#include <BFShareOperandWithScheduled.hh>

Inheritance diagram for BFShareOperandWithScheduled:

Collaboration diagram for BFShareOperandWithScheduled:

Public Member Functions
	BFShareOperandWithScheduled (BF2Scheduler &sched, MoveNode &removed, MoveNode &scheduled)

virtual bool	operator() ()

virtual	~BFShareOperandWithScheduled ()

Public Member Functions inherited from BFShareOperand
	BFShareOperand (BF2Scheduler &sched, MoveNode &removed, MoveNode &shared)

virtual	~BFShareOperand ()

Public Member Functions inherited from BFOptimization
	BFOptimization (BF2Scheduler &sched)

virtual bool	isFinishFront ()

virtual void	mightBeReady (MoveNode &mn)

Public Member Functions inherited from Reversible
virtual void	undo ()

virtual	~Reversible ()

void	deleteChildren (std::stack< Reversible * > &children)

int	id ()

	Reversible ()

Protected Member Functions
virtual void	undoOnlyMe ()

Protected Member Functions inherited from BFOptimization
DataDependenceGraph &	ddg ()

DataDependenceGraph *	rootDDG ()

const DataDependenceGraph &	ddg () const

DataDependenceGraph *	prologDDG ()

SimpleResourceManager &	rm () const

SimpleResourceManager *	prologRM () const

BUMoveNodeSelector &	selector ()

const TTAMachine::Machine &	targetMachine () const

unsigned int	ii () const

MoveNodeDuplicator &	duplicator () const

virtual bool	assign (int cycle, MoveNode &, const TTAMachine::Bus bus=nullptr, const TTAMachine::FunctionUnit srcFU_=nullptr, const TTAMachine::FunctionUnit dstFU=nullptr, const TTAMachine::Bus prologBus=nullptr, int immWriteCycle=-1, int prologImmWriteCycle=-1, const TTAMachine::ImmediateUnit *immu=nullptr, int immRegIndex=-1, bool ignoreGuardWriteCycle=false)

virtual void	unassign (MoveNode &mn, bool disposePrologCopy=true)

virtual int	rmEC (int cycle, MoveNode &mn, const TTAMachine::Bus bus=nullptr, const TTAMachine::FunctionUnit srcFU=nullptr, const TTAMachine::FunctionUnit dstFU=nullptr, const TTAMachine::Bus prologBus=nullptr, int immWriteCycle=-1, int prologImmWriteCycle=-1, const TTAMachine::ImmediateUnit *immu=nullptr, int immRegIndex=-1)

virtual int	rmLC (int cycle, MoveNode &mn, const TTAMachine::Bus bus=nullptr, const TTAMachine::FunctionUnit srcFU=nullptr, const TTAMachine::FunctionUnit dstFU=nullptr, const TTAMachine::Bus prologBus=nullptr, int immWriteCycle=-1, int prologImmWriteCycle=-1, const TTAMachine::ImmediateUnit *immu=nullptr, int immRegIndex=-1)

virtual bool	canAssign (int cycle, MoveNode &mn, const TTAMachine::Bus bus=nullptr, const TTAMachine::FunctionUnit srcFU=nullptr, const TTAMachine::FunctionUnit dstFU=nullptr, const TTAMachine::Bus prologBus=nullptr, int immWriteCycle=-1, int prologImmWriteCycle=-1, const TTAMachine::ImmediateUnit *immu=nullptr, int immRegIndex=-1, bool ignoreGWN=false)

bool	putAlsoToPrologEpilog (int cycle, MoveNode &mn)

void	setPrologSrcFUAnno (MoveNode &prologMN, MoveNode &loopMN)

void	setPrologDstFUAnno (MoveNode &prologMN, MoveNode &loopMN)

void	setJumpGuard (MoveNode &mn)

void	unsetJumpGuard (MoveNode &mn)

bool	needJumpGuard (const MoveNode &mn, int cycle)

int	jumpGuardAvailableCycle (const MoveNode &mn)

bool	canBeSpeculated (const Operation &op)

bool	canBeSpeculated (const MoveNode &mn)

bool	usePrologMove (const MoveNode &mn)

bool	canBeScheduled (const MoveNode &mn)

const TTAMachine::RegisterFile *	RFReadPortCountPreventsScheduling (const MoveNode &mn)

bool	immCountPreventsScheduling (const MoveNode &mn)

Protected Member Functions inherited from Reversible
bool	runPreChild (Reversible *preChild)

bool	runPostChild (Reversible *preChild)

bool	runChild (std::stack< Reversible * > &children, Reversible *child)

bool	runChild (Reversible *child, bool pre)

void	undoAndRemovePreChildren ()

void	undoAndRemovePostChildren ()

void	undoAndRemoveChildren (std::stack< Reversible * > &children)

Protected Attributes
int	originalCycle_

const TTAMachine::Bus *	originalRemovedBus_

const TTAMachine::Bus *	prologBus_

int	oldImmWriteCycle_

int	prologImmWriteCycle_

const TTAMachine::ImmediateUnit *	immu_

int	immRegIndex_

Protected Attributes inherited from BFShareOperand
MoveNode &	removed_

MoveNode &	shared_

std::vector< ProgramOperationPtr >	ops_

std::set< ProgramOperationPtr >	createdPrologPOs_

Protected Attributes inherited from BFOptimization
BF2Scheduler &	sched_

Protected Attributes inherited from Reversible
std::stack< Reversible * >	preChildren_

std::stack< Reversible * >	postChildren_

Additional Inherited Members
Static Public Member Functions inherited from BFOptimization
static void	clearPrologMoves ()

static MoveNode *	getSisterTrigger (const MoveNode &mn, const TTAMachine::Machine &mach)

Static Protected Attributes inherited from BFOptimization
static std::map< MoveNode , MoveNode , MoveNode::Comparator >	prologMoves_

Detailed Description

Definition at line 44 of file BFShareOperandWithScheduled.hh.

