llvm::LiveDebugVariables Class Reference

#include "llvm/CodeGen/LiveDebugVariables.h"

Classes
class	LDVImpl

Public Member Functions
LLVM_ABI	LiveDebugVariables ()
	Implementation of the LiveDebugVariables pass.
LLVM_ABI	~LiveDebugVariables ()
LLVM_ABI	LiveDebugVariables (LiveDebugVariables &&)
LLVM_ABI void	analyze (MachineFunction &MF, LiveIntervals *LIS)
LLVM_ABI void	splitRegister (Register OldReg, ArrayRef< Register > NewRegs, LiveIntervals &LIS)
	splitRegister - Move any user variables in OldReg to the live ranges in NewRegs where they are live.
LLVM_ABI void	canonicalizeIndexes (const SlotIndexes &SI)
	canonicalizeIndexes - Replace every SlotIndex held by this analysis that refers to an erased instruction.
LLVM_ABI void	emitDebugValues (VirtRegMap *VRM)
	emitDebugValues - Emit new DBG_VALUE instructions reflecting the changes that happened during register allocation.
void	dump () const
	dump - Print data structures to dbgs().
LLVM_ABI void	print (raw_ostream &OS) const
LLVM_ABI void	releaseMemory ()
LLVM_ABI bool	invalidate (MachineFunction &MF, const PreservedAnalyses &PA, MachineFunctionAnalysisManager::Invalidator &Inv)

Detailed Description

Definition at line 36 of file LiveDebugVariables.h.

Constructor & Destructor Documentation

LiveDebugVariables() [1/2]

llvm::LiveDebugVariables::LiveDebugVariables ( )

default

Implementation of the LiveDebugVariables pass.

References LLVM_ABI.

Referenced by LiveDebugVariables().

~LiveDebugVariables()

llvm::LiveDebugVariables::~LiveDebugVariables ( )

default

References LLVM_ABI.

LiveDebugVariables() [2/2]

llvm::LiveDebugVariables::LiveDebugVariables ( LiveDebugVariables && )

default

References LiveDebugVariables(), and LLVM_ABI.

Member Function Documentation

analyze()

void LiveDebugVariables::analyze	(	MachineFunction &	MF,
		LiveIntervals *	LIS )

Definition at line 1369 of file LiveDebugVariables.cpp.

References EnableLDV, llvm::MachineFunction::getFunction(), llvm::Function::getSubprogram(), removeDebugInstrs(), and llvm::MachineFunction::useDebugInstrRef().

canonicalizeIndexes()

void LiveDebugVariables::canonicalizeIndexes

(

const SlotIndexes &

SI

)

canonicalizeIndexes - Replace every SlotIndex held by this analysis that refers to an erased instruction.

Described locations do not change, as a stale index already resolves to the same position at the point of use, but intervals resolving to one position now emit a single DBG_VALUE rather than identical consecutive ones.

Definition at line 1684 of file LiveDebugVariables.cpp.

Referenced by llvm::LiveDebugVariables::LDVImpl::emitDebugValues().

dump()

LLVM_DUMP_METHOD void LiveDebugVariables::dump

(

)

const

dump - Print data structures to dbgs().

Definition at line 2145 of file LiveDebugVariables.cpp.

References llvm::dbgs(), LLVM_DUMP_METHOD, and 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 2139 of file LiveDebugVariables.cpp.

invalidate()

bool LiveDebugVariables::invalidate	(	MachineFunction &	MF,
		const PreservedAnalyses &	PA,
		MachineFunctionAnalysisManager::Invalidator &	Inv )

Definition at line 1359 of file LiveDebugVariables.cpp.

References llvm::PreservedAnalyses::getChecker().

print()

void LiveDebugVariables::print

(

raw_ostream &

OS

)

const

Definition at line 2148 of file LiveDebugVariables.cpp.

Referenced by dump(), and llvm::LiveDebugVariables::LDVImpl::runOnMachineFunction().

releaseMemory()

void LiveDebugVariables::releaseMemory

(

)

Definition at line 1354 of file LiveDebugVariables.cpp.

splitRegister()

void LiveDebugVariables::splitRegister	(	Register	OldReg,
		ArrayRef< Register >	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 1564 of file LiveDebugVariables.cpp.

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

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