}
			return v
		}

		// map <--> *hmap
		if to.Kind() == types.TMAP && from == types.NewPtr(reflectdata.MapType()) {
			return v
		}

		types.CalcSize(from)
		types.CalcSize(to)
		if from.Size() != to.Size() {
			s.Fatalf("CONVNOP width mismatch %v (%d) -> %v (%d)\n", from, from.Size(), to, to.Size())
			return nil
		}
		if etypesign(from.Kind()) != etypesign(to.Kind()) {