a := make([]uint64, N/64)
	for i := 0; i < b.N; i++ {
		for j := uint64(0); j < N; j++ {
			a[j/64] &^= 1 << (j % 64)
		}
	}
}

func BenchmarkBitToggle(b *testing.B) {
	const N = 64 * 8
	a := make([]uint64, N/64)
	for i := 0; i < b.N; i++ {
		for j := uint64(0); j < N; j++ {
			a[j/64] ^= 1 << (j % 64)
		}
	}
}

func BenchmarkBitSetConst(b *testing.B) {
	const N = 64
	a := make([]uint64, N)

	ts.tv_sec = ns / 1e9
	ts.tv_nsec = ns % 1e9
}

type exceptionstate64 struct {
	far uint64 // virtual fault addr
	esr uint32 // exception syndrome
	exc uint32 // number of arm exception taken
}

type regs64 struct {
	x     [29]uint64 // registers x0 to x28
	fp    uint64     // frame register, x29
	lr    uint64     // link register, x30
	sp    uint64     // stack pointer, x31

	ss_size  uintptr
	ss_flags int32
}

type sigcontext struct {
	sc_regs      [32]uint64
	sc_fpregs    [32]uint64
	sc_mdhi      uint64
	sc_hi1       uint64
	sc_hi2       uint64
	sc_hi3       uint64
	sc_mdlo      uint64
	sc_lo1       uint64
	sc_lo2       uint64
	sc_lo3       uint64
	sc_pc        uint64
	sc_fpc_csr   uint32
	sc_used_math uint32
	sc_dsp       uint32
	sc_reserved  uint32
}

	Metric       uint32
	Rdomain      uint32
	Baudrate     uint64
	Ipackets     uint64
	Ierrors      uint64
	Opackets     uint64
	Oerrors      uint64
	Collisions   uint64
	Ibytes       uint64
	Obytes       uint64
	Imcasts      uint64
	Omcasts      uint64
	Iqdrops      uint64
	Oqdrops      uint64
	Noproto      uint64
	Capabilities uint32
	_            [4]byte
	Lastchange   Timeval
}

	shouldPanic("len out of range", func() { _ = make(T, int64(n)) })
	shouldPanic("cap out of range", func() { _ = make(T, 0, int64(n)) })
	shouldPanic("len out of range", func() { _ = make(T, uint64(n)) })
	shouldPanic("cap out of range", func() { _ = make(T, 0, uint64(n)) })
}

func testMakeBytes(n uint64) {
	type T []byte
	shouldPanic("len out of range", func() { _ = make(T, int(n)) })

	//	chku32(uint32(f64), 0)

	chku64(uint64(i8), ci8&0xffffffffffffffff)
	chku64(uint64(i16), ci16&0xffffffffffffffff)
	chku64(uint64(i32), ci32&0xffffffffffffffff)
	chku64(uint64(i64), ci64&0xffffffffffffffff)
	chku64(uint64(u8), cu8&0xffffffffffffffff)
	chku64(uint64(u16), cu16&0xffffffffffffffff)
	chku64(uint64(u32), cu32&0xffffffffffffffff)
	chku64(uint64(u64), cu64&0xffffffffffffffff)
	//	chku64(uint64(f32), 0)

	Datalen    uint16
	Mtu        uint32
	Metric     uint32
	Baudrate   uint64
	Ipackets   uint64
	Ierrors    uint64
	Opackets   uint64
	Oerrors    uint64
	Collisions uint64
	Ibytes     uint64
	Obytes     uint64
	Imcasts    uint64
	Omcasts    uint64
	Iqdrops    uint64
	Oqdrops    uint64
	Noproto    uint64
	Hwassist   uint64
	_          [8]byte
	_          [16]byte
}

type IfData struct {

package main

//go:noinline
func f32(_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, x int32) uint64 {
	return uint64(uint32(x))
}

//go:noinline
func f16(_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, x int16) uint64 {
	return uint64(uint16(x))
}

//go:noinline
func f8(_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, x int8) uint64 {
	return uint64(uint8(x))
}

//go:noinline

}
type szD struct {
	name   string
	sn     string
	u      []uint64
	i      []int64
	oponly string
}

var szs = []szD{
	{name: "uint64", sn: "64", u: []uint64{0, 1, 4294967296, 0x8000000000000000, 0xffffFFFFffffFFFF}},
	{name: "uint64", sn: "64", u: []uint64{3, 5, 7, 9, 10, 11, 13, 19, 21, 25, 27, 37, 41, 45, 73, 81}, oponly: "mul"},

	{name: "int64", sn: "64", i: []int64{-0x8000000000000000, -0x7FFFFFFFFFFFFFFF,

		return
	}
	b.uint64(tag, x)
}

func (b *protobuf) int64(tag int, x int64) {
	u := uint64(x)
	b.uint64(tag, u)
}

func (b *protobuf) int64Opt(tag int, x int64) {
	if x == 0 {
		return
	}
	b.int64(tag, x)
}

func (b *protobuf) int64s(tag int, x []int64) {
	if len(x) > 2 {
		// Use packed encoding
		n1 := len(b.data)
		for _, u := range x {
			b.varint(uint64(u))
		}
		n2 := len(b.data)