I guess adding calling convention for new C++ deterministic exception option is hard and that requires changes among front-end, middle-end and back-end altogether.
However, I desperately need that feature since current C++ exceptions are totally unusable. void f() throws {} The failure bit will be passed by using CPU carry flag. Is that possible to implement it easily? Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10