continue
		}
		var s string
		var v float64
		switch a[0] {
		case "float64":
			var ok bool
			v, ok = myatof64(a[2])
			if !ok {
				t.Error("testdata/testfp.txt:", lineno, ": cannot atof64 ", a[2])
				continue
			}
			s = fmt.Sprintf(a[1], v)
		case "float32":
			v1, ok := myatof32(a[2])
			if !ok {
				t.Error("testdata/testfp.txt:", lineno, ": cannot atof32 ", a[2])
				continue
			}

		return 0, n, syntaxError(fnParseFloat, s)
	}
	b, ovf := d.floatBits(&float32info)
	f = math.Float32frombits(uint32(b))
	if ovf {
		err = rangeError(fnParseFloat, s)
	}
	return f, n, err
}

func atof64(s string) (f float64, n int, err error) {
	if val, n, ok := special(s); ok {
		return val, n, nil
	}

	mantissa, exp, neg, trunc, hex, n, ok := readFloat(s)
	if !ok {
		return 0, n, syntaxError(fnParseFloat, s)

	}

	return n, true
}

// atoi is like atoi64 but for integers
// that fit into an int.
func atoi(s string) (int, bool) {
	if n, ok := atoi64(s); n == int64(int(n)) {
		return int(n), ok
	}
	return 0, false
}

// atoi32 is like atoi but for integers
// that fit into an int32.
func atoi32(s string) (int32, bool) {
	if n, ok := atoi64(s); n == int64(int32(n)) {
		return int32(n), ok
	}

(Lsh64x(32|16|8) [c] x y) => (Lsh64x64 [c] x (ZeroExt(32|16|8)to64 y))

(Lsh32x64 ...) => (Lsh64x64 ...)
(Lsh32x(32|16|8) [c] x y) => (Lsh64x64 [c] x (ZeroExt(32|16|8)to64 y))

(Lsh16x64 ...) => (Lsh64x64 ...)
(Lsh16x(32|16|8) [c] x y) => (Lsh64x64 [c] x (ZeroExt(32|16|8)to64 y))

(Lsh8x64 ...) => (Lsh64x64 ...)
(Lsh8x(32|16|8) [c] x y) => (Lsh64x64 [c] x (ZeroExt(32|16|8)to64 y))

			return err
		}
		asize := b.uint8()
		sig := b.uint64()

		var toff uint32
		if !dwarf64 {
			toff = b.uint32()
		} else {
			to64 := b.uint64()
			if to64 != uint64(uint32(to64)) {
				b.error("type unit type offset overflow")
				return b.err
			}
			toff = uint32(to64)
		}

		boff := b.off
		d.typeSigs[sig] = &typeUnit{
			unit: unit{
				base:   base,
				off:    boff,

		for _, g := range all {
			h := hw(f, g)
			s := sw(f, g)
			if !same(h, s) {
				err(t, "%g %s %g = sw %g, hw %g\n", f, op, g, s, h)
			}
			testu(t, "to32", trunc32, to32sw, h)
			testu(t, "to64", trunc32, to64sw, h)
			testu(t, "toint64", hwint64, toint64sw, h)
			testu(t, "fromint64", hwint64, fromint64sw, h)
			testcmp(t, f, h)
			testcmp(t, h, f)
			testcmp(t, g, h)
			testcmp(t, h, g)
		}
	}