[Bug tree-optimization/40073] Vector short/char shifts generate sub-optimal code

[linkw at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=40073

--- Comment #18 from Kewen Lin <linkw at gcc dot gnu.org> ---
Created attachment 46687
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46687&action=edit
Powerpc case on vector rotation