switch {
	case f == 0:
		return f, 0 // correctly return -0
	case IsInf(f, 0) || IsNaN(f):
		return f, 0
	}
	f, exp = normalize(f)
	x := Float64bits(f)
	exp += int((x>>shift)&mask) - bias + 1
	x &^= mask << shift
	x |= (-1 + bias) << shift
	frac = Float64frombits(x)
	return

	ORL	DI,		BP; \
	MOVL	(index*4)(SI),DI; \
	ADDL	BP,		a; \
	ROLL	$shift,	a; \
	ADDL	b,		a

#define ROUND3(a, b, c, d, index, const, shift) \
	LEAL	const(a)(DI*1),a; \
	MOVL	(index*4)(SI),DI; \
	XORL	d,		BP; \
	XORL	b,		BP; \
	ADDL	BP,		a; \
	ROLL	$shift,		a; \
	MOVL	b,		BP; \
	ADDL	b,		a

#define ROUND4(a, b, c, d, index, const, shift) \
	LEAL	const(a)(DI*1),a; \
	ORL	b,		BP; \
	XORL	c,		BP; \

		if arg.Sign != 0 {
			X = ""
			if arg.Sign < 0 {
				X = "-"
			}
			X += gnuArg(inst, -1, arg.Index)
			if arg.Shift == ShiftLeft && arg.Count == 0 {
				// nothing
			} else if arg.Shift == RotateRightExt {
				X += ", rrx"
			} else {
				X += fmt.Sprintf(", %s #%d", strings.ToLower(arg.Shift.String()), arg.Count)
			}
		} else {
			X = fmt.Sprintf("#%d", arg.Offset)
		}

		switch arg.Mode {

	exp += e
	x := Float64bits(frac)
	exp += int(x>>shift)&mask - bias
	if exp < -1075 {
		return Copysign(0, frac) // underflow
	}
	if exp > 1023 { // overflow
		if frac < 0 {
			return Inf(-1)
		}
		return Inf(1)
	}
	var m float64 = 1
	if exp < -1022 { // denormal
		exp += 53
		m = 1.0 / (1 << 53) // 2**-53
	}
	x &^= mask << shift
	x |= uint64(exp+bias) << shift
	return m * Float64frombits(x)

	// a rune/ScanToken value for them - ugly but simple.
	LSH          ScanToken = -1000 - iota // << Left shift.
	RSH                                   // >> Logical right shift.
	ARR                                   // -> Used on ARM for shift type 3, arithmetic right shift.
	ROT                                   // @> Used on ARM for shift type 4, rotate right.
	Include                               // included file started here

	{"3%0", "modulo by zero"},
	{"(1<<63)%0", "modulo of value with high bit set"},
	{"3<<-4", "negative left shift count"},
	{"3<<(1<<63)", "negative left shift count"},
	{"3>>-4", "negative right shift count"},
	{"3>>(1<<63)", "negative right shift count"},
	{"(1<<63)>>2", "right shift of value with high bit set"},
	{"(1<<62)>>2", ""},
	{`'\x80'`, "illegal UTF-8 encoding for character constant"},

    -n|--cluster-name)
      CLUSTERNAME="$2"; shift 2;;
    -r|--k8s-release)
      K8SRELEASE="--image=kindest/node:v$2"; shift 2;;
    -s|--ip-space)
      IPSPACE="$2"; shift 2;;
    -m|--mode)
      MODE="$2"; shift 2;;
    -w|--worker-nodes)
      NUMNODES="$2"; shift 2;;
    --pod-subnet)
      PODSUBNET="$2"; shift 2;;
    --service-subnet)
      SERVICESUBNET="$2"; shift 2;;
    -i|--ip-family)

	MOVW	R5, R13
	MOVW	R6, R14
	MOVW	R7, R15

	MOVW	(0*4)(R1), R8
	MOVW	R7, R9

#define ROUND1(a, b, c, d, index, const, shift) \
	ADDW	$const, a; \
	ADDW	R8, a; \
	MOVW	(index*4)(R1), R8; \
	EORW	c, R9; \
	ANDW	b, R9; \
	EORW	d, R9; \
	ADDW	R9, a; \
	RORW	$(32-shift), a; \
	MOVW	c, R9; \
	ADDW	b, a

	ROUND1(R4,R5,R6,R7, 1,0xd76aa478, 7);
	ROUND1(R7,R4,R5,R6, 2,0xe8c7b756,12);

      SINGLE_CLUSTER=1
      shift
    ;;
    --cluster)
      # No longer does anything, but keep it around to avoid breaking users
      shift 2
    ;;
    --network)
      NETWORK=$2
      shift 2
    ;;
    --mesh)
      # No longer does anything, but keep it around to avoid breaking users
      shift 2
    ;;
    --revision)
      REVISION=$2
      shift 2
    ;;
    -*)

  // CHECK-DAG: %[[CAST:.*]] = "tf.Cast"(%arg0) <{Truncate = false}>
  // CHECK-DAG: %[[SHIFT:.*]] = "tf.AddV2"(%[[CAST]], %[[HALF_RANGE]])
  // CHECK-DAG: %[[DRANGE:.*]] = "tf.Sub"(%arg2, %arg1)
  // CHECK-DAG: %[[SCALE:.*]] = "tf.Div"(%[[DRANGE]], %[[C255:.*]])
  // CHECK-DAG: %[[SS:.*]] = "tf.Mul"(%[[SHIFT]], %[[SCALE]])
  // CHECK-DAG: %[[RESULT:.*]] = "tf.AddV2"(%[[SS]], %arg1)