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

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

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

 EntryStage (SourceMgr &SM)
 
bool isAvailable (const InstRef &IR) const override
 Returns true if it can execute IR during this cycle.
 
bool hasWorkToComplete () const override
 Returns true if some instructions are still executing this stage.
 
Error execute (InstRef &IR) override
 The primary action that this stage performs on instruction IR.
 
Error cycleStart () override
 Called once at the start of each cycle.
 
Error cycleResume () override
 Called after the pipeline is resumed from pausing state.
 
Error cycleEnd () override
 Called once at the end of each cycle.
 
- 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 26 of file EntryStage.h.

Constructor & Destructor Documentation

◆ EntryStage()

llvm::mca::EntryStage::EntryStage ( SourceMgr SM)
inline

Definition at line 39 of file EntryStage.h.

Member Function Documentation

◆ cycleEnd()

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

Called once at the end of each cycle.

Reimplemented from llvm::mca::Stage.

Definition at line 68 of file EntryStage.cpp.

References llvm::drop_begin(), llvm::find_if(), I, and Range.

◆ cycleResume()

llvm::Error llvm::mca::EntryStage::cycleResume ( )
overridevirtual

Called after the pipeline is resumed from pausing state.

Reimplemented from llvm::mca::Stage.

Definition at line 63 of file EntryStage.cpp.

References assert().

◆ cycleStart()

llvm::Error llvm::mca::EntryStage::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 57 of file EntryStage.cpp.

◆ execute()

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

The primary action that this stage performs on instruction IR.

Implements llvm::mca::Stage.

Definition at line 47 of file EntryStage.cpp.

References assert(), llvm::mca::InstRef::invalidate(), and llvm::mca::Stage::moveToTheNextStage().

◆ hasWorkToComplete()

bool llvm::mca::EntryStage::hasWorkToComplete ( ) const
overridevirtual

Returns true if some instructions are still executing this stage.

Implements llvm::mca::Stage.

Definition at line 21 of file EntryStage.cpp.

References llvm::mca::SourceMgr::isEnd().

◆ isAvailable()

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

Returns true if it can execute IR during this cycle.

Reimplemented from llvm::mca::Stage.

Definition at line 25 of file EntryStage.cpp.

References llvm::mca::Stage::checkNextStage().


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