[Bug rtl-optimization/104049] [12 Regression] vec_select to subreg lowering causes superfluous moves

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104049

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The regression showing up is the same as PR 104059, that is 
r12-5358-g32221357007666124409ec3ee0d3a1cf263ebc9e .