PostGenericScheduler - Interface to the scheduling algorithm used by ScheduleDAGMI. More...

#include "llvm/CodeGen/MachineScheduler.h"

Inheritance diagram for llvm::PostGenericScheduler:

Collaboration diagram for llvm::PostGenericScheduler:

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Public Member Functions
	PostGenericScheduler (const MachineSchedContext *C)

	~PostGenericScheduler () override=default

void	initPolicy (MachineBasicBlock::iterator Begin, MachineBasicBlock::iterator End, unsigned NumRegionInstrs) override
	Optionally override the per-region scheduling policy. More...

bool	shouldTrackPressure () const override
	PostRA scheduling does not track pressure. More...

void	initialize (ScheduleDAGMI *Dag) override
	Initialize the strategy after building the DAG for a new region. More...

void	registerRoots () override
	Notify this strategy that all roots have been released (including those that depend on EntrySU or ExitSU). More...

SUnit *	pickNode (bool &IsTopNode) override
	Pick the next node to schedule. More...

void	scheduleTree (unsigned SubtreeID) override
	Scheduler callback to notify that a new subtree is scheduled. More...

void	schedNode (SUnit *SU, bool IsTopNode) override
	Called after ScheduleDAGMI has scheduled an instruction and updated scheduled/remaining flags in the DAG nodes. More...

void	releaseTopNode (SUnit *SU) override
	When all predecessor dependencies have been resolved, free this node for top-down scheduling. More...

void	releaseBottomNode (SUnit *SU) override
	When all successor dependencies have been resolved, free this node for bottom-up scheduling. More...

Public Member Functions inherited from llvm::MachineSchedStrategy
virtual	~MachineSchedStrategy ()=default

virtual void	dumpPolicy () const

virtual bool	shouldTrackLaneMasks () const
	Returns true if lanemasks should be tracked. More...

virtual bool	doMBBSchedRegionsTopDown () const

virtual void	enterMBB (MachineBasicBlock *MBB)
	Tell the strategy that MBB is about to be processed. More...

virtual void	leaveMBB ()
	Tell the strategy that current MBB is done. More...

Protected Member Functions
void	tryCandidate (SchedCandidate &Cand, SchedCandidate &TryCand)
	Apply a set of heuristics to a new candidate for PostRA scheduling. More...

void	pickNodeFromQueue (SchedCandidate &Cand)

Protected Member Functions inherited from llvm::GenericSchedulerBase
	GenericSchedulerBase (const MachineSchedContext *C)

void	setPolicy (CandPolicy &Policy, bool IsPostRA, SchedBoundary &CurrZone, SchedBoundary *OtherZone)
	Set the CandPolicy given a scheduling zone given the current resources and latencies inside and outside the zone. More...

void	traceCandidate (const SchedCandidate &Cand)

Additional Inherited Members
Public Types inherited from llvm::GenericSchedulerBase
enum	CandReason : uint8_t { NoCand, Only1, PhysReg, RegExcess, RegCritical, Stall, Cluster, Weak, RegMax, ResourceReduce, ResourceDemand, BotHeightReduce, BotPathReduce, TopDepthReduce, TopPathReduce, NextDefUse, NodeOrder }
	Represent the type of SchedCandidate found within a single queue. More...

Static Public Member Functions inherited from llvm::GenericSchedulerBase
static const char *	getReasonStr (GenericSchedulerBase::CandReason Reason)

Protected Attributes inherited from llvm::GenericSchedulerBase
const MachineSchedContext *	Context

const TargetSchedModel *	SchedModel = nullptr

const TargetRegisterInfo *	TRI = nullptr

SchedRemainder	Rem