llvm::TargetRegisterClass Class Reference

#include <TargetRegisterInfo.h>

Collaboration diagram for llvm::TargetRegisterClass:

[legend]

List of all members.

Public Types
typedef const unsigned *	iterator
typedef const unsigned *	const_iterator
typedef const MVT *	vt_iterator
typedef const TargetRegisterClass *const *	sc_iterator
Public Member Functions
	TargetRegisterClass (unsigned id, const MVT *vts, const TargetRegisterClass *const *subcs, const TargetRegisterClass *const *supcs, unsigned RS, unsigned Al, int CC, iterator RB, iterator RE)
virtual	~TargetRegisterClass ()
unsigned	getID () const
iterator	begin () const
iterator	end () const
unsigned	getNumRegs () const
unsigned	getRegister (unsigned i) const
bool	contains (unsigned Reg) const
bool	hasType (MVT vt) const
vt_iterator	vt_begin () const
vt_iterator	vt_end () const
bool	hasSubClass (const TargetRegisterClass *cs) const
sc_iterator	subclasses_begin () const
sc_iterator	subclasses_end () const
bool	hasSuperClass (const TargetRegisterClass *cs) const
sc_iterator	superclasses_begin () const
sc_iterator	superclasses_end () const
bool	isASubClass () const
virtual iterator	allocation_order_begin (const MachineFunction &MF) const
virtual iterator	allocation_order_end (const MachineFunction &MF) const
unsigned	getSize () const
unsigned	getAlignment () const
int	getCopyCost () const

---

Detailed Description

Definition at line 50 of file TargetRegisterInfo.h.

---

Member Typedef Documentation

typedef const unsigned* llvm::TargetRegisterClass::iterator

Definition at line 52 of file TargetRegisterInfo.h.

typedef const unsigned* llvm::TargetRegisterClass::const_iterator

Definition at line 53 of file TargetRegisterInfo.h.

typedef const MVT* llvm::TargetRegisterClass::vt_iterator

Definition at line 55 of file TargetRegisterInfo.h.

typedef const TargetRegisterClass* const* llvm::TargetRegisterClass::sc_iterator

Definition at line 56 of file TargetRegisterInfo.h.

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Constructor & Destructor Documentation

llvm::TargetRegisterClass::TargetRegisterClass	(	unsigned	id,
		const MVT *	vts,
		const TargetRegisterClass *const *	subcs,
		const TargetRegisterClass *const *	supcs,
		unsigned	RS,
		unsigned	Al,
		int	CC,
		iterator	RB,
		iterator	RE
	)			[inline]

Definition at line 67 of file TargetRegisterInfo.h.

virtual llvm::TargetRegisterClass::~TargetRegisterClass

(

)

[inline, virtual]

Definition at line 75 of file TargetRegisterInfo.h.

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Member Function Documentation

unsigned llvm::TargetRegisterClass::getID

(

)

const [inline]

getID() - Return the register class ID number.

Definition at line 79 of file TargetRegisterInfo.h.

Referenced by llvm::MachineRegisterInfo::createVirtualRegister(), llvm::MachineRegisterInfo::getRegClassVirtRegs(), and llvm::MachineRegisterInfo::setRegClass().

iterator llvm::TargetRegisterClass::begin

(

)

const [inline]

begin/end - Return all of the registers in this class.

Definition at line 83 of file TargetRegisterInfo.h.

Referenced by allocation_order_begin(), contains(), CreateRegClassMask(), findSuperReg(), and llvm::TargetLowering::getRegForInlineAsmConstraint().

iterator llvm::TargetRegisterClass::end

(

)

const [inline]

Definition at line 84 of file TargetRegisterInfo.h.

Referenced by allocation_order_end(), contains(), CreateRegClassMask(), findSuperReg(), and llvm::TargetLowering::getRegForInlineAsmConstraint().

unsigned llvm::TargetRegisterClass::getNumRegs

(

)

const [inline]

getNumRegs - Return the number of registers in this class.

Definition at line 88 of file TargetRegisterInfo.h.

Referenced by getRegister().

unsigned llvm::TargetRegisterClass::getRegister

(

unsigned

i

)

const [inline]

getRegister - Return the specified register in the class.

Definition at line 92 of file TargetRegisterInfo.h.

References getNumRegs().

bool llvm::TargetRegisterClass::contains

(

unsigned

Reg

)

const [inline]

contains - Return true if the specified register is included in this register class.

Definition at line 99 of file TargetRegisterInfo.h.

References begin(), E, and end().

Referenced by AddLiveIn(), getMatchingSuperReg(), and llvm::TargetRegisterInfo::getPhysicalRegisterRegClass().

bool llvm::TargetRegisterClass::hasType

(

MVT

vt

)

const [inline]

hasType - return true if this TargetRegisterClass has the ValueType vt.

Definition at line 107 of file TargetRegisterInfo.h.

References llvm::MVT::Other.

