On Wed, Jun 7, 2023 at 10:09 AM Helmut Zeisel via Gcc <gcc@gcc.gnu.org> wrote: > > I wrote some simple program that set a signal handler for SIGFPE, throws a > C++ exception in the signal handler > and catches the exception. > I compiled with and without -fnon-call-exceptions (on x64 Linux). > In both cases, the result was the same: the exception was caught and the > destructors were called as expected. > I also tried "-fno-non-call-exceptions -fexceptions" and got the same result. > > My question: when do I really need -fnon-call-exceptions? > Is there some simple program where I can see the difference whether it is on > or off??
On x864 Linux -fasynchronous-unwind-tables is the default. That is probably sufficient to make your test case work. Ian
