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

diff --git a/include/llvm/GlobalValue.h b/include/llvm/GlobalValue.h
index 9dab3f82f082b72ac04615972aca74f8811036b2..317aa486a4070d9b2cf84a630796c3d2ff552b0a 100644 (file)
--- a/include/llvm/GlobalValue.h
+++ b/include/llvm/GlobalValue.h
@@ -55,8 +55,10 @@ protected:
   }
 
   Module *Parent;
-  LinkageTypes Linkage : 4;   // The linkage of this global
-  VisibilityTypes Visibility : 1;  // The visibility style of this global
+  // 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 Alignment : 16;    // Alignment of this symbol, must be power of two
   std::string Section;        // Section to emit this into, empty mean default
 public:
@@ -70,7 +72,7 @@ public:
     Alignment = Align;
   }
 
-  VisibilityTypes getVisibility() const { return Visibility; }
+  VisibilityTypes getVisibility() const { return (VisibilityTypes)Visibility; }
   bool hasHiddenVisibility() const { return Visibility == HiddenVisibility; }
   void setVisibility(VisibilityTypes V) { Visibility = V; }
   
@@ -119,6 +121,16 @@ public:
   /// value is outside of the current translation unit...
   virtual bool isDeclaration() const = 0;
 
+  /// removeFromParent - This method unlinks 'this' from the containing module,
+  /// but does not delete it.
+  ///
+  virtual void removeFromParent() = 0;
+
+  /// eraseFromParent - This method unlinks 'this' from the containing module
+  /// and deletes it.
+  ///
+  virtual void eraseFromParent() = 0;
+
   /// getParent - Get the module that this global value is contained inside
   /// of...
   inline Module *getParent() { return Parent; }
@@ -134,7 +146,8 @@ public:
   static inline bool classof(const GlobalValue *) { return true; }
   static inline bool classof(const Value *V) {
     return V->getValueID() == Value::FunctionVal ||
-           V->getValueID() == Value::GlobalVariableVal;
+           V->getValueID() == Value::GlobalVariableVal ||
+           V->getValueID() == Value::GlobalAliasVal;
   }
 };