[Bug middle-end/78074] gcc-6.2.0 miscompiles calloc reimplementation

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78074

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
          Component|c                           |middle-end
         Resolution|---                         |INVALID

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Use -fno-builtin to remove this optimization that is so GCC does not recognize
malloc/memset here.
This optimization has been there since 2014.