The OOB calculation could be wrong if the last iteration was during one of the unrolled loops. Adjust the unrolling counts to avoid this. Add a couple new backend tests that hit this failure on NVIDIA GPUs.
The OOB calculation could be wrong if the last iteration was during one of the unrolled loops. Adjust the unrolling counts to avoid this. Add a couple new backend tests that hit this failure on NVIDIA GPUs.