Interface to target-specific routines that support machine code optimization.

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

diff --git a/include/llvm/Argument.h b/include/llvm/Argument.h
index cd05ca4d5bd6d025495abaa02e8ff7f92fb636b6..03690ea37e6c8e0d24b37b42251bccfa45447355 100644 (file)
--- a/include/llvm/Argument.h
+++ b/include/llvm/Argument.h
@@ -1,7 +1,7 @@
 //===-- llvm/Argument.h - Definition of the Argument class -------*- C++ -*--=//
 //
 // This file defines the Argument class, which represents and incoming formal
-// argument to a function.
+// argument to a Function.
 //
 //===----------------------------------------------------------------------===//
 
@@ -10,27 +10,38 @@
 
 #include "llvm/Value.h"
 
-class Argument : public Value {  // Defined in the InstrType.cpp file
+class Argument : public Value {  // Defined in the Function.cpp file
   Function *Parent;
 
-  friend class ValueHolder<Argument, Function, Function>;
-  inline void setParent(Function *parent) { Parent = parent; }
+  Argument *Prev, *Next; // Next and Prev links for our intrusive linked list
+  void setNext(Argument *N) { Next = N; }
+  void setPrev(Argument *N) { Prev = N; }
+  friend class SymbolTableListTraits<Argument, Function, Function>;
+  void setParent(Function *parent);
 
 public:
-  Argument(const Type *Ty, const std::string &Name = "") 
-    : Value(Ty, Value::ArgumentVal, Name) {
-    Parent = 0;
-  }
+  /// Argument ctor - If Function argument is specified, this argument is
+  /// inserted at the end of the argument list for the function.
+  ///
+  Argument(const Type *Ty, const std::string &Name = "", Function *F = 0);
 
-  // Specialize setName to handle symbol table majik...
+  /// setName - Specialize setName to handle symbol table majik...
   virtual void setName(const std::string &name, SymbolTable *ST = 0);
 
   inline const Function *getParent() const { return Parent; }
   inline       Function *getParent()       { return Parent; }
+ 
+  // getNext/Prev - Return the next or previous argument in the list.
+        Argument *getNext()       { return Next; }
+  const Argument *getNext() const { return Next; }
+        Argument *getPrev()       { return Prev; }
+  const Argument *getPrev() const { return Prev; }
 
   virtual void print(std::ostream &OS) const;
 
-  // Methods for support type inquiry through isa, cast, and dyn_cast:
+  /// classof - Methods for support type inquiry through isa, cast, and
+  /// dyn_cast:
+  ///
   static inline bool classof(const Argument *) { return true; }
   static inline bool classof(const Value *V) {
     return V->getValueType() == ArgumentVal;