[Bug tree-optimization/71142] [6/7 Regression] ICE: Segmentation fault in ssa_default_def

[asolokha at gmx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71142

Arseny Solokha <asolokha at gmx dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |asolokha at gmx dot com

--- Comment #3 from Arseny Solokha <asolokha at gmx dot com> ---
I have a version that fails on x86_64 w/ -O2 -floop-nest-optimize:

int ii, nv, fw;
int k2[4];

void
c8 (int *u0)
{
  for (;;)
    {
      ii = 0;
      if (ii < 1)
        ++ii;
      for (;;)
        {
          int vn;
          for (vn = 0; vn < 2; ++vn)
            {
              int mm;
              for (mm = 0; mm < 4; ++mm)
                k2[mm] = nv;
            }
          if (ii != 0)
            break;
          *u0 = 0;
        }
      fw = 0;
    }
}