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

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target vect_int } */
   3 /* { dg-require-effective-target vect_perm_short } */
   4
   5 void b(short*p){
   6   p=(short*)__builtin_assume_aligned(p,64);
   7   short*q=p+255;
   8   for(;p<q;++p,--q){
   9     short t=*p;*p=*q;*q=t;
  10   }
  11 }
  12 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */