[soulbadguy]

As compiler have become more sophisticated, and hardware architecture more complicated, there are been a growing sentiment that some of the code transformation done by modern compiler make the code hard to reason about and to predict.

A lot of software engineer are seeing this as compiler engineer only caring about performance as opposed to other aspect such as debuggability, safety, compile time and productivity etc... I think that's where the "sabotage" comes from. Basically the focus on performance at the detriment of other things.

My 2 cents : The core problem is programmers expecting invariant and properties not defined in the languange standard. The compiler only garanty things as defined in the standard, expecting anything else is problematic.