gcc/testsuite/gcc.dg/torture/20131122-0.c

   1 /* { dg-do run } */
   2
   3 extern int memcmp (const void *, const void *, __SIZE_TYPE__);
   4 extern void abort (void);
   5
   6 void __attribute__ ((noinline))
   7 f (long *s, long *t, int len1, int len2)
   8 {
   9   int i, j;
  10
  11   j = 2;
  12   for (i = len1 - 1; i >= 0; i--)
  13     {
  14       s[j--] = (i < len2 ? t[i] : t[len2 - 1] < 0 ? -1 : 0);
  15       if (j < 0)
  16         break;
  17     }
  18 }
  19
  20 long s[3];
  21 long t[3];
  22
  23 int
  24 main (void)
  25 {
  26   t[0] = 1;
  27   t[1] = 2;
  28   t[2] = 3;
  29   f (s, t, 3, 3);
  30   if (memcmp (s, t, sizeof (s)) != 0)
  31     abort ();
  32   return 0;
  33 }
  34