// The old record is now out-of-date, because one of the children has been
// updated. Remove the obsolete entry from the map.
unsigned NumErased = Map.erase(ValType::get(Ty));
- assert(NumErased && "Element not found!"); NumErased = NumErased;
+ assert(NumErased && "Element not found!"); (void)NumErased;
// Remember the structural hash for the type before we start hacking on it,
// in case we need it later.