llvm::SystemZRegisterInfo Struct Reference

#include "Target/SystemZ/SystemZRegisterInfo.h"

Inheritance diagram for llvm::SystemZRegisterInfo:

Collaboration diagram for llvm::SystemZRegisterInfo:

Public Member Functions
	SystemZRegisterInfo ()
const TargetRegisterClass *	getPointerRegClass (const MachineFunction &MF, unsigned Kind=0) const override
	getPointerRegClass - Return the register class to use to hold pointers. More...
const TargetRegisterClass *	getCrossCopyRegClass (const TargetRegisterClass *RC) const override
	getCrossCopyRegClass - Returns a legal register class to copy a register in the specified class to or from. More...
bool	getRegAllocationHints (unsigned VirtReg, ArrayRef< MCPhysReg > Order, SmallVectorImpl< MCPhysReg > &Hints, const MachineFunction &MF, const VirtRegMap *VRM, const LiveRegMatrix *Matrix) const override
bool	requiresRegisterScavenging (const MachineFunction &MF) const override
bool	requiresFrameIndexScavenging (const MachineFunction &MF) const override
bool	trackLivenessAfterRegAlloc (const MachineFunction &MF) const override
const MCPhysReg *	getCalleeSavedRegs (const MachineFunction *MF) const override
const uint32_t *	getCallPreservedMask (const MachineFunction &MF, CallingConv::ID CC) const override
BitVector	getReservedRegs (const MachineFunction &MF) const override
void	eliminateFrameIndex (MachineBasicBlock::iterator MI, int SPAdj, unsigned FIOperandNum, RegScavenger *RS) const override
bool	shouldCoalesce (MachineInstr *MI, const TargetRegisterClass *SrcRC, unsigned SubReg, const TargetRegisterClass *DstRC, unsigned DstSubReg, const TargetRegisterClass *NewRC, LiveIntervals &LIS) const override
	SrcRC and DstRC will be morphed into NewRC if this returns true. More...
unsigned	getFrameRegister (const MachineFunction &MF) const override

Detailed Description

Definition at line 34 of file SystemZRegisterInfo.h.

Constructor & Destructor Documentation

SystemZRegisterInfo()

SystemZRegisterInfo::SystemZRegisterInfo

(

)

Definition at line 25 of file SystemZRegisterInfo.cpp.

Member Function Documentation

eliminateFrameIndex()

void SystemZRegisterInfo::eliminateFrameIndex ( MachineBasicBlock::iterator  MI, int  SPAdj, unsigned  FIOperandNum, RegScavenger *  RS  ) const

override

Definition at line 176 of file SystemZRegisterInfo.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), assert(), llvm::BuildMI(), llvm::MachineRegisterInfo::createVirtualRegister(), llvm::ISD::FrameIndex, llvm::TargetFrameLowering::getFrameIndexReference(), llvm::TargetSubtargetInfo::getInstrInfo(), llvm::MachineBasicBlock::getParent(), llvm::MachineFunction::getRegInfo(), llvm::MachineFunction::getSubtarget(), llvm::SystemZII::HasIndex, llvm::SystemZSubtarget::hasVector(), llvm::RegState::Kill, llvm::AArch64CC::LE, llvm::BitmaskEnumDetail::Mask(), and TII.

getCalleeSavedRegs()

const MCPhysReg * SystemZRegisterInfo::getCalleeSavedRegs ( const MachineFunction *  MF ) const

override

Definition at line 123 of file SystemZRegisterInfo.cpp.

References llvm::CallingConv::AnyReg, llvm::Function::getAttributes(), llvm::Function::getCallingConv(), llvm::MachineFunction::getFunction(), llvm::MachineFunction::getSubtarget(), llvm::TargetSubtargetInfo::getTargetLowering(), llvm::AttributeList::hasAttrSomewhere(), llvm::SystemZSubtarget::hasVector(), llvm::TargetLowering::supportSwiftError(), and llvm::Attribute::SwiftError.

getCallPreservedMask()

const uint32_t * SystemZRegisterInfo::getCallPreservedMask ( const MachineFunction &  MF, CallingConv::ID  CC  ) const

override

Definition at line 136 of file SystemZRegisterInfo.cpp.

References llvm::CallingConv::AnyReg, llvm::Function::getAttributes(), llvm::MachineFunction::getFunction(), llvm::MachineFunction::getSubtarget(), llvm::TargetSubtargetInfo::getTargetLowering(), llvm::AttributeList::hasAttrSomewhere(), llvm::SystemZSubtarget::hasVector(), llvm::TargetLowering::supportSwiftError(), and llvm::Attribute::SwiftError.

getCrossCopyRegClass()

const TargetRegisterClass * SystemZRegisterInfo::getCrossCopyRegClass ( const TargetRegisterClass *  RC ) const

override

getCrossCopyRegClass - Returns a legal register class to copy a register in the specified class to or from.

