https://blog.wongcw.com/2021/12/17/%e9%be%8d%e8%8a%af%e5%b8%8c%e6%9c%9b%e5%9c%a8llvm%e4%b8%ad%e5%af%a6%e7%8f%be%e5%b0%8dloongarch%e7%9a%84%e4%b8%bb%e7%b7%9a%e6%94%af%e6%8f%b4/
龍芯希望在LLVM中實現對LoongArch的主線支援