// From https://131002.net/siphash/siphash24.c
  // k = 00 01 02 ...
  private static final long K0 = 0x0706050403020100L;
  private static final long K1 = 0x0f0e0d0c0b0a0908L;
  private static final HashFunction SIP_WITH_KEY = Hashing.sipHash24(K0, K1);
  private static final HashFunction SIP_WITHOUT_KEY = Hashing.sipHash24();

  // These constants were originally ported from https://www.131002.net/siphash/siphash24.c. See:

  // From https://131002.net/siphash/siphash24.c
  // k = 00 01 02 ...
  private static final long K0 = 0x0706050403020100L;
  private static final long K1 = 0x0f0e0d0c0b0a0908L;
  private static final HashFunction SIP_WITH_KEY = Hashing.sipHash24(K0, K1);
  private static final HashFunction SIP_WITHOUT_KEY = Hashing.sipHash24();

  // These constants were originally ported from https://www.131002.net/siphash/siphash24.c. See:

	VPCMPEQW 15(R8)(R14*4), Z5, K1, K6                 // 6291554975b4b00f000000 or 6291d54975b4b00f000000
	VPCMPEQW -7(CX)(DX*4), Z5, K1, K6                  // 62f1554975b491f9ffffff or 62f1d54975b491f9ffffff
	VPCMPGTB X26, X8, K1, K1                           // 62913d0964ca or 6291bd0964ca
	VPCMPGTB (BX), X8, K1, K1                          // 62f13d09640b or 62f1bd09640b

    }
  }

  @CollectionSize.Require(SEVERAL)
  public void testEquals() {
    resetContainer(mapEntry(k0(), v0()), mapEntry(k1(), v0()), mapEntry(k0(), v3()));
    Map<K, Collection<V>> expected = Maps.newHashMap();
    expected.put(k0(), newHashSet(v0(), v3()));
    expected.put(k1(), newHashSet(v0()));
    new EqualsTester().addEqualityGroup(expected, multimap().asMap()).testEquals();
  }

  @CollectionSize.Require(SEVERAL)

    val editor = cache.edit("k1")!!
    editor.setString(0, "ABC")
    editor.setString(1, "B")
    editor.commit()
    val k1 = getCleanFile("k1", 0)
    assertThat(readFile(k1)).isEqualTo("ABC")
    cache.remove("k1")
    assertThat(filesystem.exists(k1)).isFalse()
  }

  @ParameterizedTest
  @ArgumentsSource(FileSystemParamProvider::class)

      k ^= k >>> 33;
      k *= 0xc4ceb9fe1a85ec53L;
      k ^= k >>> 33;
      return k;
    }

    private static long mixK1(long k1) {
      k1 *= C1;
      k1 = Long.rotateLeft(k1, 31);
      k1 *= C2;
      return k1;
    }

    private static long mixK2(long k2) {
      k2 *= C2;
      k2 = Long.rotateLeft(k2, 33);
      k2 *= C1;
      return k2;
    }
  }

	VPERMB X0, X2, K1, X23                             // 62e26d098df8
	VPERMB 7(SI)(DI*4), X2, K1, X23                    // 62e26d098dbcbe07000000
	VPERMB -7(DI)(R8*2), X2, K1, X23                   // 62a26d098dbc47f9ffffff
	VPERMB X26, X9, K1, X23                            // 628235098dfa
	VPERMB X19, X9, K1, X23                            // 62a235098dfb

    return of(Ordering.natural(), k1, v1);
  }

  /** Returns an immutable map containing a single entry. */
  private static <K, V> ImmutableSortedMap<K, V> of(Comparator<? super K> comparator, K k1, V v1) {
    return new ImmutableSortedMap<>(
        new RegularImmutableSortedSet<K>(ImmutableList.of(k1), checkNotNull(comparator)),
        ImmutableList.of(v1));

	VPDPWSSDS Y31, Y1, K1, Y9                          // 6212752953cf
	VPDPWSSDS (R8), Y1, K1, Y9                         // 625275295308
	VPDPWSSDS 15(DX)(BX*2), Y1, K1, Y9                 // 62727529538c5a0f000000
	VPDPWSSDS Y0, Y9, K1, Y9                           // 6272352953c8
	VPDPWSSDS Y19, Y9, K1, Y9                          // 6232352953cb

	VPSHUFBITQMB Z3, Z6, K7, K1                        // 62f24d4f8fcb
	VPSHUFBITQMB Z21, Z6, K7, K1                       // 62b24d4f8fcd
	VPSHUFBITQMB -15(R14)(R15*1), Z6, K7, K1           // 62924d4f8f8c3ef1ffffff
	VPSHUFBITQMB -15(BX), Z6, K7, K1                   // 62f24d4f8f8bf1ffffff
	VPSHUFBITQMB Z3, Z25, K7, K1                       // 62f235478fcb
	VPSHUFBITQMB Z21, Z25, K7, K1                      // 62b235478fcd