---
id: pr-tilelang-1246
repo: tile-ai/tilelang
pr: 1246
title: '[Bugfix] Fix fp8 dtype for some cases'
author: LeiWang1999
date: '2025-11-13'
url: https://github.com/tile-ai/tilelang/pull/1246
source_category: upstream-code
architectures:
- sm100
tags:
- cute
techniques: []
hardware_features:
- fp8
kernel_types: []
languages:
- cute-dsl
captured_at: '2026-05-16'
status: merged
merge_sha: 63bf16093cc1bfb1abfacb7dc10a3c73a3dd0530
inclusion_reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.
changed_paths:
- examples/deepseek_v32/fp8_lighting_indexer.py
- src/tl_templates/cuda/gemm_mma.h
artifact_dir: evidence/pull-bundles/tilelang/gh-1246
head_ref_oid: d1c63481583dcd5dd4cd931342adf5b2d0185db8
---
# [Bugfix] Fix fp8 dtype for some cases

- Repository: `tile-ai/tilelang`
- PR: [1246](https://github.com/tile-ai/tilelang/pull/1246)
- 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

- `examples/deepseek_v32/fp8_lighting_indexer.py`
- `src/tl_templates/cuda/gemm_mma.h`

## Evidence Bundle

`evidence/pull-bundles/tilelang/gh-1246`