Constructor & Destructor Documentation

◆ BFShareOperandWithScheduled()

BFShareOperandWithScheduled::BFShareOperandWithScheduled	(	BF2Scheduler &	sched,
		MoveNode &	removed,
		MoveNode &	scheduled
	)

inline

Definition at line 46 of file BFShareOperandWithScheduled.hh.

                                    :
        BFShareOperand(sched, removed, scheduled), originalCycle_(-1),
        originalRemovedBus_(NULL), prologBus_(NULL), oldImmWriteCycle_(-1),
        prologImmWriteCycle_(-1), immu_(NULL), immRegIndex_(-1)
    {}

◆ ~BFShareOperandWithScheduled()

virtual BFShareOperandWithScheduled::~BFShareOperandWithScheduled ( )

inlinevirtual

Definition at line 53 of file BFShareOperandWithScheduled.hh.

53{}

Member Function Documentation

◆ operator()()

bool BFShareOperandWithScheduled::operator() ( )

virtual

This performs the operation. Returns true if success, false if fail.

Reimplemented from BFShareOperand.

Definition at line 48 of file BFShareOperandWithScheduled.cc.

                                             {
    if (removed_.move().destination().operationIndex() !=
        shared_.move().destination().operationIndex()) {
#ifdef DEBUG_BUBBLEFISH_SCHEDULER
        std::cerr << "\t\t\t\t\tDestination operand index mismatch"
                  << std::endl;
#endif
        return false;
    }
 
    originalRemovedBus_ = &removed_.move().bus();
    originalCycle_ = removed_.cycle();
 
    if (removed_.move().source().isImmediateRegister()) {
        oldImmWriteCycle_ = rm().immediateWriteCycle(removed_);
        immRegIndex_ = removed_.move().source().index();
        immu_ = &removed_.move().source().immediateUnit();
    }
 
    MoveNode* removedPrologMN = ii() ?
        duplicator().getMoveNode(removed_) :
        NULL;
    if (removedPrologMN != NULL) {
        prologBus_ = &removedPrologMN->move().bus();
 
    if (removedPrologMN->move().source().isImmediateRegister()) {
        prologImmWriteCycle_ =
            prologRM()->immediateWriteCycle(*removedPrologMN);
    }
 
#ifdef DEBUG_BUBBLEFISH_SCHEDULER
        std::cerr << "\t\t\t\tShareOpWithSched Saving prolog bus: "
                  << prologBus_->name() << std::endl;
        std::cerr << "\t\t\t\t\tProlog move: " << removedPrologMN->toString()
                  << std::endl;
#endif
    }
 
    unassign(removed_, false);
    if (BFShareOperand::operator()()) {
        ddg().dropNode(removed_);
        sched_.nodeAndCopyKilled(removed_);
#ifdef DEBUG_BUBBLEFISH_SCHEDULER
        std::cerr << "\t\t\t\t\tShared operand ok!" << std::endl;
#endif
        return true;
    } else {
        sched_.nodeResurrected(removed_);
        ddg().restoreNodeFromParent(removed_);
        assign(originalCycle_, removed_, originalRemovedBus_);
#ifdef DEBUG_BUBBLEFISH_SCHEDULER
        std::cerr << "\t\t\t\t\tShare operand failed!" << std::endl;
#endif
        return false;
    }
}

References BFOptimization::assign(), TTAProgram::Move::bus(), MoveNode::cycle(), BFOptimization::ddg(), TTAProgram::Move::destination(), BoostGraph< GraphNode, GraphEdge >::dropNode(), BFOptimization::duplicator(), MoveNodeDuplicator::getMoveNode(), BFOptimization::ii(), TTAProgram::Terminal::immediateUnit(), SimpleResourceManager::immediateWriteCycle(), immRegIndex_, immu_, TTAProgram::Terminal::index(), TTAProgram::Terminal::isImmediateRegister(), MoveNode::move(), TTAMachine::Component::name(), BF2Scheduler::nodeAndCopyKilled(), BF2Scheduler::nodeResurrected(), oldImmWriteCycle_, TTAProgram::Terminal::operationIndex(), originalCycle_, originalRemovedBus_, prologBus_, prologImmWriteCycle_, BFOptimization::prologRM(), BFShareOperand::removed_, BoostGraph< GraphNode, GraphEdge >::restoreNodeFromParent(), BFOptimization::rm(), BFOptimization::sched_, BFShareOperand::shared_, TTAProgram::Move::source(), MoveNode::toString(), and BFOptimization::unassign().

Here is the call graph for this function:

◆ undoOnlyMe()

void BFShareOperandWithScheduled::undoOnlyMe ( )

protectedvirtual

Undoes the operations done by this class but not children. This method should be overloaded by most derived classes.

Reimplemented from BFShareOperand.

Definition at line 105 of file BFShareOperandWithScheduled.cc.

                                             {
#ifdef DEBUG_BUBBLEFISH_SCHEDULER
    std::cerr << "\t\t\t\t\tUndoing operandshare: " << shared_.toString()
              << std::endl;
#endif
    BFShareOperand::undoOnlyMe();
    sched_.nodeResurrected(removed_);
    ddg().restoreNodeFromParent(removed_);
    assign(originalCycle_, removed_, originalRemovedBus_, NULL, NULL,
           prologBus_, oldImmWriteCycle_, prologImmWriteCycle_, immu_,
           immRegIndex_);
}