return
	}
	loc := ssa.LocalSlot{N: n, Type: n.Type(), Off: 0}
	values, ok := s.f.NamedValues[loc]
	if !ok {
		s.f.Names = append(s.f.Names, &loc)
		s.f.CanonicalLocalSlots[loc] = &loc
	}
	s.f.NamedValues[loc] = append(values, v)
}

// Branch is an unresolved branch.
type Branch struct {
	P *obj.Prog  // branch instruction