C++ (Cpp) GlobalValue::removeDeadConstantUsers Beispiele

Beispiel #1

// RemoveUnusedGlobalValue - Loop over all of the uses of the specified
// GlobalValue, looking for the constant pointer ref that may be pointing to it.
// If found, check to see if the constant pointer ref is safe to destroy, and if
// so, nuke it.  This will reduce the reference count on the global value, which
// might make it deader.
//
bool GlobalDCE::RemoveUnusedGlobalValue(GlobalValue &GV) {
  if (GV.use_empty()) return false;
  GV.removeDeadConstantUsers();
  return GV.use_empty();
}