Testbit is the website and project home of Tim Janik, Free Software developer, author of Beast, parts of GLib, Gtk+, GNOME and ALSA.
Intersecting Intel & AMD Instruction Set Extensions
SIMD Intel AMD FMA Clang GCC
In some of my projects, I’ve recently had the need to utilize FMA (fused-multiply-add) or AVX instructions. Compiling C/C++ on X86_64 will by default only activate MXX and a few of the early SSE extensions. The…