I guess "it depends". If you are beginner dev (I would say over 90% of all devs) or experienced but never try to stress out your stack, it is not very likely t

I guess "it depends". If you are beginner dev (I would say over 90% of all devs) or experienced but never try to stress out your stack, it is not very likely that you are going to encounter and properly recognize an error in your compiler. Even if you encounter one, you will most likely change something until it starts to work again and then you will shrug it off. On the other hand if you are very experienced, you are routinely writing code that stresses out your compiler (think algorithmic trading, etc.) and you are in a habit of trying to get to the root cause of every failure, you are very likely to find errors. No non-trivial software is without bugs and compilers are some of the most complex tools used in our job. Because they are very complex and heavily used, all low-hanging bugs are already explored very well so what's left is typically very complex and requiring expertise to recognize and debug.