llvm::AggressiveAntiDepBreaker Class Reference

Class AggressiveAntiDepBreaker. More...

#include <AggressiveAntiDepBreaker.h>

Inheritance diagram for llvm::AggressiveAntiDepBreaker:

Collaboration diagram for llvm::AggressiveAntiDepBreaker:

Public Member Functions
	AggressiveAntiDepBreaker (MachineFunction &MFi, const RegisterClassInfo &RCI, TargetSubtargetInfo::RegClassVector &CriticalPathRCs)
	~AggressiveAntiDepBreaker ()
void	StartBlock (MachineBasicBlock *BB)
	Start - Initialize anti-dep breaking for a new basic block. More...
unsigned	BreakAntiDependencies (const std::vector< SUnit > &SUnits, MachineBasicBlock::iterator Begin, MachineBasicBlock::iterator End, unsigned InsertPosIndex, DbgValueVector &DbgValues)
void	Observe (MachineInstr *MI, unsigned Count, unsigned InsertPosIndex)
void	FinishBlock ()
	Finish - Finish anti-dep breaking for a basic block. More...
Public Member Functions inherited from llvm::AntiDepBreaker
virtual	~AntiDepBreaker ()
void	UpdateDbgValue (MachineInstr *MI, unsigned OldReg, unsigned NewReg)

Additional Inherited Members
Public Types inherited from llvm::AntiDepBreaker
typedef std::vector< std::pair < MachineInstr *, MachineInstr * > >	DbgValueVector

Detailed Description

Class AggressiveAntiDepBreaker.

Definition at line 117 of file AggressiveAntiDepBreaker.h.

Constructor & Destructor Documentation

AggressiveAntiDepBreaker::AggressiveAntiDepBreaker	(	MachineFunction &	MFi,
		const RegisterClassInfo &	RCI,
		TargetSubtargetInfo::RegClassVector &	CriticalPathRCs
	)

Definition at line 116 of file AggressiveAntiDepBreaker.cpp.

References llvm::dbgs(), DEBUG, llvm::BitVector::find_first(), llvm::BitVector::find_next(), llvm::TargetRegisterInfo::getAllocatableSet(), llvm::MCRegisterInfo::getName(), llvm::BitVector::none(), and llvm::SmallVectorTemplateCommon< T, typename >::size().

AggressiveAntiDepBreaker::~AggressiveAntiDepBreaker

(

)

Definition at line 142 of file AggressiveAntiDepBreaker.cpp.

Member Function Documentation

unsigned AggressiveAntiDepBreaker::BreakAntiDependencies ( const std::vector< SUnit > &  SUnits, MachineBasicBlock::iterator  Begin, MachineBasicBlock::iterator  End, unsigned  InsertPosIndex, DbgValueVector &  DbgValues  )

virtual

BreakAntiDependencies - Identifiy anti-dependencies along the critical path of the ScheduleDAG and break them by renaming registers.

BreakAntiDependencies - Identifiy anti-dependencies within the ScheduleDAG and break them by renaming registers.

Implements llvm::AntiDepBreaker.

Definition at line 697 of file AggressiveAntiDepBreaker.cpp.

References llvm::SDep::Anti, AntiDepEdges(), llvm::BitVector::any(), CriticalPathStep(), llvm::SDep::Data, llvm::dbgs(), DEBUG, llvm::MachineInstr::dump(), llvm::MachineInstr::findRegisterDefOperand(), llvm::AggressiveAntiDepState::GetDefIndices(), llvm::SUnit::getDepth(), llvm::AggressiveAntiDepState::GetGroup(), llvm::SUnit::getInstr(), llvm::AggressiveAntiDepState::GetKillIndices(), llvm::SDep::getKind(), llvm::SDep::getReg(), llvm::AggressiveAntiDepState::GetRegRefs(), llvm::SDep::getSUnit(), I, llvm::MachineRegisterInfo::isAllocatable(), llvm::MachineInstr::isDebugValue(), llvm::MachineOperand::isImplicit(), llvm::MachineInstr::isKill(), llvm::AggressiveAntiDepState::IsLive(), llvm::SUnit::Latency, llvm::A64CC::MI, llvm::AggressiveAntiDepState::RegisterReference::Operand, llvm::SDep::Output, P, llvm::SUnit::Preds, llvm::MachineOperand::setReg(), llvm::BitVector::test(), llvm::AggressiveAntiDepState::UnionGroups(), and llvm::AntiDepBreaker::UpdateDbgValue().

void AggressiveAntiDepBreaker::FinishBlock ( )

virtual

Finish - Finish anti-dep breaking for a basic block.

Implements llvm::AntiDepBreaker.

Definition at line 184 of file AggressiveAntiDepBreaker.cpp.

void AggressiveAntiDepBreaker::Observe ( MachineInstr *  MI, unsigned  Count, unsigned  InsertPosIndex  )

virtual

Observe - Update liveness information to account for the current instruction, which will not be scheduled.

Implements llvm::AntiDepBreaker.

Definition at line 189 of file AggressiveAntiDepBreaker.cpp.

References llvm::dbgs(), DEBUG, llvm::MachineInstr::dump(), llvm::AggressiveAntiDepState::GetDefIndices(), llvm::AggressiveAntiDepState::GetGroup(), llvm::MCRegisterInfo::getName(), llvm::MCRegisterInfo::getNumRegs(), llvm::AggressiveAntiDepState::IsLive(), and llvm::AggressiveAntiDepState::UnionGroups().

void AggressiveAntiDepBreaker::StartBlock ( MachineBasicBlock *  BB )

virtual

Start - Initialize anti-dep breaking for a new basic block.

Implements llvm::AntiDepBreaker.

Definition at line 146 of file AggressiveAntiDepBreaker.cpp.

References llvm::MachineBasicBlock::back(), llvm::MachineBasicBlock::empty(), llvm::TargetRegisterInfo::getCalleeSavedRegs(), llvm::AggressiveAntiDepState::GetDefIndices(), llvm::MachineFunction::getFrameInfo(), llvm::AggressiveAntiDepState::GetKillIndices(), llvm::MCRegisterInfo::getNumRegs(), llvm::MachineFrameInfo::getPristineRegs(), I, llvm::MachineInstr::isReturn(), llvm::MCRegAliasIterator::isValid(), llvm::MachineBasicBlock::size(), llvm::MachineBasicBlock::succ_begin(), llvm::MachineBasicBlock::succ_end(), llvm::BitVector::test(), and llvm::AggressiveAntiDepState::UnionGroups().

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

• AggressiveAntiDepBreaker.h
• AggressiveAntiDepBreaker.cpp