gcc/testsuite/gcc.dg/vect/pr81196-2.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target vect_int } */
   3 /* For negative stride we need to reverse the aligned load.  */
   4 /* { dg-require-effective-target vect_perm } */
   5
   6 void b (int *p)
   7 {
   8   p = (int *)__builtin_assume_aligned(p, __BIGGEST_ALIGNMENT__);
   9   int *q = p + 255;
  10   for(; p < q; ++p, --q)
  11     {
  12       int t = *p;
  13       *p = *q;
  14       *q = t;
  15     }
  16 }
  17
  18 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */