What kinds of integer sizes? Depending on the target GPU, 64-bit integers are likely to not be available at all, or be quite slow. If you need 8-bit or 16-bit i

What kinds of integer sizes? Depending on the target GPU, 64-bit integers are likely to not be available at all, or be quite slow. If you need 8-bit or 16-bit integers, on the other hand, those can be trivially emulated with 32-bit operations.