachineBasicBlock &  MBB,
MachineBasicBlock::iterator  MI,
unsigned  SrcReg,
bool  isKill,
int  FrameIndex,
const TargetRegisterClass *  RC,
const TargetRegisterInfo *  TRI 
) const

Definition at line 396 of file AArch64InstrInfo.cpp.

References llvm::MachineInstrBuilder::addFrameIndex(), llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addMemOperand(), llvm::MachineInstrBuilder::addReg(), Align(), llvm::BuildMI(), llvm::MVT::f128, llvm::MVT::f32, llvm::MVT::f64, llvm::MachineBasicBlock::findDebugLoc(), llvm::MachinePointerInfo::getFixedStack(), llvm::MachineFunction::getFrameInfo(), llvm::getKillRegState(), llvm::MachineFunction::getMachineMemOperand(), llvm::MachineFrameInfo::getObjectAlignment(), llvm::MachineFrameInfo::getObjectSize(), llvm::MachineBasicBlock::getParent(), llvm::TargetRegisterClass::getSize(), llvm::TargetRegisterClass::hasType(), llvm::MVT::i32, llvm::MVT::i64, llvm_unreachable, and llvm::MachineMemOperand::MOStore.

The documentation for this class was generated from the following files:

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