I want this now...
“LLVM that even a foxgirl can understand - Guide book for writing your own compiler”

https://www.amazon.co.jp/%E3%81%8D%E3%81%A4%E3%81%AD%E3%81%95%E3%82%93%E3%81%A7%E3%82%82%E3%82%8F%E3%81%8B%E3%82%8BLLVM-%E3%82%B3%E3%83%B3%E3%83%91%E3%82%A4%E3%83%A9%E3%82%92%E8%87%AA%E4%BD%9C%E3%81%99%E3%82%8B%E3%81%9F%E3%82%81%E3%81%AE%E3%82%AC%E3%82%A4%E3%83%89%E3%83%96%E3%83%83%E3%82%AF-%E6%9F%8F%E6%9C%A8-%E9%A4%85%E5%AD%90/dp/4844334158