---
id: pr-triton-10324
repo: triton-lang/triton
pr: 10324
title: '[BACKEND] Allow two_ctas=False barriers in TMA ops in a 2CTA kernel'
author: lezcano
date: '2026-05-15'
url: https://github.com/triton-lang/triton/pull/10324
source_category: upstream-code
architectures:
- sm100
tags:
- tma
techniques:
- async-copy
hardware_features:
- tma
kernel_types: []
languages:
- cuda-cpp
- triton
captured_at: '2026-05-16'
status: merged
merge_sha: 7c29da18fb07869cce1f6464fa9769caeb279580
inclusion_reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.
changed_paths:
- lib/Dialect/TritonNvidiaGPU/IR/Ops.cpp
- python/test/gluon/test_core.py
- python/triton/experimental/gluon/language/nvidia/hopper/tma.py
- test/Conversion/tritonnvidiagpu_to_llvm.mlir
- test/TritonNvidiaGPU/invalid.mlir
- third_party/nvidia/lib/TritonNVIDIAGPUToLLVM/LoadStoreOpToLLVM.cpp
artifact_dir: evidence/pull-bundles/triton/gh-10324
head_ref_oid: d400ad341e9c965ee8111a7415fa415c4742038a
---
# [BACKEND] Allow two_ctas=False barriers in TMA ops in a 2CTA kernel

- Repository: `triton-lang/triton`
- PR: [10324](https://github.com/triton-lang/triton/pull/10324)
- 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

- `lib/Dialect/TritonNvidiaGPU/IR/Ops.cpp`
- `python/test/gluon/test_core.py`
- `python/triton/experimental/gluon/language/nvidia/hopper/tma.py`
- `test/Conversion/tritonnvidiagpu_to_llvm.mlir`
- `test/TritonNvidiaGPU/invalid.mlir`
- `third_party/nvidia/lib/TritonNVIDIAGPUToLLVM/LoadStoreOpToLLVM.cpp`

## Evidence Bundle

`evidence/pull-bundles/triton/gh-10324`
