OpenBSD (+LibreSSL) folks have been uncomfortable with unpredictable compiler optimizations for quite a while too. Here&#x27;s a previous discussion on compilers in OpenBSD: <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=9322259" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=9322259</a>