X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FArgument.h;h=23d1a083482499ccbb064abc3778282e94ac4260;hb=fc82fabe00b0b820e3c0d7fc9e289bace0295f11;hp=3c38cdea037137f66b99ede2edc5cf12b5b0b181;hpb=0d1e40728d668085257b78657b381e1f13d77d52;p=oota-llvm.git

diff --git a/include/llvm/Argument.h b/include/llvm/Argument.h
index 3c38cdea037..23d1a083482 100644
--- a/include/llvm/Argument.h
+++ b/include/llvm/Argument.h
@@ -1,14 +1,13 @@
 //===-- llvm/Argument.h - Definition of the Argument class ------*- C++ -*-===//
-// 
+//
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
-// 
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
 //===----------------------------------------------------------------------===//
 //
-// This file defines the Argument class, which represents an incoming formal
-// argument to a Function.
+// This file declares the Argument class. 
 //
 //===----------------------------------------------------------------------===//
 
@@ -19,44 +18,68 @@
 
 namespace llvm {
 
-template<typename SC> struct ilist_traits;
-template<typename ValueSubClass, typename ItemParentClass, typename SymTabClass,
-         typename SubClass> class SymbolTableListTraits;
+template<typename ValueSubClass, typename ItemParentClass>
+  class SymbolTableListTraits;
 
+/// A class to represent an incoming formal argument to a Function. An argument
+/// is a very simple Value. It is essentially a named (optional) type. When used
+/// in the body of a function, it represents the value of the actual argument
+/// the function was called with.
+/// @brief LLVM Argument representation  
 class Argument : public Value {  // Defined in the Function.cpp file
   Function *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,
-                                     ilist_traits<Argument> >;
+  friend class SymbolTableListTraits<Argument, Function>;
   void setParent(Function *parent);
 
 public:
   /// 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);
+  explicit Argument(const Type *Ty, const std::string &Name = "",
+                    Function *F = 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; }
 
+  /// getArgNo - Return the index of this formal argument in its containing
+  /// function.  For example in "void foo(int a, float b)" a is 0 and b is 1. 
+  unsigned getArgNo() const;
+  
+  /// hasByValAttr - Return true if this argument has the byval attribute on it
+  /// in its containing function.
+  bool hasByValAttr() const;
+
+  /// hasNoAliasAttr - Return true if this argument has the noalias attribute on
+  /// it in its containing function.
+  bool hasNoAliasAttr() const;
+  
+  /// hasSRetAttr - Return true if this argument has the sret attribute on it in
+  /// its containing function.
+  bool hasStructRetAttr() const;
+  
   virtual void print(std::ostream &OS) const;
+  void print(std::ostream *OS) const {
+    if (OS) print(*OS);
+  }
 
   /// 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;
+    return V->getValueID() == ArgumentVal;
   }
+  
+private:
+  // 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; }
 };
 
 } // End llvm namespace