95 lines
3.1 KiB
C++
95 lines
3.1 KiB
C++
//===- llvm/GlobalIndirectSymbol.h - GlobalIndirectSymbol class -*- C++ -*-===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file contains the declaration of the GlobalIndirectSymbol class, which
|
|
// is a base class for GlobalAlias and GlobalIFunc. It contains all common code
|
|
// for aliases and ifuncs.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_IR_GLOBALINDIRECTSYMBOL_H
|
|
#define LLVM_IR_GLOBALINDIRECTSYMBOL_H
|
|
|
|
#include "llvm/IR/GlobalObject.h"
|
|
#include "llvm/IR/GlobalValue.h"
|
|
#include "llvm/IR/OperandTraits.h"
|
|
#include "llvm/IR/User.h"
|
|
#include "llvm/IR/Value.h"
|
|
#include "llvm/Support/Casting.h"
|
|
#include <cstddef>
|
|
|
|
namespace llvm {
|
|
|
|
class GlobalIndirectSymbol : public GlobalValue {
|
|
protected:
|
|
GlobalIndirectSymbol(Type *Ty, ValueTy VTy, unsigned AddressSpace,
|
|
LinkageTypes Linkage, const Twine &Name, Constant *Symbol);
|
|
|
|
public:
|
|
GlobalIndirectSymbol(const GlobalIndirectSymbol &) = delete;
|
|
GlobalIndirectSymbol &operator=(const GlobalIndirectSymbol &) = delete;
|
|
|
|
// allocate space for exactly one operand
|
|
void *operator new(size_t s) {
|
|
return User::operator new(s, 1);
|
|
}
|
|
|
|
/// Provide fast operand accessors
|
|
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Constant);
|
|
|
|
void copyAttributesFrom(const GlobalValue *Src) {
|
|
GlobalValue::copyAttributesFrom(Src);
|
|
}
|
|
|
|
/// These methods set and retrieve indirect symbol.
|
|
void setIndirectSymbol(Constant *Symbol) {
|
|
setOperand(0, Symbol);
|
|
}
|
|
const Constant *getIndirectSymbol() const {
|
|
return getOperand(0);
|
|
}
|
|
Constant *getIndirectSymbol() {
|
|
return const_cast<Constant *>(
|
|
static_cast<const GlobalIndirectSymbol *>(this)->getIndirectSymbol());
|
|
}
|
|
|
|
const GlobalObject *getBaseObject() const;
|
|
GlobalObject *getBaseObject() {
|
|
return const_cast<GlobalObject *>(
|
|
static_cast<const GlobalIndirectSymbol *>(this)->getBaseObject());
|
|
}
|
|
|
|
const GlobalObject *getBaseObject(const DataLayout &DL, APInt &Offset) const {
|
|
return dyn_cast<GlobalObject>(
|
|
getIndirectSymbol()->stripAndAccumulateInBoundsConstantOffsets(DL,
|
|
Offset));
|
|
}
|
|
GlobalObject *getBaseObject(const DataLayout &DL, APInt &Offset) {
|
|
return const_cast<GlobalObject *>(
|
|
static_cast<const GlobalIndirectSymbol *>(this)
|
|
->getBaseObject(DL, Offset));
|
|
}
|
|
|
|
// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static bool classof(const Value *V) {
|
|
return V->getValueID() == Value::GlobalAliasVal ||
|
|
V->getValueID() == Value::GlobalIFuncVal;
|
|
}
|
|
};
|
|
|
|
template <>
|
|
struct OperandTraits<GlobalIndirectSymbol> :
|
|
public FixedNumOperandTraits<GlobalIndirectSymbol, 1> {
|
|
};
|
|
|
|
DEFINE_TRANSPARENT_OPERAND_ACCESSORS(GlobalIndirectSymbol, Constant)
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif // LLVM_IR_GLOBALINDIRECTSYMBOL_H
|