> This is wrong, and obviously not tested. Only should subtract 2^32 if lvalue is > 2^32. _Originally posted by @dplassgit in [a40b99a](https://github.com/dplassgit/adventofcompilers/commit/a40b99a1826277aaa0cd1f12687f7ea026b0aaef#r152700101)_
Originally posted by @dplassgit in a40b99a