LLVM  10.0.0svn
Public Member Functions | Protected Member Functions | List of all members
llvm::PPCPostRASchedStrategy Class Reference

A MachineSchedStrategy implementation for PowerPC post RA scheduling. More...

#include "Target/PowerPC/PPCMachineScheduler.h"

Inheritance diagram for llvm::PPCPostRASchedStrategy:
Inheritance graph
[legend]
Collaboration diagram for llvm::PPCPostRASchedStrategy:
Collaboration graph
[legend]

Public Member Functions

 PPCPostRASchedStrategy (const MachineSchedContext *C)
 
- Public Member Functions inherited from llvm::PostGenericScheduler
 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 registerRoots () override
 Notify this strategy that all roots have been released (including those that depend on EntrySU or ExitSU). 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
 

Protected Member Functions

void initialize (ScheduleDAGMI *Dag) override
 Initialize the strategy after building the DAG for a new region. More...
 
SUnitpickNode (bool &IsTopNode) override
 Pick the next node to schedule. More...
 
void enterMBB (MachineBasicBlock *MBB) override
 Tell the strategy that MBB is about to be processed. More...
 
void leaveMBB () override
 Tell the strategy that current MBB is done. More...
 
- Protected Member Functions inherited from llvm::PostGenericScheduler
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 chargetReasonStr (GenericSchedulerBase::CandReason Reason)
 
- Protected Attributes inherited from llvm::PostGenericScheduler
ScheduleDAGMIDAG
 
SchedBoundary Top
 
SmallVector< SUnit *, 8 > BotRoots
 
- Protected Attributes inherited from llvm::GenericSchedulerBase
const MachineSchedContextContext
 
const TargetSchedModelSchedModel = nullptr
 
const TargetRegisterInfoTRI = nullptr
 
SchedRemainder Rem
 

Detailed Description

A MachineSchedStrategy implementation for PowerPC post RA scheduling.

Definition at line 35 of file PPCMachineScheduler.h.

Constructor & Destructor Documentation

◆ PPCPostRASchedStrategy()

llvm::PPCPostRASchedStrategy::PPCPostRASchedStrategy ( const MachineSchedContext C)
inline

Member Function Documentation

◆ enterMBB()

void PPCPostRASchedStrategy::enterMBB ( MachineBasicBlock MBB)
overrideprotectedvirtual

Tell the strategy that MBB is about to be processed.

Reimplemented from llvm::MachineSchedStrategy.

Definition at line 64 of file PPCMachineScheduler.cpp.

References llvm::MachineSchedStrategy::enterMBB().

◆ initialize()

void PPCPostRASchedStrategy::initialize ( ScheduleDAGMI DAG)
overrideprotectedvirtual

Initialize the strategy after building the DAG for a new region.

Reimplemented from llvm::PostGenericScheduler.

Definition at line 74 of file PPCMachineScheduler.cpp.

References llvm::PostGenericScheduler::initialize().

◆ leaveMBB()

void PPCPostRASchedStrategy::leaveMBB ( )
overrideprotectedvirtual

Tell the strategy that current MBB is done.

Reimplemented from llvm::MachineSchedStrategy.

Definition at line 69 of file PPCMachineScheduler.cpp.

References llvm::MachineSchedStrategy::leaveMBB().

◆ pickNode()

SUnit * PPCPostRASchedStrategy::pickNode ( bool IsTopNode)
overrideprotectedvirtual

Pick the next node to schedule.

Reimplemented from llvm::PostGenericScheduler.

Definition at line 79 of file PPCMachineScheduler.cpp.

References llvm::PostGenericScheduler::pickNode().


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