> For the complete documentation index, see [llms.txt](https://decaf-lang.gitbook.io/decaf-book/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://decaf-lang.gitbook.io/decaf-book/rust-kuang-jia-fen-jie-duan-zhi-dao/pa4-zhong-jian-dai-ma-you-hua.md).

# PA4：中间代码优化

- [基本块](https://decaf-lang.gitbook.io/decaf-book/rust-kuang-jia-fen-jie-duan-zhi-dao/pa4-zhong-jian-dai-ma-you-hua/ji-ben-kuai.md)
- [数据流分析概述](https://decaf-lang.gitbook.io/decaf-book/rust-kuang-jia-fen-jie-duan-zhi-dao/pa4-zhong-jian-dai-ma-you-hua/shu-ju-liu-fen-xi-gai-shu.md)
- [数据流优化概述](https://decaf-lang.gitbook.io/decaf-book/rust-kuang-jia-fen-jie-duan-zhi-dao/pa4-zhong-jian-dai-ma-you-hua/shu-ju-liu-you-hua-gai-shu.md)
- [公共表达式提取](https://decaf-lang.gitbook.io/decaf-book/rust-kuang-jia-fen-jie-duan-zhi-dao/pa4-zhong-jian-dai-ma-you-hua/gong-gong-biao-da-shi-ti-qu.md)
- [复写传播](https://decaf-lang.gitbook.io/decaf-book/rust-kuang-jia-fen-jie-duan-zhi-dao/pa4-zhong-jian-dai-ma-you-hua/fu-xie-chuan-bo.md)
- [常量传播](https://decaf-lang.gitbook.io/decaf-book/rust-kuang-jia-fen-jie-duan-zhi-dao/pa4-zhong-jian-dai-ma-you-hua/chang-liang-chuan-bo.md)
- [死代码消除](https://decaf-lang.gitbook.io/decaf-book/rust-kuang-jia-fen-jie-duan-zhi-dao/pa4-zhong-jian-dai-ma-you-hua/si-dai-ma-xiao-chu.md)