#include "Target/AMDGPU/MCA/AMDGPUCustomBehaviour.h"

Inheritance diagram for llvm::mca::AMDGPUCustomBehaviour:

Public Member Functions
	AMDGPUCustomBehaviour (const MCSubtargetInfo &STI, const mca::SourceMgr &SrcMgr, const MCInstrInfo &MCII)

	~AMDGPUCustomBehaviour ()=default

unsigned	checkCustomHazard (ArrayRef< InstRef > IssuedInst, const InstRef &IR) override
	This method is used to determine if an instruction should be allowed to be dispatched.

Public Member Functions inherited from llvm::mca::CustomBehaviour
	CustomBehaviour (const MCSubtargetInfo &STI, const mca::SourceMgr &SrcMgr, const MCInstrInfo &MCII)

virtual	~CustomBehaviour ()

virtual unsigned	checkCustomHazard (ArrayRef< InstRef > IssuedInst, const InstRef &IR)
	Before the llvm-mca pipeline dispatches an instruction, it first checks for any register or resource dependencies / hazards.

virtual std::vector< std::unique_ptr< View > >	getStartViews (llvm::MCInstPrinter &IP, llvm::ArrayRef< llvm::MCInst > Insts)
	Return a vector of Views that will be added before all other Views.

virtual std::vector< std::unique_ptr< View > >	getPostInstrInfoViews (llvm::MCInstPrinter &IP, llvm::ArrayRef< llvm::MCInst > Insts)
	Return a vector of Views that will be added after the InstructionInfoView.

virtual std::vector< std::unique_ptr< View > >	getEndViews (llvm::MCInstPrinter &IP, llvm::ArrayRef< llvm::MCInst > Insts)
	Return a vector of Views that will be added after all other Views.

Additional Inherited Members
Protected Attributes inherited from llvm::mca::CustomBehaviour
const MCSubtargetInfo &	STI

const mca::SourceMgr &	SrcMgr

const MCInstrInfo &	MCII

Detailed Description

Definition at line 47 of file AMDGPUCustomBehaviour.h.

Constructor & Destructor Documentation

◆ AMDGPUCustomBehaviour()

llvm::mca::AMDGPUCustomBehaviour::AMDGPUCustomBehaviour	(	const MCSubtargetInfo &	STI,
		const mca::SourceMgr &	SrcMgr,
		const MCInstrInfo &	MCII
	)

Definition at line 61 of file AMDGPUCustomBehaviour.cpp.

◆ ~AMDGPUCustomBehaviour()

llvm::mca::AMDGPUCustomBehaviour::~AMDGPUCustomBehaviour ( )

default

Member Function Documentation

◆ checkCustomHazard()

unsigned llvm::mca::AMDGPUCustomBehaviour::checkCustomHazard	(	ArrayRef< InstRef >	IssuedInst,
		const InstRef &	IR
	)

overridevirtual

This method is used to determine if an instruction should be allowed to be dispatched.

The return value is how many cycles until the instruction can be dispatched. This method is called after MCA has already checked for register and hardware dependencies so this method should only implement custom behaviour and dependencies that are not picked up by MCA naturally.

Reimplemented from llvm::mca::CustomBehaviour.

Definition at line 68 of file AMDGPUCustomBehaviour.cpp.

References llvm::mca::InstructionBase::getOpcode(), and IR.

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

lib/Target/AMDGPU/MCA/AMDGPUCustomBehaviour.h
lib/Target/AMDGPU/MCA/AMDGPUCustomBehaviour.cpp