/usr/include/llvm-3.4/llvm/IR/GlobalAlias.h is in llvm-3.4-dev 1:3.4-1ubuntu3.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 | //===-------- llvm/GlobalAlias.h - GlobalAlias class ------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains the declaration of the GlobalAlias class, which
// represents a single function or variable alias in the IR.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_IR_GLOBALALIAS_H
#define LLVM_IR_GLOBALALIAS_H
#include "llvm/ADT/Twine.h"
#include "llvm/ADT/ilist_node.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/IR/OperandTraits.h"
namespace llvm {
class Module;
template<typename ValueSubClass, typename ItemParentClass>
class SymbolTableListTraits;
class GlobalAlias : public GlobalValue, public ilist_node<GlobalAlias> {
friend class SymbolTableListTraits<GlobalAlias, Module>;
void operator=(const GlobalAlias &) LLVM_DELETED_FUNCTION;
GlobalAlias(const GlobalAlias &) LLVM_DELETED_FUNCTION;
void setParent(Module *parent);
public:
// allocate space for exactly one operand
void *operator new(size_t s) {
return User::operator new(s, 1);
}
/// GlobalAlias ctor - If a parent module is specified, the alias is
/// automatically inserted into the end of the specified module's alias list.
GlobalAlias(Type *Ty, LinkageTypes Linkage, const Twine &Name = "",
Constant* Aliasee = 0, Module *Parent = 0);
/// Provide fast operand accessors
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Constant);
/// removeFromParent - This method unlinks 'this' from the containing module,
/// but does not delete it.
///
virtual void removeFromParent();
/// eraseFromParent - This method unlinks 'this' from the containing module
/// and deletes it.
///
virtual void eraseFromParent();
/// set/getAliasee - These methods retrive and set alias target.
void setAliasee(Constant *GV);
const Constant *getAliasee() const {
return getOperand(0);
}
Constant *getAliasee() {
return getOperand(0);
}
/// getAliasedGlobal() - Aliasee can be either global or bitcast of
/// global. This method retrives the global for both aliasee flavours.
GlobalValue *getAliasedGlobal();
const GlobalValue *getAliasedGlobal() const {
return const_cast<GlobalAlias *>(this)->getAliasedGlobal();
}
/// resolveAliasedGlobal() - This method tries to ultimately resolve the alias
/// by going through the aliasing chain and trying to find the very last
/// global. Returns NULL if a cycle was found. If stopOnWeak is false, then
/// the whole chain aliasing chain is traversed, otherwise - only strong
/// aliases.
GlobalValue *resolveAliasedGlobal(bool stopOnWeak = true);
const GlobalValue *resolveAliasedGlobal(bool stopOnWeak = true) const {
return const_cast<GlobalAlias *>(this)->resolveAliasedGlobal(stopOnWeak);
}
static bool isValidLinkage(LinkageTypes L) {
return isExternalLinkage(L) || isLocalLinkage(L) ||
isWeakLinkage(L) || isLinkOnceLinkage(L);
}
// Methods for support type inquiry through isa, cast, and dyn_cast:
static inline bool classof(const Value *V) {
return V->getValueID() == Value::GlobalAliasVal;
}
};
template <>
struct OperandTraits<GlobalAlias> :
public FixedNumOperandTraits<GlobalAlias, 1> {
};
DEFINE_TRANSPARENT_OPERAND_ACCESSORS(GlobalAlias, Constant)
} // End llvm namespace
#endif
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