---
id: pr-tilelang-2026
repo: tile-ai/tilelang
pr: 2026
title: '[Refactor] Refactor `DecoupleTypeCast` Pass'
author: LJC00118
date: '2026-04-14'
url: https://github.com/tile-ai/tilelang/pull/2026
source_category: upstream-code
architectures:
- sm100
- sm90
tags:
- fp4
- fp8
- hopper
- mla
- mxfp4
techniques: []
hardware_features:
- fp4
- fp8
- hopper
- mxfp4
kernel_types:
- mla
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 74fc9806fbf1675563e2838c4541da4ba5921b23
inclusion_reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.
changed_paths:
- src/transform/loop_vectorize.cc
- testing/python/issue/test_tilelang_issue_1106.py
- testing/python/transform/test_tilelang_transform_decouple_type_cast.py
- tilelang/transform/decouple_type_cast.py
artifact_dir: evidence/pull-bundles/tilelang/gh-2026
head_ref_oid: a506faf90a91ae72f97e5bc8b4061aa6dbecaddb
---
# [Refactor] Refactor `DecoupleTypeCast` Pass

- Repository: `tile-ai/tilelang`
- PR: [2026](https://github.com/tile-ai/tilelang/pull/2026)
- 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/transform/loop_vectorize.cc`
- `testing/python/issue/test_tilelang_issue_1106.py`
- `testing/python/transform/test_tilelang_transform_decouple_type_cast.py`
- `tilelang/transform/decouple_type_cast.py`

## Evidence Bundle

`evidence/pull-bundles/tilelang/gh-2026`
