---
id: pr-flashinfer-1571
repo: flashinfer-ai/flashinfer
pr: 1571
title: 'bugfix: fix cuda version guard macros'
author: nvjullin
date: '2025-08-26'
url: https://github.com/flashinfer-ai/flashinfer/pull/1571
source_category: upstream-code
architectures:
- sm100
tags:
- kernel-fusion
- moe
techniques:
- kernel-fusion
hardware_features: []
kernel_types:
- moe
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: d2cb538d760c3cdc1f7f5bfea7a48afb6fac84f3
inclusion_reason: kernel file changes
changed_paths:
- include/flashinfer/comm/trtllm_allreduce_fusion.cuh
- include/flashinfer/comm/trtllm_moe_allreduce_fusion.cuh
- include/flashinfer/cutlass_utils.cuh
head_ref_oid: 992b7aac355dbe9c43b48a424619e2e2d2405b47
artifact_dir: evidence/pull-bundles/flashinfer/gh-1571
---
# bugfix: fix cuda version guard macros

- Repository: `flashinfer-ai/flashinfer`
- PR: [1571](https://github.com/flashinfer-ai/flashinfer/pull/1571)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `include/flashinfer/comm/trtllm_allreduce_fusion.cuh`
- `include/flashinfer/comm/trtllm_moe_allreduce_fusion.cuh`
- `include/flashinfer/cutlass_utils.cuh`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-1571`
