input = Arrays.copyOf(input, input.length);
    Doubles.rotate(input, distance);
    assertThat(input).isEqualTo(expectedOutput);
  }

  private static void testRotate(
      double[] input, int distance, int fromIndex, int toIndex, double[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);
    Doubles.rotate(input, distance, fromIndex, toIndex);
    assertThat(input).isEqualTo(expectedOutput);

    input = Arrays.copyOf(input, input.length);
    Ints.rotate(input, distance);
    assertThat(input).isEqualTo(expectedOutput);
  }

  private static void testRotate(
      int[] input, int distance, int fromIndex, int toIndex, int[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);
    Ints.rotate(input, distance, fromIndex, toIndex);
    assertThat(input).isEqualTo(expectedOutput);
  }

    input = Arrays.copyOf(input, input.length);
    Shorts.rotate(input, distance);
    assertThat(input).isEqualTo(expectedOutput);
  }

  private static void testRotate(
      short[] input, int distance, int fromIndex, int toIndex, short[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);
    Shorts.rotate(input, distance, fromIndex, toIndex);
    assertThat(input).isEqualTo(expectedOutput);

    input = Arrays.copyOf(input, input.length);
    Floats.rotate(input, distance);
    assertThat(input).isEqualTo(expectedOutput);
  }

  private static void testRotate(
      float[] input, int distance, int fromIndex, int toIndex, float[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);
    Floats.rotate(input, distance, fromIndex, toIndex);
    assertThat(input).isEqualTo(expectedOutput);

    input = Arrays.copyOf(input, input.length);
    Ints.rotate(input, distance);
    assertThat(input).isEqualTo(expectedOutput);
  }

  private static void testRotate(
      int[] input, int distance, int fromIndex, int toIndex, int[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);
    Ints.rotate(input, distance, fromIndex, toIndex);
    assertThat(input).isEqualTo(expectedOutput);
  }

    input = Arrays.copyOf(input, input.length);
    Doubles.rotate(input, distance);
    assertThat(input).isEqualTo(expectedOutput);
  }

  private static void testRotate(
      double[] input, int distance, int fromIndex, int toIndex, double[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);
    Doubles.rotate(input, distance, fromIndex, toIndex);
    assertThat(input).isEqualTo(expectedOutput);

    input = Arrays.copyOf(input, input.length);
    Floats.rotate(input, distance);
    assertThat(input).isEqualTo(expectedOutput);
  }

  private static void testRotate(
      float[] input, int distance, int fromIndex, int toIndex, float[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);
    Floats.rotate(input, distance, fromIndex, toIndex);
    assertThat(input).isEqualTo(expectedOutput);

    input = Arrays.copyOf(input, input.length);
    Longs.rotate(input, distance);
    assertThat(input).isEqualTo(expectedOutput);
  }

  private static void testRotate(
      long[] input, int distance, int fromIndex, int toIndex, long[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);
    Longs.rotate(input, distance, fromIndex, toIndex);
    assertThat(input).isEqualTo(expectedOutput);

(AND x:(MOVDconst [m]) n) && isPPC64ValidShiftMask(m) => (RLDICL [encodePPC64RotateMask(0,m,64)] n)
(AND x:(MOVDconst [m]) n) && m != 0 && isPPC64ValidShiftMask(^m) => (RLDICR [encodePPC64RotateMask(0,m,64)] n)

// If the RLDICL does not rotate its value, a shifted value can be merged.
(RLDICL [em] x:(SRDconst [s] a)) && (em&0xFF0000) == 0 => (RLDICL [mergePPC64RLDICLandSRDconst(em, s)] a)

		debugPrintf("No file")
		return nil, fmt.Errorf("counter is not initialized - was Open called?")
	}

	// Note: don't call f.rotate here as this will enqueue a follow-up rotation.
	_, cleanup := f.rotate1()
	cleanup()

	if f.err != nil {
		return nil, fmt.Errorf("failed to rotate mapped file - %v", f.err)
	}
	current := f.current.Load()
	if current == nil {
		return nil, fmt.Errorf("counter has no mapped file")