private void addInterfence(int newReg,int oldReg){
  newRegInterference.ensureCapacity(newReg + 1);
  while (newReg >= newRegInterference.size()) {
    newRegInterference.add(new BitIntSet(newReg + 1));
  }
  oldRegInterference.mergeInterferenceSet(oldReg,newRegInterference.get(newReg));
}

private void addInterfence ( int newReg , int oldReg ) { newRegInterference . ensureCapacity ( newReg + 1 ) ; while ( newReg >= newRegInterference . size ( ) ) { newRegInterference . add ( new BitIntSet ( newReg + 1 ) ) ; } oldRegInterference . mergeInterferenceSet ( oldReg , newRegInterference . get ( newReg ) ) ; }
adds a register ' s interference set to the interference list , growing it if necessary .
