[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

[aldyh at gcc dot gnu.org]

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

Aldy Hernandez <aldyh at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |aldyh at gcc dot gnu.org

--- Comment #1 from Aldy Hernandez <aldyh at gcc dot gnu.org> ---
Hi.  The known to work field is empty.  Is this a regression?

I can't reproduce on a cross build to --target=aarch64-linux by running cc1. 
What options causes this to fail?  Could you post a preprocessed file for the
test?