Unary assembler expressions. More...

#include "llvm/MC/MCExpr.h"

Inheritance diagram for llvm::MCUnaryExpr:

Public Types
enum	Opcode { LNot , Minus , Not , Plus }

Public Types inherited from llvm::MCExpr
enum	ExprKind : uint8_t { Binary , Constant , SymbolRef , Unary , Target }

Public Member Functions
Accessors
Opcode	getOpcode () const
	Get the kind of this unary expression.

const MCExpr *	getSubExpr () const
	Get the child of this unary expression.

Public Member Functions inherited from llvm::MCExpr
	MCExpr (const MCExpr &)=delete

MCExpr &	operator= (const MCExpr &)=delete

ExprKind	getKind () const

SMLoc	getLoc () const

void	print (raw_ostream &OS, const MCAsmInfo *MAI, bool InParens=false) const

void	dump () const

bool	isSymbolUsedInExpression (const MCSymbol *Sym) const
	Returns whether the given symbol is used anywhere in the expression or subexpressions.

bool	evaluateAsAbsolute (int64_t &Res, const MCAssembler &Asm, const SectionAddrMap &Addrs) const
	Try to evaluate the expression to an absolute value.

bool	evaluateAsAbsolute (int64_t &Res) const

bool	evaluateAsAbsolute (int64_t &Res, const MCAssembler &Asm) const

bool	evaluateAsAbsolute (int64_t &Res, const MCAssembler *Asm) const

bool	evaluateKnownAbsolute (int64_t &Res, const MCAssembler &Asm) const
	Aggressive variant of evaluateAsRelocatable when relocations are unavailable (e.g.

bool	evaluateAsRelocatable (MCValue &Res, const MCAssembler Asm, const MCFixup Fixup) const
	Try to evaluate the expression to a relocatable value, i.e.

bool	evaluateAsValue (MCValue &Res, const MCAssembler &Asm) const
	Try to evaluate the expression to the form (a - b + constant) where neither a nor b are variables.

MCFragment *	findAssociatedFragment () const
	Find the "associated section" for this expression, which is currently defined as the absolute section for constants, or otherwise the section associated with the first defined symbol in the expression.

Static Public Member Functions
static bool	classof (const MCExpr *E)

Construction
static const MCUnaryExpr *	create (Opcode Op, const MCExpr *Expr, MCContext &Ctx, SMLoc Loc=SMLoc())

static const MCUnaryExpr *	createLNot (const MCExpr *Expr, MCContext &Ctx, SMLoc Loc=SMLoc())

static const MCUnaryExpr *	createMinus (const MCExpr *Expr, MCContext &Ctx, SMLoc Loc=SMLoc())

static const MCUnaryExpr *	createNot (const MCExpr *Expr, MCContext &Ctx, SMLoc Loc=SMLoc())

static const MCUnaryExpr *	createPlus (const MCExpr *Expr, MCContext &Ctx, SMLoc Loc=SMLoc())

Additional Inherited Members
Protected Member Functions inherited from llvm::MCExpr
	MCExpr (ExprKind Kind, SMLoc Loc, unsigned SubclassData=0)

bool	evaluateAsRelocatableImpl (MCValue &Res, const MCAssembler Asm, const MCFixup Fixup, const SectionAddrMap *Addrs, bool InSet) const

unsigned	getSubclassData () const

Detailed Description

Unary assembler expressions.

Definition at line 437 of file MCExpr.h.

Member Enumeration Documentation

◆ Opcode

enum llvm::MCUnaryExpr::Opcode

Enumerator
LNot	Logical negation.
Minus	Unary minus.
Not	Bitwise negation.
Plus	Unary plus.

Definition at line 439 of file MCExpr.h.

Member Function Documentation

◆ classof()

static bool llvm::MCUnaryExpr::classof ( const MCExpr * E )

inlinestatic

Definition at line 487 of file MCExpr.h.

References E, and llvm::MCExpr::Unary.

◆ create()

const MCUnaryExpr * MCUnaryExpr::create	(	Opcode	Op,
		const MCExpr *	Expr,
		MCContext &	Ctx,
		SMLoc	Loc = `SMLoc()`
	)

static

Definition at line 217 of file MCExpr.cpp.

Referenced by createLNot(), createMinus(), createNot(), createPlus(), and tryFoldHelper().

◆ createLNot()

static const MCUnaryExpr * llvm::MCUnaryExpr::createLNot	(	const MCExpr *	Expr,
		MCContext &	Ctx,
		SMLoc	Loc = `SMLoc()`
	)

inlinestatic

Definition at line 459 of file MCExpr.h.

References create(), and LNot.

◆ createMinus()

static const MCUnaryExpr * llvm::MCUnaryExpr::createMinus	(	const MCExpr *	Expr,
		MCContext &	Ctx,
		SMLoc	Loc = `SMLoc()`
	)

inlinestatic

Definition at line 463 of file MCExpr.h.

References create(), and Minus.

Referenced by addNegOperand(), llvm::HexagonAsmPrinter::HexagonProcessInstruction(), llvm::MCExternalSymbolizer::tryAddingSymbolicOperand(), and llvm::AArch64ExternalSymbolizer::tryAddingSymbolicOperand().

◆ createNot()

static const MCUnaryExpr * llvm::MCUnaryExpr::createNot	(	const MCExpr *	Expr,
		MCContext &	Ctx,
		SMLoc	Loc = `SMLoc()`
	)

inlinestatic

Definition at line 467 of file MCExpr.h.

References create(), and Not.

Referenced by llvm::AMDGPU::MCKernelDescriptor::bits_set().

◆ createPlus()

static const MCUnaryExpr * llvm::MCUnaryExpr::createPlus	(	const MCExpr *	Expr,
		MCContext &	Ctx,
		SMLoc	Loc = `SMLoc()`
	)

inlinestatic

Definition at line 471 of file MCExpr.h.

References create(), and Plus.

◆ getOpcode()

Opcode llvm::MCUnaryExpr::getOpcode ( ) const

inline

Get the kind of this unary expression.

Definition at line 480 of file MCExpr.h.

References llvm::MCExpr::getSubclassData().

Referenced by llvm::MCExpr::evaluateAsRelocatableImpl(), llvm::MCExpr::print(), tryFoldHelper(), and unaryOpKnownBitsMapHelper().

◆ getSubExpr()

const MCExpr * llvm::MCUnaryExpr::getSubExpr ( ) const

inline

Get the child of this unary expression.

Definition at line 483 of file MCExpr.h.

Referenced by llvm::MCExpr::evaluateAsRelocatableImpl(), llvm::MCExpr::print(), tryFoldHelper(), and unaryOpKnownBitsMapHelper().

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

include/llvm/MC/MCExpr.h
lib/MC/MCExpr.cpp

Public Types

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ Opcode

Member Function Documentation

◆ classof()

◆ create()

◆ createLNot()

◆ createMinus()

◆ createNot()

◆ createPlus()

◆ getOpcode()

◆ getSubExpr()