uecker 7 hours ago

I am not sure. I saw quite a few of these bugs where programmers were told it is UB but it isn't.

For example, people showed me

  extern void g(int x);

  int f(int a, int b)
  {
    g(b ? 42 : 43);
    return a / b;
  }
as an example on how compilers exploit "time-travelling" UB to optimize code, but it is just a compiler bug that got fixed once I reported it:

https://developercommunity.visualstudio.com/t/Invalid-optimi...

Other compilers have similar issues.

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