1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
/* { dg-do run { target { powerpc*-*-linux* && { lp64 && p9vector_hw } } } } */
/* { dg-require-effective-target powerpc_p9vector_ok } */
/* { dg-options "-O3 -mcpu=power9" } */
/* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power9" } } */
/* Verify that we get correct code when we vectorize this SAD loop using
vabsduh. */
extern void abort ();
extern int abs (int __x) __attribute__ ((__nothrow__, __leaf__)) __attribute__ ((__const__));
static int
foo (unsigned short *w, int i, unsigned short *x, int j)
{
int tot = 0;
for (int a = 0; a < 16; a++)
{
for (int b = 0; b < 8; b++)
tot += abs (w[b] - x[b]);
w += i;
x += j;
}
return tot;
}
void
bar (unsigned short *w, unsigned short *x, int i, int *result)
{
*result = foo (w, 8, x, i);
}
int
main ()
{
unsigned short m[128];
unsigned short n[128];
int sum, i;
for (i = 0; i < 128; ++i)
if (i % 2 == 0)
{
m[i] = (i % 8) * 2 + 1;
n[i] = i % 8;
}
else
{
m[i] = (i % 8) * 4 - 3;
n[i] = (i % 8) >> 1;
}
bar (m, n, 8, &sum);
if (sum != 992)
abort ();
return 0;
}
|
