llvm::MCUnaryExpr Class Reference

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	evaluateAsAbsolute (int64_t &Res, const MCAsmLayout &Layout, 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	evaluateAsAbsolute (int64_t &Res, const MCAsmLayout &Layout) const
bool	evaluateKnownAbsolute (int64_t &Res, const MCAsmLayout &Layout) const
bool	evaluateAsRelocatable (MCValue &Res, const MCAsmLayout *Layout, const MCFixup *Fixup) const
	Try to evaluate the expression to a relocatable value, i.e.
bool	evaluateAsValue (MCValue &Res, const MCAsmLayout &Layout) 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 MCAsmLayout *Layout, const MCFixup *Fixup, const SectionAddrMap *Addrs, bool InSet) const
unsigned	getSubclassData () const

Detailed Description

Unary assembler expressions.

Definition at line 425 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 427 of file MCExpr.h.

Member Function Documentation

classof()

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

inlinestatic

Definition at line 475 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 189 of file MCExpr.cpp.

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

createLNot()

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

inlinestatic

Definition at line 447 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 451 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 455 of file MCExpr.h.

References create(), and Not.

createPlus()

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

inlinestatic

Definition at line 459 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 468 of file MCExpr.h.

References llvm::MCExpr::getSubclassData().

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

getSubExpr()

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

inline

Get the child of this unary expression.

Definition at line 471 of file MCExpr.h.

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

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

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