[Bug target/106770] PPCLE: Unnecessary xxpermdi before mfvsrd

[jens.seifert at de dot ibm.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106770

--- Comment #1 from Jens Seifert <jens.seifert at de dot ibm.com> ---
vec_extract(vr, 1) should extract the left element. But xxpermdi x,x,x,3
extracts the right element.
Looks like a bug in vec_extract for PPCLE and not a problem regarding
unnecessary xxpermdi.