// optimization for const over 2**63

package p

var c uint64

var b1 bool = 0x7fffffffffffffff < c && c < 0x8000000000000000
var b2 bool = c < 0x8000000000000000 && 0x7fffffffffffffff < c
var b3 bool = 0x8000000000000000 < c && c < 0x8000000000000001

			convUInt64: 0x8000000000000000,
		},
		// neg max +- 1
		{
			input:      -0x8000000000000000,
			convInt64:  -0x8000000000000000,
			convUInt64: 0x8000000000000000,
		},
		{
			input:      -0x8000000000000001,
			convInt64:  -0x8000000000000000,
			convUInt64: 0x8000000000000000,
		},
		{
			input:      -0x7fffffffffffffff,
			convInt64:  -0x8000000000000000,
			convUInt64: 0x8000000000000000,
		},

TEXT runtime·wasmDiv(SB), NOSPLIT, $0-0
	Get R0
	I64Const $-0x8000000000000000
	I64Eq
	If
		Get R1
		I64Const $-1
		I64Eq
		If
			I64Const $-0x8000000000000000
			Return
		End
	End
	Get R0
	Get R1
	I64DivS
	Return

TEXT runtime·wasmTruncS(SB), NOSPLIT, $0-0
	Get R0
	Get R0
	F64Ne // NaN
	If
		I64Const $0x8000000000000000
		Return
	End

	Get R0

	nsum := []uint64{d0, d1}
	fmt.Printf("%v + %v = %v (carry bit was %v)\n", n1, n2, nsum, carry)

	// First number is 1<<64 + 9223372036854775808
	n1 = []uint64{1, 0x8000000000000000}
	// Second number is 1<<64 + 9223372036854775808
	n2 = []uint64{1, 0x8000000000000000}
	// Add them together producing carry.
	d1, carry = bits.Add64(n1[1], n2[1], 0)
	d0, _ = bits.Add64(n1[0], n2[0], carry)
	nsum = []uint64{d0, d1}

	{"2", "1", "1", "0"},
	{"2", "2", "1", "0"},
	{"10", "100000000000", "1", "0"},
	{"0x8000000000000000", "2", "", "0x40000000000000000000000000000000"},
	{"0x8000000000000000", "2", "6719", "4944"},
	{"0x8000000000000000", "3", "6719", "5447"},
	{"0x8000000000000000", "1000", "6719", "1603"},
	{"0x8000000000000000", "1000000", "6719", "3199"},
	{

	x := -zero
	b := math.Float64bits(x)
	if b != 0 {
		panic(b)
	}
	x = -float64(zero)
	b = math.Float64bits(x)
	if b != 0 {
		panic(b)
	}
	v := x
	b = math.Float64bits(-v)
	if b != 0x8000000000000000 {
		panic(b)
	}

}

// Mkdev returns a Linux device number generated from the given major and minor
// components.
func Mkdev(major, minor uint32) uint64 {
	var DEVNO64 uint64
	DEVNO64 = 0x8000000000000000
	return ((uint64(major) << 32) | (uint64(minor) & 0x00000000FFFFFFFF) | DEVNO64)

				case OpNeg64F:
					arg0 := v.Args[0]
					v.reset(OpXor64)
					v.Type = f.Config.Types.UInt64
					v.AddArg(arg0)
					mask := v.Block.NewValue0(v.Pos, OpConst64, v.Type)
					mask.AuxInt = -0x8000000000000000
					v.AddArg(mask)
				case OpRound32F:
					v.Op = OpCopy
					v.Type = f.Config.Types.UInt32
				case OpRound64F:
					v.Op = OpCopy
					v.Type = f.Config.Types.UInt64
				}

			isDir:   false,
		},
		"?rw-r--r-- 9223372036854775807 1970-01-01 12:00:00 big",
		"? big",
	},
	{
		formatTest{
			name:    "small",
			size:    -0x8000000000000000,
			mode:    ModeSocket | ModeSetuid | 0o644,
			modTime: time.Date(1970, time.January, 1, 12, 0, 0, 0, time.UTC),
			isDir:   false,
		},
		"Surw-r--r-- -9223372036854775808 1970-01-01 12:00:00 small",

	{"-2", "3", "2", "0"},
	{"5", "2", "", "25"},
	{"1", "65537", "2", "1"},
	{"0x8000000000000000", "2", "", "0x40000000000000000000000000000000"},
	{"0x8000000000000000", "2", "6719", "4944"},
	{"0x8000000000000000", "3", "6719", "5447"},
	{"0x8000000000000000", "1000", "6719", "1603"},
	{"0x8000000000000000", "1000000", "6719", "3199"},
	{"0x8000000000000000", "-1000000", "6719", "3663"}, // 3663 = ModInverse(3199, 6719) Issue #25865