llvm::MipsRegisterInfo Class Reference

#include "Target/Mips/MipsRegisterInfo.h"

Inheritance diagram for llvm::MipsRegisterInfo:

Collaboration diagram for llvm::MipsRegisterInfo:

Public Types
enum class	MipsPtrClass { Default = 0 , GPR16MM = 1 , StackPointer = 2 , GlobalPointer = 3 }

Public Member Functions
	MipsRegisterInfo ()
const TargetRegisterClass *	getPointerRegClass (const MachineFunction &MF, unsigned Kind) const override
	Code Generation virtual methods...
unsigned	getRegPressureLimit (const TargetRegisterClass *RC, MachineFunction &MF) const override
const MCPhysReg *	getCalleeSavedRegs (const MachineFunction *MF) const override
	Mips Callee Saved Registers.
const uint32_t *	getCallPreservedMask (const MachineFunction &MF, CallingConv::ID) const override
BitVector	getReservedRegs (const MachineFunction &MF) const override
bool	requiresRegisterScavenging (const MachineFunction &MF) const override
bool	eliminateFrameIndex (MachineBasicBlock::iterator II, int SPAdj, unsigned FIOperandNum, RegScavenger *RS=nullptr) const override
	Stack Frame Processing Methods.
bool	canRealignStack (const MachineFunction &MF) const override
Register	getFrameRegister (const MachineFunction &MF) const override
	Debug information queries.
virtual const TargetRegisterClass *	intRegClass (unsigned Size) const =0
	Return GPR register class.

Static Public Member Functions
static unsigned	getPICCallReg ()
	Get PIC indirect call register.
static const uint32_t *	getMips16RetHelperMask ()

Detailed Description

Definition at line 27 of file MipsRegisterInfo.h.

Member Enumeration Documentation

MipsPtrClass

enum class llvm::MipsRegisterInfo::MipsPtrClass

strong

Enumerator
Default	The default register class for integer values.
GPR16MM	The subset of registers permitted in certain microMIPS instructions such as lw16.
StackPointer	The stack pointer only.
GlobalPointer	The global pointer only.

Definition at line 29 of file MipsRegisterInfo.h.

Constructor & Destructor Documentation

MipsRegisterInfo()

MipsRegisterInfo::MipsRegisterInfo

(

)

Definition at line 42 of file MipsRegisterInfo.cpp.

Member Function Documentation

canRealignStack()

bool MipsRegisterInfo::canRealignStack ( const MachineFunction &  MF ) const

override

Definition at line 289 of file MipsRegisterInfo.cpp.

References llvm::TargetRegisterInfo::canRealignStack(), llvm::MachineRegisterInfo::canReserveReg(), FP, llvm::MipsSubtarget::getFrameLowering(), llvm::MachineFunction::getRegInfo(), llvm::MachineFunction::getSubtarget(), llvm::TargetFrameLowering::hasReservedCallFrame(), llvm::MipsSubtarget::inMips16Mode(), and llvm::MipsSubtarget::isGP32bit().

eliminateFrameIndex()

bool MipsRegisterInfo::eliminateFrameIndex ( MachineBasicBlock::iterator  II, int  SPAdj, unsigned  FIOperandNum, RegScavenger *  RS = nullptr  ) const

override

Stack Frame Processing Methods.

Definition at line 250 of file MipsRegisterInfo.cpp.

References llvm::DebugStr(), llvm::errs(), llvm::MachineFunction::getFrameInfo(), llvm::MachineFunction::getName(), llvm::MachineFrameInfo::getObjectAlign(), llvm::MachineFrameInfo::getObjectOffset(), llvm::MachineFrameInfo::getStackSize(), LLVM_DEBUG, and MI.

getCalleeSavedRegs()

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

override

Mips Callee Saved Registers.

Definition at line 93 of file MipsRegisterInfo.cpp.

