---
id: pr-tilelang-1764
repo: tile-ai/tilelang
pr: 1764
title: '[Feature] Support tcgen5mma lowering for `.kind::i8`'
author: Rachmanino
date: '2026-02-02'
url: https://github.com/tile-ai/tilelang/pull/1764
source_category: upstream-code
architectures:
- sm100
tags:
- arch_pipeline
- benchmark_test
- blackwell
- compiler_runtime
- cuda backend
- gemm_quant
- matmul
techniques:
- fine-grained-quantization
- pipeline-stages
hardware_features:
- blackwell
- tcgen05
kernel_types:
- compiler
- gemm
- runtime
languages:
- cuda-cpp
- cute-dsl
captured_at: '2026-05-16'
status: merged
merge_sha: 727d10831530047f90f6d64181106ab714be0e23
inclusion_reason: 'Extract the architecture assumption first: SM target, TMA/WGMMA/tcgen path, cluster use, and pipeline stages.'
changed_paths:
- maint/gemm_v2/correctness_evaluation_tcgen05.py
- src/op/tcgen5_meta.h
- src/target/codegen_cuda.cc
- src/tl_templates/cuda/instruction/tcgen05mma.h
- testing/python/kernel/test_tilelang_kernel_int8_gemm_tcgen5.py
- tilelang/intrinsics/mma_macro_generator.py
- tilelang/tileop/gemm/gemm_tcgen05.py
artifact_dir: evidence/pull-bundles/tilelang/gh-1764
head_ref_oid: ff0ab3ab9f370a36c8fc7644335dccce6737f9a8
---
# [Feature] Support tcgen5mma lowering for `.kind::i8`

- Repository: `tile-ai/tilelang`
- PR: [1764](https://github.com/tile-ai/tilelang/pull/1764)
- Decision: `Extract the architecture assumption first: SM target, TMA/WGMMA/tcgen path, cluster use, and pipeline stages.`
- Reason: Extract the architecture assumption first: SM target, TMA/WGMMA/tcgen path, cluster use, and pipeline stages.

## Changed Paths

- `maint/gemm_v2/correctness_evaluation_tcgen05.py`
- `src/op/tcgen5_meta.h`
- `src/target/codegen_cuda.cc`
- `src/tl_templates/cuda/instruction/tcgen05mma.h`
- `testing/python/kernel/test_tilelang_kernel_int8_gemm_tcgen5.py`
- `tilelang/intrinsics/mma_macro_generator.py`
- `tilelang/tileop/gemm/gemm_tcgen05.py`

## Evidence Bundle

`evidence/pull-bundles/tilelang/gh-1764`
