llvm::M68kSubtarget Class Reference

#include "Target/M68k/M68kSubtarget.h"

Inheritance diagram for llvm::M68kSubtarget:

Public Member Functions
	M68kSubtarget (const Triple &TT, StringRef CPU, StringRef FS, const M68kTargetMachine &_TM)
	This constructor initializes the data members to match that of the specified triple.
void	ParseSubtargetFeatures (StringRef CPU, StringRef TuneCPU, StringRef FS)
	Parses features string setting specified subtarget options.
bool	atLeastM68000 () const
bool	atLeastM68010 () const
bool	atLeastM68020 () const
bool	atLeastM68030 () const
bool	atLeastM68040 () const
bool	atLeastM68060 () const
bool	hasFPU () const
	Floating point support.
bool	atLeastM68881 () const
bool	atLeastM68882 () const
bool	useSmallSection () const
const Triple &	getTargetTriple () const
bool	isTargetELF () const
bool	isLegalToCallImmediateAddr () const
	Return true if the subtarget allows calls to immediate address.
bool	isPositionIndependent () const
bool	isRegisterReservedByUser (Register R) const override
unsigned char	classifyLocalReference (const GlobalValue *GV) const
	Classify a global variable reference for the current subtarget according to how we should reference it in a non-pcrel context.
unsigned char	classifyGlobalReference (const GlobalValue *GV, const Module &M) const
	Classify a global variable reference for the current subtarget according to how we should reference it in a non-pcrel context.
unsigned char	classifyGlobalReference (const GlobalValue *GV) const
unsigned char	classifyExternalReference (const Module &M) const
	Classify a external variable reference for the current subtarget according to how we should reference it in a non-pcrel context.
unsigned char	classifyGlobalFunctionReference (const GlobalValue *GV, const Module &M) const
	Classify a global function reference for the current subtarget.
unsigned char	classifyGlobalFunctionReference (const GlobalValue *GV) const override
unsigned char	classifyBlockAddressReference () const
	Classify a blockaddress reference for the current subtarget according to how we should reference it in a non-pcrel context.
unsigned	getJumpTableEncoding () const
Align	getStackAlignment () const
	TODO this must be controlled by options like -malign-int and -mshort.
unsigned	getSlotSize () const
	getSlotSize - Stack slot size in bytes.
M68kSubtarget &	initializeSubtargetDependencies (StringRef CPU, Triple TT, StringRef FS, const M68kTargetMachine &TM)
const SelectionDAGTargetInfo *	getSelectionDAGInfo () const override
const M68kInstrInfo *	getInstrInfo () const override
const M68kFrameLowering *	getFrameLowering () const override
const M68kRegisterInfo *	getRegisterInfo () const override
const M68kTargetLowering *	getTargetLowering () const override
const InstrItineraryData *	getInstrItineraryData () const override
const CallLowering *	getCallLowering () const override
InstructionSelector *	getInstructionSelector () const override
const LegalizerInfo *	getLegalizerInfo () const override
const RegisterBankInfo *	getRegBankInfo () const override

Protected Types
enum	SubtargetEnum {   M00 , M10 , M20 , M30 ,   M40 , M60 }
enum	FPKindEnum { M881 , M882 }

Protected Attributes
SubtargetEnum	SubtargetKind = M00
std::optional< FPKindEnum >	FPUKind
std::bitset< M68k::NUM_TARGET_REGS >	UserReservedRegister
InstrItineraryData	InstrItins
bool	UseSmallSection = true
	Small section is used.
const M68kTargetMachine &	TM
SelectionDAGTargetInfo	TSInfo
M68kInstrInfo	InstrInfo
M68kFrameLowering	FrameLowering
M68kTargetLowering	TLInfo
unsigned	stackAlignment = 8
	The minimum alignment known to hold of the stack frame on entry to the function and which must be maintained by every function.
Triple	TargetTriple
std::unique_ptr< CallLowering >	CallLoweringInfo
std::unique_ptr< InstructionSelector >	InstSelector
std::unique_ptr< LegalizerInfo >	Legalizer
std::unique_ptr< RegisterBankInfo >	RegBankInfo

Detailed Description

Definition at line 44 of file M68kSubtarget.h.

