Add a 'normalize' method to the Triple class, which takes a mucked up

[oota-llvm.git] / include / llvm / GlobalAlias.h

diff --git a/include/llvm/GlobalAlias.h b/include/llvm/GlobalAlias.h
index b59537c9af4d70f4a631d4075810dc8d1d3edae3..9867c518c890ddc5b60845e6e24dafab42ed8d4a 100644 (file)
--- a/include/llvm/GlobalAlias.h
+++ b/include/llvm/GlobalAlias.h
@@ -16,43 +16,37 @@
 #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;
 class Constant;
-class PointerType;
 template<typename ValueSubClass, typename ItemParentClass>
   class SymbolTableListTraits;
 
-class GlobalAlias : public GlobalValue {
+class GlobalAlias : public GlobalValue, public ilist_node<GlobalAlias> {
   friend class SymbolTableListTraits<GlobalAlias, Module>;
   void operator=(const GlobalAlias &);     // Do not implement
   GlobalAlias(const GlobalAlias &);     // Do not implement
 
   void setParent(Module *parent);
 
-  GlobalAlias *Prev, *Next;
-  void setNext(GlobalAlias *N) { Next = N; }
-  void setPrev(GlobalAlias *N) { Prev = N; }
-
-  // getNext/Prev - Return the next or previous alias in the list.
-        GlobalAlias *getNext()       { return Next; }
-  const GlobalAlias *getNext() const { return Next; }
-        GlobalAlias *getPrev()       { return Prev; }
-  const GlobalAlias *getPrev() const { return Prev; }
-
-  Use Aliasee;
 public:
-  // allocate space for exactly zero operands
+  // allocate space for exactly one operand
   void *operator new(size_t s) {
-    return User::operator new(s, 0);
+    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(const Type *Ty, LinkageTypes Linkage, const std::string &Name = "",
+  GlobalAlias(const Type *Ty, LinkageTypes Linkage, const Twine &Name = "",
               Constant* Aliasee = 0, Module *Parent = 0);
 
+  /// Provide fast operand accessors
+  DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
+
   /// isDeclaration - Is this global variable lacking an initializer?  If so, 
   /// the global variable is defined in some other translation unit, and is thus
   /// only a declaration here.
@@ -61,15 +55,12 @@ public:
   /// removeFromParent - This method unlinks 'this' from the containing module,
   /// but does not delete it.
   ///
-  void removeFromParent();
+  virtual void removeFromParent();
 
   /// eraseFromParent - This method unlinks 'this' from the containing module
   /// and deletes it.
   ///
-  void eraseFromParent();
-
-  virtual void print(std::ostream &OS) const;
-  void print(std::ostream *OS) const { if (OS) print(*OS); }
+  virtual void eraseFromParent();
 
   /// set/getAliasee - These methods retrive and set alias target.
   void setAliasee(Constant* GV);
@@ -85,8 +76,10 @@ public:
 
   /// 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.
-  const GlobalValue* resolveAliasedGlobal() const;
+  /// 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 GlobalAlias *) { return true; }
@@ -95,6 +88,12 @@ public:
   }
 };
 
+template <>
+struct OperandTraits<GlobalAlias> : public FixedNumOperandTraits<1> {
+};
+
+DEFINE_TRANSPARENT_OPERAND_ACCESSORS(GlobalAlias, Value)
+
 } // End llvm namespace
 
 #endif