[Bug rtl-optimization/65235] [4.8/4.9/5 Regression] Simplifying vec_select of vec_concat miscompiles when first element of vec_concat is const_int

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65235

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |5.0
            Summary|[4.8, 4.9, 5 Regression]    |[4.8/4.9/5 Regression]
                   |Simplifying vec_select of   |Simplifying vec_select of
                   |vec_concat miscompiles when |vec_concat miscompiles when
                   |first element of vec_concat |first element of vec_concat
                   |is const_int                |is const_int