Member Enumeration Documentation

FPKindEnum

enum llvm::M68kSubtarget::FPKindEnum

protected

Enumerator
M881
M882

Definition at line 54 of file M68kSubtarget.h.

SubtargetEnum

enum llvm::M68kSubtarget::SubtargetEnum

protected

Enumerator
M00
M10
M20
M30
M40
M60

Definition at line 51 of file M68kSubtarget.h.

Constructor & Destructor Documentation

M68kSubtarget()

M68kSubtarget::M68kSubtarget	(	const Triple &	TT,
		StringRef	CPU,
		StringRef	FS,
		const M68kTargetMachine &	_TM
	)

This constructor initializes the data members to match that of the specified triple.

Definition at line 51 of file M68kSubtarget.cpp.

References CallLoweringInfo, llvm::createM68kInstructionSelector(), getRegisterInfo(), getTargetLowering(), InstSelector, RegBankInfo, and TM.

Member Function Documentation

atLeastM68000()

bool llvm::M68kSubtarget::atLeastM68000 ( ) const

inline

Definition at line 87 of file M68kSubtarget.h.

References M00, and SubtargetKind.

atLeastM68010()

bool llvm::M68kSubtarget::atLeastM68010 ( ) const

inline

Definition at line 88 of file M68kSubtarget.h.

References M10, and SubtargetKind.

atLeastM68020()

bool llvm::M68kSubtarget::atLeastM68020 ( ) const

inline

Definition at line 89 of file M68kSubtarget.h.

References M20, and SubtargetKind.

Referenced by classifyGlobalReference(), classifyLocalReference(), getJumpTableEncoding(), llvm::M68kTargetLowering::M68kTargetLowering(), and llvm::M68kTargetLowering::shouldExpandAtomicRMWInIR().

atLeastM68030()

bool llvm::M68kSubtarget::atLeastM68030 ( ) const

inline

Definition at line 90 of file M68kSubtarget.h.

References M30, and SubtargetKind.

atLeastM68040()

bool llvm::M68kSubtarget::atLeastM68040 ( ) const

inline

Definition at line 91 of file M68kSubtarget.h.

References M40, and SubtargetKind.

atLeastM68060()

bool llvm::M68kSubtarget::atLeastM68060 ( ) const

inline

Definition at line 92 of file M68kSubtarget.h.

References M60, and SubtargetKind.

atLeastM68881()

bool llvm::M68kSubtarget::atLeastM68881 ( ) const

inline

Definition at line 96 of file M68kSubtarget.h.

References FPUKind, hasFPU(), and M881.

atLeastM68882()

bool llvm::M68kSubtarget::atLeastM68882 ( ) const

inline

Definition at line 97 of file M68kSubtarget.h.

References FPUKind, hasFPU(), and M882.

classifyBlockAddressReference()

unsigned char M68kSubtarget::classifyBlockAddressReference

(

)

const

Classify a blockaddress reference for the current subtarget according to how we should reference it in a non-pcrel context.

Definition at line 162 of file M68kSubtarget.cpp.

References llvm::TargetMachine::getCodeModel(), isPositionIndependent(), llvm::CodeModel::Kernel, llvm::CodeModel::Large, llvm_unreachable, llvm::CodeModel::Medium, llvm::M68kII::MO_ABSOLUTE_ADDRESS, llvm::M68kII::MO_PC_RELATIVE_ADDRESS, llvm::CodeModel::Small, and TM.

classifyExternalReference()

unsigned char M68kSubtarget::classifyExternalReference

(

const Module &

M

)

const

Classify a external variable reference for the current subtarget according to how we should reference it in a non-pcrel context.

Definition at line 216 of file M68kSubtarget.cpp.

References classifyLocalReference(), isPositionIndependent(), llvm::M68kII::MO_GOT, llvm::M68kII::MO_GOTPCREL, llvm::TargetMachine::shouldAssumeDSOLocal(), and TM.

classifyGlobalFunctionReference() [1/2]

unsigned char M68kSubtarget::classifyGlobalFunctionReference ( const GlobalValue *  GV ) const

override

Definition at line 281 of file M68kSubtarget.cpp.

References classifyGlobalFunctionReference(), and llvm::GlobalValue::getParent().

classifyGlobalFunctionReference() [2/2]

unsigned char M68kSubtarget::classifyGlobalFunctionReference	(	const GlobalValue *	GV,
		const Module &	M
	)		const

Classify a global function reference for the current subtarget.

