// Then move v to m and adjust its value accordingly;
			// this handles all other uses of v.
			argP, argQ := v.Args[cidx], v.Args[1^cidx]
			u.replaceUses(v, argQ)
			phi := t.Func.newValue(OpPhi, v.Type, t, v.Pos)
			phi.AddArg2(argQ, argP)
			t.replaceUses(v, phi)
			if v.Uses == 0 {
				return
			}
			v.moveTo(m, i)
			// The phi in m belongs to whichever pred idx corresponds to t.

   *
   * @param currentValue the current value (of either base or a cell)
   * @param newValue the argument from a user update call
   * @return result of the update function
   */
  abstract long fn(long currentValue, long newValue);

  /**
   * Handles cases of updates involving initialization, resizing, creating new Cells, and/or

 *     }
 *     V result = value;
 *     value = null;
 *     notifyAll();
 *     return result;
 *   }
 *
 *   public synchronized void set(V newValue) throws InterruptedException {
 *     while (value != null) {
 *       wait();
 *     }
 *     value = newValue;
 *     notifyAll();
 *   }
 * }
 * }</pre>
 *
 * <h3>{@code ReentrantLock}</h3>
 *

   */
  private void replaceValueInEntry(int entry, @ParametricNullness V newValue, boolean force) {
    checkArgument(entry != ABSENT);
    int newValueHash = Hashing.smearedHash(newValue);
    int newValueIndex = findEntryByValue(newValue, newValueHash);
    if (newValueIndex != ABSENT) {
      if (force) {
        removeEntryValueHashKnown(newValueIndex, newValueHash);

        @Override
        public boolean remove(Object key, Object value) {
            throw uoe();
        }

        @Override
        public boolean replace(Object key, Object oldValue, Object newValue) {
            throw uoe();
        }

        @Override
        public Object replace(Object key, Object value) {
            throw uoe();
        }

        @Override

   *
   * @param currentValue the current value (of either base or a cell)
   * @param newValue the argument from a user update call
   * @return result of the update function
   */
  abstract long fn(long currentValue, long newValue);

  /**
   * Handles cases of updates involving initialization, resizing, creating new Cells, and/or

      @ParametricNullness K key,
      boolean containedKey,
      @CheckForNull V oldValue,
      @ParametricNullness V newValue) {
    if (containedKey) {
      // The cast is safe because of the containedKey check.
      removeFromInverseMap(uncheckedCastNullableTToT(oldValue));
    }
    inverse.delegate.put(newValue, key);
  }

  @CanIgnoreReturnValue
  @Override
  @CheckForNull

        @Override
        public boolean remove(Object key, Object value) {
            throw uoe();
        }

        @Override
        public boolean replace(Object key, Object oldValue, Object newValue) {
            throw uoe();
        }

        @Override
        public Object replace(Object key, Object value) {
            throw uoe();
        }

        @Override

   *
   * @param currentValue the current value (of either base or a cell)
   * @param newValue the argument from a user update call
   * @return result of the update function
   */
  abstract long fn(long currentValue, long newValue);

  /**
   * Handles cases of updates involving initialization, resizing, creating new Cells, and/or

   *
   * @param currentValue the current value (of either base or a cell)
   * @param newValue the argument from a user update call
   * @return result of the update function
   */
  abstract long fn(long currentValue, long newValue);

  /**
   * Handles cases of updates involving initialization, resizing, creating new Cells, and/or