LinkageTypes Linkage; // The linkage of this global
Module *Parent;
public:
- virtual ~GlobalValue();
+ ~GlobalValue() {
+ removeDeadConstantUsers(); // remove any dead constants using this.
+ }
/// If the usage is empty (except transitively dead constants), then this
/// global value can can be safely deleted since the destructor will
/// that want to check to see if a global is unused, but don't want to deal
/// with potentially dead constants hanging off of the globals.
///
- /// This function returns true if the global value is now dead. If all
- /// users of this global are not dead, this method may return false and
- /// leave some of them around.
- bool removeDeadConstantUsers();
+ /// This method tries to make the global dead. If it detects a user that
+ /// would prevent it from becoming completely dead, it gives up early,
+ /// potentially leaving some dead constant users around.
+ void removeDeadConstantUsers();
// Methods for support type inquiry through isa, cast, and dyn_cast:
static inline bool classof(const GlobalValue *T) { return true; }