[Bug c++/88601] We may consider adding __builtin_convertvector and __builtin_shufflevector for better compaitbility with Clang

[glisse at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88601

--- Comment #1 from Marc Glisse <glisse at gcc dot gnu.org> ---
__builtin_convertvector is a dup of at least PR85052 and PR61731.