X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FValue.h;h=f8eceb7ec05aac2f43a6fcae08acd175107ede89;hb=87944916a4764dabc2f89cbec0a6c7e439c28530;hp=004a8ff89e16176d9f6e7e31a8394595778683ef;hpb=356b79320b053b77562b47c076c753ab4c4d60d7;p=oota-llvm.git

diff --git a/include/llvm/Value.h b/include/llvm/Value.h
index 004a8ff89e1..f8eceb7ec05 100644
--- a/include/llvm/Value.h
+++ b/include/llvm/Value.h
@@ -10,10 +10,11 @@
 #ifndef LLVM_VALUE_H
 #define LLVM_VALUE_H
 
-#include <vector>
 #include "llvm/Annotation.h"
 #include "llvm/AbstractTypeUser.h"
 #include "Support/Casting.h"
+#include <iostream>
+#include <vector>
 
 class User;
 class Type;
@@ -25,13 +26,14 @@ class GlobalValue;
 class Function;
 class GlobalVariable;
 class SymbolTable;
-template<class ValueSubclass, class ItemParentType, class SymTabType> 
-  class ValueHolder;
 
 //===----------------------------------------------------------------------===//
 //                                 Value Class
 //===----------------------------------------------------------------------===//
 
+/// Value - The base class of all values computed by a program that may be used
+/// as operands to other values.
+///
 class Value : public Annotable,         // Values are annotable
 	      public AbstractTypeUser { // Values use potentially abstract types
 public:
@@ -51,20 +53,22 @@ private:
   PATypeHandle<Type> Ty;
   ValueTy VTy;
 
+  void operator=(const Value &);     // Do not implement
   Value(const Value &);              // Do not implement
-protected:
-  inline void setType(const Type *ty) { Ty = ty; }
 public:
   Value(const Type *Ty, ValueTy vty, const std::string &name = "");
   virtual ~Value();
   
-  // Support for debugging 
+  /// dump - Support for debugging, callable in GDB: V->dump()
+  //
   void dump() const;
 
-  // Implement operator<< on Value...
+  /// print - Implement operator<< on Value...
+  ///
   virtual void print(std::ostream &O) const = 0;
   
-  // All values can potentially be typed
+  /// All values are typed, get the type of this value.
+  ///
   inline const Type *getType() const { return Ty; }
   
   // All values can potentially be named...
@@ -75,27 +79,20 @@ public:
     Name = name;
   }
   
-  // Methods for determining the subtype of this Value.  The getValueType()
-  // method returns the type of the value directly.  The cast*() methods are
-  // equivalent to using dynamic_cast<>... if the cast is successful, this is
-  // returned, otherwise you get a null pointer.
-  //
-  // The family of functions Val->cast<type>Asserting() is used in the same
-  // way as the Val->cast<type>() instructions, but they assert the expected
-  // type instead of checking it at runtime.
-  //
+  /// getValueType - Return the immediate subclass of this Value.
+  ///
   inline ValueTy getValueType() const { return VTy; }
   
-  // replaceAllUsesWith - Go through the uses list for this definition and make
-  // each use point to "D" instead of "this".  After this completes, 'this's 
-  // use list should be empty.
-  //
-  void replaceAllUsesWith(Value *D);
-
-  // refineAbstractType - This function is implemented because we use
-  // potentially abstract types, and these types may be resolved to more
-  // concrete types after we are constructed.
-  //
+  /// replaceAllUsesWith - Go through the uses list for this definition and make
+  /// each use point to "V" instead of "this".  After this completes, 'this's 
+  /// use list is guaranteed to be empty.
+  ///
+  void replaceAllUsesWith(Value *V);
+
+  /// refineAbstractType - This function is implemented because we use
+  /// potentially abstract types, and these types may be resolved to more
+  /// concrete types after we are constructed.
+  ///
   virtual void refineAbstractType(const DerivedType *OldTy, const Type *NewTy);
   
   //----------------------------------------------------------------------
@@ -128,6 +125,11 @@ inline std::ostream &operator<<(std::ostream &OS, const Value *V) {
   return OS;
 }
 
+inline std::ostream &operator<<(std::ostream &OS, const Value &V) {
+  V.print(OS);
+  return OS;
+}
+
 
