[Bug tree-optimization/69039] segfault with ftree-parallelize-loops=2

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69039

--- Comment #3 from vries at gcc dot gnu.org ---
(In reply to Mikhail Maltsev from comment #2)
> Reduced testcase:
> 
> $ cat ira-color.ii 

Thanks.


Slightly further reduced:
...
unsigned int b;

unsigned int
fn1 (unsigned int d)
{
  int i;

  for (i = 0; i < 1000; i++)
    b |= d;

  return b;
}
...