1 /* { dg-do compile } */ 2 /* { dg-options "-O -ftree-vectorize -mavx2" } */ 3 foo(long * p,int i)4 long foo (long *p, int i) 5 { 6 long x = 0; 7 8 while (--i) 9 x ^= p[i]; 10 11 return x; 12 } 13