}
		v.reset(OpTrunc32to16)
		v0 := b.NewValue0(v.Pos, OpRsh32Ux64, typ.UInt32)
		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
		v2.AuxInt = int32ToAuxInt(int32(1<<15 + (umagic16(c).m+1)/2))
		v3 := b.NewValue0(v.Pos, OpRsh32Ux64, typ.UInt32)
		v4 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
		v4.AddArg(x)
		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)

	for {
		vo := auxIntToValAndOff(v.AuxInt)
		sym := auxToSym(v.Aux)
		ptr := v_0
		mem := v_1
		if !(vo.Val() == 0) {
			break
		}
		v.reset(OpAMD64TESTB)
		x := b.NewValue0(v.Pos, OpAMD64MOVBload, typ.UInt8)
		x.AuxInt = int32ToAuxInt(vo.Off())
		x.Aux = symToAux(sym)
		x.AddArg2(ptr, mem)
		v.AddArg2(x, x)
		return true
	}
	// match: (CMPBconstload {sym} [vo] ptr mem)

		v.AuxInt = int32ToAuxInt(2)
		v0 := b.NewValue0(v.Pos, OpPPC64SLD, t)
		v1 := b.NewValue0(v.Pos, OpPPC64MOVHZreg, typ.Int64)
		v1.AddArg(x)
		v0.AddArg2(v1, y)
		v2 := b.NewValue0(v.Pos, OpPPC64MOVDconst, typ.Int64)
		v2.AuxInt = int64ToAuxInt(0)
		v3 := b.NewValue0(v.Pos, OpPPC64CMPconst, types.TypeFlags)
		v3.AuxInt = int64ToAuxInt(0)
		v4 := b.NewValue0(v.Pos, OpPPC64ANDconst, typ.Int)

			if !(isPowerOfTwo64(c+1) && int32(c) >= 7) {
				continue
			}
			v.reset(OpARM64MOVWUreg)
			v0 := b.NewValue0(v.Pos, OpARM64NEG, x.Type)
			v1 := b.NewValue0(v.Pos, OpARM64ADDshiftLL, x.Type)
			v1.AuxInt = int64ToAuxInt(log64(c + 1))
			v2 := b.NewValue0(v.Pos, OpARM64NEG, x.Type)
			v2.AddArg(x)
			v1.AddArg2(v2, x)
			v0.AddArg(v1)
			v.AddArg(v0)
			return true
		}

		v.reset(OpS390XSUB)
		v0 := b.NewValue0(v.Pos, OpS390XMOVDconst, typ.UInt64)
		v0.AuxInt = int64ToAuxInt(64)
		v1 := b.NewValue0(v.Pos, OpS390XFLOGR, typ.UInt64)
		v2 := b.NewValue0(v.Pos, OpS390XMOVWZreg, typ.UInt64)
		v3 := b.NewValue0(v.Pos, OpS390XANDW, t)
		v4 := b.NewValue0(v.Pos, OpS390XSUBWconst, t)
		v4.AuxInt = int32ToAuxInt(1)
		v4.AddArg(x)
		v5 := b.NewValue0(v.Pos, OpS390XNOTW, t)
		v5.AddArg(x)

    List<V> oldValues = getCopy(key);
    ListIterator<V> keyValues = new ValueForKeyIterator(key);
    Iterator<? extends V> newValues = values.iterator();

    // Replace existing values, if any.
    while (keyValues.hasNext() && newValues.hasNext()) {
      keyValues.next();
      keyValues.set(newValues.next());
    }

    // Remove remaining old values, if any.
    while (keyValues.hasNext()) {
      keyValues.next();

    String key = "key";
    long newValue = random.nextInt(MAX_ADDEND);
    for (int i = 0; i < ITERATIONS; i++) {
      long before = map.get(key);
      long result = map.put(key, newValue);
      long after = map.get(key);
      assertEquals(newValue, after);
      assertEquals(before, result);
      newValue += newValue;
    }
    assertEquals(1, map.size());

	for {
		x := v_0
		y := v_1
		v.reset(OpARMSUB)
		v0 := b.NewValue0(v.Pos, OpARMXOR, typ.UInt32)
		v1 := b.NewValue0(v.Pos, OpSelect0, typ.UInt32)
		v2 := b.NewValue0(v.Pos, OpARMCALLudiv, types.NewTuple(typ.UInt32, typ.UInt32))
		v3 := b.NewValue0(v.Pos, OpARMSUB, typ.UInt32)
		v4 := b.NewValue0(v.Pos, OpARMXOR, typ.UInt32)
		v5 := b.NewValue0(v.Pos, OpSignmask, typ.Int32)
		v5.AddArg(x)
		v4.AddArg2(x, v5)

    List<V> oldValues = getCopy(key);
    ListIterator<V> keyValues = new ValueForKeyIterator(key);
    Iterator<? extends V> newValues = values.iterator();

    // Replace existing values, if any.
    while (keyValues.hasNext() && newValues.hasNext()) {
      keyValues.next();
      keyValues.set(newValues.next());
    }

    // Remove remaining old values, if any.
    while (keyValues.hasNext()) {
      keyValues.next();

    String key = "key";
    long newValue = random.nextInt(MAX_ADDEND);
    for (int i = 0; i < ITERATIONS; i++) {
      long before = map.get(key);
      long result = map.put(key, newValue);
      long after = map.get(key);
      assertEquals(newValue, after);
      assertEquals(before, result);
      newValue += newValue;
    }
    assertEquals(1, map.size());