[Bug tree-optimization/77654] restrict pointer attribute not preserved with -fprefetch-loop-arrays

[doug.gilmore at imgtec dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77654

--- Comment #2 from Doug Gilmore <doug.gilmore at imgtec dot com> ---
Created attachment 39652
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39652&action=edit
Prototype fix for bug.