[hsn915]

> For the purpose of this example, let's say that the expensive computation is register-intensive but doesn't write any memory (so we don't need to get into alias analysis issues). Because it is register-intensive, our optimizer would like to free up the register occupied by i, replacing the second use of i by another load from mystruct.i. In C or unsafe Rust, this would be a perfectly fine optimization.

WAT?

This is obviously not "fine".

This kind of bullshit is why I said Odin's stance on UB is what swayed me to prefer it.