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 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 432 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 434 of file MCExpr.h.

Member Function Documentation

classof()

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

inlinestatic

Definition at line 482 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 188 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 454 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 458 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 462 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 466 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 475 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 478 of file MCExpr.h.

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