---
id: pr-flashinfer-1926
repo: flashinfer-ai/flashinfer
pr: 1926
title: Add layernorm op for inputs of mixed dtype
author: akhilg-nv
date: '2025-10-15'
url: https://github.com/flashinfer-ai/flashinfer/pull/1926
source_category: upstream-code
architectures:
- sm100
tags:
- gemm
techniques: []
hardware_features: []
kernel_types: []
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: 9f25eee4d9c3397f43c9ad62bd909ed88f124be1
inclusion_reason: kernel file changes
changed_paths:
- csrc/flashinfer_norm_binding.cu
- csrc/norm.cu
- docs/api/norm.rst
- flashinfer/__init__.py
- flashinfer/jit/norm.py
- flashinfer/norm.py
- include/flashinfer/norm.cuh
- include/flashinfer/trtllm/common/cudaUtils.h
- include/flashinfer/trtllm/common/reduceKernelUtils.cuh
- tests/utils/test_norm.py
head_ref_oid: 9c4d04d7abd17bdb56427f029e47f0795bf15038
artifact_dir: evidence/pull-bundles/flashinfer/gh-1926
---
# Add layernorm op for inputs of mixed dtype

- Repository: `flashinfer-ai/flashinfer`
- PR: [1926](https://github.com/flashinfer-ai/flashinfer/pull/1926)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `csrc/flashinfer_norm_binding.cu`
- `csrc/norm.cu`
- `docs/api/norm.rst`
- `flashinfer/__init__.py`
- `flashinfer/jit/norm.py`
- `flashinfer/norm.py`
- `include/flashinfer/norm.cuh`
- `include/flashinfer/trtllm/common/cudaUtils.h`
- `include/flashinfer/trtllm/common/reduceKernelUtils.cuh`
- `tests/utils/test_norm.py`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-1926`
