---
id: pr-tilelang-1188
repo: tile-ai/tilelang
pr: 1188
title: '[Feat] Add support for `T.serial` with step and negative step'
author: kurisu6912
date: '2025-11-06'
url: https://github.com/tile-ai/tilelang/pull/1188
source_category: upstream-code
architectures:
- sm100
tags:
- tile-dsl
techniques: []
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 777881e1e8a7b78c107ae5c0a0f135a136ad4fb2
inclusion_reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.
changed_paths:
- testing/python/language/test_tilelang_language_frontend_v2.py
- tilelang/language/__init__.py
- tilelang/language/loop.py
- tilelang/language/parallel.py
- tilelang/language/persistent.py
- tilelang/language/pipeline.py
- tilelang/language/v2/builder.py
artifact_dir: evidence/pull-bundles/tilelang/gh-1188
head_ref_oid: 54f2da35e0d5c92ad2a675135c8c6e9055b915e1
---
# [Feat] Add support for `T.serial` with step and negative step

- Repository: `tile-ai/tilelang`
- PR: [1188](https://github.com/tile-ai/tilelang/pull/1188)
- 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

- `testing/python/language/test_tilelang_language_frontend_v2.py`
- `tilelang/language/__init__.py`
- `tilelang/language/loop.py`
- `tilelang/language/parallel.py`
- `tilelang/language/persistent.py`
- `tilelang/language/pipeline.py`
- `tilelang/language/v2/builder.py`

## Evidence Bundle

`evidence/pull-bundles/tilelang/gh-1188`
