return f.constVal(OpConst64, t, c, true)
}
func (f *Func) ConstFloat32(t *types.Type, c float64) *Value {
	return f.constVal(OpConst32F, t, int64(math.Float64bits(float64(float32(c)))), true)
}
func (f *Func) ConstFloat64(t *types.Type, c float64) *Value {
	return f.constVal(OpConst64F, t, int64(math.Float64bits(c)), true)
}

func (f *Func) ConstSlice(t *types.Type) *Value {
	return f.constVal(OpConstSlice, t, constSliceMagic, false)