---
id: pr-flashinfer-2965
repo: flashinfer-ai/flashinfer
pr: 2965
title: Add flashinfer.fused_rmsnorm_silu() with native kernel backend
author: kahyunnam
date: '2026-04-08'
url: https://github.com/flashinfer-ai/flashinfer/pull/2965
source_category: upstream-code
architectures:
- sm100
tags:
- kernel-fusion
techniques:
- kernel-fusion
hardware_features: []
kernel_types: []
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: c2b4db2b1a84448d802f0e6ac445243312bd6a4c
inclusion_reason: kernel file changes
changed_paths:
- benchmarks/routines/flashinfer_benchmark_utils.py
- benchmarks/routines/norm.py
- benchmarks/samples/sample_testlist.txt
- csrc/flashinfer_rmsnorm_silu_binding.cu
- csrc/rmsnorm_silu.cu
- docs/api/norm.rst
- flashinfer/__init__.py
- flashinfer/aot.py
- flashinfer/jit/rmsnorm_silu.py
- flashinfer/norm/__init__.py
- include/flashinfer/norm/ln_fwd_silu_kernel.cuh
- include/flashinfer/norm/ln_silu_headers.cuh
- tests/norm/test_fused_rmsnorm_silu.py
head_ref_oid: 9f15d23929cad85760b56cd34658612760651392
artifact_dir: evidence/pull-bundles/flashinfer/gh-2965
---
# Add flashinfer.fused_rmsnorm_silu() with native kernel backend

- Repository: `flashinfer-ai/flashinfer`
- PR: [2965](https://github.com/flashinfer-ai/flashinfer/pull/2965)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `benchmarks/routines/flashinfer_benchmark_utils.py`
- `benchmarks/routines/norm.py`
- `benchmarks/samples/sample_testlist.txt`
- `csrc/flashinfer_rmsnorm_silu_binding.cu`
- `csrc/rmsnorm_silu.cu`
- `docs/api/norm.rst`
- `flashinfer/__init__.py`
- `flashinfer/aot.py`
- `flashinfer/jit/rmsnorm_silu.py`
- `flashinfer/norm/__init__.py`
- `include/flashinfer/norm/ln_fwd_silu_kernel.cuh`
- `include/flashinfer/norm/ln_silu_headers.cuh`
- `tests/norm/test_fused_rmsnorm_silu.py`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-2965`
