blob: de97125b4cf8c0c18325cee661d4729ce57ec880 (
plain)
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
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/* { dg-require-effective-target alloca } */
/* Integer reductions. */
#define vl 32
int
main(void)
{
const int n = 1000;
int i;
int result, array[n];
int lresult;
/* '+' reductions. */
#pragma acc parallel vector_length (vl)
#pragma acc loop reduction (+:result)
for (i = 0; i < n; i++)
result += array[i];
/* '*' reductions. */
#pragma acc parallel vector_length (vl)
#pragma acc loop reduction (*:result)
for (i = 0; i < n; i++)
result *= array[i];
// result = 0;
// vresult = 0;
//
// /* 'max' reductions. */
// #pragma acc parallel vector_length (vl)
// #pragma acc loop reduction (+:result)
// for (i = 0; i < n; i++)
// result = result > array[i] ? result : array[i];
//
// /* 'min' reductions. */
// #pragma acc parallel vector_length (vl)
// #pragma acc loop reduction (+:result)
// for (i = 0; i < n; i++)
// result = result < array[i] ? result : array[i];
/* '&' reductions. */
#pragma acc parallel vector_length (vl)
#pragma acc loop reduction (&:result)
for (i = 0; i < n; i++)
result &= array[i];
/* '|' reductions. */
#pragma acc parallel vector_length (vl)
#pragma acc loop reduction (|:result)
for (i = 0; i < n; i++)
result |= array[i];
/* '^' reductions. */
#pragma acc parallel vector_length (vl)
#pragma acc loop reduction (^:result)
for (i = 0; i < n; i++)
result ^= array[i];
/* '&&' reductions. */
#pragma acc parallel vector_length (vl)
#pragma acc loop reduction (&&:lresult)
for (i = 0; i < n; i++)
lresult = lresult && (result > array[i]);
/* '||' reductions. */
#pragma acc parallel vector_length (vl)
#pragma acc loop reduction (||:lresult)
for (i = 0; i < n; i++)
lresult = lresult || (result > array[i]);
return 0;
}
|