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 ,   Specifier , 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
LLVM_ABI void	dump () const
LLVM_ABI bool	evaluateAsAbsolute (int64_t &Res) const
	Try to evaluate the expression to an absolute value.
LLVM_ABI bool	evaluateAsAbsolute (int64_t &Res, const MCAssembler &Asm) const
LLVM_ABI bool	evaluateAsAbsolute (int64_t &Res, const MCAssembler *Asm) const
LLVM_ABI bool	evaluateKnownAbsolute (int64_t &Res, const MCAssembler &Asm) const
	Aggressive variant of evaluateAsRelocatable when relocations are unavailable (e.g.
LLVM_ABI bool	evaluateAsRelocatable (MCValue &Res, const MCAssembler *Asm) const
	Try to evaluate the expression to a relocatable value, i.e.
LLVM_ABI 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.
LLVM_ABI 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 LLVM_ABI 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())
Static Public Member Functions inherited from llvm::MCExpr
static LLVM_ABI bool	evaluateSymbolicAdd (const MCAssembler *, bool, const MCValue &, const MCValue &, MCValue &)

Additional Inherited Members
Protected Types inherited from llvm::MCExpr
using	Spec = uint16_t
Protected Member Functions inherited from llvm::MCExpr
	MCExpr (ExprKind Kind, SMLoc Loc, unsigned SubclassData=0)
LLVM_ABI bool	evaluateAsRelocatableImpl (MCValue &Res, const MCAssembler *Asm, bool InSet) const
unsigned	getSubclassData () const

Detailed Description

Unary assembler expressions.

Definition at line 243 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 245 of file MCExpr.h.

Member Function Documentation

classof()

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

inlinestatic

Definition at line 293 of file MCExpr.h.

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

create()

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

static

Definition at line 207 of file MCExpr.cpp.

References llvm::MCExpr::MCExpr(), and Opc.

Referenced by llvm::MCAsmParser::applySpecifier(), createLNot(), createMinus(), createNot(), createPlus(), and tryFoldHelper().

createLNot()

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

inlinestatic

Definition at line 265 of file MCExpr.h.

References create(), LNot, and llvm::MCExpr::MCExpr().

createMinus()

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

inlinestatic

Definition at line 269 of file MCExpr.h.

References create(), llvm::MCExpr::MCExpr(), and Minus.

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

createNot()

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

inlinestatic

Definition at line 273 of file MCExpr.h.

References create(), llvm::MCExpr::MCExpr(), and Not.

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

createPlus()

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

inlinestatic

Definition at line 277 of file MCExpr.h.

References create(), llvm::MCExpr::MCExpr(), and Plus.

getOpcode()

Opcode llvm::MCUnaryExpr::getOpcode ( ) const

inline

Get the kind of this unary expression.

Definition at line 286 of file MCExpr.h.

References llvm::MCExpr::getSubclassData().

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

getSubExpr()

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

inline

Get the child of this unary expression.

Definition at line 289 of file MCExpr.h.

References llvm::MCExpr::MCExpr().

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

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

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