https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99785
--- Comment #20 from Richard Biener <rguenth at gcc dot gnu.org> --- Created attachment 50852 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50852&action=edit prototype for __builtin_shufflevector So this is a prototype for __builtin_shufflevector support. Most notably the C++ FE misses support for templates.