#include <ResourcePriorityQueue.h>

Inheritance diagram for llvm::ResourcePriorityQueue:

Collaboration diagram for llvm::ResourcePriorityQueue:

Public Member Functions
	ResourcePriorityQueue (SelectionDAGISel *IS)
	~ResourcePriorityQueue ()
bool	isBottomUp () const
void	initNodes (std::vector< SUnit > &sunits)
void	addNode (const SUnit *SU)
void	updateNode (const SUnit *SU)
void	releaseState ()
unsigned	getLatency (unsigned NodeNum) const
unsigned	getNumSolelyBlockNodes (unsigned NodeNum) const
signed	SUSchedulingCost (SUnit *SU)
void	initNumRegDefsLeft (SUnit *SU)
void	updateNumRegDefsLeft (SUnit *SU)
signed	regPressureDelta (SUnit *SU, bool RawPressure=false)
signed	rawRegPressureDelta (SUnit *SU, unsigned RCId)
bool	empty () const
virtual void	push (SUnit *U)
virtual SUnit *	pop ()
virtual void	remove (SUnit *SU)
virtual void	dump (ScheduleDAG *DAG) const
void	scheduledNode (SUnit *Node)
	scheduledNode - Main resource tracking point.
bool	isResourceAvailable (SUnit *SU)
void	reserveResources (SUnit *SU)
	Keep track of available resources.

Detailed Description

Definition at line 38 of file ResourcePriorityQueue.h.

Constructor & Destructor Documentation

ResourcePriorityQueue::ResourcePriorityQueue ( SelectionDAGISel * IS )

Definition at line 43 of file ResourcePriorityQueue.cpp.

References llvm::TargetInstrInfo::CreateTargetScheduleState(), llvm::TargetMachine::getInstrInfo(), llvm::TargetRegisterInfo::getNumRegClasses(), llvm::TargetMachine::getRegisterInfo(), llvm::TargetRegisterInfo::getRegPressureLimit(), llvm::SelectionDAGISel::getTargetLowering(), llvm::TargetLoweringBase::getTargetMachine(), I, llvm::SelectionDAGISel::MF, llvm::TargetRegisterInfo::regclass_begin(), and llvm::TargetRegisterInfo::regclass_end().

llvm::ResourcePriorityQueue::~ResourcePriorityQueue ( ) [inline]

Definition at line 80 of file ResourcePriorityQueue.h.

Member Function Documentation

void llvm::ResourcePriorityQueue::addNode ( const SUnit * SU ) [inline, virtual]

Implements llvm::SchedulingPriorityQueue.

Definition at line 88 of file ResourcePriorityQueue.h.

void ResourcePriorityQueue::dump ( ScheduleDAG * DAG ) const [virtual]

Reimplemented from llvm::SchedulingPriorityQueue.

Definition at line 647 of file ResourcePriorityQueue.cpp.

References llvm::dbgs(), llvm::SUnit::dump(), empty(), llvm::SUnit::getHeight(), and pop().

bool llvm::ResourcePriorityQueue::empty ( ) const [inline, virtual]

Implements llvm::SchedulingPriorityQueue.

Definition at line 119 of file ResourcePriorityQueue.h.

Referenced by dump(), and pop().

unsigned llvm::ResourcePriorityQueue::getLatency ( unsigned NodeNum ) const [inline]

Definition at line 98 of file ResourcePriorityQueue.h.

Referenced by llvm::resource_sort::operator()().

unsigned llvm::ResourcePriorityQueue::getNumSolelyBlockNodes ( unsigned NodeNum ) const [inline]

Definition at line 103 of file ResourcePriorityQueue.h.

Referenced by llvm::resource_sort::operator()().

void ResourcePriorityQueue::initNodes ( std::vector< SUnit > & sunits ) [virtual]

Initialize nodes.

Implements llvm::SchedulingPriorityQueue.

Definition at line 169 of file ResourcePriorityQueue.cpp.

References initNumRegDefsLeft(), and llvm::SUnit::NodeQueueId.

void ResourcePriorityQueue::initNumRegDefsLeft ( SUnit * SU )

InitNumRegDefsLeft - Determine the # of regs defined by this node.

Definition at line 549 of file ResourcePriorityQueue.cpp.

