llama上的一个pr，通过SIMD指令加速让WASM速度提升了2倍，根据作者说，里面99%的代码由DeepSeek R1完成。
作者的pr注释：
Surprisingly, 99% of the code in this PR is written by DeekSeek-R1. The only thing I do is to develop tests and write prompts (with some trials and errors).
Indeed, this PR aims to prove that LLMs are now capable of writing good low-level code, to a point that it can optimize its own code.