[Bug target/78243] incorrect byte offset in vextractuh with -mcpu=power9

[acsawdey at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78243

--- Comment #1 from acsawdey at gcc dot gnu.org ---
Created attachment 39992
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39992&action=edit
complete asm output