---
id: pr-flashinfer-2049
repo: flashinfer-ai/flashinfer
pr: 2049
title: '[BUG] Fix trtllm-gen fp4 moe renormalize routing'
author: IwakuraRein
date: '2025-11-06'
url: https://github.com/flashinfer-ai/flashinfer/pull/2049
source_category: upstream-code
architectures:
- sm100
tags:
- fp4
- kernel-fusion
- moe
techniques:
- kernel-fusion
hardware_features:
- fp4
kernel_types:
- moe
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: 55ea78719434916870d819f6278d5ed4fa977c19
inclusion_reason: kernel file changes
changed_paths:
- csrc/trtllm_fused_moe_routing_renormalize.cu
- tests/moe/test_trtllm_gen_routed_fused_moe.py
head_ref_oid: d90ea0e350e402661e093775416837485fb18761
artifact_dir: evidence/pull-bundles/flashinfer/gh-2049
---
# [BUG] Fix trtllm-gen fp4 moe renormalize routing

- Repository: `flashinfer-ai/flashinfer`
- PR: [2049](https://github.com/flashinfer-ai/flashinfer/pull/2049)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `csrc/trtllm_fused_moe_routing_renormalize.cu`
- `tests/moe/test_trtllm_gen_routed_fused_moe.py`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-2049`
