*
   * @throws IllegalArgumentException if duplicate keys or values are added
   */
  public static <K, V> ImmutableBiMap<K, V> of(K k1, V v1, K k2, V v2) {
    checkEntryNotNull(k1, v1);
    checkEntryNotNull(k2, v2);
    return new RegularImmutableBiMap<K, V>(new Object[] {k1, v1, k2, v2}, 2);
  }

  /**
   * Returns an immutable map containing the given entries, in order.
   *

  public static <K, V> ImmutableMap<K, V> of(K k1, V v1, K k2, V v2) {
    return new RegularImmutableMap<K, V>(entryOf(k1, v1), entryOf(k2, v2));
  }

  public static <K, V> ImmutableMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3) {
    return new RegularImmutableMap<K, V>(entryOf(k1, v1), entryOf(k2, v2), entryOf(k3, v3));
  }

  public static <K, V> ImmutableMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4) {

	VRCP28SS X6, X11, K2, X22                          // 62e2250acbf6
	VRCP28SS X12, X11, K2, X22                         // 62c2250acbf4
	VRCP28SS X13, X15, K2, X22                         // 62c2050acbf5
	VRCP28SS X6, X15, K2, X22                          // 62e2050acbf6
	VRCP28SS X12, X15, K2, X22                         // 62c2050acbf4
	VRCP28SS X13, X30, K2, X22                         // 62c20d02cbf5

	VPSHLDVW Y12, Y13, K2, Y31                         // 6242952a70fc
	VPSHLDVW 17(SP)(BP*1), Y13, K2, Y31                // 6262952a70bc2c11000000
	VPSHLDVW -7(CX)(DX*8), Y13, K2, Y31                // 6262952a70bcd1f9ffffff
	VPSHLDVW Y2, Y7, K2, Y31                           // 6262c52a70fa
	VPSHLDVW Y21, Y7, K2, Y31                          // 6222c52a70fd

	VPDPBUSD X1, X28, K2, X6                           // 62f21d0250f1
	VPDPBUSD -15(R14)(R15*1), X28, K2, X6              // 62921d0250b43ef1ffffff
	VPDPBUSD -15(BX), X28, K2, X6                      // 62f21d0250b3f1ffffff
	VPDPBUSD X15, X8, K2, X6                           // 62d23d0a50f7
	VPDPBUSD X11, X8, K2, X6                           // 62d23d0a50f3

	VGF2P8AFFINEINVQB $47, (DX), Z28, K2, Z28          // 62639d42cf222f
	VGF2P8AFFINEINVQB $47, Z3, Z14, K2, Z13            // 62738d4acfeb2f
	VGF2P8AFFINEINVQB $47, Z12, Z14, K2, Z13           // 62538d4acfec2f
	VGF2P8AFFINEINVQB $47, 99(R15)(R15*1), Z14, K2, Z13 // 62138d4acfac3f630000002f
	VGF2P8AFFINEINVQB $47, (DX), Z14, K2, Z13          // 62738d4acf2a2f

	VPACKUSDW 15(R8)(R14*2), Z0, K2, Z27               // 62027d4a2b9c700f000000
	VPACKUSDW Z14, Z3, K2, Z14                         // 6252654a2bf6
	VPACKUSDW Z7, Z3, K2, Z14                          // 6272654a2bf7
	VPACKUSDW 15(R8)(R14*1), Z3, K2, Z14               // 6212654a2bb4300f000000
	VPACKUSDW 15(R8)(R14*2), Z3, K2, Z14               // 6212654a2bb4700f000000

	V4FMADDPS 17(SP), [Z0-Z3], K2, Z8                  // 62727f4a9a842411000000
	V4FMADDPS -17(BP)(SI*4), [Z0-Z3], K2, Z8           // 62727f4a9a84b5efffffff
	V4FMADDPS 17(SP), [Z10-Z13], K2, Z8                // 62722f4a9a842411000000
	V4FMADDPS -17(BP)(SI*4), [Z10-Z13], K2, Z8         // 62722f4a9a84b5efffffff
	V4FMADDPS 17(SP), [Z20-Z23], K2, Z8                // 62725f429a842411000000

	VPERMI2B Y9, Y22, K2, Y2                           // 62d24d2275d1
	VPERMI2B 15(R8)(R14*1), Y22, K2, Y2                // 62924d227594300f000000
	VPERMI2B 15(R8)(R14*2), Y22, K2, Y2                // 62924d227594700f000000
	VPERMI2B Y18, Y20, K2, Y2                          // 62b25d2275d2
	VPERMI2B Y24, Y20, K2, Y2                          // 62925d2275d0

	VADDPS (DI), Z0, K2, Z26                           // 62617c4a5817
	VADDPS Z21, Z3, K2, Z3                             // 62b1644a58dd
	VADDPS Z13, Z3, K2, Z3                             // 62d1644a58dd
	VADDPS 7(AX), Z3, K2, Z3                           // 62f1644a589807000000
	VADDPS (DI), Z3, K2, Z3                            // 62f1644a581f