Referenced by llvm::TargetRegisterInfo::getPhysicalRegisterRegClass().

vt_iterator llvm::TargetRegisterClass::vt_begin

(

)

const [inline]

vt_begin / vt_end - Loop over all of the value types that can be represented by values in this register class.

Definition at line 116 of file TargetRegisterInfo.h.

Referenced by llvm::TargetLowering::getRegForInlineAsmConstraint(), llvm::SelectionDAGLowering::GetRegistersForValue(), isAllocatableRegister(), and llvm::X86InstrInfo::unfoldMemoryOperand().

vt_iterator llvm::TargetRegisterClass::vt_end

(

)

const [inline]

Definition at line 120 of file TargetRegisterInfo.h.

References llvm::MVT::Other.

Referenced by llvm::TargetLowering::getRegForInlineAsmConstraint(), and isAllocatableRegister().

bool llvm::TargetRegisterClass::hasSubClass

(

const TargetRegisterClass *

cs

)

const [inline]

hasSubClass - return true if the specified TargetRegisterClass is a sub-register class of this TargetRegisterClass.

Definition at line 128 of file TargetRegisterInfo.h.

sc_iterator llvm::TargetRegisterClass::subclasses_begin

(

)

const [inline]

subclasses_begin / subclasses_end - Loop over all of the sub-classes of this register class.

Definition at line 137 of file TargetRegisterInfo.h.

sc_iterator llvm::TargetRegisterClass::subclasses_end

(

)

const [inline]

Definition at line 141 of file TargetRegisterInfo.h.

bool llvm::TargetRegisterClass::hasSuperClass

(

const TargetRegisterClass *

cs

)

const [inline]

hasSuperClass - return true if the specified TargetRegisterClass is a super-register class of this TargetRegisterClass.

Definition at line 149 of file TargetRegisterInfo.h.

Referenced by llvm::TargetRegisterInfo::getPhysicalRegisterRegClass().

sc_iterator llvm::TargetRegisterClass::superclasses_begin

(

)

const [inline]

superclasses_begin / superclasses_end - Loop over all of the super-classes of this register class.

Definition at line 158 of file TargetRegisterInfo.h.

sc_iterator llvm::TargetRegisterClass::superclasses_end

(

)

const [inline]

Definition at line 162 of file TargetRegisterInfo.h.

bool llvm::TargetRegisterClass::isASubClass

(

)

const [inline]

isASubClass - return true if this TargetRegisterClass is a sub-class of at least one other TargetRegisterClass.

Definition at line 170 of file TargetRegisterInfo.h.

virtual iterator llvm::TargetRegisterClass::allocation_order_begin

(

const MachineFunction &

MF

)

const [inline, virtual]

allocation_order_begin/end - These methods define a range of registers which specify the registers in this class that are valid to register allocate, and the preferred order to allocate them in. For example, callee saved registers should be at the end of the list, because it is cheaper to allocate caller saved registers.

These methods take a MachineFunction argument, which can be used to tune the allocatable registers based on the characteristics of the function. One simple example is that the frame pointer register can be used if frame-pointer-elimination is performed.

By default, these methods return all registers in the class.

Definition at line 187 of file TargetRegisterInfo.h.

References begin().

Referenced by getAllocatableSetForRC(), and isAllocatableRegister().

virtual iterator llvm::TargetRegisterClass::allocation_order_end

(

const MachineFunction &

MF

)

const [inline, virtual]

Definition at line 190 of file TargetRegisterInfo.h.

References end().

Referenced by getAllocatableSetForRC(), and isAllocatableRegister().

unsigned llvm::TargetRegisterClass::getSize

(

)

const [inline]

getSize - Return the size of the register in bytes, which is also the size of a stack slot allocated to hold a spilled copy of this register.

Definition at line 198 of file TargetRegisterInfo.h.

Referenced by llvm::VirtRegMap::assignVirt2StackSlot(), llvm::VirtRegMap::getEmergencySpillSlot(), llvm::XCoreRegisterInfo::processFunctionBeforeCalleeSavedScan(), llvm::PPCRegisterInfo::processFunctionBeforeCalleeSavedScan(), and llvm::ARMRegisterInfo::processFunctionBeforeCalleeSavedScan().

unsigned llvm::TargetRegisterClass::getAlignment

(

)

const [inline]

getAlignment - Return the minimum required alignment for a register of this class.

Definition at line 202 of file TargetRegisterInfo.h.

Referenced by llvm::VirtRegMap::assignVirt2StackSlot(), llvm::VirtRegMap::getEmergencySpillSlot(), llvm::XCoreRegisterInfo::processFunctionBeforeCalleeSavedScan(), llvm::PPCRegisterInfo::processFunctionBeforeCalleeSavedScan(), and llvm::ARMRegisterInfo::processFunctionBeforeCalleeSavedScan().

int llvm::TargetRegisterClass::getCopyCost

(

)

const [inline]

getCopyCost - Return the cost of copying a value between two registers in this class.

Definition at line 206 of file TargetRegisterInfo.h.

Referenced by CheckForPhysRegDependency().

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

• TargetRegisterInfo.h