BFTryRemoveGuard Class Reference

#include <BFTryRemoveGuard.hh>

Inheritance diagram for BFTryRemoveGuard:

Collaboration diagram for BFTryRemoveGuard:

Public Member Functions
	BFTryRemoveGuard (BF2Scheduler &sched, MoveNode &mn)
bool	operator() () override
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 ()

Private Attributes
MoveNode &	mn_

Additional Inherited Members
Static Public Member Functions inherited from BFOptimization
static void	clearPrologMoves ()
static MoveNode *	getSisterTrigger (const MoveNode &mn, const TTAMachine::Machine &mach)
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)
virtual void	undoOnlyMe ()
Protected Attributes inherited from BFOptimization
BF2Scheduler &	sched_
Protected Attributes inherited from Reversible
std::stack< Reversible * >	preChildren_
std::stack< Reversible * >	postChildren_
Static Protected Attributes inherited from BFOptimization
static std::map< MoveNode *, MoveNode *, MoveNode::Comparator >	prologMoves_

Detailed Description

Definition at line 43 of file BFTryRemoveGuard.hh.

Constructor & Destructor Documentation

BFTryRemoveGuard()

BFTryRemoveGuard::BFTryRemoveGuard ( BF2Scheduler &  sched, MoveNode &  mn  )

inline

Definition at line 45 of file BFTryRemoveGuard.hh.

                                           :
        BFOptimization(sched), mn_(mn) {}

Member Function Documentation

operator()()

bool BFTryRemoveGuard::operator() ( )

overridevirtual

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

Implements Reversible.

Definition at line 43 of file BFTryRemoveGuard.cc.

                                  {
    if (mn_.move().isUnconditional()) {
        return false;
    }
    if (!canBeSpeculated(mn_)) {
        return false;
    }
    if (MachineConnectivityCheck::canTransportMove(
            mn_, targetMachine(), true)) {
        return runPostChild(new BFRemoveGuard(sched_, mn_));
    }
    return false;
}

References BFOptimization::canBeSpeculated(), MachineConnectivityCheck::canTransportMove(), TTAProgram::Move::isUnconditional(), mn_, MoveNode::move(), Reversible::runPostChild(), BFOptimization::sched_, and BFOptimization::targetMachine().

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Member Data Documentation

mn_

MoveNode& BFTryRemoveGuard::mn_

private

Definition at line 50 of file BFTryRemoveGuard.hh.

Referenced by operator()().

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

• BFTryRemoveGuard.hh
• BFTryRemoveGuard.cc