---
id: pr-cccl-cub-5780
repo: NVIDIA/cccl
pr: 5780
title: '[CUB] Implement `BlockLoadToShared`'
author: pauleonix
date: '2025-09-30'
url: https://github.com/NVIDIA/cccl/pull/5780
source_category: upstream-code
architectures:
- sm90
tags:
- hopper
- sm90
techniques: []
hardware_features:
- hopper
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 380be803f4e8cbc77ea468777ad5b32b7f89a380
inclusion_reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.
changed_paths:
- cub/cub/block/block_load_to_shared.cuh
- cub/test/catch2_test_block_load_to_shared.cu
artifact_dir: evidence/pull-bundles/cccl-cub/gh-5780
head_ref_oid: 38e6899d15ae60921f71d2ec693dfd0ba81a362c
---
# [CUB] Implement `BlockLoadToShared`

- Repository: `NVIDIA/cccl`
- PR: [5780](https://github.com/NVIDIA/cccl/pull/5780)
- Decision: `Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.`
- Reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.

## Changed Paths

- `cub/cub/block/block_load_to_shared.cuh`
- `cub/test/catch2_test_block_load_to_shared.cu`

## Evidence Bundle

`evidence/pull-bundles/cccl-cub/gh-5780`
