[Bug target/68543] [AArch64] Implement overflow arithmetic standard names {u,}{add,sub,mul}v4 and/or negv3

[rth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68543

Richard Henderson <rth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED
   Target Milestone|---                         |9.0

--- Comment #8 from Richard Henderson <rth at gcc dot gnu.org> ---
This feature was added in r262890, included in gcc 9.