[Bug target/65456] powerpc64le autovectorized copy loop missed optimization

[ro at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65456

--- Comment #23 from Rainer Orth <ro at gcc dot gnu.org> ---
Created attachment 35456
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35456&action=edit
bb-slp-32.c.141t.slp2 dump