https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81709
--- Comment #2 from Anatol <anatol.pomozov at gmail dot com> --- Theoretically it is possible to do things like this manually. Track functions x86 extensions usage and save registers accordingly. But I would love to see a more automated and less error-prone way to do it. Similar to what CLANG compiler already does. CLANG tracks registers use and reduces a lot of burden for me. That is the reason why we switched to CLANG in our project for now but I would love to see GCC first-class support as well. What is the reason that GCC does not track SSE register usage? Is it a GGC architecture restriction or something else?
