LLVM API Documentation

Public Member Functions | Static Public Member Functions | Public Attributes | Static Public Attributes | Friends
llvm::MCSchedModel Struct Reference

#include <MCSchedule.h>

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List of all members.

Public Member Functions

unsigned getProcessorID () const
bool hasInstrSchedModel () const
 Does this machine model include instruction-level scheduling.
bool isComplete () const
unsigned getNumProcResourceKinds () const
const MCProcResourceDesc * getProcResource (unsigned ProcResourceIdx) const
const MCSchedClassDesc * getSchedClassDesc (unsigned SchedClassIdx) const

Static Public Member Functions

static MCSchedModel GetDefaultSchedModel ()

Public Attributes

unsigned IssueWidth
unsigned MicroOpBufferSize
unsigned LoopMicroOpBufferSize
unsigned LoadLatency
unsigned HighLatency
unsigned MispredictPenalty
bool PostRAScheduler
bool CompleteModel
unsigned ProcID
const MCProcResourceDesc * ProcResourceTable
const MCSchedClassDesc * SchedClassTable
unsigned NumProcResourceKinds
unsigned NumSchedClasses
const InstrItinerary * InstrItineraries

Static Public Attributes

static const unsigned DefaultIssueWidth = 1
static const unsigned DefaultMicroOpBufferSize = 0
static const unsigned DefaultLoopMicroOpBufferSize = 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 136 of file MCSchedule.h.

Member Function Documentation

static MCSchedModel llvm::MCSchedModel::GetDefaultSchedModel ( ) [inline, static]

Definition at line 228 of file MCSchedule.h.

References DefaultHighLatency, DefaultIssueWidth, DefaultLoadLatency, DefaultLoopMicroOpBufferSize, DefaultMicroOpBufferSize, DefaultMispredictPenalty, and llvm::MipsISD::Ret.

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

unsigned llvm::MCSchedModel::getNumProcResourceKinds ( ) const [inline]

Definition at line 209 of file MCSchedule.h.

References NumProcResourceKinds.

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

unsigned llvm::MCSchedModel::getProcessorID ( ) const [inline]

Definition at line 200 of file MCSchedule.h.

References ProcID.

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

const MCProcResourceDesc* llvm::MCSchedModel::getProcResource ( unsigned  ProcResourceIdx) const [inline]

Definition at line 213 of file MCSchedule.h.

References hasInstrSchedModel(), NumProcResourceKinds, and ProcResourceTable.

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

const MCSchedClassDesc* llvm::MCSchedModel::getSchedClassDesc ( unsigned  SchedClassIdx) const [inline]

Definition at line 220 of file MCSchedule.h.

References hasInstrSchedModel(), NumSchedClasses, and SchedClassTable.

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

bool llvm::MCSchedModel::hasInstrSchedModel ( ) const [inline]

Does this machine model include instruction-level scheduling.

Definition at line 203 of file MCSchedule.h.

References SchedClassTable.

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 207 of file MCSchedule.h.

References CompleteModel.

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

Friends And Related Function Documentation

friend class InstrItineraryData [friend]

Definition at line 197 of file MCSchedule.h.

Member Data Documentation

bool llvm::MCSchedModel::CompleteModel

Definition at line 189 of file MCSchedule.h.

Referenced by isComplete().

const unsigned llvm::MCSchedModel::DefaultHighLatency = 10 [static]

Definition at line 180 of file MCSchedule.h.

Referenced by GetDefaultSchedModel().

const unsigned llvm::MCSchedModel::DefaultIssueWidth = 1 [static]

Definition at line 140 of file MCSchedule.h.

Referenced by GetDefaultSchedModel().

const unsigned llvm::MCSchedModel::DefaultLoadLatency = 4 [static]

Definition at line 172 of file MCSchedule.h.

Referenced by GetDefaultSchedModel().

const unsigned llvm::MCSchedModel::DefaultLoopMicroOpBufferSize = 0 [static]

Definition at line 165 of file MCSchedule.h.

Referenced by GetDefaultSchedModel().

const unsigned llvm::MCSchedModel::DefaultMicroOpBufferSize = 0 [static]

Definition at line 157 of file MCSchedule.h.

Referenced by GetDefaultSchedModel().

const unsigned llvm::MCSchedModel::DefaultMispredictPenalty = 10 [static]

Definition at line 185 of file MCSchedule.h.

Referenced by GetDefaultSchedModel().

unsigned llvm::MCSchedModel::HighLatency

Definition at line 179 of file MCSchedule.h.

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

const InstrItinerary* llvm::MCSchedModel::InstrItineraries

Definition at line 198 of file MCSchedule.h.

unsigned llvm::MCSchedModel::IssueWidth

Definition at line 139 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 171 of file MCSchedule.h.

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

unsigned llvm::MCSchedModel::LoopMicroOpBufferSize

Definition at line 164 of file MCSchedule.h.

unsigned llvm::MCSchedModel::MicroOpBufferSize

Definition at line 156 of file MCSchedule.h.

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

unsigned llvm::MCSchedModel::MispredictPenalty

Definition at line 184 of file MCSchedule.h.

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

unsigned llvm::MCSchedModel::NumProcResourceKinds

Definition at line 194 of file MCSchedule.h.

Referenced by getNumProcResourceKinds(), and getProcResource().

unsigned llvm::MCSchedModel::NumSchedClasses

Definition at line 195 of file MCSchedule.h.

Referenced by getSchedClassDesc().

bool llvm::MCSchedModel::PostRAScheduler

Definition at line 187 of file MCSchedule.h.

Referenced by llvm::TargetSubtargetInfo::enablePostMachineScheduler().

unsigned llvm::MCSchedModel::ProcID

Definition at line 191 of file MCSchedule.h.

Referenced by getProcessorID().

const MCProcResourceDesc* llvm::MCSchedModel::ProcResourceTable

Definition at line 192 of file MCSchedule.h.

Referenced by getProcResource().

const MCSchedClassDesc* llvm::MCSchedModel::SchedClassTable

Definition at line 193 of file MCSchedule.h.

Referenced by getSchedClassDesc(), and hasInstrSchedModel().

The documentation for this struct was generated from the following file:

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