---
id: pr-tilelang-2126
repo: tile-ai/tilelang
pr: 2126
title: '[Feature][Fix] Extend TCGEN5 F8F6F4 dtype plumbing'
author: TerminusAkivili
date: '2026-05-06'
url: https://github.com/tile-ai/tilelang/pull/2126
source_category: upstream-code
architectures:
- sm100
tags:
- fp4
techniques: []
hardware_features:
- fp4
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 0c836912c157c1a1a78e57bbee285196bc02d432
inclusion_reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.
changed_paths:
- src/op/tcgen5_meta.h
- src/target/ptx.cc
- src/target/ptx.h
- src/tl_templates/cuda/common.h
- src/tl_templates/cuda/instruction/tcgen05mma.h
- tilelang/intrinsics/mma_macro_generator.py
- tilelang/intrinsics/tcgen05_macro_generator.py
artifact_dir: evidence/pull-bundles/tilelang/gh-2126
head_ref_oid: 6ae9f96e09bfc6afe35538c6e347b66b0cc7d298
---
# [Feature][Fix] Extend TCGEN5 F8F6F4 dtype plumbing

- Repository: `tile-ai/tilelang`
- PR: [2126](https://github.com/tile-ai/tilelang/pull/2126)
- 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/op/tcgen5_meta.h`
- `src/target/ptx.cc`
- `src/target/ptx.h`
- `src/tl_templates/cuda/common.h`
- `src/tl_templates/cuda/instruction/tcgen05mma.h`
- `tilelang/intrinsics/mma_macro_generator.py`
- `tilelang/intrinsics/tcgen05_macro_generator.py`

## Evidence Bundle

`evidence/pull-bundles/tilelang/gh-2126`
