[Bug target/96933] rs6000: inefficient code for char/short vec CTOR

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96933

--- Comment #1 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Is that actually faster though?  The original has shorter dependency
chains.  Or is this to avoid some LHS/SHL?