变更摘要

本 PR 修复 quant_batch_matmul_inplace_add 示例中 MXFP8 ACLNN 调用的 workspace 内存泄漏问题：AclnnQuantBatchMatmulInplaceAddTest 中调用 aclrtMalloc 成功分配 workspace 后，正常返回与后续错误返回路径均未执行配对的 aclrtFree。修复方式是在 workspace 分配的 if 块之后构造 std::unique_ptr<void, aclError (*)(void*)> workspaceAddrPtr(workspaceAddr, aclrtFree)，让 workspace 生命周期覆盖后续算子调用与流同步，并在函数退出时自动释放；同时补充了文件末尾缺失的换行符。

主要改动

• 引入 RAII 管理 workspace 释放：在 workspaceAddr 分配成功之后新增 std::unique_ptr<void, aclError (*)(void*)> workspaceAddrPtr(workspaceAddr, aclrtFree)，以 aclrtFree 作为自定义删除器，使函数在正常返回、CHECK_RET 提前返回及零 workspace 路径上均能自动释放内存，避免泄漏。
• 补全文件末尾换行：在 test_aclnn_quant_batch_matmul_inplace_add_mxfp8.cpp 末尾为关闭的 main 函数大括号补上换行符（消除 "No newline at end of file" 提示）。

代码审查

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