---
id: pr-tilelang-1931
repo: tile-ai/tilelang
pr: 1931
title: '[Runtime] Improve TMA descriptor diagnostics'
author: LeiWang1999
date: '2026-03-13'
url: https://github.com/tile-ai/tilelang/pull/1931
source_category: upstream-code
architectures:
- sm100
tags:
- matmul
techniques:
- async-copy
hardware_features:
- tma
kernel_types:
- gemm
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 8fe367c81f049dd23609a1b1858d2d0f19d7cb55
inclusion_reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.
changed_paths:
- src/runtime/runtime.cc
- src/target/codegen_c_host.cc
- src/target/codegen_cpp.cc
- testing/python/runtime/test_tilelang_runtime_tma_validation.py
artifact_dir: evidence/pull-bundles/tilelang/gh-1931
head_ref_oid: 5babcfbfae3cacf5b57cdd4d323bfd8c98c8b083
---
# [Runtime] Improve TMA descriptor diagnostics

- Repository: `tile-ai/tilelang`
- PR: [1931](https://github.com/tile-ai/tilelang/pull/1931)
- 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/runtime/runtime.cc`
- `src/target/codegen_c_host.cc`
- `src/target/codegen_cpp.cc`
- `testing/python/runtime/test_tilelang_runtime_tma_validation.py`

## Evidence Bundle

`evidence/pull-bundles/tilelang/gh-1931`
