[Bug tree-optimization/88464] AVX-512 vectorization of masked scatter failing with "not suitable for scatter store"

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88464

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 45220
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=45220&action=edit
gcc9-pr88464.patch

Completely untested patch for the AVX512F conditional gather vectorization
support.