I mean, the fiddly-ness comes from wanting to use inline assembly, which is often considered to be niche and second-class in most modern languages. Even writing

I mean, the fiddly-ness comes from wanting to use inline assembly, which is often considered to be niche and second-class in most modern languages. Even writing the asm in the first place is full of footguns [0]. There are ways to reduce the optimization barrier of asm, and implementing constant folding is one such example. But I can see why most compiler writers wouldn't be that interested in it. [0] https://news.ycombinator.com/item?id=40607845 https://news.ycombinator.com/item?id=40607845