---
id: pr-tilelang-2173
repo: tile-ai/tilelang
pr: 2173
title: '[BugFix] Fix T.gemm() on SM75 (Turing) GPUs (#1992)'
author: Chennesxu
date: '2026-05-10'
url: https://github.com/tile-ai/tilelang/pull/2173
source_category: upstream-code
architectures:
- sm100
tags:
- cute
- gemm
- matmul
techniques: []
hardware_features: []
kernel_types:
- gemm
languages:
- cute-dsl
captured_at: '2026-05-16'
status: merged
merge_sha: c6f834774a2051f005a84e5dade10171d61f763f
inclusion_reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.
changed_paths:
- src/backend/cuda/op/gemm.cc
- src/tl_templates/cuda/common.h
- src/tl_templates/cuda/gemm_mma.h
- tilelang/cuda/op/gemm/__init__.py
artifact_dir: evidence/pull-bundles/tilelang/gh-2173
head_ref_oid: 5d0994b2053bde50a989b08b66510e794555ddc8
---
# [BugFix] Fix T.gemm() on SM75 (Turing) GPUs (#1992)

- Repository: `tile-ai/tilelang`
- PR: [2173](https://github.com/tile-ai/tilelang/pull/2173)
- 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/cuda/op/gemm.cc`
- `src/tl_templates/cuda/common.h`
- `src/tl_templates/cuda/gemm_mma.h`
- `tilelang/cuda/op/gemm/__init__.py`

## Evidence Bundle

`evidence/pull-bundles/tilelang/gh-2173`
