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-rw-r--r--include/llvm/GlobalAlias.h93
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diff --git a/include/llvm/GlobalAlias.h b/include/llvm/GlobalAlias.h
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-//===-------- 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_GLOBAL_ALIAS_H
-#define LLVM_GLOBAL_ALIAS_H
-
-#include "llvm/GlobalValue.h"
-#include "llvm/OperandTraits.h"
-#include "llvm/ADT/ilist_node.h"
-#include "llvm/ADT/Twine.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.
- const GlobalValue *getAliasedGlobal() const;
-
- /// 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.
- const GlobalValue *resolveAliasedGlobal(bool stopOnWeak = true) const;
-
- // 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