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/* { dg-do compile } */

/* { dg-require-effective-target vect_int } */

void f(unsigned char *s, unsigned char *d, int n) {

    int i;

    for (i = 0; i < n; i += 4) {

        d[i + 0] += s[i + 0];

        d[i + 1] += s[i + 1];

        d[i + 2] += s[i + 2];

        d[i + 3] += s[i + 3];

    }

}

/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" {xfail vect_no_align } } } */

/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" {xfail vect_no_align } } } */

/* { dg-final { cleanup-tree-dump "vect" } } */