Definition at line 286 of file M68kSubtarget.cpp.

References F, isPositionIndependent(), llvm::M68kII::MO_ABSOLUTE_ADDRESS, llvm::M68kII::MO_GOTPCREL, llvm::M68kII::MO_NO_FLAG, llvm::M68kII::MO_PLT, llvm::TargetMachine::shouldAssumeDSOLocal(), and TM.

Referenced by classifyGlobalFunctionReference().

classifyGlobalReference() [1/2]

unsigned char M68kSubtarget::classifyGlobalReference

(

const GlobalValue *

GV

)

const

Definition at line 227 of file M68kSubtarget.cpp.

References classifyGlobalReference(), and llvm::GlobalValue::getParent().

classifyGlobalReference() [2/2]

unsigned char M68kSubtarget::classifyGlobalReference	(	const GlobalValue *	GV,
		const Module &	M
	)		const

Classify a global variable reference for the current subtarget according to how we should reference it in a non-pcrel context.

Definition at line 231 of file M68kSubtarget.cpp.

References atLeastM68020(), classifyLocalReference(), llvm::TargetMachine::getCodeModel(), isPositionIndependent(), llvm::CodeModel::Kernel, llvm::CodeModel::Large, llvm_unreachable, llvm::CodeModel::Medium, llvm::M68kII::MO_ABSOLUTE_ADDRESS, llvm::M68kII::MO_GOTOFF, llvm::M68kII::MO_GOTPCREL, llvm::M68kII::MO_PC_RELATIVE_ADDRESS, llvm::TargetMachine::shouldAssumeDSOLocal(), llvm::CodeModel::Small, and TM.

Referenced by classifyGlobalReference().

classifyLocalReference()

unsigned char M68kSubtarget::classifyLocalReference

(

const GlobalValue *

GV

)

const

Classify a global variable reference for the current subtarget according to how we should reference it in a non-pcrel context.

Definition at line 182 of file M68kSubtarget.cpp.

References atLeastM68020(), llvm::TargetMachine::getCodeModel(), isPositionIndependent(), llvm::CodeModel::Kernel, llvm::CodeModel::Large, llvm_unreachable, llvm::CodeModel::Medium, llvm::M68kII::MO_ABSOLUTE_ADDRESS, llvm::M68kII::MO_GOTOFF, llvm::M68kII::MO_PC_RELATIVE_ADDRESS, llvm::CodeModel::Small, and TM.

Referenced by classifyExternalReference(), and classifyGlobalReference().

getCallLowering()

const CallLowering * M68kSubtarget::getCallLowering ( ) const

override

Definition at line 65 of file M68kSubtarget.cpp.

References CallLoweringInfo.

getFrameLowering()

const M68kFrameLowering * llvm::M68kSubtarget::getFrameLowering ( ) const

inlineoverride

Definition at line 157 of file M68kSubtarget.h.

References FrameLowering.

getInstrInfo()

const M68kInstrInfo * llvm::M68kSubtarget::getInstrInfo ( ) const

inlineoverride

Definition at line 155 of file M68kSubtarget.h.

References InstrInfo.

Referenced by llvm::M68kCallLowering::lowerCall().

getInstrItineraryData()

const InstrItineraryData * llvm::M68kSubtarget::getInstrItineraryData ( ) const

inlineoverride

Definition at line 169 of file M68kSubtarget.h.

References InstrItins.

getInstructionSelector()

InstructionSelector * M68kSubtarget::getInstructionSelector ( ) const

override

Definition at line 69 of file M68kSubtarget.cpp.

References InstSelector.

getJumpTableEncoding()

unsigned M68kSubtarget::getJumpTableEncoding

(

)

const

Definition at line 263 of file M68kSubtarget.cpp.

References atLeastM68020(), llvm::MachineJumpTableInfo::EK_BlockAddress, llvm::MachineJumpTableInfo::EK_Custom32, llvm::MachineJumpTableInfo::EK_LabelDifference32, llvm::TargetMachine::getCodeModel(), isPositionIndependent(), llvm::CodeModel::Large, llvm::CodeModel::Medium, and TM.

