[Bug tree-optimization/60115] [4.9 Regression] wrong code at -O3 on x86_64-linux-gnu

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60115

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-02-08
                 CC|                            |jakub at gcc dot gnu.org
   Target Milestone|---                         |4.9.0
            Summary|wrong code at -O3 on        |[4.9 Regression] wrong code
                   |x86_64-linux-gnu            |at -O3 on x86_64-linux-gnu
     Ever confirmed|0                           |1

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
I have to use something like:
int a, b[1];

int
main ()
{
lbl:
  for (; a; a--)
    if (b[10000000])
      goto lbl;

  return 0;
}

to actually successfully reproduce it.  Anyway, started with r204458.