func (br *bitReader) moreBits() error {
	for br.cnt < 16 {
		if br.off >= uint32(len(br.data)) {
			return br.r.makeEOFError(int(br.off))
		}
		c := br.data[br.off]
		br.off++
		br.bits |= uint32(c) << br.cnt
		br.cnt += 8
	}
	return nil
}

// val is called to fetch a value of b bits.
func (br *bitReader) val(b uint8) uint32 {
	r := br.bits & ((1 << b) - 1)
	br.bits >>= b
	br.cnt -= uint32(b)
	return r
}

		p = pp.Append(p, s390x.ACLEAR, obj.TYPE_CONST, 0, 256, obj.TYPE_MEM, reg, off)
		pl := p
		p = pp.Append(p, s390x.AADD, obj.TYPE_CONST, 0, 256, obj.TYPE_REG, reg, 0)
		p = pp.Append(p, s390x.ABRCTG, obj.TYPE_REG, ireg, 0, obj.TYPE_BRANCH, 0, 0)
		p.To.SetTarget(pl)
		cnt = cnt % 256
	}

	// Generate remaining clear instructions without a loop.
	for cnt > 0 {
		n := cnt

		var s []int
		for i := range size {
			s = append(s, i)
		}
		ei, ev := 0, 0
		cnt := 0
		for i, v := range All(s) {
			if i != ei || v != ev {
				t.Errorf("at iteration %d got %d, %d want %d, %d", cnt, i, v, ei, ev)
			}
			ei++
			ev++
			cnt++
		}
		if cnt != size {
			t.Errorf("read %d values expected %d", cnt, size)
		}
	}
}

func TestBackward(t *testing.T) {
	for size := 0; size < 10; size++ {

	xh.v[3] = -xh.v[3]

	for i := range xh.buf {
		xh.buf[i] = 0
	}
	xh.cnt = 0
}

// update adds a buffer to the has.
func (xh *xxhash64) update(b []byte) {
	xh.len += uint64(len(b))

	if xh.cnt+len(b) < len(xh.buf) {
		copy(xh.buf[xh.cnt:], b)
		xh.cnt += len(b)
		return
	}

	if xh.cnt > 0 {
		n := copy(xh.buf[xh.cnt:], b)
		b = b[n:]
		xh.v[0] = xh.round(xh.v[0], binary.LittleEndian.Uint64(xh.buf[:]))

		for length > 0 {
			cnt := dd.tryWriteCopy(dist, length)
			if cnt == 0 {
				cnt = dd.writeCopy(dist, length)
			}

			length -= cnt
			if dd.availWrite() == 0 {
				got.Write(dd.readFlush())
			}
		}
	}
	var writeString = func(str string) {
		for len(str) > 0 {
			cnt := copy(dd.writeSlice(), str)
			str = str[cnt:]
			dd.writeMark(cnt)
			if dd.availWrite() == 0 {

	"cmd/internal/obj"
	"cmd/internal/obj/riscv"
)

func zeroRange(pp *objw.Progs, p *obj.Prog, off, cnt int64, _ *uint32) *obj.Prog {
	if cnt == 0 {
		return p
	}

	// Adjust the frame to account for LR.
	off += base.Ctxt.Arch.FixedFrameSize

	if cnt < int64(4*types.PtrSize) {
		for i := int64(0); i < cnt; i += int64(types.PtrSize) {

                    wr.setData(b, off, w);

                    Smb2WriteResponse resp = th.send(wr, RequestParam.NO_RETRY);
                    long cnt = resp.getCount();
                    this.fp += cnt;
                    len -= cnt;
                    off += cnt;
                }
                else if ( this.useNTSmbs ) {
                    this.reqx.setParam(fh.getFid(), this.fp, len - w, b, off, w);

	"cmd/internal/obj/x86"
)

func zerorange(pp *objw.Progs, p *obj.Prog, off, cnt int64, ax *uint32) *obj.Prog {
	if cnt == 0 {
		return p
	}
	if *ax == 0 {
		p = pp.Append(p, x86.AMOVL, obj.TYPE_CONST, 0, 0, obj.TYPE_REG, x86.REG_AX, 0)
		*ax = 1
	}

	if cnt <= int64(4*types.RegSize) {
		for i := int64(0); i < cnt; i += int64(types.RegSize) {

	return I[T](J[T](g(x)))
}

type S struct {
	x int
}

func (s *S) foo() {}
func (s *S) bar() {}

var cnt int

func inc(s *S) *S {
	cnt++
	return s
}

func main() {
	i := f(&S{x: 7}, inc)
	if i.(*S).x != 7 {
		panic("bad")
	}
	if cnt != 1 {
		panic("multiple calls")
	}

}

var finVar struct {
	sync.Mutex
	cnt int
}

func TestNoRaceFinGlobal(t *testing.T) {
	c := make(chan bool)
	go func() {
		x := new(string)
		runtime.SetFinalizer(x, func(x *string) {
			finVar.Lock()
			finVar.cnt++
			finVar.Unlock()
		})
		c <- true
	}()
	<-c
	runtime.GC()
	time.Sleep(100 * time.Millisecond)
	finVar.Lock()
	finVar.cnt++
	finVar.Unlock()
}