Pull Request

变更摘要

本 PR 修复 GE AutoFuse Fuse 阶段 unit-repeat 轴映射的问题：原 BuildUnitRepeatAxisIndex 采用倒序贪心匹配，在存在同下标 unit 轴时会导致同下标轴被错误交换。本次修改在 asc_graph_axis_mapping.cpp 的 BuildUnitRepeatAxisIndex 中新增同下标优先的预映射逻辑（先保留 node_repeats[index] == base_repeats[index] || node_repeats[index] == 1 || base_repeats[index] == 1 的同下标映射，剩余轴再走倒序贪心匹配），并在 AscBackendFusionDecider::UnifySubgraphAxis、AscBackendFusionDecider::Fuse、AscGraphAxisMapping::CanLoopMerge、AscGraphAxisMapping::CheckSubGraphHorizontalAxisMapping 中补充 [AxisDiag] 轴映射诊断日志，同时更新并新增 DSSM 007 相关回归测试用例。

主要改动

• 同下标优先轴映射逻辑：在 BuildUnitRepeatAxisIndex 中新增 same_index_can_map / reserve_same_index / is_unmapped 辅助逻辑，先为满足同下标匹配条件的轴建立映射（node_to_base[index] = index），倒序贪心匹配时跳过已映射的轴，避免同下标 unit 轴被交换。
• 轴映射诊断日志：在 AscBackendFusionDecider::UnifySubgraphAxis、AscBackendFusionDecider::Fuse、CanLoopMerge、CheckSubGraphHorizontalAxisMapping 中新增 [AxisDiag] 日志，输出节点名、原始轴信息、映射结果及子集关系（is_axis_subset、graph_axis_fallback 等），便于定位轴映射问题。
• 回归测试更新与新增：asc_graph_axis_mapping_unittest2.cpp 中原 AscGraphAxisMapping_CanAxisMapAllowUnitRepeat_Rank1 用例期望由 {{0, 2}, {1, 4}} 更新为 {{0, 2}, {1, 3}}，并新增 AscGraphAxisMapping_CanAxisMapAllowUnitRepeat_PreserveSameIndex 用例验证同下标映射优先（temp_node2_map == {{0, 0}, {1, 1}, {2, 2}}）。

代码审查

✅ 未发现问题

Thanks for your pull-request.
The full list of commands accepted by me can be found at here.
You can get sig-info at here.
You can self-configure the PR merge rules for this repository. For more details, please refer to Here.
For more, you also can visit HICANN.

PR Approval Progress

✅ Congratulations! All modules have met the lgtm and approve requirements.

Module Approval Details

💡 Tip:

• Committer can comment /approve or /lgtm
• Commenting /approve implies both code review (lgtm) and intent to merge (approve)

CLA Signature Pass

ling-DT, thanks for your pull request. All authors of the commits have signed the CLA. 👍

/approve

The following users do not have permission to comment /lgtm or /approve on any module in this PR:
xuyafei