1 /* { dg-do run } */
2 /* { dg-require-effective-target p8vector_hw } */
3 /* { dg-options "-mdejagnu-cpu=power8 -O3" } */
4
5 #include <altivec.h>
6 void abort ();
7
8 #define N 4096
9 int ca[N] __attribute__((aligned(16)));
10 int cb[N] __attribute__((aligned(16)));
11 int cc[N] __attribute__((aligned(16)));
12 int cd[N] __attribute__((aligned(16)));
13 int hey;
14
foo()15 __attribute__((noinline)) void foo ()
16 {
17 int i;
18 vector int va, vb, vc, vd, tmp;
19 vector unsigned int threes = vec_splat_u32(3);
20 for (i = 0; i < N; i+=4) {
21 vb = vec_vsx_ld (0, &cb[i]);
22 vc = vec_vsx_ld (0, &cc[i]);
23 vd = vec_vsx_ld (0, &cd[i]);
24 tmp = vec_add (vb, vc);
25 tmp = vec_sub (tmp, vd);
26 tmp = vec_sra (tmp, threes);
27 hey = tmp[3];
28 vec_vsx_st (tmp, 0, &ca[i]);
29 }
30 }
31
init()32 __attribute__((noinline)) void init ()
33 {
34 int i;
35 for (i = 0; i < N; ++i) {
36 cb[i] = 3 * i - 2048;
37 cc[i] = -5 * i + 93;
38 cd[i] = i + 14;
39 }
40 }
41
main()42 int main ()
43 {
44 int i;
45 init ();
46 foo ();
47 for (i = 0; i < N; ++i)
48 if (ca[i] != (-3 * i - 1969) >> 3)
49 abort ();
50 if (hey != ca[N-1])
51 abort ();
52 return 0;
53 }
54