LLVM 20.0.0git
Public Member Functions | List of all members
llvm::mca::ExecuteStage Class Referencefinal

#include "llvm/MCA/Stages/ExecuteStage.h"

Inheritance diagram for llvm::mca::ExecuteStage:
Inheritance graph
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Public Member Functions

 ExecuteStage (Scheduler &S)
 
 ExecuteStage (Scheduler &S, bool ShouldPerformBottleneckAnalysis)
 
bool hasWorkToComplete () const override
 Returns true if some instructions are still executing this stage.
 
bool isAvailable (const InstRef &IR) const override
 Returns true if it can execute IR during this cycle.
 
Error cycleStart () override
 Called once at the start of each cycle.
 
Error cycleEnd () override
 Called once at the end of each cycle.
 
Error execute (InstRef &IR) override
 The primary action that this stage performs on instruction IR.
 
void notifyInstructionIssued (const InstRef &IR, MutableArrayRef< ResourceUse > Used) const
 
void notifyInstructionExecuted (const InstRef &IR) const
 
void notifyInstructionPending (const InstRef &IR) const
 
void notifyInstructionReady (const InstRef &IR) const
 
void notifyResourceAvailable (const ResourceRef &RR) const
 
void notifyReservedOrReleasedBuffers (const InstRef &IR, bool Reserved) const
 
- Public Member Functions inherited from llvm::mca::Stage
 Stage ()=default
 
virtual ~Stage ()
 
virtual bool isAvailable (const InstRef &IR) const
 Returns true if it can execute IR during this cycle.
 
virtual bool hasWorkToComplete () const =0
 Returns true if some instructions are still executing this stage.
 
virtual Error cycleStart ()
 Called once at the start of each cycle.
 
virtual Error cycleResume ()
 Called after the pipeline is resumed from pausing state.
 
virtual Error cycleEnd ()
 Called once at the end of each cycle.
 
virtual Error execute (InstRef &IR)=0
 The primary action that this stage performs on instruction IR.
 
void setNextInSequence (Stage *NextStage)
 
bool checkNextStage (const InstRef &IR) const
 
Error moveToTheNextStage (InstRef &IR)
 Called when an instruction is ready to move the next pipeline stage.
 
void addListener (HWEventListener *Listener)
 Add a listener to receive callbacks during the execution of this stage.
 
template<typename EventT >
void notifyEvent (const EventT &Event) const
 Notify listeners of a particular hardware event.
 

Additional Inherited Members

- Protected Member Functions inherited from llvm::mca::Stage
const std::set< HWEventListener * > & getListeners () const
 

Detailed Description

Definition at line 28 of file ExecuteStage.h.

Constructor & Destructor Documentation

◆ ExecuteStage() [1/2]

llvm::mca::ExecuteStage::ExecuteStage ( Scheduler S)
inline

Definition at line 50 of file ExecuteStage.h.

◆ ExecuteStage() [2/2]

llvm::mca::ExecuteStage::ExecuteStage ( Scheduler S,
bool  ShouldPerformBottleneckAnalysis 
)
inline

Definition at line 51 of file ExecuteStage.h.

Member Function Documentation

◆ cycleEnd()

Error llvm::mca::ExecuteStage::cycleEnd ( )
overridevirtual

◆ cycleStart()

Error llvm::mca::ExecuteStage::cycleStart ( )
overridevirtual

Called once at the start of each cycle.

This can be used as a setup phase to prepare for the executions during the cycle.

Reimplemented from llvm::mca::Stage.

Definition at line 93 of file ExecuteStage.cpp.

References llvm::mca::Scheduler::cycleEvent(), IR, llvm::mca::Stage::moveToTheNextStage(), notifyInstructionExecuted(), notifyInstructionPending(), notifyInstructionReady(), and notifyResourceAvailable().

◆ execute()

Error llvm::mca::ExecuteStage::execute ( InstRef IR)
overridevirtual

◆ hasWorkToComplete()

bool llvm::mca::ExecuteStage::hasWorkToComplete ( ) const
inlineoverridevirtual

Returns true if some instructions are still executing this stage.

Implements llvm::mca::Stage.

Definition at line 61 of file ExecuteStage.h.

◆ isAvailable()

bool llvm::mca::ExecuteStage::isAvailable ( const InstRef IR) const
overridevirtual

Returns true if it can execute IR during this cycle.

Reimplemented from llvm::mca::Stage.

Definition at line 43 of file ExecuteStage.cpp.

References IR, llvm::mca::Scheduler::isAvailable(), and llvm::mca::toHWStallEventType().

Referenced by execute().

◆ notifyInstructionExecuted()

void llvm::mca::ExecuteStage::notifyInstructionExecuted ( const InstRef IR) const

Definition at line 227 of file ExecuteStage.cpp.

References llvm::dbgs(), llvm::mca::HWInstructionEvent::Executed, IR, and LLVM_DEBUG.

Referenced by cycleStart().

◆ notifyInstructionIssued()

void llvm::mca::ExecuteStage::notifyInstructionIssued ( const InstRef IR,
MutableArrayRef< ResourceUse Used 
) const

◆ notifyInstructionPending()

void llvm::mca::ExecuteStage::notifyInstructionPending ( const InstRef IR) const

Definition at line 233 of file ExecuteStage.cpp.

References llvm::dbgs(), IR, LLVM_DEBUG, and llvm::mca::HWInstructionEvent::Pending.

Referenced by cycleStart(), and execute().

◆ notifyInstructionReady()

void llvm::mca::ExecuteStage::notifyInstructionReady ( const InstRef IR) const

Definition at line 239 of file ExecuteStage.cpp.

References llvm::dbgs(), IR, LLVM_DEBUG, and llvm::mca::HWInstructionEvent::Ready.

Referenced by cycleStart(), and execute().

◆ notifyReservedOrReleasedBuffers()

void llvm::mca::ExecuteStage::notifyReservedOrReleasedBuffers ( const InstRef IR,
bool  Reserved 
) const

◆ notifyResourceAvailable()

void llvm::mca::ExecuteStage::notifyResourceAvailable ( const ResourceRef RR) const

Definition at line 245 of file ExecuteStage.cpp.

References llvm::dbgs(), llvm::mca::Stage::getListeners(), and LLVM_DEBUG.

Referenced by cycleStart().


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