[Bug ipa/56139] [9/10/11/12 Regression] unmodified static data could go in .rodata, not .data

["pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56139

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|tree-optimization           |ipa
   Target Milestone|---                         |13.0
           Keywords|                            |deferred
      Known to fail|                            |4.7.1
           Severity|enhancement                 |normal
                 CC|                            |marxin at gcc dot gnu.org
            Summary|unmodified static data      |[9/10/11/12 Regression]
                   |could go in .rodata, not    |unmodified static data
                   |.data                       |could go in .rodata, not
                   |                            |.data

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
We do handle:
static int x[] = {1, 2, 3, 4};

void bar (int x);

int func(int i)
{
    bar(x[i]);

    return 0;
}

Just fine. It is the IR of the other case where we mess up. And it looks like
it is a regression too. I suspect it is because we used to be able to create
back the ARARY_REF in GCC 4.6.x and that was removed in GCC 4.7 as it caused
other issues.