LLVM  16.0.0git
Protected Member Functions | List of all members
llvm::HexagonConvergingVLIWScheduler Class Reference

#include "Target/Hexagon/HexagonMachineScheduler.h"

Inheritance diagram for llvm::HexagonConvergingVLIWScheduler:
Inheritance graph
Collaboration diagram for llvm::HexagonConvergingVLIWScheduler:
Collaboration graph

Protected Member Functions

VLIWResourceModelcreateVLIWResourceModel (const TargetSubtargetInfo &STI, const TargetSchedModel *SchedModel) const override
int SchedulingCost (ReadyQueue &Q, SUnit *SU, SchedCandidate &Candidate, RegPressureDelta &Delta, bool verbose) override
 Single point to compute overall scheduling cost. More...
- Protected Member Functions inherited from llvm::ConvergingVLIWScheduler
SUnitpickNodeBidrectional (bool &IsTopNode)
 Pick the best candidate node from either the top or bottom queue. More...
int pressureChange (const SUnit *SU, bool isBotUp)
 Check if the instruction changes the register pressure of a register in the high pressure set. More...
CandResult pickNodeFromQueue (VLIWSchedBoundary &Zone, const RegPressureTracker &RPTracker, SchedCandidate &Candidate)
 Pick the best candidate from the top queue. More...
void traceCandidate (const char *Label, const ReadyQueue &Q, SUnit *SU, int Cost, PressureChange P=PressureChange())
void readyQueueVerboseDump (const RegPressureTracker &RPTracker, SchedCandidate &Candidate, ReadyQueue &Q)

Additional Inherited Members

- Public Types inherited from llvm::ConvergingVLIWScheduler
enum  { TopQID = 1, BotQID = 2, LogMaxQID = 2 }
 SUnit::NodeQueueId: 0 (none), 1 (top), 2 (bot), 3 (both) More...
- Public Member Functions inherited from llvm::ConvergingVLIWScheduler
 ConvergingVLIWScheduler ()
virtual ~ConvergingVLIWScheduler ()=default
void initialize (ScheduleDAGMI *dag) override
 Initialize the strategy after building the DAG for a new region. More...
SUnitpickNode (bool &IsTopNode) override
 Pick the best node to balance the schedule. Implements MachineSchedStrategy. More...
void schedNode (SUnit *SU, bool IsTopNode) override
 Update the scheduler's state after scheduling a node. 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...
unsigned reportPackets ()
- Public Member Functions inherited from llvm::MachineSchedStrategy
virtual ~MachineSchedStrategy ()=default
virtual void initPolicy (MachineBasicBlock::iterator Begin, MachineBasicBlock::iterator End, unsigned NumRegionInstrs)
 Optionally override the per-region scheduling policy. More...
virtual void dumpPolicy () const
virtual bool shouldTrackPressure () const
 Check if pressure tracking is needed before building the DAG and initializing this strategy. More...
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...
virtual void registerRoots ()
 Notify this strategy that all roots have been released (including those that depend on EntrySU or ExitSU). More...
virtual void scheduleTree (unsigned SubtreeID)
 Scheduler callback to notify that a new subtree is scheduled. More...
- Protected Types inherited from llvm::ConvergingVLIWScheduler
enum  CandResult {
  NoCand, NodeOrder, SingleExcess, SingleCritical,
  SingleMax, MultiPressure, BestCost, Weak
 Represent the type of SchedCandidate found within a single queue. More...
- Protected Attributes inherited from llvm::ConvergingVLIWScheduler
VLIWMachineSchedulerDAG = nullptr
const TargetSchedModelSchedModel = nullptr
VLIWSchedBoundary Top
VLIWSchedBoundary Bot
SmallVector< bool > HighPressureSets
 List of pressure sets that have a high pressure level in the region. More...
- Static Protected Attributes inherited from llvm::ConvergingVLIWScheduler
static constexpr unsigned PriorityOne = 200
static constexpr unsigned PriorityTwo = 50
static constexpr unsigned PriorityThree = 75
static constexpr unsigned ScaleTwo = 10

Detailed Description

Definition at line 31 of file HexagonMachineScheduler.h.

Member Function Documentation

◆ createVLIWResourceModel()

VLIWResourceModel * HexagonConvergingVLIWScheduler::createVLIWResourceModel ( const TargetSubtargetInfo STI,
const TargetSchedModel SchedModel 
) const

◆ SchedulingCost()

int HexagonConvergingVLIWScheduler::SchedulingCost ( ReadyQueue Q,
SUnit SU,
SchedCandidate Candidate,
RegPressureDelta Delta,
bool  verbose 

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