1 /* { dg-do run { target { powerpc*-*-linux* && { lp64 && p9vector_hw } } } } */
2 /* { dg-require-effective-target powerpc_p9vector_ok } */
3 /* { dg-options "-O3 -mdejagnu-cpu=power9" } */
4
5 /* Verify that we get correct code when we vectorize this SAD loop using
6 vabsdub. */
7
8 extern void abort ();
9 extern int abs (int __x) __attribute__ ((__nothrow__, __leaf__)) __attribute__ ((__const__));
10
11 static int
foo(unsigned char * w,int i,unsigned char * x,int j)12 foo (unsigned char *w, int i, unsigned char *x, int j)
13 {
14 int tot = 0;
15 for (int a = 0; a < 16; a++)
16 {
17 for (int b = 0; b < 16; b++)
18 tot += abs (w[b] - x[b]);
19 w += i;
20 x += j;
21 }
22 return tot;
23 }
24
25 void
bar(unsigned char * w,unsigned char * x,int i,int * result)26 bar (unsigned char *w, unsigned char *x, int i, int *result)
27 {
28 *result = foo (w, 16, x, i);
29 }
30
31 int
main()32 main ()
33 {
34 unsigned char m[256];
35 unsigned char n[256];
36 int sum, i;
37
38 for (i = 0; i < 256; ++i)
39 if (i % 2 == 0)
40 {
41 m[i] = (i % 8) * 2 + 1;
42 n[i] = -(i % 8);
43 }
44 else
45 {
46 m[i] = -((i % 8) * 2 + 2);
47 n[i] = -((i % 8) >> 1);
48 }
49
50 bar (m, n, 16, &sum);
51
52 if (sum != 32384)
53 abort ();
54
55 return 0;
56 }
57