type WaitStatus uint32

const (
	mask  = 0x7F
	core  = 0x80
	shift = 8

	exited  = 0
	stopped = 0x7F
)

func (w WaitStatus) Exited() bool { return w&mask == exited }

func (w WaitStatus) ExitStatus() int {
	if w&mask != exited {
		return -1
	}
	return int(w >> shift)
}

func (w WaitStatus) Signaled() bool { return w&mask != stopped && w&mask != 0 }

      setPredecessor(succ, pred);
    }
  }

  @Override
  void insertEntry(
      int entryIndex, @ParametricNullness K key, @ParametricNullness V value, int hash, int mask) {
    super.insertEntry(entryIndex, key, value, hash, mask);
    setSucceeds(lastEntry, entryIndex);
    setSucceeds(entryIndex, ENDPOINT);
  }

  @Override
  void accessEntry(int index) {
    if (accessOrder) {

	separator := byte(0x80) // gets reset to 0x00 once used
	for i := byte(0); i < chunk; i++ {
		mask := byte(int8(i-nx) >> 7) // 0x00 after the end of data

		// if we reached the end of the data, replace with 0x80 or 0x00
		d.x[i] = (^mask & separator) | (mask & d.x[i])

		// zero the separator once used
		separator &= mask

		if i >= 56 {
			// we might have to write the length here if all fit in one block

	}
}

// removeOneCPU removes one (any) cpu from affinity mask.
// It returns new affinity mask.
func removeOneCPU(mask uintptr) (uintptr, error) {
	if mask == 0 {
		return 0, fmt.Errorf("cpu affinity mask is empty")
	}
	maskbits := int(unsafe.Sizeof(mask) * 8)
	for i := 0; i < maskbits; i++ {
		newmask := mask & ^(1 << uint(i))
		if newmask != mask {
			return newmask, nil
		}

	}
	panic("not reached")

}

func adjustScore(typ scoreAdjustTyp, score int, mask scoreAdjustTyp) (int, scoreAdjustTyp) {

	if isMust(typ) {
		if mask&typ != 0 {
			return score, mask
		}
		may := mustToMay(typ)
		if mask&may != 0 {
			// promote may to must, so undo may
			score -= adjValue(may)
			mask &^= may
		}
	} else if isMay(typ) {
		must := mayToMust(typ)
		if mask&(must|typ) != 0 {
			return score, mask
		}
	}

	ADD	$16, OUTENC, OUTENC
	ADD	$-16, OUTDEC, OUTDEC
	VSPLTISB	$8, KEY                  // vspltisb 3,8
	MOVD	CNT, CTR                         // mtctr 7
	VSUBUBM	MASK, KEY, MASK                  // vsububm 5,5,3

loop192:
	VPERM	IN1, IN1, MASK, KEY // vperm 3,2,2,5
	VSLDOI	$12, ZERO, IN0, TMP // vsldoi 6,0,1,12
	VCIPHERLAST	KEY, RCON, KEY      // vcipherlast 3,3,4

	VXOR	IN0, TMP, IN0       // vxor 1,1,6

    ReducedPrecisionSupport mask = ReducedPrecisionSupport::None;
    if (toco_flags.quantize_to_float16()) {
      mask |= ReducedPrecisionSupport::Float16Inference;
    }
    if (toco_flags.allow_bfloat16()) {
      mask |= ReducedPrecisionSupport::Bfloat16Inference;
    }
    if (toco_flags.accumulation_type() == toco::IODataType::FLOAT16) {
      mask |= ReducedPrecisionSupport::Float16Accumulation;

		name string
		cidr string
	}{
		{
			name: "invalid IPv4 loopback CIDR",
			cidr: "192.168.1.1/24",
		},
		{
			name: "invalid CIDR with mask below range",
			cidr: "10.0.0.1/7",
		},
		{
			name: "invalid CIDR with mask above range",
			cidr: "172.16.0.1/40",
		},
	}

	for _, tc := range cases {
		t.Run(tc.name, func(t *testing.T) {
			err := ValidateIPv4LoopbackCidr(tc.cidr)

//
//go:nosplit
func setSignalstackSP(s *stackt, sp uintptr) {
	s.ss_sp = sp
}

//go:nosplit
//go:nowritebarrierrec
func sigaddset(mask *sigset, i int) {
	mask.__bits[(i-1)/32] |= 1 << ((uint32(i) - 1) & 31)
}

func sigdelset(mask *sigset, i int) {
	mask.__bits[(i-1)/32] &^= 1 << ((uint32(i) - 1) & 31)
}

//go:nosplit
func (c *sigctxt) fixsigcode(sig uint32) {
}

	// for VPERMXOR
	MOVD $consts<>+0xa0(SB), MASK
	MOVD $16, R20
	// V16
	LXVW4X (CONSTBASE)(R0), VS48
	ADD $80,CONSTBASE

	// Load key into V17,V18
	LXVW4X (KEY)(R0), VS49
	LXVW4X (KEY)(R8), VS50

	// Load CNT, NONCE into V19
	LXVW4X (CNT)(R0), VS51

	// Clear V27
	VXOR V27, V27, V27

	// V28
	LXVW4X (CONSTBASE)(R11), VS60

	// Load mask constants for VPERMXOR
	LXVW4X (MASK)(R0), V20