asm:    ppc64.AADDZE,
		reg: regInfo{
			inputs: []inputInfo{
				{1, 9223372036854775808}, // XER
				{0, 1073733630},          // SP SB R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24 R25 R26 R27 R28 R29
			},
			clobbers: 9223372036854775808, // XER
			outputs: []outputInfo{
				{1, 9223372036854775808}, // XER

	{[]byte{0x01, 0x00}, true, 256},
	{[]byte{0x80}, true, -128},
	{[]byte{0xff, 0x7f}, true, -129},
	{[]byte{0xff}, true, -1},
	{[]byte{0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, true, -9223372036854775808},
	{[]byte{0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, false, 0},
	{[]byte{}, false, 0},
	{[]byte{0x00, 0x7f}, false, 0},
	{[]byte{0xff, 0xf0}, false, 0},
}

func TestParseInt64(t *testing.T) {

	N int64
}

func (r *atLeastReader) Read(p []byte) (int, error) {
	if r.N <= 0 {
		return 0, io.EOF
	}
	n, err := r.R.Read(p)
	r.N -= int64(n) // won't underflow unless len(p) >= n > 9223372036854775809
	if r.N > 0 && err == io.EOF {
		return n, io.ErrUnexpectedEOF
	}
	if r.N <= 0 && err == nil {
		return n, io.EOF
	}
	return n, err
}

		{"0.9n", decQuantity(1, -9, DecimalSI)},
		{"0.00000012345", decQuantity(124, -9, DecimalSI)},
		{"0.00000012354", decQuantity(124, -9, DecimalSI)},
		{"9Ei", Quantity{d: maxAllowed, Format: BinarySI}},
		{"9223372036854775807Ki", Quantity{d: maxAllowed, Format: BinarySI}},
		{"12E", decQuantity(12, 18, DecimalSI)},

		// We'll accept fractional binary stuff, too.
		{"100.035Ki", decQuantity(10243584, -2, BinarySI)},

			if e, ok := r.(runtime.Error); ok {
				t.Logf("%v\n", e.Error())
			}
		}
	}()
	var w int8 = -128
	var x int16 = -32768
	var y int32 = -2147483648
	var z int64 = -9223372036854775808

	for i := -5; i < 0; i++ {
		g8 = w / int8(i)
		g16 = x / int16(i)
		g32 = y / int32(i)
		g64 = z / int64(i)
		g8 = w % int8(i)
		g16 = x % int16(i)
		g32 = y % int32(i)

	// 9007199254740993 = 1<<53+1 cannot be stored precisely in a float64
	{"9007199254740993ns", (1<<53 + 1) * Nanosecond},
	// largest duration that can be represented by int64 in nanoseconds
	{"9223372036854775807ns", (1<<63 - 1) * Nanosecond},
	{"9223372036854775.807us", (1<<63 - 1) * Nanosecond},
	{"9223372036s854ms775us807ns", (1<<63 - 1) * Nanosecond},
	{"-9223372036854775808ns", -1 << 63 * Nanosecond},