v = toint(v)
			return v
		case t.IsFloat():
			v = toflt(v)
			v = truncfltlit(v, t)
			return v
		case t.IsComplex():
			v = tocplx(v)
			v = trunccmplxlit(v, t)
			return v
		}
	}

	return constant.MakeUnknown()
}

func tocplx(v constant.Value) constant.Value {
	return constant.ToComplex(v)
}

func toflt(v constant.Value) constant.Value {
	if v.Kind() == constant.Complex {