llvm::MCSchedModel Class Reference

#include <MCSchedule.h>

Collaboration diagram for llvm::MCSchedModel:

Public Member Functions
	MCSchedModel ()
	MCSchedModel (unsigned iw, int mbs, unsigned ll, unsigned hl, unsigned mp, bool cm, unsigned pi, const MCProcResourceDesc *pr, const MCSchedClassDesc *sc, unsigned npr, unsigned nsc, const InstrItinerary *ii)
unsigned	getProcessorID () const
bool	hasInstrSchedModel () const
	Does this machine model include instruction-level scheduling. More...
bool	isComplete () const
unsigned	getNumProcResourceKinds () const
const MCProcResourceDesc *	getProcResource (unsigned ProcResourceIdx) const
const MCSchedClassDesc *	getSchedClassDesc (unsigned SchedClassIdx) const

Public Attributes
unsigned	IssueWidth
unsigned	MicroOpBufferSize
unsigned	LoadLatency
unsigned	HighLatency
unsigned	MispredictPenalty
bool	CompleteModel

Static Public Attributes
static MCSchedModel	DefaultSchedModel
static const unsigned	DefaultIssueWidth = 1
static const unsigned	DefaultMicroOpBufferSize = 0
static const unsigned	DefaultLoadLatency = 4
static const unsigned	DefaultHighLatency = 10
static const unsigned	DefaultMispredictPenalty = 10

Friends
class	InstrItineraryData

Detailed Description

Machine model for scheduling, bundling, and heuristics.

The machine model directly provides basic information about the microarchitecture to the scheduler in the form of properties. It also optionally refers to scheduler resource tables and itinerary tables. Scheduler resource tables model the latency and cost for each instruction type. Itinerary tables are an independent mechanism that provides a detailed reservation table describing each cycle of instruction execution. Subtargets may define any or all of the above categories of data depending on the type of CPU and selected scheduler.

Definition at line 131 of file MCSchedule.h.

Constructor & Destructor Documentation

llvm::MCSchedModel::MCSchedModel ( )

inline

Definition at line 194 of file MCSchedule.h.

llvm::MCSchedModel::MCSchedModel ( unsigned  iw, int  mbs, unsigned  ll, unsigned  hl, unsigned  mp, bool  cm, unsigned  pi, const MCProcResourceDesc *  pr, const MCSchedClassDesc *  sc, unsigned  npr, unsigned  nsc, const InstrItinerary *  ii  )

inline

Definition at line 208 of file MCSchedule.h.

Member Function Documentation

unsigned llvm::MCSchedModel::getNumProcResourceKinds ( ) const

inline

Definition at line 226 of file MCSchedule.h.

Referenced by llvm::TargetSchedModel::getNumProcResourceKinds(), and llvm::TargetSchedModel::init().

unsigned llvm::MCSchedModel::getProcessorID ( ) const

inline

Definition at line 217 of file MCSchedule.h.

Referenced by llvm::TargetSchedModel::getProcessorID().

const MCProcResourceDesc* llvm::MCSchedModel::getProcResource ( unsigned  ProcResourceIdx ) const

inline

Definition at line 230 of file MCSchedule.h.

References hasInstrSchedModel().

Referenced by llvm::TargetSchedModel::computeOutputLatency(), llvm::TargetSchedModel::getProcResource(), llvm::TargetSchedModel::getResourceBufferSize(), and llvm::TargetSchedModel::init().

const MCSchedClassDesc* llvm::MCSchedModel::getSchedClassDesc ( unsigned  SchedClassIdx ) const

inline

Definition at line 237 of file MCSchedule.h.

References hasInstrSchedModel().

Referenced by getLatency(), and llvm::TargetSchedModel::resolveSchedClass().

bool llvm::MCSchedModel::hasInstrSchedModel ( ) const

inline

Does this machine model include instruction-level scheduling.

Definition at line 220 of file MCSchedule.h.

Referenced by getLatency(), getProcResource(), getSchedClassDesc(), and llvm::TargetSchedModel::hasInstrSchedModel().

bool llvm::MCSchedModel::isComplete ( ) const

inline

Return true if this machine model data for all instructions with a scheduling class (itinerary class or SchedRW list).

Definition at line 224 of file MCSchedule.h.

References CompleteModel.

Referenced by llvm::TargetSchedModel::computeOperandLatency().

Friends And Related Function Documentation

friend class InstrItineraryData

friend

Definition at line 186 of file MCSchedule.h.

Member Data Documentation

bool llvm::MCSchedModel::CompleteModel

Definition at line 177 of file MCSchedule.h.

Referenced by isComplete().

const unsigned llvm::MCSchedModel::DefaultHighLatency = 10

static

Definition at line 170 of file MCSchedule.h.

const unsigned llvm::MCSchedModel::DefaultIssueWidth = 1

static

Definition at line 138 of file MCSchedule.h.

const unsigned llvm::MCSchedModel::DefaultLoadLatency = 4

static

Definition at line 162 of file MCSchedule.h.

const unsigned llvm::MCSchedModel::DefaultMicroOpBufferSize = 0

static

Definition at line 155 of file MCSchedule.h.

const unsigned llvm::MCSchedModel::DefaultMispredictPenalty = 10

static

Definition at line 175 of file MCSchedule.h.

MCSchedModel MCSchedModel::DefaultSchedModel

static

Definition at line 133 of file MCSchedule.h.

Referenced by llvm::MCSubtargetInfo::getSchedModelForCPU(), and llvm::MCSubtargetInfo::InitCPUSchedModel().

unsigned llvm::MCSchedModel::HighLatency

Definition at line 169 of file MCSchedule.h.

Referenced by llvm::TargetInstrInfo::defaultDefLatency().

unsigned llvm::MCSchedModel::IssueWidth

Definition at line 137 of file MCSchedule.h.

Referenced by llvm::TargetSchedModel::getIssueWidth(), llvm::TargetSchedModel::init(), llvm::ResourcePriorityQueue::reserveResources(), and llvm::ScoreboardHazardRecognizer::ScoreboardHazardRecognizer().

unsigned llvm::MCSchedModel::LoadLatency

Definition at line 161 of file MCSchedule.h.

Referenced by llvm::TargetInstrInfo::defaultDefLatency().

unsigned llvm::MCSchedModel::MicroOpBufferSize

Definition at line 154 of file MCSchedule.h.

Referenced by llvm::TargetSchedModel::computeOutputLatency(), and llvm::TargetSchedModel::getMicroOpBufferSize().

unsigned llvm::MCSchedModel::MispredictPenalty

Definition at line 174 of file MCSchedule.h.

Referenced by llvm::ARMSubtarget::getMispredictionPenalty().

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

• MCSchedule.h
• MCSubtargetInfo.cpp