---
id: pr-tilelang-2163
repo: tile-ai/tilelang
pr: 2163
title: '[Backend] Share common GPU tile op lowerers'
author: LeiWang1999
date: '2026-05-07'
url: https://github.com/tile-ai/tilelang/pull/2163
source_category: upstream-code
architectures:
- sm100
tags:
- fused-op
techniques:
- kernel-fusion
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 38983368fa13287a8f21d6ea1ff1136d383b84b1
inclusion_reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.
changed_paths:
- src/backend/common/op/atomic_reduce.h
- src/backend/common/op/cumsum.h
- src/backend/common/op/fill.h
- src/backend/common/op/finalize_reducer.h
- src/backend/common/op/reduce.h
- src/backend/common/op/transpose.h
- src/backend/cuda/op/atomic_reduce.cc
- src/backend/cuda/op/cumsum.cc
- src/backend/cuda/op/fill.cc
- src/backend/cuda/op/finalize_reducer.cc
- src/backend/cuda/op/reduce.cc
- src/backend/cuda/op/transpose.cc
- src/backend/rocm/op/atomic_reduce.cc
- src/backend/rocm/op/cumsum.cc
- src/backend/rocm/op/fill.cc
- src/backend/rocm/op/finalize_reducer.cc
- src/backend/rocm/op/reduce.cc
- src/backend/rocm/op/transpose.cc
artifact_dir: evidence/pull-bundles/tilelang/gh-2163
head_ref_oid: 8d4e3f4729c14a058c5225f1e617fbe32e88d190
---
# [Backend] Share common GPU tile op lowerers

- Repository: `tile-ai/tilelang`
- PR: [2163](https://github.com/tile-ai/tilelang/pull/2163)
- 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/backend/common/op/atomic_reduce.h`
- `src/backend/common/op/cumsum.h`
- `src/backend/common/op/fill.h`
- `src/backend/common/op/finalize_reducer.h`
- `src/backend/common/op/reduce.h`
- `src/backend/common/op/transpose.h`
- `src/backend/cuda/op/atomic_reduce.cc`
- `src/backend/cuda/op/cumsum.cc`
- `src/backend/cuda/op/fill.cc`
- `src/backend/cuda/op/finalize_reducer.cc`
- `src/backend/cuda/op/reduce.cc`
- `src/backend/cuda/op/transpose.cc`
- `src/backend/rocm/op/atomic_reduce.cc`
- `src/backend/rocm/op/cumsum.cc`
- `src/backend/rocm/op/fill.cc`
- `src/backend/rocm/op/finalize_reducer.cc`
- `src/backend/rocm/op/reduce.cc`
- `src/backend/rocm/op/transpose.cc`

## Evidence Bundle

`evidence/pull-bundles/tilelang/gh-2163`
