[chongli]

Compiler writers have already done this. With flags you can disable any optimization you like, with all of the performance loss that entails. But then people complain that their programs are slow.

What people really want is an AI that ignores the code they write and just “does what they really meant.” But of course that’s not foolproof either. Every day people ask each other to do things and miscommunications occur, with the wrong thing being done. I don’t really know what to say other than “people should be more careful and also more forgiving.”

[coliveira]

Exactly. All the hoopla about UB is complaining about how compiler optimizations work and the fact that the standard committee makes clear (with each new meeting) what is considered undefined behavior or not. They should instead thank the committee for clarifying this.