[Environment Adaptation] Add support for building and testing Paddle on Windows ARM64

[MugundanMCW]

PR Category

Environment Adaptation

PR Types

New features

Description

• Add a Windows ARM64 reusable workflow and wire it into CI-Windows.
• Configure the Windows ARM64 build to use the MSVC ARM64 toolchain and prebuilt OpenBLAS.
• Adjust CMake/OpenBLAS/Crypto++ handling for Windows ARM64 build support.
• Validate by building Paddle and installing the produced wheel in the Windows ARM64 workflow.

是否引起精度变化

否

[CLAassistant]

All committers have signed the CLA.

[liuhao2638]

已完成首轮审查。当前还有需要阻塞合入的问题，详细原因和建议修复已放在 inline review comment 中，请先修复后再继续推进。

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[risemeup1111]

已复查当前更新。之前关于 Windows ARM64 wheel 打包模板未同步的问题已经解决；本轮只新增了一个非阻塞的 codestyle 行评，建议顺手清理后再合入。

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[risemeup1111]

已复查最新提交。此前 Windows ARM64 wheel 打包问题保持已解决；rerun.yml 的空白问题已部分修复，但文件末尾仍有一个多余空行，具体证据已补充在原行评线程中。未发现新的阻塞问题。

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[PaddlePaddle-bot]

🤖 Paddle-CI-Agent | pr_review | 2026-07-06 11:55:27

📋 Review 摘要

PR 概述：为 Windows ARM64 增加 OpenBLAS reusable workflow，并调整 CMake/打包/动态库加载以支持 ARM64 wheel 构建与安装验证
变更范围：.github/workflows/、ci/windows/build.bat、cmake/、paddle/fluid/pybind/、paddle/phi/backends/dynload/、python/、setup.py
影响面 Tag：[Environment Adaptation] [Execute Infrastructure]

问题

未发现阻塞性问题。PR 规范问题在下面章节报,不要在这里重复

📝 PR 规范检查

符合规范。

总体评价

本轮按风险优先审查了 Windows ARM64 workflow、MSVC ARM64 toolchain 参数、预编译 OpenBLAS 注入、Crypto++ ARM64 编译开关、pybind codegen DLL 拷贝、wheel 打包和 LAPACK 动态加载链路。未发现需要行内评论的确定性问题；未拉取 CI 日志，CI 运行结果请以检查页为准。