The agent would not have looked for this without studying other backends during the research phase. From the CPU code alone, the two-step approach looks fine.
令人惊讶的是：AI代理通过研究其他后端实现发现了CPU后端中缺失的优化机会。这表明AI代理能够跨代码库进行知识迁移，找到人类开发者可能忽略的优化点，展示了AI在代码理解方面的独特优势。