VEXT	$8, V1.B16, V2.B8, V2.B16                        // ERROR "invalid arrangement"
	VEXT	$8, V1.H8, V2.H8, V2.H8                          // ERROR "invalid arrangement"
	VRBIT	V1.B16, V2.B8                                    // ERROR "invalid arrangement"
	VRBIT	V1.H4, V2.H4                                     // ERROR "invalid arrangement"
	VUSHR	$56, V1.D2, V2.H4                                // ERROR "invalid arrangement"

	VPMULL2 V2.D2, V1.D2, V4.Q1                                 // 24e0e24e
	VPMULL V2.B8, V1.B8, V3.H8                                  // 23e0220e
	VPMULL2 V2.B16, V1.B16, V4.H8                               // 24e0224e
	VRBIT V10.B16, V21.B16                                      // 5559606e
	VREV32 V2.H8, V1.H8                                         // 4108606e
	VREV16 V2.B8, V1.B8                                         // 4118200e

   * could perform a cast to LegacyConverter, but we can't because it's an internal-only class.
   *
   * TODO(cpovirk): So make it part of the open-source build, albeit package-private there?
   *
   * So we use uncheckedCastNullableTToT here. This is a weird usage of that method: The method is
   * documented as being for use with type parameters that have parametric nullness. But Converter's

	ZRADDHNB Z22.S, Z10.S, Z8.H                       // 4869b645
	ZRADDHNT Z22.S, Z10.S, Z8.H                       // 486db645
	ZRAX1 Z7.D, Z6.D, Z23.D                           // d7f42745
	ZRBIT Z7.D, P4.Z, Z13.D                           // edb0e705
	ZRBIT Z7.D, P4.M, Z13.D                           // ed90e705
	ZREV Z1.S, Z26.S                                  // 3a38b805
	ZREVB Z7.D, P4.Z, Z13.D                           // edb0e405

	ZRADDHNT Z1.S, Z26.S, Z11.B                       // ERROR "illegal combination from SVE"
	ZRAX1 Z1.S, Z26.S, Z11.B                          // ERROR "illegal combination from SVE"
	ZRBIT Z1.S, P13.Z, Z11.B                          // ERROR "illegal combination from SVE"
	ZRBIT Z1.S, P13.Z, Z11.B                          // ERROR "illegal combination from SVE"
	ZREV Z11.B, Z7.D                                  // ERROR "illegal combination from SVE"

}

// updates rebalance.bin from let's say 2 pool setup in the middle
// of a rebalance, was expanded can cause z.rebalMeta to be outdated
// due to a missing new pool. This function tries to handle this
// scenario, albeit rare it seems to have occurred in the wild.
//
// since we do not explicitly disallow it, but it is okay for them
// expand and then we continue to rebalance.

   * could perform a cast to LegacyConverter, but we can't because it's an internal-only class.
   *
   * TODO(cpovirk): So make it part of the open-source build, albeit package-private there?
   *
   * So we use uncheckedCastNullableTToT here. This is a weird usage of that method: The method is
   * documented as being for use with type parameters that have parametric nullness. But Converter's

     * sizing; if the Set uses different equality semantics, it might contain duplicates according
     * to equals(), and we will deduplicate those properly, albeit at some cost in allocations.
     */
    int expectedSize =
        elements instanceof Set ? array.length : estimatedSizeForUnknownDuplication(array.length);
    return fromArrayWithExpectedSize(array, expectedSize);

	VFMLS	V1.S4, V12.S4, V1.S4            // 81cda14e
	VEXT	$4, V2.B8, V1.B8, V3.B8         // 2320022e
	VEXT	$8, V2.B16, V1.B16, V3.B16      // 2340026e
	VRBIT	V24.B16, V24.B16                // 185b606e
	VRBIT	V24.B8, V24.B8                  // 185b602e
	VUSHR	$56, V1.D2, V2.D2               // 2204486f
	VUSHR	$24, V1.S4, V2.S4               // 2204286f
	VUSHR	$24, V1.S2, V2.S2               // 2204282f

	MULWB	R1, R2, R3           // a20123e1
	MULWT	R1, R2, R3           // e20123e1

// REV
	REV	R1, R2               // 312fbfe6
	REV16	R1, R2               // b12fbfe6
	REVSH	R1, R2               // b12fffe6
	RBIT	R1, R2               // 312fffe6

// XTAB/XTAH/XTABU/XTAHU
	XTAB	R2@>0, R8            // 7280a8e6
	XTAB	R2@>8, R8            // 7284a8e6
	XTAB	R2@>16, R8           // 7288a8e6