[Bug tree-optimization/69848] poor vectorization of a loop from SPEC2006 464.h264ref

[wilson at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69848

--- Comment #2 from Jim Wilson <wilson at gcc dot gnu.org> ---
Created attachment 37717
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37717&action=edit
better code from hand optimizing the gcc output