llvm::MCValue Class Reference

This represents an "assembler immediate". More...

#include "llvm/MC/MCValue.h"

Public Member Functions
	MCValue ()=default
int64_t	getConstant () const
const MCSymbolRefExpr *	getSymA () const
const MCSymbolRefExpr *	getSymB () const
uint32_t	getRefKind () const
bool	isAbsolute () const
	Is this an absolute (as opposed to relocatable) value. More...
void	print (raw_ostream &OS) const
	Print the value to the stream OS. More...
void	dump () const
	Print the value to stderr. More...
MCSymbolRefExpr::VariantKind	getAccessVariant () const

Static Public Member Functions
static MCValue	get (const MCSymbolRefExpr *SymA, const MCSymbolRefExpr *SymB=nullptr, int64_t Val=0, uint32_t RefKind=0)
static MCValue	get (int64_t Val)

Detailed Description

This represents an "assembler immediate".

In its most general form, this can hold ":Kind:(SymbolA - SymbolB + imm64)". Not all targets supports relocations of this general form, but we need to represent this anyway.

In general both SymbolA and SymbolB will also have a modifier analogous to the top-level Kind. Current targets are not expected to make use of both though. The choice comes down to whether relocation modifiers apply to the closest symbol or the whole expression.

Note that this class must remain a simple POD value class, because we need it to live in unions etc.

Definition at line 40 of file MCValue.h.

Constructor & Destructor Documentation

MCValue()

llvm::MCValue::MCValue ( )

default

Member Function Documentation

dump()

LLVM_DUMP_METHOD void MCValue::dump

(

)

const

Print the value to stderr.

Definition at line 42 of file MCValue.cpp.

References llvm::dbgs(), and print().

Referenced by isAbsolute().

get() [1/2]

static MCValue llvm::MCValue::get ( const MCSymbolRefExpr *  SymA, const MCSymbolRefExpr *  SymB = nullptr, int64_t  Val = 0, uint32_t  RefKind = 0  )

inlinestatic

Definition at line 63 of file MCValue.h.

Referenced by llvm::LanaiMCExpr::evaluateAsRelocatableImpl(), llvm::AVRMCExpr::evaluateAsRelocatableImpl(), llvm::MCExpr::evaluateAsRelocatableImpl(), llvm::MipsMCExpr::evaluateAsRelocatableImpl(), llvm::PPCMCExpr::evaluateAsRelocatableImpl(), llvm::AArch64MCExpr::evaluateAsRelocatableImpl(), and llvm::RISCVMCExpr::getPCRelHiFixup().

get() [2/2]

static MCValue llvm::MCValue::get ( int64_t  Val )

inlinestatic

Definition at line 74 of file MCValue.h.

getAccessVariant()

MCSymbolRefExpr::VariantKind MCValue::getAccessVariant

(

)

const

Definition at line 47 of file MCValue.cpp.

References B, llvm::MCSymbolRefExpr::getKind(), getSymA(), getSymB(), Kind, llvm_unreachable, llvm::MCSymbolRefExpr::VK_None, and llvm::MCSymbolRefExpr::VK_WEAKREF.

Referenced by getAccessVariant(), getPLTReloc(), llvm::AVRELFObjectWriter::getRelocType(), getRelocType32(), and isAbsolute().

getConstant()

int64_t llvm::MCValue::getConstant ( ) const

inline

Definition at line 47 of file MCValue.h.

Referenced by canGoAfterDWARF(), canUseLocalRelocation(), encodeBase64StringEntry(), llvm::AVRMCExpr::evaluateAsConstant(), llvm::RISCVMCExpr::evaluateAsConstant(), llvm::PPCMCExpr::evaluateAsConstant(), llvm::LanaiMCExpr::evaluateAsRelocatableImpl(), llvm::AVRMCExpr::evaluateAsRelocatableImpl(), llvm::MCExpr::evaluateAsRelocatableImpl(), llvm::MipsMCExpr::evaluateAsRelocatableImpl(), llvm::PPCMCExpr::evaluateAsRelocatableImpl(), llvm::AArch64MCExpr::evaluateAsRelocatableImpl(), getARMFixupKindMachOInfo(), llvm::MCAssembler::getAtom(), getFixupKindLog2Size(), llvm::X86_64MachoTargetObjectFile::getIndirectSymViaGOTPCRel(), llvm::AArch64_MachoTargetObjectFile::getIndirectSymViaGOTPCRel(), llvm::TargetLoweringObjectFileMachO::getIndirectSymViaGOTPCRel(), llvm::RISCVMCExpr::getPCRelHiFixup(), llvm::MachObjectWriter::getSymbolAddress(), getSymbolOffsetImpl(), handleIndirectSymViaGOTPCRel(), incrementLoc(), isShiftedUIntAtAnyPosition(), isWeak(), and print().

getRefKind()

uint32_t llvm::MCValue::getRefKind ( ) const

inline

Definition at line 50 of file MCValue.h.