References F, llvm::MachineFunction::getFunction(), llvm::MachineFunction::getSubtarget(), llvm::MipsSubtarget::hasMips32r6(), llvm::MipsSubtarget::hasMips64(), llvm::MipsSubtarget::hasMips64r6(), llvm::MipsSubtarget::isABI_N32(), llvm::MipsSubtarget::isABI_N64(), llvm::MipsSubtarget::isFP64bit(), llvm::MipsSubtarget::isFPXX(), and llvm::MipsSubtarget::isSingleFloat().

getCallPreservedMask()

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

override

Definition at line 124 of file MipsRegisterInfo.cpp.

References llvm::MachineFunction::getSubtarget(), llvm::MipsSubtarget::isABI_N32(), llvm::MipsSubtarget::isABI_N64(), llvm::MipsSubtarget::isFP64bit(), llvm::MipsSubtarget::isFPXX(), and llvm::MipsSubtarget::isSingleFloat().

getFrameRegister()

Register MipsRegisterInfo::getFrameRegister ( const MachineFunction &  MF ) const

override

Debug information queries.

Definition at line 275 of file MipsRegisterInfo.cpp.

References llvm::MipsSubtarget::getFrameLowering(), llvm::MachineFunction::getSubtarget(), llvm::MachineFunction::getTarget(), and llvm::MipsSubtarget::inMips16Mode().

getMips16RetHelperMask()

const uint32_t * MipsRegisterInfo::getMips16RetHelperMask ( )

static

Definition at line 145 of file MipsRegisterInfo.cpp.

Referenced by llvm::MipsTargetLowering::getOpndList().

getPICCallReg()

unsigned MipsRegisterInfo::getPICCallReg ( )

static

Get PIC indirect call register.

Definition at line 44 of file MipsRegisterInfo.cpp.

getPointerRegClass()

const TargetRegisterClass * MipsRegisterInfo::getPointerRegClass ( const MachineFunction &  MF, unsigned  Kind  ) const

override

Code Generation virtual methods...

Definition at line 47 of file MipsRegisterInfo.cpp.

References Default, llvm::MachineFunction::getSubtarget(), GlobalPointer, GPR16MM, llvm_unreachable, and StackPointer.

getRegPressureLimit()

unsigned MipsRegisterInfo::getRegPressureLimit ( const TargetRegisterClass *  RC, MachineFunction &  MF  ) const

override

Definition at line 67 of file MipsRegisterInfo.cpp.

References llvm::TargetSubtargetInfo::getFrameLowering(), llvm::TargetRegisterClass::getID(), llvm::MachineFunction::getSubtarget(), and llvm::TargetFrameLowering::hasFP().

getReservedRegs()

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

override

Definition at line 149 of file MipsRegisterInfo.cpp.

References llvm::MachineFunction::getFrameInfo(), llvm::MipsSubtarget::getFrameLowering(), llvm::MachineFunction::getFunction(), llvm::MachineFunction::getInfo(), llvm::MachineFunction::getSubtarget(), llvm::Function::hasFnAttribute(), llvm::TargetFrameLowering::hasFP(), llvm::MipsFunctionInfo::hasSaveS2(), llvm::MachineFrameInfo::hasVarSizedObjects(), llvm::MipsSubtarget::inMips16Mode(), llvm::MipsSubtarget::isABICalls(), llvm::MipsSubtarget::isFP64bit(), llvm::MipsSubtarget::isTargetNaCl(), llvm::Reserved, and llvm::MipsSubtarget::useSmallSection().

Referenced by llvm::Mips16FrameLowering::determineCalleeSaves(), llvm::Mips16InstrInfo::makeFrame(), and llvm::Mips16InstrInfo::restoreFrame().

intRegClass()

virtual const TargetRegisterClass * llvm::MipsRegisterInfo::intRegClass ( unsigned  Size ) const

pure virtual

Return GPR register class.

Implemented in llvm::Mips16RegisterInfo, and llvm::MipsSERegisterInfo.

requiresRegisterScavenging()

bool MipsRegisterInfo::requiresRegisterScavenging ( const MachineFunction &  MF ) const

override

Definition at line 243 of file MipsRegisterInfo.cpp.

---

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

• lib/Target/Mips/MipsRegisterInfo.h
• lib/Target/Mips/MipsRegisterInfo.cpp