[Bug rtl-optimization/69891] wrong code with -mstringop-strategy=libcall @ i686

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69891

--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 37801
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37801&action=edit
gcc6-pr69891.patch

Full patch I'm going to bootstrap/regtest.