llvm::LiveDebugVariables Class Reference

#include "CodeGen/LiveDebugVariables.h"

Inheritance diagram for llvm::LiveDebugVariables:

Collaboration diagram for llvm::LiveDebugVariables:

Public Member Functions
	LiveDebugVariables ()
	~LiveDebugVariables () override
void	splitRegister (unsigned OldReg, ArrayRef< unsigned > NewRegs, LiveIntervals &LIS)
	splitRegister - Move any user variables in OldReg to the live ranges in NewRegs where they are live. More...
void	emitDebugValues (VirtRegMap *VRM)
	emitDebugValues - Emit new DBG_VALUE instructions reflecting the changes that happened during register allocation. More...
void	dump () const
	dump - Print data structures to dbgs(). More...
Public Member Functions inherited from llvm::FunctionPass
	FunctionPass (char &pid)
Pass *	createPrinterPass (raw_ostream &OS, const std::string &Banner) const override
	createPrinterPass - Get a function printer pass. More...
void	assignPassManager (PMStack &PMS, PassManagerType T) override
	Find appropriate Function Pass Manager or Call Graph Pass Manager in the PM Stack and add self into that manager. More...
PassManagerType	getPotentialPassManagerType () const override
	Return what kind of Pass Manager can manage this pass. More...
Public Member Functions inherited from llvm::Pass
	Pass (PassKind K, char &pid)
	Pass (const Pass &)=delete
Pass &	operator= (const Pass &)=delete
virtual	~Pass ()
PassKind	getPassKind () const
virtual StringRef	getPassName () const
	getPassName - Return a nice clean name for a pass. More...
AnalysisID	getPassID () const
	getPassID - Return the PassID number that corresponds to this pass. More...
virtual bool	doFinalization (Module &)
	doFinalization - Virtual method overriden by subclasses to do any necessary clean up after all passes have run. More...
virtual void	print (raw_ostream &OS, const Module *M) const
	print - Print out the internal state of the pass. More...
void	dump () const
virtual void	preparePassManager (PMStack &)
	Check if available pass managers are suitable for this pass or not. More...
void	setResolver (AnalysisResolver *AR)
AnalysisResolver *	getResolver () const
virtual void *	getAdjustedAnalysisPointer (AnalysisID ID)
	getAdjustedAnalysisPointer - This method is used when a pass implements an analysis interface through multiple inheritance. More...
virtual ImmutablePass *	getAsImmutablePass ()
virtual PMDataManager *	getAsPMDataManager ()
virtual void	verifyAnalysis () const
	verifyAnalysis() - This member can be implemented by a analysis pass to check state of analysis information. More...
virtual void	dumpPassStructure (unsigned Offset=0)
template<typename AnalysisType >
AnalysisType *	getAnalysisIfAvailable () const
	getAnalysisIfAvailable<AnalysisType>() - Subclasses use this function to get analysis information that might be around, for example to update it. More...
bool	mustPreserveAnalysisID (char &AID) const
	mustPreserveAnalysisID - This method serves the same function as getAnalysisIfAvailable, but works if you just have an AnalysisID. More...
template<typename AnalysisType >
AnalysisType &	getAnalysis () const
	getAnalysis<AnalysisType>() - This function is used by subclasses to get to the analysis information that they claim to use by overriding the getAnalysisUsage function. More...
template<typename AnalysisType >
AnalysisType &	getAnalysis (Function &F)
	getAnalysis<AnalysisType>() - This function is used by subclasses to get to the analysis information that they claim to use by overriding the getAnalysisUsage function. More...
template<typename AnalysisType >
AnalysisType &	getAnalysisID (AnalysisID PI) const
template<typename AnalysisType >
AnalysisType &	getAnalysisID (AnalysisID PI, Function &F)

Static Public Attributes
static char	ID = 0

Additional Inherited Members
Static Public Member Functions inherited from llvm::Pass
static const PassInfo *	lookupPassInfo (const void *TI)
static const PassInfo *	lookupPassInfo (StringRef Arg)
static Pass *	createPass (AnalysisID ID)
Protected Member Functions inherited from llvm::MachineFunctionPass
	MachineFunctionPass (char &ID)
virtual MachineFunctionProperties	getRequiredProperties () const
virtual MachineFunctionProperties	getSetProperties () const
virtual MachineFunctionProperties	getClearedProperties () const
Protected Member Functions inherited from llvm::FunctionPass
bool	skipFunction (const Function &F) const
	Optional passes call this function to check whether the pass should be skipped. More...

Detailed Description

Definition at line 33 of file LiveDebugVariables.h.

Constructor & Destructor Documentation

LiveDebugVariables()

LiveDebugVariables::LiveDebugVariables

(

)

Definition at line 91 of file LiveDebugVariables.cpp.

