class MicroOpQueueStage

Declaration

class MicroOpQueueStage : public Stage { /* full declaration omitted */ };

Description

A stage that simulates a queue of instruction opcodes.

Declared at: llvm/include/llvm/MCA/Stages/MicroOpQueueStage.h:26

Inherits from: Stage

Method Overview

• public MicroOpQueueStage(unsigned int Size, unsigned int IPC = 0, bool ZeroLatencyStage = true)
• public llvm::Error cycleEnd()
• public llvm::Error cycleStart()
• public llvm::Error execute(llvm::mca::InstRef & IR)
• public bool hasWorkToComplete() const
• public bool isAvailable(const llvm::mca::InstRef & IR) const

Inherited from Stage:

• public addListener
• public checkNextStage
• public cycleEnd
• public cycleStart
• public execute
• protected getListeners
• public hasWorkToComplete
• public isAvailable
• public moveToTheNextStage
• public notifyEvent
• public setNextInSequence

Methods

¶MicroOpQueueStage(unsigned int Size,
                  unsigned int IPC = 0,
                  bool ZeroLatencyStage = true)

Declared at: llvm/include/llvm/MCA/Stages/MicroOpQueueStage.h:64

Parameters

unsigned int Size

unsigned int IPC = 0

bool ZeroLatencyStage = true

¶llvm::Error cycleEnd()

Description

Called once at the end of each cycle.

Declared at: llvm/include/llvm/MCA/Stages/MicroOpQueueStage.h:82

¶llvm::Error cycleStart()

Description

Called once at the start of each cycle. This can be used as a setup phase to prepare for the executions during the cycle.

Declared at: llvm/include/llvm/MCA/Stages/MicroOpQueueStage.h:81

¶llvm::Error execute(llvm::mca::InstRef& IR)

Description

The primary action that this stage performs on instruction IR.

Declared at: llvm/include/llvm/MCA/Stages/MicroOpQueueStage.h:80

Parameters

llvm::mca::InstRef& IR

¶bool hasWorkToComplete() const

Description

Returns true if some instructions are still executing this stage.

Declared at: llvm/include/llvm/MCA/Stages/MicroOpQueueStage.h:76

¶bool isAvailable(
    const llvm::mca::InstRef& IR) const

Description

Returns true if it can execute IR during this cycle.

Declared at: llvm/include/llvm/MCA/Stages/MicroOpQueueStage.h:67

Parameters

const llvm::mca::InstRef& IR