gcc/testsuite/gcc.dg/torture/pr26587.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target int32plus } */
   3
   4 extern void abort(void);
   5 typedef unsigned int BF_word;
   6 typedef BF_word BF_key[16 + 2];
   7 static struct {
   8     BF_key P;
   9 } BF_current;
  10 int main(void)
  11 {
  12     BF_word L;
  13     BF_word tmp4, *ptr;
  14     BF_word i;
  15     for (i = 0; i < 16 + 2; i++)
  16         BF_current.P[i] = i * 0x98765432;
  17     L = 0;
  18     ptr = BF_current.P;
  19     do {
  20         ptr += 2;
  21         L ^= BF_current.P[0];
  22         tmp4 = L >> 24;
  23         L = tmp4 ^ BF_current.P[16 + 1];
  24         *(ptr - 2) = L;
  25     } while (ptr < &BF_current.P[16 + 2]);
  26     if (L != 0x1fdb9752)
  27         abort();
  28     return 0;
  29 }