[Bug testsuite/102861] [12 regression] gcc.dg/vect/bb-slp-16.c fails after r12-4526

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102861

--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Btw,

  i = N;
  if (i > 0)
    {
      do
        {
          *pout++ = *pin++ + a;
          *pout++ = *pin++ + a;
          *pout++ = *pin++ + a;
          *pout++ = *pin++ + a;
          *pout++ = *pin++ + a;
          *pout++ = *pin++ + a;
          *pout++ = *pin++ + a;
          *pout++ = *pin++ + a;
          if (arr[i] = i)
            a = i;
          else
            a = 2;
        }
      while (i < N);

that was obviously bogus - you wanted if (N > 0) and initialize i to zero ...