search for: always_true_at_runtim

Hello, This email picks up the thread that to my knowledge was last discussed here: http://lists.llvm.org/pipermail/llvm-dev/2015-July/088103.html In brief, infinite loops containing no side effects produce undefined behavior in C++ (and C in some cases), however in other languages, they have fully defined behavior. LLVM's optimizer currently assumes that infinite loops eventually terminate