LLVM: lib/Target/Mips/MipsRegisterBankInfo.cpp File Reference

LLVM 19.0.0git

This file implements the targeting of the RegisterBankInfo class for Mips. More...

#include "MipsRegisterBankInfo.h"
#include "MipsInstrInfo.h"
#include "MipsTargetMachine.h"
#include "llvm/CodeGen/GlobalISel/GISelChangeObserver.h"
#include "llvm/CodeGen/GlobalISel/LegalizationArtifactCombiner.h"
#include "llvm/CodeGen/GlobalISel/LegalizerHelper.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "MipsGenRegisterBank.inc"

Go to the source code of this file.

Namespaces
namespace	llvm
	This is an optimization pass for GlobalISel generic memory operations.

namespace	llvm::Mips

Macros
#define	GET_TARGET_REGBANK_IMPL

Typedefs
using	InstListTy = GISelWorkList< 4 >

Enumerations
enum	llvm::Mips::PartialMappingIdx { llvm::Mips::PMI_GPR , llvm::Mips::PMI_SPR , llvm::Mips::PMI_DPR , llvm::Mips::PMI_MSA , llvm::Mips::PMI_Min = PMI_GPR }

enum	llvm::Mips::ValueMappingIdx { llvm::Mips::InvalidIdx = 0 , llvm::Mips::GPRIdx = 1 , llvm::Mips::SPRIdx = 4 , llvm::Mips::DPRIdx = 7 , llvm::Mips::MSAIdx = 10 }

Functions
static bool	isFloatingPointOpcodeUse (unsigned Opc)

static bool	isFloatingPointOpcodeDef (unsigned Opc)

static bool	isGprbTwoInstrUnalignedLoadOrStore (const MachineInstr *MI)

static bool	isAmbiguous (unsigned Opc)

static const MipsRegisterBankInfo::ValueMapping *	getMSAMapping (const MachineFunction &MF)

static const MipsRegisterBankInfo::ValueMapping *	getFprbMapping (unsigned Size)

static const MipsRegisterBankInfo::ValueMapping *	getGprbOrCustomMapping (unsigned Size, unsigned &MappingID)

static void	combineAwayG_UNMERGE_VALUES (LegalizationArtifactCombiner &ArtCombiner, GUnmerge &MI, GISelChangeObserver &Observer)

Variables
const RegisterBankInfo::PartialMapping	llvm::Mips::PartMappings []

const RegisterBankInfo::ValueMapping	llvm::Mips::ValueMappings []

static const unsigned	CustomMappingID = 1

Detailed Description

This file implements the targeting of the RegisterBankInfo class for Mips.

Todo:: This should be generated by TableGen.

Definition in file MipsRegisterBankInfo.cpp.

Macro Definition Documentation

◆ GET_TARGET_REGBANK_IMPL

#define GET_TARGET_REGBANK_IMPL

Definition at line 21 of file MipsRegisterBankInfo.cpp.

Typedef Documentation

◆ InstListTy

using InstListTy = GISelWorkList<4>

Definition at line 655 of file MipsRegisterBankInfo.cpp.

Function Documentation

◆ combineAwayG_UNMERGE_VALUES()

static void combineAwayG_UNMERGE_VALUES	(	LegalizationArtifactCombiner &	ArtCombiner,
		GUnmerge &	MI,
		GISelChangeObserver &	Observer
	)

static

Definition at line 703 of file MipsRegisterBankInfo.cpp.

References MI, and llvm::LegalizationArtifactCombiner::tryCombineUnmergeValues().

Referenced by llvm::MipsRegisterBankInfo::applyMappingImpl().

◆ getFprbMapping()

static const MipsRegisterBankInfo::ValueMapping * getFprbMapping ( unsigned Size )

static

Definition at line 386 of file MipsRegisterBankInfo.cpp.

References llvm::Mips::DPRIdx, Size, llvm::Mips::SPRIdx, and llvm::Mips::ValueMappings.

Referenced by llvm::MipsRegisterBankInfo::getInstrMapping().

◆ getGprbOrCustomMapping()

static const MipsRegisterBankInfo::ValueMapping * getGprbOrCustomMapping	(	unsigned	Size,
		unsigned &	MappingID
	)

static

Definition at line 396 of file MipsRegisterBankInfo.cpp.

References CustomMappingID, llvm::Mips::DPRIdx, llvm::Mips::GPRIdx, Size, and llvm::Mips::ValueMappings.

Referenced by llvm::MipsRegisterBankInfo::getInstrMapping().

◆ getMSAMapping()

static const MipsRegisterBankInfo::ValueMapping * getMSAMapping ( const MachineFunction & MF )

static

Definition at line 380 of file MipsRegisterBankInfo.cpp.

References assert(), llvm::MachineFunction::getSubtarget(), llvm::MipsSubtarget::hasMSA(), llvm::Mips::MSAIdx, and llvm::Mips::ValueMappings.

Referenced by llvm::MipsRegisterBankInfo::getInstrMapping().

◆ isAmbiguous()

static bool isAmbiguous ( unsigned Opc )

static

Definition at line 145 of file MipsRegisterBankInfo.cpp.

◆ isFloatingPointOpcodeDef()

static bool isFloatingPointOpcodeDef ( unsigned Opc )

static

Definition at line 122 of file MipsRegisterBankInfo.cpp.

References llvm::isPreISelGenericFloatingPointOpcode().

◆ isFloatingPointOpcodeUse()

static bool isFloatingPointOpcodeUse ( unsigned Opc )

static

Definition at line 109 of file MipsRegisterBankInfo.cpp.

References llvm::isPreISelGenericFloatingPointOpcode().

◆ isGprbTwoInstrUnalignedLoadOrStore()

static bool isGprbTwoInstrUnalignedLoadOrStore ( const MachineInstr * MI )

static

Definition at line 132 of file MipsRegisterBankInfo.cpp.

References MI, and llvm::MipsSubtarget::systemSupportsUnalignedAccess().

Variable Documentation

◆ CustomMappingID

const unsigned CustomMappingID = 1

static

Definition at line 391 of file MipsRegisterBankInfo.cpp.

Referenced by getGprbOrCustomMapping(), and llvm::MipsRegisterBankInfo::getInstrMapping().