/* PR rtl-optimization/20290  */

/* We used to mis-optimize the second loop in main on at least ppc and
   arm, because tree loop would change the loop to something like:

  ivtmp.65 = &l[i];
  ivtmp.16 = 113;
  goto <bb 4> (<L4>);

<L3>:;
  *(ivtmp.65 + 4294967292B) = 9;
  i = i + 1;

<L4>:;
  ivtmp.16 = ivtmp.16 - 1;
  ivtmp.65 = ivtmp.65 + 4B;
  if (ivtmp.16 != 0) goto <L3>;

  We used to consider the increment of i as executed in every
  iteration, so we'd miscompute the final value.  */

extern void abort(void);

void check(unsigned int *l) {
    int i;
    for (i = 0; i < 288; i++)
        if (l[i] != 7 + (i < 256 || i >= 280) + (i >= 144 && i < 256))
            abort();
}

int main(void) {
    int i;
    unsigned int l[288];

    for (i = 0; i < 144; i++)
        l[i] = 8;
    for (; i < 256; i++)
        l[i] = 9;
    for (; i < 280; i++)
        l[i] = 7;
    for (; i < 288; i++)
        l[i] = 8;
    check(l);
    return 0;
}
