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/* 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;

}