}

func FloatForComplex(t *Type) *Type {
	switch t.Kind() {
	case TCOMPLEX64:
		return Types[TFLOAT32]
	case TCOMPLEX128:
		return Types[TFLOAT64]
	}
	base.Fatalf("unexpected type: %v", t)
	return nil
}

func ComplexForFloat(t *Type) *Type {
	switch t.Kind() {
	case TFLOAT32:
		return Types[TCOMPLEX64]
	case TFLOAT64:
		return Types[TCOMPLEX128]
	}

func (s *regAllocState) compatRegs(t *types.Type) regMask {
	var m regMask
	if t.IsTuple() || t.IsFlags() {
		return 0
	}
	if t.IsFloat() || t == types.TypeInt128 {
		if t.Kind() == types.TFLOAT32 && s.f.Config.fp32RegMask != 0 {
			m = s.f.Config.fp32RegMask
		} else if t.Kind() == types.TFLOAT64 && s.f.Config.fp64RegMask != 0 {
			m = s.f.Config.fp64RegMask
		} else {
			m = s.f.Config.fpRegMask
		}