Introduction I get back to work on simdutf recently, and noticed that the library gained support for LoongArch64. This is a custom design and custom ISA by Loongson from China. They provide documentation for scalar ISA, but not for the vector extension. Despite that, GCC, binutils, QEMU and other tools already support the ISA. To our luck, Jiajie Chen did an impressive work of reverse engineering the vector stuff and published results online as The Unofficial LoongArch Intrinsics Guide. LoongArc...