Referenced by llvm::M68kTargetLowering::getJumpTableEncoding().

getLegalizerInfo()

const LegalizerInfo * M68kSubtarget::getLegalizerInfo ( ) const

override

Definition at line 73 of file M68kSubtarget.cpp.

getRegBankInfo()

const RegisterBankInfo * M68kSubtarget::getRegBankInfo ( ) const

override

Definition at line 77 of file M68kSubtarget.cpp.

References RegBankInfo.

Referenced by llvm::M68kCallLowering::lowerCall().

getRegisterInfo()

const M68kRegisterInfo * llvm::M68kSubtarget::getRegisterInfo ( ) const

inlineoverride

Definition at line 161 of file M68kSubtarget.h.

References llvm::M68kInstrInfo::getRegisterInfo(), and InstrInfo.

Referenced by llvm::M68kFrameLowering::hasFPImpl(), llvm::M68kCallLowering::lowerCall(), M68kSubtarget(), and llvm::M68kTargetLowering::M68kTargetLowering().

getSelectionDAGInfo()

const SelectionDAGTargetInfo * llvm::M68kSubtarget::getSelectionDAGInfo ( ) const

inlineoverride

Definition at line 151 of file M68kSubtarget.h.

References TSInfo.

getSlotSize()

unsigned llvm::M68kSubtarget::getSlotSize ( ) const

inline

getSlotSize - Stack slot size in bytes.

Definition at line 145 of file M68kSubtarget.h.

Referenced by llvm::M68kFrameLowering::M68kFrameLowering().

getStackAlignment()

Align llvm::M68kSubtarget::getStackAlignment ( ) const

inline

TODO this must be controlled by options like -malign-int and -mshort.

Definition at line 142 of file M68kSubtarget.h.

References stackAlignment.

getTargetLowering()

const M68kTargetLowering * llvm::M68kSubtarget::getTargetLowering ( ) const

inlineoverride

Definition at line 165 of file M68kSubtarget.h.

References TLInfo.

Referenced by M68kSubtarget().

getTargetTriple()

const Triple & llvm::M68kSubtarget::getTargetTriple ( ) const

inline

Definition at line 101 of file M68kSubtarget.h.

References TargetTriple.

hasFPU()

bool llvm::M68kSubtarget::hasFPU ( ) const

inline

Floating point support.

Definition at line 95 of file M68kSubtarget.h.

References FPUKind.

Referenced by atLeastM68881(), and atLeastM68882().

initializeSubtargetDependencies()

M68kSubtarget & M68kSubtarget::initializeSubtargetDependencies	(	StringRef	CPU,
		Triple	TT,
		StringRef	FS,
		const M68kTargetMachine &	TM
	)

Definition at line 87 of file M68kSubtarget.cpp.

References InstrItins, ParseSubtargetFeatures(), selectM68kCPU(), stackAlignment, and llvm::StringRef::str().

isLegalToCallImmediateAddr()

bool M68kSubtarget::isLegalToCallImmediateAddr

(

)

const

Return true if the subtarget allows calls to immediate address.

Definition at line 85 of file M68kSubtarget.cpp.

isPositionIndependent()

bool M68kSubtarget::isPositionIndependent

(

)

const

Definition at line 81 of file M68kSubtarget.cpp.

References llvm::TargetMachine::isPositionIndependent(), and TM.

Referenced by classifyBlockAddressReference(), classifyExternalReference(), classifyGlobalFunctionReference(), classifyGlobalReference(), classifyLocalReference(), and getJumpTableEncoding().

isRegisterReservedByUser()

bool llvm::M68kSubtarget::isRegisterReservedByUser ( Register  R ) const

inlineoverride

Definition at line 110 of file M68kSubtarget.h.

References assert(), and UserReservedRegister.

Referenced by llvm::M68kRegisterInfo::getReservedRegs().

isTargetELF()

bool llvm::M68kSubtarget::isTargetELF ( ) const

inline

Definition at line 103 of file M68kSubtarget.h.

References llvm::Triple::isOSBinFormatELF(), and TargetTriple.

ParseSubtargetFeatures()

void llvm::M68kSubtarget::ParseSubtargetFeatures	(	StringRef	CPU,
		StringRef	TuneCPU,
		StringRef	FS
	)

Parses features string setting specified subtarget options.

