public:
/// @brief An enumeration for the kinds of linkage for global values.
enum LinkageTypes {
- ExternalLinkage, ///< Externally visible function
+ ExternalLinkage = 0,///< Externally visible function
LinkOnceLinkage, ///< Keep one copy of function when linking (inline)
WeakLinkage, ///< Keep one copy of named function when linking (weak)
AppendingLinkage, ///< Special purpose, only applies to global arrays
/// @brief An enumeration for the kinds of visibility of global values.
enum VisibilityTypes {
- DefaultVisibility, ///< The GV is visible
- HiddenVisibility ///< The GV is hidden
+ DefaultVisibility = 0, ///< The GV is visible
+ HiddenVisibility ///< The GV is hidden
};
protected:
}
Module *Parent;
- LinkageTypes Linkage; // The linkage of this global
- VisibilityTypes Visibility; // The visibility style of this global
- unsigned Alignment; // Alignment of this symbol, must be power of two
- std::string Section; // Section to emit this into, empty mean default
+ // 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:
~GlobalValue() {
removeDeadConstantUsers(); // remove any dead constants using this.
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; }
/// 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; }
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;
}
};