[Bug middle-end/79835] load to a variable outside the scope of a function is optimized out

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79835

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|c                           |middle-end

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
You need to mark the variable as volatile as gcc thinks malloc does not change
any global visiable state.  There is a duplicate of this issue already but I
can't find it right now.