f3div2          = 3. / 2.
	f1e3    float64 = 1e3
)

func assert(t bool, s string) {
	if !t {
		panic(s)
	}
}

func ints() {
	assert(c0 == 0, "c0")
	assert(c1 == 1, "c1")
	assert(chuge > chuge_1, "chuge")
	assert(chuge_1+1 == chuge, "chuge 1")
	assert(chuge+cm1+1 == chuge, "cm1")
	assert(c3div2 == 1, "3/2")
	assert(c1e3 == 1000, "c1e3 int")
	assert(c1e3 == 1e3, "c1e3 float")

	c3   = c2 * c2 // GC_ERROR "overflow"
	c4   = c3 * c3
	c5   = c4 * c4
	c6   = c5 * c5
	c7   = c6 * c6
	c8   = c7 * c7
	c9   = c8 * c8
	c10  = c9 * c9
	c11  = c10 * c10
	c12  = c11 * c11
	c13  = c12 * c12
	c14  = c13 * c13 // GCCGO_ERROR "overflow"
	c15  = c14 * c14
	c16  = c15 * c15
	c17  = c16 * c16
	c18  = c17 * c17
	c19  = c18 * c18
	c20  = c19 * c19
	c21  = c20 * c20
	c22  = c21 * c21
	c23  = c22 * c22

		{+1, +1e9 - 1e0, "1.999999999"},
		{+1, +1e9 - 1e3, "1.999999"},
		{+1, +1e9 - 1e6, "1.999"},
		{+1, +0e0 - 0e0, "1"},
		{+1, +1e6 - 0e0, "1.001"},
		{+1, +1e3 - 0e0, "1.000001"},
		{+1, +1e0 - 0e0, "1.000000001"},
		{0, 1e9 - 1e0, "0.999999999"},
		{0, 1e9 - 1e3, "0.999999"},
		{0, 1e9 - 1e6, "0.999"},
		{0, 0e0, "0"},
		{0, 1e6 + 0e0, "0.001"},
		{0, 1e3 + 0e0, "0.000001"},
		{0, 1e0 + 0e0, "0.000000001"},

	// To make stack unwinding work, this function should NOT be marked as NOFRAME,
	// as it may contain a call, which clobbers LR even just temporarily.
	MRC	15, 0, R0, C13, C0, 3 // fetch TLS base pointer
	BIC $3, R0 // Darwin/ARM might return unaligned pointer
	MOVW	runtime·tls_g(SB), R11
	ADD	R11, R0
	MOVW	g, 0(R0)
	MOVW	g, R0 // preserve R0 across call to setg<>
	RET

	fmt.Printf("OK\n")
}

func CgoCheckBytes() {
	try, _ := strconv.Atoi(os.Getenv("GO_CGOCHECKBYTES_TRY"))
	if try <= 0 {
		try = 1
	}
	b := make([]byte, 1e6*try)
	start := time.Now()
	for i := 0; i < 1e3*try; i++ {
		C.foo2(unsafe.Pointer(&b[0]))
		if time.Since(start) > time.Second {
			break
		}
	}

	for i := range 'a' {
		var _ *rune = &i // ensure i has type rune
	}
}

func issue66561() {
	for range 10.0 /* ERROR "cannot range over 10.0 (untyped float constant 10)" */ {
	}
	for range 1e3 /* ERROR "cannot range over 1e3 (untyped float constant 1000)" */ {
	}
	for range 1 /* ERROR "cannot range over 1 + 0i (untyped complex constant (1 + 0i))" */ + 0i {
	}

			var d decimal
			d.init(natOne, shift)
			sink = d.String()
		}
	}
}

func BenchmarkFloatString(b *testing.B) {
	x := new(Float)
	for _, prec := range []uint{1e2, 1e3, 1e4, 1e5} {
		x.SetPrec(prec).SetRat(NewRat(1, 3))
		b.Run(fmt.Sprintf("%v", prec), func(b *testing.B) {
			b.ReportAllocs()
			for i := 0; i < b.N; i++ {
				sink = x.String()
			}
		})
	}

	MOVW	R0, 12(R4)		// save return value to libcall->r1
	MOVW	R1, 16(R4)

	// GetLastError
	MRC	15, 0, R1, C13, C0, 2
	MOVW	0x34(R1), R0
	MOVW	R0, 20(R4)		// store in libcall->err

	MOVM.IA.W (R13), [R4, R5, R15]

TEXT runtime·getlasterror(SB),NOSPLIT,$0
	MRC	15, 0, R0, C13, C0, 2
	MOVW	0x34(R0), R0
	MOVW	R0, ret+0(FP)
	RET

// Called by Windows as a Vectored Exception Handler (VEH).

func rndV(n int) []Word {
	v := make([]Word, n)
	for i := range v {
		v[i] = rndW()
	}
	return v
}

var benchSizes = []int{1, 2, 3, 4, 5, 1e1, 1e2, 1e3, 1e4, 1e5}

func BenchmarkAddVV(b *testing.B) {
	for _, n := range benchSizes {
		if isRaceBuilder && n > 1e3 {
			continue
		}
		x := rndV(n)
		y := rndV(n)
		z := make([]Word, n)
		b.Run(fmt.Sprint(n), func(b *testing.B) {
			b.SetBytes(int64(n * _W))

	{"numbers", "{{1 02 0x14 0X14 -7.2i 1e3 1E3 +1.2e-4 4.2i 1+2i 1_2 0x1.e_fp4 0X1.E_FP4}}", []item{
		tLeft,
		mkItem(itemNumber, "1"),
		tSpace,
		mkItem(itemNumber, "02"),
		tSpace,
		mkItem(itemNumber, "0x14"),
		tSpace,
		mkItem(itemNumber, "0X14"),
		tSpace,
		mkItem(itemNumber, "-7.2i"),
		tSpace,
		mkItem(itemNumber, "1e3"),
		tSpace,
		mkItem(itemNumber, "1E3"),
		tSpace,