---
id: pr-tilelang-2008
repo: tile-ai/tilelang
pr: 2008
title: '[BugFix] Skip MMA shared buffer layout inference when layout already exists'
author: kurisu6912
date: '2026-04-15'
url: https://github.com/tile-ai/tilelang/pull/2008
source_category: upstream-code
architectures:
- sm90
tags:
- hopper
techniques: []
hardware_features:
- hopper
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: d2e02e10c51422dcdfd7925ad9d16e96540461e4
inclusion_reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.
changed_paths:
- src/op/gemm.cc
artifact_dir: evidence/pull-bundles/tilelang/gh-2008
head_ref_oid: c10b8de7861c6841ad83a65f7d18c066d36cd9ad
---
# [BugFix] Skip MMA shared buffer layout inference when layout already exists

- Repository: `tile-ai/tilelang`
- PR: [2008](https://github.com/tile-ai/tilelang/pull/2008)
- 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/gemm.cc`

## Evidence Bundle

`evidence/pull-bundles/tilelang/gh-2008`
