---
id: pr-tilelang-1880
repo: tile-ai/tilelang
pr: 1880
title: Avoid cvt instruction in FP4 before cuda 13.0
author: bucket-xv
date: '2026-03-05'
url: https://github.com/tile-ai/tilelang/pull/1880
source_category: upstream-code
architectures:
- sm100
tags:
- fp4
techniques: []
hardware_features:
- fp4
kernel_types: []
languages:
- cuda-cpp
captured_at: '2026-05-16'
status: merged
merge_sha: c394e37e74c34333bbcc60293c5ff038db202e25
inclusion_reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.
changed_paths:
- src/tl_templates/cuda/cuda_fp4.h
artifact_dir: evidence/pull-bundles/tilelang/gh-1880
head_ref_oid: f06b2578abcb4699500b4421f35e061cf092ea7d
---
# Avoid cvt instruction in FP4 before cuda 13.0

- Repository: `tile-ai/tilelang`
- PR: [1880](https://github.com/tile-ai/tilelang/pull/1880)
- 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

- `src/tl_templates/cuda/cuda_fp4.h`

## Evidence Bundle

`evidence/pull-bundles/tilelang/gh-1880`
