gcc/testsuite/gcc.c-torture/compile/pr32349.c

   1 /* { dg-options "-fmodulo-sched" } */
   2
   3
   4 extern long *x1, *x2, *x3;
   5
   6 int
   7 foo ()
   8 {
   9   /* Switching the following two lines prevents the ICE.  */
  10   long *p1, *p2;
  11   long m, n, i;
  12
  13   p1 = x1;
  14   p2 = x2;
  15   n = 0;
  16   for (i = *x3; 0 < i; i--)
  17     {
  18       m = (*p1++) ^ (*p2++);
  19       m = (m & 0x55555555) + ((m >> 1) & 0x55555555);
  20       m = (m & 0x33333333) + ((m >> 2) & 0x33333333);
  21       m = (m + (m >> 4)) & 0x0f0f0f0f;
  22       m = (m + (m >> 8));
  23       n += m;
  24     }
  25   return n;
  26 }