llvm::MCValue Class Reference

#include <MCValue.h>

List of all members.

Public Member Functions
int64_t	getConstant () const
const MCSymbolRefExpr *	getSymA () const
const MCSymbolRefExpr *	getSymB () const
uint32_t	getRefKind () const
bool	isAbsolute () const
	isAbsolute - Is this an absolute (as opposed to relocatable) value.
void	print (raw_ostream &OS, const MCAsmInfo *MAI) const
	print - Print the value to the stream OS.
void	dump () const
	dump - Print the value to stderr.
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)

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Detailed Description

MCValue - 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.

In the general form, SymbolB can only be defined if SymbolA is, and both must be in the same (non-external) section. The latter constraint is not enforced, since a symbol's section may not be known at construction.

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

Definition at line 43 of file MCValue.h.

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Member Function Documentation

void MCValue::dump

(

)

const

dump - Print the value to stderr.

Definition at line 41 of file MCValue.cpp.

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

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

Definition at line 65 of file MCValue.h.

Referenced by llvm::MCExpr::EvaluateAsRelocatableImpl(), llvm::PPCMCExpr::EvaluateAsRelocatableImpl(), and llvm::AArch64MCExpr::EvaluateAsRelocatableImpl().

static MCValue llvm::MCValue::get

(

int64_t

Val

)

[inline, static]

Definition at line 77 of file MCValue.h.

MCSymbolRefExpr::VariantKind MCValue::getAccessVariant

(

)

const

Definition at line 46 of file MCValue.cpp.

References llvm::ARM_PROC::A, llvm::MCSymbolRefExpr::getKind(), getSymA(), getSymB(), llvm_unreachable, llvm::MCSymbolRefExpr::VK_None, and llvm::MCSymbolRefExpr::VK_WEAKREF.

Referenced by getAccessVariant().

int64_t llvm::MCValue::getConstant

(

)

const [inline]

Definition at line 49 of file MCValue.h.

Referenced by llvm::PPCMCExpr::EvaluateAsConstant(), llvm::PPCMCExpr::EvaluateAsRelocatableImpl(), llvm::AArch64MCExpr::EvaluateAsRelocatableImpl(), llvm::MachObjectWriter::getSymbolAddress(), getSymbolOffsetImpl(), and print().

uint32_t llvm::MCValue::getRefKind

(

)

const [inline]

Definition at line 52 of file MCValue.h.

Referenced by print().

const MCSymbolRefExpr* llvm::MCValue::getSymA

(

)

const [inline]

Definition at line 50 of file MCValue.h.

Referenced by llvm::MCExpr::EvaluateAsRelocatableImpl(), llvm::PPCMCExpr::EvaluateAsRelocatableImpl(), llvm::AArch64MCExpr::EvaluateAsRelocatableImpl(), getAccessVariant(), llvm::MCAsmLayout::getBaseSymbol(), getRelocType(), llvm::MachObjectWriter::getSymbolAddress(), getSymbolOffsetImpl(), llvm::MachObjectWriter::markAbsoluteVariableSymbols(), and print().

const MCSymbolRefExpr* llvm::MCValue::getSymB

(

)

const [inline]

Definition at line 51 of file MCValue.h.

Referenced by llvm::MCExpr::EvaluateAsRelocatableImpl(), llvm::PPCMCExpr::EvaluateAsRelocatableImpl(), llvm::AArch64MCExpr::EvaluateAsRelocatableImpl(), getAccessVariant(), llvm::MCAsmLayout::getBaseSymbol(), llvm::MachObjectWriter::getSymbolAddress(), getSymbolOffsetImpl(), llvm::MachObjectWriter::markAbsoluteVariableSymbols(), and print().

bool llvm::MCValue::isAbsolute

(

)

const [inline]

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

Definition at line 55 of file MCValue.h.

Referenced by evaluate(), llvm::PPCMCExpr::EvaluateAsConstant(), llvm::PPCMCExpr::EvaluateAsRelocatableImpl(), getRelocType(), and print().

void MCValue::print	(	raw_ostream &	OS,
		const MCAsmInfo *	MAI
	)		const

print - Print the value to the stream OS.

Definition at line 18 of file MCValue.cpp.

References getConstant(), getRefKind(), getSymA(), getSymB(), isAbsolute(), and llvm::MCExpr::print().

Referenced by dump().

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

• MCValue.h
• MCValue.cpp