 //===----------------------------------------------------------------------===//
 //                                 UseTy Class
@@ -178,61 +180,46 @@ public:
 
 typedef UseTy<Value> Use;    // Provide Use as a common UseTy type
 
-// Provide a specialization of real_type to work with use's... to make them a
-// bit more transparent.
-//
-template <class X> class real_type <class UseTy<X> > { typedef X *Type; };
-
+template<typename From> struct simplify_type<UseTy<From> > {
+  typedef typename simplify_type<From*>::SimpleType SimpleType;
+  
+  static SimpleType getSimplifiedValue(const UseTy<From> &Val) {
+    return (SimpleType)Val.get();
+  }
+};
+template<typename From> struct simplify_type<const UseTy<From> > {
+  typedef typename simplify_type<From*>::SimpleType SimpleType;
+  
+  static SimpleType getSimplifiedValue(const UseTy<From> &Val) {
+    return (SimpleType)Val.get();
+  }
+};
 
 // isa - Provide some specializations of isa so that we don't have to include
 // the subtype header files to test to see if the value is a subclass...
 //
-template <> inline bool isa<Type, const Value*>(const Value *Val) { 
-  return Val->getValueType() == Value::TypeVal;
-}
-template <> inline bool isa<Type, Value*>(Value *Val) { 
-  return Val->getValueType() == Value::TypeVal;
-}
-template <> inline bool isa<Constant, const Value*>(const Value *Val) { 
-  return Val->getValueType() == Value::ConstantVal; 
+template <> inline bool isa_impl<Type, Value>(const Value &Val) { 
+  return Val.getValueType() == Value::TypeVal;
 }
-template <> inline bool isa<Constant, Value*>(Value *Val) { 
-  return Val->getValueType() == Value::ConstantVal; 
+template <> inline bool isa_impl<Constant, Value>(const Value &Val) { 
+  return Val.getValueType() == Value::ConstantVal; 
 }
-template <> inline bool isa<Argument, const Value*>(const Value *Val) { 
-  return Val->getValueType() == Value::ArgumentVal;
+template <> inline bool isa_impl<Argument, Value>(const Value &Val) { 
+  return Val.getValueType() == Value::ArgumentVal;
 }
-template <> inline bool isa<Argument, Value*>(Value *Val) { 
-  return Val->getValueType() == Value::ArgumentVal;
+template <> inline bool isa_impl<Instruction, Value>(const Value &Val) { 
+  return Val.getValueType() == Value::InstructionVal;
 }
-template <> inline bool isa<Instruction, const Value*>(const Value *Val) { 
-  return Val->getValueType() == Value::InstructionVal;
+template <> inline bool isa_impl<BasicBlock, Value>(const Value &Val) { 
+  return Val.getValueType() == Value::BasicBlockVal;
 }
-template <> inline bool isa<Instruction, Value*>(Value *Val) { 
-  return Val->getValueType() == Value::InstructionVal;
+template <> inline bool isa_impl<Function, Value>(const Value &Val) { 
+  return Val.getValueType() == Value::FunctionVal;
 }
-template <> inline bool isa<BasicBlock, const Value*>(const Value *Val) { 
-  return Val->getValueType() == Value::BasicBlockVal;
-}
-template <> inline bool isa<BasicBlock, Value*>(Value *Val) { 
-  return Val->getValueType() == Value::BasicBlockVal;
-}
-template <> inline bool isa<Function, const Value*>(const Value *Val) { 
-  return Val->getValueType() == Value::FunctionVal;
-}
-template <> inline bool isa<Function, Value*>(Value *Val) { 
-  return Val->getValueType() == Value::FunctionVal;
-}
-template <> inline bool isa<GlobalVariable, const Value*>(const Value *Val) { 
-  return Val->getValueType() == Value::GlobalVariableVal;
-}
-template <> inline bool isa<GlobalVariable, Value*>(Value *Val) { 
-  return Val->getValueType() == Value::GlobalVariableVal;
-}
-template <> inline bool isa<GlobalValue, const Value*>(const Value *Val) { 
-  return isa<GlobalVariable>(Val) || isa<Function>(Val);
+template <> inline bool isa_impl<GlobalVariable, Value>(const Value &Val) { 
+  return Val.getValueType() == Value::GlobalVariableVal;
 }
-template <> inline bool isa<GlobalValue, Value*>(Value *Val) { 
+template <> inline bool isa_impl<GlobalValue, Value>(const Value &Val) { 
   return isa<GlobalVariable>(Val) || isa<Function>(Val);
 }