Hello, Robert> I had hoped this would work --- and if I use llvm-g++ to compile > exceptiontest.cpp to native code it does. But it looks like the JIT > is producing stack frames that the C++ runtime doesn't like.Yes, surely. Emission of frames 'on fly' won't automatically make them visible for the unwinding runtime. JIT currently doesn't register these frames at all. I'll try to look into this issue little bit later. -- WBR, Anton Korobeynikov