LLVM  13.0.0git
Public Member Functions | List of all members
llvm::mca::DispatchStage Class Referencefinal

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

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Public Member Functions

 DispatchStage (const MCSubtargetInfo &Subtarget, const MCRegisterInfo &MRI, unsigned MaxDispatchWidth, RetireControlUnit &R, RegisterFile &F)
 
bool isAvailable (const InstRef &IR) const override
 Returns true if it can execute IR during this cycle. More...
 
bool hasWorkToComplete () const override
 Returns true if some instructions are still executing this stage. More...
 
Error cycleStart () override
 Called once at the start of each cycle. More...
 
Error execute (InstRef &IR) override
 The primary action that this stage performs on instruction IR. More...
 
void dump () const
 
- Public Member Functions inherited from llvm::mca::Stage
 Stage ()
 
virtual ~Stage ()
 
virtual Error cycleEnd ()
 Called once at the end of each cycle. More...
 
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. More...
 
void addListener (HWEventListener *Listener)
 Add a listener to receive callbacks during the execution of this stage. More...
 
template<typename EventT >
void notifyEvent (const EventT &Event) const
 Notify listeners of a particular hardware event. More...
 

Additional Inherited Members

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

Detailed Description

Definition at line 49 of file DispatchStage.h.

Constructor & Destructor Documentation

◆ DispatchStage()

llvm::mca::DispatchStage::DispatchStage ( const MCSubtargetInfo Subtarget,
const MCRegisterInfo MRI,
unsigned  MaxDispatchWidth,
RetireControlUnit R,
RegisterFile F 
)

Member Function Documentation

◆ cycleStart()

Error llvm::mca::DispatchStage::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 138 of file DispatchStage.cpp.

References assert(), llvm::mca::RegisterFile::cycleStart(), and llvm::mca::RegisterFile::getNumRegisterFiles().

◆ dump()

void llvm::mca::DispatchStage::dump ( ) const

◆ execute()

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

The primary action that this stage performs on instruction IR.

Implements llvm::mca::Stage.

Definition at line 175 of file DispatchStage.cpp.

References assert(), and IR.

◆ hasWorkToComplete()

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

Returns true if some instructions are still executing this stage.

Implements llvm::mca::Stage.

Definition at line 76 of file DispatchStage.h.

◆ isAvailable()

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

Returns true if it can execute IR during this cycle.

Reimplemented from llvm::mca::Stage.

Definition at line 158 of file DispatchStage.cpp.

References llvm::mca::InstrDesc::BeginGroup, llvm::mca::InstructionBase::getDesc(), llvm::mca::InstructionBase::getNumMicroOps(), IR, llvm::min(), and llvm::cl::Required.


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