Definition of function is auto generated by tblgen.

Referenced by initializeSubtargetDependencies().

useSmallSection()

bool llvm::M68kSubtarget::useSmallSection ( ) const

inline

Definition at line 99 of file M68kSubtarget.h.

References UseSmallSection.

Member Data Documentation

CallLoweringInfo

std::unique_ptr<CallLowering> llvm::M68kSubtarget::CallLoweringInfo

protected

Definition at line 175 of file M68kSubtarget.h.

Referenced by getCallLowering(), and M68kSubtarget().

FPUKind

std::optional<FPKindEnum> llvm::M68kSubtarget::FPUKind

protected

Definition at line 55 of file M68kSubtarget.h.

Referenced by atLeastM68881(), atLeastM68882(), and hasFPU().

FrameLowering

M68kFrameLowering llvm::M68kSubtarget::FrameLowering

protected

Definition at line 68 of file M68kSubtarget.h.

Referenced by getFrameLowering().

InstrInfo

M68kInstrInfo llvm::M68kSubtarget::InstrInfo

protected

Definition at line 67 of file M68kSubtarget.h.

Referenced by getInstrInfo(), and getRegisterInfo().

InstrItins

InstrItineraryData llvm::M68kSubtarget::InstrItins

protected

Definition at line 59 of file M68kSubtarget.h.

Referenced by getInstrItineraryData(), and initializeSubtargetDependencies().

InstSelector

std::unique_ptr<InstructionSelector> llvm::M68kSubtarget::InstSelector

protected

Definition at line 176 of file M68kSubtarget.h.

Referenced by getInstructionSelector(), and M68kSubtarget().

Legalizer

std::unique_ptr<LegalizerInfo> llvm::M68kSubtarget::Legalizer

protected

Definition at line 177 of file M68kSubtarget.h.

RegBankInfo

std::unique_ptr<RegisterBankInfo> llvm::M68kSubtarget::RegBankInfo

protected

Definition at line 178 of file M68kSubtarget.h.

Referenced by getRegBankInfo(), and M68kSubtarget().

stackAlignment

unsigned llvm::M68kSubtarget::stackAlignment = 8

protected

The minimum alignment known to hold of the stack frame on entry to the function and which must be maintained by every function.

Definition at line 73 of file M68kSubtarget.h.

Referenced by getStackAlignment(), and initializeSubtargetDependencies().

SubtargetKind

SubtargetEnum llvm::M68kSubtarget::SubtargetKind = M00

protected

Definition at line 52 of file M68kSubtarget.h.

Referenced by atLeastM68000(), atLeastM68010(), atLeastM68020(), atLeastM68030(), atLeastM68040(), and atLeastM68060().

TargetTriple

Triple llvm::M68kSubtarget::TargetTriple

protected

Definition at line 75 of file M68kSubtarget.h.

Referenced by getTargetTriple(), and isTargetELF().

TLInfo

M68kTargetLowering llvm::M68kSubtarget::TLInfo

protected

Definition at line 69 of file M68kSubtarget.h.

Referenced by getTargetLowering().

TM

const M68kTargetMachine& llvm::M68kSubtarget::TM

protected

Definition at line 64 of file M68kSubtarget.h.

Referenced by classifyBlockAddressReference(), classifyExternalReference(), classifyGlobalFunctionReference(), classifyGlobalReference(), classifyLocalReference(), getJumpTableEncoding(), isPositionIndependent(), and M68kSubtarget().

TSInfo

SelectionDAGTargetInfo llvm::M68kSubtarget::TSInfo

protected

Definition at line 66 of file M68kSubtarget.h.

Referenced by getSelectionDAGInfo().

UserReservedRegister

std::bitset<M68k::NUM_TARGET_REGS> llvm::M68kSubtarget::UserReservedRegister

protected

Definition at line 57 of file M68kSubtarget.h.

Referenced by isRegisterReservedByUser().

UseSmallSection

bool llvm::M68kSubtarget::UseSmallSection = true

protected

Small section is used.

Definition at line 62 of file M68kSubtarget.h.

Referenced by useSmallSection().

---

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

• lib/Target/M68k/M68kSubtarget.h
• lib/Target/M68k/M68kSubtarget.cpp