Le 30 mai 2024 17:03:09 GMT+03:00, "Tomas Härdin" <g...@haerdin.se> a écrit : >> I don't get how that prevents using the GCC and Clang builtins (on >> GCC and Clang). > >Does MSVC have builtins for these?
I don't know, but insofar as MSVC is used for x86, it should use x86 instructions rather than the complex fallback algo anyway, be it via built-ins, or assembler. Either way, I don't see how that detracts from using the built-ins on compilers that do have them. > Do all compilers we support? No, unless all other compilers are C23 (CTZ and CLZ are in stdbit.h). Again, that's hardly a reason not to use built-ins where available. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
