---
id: pr-cccl-cub-8810
repo: NVIDIA/cccl
pr: 8810
title: '[Tile] Improve overlapping range check for `cuda::std::copy`'
author: miscco
date: '2026-05-05'
url: https://github.com/NVIDIA/cccl/pull/8810
source_category: upstream-code
architectures:
- sm100
tags:
- memory_primitives
- recent-kernel-path
techniques: []
hardware_features: []
kernel_types:
- memory
languages:
- cuda-cpp
captured_at: '2026-05-16'
status: merged
merge_sha: 5d7b3f49701d80c52e807deba6df2d68c90ef47d
inclusion_reason: 'Transfer primitive policy carefully: coalescing, shared-memory staging, partial tiles, and determinism are part of the contract.'
changed_paths:
- libcudacxx/include/cuda/std/__algorithm/copy.h
artifact_dir: evidence/pull-bundles/cccl-cub/gh-8810
head_ref_oid: daf3058fb392607d21b8504120833a2f84ce4a85
---
# [Tile] Improve overlapping range check for `cuda::std::copy`

- Repository: `NVIDIA/cccl`
- PR: [8810](https://github.com/NVIDIA/cccl/pull/8810)
- Decision: `Transfer primitive policy carefully: coalescing, shared-memory staging, partial tiles, and determinism are part of the contract.`
- Reason: Transfer primitive policy carefully: coalescing, shared-memory staging, partial tiles, and determinism are part of the contract.

## Changed Paths

- `libcudacxx/include/cuda/std/__algorithm/copy.h`

## Evidence Bundle

`evidence/pull-bundles/cccl-cub/gh-8810`
