Obviously broken code generation, in the sense that the code provably does not behave as it should under the spec. Usually as a result of optimization gone wron

Obviously broken code generation, in the sense that the code provably does not behave as it should under the spec. Usually as a result of optimization gone wrong. If you're asking for actual examples - sorry, you're out of luck. The 80's and 90's are a bit too long ago for me to remember details. If you prefer to believe in the magically flawless compiler fairy, knock yourself out.