X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FGlobalValue.h;h=bc0c0a79375327afea18eacc26644ab44ca84cca;hb=2d0d59380a0f22d32782fb9837b57ffc25c8d9f1;hp=014cdbe82af2dd6f9b9e55904be2898d559fc130;hpb=a80e1181b78183dc36ec6568559d38faa86981f0;p=oota-llvm.git

diff --git a/include/llvm/GlobalValue.h b/include/llvm/GlobalValue.h
index 014cdbe82af..bc0c0a79375 100644
--- a/include/llvm/GlobalValue.h
+++ b/include/llvm/GlobalValue.h
@@ -2,15 +2,16 @@
 //
 //                     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 is a common base class of all globally definable objects.  As such,
-// it is subclassed by GlobalVariable and by Function.  This is used because you
-// can do certain things with these global objects that you can't do to anything
-// else.  For example, use the address of one as a constant.
+// it is subclassed by GlobalVariable, GlobalAlias and by Function.  This is
+// used because you can do certain things with these global objects that you
+// can't do to anything else.  For example, use the address of one as a
+// constant.
 //
 //===----------------------------------------------------------------------===//
 
@@ -37,19 +38,21 @@ public:
     DLLImportLinkage,   ///< Function to be imported from DLL
     DLLExportLinkage,   ///< Function to be accessible from DLL
     ExternalWeakLinkage,///< ExternalWeak linkage description
-    GhostLinkage        ///< Stand-in functions for streaming fns from BC files    
+    GhostLinkage,       ///< Stand-in functions for streaming fns from BC files
+    CommonLinkage       ///< Tentative definitions
   };
 
   /// @brief An enumeration for the kinds of visibility of global values.
   enum VisibilityTypes {
     DefaultVisibility = 0,  ///< The GV is visible
-    HiddenVisibility        ///< The GV is hidden
+    HiddenVisibility,       ///< The GV is hidden
+    ProtectedVisibility     ///< The GV is protected
   };
 
 protected:
-  GlobalValue(const Type *Ty, ValueTy vty, Use *Ops, unsigned NumOps,
+  GlobalValue(const Type *ty, ValueTy vty, Use *Ops, unsigned NumOps,
               LinkageTypes linkage, const std::string &name = "")
-    : Constant(Ty, vty, Ops, NumOps), Parent(0),
+    : Constant(ty, vty, Ops, NumOps), Parent(0),
       Linkage(linkage), Visibility(DefaultVisibility), Alignment(0) {
     if (!name.empty()) setName(name);
   }
@@ -58,7 +61,7 @@ protected:
   // Note: VC++ treats enums as signed, so an extra bit is required to prevent
   // Linkage and Visibility from turning into negative values.
   LinkageTypes Linkage : 5;   // The linkage of this global
-  unsigned Visibility : 1;    // The visibility style of this global
+  unsigned Visibility : 2;    // The visibility style of this global
   unsigned Alignment : 16;    // Alignment of this symbol, must be power of two
   std::string Section;        // Section to emit this into, empty mean default
 public:
@@ -72,8 +75,11 @@ public:
     Alignment = Align;
   }
 
-  VisibilityTypes getVisibility() const { return (VisibilityTypes)Visibility; }
+  VisibilityTypes getVisibility() const { return VisibilityTypes(Visibility); }
   bool hasHiddenVisibility() const { return Visibility == HiddenVisibility; }
+  bool hasProtectedVisibility() const {
+    return Visibility == ProtectedVisibility;
+  }
   void setVisibility(VisibilityTypes V) { Visibility = V; }
   
   bool hasSection() const { return !Section.empty(); }
@@ -95,6 +101,7 @@ public:
   bool hasExternalLinkage()   const { return Linkage == ExternalLinkage; }
   bool hasLinkOnceLinkage()   const { return Linkage == LinkOnceLinkage; }
   bool hasWeakLinkage()       const { return Linkage == WeakLinkage; }
+  bool hasCommonLinkage()     const { return Linkage == CommonLinkage; }
   bool hasAppendingLinkage()  const { return Linkage == AppendingLinkage; }
   bool hasInternalLinkage()   const { return Linkage == InternalLinkage; }
   bool hasDLLImportLinkage()  const { return Linkage == DLLImportLinkage; }
@@ -103,12 +110,16 @@ public:
   void setLinkage(LinkageTypes LT) { Linkage = LT; }
   LinkageTypes getLinkage() const { return Linkage; }
 
-  /// hasNotBeenReadFromBytecode - If a module provider is being used to lazily
+  /// copyAttributesFrom - copy all additional attributes (those not needed to
+  /// create a GlobalValue) from the GlobalValue Src to this one.
+  virtual void copyAttributesFrom(const GlobalValue *Src);
+
+  /// hasNotBeenReadFromBitcode - If a module provider is being used to lazily
   /// stream in functions from disk, this method can be used to check to see if
   /// the function has been read in yet or not.  Unless you are working on the
   /// JIT or something else that streams stuff in lazily, you don't need to
   /// worry about this.
-  bool hasNotBeenReadFromBytecode() const { return Linkage == GhostLinkage; }
+  bool hasNotBeenReadFromBitcode() const { return Linkage == GhostLinkage; }
 
   /// Override from Constant class. No GlobalValue's are null values so this
   /// always returns false.