MustSupportFeatureDetection(t)
	runDebugOptionsTest(t, "TestAllCapabilitiesDisabled", "cpu.all=off")
}

func TestAllCapabilitiesDisabled(t *testing.T) {
	MustHaveDebugOptionsSupport(t)

	if godebug.New("#cpu.all").Value() != "off" {
		t.Skipf("skipping test: GODEBUG=cpu.all=off not set")
	}

	for _, o := range Options {
		want := false
		if got := *o.Feature; got != want {

      // if expected.length == 0, off has to be 0 but length doesn't matter--result will be empty
      int off = expected.length == 0 ? 0 : random.nextInt(expected.length);
      int len = expected.length == 0 ? 4 : random.nextInt(expected.length - off);

      ByteSourceFactory sliced = SourceSinkFactories.asSlicedByteSourceFactory(factory, off, len);

	{
		"LOAD macro",
		lines(
			"#define LOAD(off, reg) \\",
			"\tMOVBLZX	(off*4)(R12),	reg \\",
			"\tADDB	reg,		DX",
			"",
			"LOAD(8, AX)",
		),
		"\n.\n.MOVBLZX.(.8.*.4.).(.R12.).,.AX.\n.ADDB.AX.,.DX.\n",
	},
	{
		"nested multiline macro",
		lines(
			"#define KEYROUND(xmm, load, off, r1, r2, index) \\",
			"\tMOVBLZX	(BP)(DX*4),	R8 \\",
			"\tload((off+1), r2) \\",
			"\tMOVB	R8,		(off*4)(R12) \\",

		n -= next
	}
	return buf, nil
}

// ReadDataAt reads n bytes from the input stream at off, but avoids
// allocating all n bytes if n is large. This avoids crashing the program
// by allocating all n bytes in cases where n is incorrect.
func ReadDataAt(r io.ReaderAt, n uint64, off int64) ([]byte, error) {
	if int64(n) < 0 || n != uint64(int(n)) {
		// n is too large to fit in int, so we can't allocate

    public void write(int b) throws IOException {
        hasher.putByte((byte) b);
        out.write(b);
    }

    @Override
    public void write(byte[] bytes, int off, int len) throws IOException {
        hasher.putBytes(bytes, off, len);
        out.write(bytes, off, len);
    }

    public HashCode hash() {
        return hasher.hash();
    }

    @Override
    public void close() throws IOException {

//
// If Mode is "off", no data should be written to the telemetry directory, and
// the other paths values referenced by Dir should be considered undefined.
// This accounts for the case where initializing [Default] fails, and therefore
// local telemetry paths are unknown.
func (d Dir) Mode() (string, time.Time) {
	if d.modefile == "" {

	// occurs.

	var fn func() // ERROR "moved to heap: fn$"
	i := 0        // ERROR "moved to heap: i$"
	for ; i < maxI; i++ {
		// var fn func() // this makes it work, because fn stays off heap
		j := 0        // ERROR "moved to heap: j$"
		fn = func() { // ERROR "func literal escapes to heap$"
			m[i] = append(m[i], 0)
			if j < 25 {
				j++
				fn()
			}
		}
		fn()
	}

	ctxt *obj.Link
	data []byte
	off  int
}

func newsehbuf(ctxt *obj.Link, nodes uint8) sehbuf {
	// - 8 bytes for the header
	// - 2 bytes for each node
	// - 2 bytes in case nodes is not even
	size := 8 + nodes*2
	if nodes%2 != 0 {
		size += 2
	}
	return sehbuf{ctxt, make([]byte, size), 0}
}

func (b *sehbuf) write8(v uint8) {
	b.data[b.off] = v
	b.off++
}

func (b *sehbuf) write32(v uint32) {

		return nil, err
	}
	if err := binary.Read(sr, binary.BigEndian, &fhdr); err != nil {
		return nil, err
	}

	off, err := parseDecimalBytes(fhdr.Flfstmoff[:])
	if err != nil {
		return nil, fmt.Errorf("error parsing offset of first member in archive header(%q); %v", fhdr, err)
	}

	if off == 0 {
		// Occurs if the archive is empty.
		return arch, nil
	}

	lastoff, err := parseDecimalBytes(fhdr.Fllstmoff[:])

}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func preadv(fd int, iovs []Iovec, off int64) (n int, err error) {
	var _p0 *Iovec
	if len(iovs) > 0 {
		_p0 = &iovs[0]
	}
	r0, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procpreadv)), 4, uintptr(fd), uintptr(unsafe.Pointer(_p0)), uintptr(len(iovs)), uintptr(off), 0, 0)
	n = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}