All other arguments aside... Yes, people do review compiler output, all the time in fact! No. In reality, this is almost never done anymore. We used to do it

All other arguments aside... Yes, people do review compiler output, all the time in fact! No. In reality, this is almost never done anymore. We used to do it all the time back when performance mattered, but that was then. HN readers don't have to like it, and obviously they (we) don't, but shooting the messenger won't help.