---
id: pr-vllm-19767
repo: vllm-project/vllm
pr: 19767
title: '[torch.compile][ROCm][V1] Enable attention output FP8 fusion for V1 attention backends'
author: gshtras
date: '2025-09-10'
url: https://github.com/vllm-project/vllm/pull/19767
source_category: upstream-code
architectures:
- sm100
tags: []
techniques: []
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 9a161307f5f096c63ae4134c5055d87a36d224a8
inclusion_reason: defer
changed_paths:
- tests/compile/test_fusion_attn.py
- vllm/attention/ops/chunked_prefill_paged_decode.py
- vllm/attention/ops/prefix_prefill.py
- vllm/attention/ops/triton_unified_attention.py
- vllm/compilation/backends.py
- vllm/compilation/fusion_attn.py
- vllm/model_executor/layers/quantization/utils/w8a8_utils.py
- vllm/v1/attention/backends/triton_attn.py
artifact_dir: evidence/pull-bundles/vllm/gh-19767
head_ref_oid: cb9416948558e5efb1349a7ff67b506c8ab20f42
---
# [torch.compile][ROCm][V1] Enable attention output FP8 fusion for V1 attention backends

- Repository: `vllm-project/vllm`
- PR: [19767](https://github.com/vllm-project/vllm/pull/19767)
- Decision: `defer`
- Reason: defer

## Changed Paths

- `tests/compile/test_fusion_attn.py`
- `vllm/attention/ops/chunked_prefill_paged_decode.py`
- `vllm/attention/ops/prefix_prefill.py`
- `vllm/attention/ops/triton_unified_attention.py`
- `vllm/compilation/backends.py`
- `vllm/compilation/fusion_attn.py`
- `vllm/model_executor/layers/quantization/utils/w8a8_utils.py`
- `vllm/v1/attention/backends/triton_attn.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-19767`
