[Bug target/88906] wrong code with -march=k6 -minline-all-stringops -minline-stringops-dynamically -mmemcpy-strategy=libcall:-1:align and vector argument

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88906

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 45477
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=45477&action=edit
gcc9-pr88906.patch

Untested fix.