Sorry for late ack on the LLVM part, I can say they are did the same model/semantics, it done by our team member too, and I have regular meeting with that guy :P
Robin Dapp via Gcc-patches <gcc-patches@gcc.gnu.org>於 2023年7月26日 週三，21:47寫道： > > current llvm didn't do any pre optimization. They always > > backup+restore for each rounding mode intrinsic > > I see. There is still the option of lazily restoring the > (entry) FRM before a function call but not read the FRM > after every call. Do we have any data on how good or bad the > mode-switching LCM works when we explicitly backup and restore > for each intrinsic? > > Regards > Robin >
