LLVM: llvm::ScoreboardHazardRecognizer Class Reference (original) (raw)

#include "[llvm/CodeGen/ScoreboardHazardRecognizer.h](ScoreboardHazardRecognizer%5F8h%5Fsource.html)"

Public Member Functions
	ScoreboardHazardRecognizer (const InstrItineraryData II, const ScheduleDAG DAG, const char *ParentDebugType="")
bool	atIssueLimit () const override
	atIssueLimit - Return true if no more instructions may be issued in this cycle.
HazardType	getHazardType (SUnit *SU, int Stalls) override
	getHazardType - Return the hazard type of emitting this node.
void	Reset () override
	Reset - This callback is invoked when a new block of instructions is about to be schedule.
void	EmitInstruction (SUnit *SU) override
	EmitInstruction - This callback is invoked when an instruction is emitted, to advance the hazard state.
void	AdvanceCycle () override
	AdvanceCycle - This callback is invoked whenever the next top-down instruction to be scheduled cannot issue in the current cycle, either because of latency or resource conflicts.
void	RecedeCycle () override
	RecedeCycle - This callback is invoked whenever the next bottom-up instruction to be scheduled cannot issue in the current cycle, either because of latency or resource conflicts.
Public Member Functions inherited from llvm::ScheduleHazardRecognizer
	ScheduleHazardRecognizer ()=default
virtual	~ScheduleHazardRecognizer ()
unsigned	getMaxLookAhead () const
bool	isEnabled () const
virtual void	EmitInstruction (MachineInstr *)
	This overload will be used when the hazard recognizer is being used by a non-scheduling pass, which does not use SUnits.
virtual unsigned	PreEmitNoops (SUnit *)
	PreEmitNoops - This callback is invoked prior to emitting an instruction.
virtual unsigned	PreEmitNoops (MachineInstr *)
	This overload will be used when the hazard recognizer is being used by a non-scheduling pass, which does not use SUnits.
virtual bool	ShouldPreferAnother (SUnit *)
	ShouldPreferAnother - This callback may be invoked if getHazardType returns NoHazard.
virtual void	EmitNoop ()
	EmitNoop - This callback is invoked when a noop was added to the instruction stream.
virtual void	EmitNoops (unsigned Quantity)
	EmitNoops - This callback is invoked when noops were added to the instruction stream.

Additional Inherited Members
Public Types inherited from llvm::ScheduleHazardRecognizer
enum	HazardType { NoHazard, Hazard, NoopHazard }
Protected Attributes inherited from llvm::ScheduleHazardRecognizer
unsigned	MaxLookAhead = 0
	MaxLookAhead - Indicate the number of cycles in the scoreboard state.

◆ AdvanceCycle()

void ScoreboardHazardRecognizer::AdvanceCycle ( )	overridevirtual

◆ atIssueLimit()

bool ScoreboardHazardRecognizer::atIssueLimit ( ) const	overridevirtual

◆ EmitInstruction()

void ScoreboardHazardRecognizer::EmitInstruction ( SUnit * )	overridevirtual

◆ getHazardType()

◆ RecedeCycle()

void ScoreboardHazardRecognizer::RecedeCycle ( )	overridevirtual

◆ Reset()

void ScoreboardHazardRecognizer::Reset ( )	overridevirtual

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

include/llvm/CodeGen/ScoreboardHazardRecognizer.h
lib/CodeGen/ScoreboardHazardRecognizer.cpp