References llvm::ISD::CopyFromReg, llvm::MCInstrInfo::get(), llvm::SUnit::getNode(), llvm::MCInstrDesc::getNumDefs(), llvm::TargetOpcode::IMPLICIT_DEF, llvm::ISD::INLINEASM, N, and llvm::SUnit::NumRegDefsLeft.

Referenced by initNodes().

bool llvm::ResourcePriorityQueue::isBottomUp ( ) const [inline, virtual]

Implements llvm::SchedulingPriorityQueue.

Definition at line 84 of file ResourcePriorityQueue.h.

bool ResourcePriorityQueue::isResourceAvailable ( SUnit * SU )

Check if scheduling of this SU is possible in the current packet.

Definition at line 247 of file ResourcePriorityQueue.cpp.

References llvm::DFAPacketizer::canReserveResources(), llvm::TargetOpcode::EXTRACT_SUBREG, llvm::MCInstrInfo::get(), llvm::SDNode::getGluedNode(), llvm::SDNode::getMachineOpcode(), llvm::SUnit::getNode(), I, llvm::TargetOpcode::IMPLICIT_DEF, llvm::TargetOpcode::INSERT_SUBREG, llvm::SDNode::isMachineOpcode(), llvm::TargetOpcode::REG_SEQUENCE, and llvm::TargetOpcode::SUBREG_TO_REG.

Referenced by reserveResources(), and SUSchedulingCost().

SUnit * ResourcePriorityQueue::pop ( ) [virtual]

Main access point - returns next instructions to be placed in scheduling sequence.

Implements llvm::SchedulingPriorityQueue.

Definition at line 600 of file ResourcePriorityQueue.cpp.

References DisableDFASched, empty(), I, llvm::next(), llvm::prior(), SUSchedulingCost(), and llvm::swap().

Referenced by dump().

void ResourcePriorityQueue::push ( SUnit * U ) [virtual]

Implements llvm::SchedulingPriorityQueue.

Definition at line 232 of file ResourcePriorityQueue.cpp.

References llvm::SmallVectorTemplateCommon< T, typename >::begin(), llvm::SmallVectorTemplateCommon< T, typename >::end(), I, llvm::SUnit::NodeNum, and llvm::SUnit::Succs.

signed ResourcePriorityQueue::rawRegPressureDelta	(	SUnit *	SU,
		unsigned	RCId
	)

Definition at line 327 of file ResourcePriorityQueue.cpp.

References llvm::TargetRegisterClass::getID(), llvm::SDValue::getNode(), llvm::SUnit::getNode(), llvm::SDNode::getNumOperands(), llvm::SDNode::getNumValues(), llvm::SDNode::getOperand(), llvm::TargetLoweringBase::getRegClassFor(), llvm::SDValue::getResNo(), llvm::SDNode::getSimpleValueType(), llvm::SDNode::isMachineOpcode(), and llvm::TargetLoweringBase::isTypeLegal().

Referenced by regPressureDelta().

signed ResourcePriorityQueue::regPressureDelta	(	SUnit *	SU,
		bool	RawPressure = `false`
	)

Estimates change in reg pressure from this SU. It is achieved by trivial tracking of defined and used vregs in dependent instructions. The RawPressure flag makes this function to ignore existing reg file sizes, and report raw def/use balance.

Definition at line 361 of file ResourcePriorityQueue.cpp.

References llvm::TargetRegisterClass::getID(), llvm::SUnit::getNode(), I, llvm::SDNode::isMachineOpcode(), rawRegPressureDelta(), llvm::TargetRegisterInfo::regclass_begin(), and llvm::TargetRegisterInfo::regclass_end().

Referenced by SUSchedulingCost().

void llvm::ResourcePriorityQueue::releaseState ( ) [inline, virtual]

Implements llvm::SchedulingPriorityQueue.

Definition at line 94 of file ResourcePriorityQueue.h.

void ResourcePriorityQueue::remove ( SUnit * SU ) [virtual]

Implements llvm::SchedulingPriorityQueue.

Definition at line 634 of file ResourcePriorityQueue.cpp.

References I, llvm::prior(), and llvm::swap().

void ResourcePriorityQueue::reserveResources ( SUnit * SU )

Keep track of available resources.