References llvm::PassRegistry::getPassRegistry(), and llvm::initializeLiveDebugVariablesPass().

~LiveDebugVariables()

LiveDebugVariables::~LiveDebugVariables ( )

override

Definition at line 919 of file LiveDebugVariables.cpp.

References llvm::LiveRange::advanceTo(), llvm::IntervalMap< KeyT, ValT, N, Traits >::const_iterator::advanceTo(), assert(), llvm::LiveRange::begin(), llvm::LiveRange::beginIndex(), DbgValueLocation::changeLocNo(), llvm::MachineOperand::CreateReg(), llvm::dbgs(), llvm::LiveRange::empty(), llvm::LiveRange::end(), llvm::IntervalMap< KeyT, ValT, N, Traits >::iterator::erase(), llvm::IntervalMap< KeyT, ValT, N, Traits >::const_iterator::find(), llvm::LiveIntervals::getInterval(), llvm::MachineOperand::getReg(), llvm::IntervalMap< KeyT, ValT, N, Traits >::const_iterator::goToBegin(), llvm::IntervalMap< KeyT, ValT, N, Traits >::iterator::insert(), llvm::MachineOperand::isReg(), DbgValueLocation::isUndef(), LLVM_DEBUG, DbgValueLocation::locNo(), llvm::Pass::print(), llvm::LiveInterval::reg, llvm::IntervalMap< KeyT, ValT, N, Traits >::const_iterator::setMap(), llvm::IntervalMap< KeyT, ValT, N, Traits >::iterator::setStartUnchecked(), llvm::IntervalMap< KeyT, ValT, N, Traits >::iterator::setStopUnchecked(), llvm::MachineOperand::setSubReg(), llvm::IntervalMap< KeyT, ValT, N, Traits >::iterator::setValue(), llvm::IntervalMap< KeyT, ValT, N, Traits >::iterator::setValueUnchecked(), llvm::ArrayRef< T >::size(), splitRegister(), llvm::IntervalMap< KeyT, ValT, N, Traits >::const_iterator::start(), llvm::IntervalMap< KeyT, ValT, N, Traits >::const_iterator::stop(), UndefLocNo, llvm::IntervalMap< KeyT, ValT, N, Traits >::const_iterator::valid(), and llvm::IntervalMap< KeyT, ValT, N, Traits >::const_iterator::value().

Member Function Documentation

dump()

LLVM_DUMP_METHOD void LiveDebugVariables::dump

(

)

const

dump - Print data structures to dbgs().

Definition at line 1322 of file LiveDebugVariables.cpp.

References llvm::dbgs(), and llvm::Pass::print().

emitDebugValues()

void LiveDebugVariables::emitDebugValues

(

VirtRegMap *

VRM

)

emitDebugValues - Emit new DBG_VALUE instructions reflecting the changes that happened during register allocation.

Parameters

VRM	Rename virtual registers according to map.

Definition at line 1312 of file LiveDebugVariables.cpp.

References llvm::Pass::doInitialization().

splitRegister()

void LiveDebugVariables::splitRegister	(	unsigned	OldReg,
		ArrayRef< unsigned >	NewRegs,
		LiveIntervals &	LIS
	)

splitRegister - Move any user variables in OldReg to the live ranges in NewRegs where they are live.

Mark the values as unavailable where no new register is live.

Definition at line 1064 of file LiveDebugVariables.cpp.

References llvm::MapVector< KeyT, ValueT, MapType, VectorType >::begin(), DbgValueLocation::changeLocNo(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::clear(), llvm::MachineOperand::CreateFI(), E, llvm::VirtRegMap::getPhys(), llvm::MachineOperand::getReg(), llvm::MachineRegisterInfo::getRegClass(), llvm::MachineFunction::getRegInfo(), llvm::VirtRegMap::getStackSlot(), llvm::TargetInstrInfo::getStackSlotRange(), llvm::MachineOperand::getSubReg(), I, llvm::MapVector< KeyT, ValueT, MapType, VectorType >::insert(), llvm::VirtRegMap::isAssignedReg(), llvm::TargetRegisterInfo::isPhysicalRegister(), llvm::MachineOperand::isReg(), DbgValueLocation::isUndef(), llvm::TargetRegisterInfo::isVirtualRegister(), DbgValueLocation::locNo(), llvm::VirtRegMap::NO_STACK_SLOT, llvm::MachineOperand::setReg(), llvm::MachineOperand::setSubReg(), llvm::MachineOperand::substPhysReg(), Success, TII, and TRI.

Referenced by getNumAllocatableRegsForConstraints(), and ~LiveDebugVariables().

Member Data Documentation

ID

char LiveDebugVariables::ID = 0

static

Definition at line 37 of file LiveDebugVariables.h.

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

• lib/CodeGen/LiveDebugVariables.h
• lib/CodeGen/LiveDebugVariables.cpp