Referenced by adjustFixupValue(), llvm::MipsMCExpr::evaluateAsRelocatableImpl(), isNonILP32reloc(), llvm::MCAssembler::isThumbFunc(), and print().

getSymA()

const MCSymbolRefExpr* llvm::MCValue::getSymA ( ) const

inline

Definition at line 48 of file MCValue.h.

Referenced by llvm::AVRAsmBackend::adjustFixupValue(), llvm::ARMAsmBackend::adjustFixupValue(), canGoAfterDWARF(), canUseLocalRelocation(), encodeBase64StringEntry(), llvm::LanaiMCExpr::evaluateAsRelocatableImpl(), llvm::AVRMCExpr::evaluateAsRelocatableImpl(), llvm::MCExpr::evaluateAsRelocatableImpl(), llvm::RISCVMCExpr::evaluateAsRelocatableImpl(), llvm::MipsMCExpr::evaluateAsRelocatableImpl(), llvm::PPCMCExpr::evaluateAsRelocatableImpl(), llvm::AArch64MCExpr::evaluateAsRelocatableImpl(), llvm::MCAssembler::Finish(), getAccessVariant(), getARMFixupKindMachOInfo(), llvm::MCAssembler::getAtom(), llvm::MCAsmLayout::getBaseSymbol(), getFixupKindLog2Size(), getFixupKindNumBytes(), getFixupOffset(), llvm::RISCVMCExpr::getPCRelHiFixup(), getRelocType(), llvm::MachObjectWriter::getSymbolAddress(), getSymbolOffsetImpl(), handleIndirectSymViaGOTPCRel(), incrementLoc(), IsEventType(), IsFunctionType(), IsGlobalType(), isNonILP32reloc(), isShiftedUIntAtAnyPosition(), llvm::MCAssembler::isThumbFunc(), isWeak(), print(), and llvm::ARMAsmBackend::shouldForceRelocation().

getSymB()

const MCSymbolRefExpr* llvm::MCValue::getSymB ( ) const

inline

Definition at line 49 of file MCValue.h.

Referenced by canGoAfterDWARF(), canUseLocalRelocation(), encodeBase64StringEntry(), llvm::LanaiMCExpr::evaluateAsRelocatableImpl(), llvm::AVRMCExpr::evaluateAsRelocatableImpl(), llvm::MCExpr::evaluateAsRelocatableImpl(), llvm::RISCVMCExpr::evaluateAsRelocatableImpl(), llvm::MipsMCExpr::evaluateAsRelocatableImpl(), llvm::PPCMCExpr::evaluateAsRelocatableImpl(), llvm::AArch64MCExpr::evaluateAsRelocatableImpl(), getAccessVariant(), getARMFixupKindMachOInfo(), llvm::MCAssembler::getAtom(), llvm::MCAsmLayout::getBaseSymbol(), getFixupKindLog2Size(), getFixupOffset(), llvm::TargetLoweringObjectFileMachO::getIndirectSymViaGOTPCRel(), llvm::MachObjectWriter::getSymbolAddress(), getSymbolOffsetImpl(), handleIndirectSymViaGOTPCRel(), incrementLoc(), isNonILP32reloc(), isShiftedUIntAtAnyPosition(), llvm::MCAssembler::isThumbFunc(), isWeak(), and print().

isAbsolute()

bool llvm::MCValue::isAbsolute ( ) const

inline

Is this an absolute (as opposed to relocatable) value.

Definition at line 53 of file MCValue.h.

References dump(), getAccessVariant(), and print().

Referenced by canUseLocalRelocation(), llvm::AVRMCExpr::evaluateAsConstant(), llvm::RISCVMCExpr::evaluateAsConstant(), llvm::PPCMCExpr::evaluateAsConstant(), llvm::AVRMCExpr::evaluateAsRelocatableImpl(), llvm::MipsMCExpr::evaluateAsRelocatableImpl(), llvm::PPCMCExpr::evaluateAsRelocatableImpl(), getARMFixupKindMachOInfo(), llvm::MCAssembler::getAtom(), getFixupKindLog2Size(), getFixupOffset(), getRelocType(), handleIndirectSymViaGOTPCRel(), and print().

print()

void MCValue::print

(

raw_ostream &

OS

)

const

Print the value to the stream OS.

Definition at line 19 of file MCValue.cpp.

References getConstant(), getRefKind(), getSymA(), getSymB(), and isAbsolute().

Referenced by dump(), getAccessVariant(), and isAbsolute().

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

• include/llvm/MC/MCValue.h
• lib/MC/MCValue.cpp