Returns NULL if it is possible to copy between a two registers of the specified class.

Definition at line 338 of file SystemZRegisterInfo.cpp.

getFrameRegister()

unsigned SystemZRegisterInfo::getFrameRegister ( const MachineFunction &  MF ) const

override

Definition at line 332 of file SystemZRegisterInfo.cpp.

References llvm::SystemZFrameLowering::hasFP().

getPointerRegClass()

const TargetRegisterClass* llvm::SystemZRegisterInfo::getPointerRegClass ( const MachineFunction &  MF, unsigned  Kind = 0  ) const

inlineoverride

getPointerRegClass - Return the register class to use to hold pointers.

This is currently only used by LOAD_STACK_GUARD, which requires a non-r0 register, hence ADDR64.

Definition at line 42 of file SystemZRegisterInfo.h.

References Matrix.

getRegAllocationHints()

bool SystemZRegisterInfo::getRegAllocationHints ( unsigned  VirtReg, ArrayRef< MCPhysReg >  Order, SmallVectorImpl< MCPhysReg > &  Hints, const MachineFunction &  MF, const VirtRegMap *  VRM, const LiveRegMatrix *  Matrix  ) const

override

Definition at line 58 of file SystemZRegisterInfo.cpp.

References llvm::SmallVectorTemplateCommon< T, typename >::begin(), llvm::SmallVectorImpl< T >::clear(), llvm::TargetRegisterClass::contains(), llvm::SmallSet< T, N, C >::count(), llvm::SmallVectorTemplateCommon< T, typename >::end(), llvm::TargetRegisterInfo::getCommonSubClass(), getRC32(), llvm::MachineOperand::getReg(), llvm::TargetRegisterInfo::getRegAllocationHints(), llvm::MachineRegisterInfo::getRegClass(), llvm::MachineFunction::getRegInfo(), llvm::TargetSubtargetInfo::getRegisterInfo(), llvm::MachineFunction::getSubtarget(), llvm::SmallSet< T, N, C >::insert(), llvm::MachineRegisterInfo::isReserved(), MRI, llvm::SmallVectorImpl< T >::pop_back_val(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), Reg, llvm::SmallVectorBase::size(), TRI, and llvm::MachineRegisterInfo::use_instructions().

getReservedRegs()

BitVector SystemZRegisterInfo::getReservedRegs ( const MachineFunction &  MF ) const

override

Definition at line 150 of file SystemZRegisterInfo.cpp.

References llvm::SystemZFrameLowering::hasFP(), and llvm::BitVector::set().

requiresFrameIndexScavenging()

bool llvm::SystemZRegisterInfo::requiresFrameIndexScavenging ( const MachineFunction &  MF ) const

inlineoverride

Definition at line 64 of file SystemZRegisterInfo.h.

requiresRegisterScavenging()

bool llvm::SystemZRegisterInfo::requiresRegisterScavenging ( const MachineFunction &  MF ) const

inlineoverride

Definition at line 61 of file SystemZRegisterInfo.h.

shouldCoalesce()

bool SystemZRegisterInfo::shouldCoalesce ( MachineInstr *  MI, const TargetRegisterClass *  SrcRC, unsigned  SubReg, const TargetRegisterClass *  DstRC, unsigned  DstSubReg, const TargetRegisterClass *  NewRC, LiveIntervals &  LIS  ) const

override

SrcRC and DstRC will be morphed into NewRC if this returns true.

Definition at line 260 of file SystemZRegisterInfo.cpp.

References assert(), llvm::LiveRange::beginIndex(), llvm::TargetRegisterClass::contains(), llvm::BitVector::count(), llvm::LiveRange::endIndex(), llvm::LiveIntervals::getInstructionFromIndex(), llvm::LiveIntervals::getInterval(), llvm::TargetRegisterClass::getNumRegs(), llvm::MachineInstr::getOperand(), llvm::MachineInstr::getParent(), llvm::MachineOperand::getReg(), llvm::TargetRegisterClass::hasSuperClassEq(), llvm::MachineInstr::isCopy(), llvm::BitVector::set(), and SI.

trackLivenessAfterRegAlloc()

bool llvm::SystemZRegisterInfo::trackLivenessAfterRegAlloc ( const MachineFunction &  MF ) const

inlineoverride

Definition at line 67 of file SystemZRegisterInfo.h.

References MI, and SubReg.

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

• lib/Target/SystemZ/SystemZRegisterInfo.h
• lib/Target/SystemZ/SystemZRegisterInfo.cpp